DK177640B1 - Lubricant container with lockable supply device - Google Patents

Abstract

The invention relates to a lubricant container (3) for a lubrication pump (2), in particular for a wind power plant, with a supply chamber (29) which can be repeatedly filled with lubricant (9) and which is connected via an emptying opening (21) to the lubricant container ( 3) environment, with a supply device (24), comprising a follower piston (27) adjacent to the supply chamber (29) and arranged slidably in the lubricant container (3) in and against an exhaust direction (28), and comprising a spring element (32), by means of which an exhaust force (33) acting on the follower piston (27) in the direction of ejection (28) can be produced, as well as a lubrication plant (1) with such a lubricant container connected to an intake port in the lubricant pump. In order to facilitate maintenance, filling and replacement of the lubricant container (3) and the lubrication system (1) and to ensure a high level of operational reliability, the invention ensures that the lubricant container (3) comprises a holding device (26) which can be transferred to a locking position and in the locking position. engages the supply device (24) and holds it in the locking position against the exhaust force (33).

Description

DK 177640 B1

Lubricant container with lockable supply device

The present invention relates to a lubricant container for a lubricating pump, in particular a lubricating pump for a wind power plant, with a supply chamber which can be repeatedly filled with lubricant and which is connected via a discharge opening to the environment of the lubricant container, and with a supply device. comprising a follower piston adjacent to the supply chamber and disposed slidably in the lubricant container in and against an exhaust direction, and comprising a spring member by means of which an exhaust force acting on the follower piston in the direction of ejection can be produced.

The invention further relates to a lubrication system, in particular a lubrication system for a wind power plant, with a lubrication pump and with a lubricant container of the above-mentioned type, which is connected via a discharge port to an intake port in the lubrication pump.

Lubrication systems with a lubrication pump and a lubricant tank used in wind turbines are known from the state of the art. DE 200 21 026 U1 20 discloses a lubrication system in which a lubricant container is provided with a gravity-influenced grease stamp. The grease plunger leads the grease out of the lubricant container to the suction side of the pump and prevents the lubrication pump from sucking air.

25 In the case of wind turbines, lubrication systems are placed, among other things, in the rotor of the wind turbine. Such lubricant systems are rotated about the rotor axis so that the grease delivery to a gravity-actuated piston, as shown in DE 200 21 026 U1, does not ensure the reliability of the lubrication system.

In practice, it is normal to actuate the follower plunger with a spring force to ensure the supply to the follower plunger and the lubricating grease or lubrication oil independently of the lubricator orientation relative to the gravity direction.

DE 20 2004 009 387 U1 discloses a lubricant container with a 5 grease stamp which is actuated by pressure by a spring device.

However, in the case of lubricant containers with spring-pressure actuated pistons, the maintenance and filling of the lubrication system is difficult especially in narrow space conditions. Thus, the lubricant of the system in DE 20 10 2004 009 387 U1 must be filled into the supply chamber under pressure to displace the grease tracking plunger against the spring force. Also in maintenance work, ie when the lubrication system is disassembled and reassembled, a spring pressure-affected piston is problematic.

It is an object of the invention to provide a lubricant container and a lubrication system which in a cheap and constructionally simple way facilitates maintenance, filling and replacement and ensures a high level of reliability.

The initially mentioned lubricant reservoir and the initially mentioned lubricant system fulfill this purpose with a holding device which can be transferred to a locking position and in the locking position is in engagement with the follower piston and holds it in the locking position against the exhaust force.

The disadvantage of an exhaust force acting on the piston from the spring element during maintenance or the replacement of an empty with a filled container is eliminated in a constructionally simple and inexpensive manner by a holding device. The holding device fixes the feed device in a locking position against the exhaust force exerted by the spring element in the feed device 30. In this way, it is avoided that lubricant is pressed out under pressure due to the force acting on the piston, when the lubricant container or lubricant system's otherwise closed system is opened for maintenance or filling.

This is particularly advantageous in the case where the lubrication system is difficult to access, as is the case, for example, in wind turbines.

5

The present invention may be further developed by means of various, in each case, advantageous embodiments. In the following, the individual designs and the associated advantages are briefly mentioned.

In a first embodiment, the lubricant container of the invention may be provided with a container cover whose center axis is disposed substantially perpendicular to the ejection direction and a container jacket extending substantially coaxially relative to the ejection direction.

15 In order to divert the exhaust force to the container and to prevent the spring force from squeezing out lubricant, the holding device can be arranged both in the sheath area and on the container cover.

If the retaining device is arranged in the sheath region, it can in the locking position 20 support the feeder perpendicular to the ejection direction or engage the feeder perpendicular to the ejection direction or the container center axis. For example, it is possible to provide a bolt, stop or clamp as a holding device on the container sheath that is movable radially with respect to the container shaft. Sections in the feed device comprise the clamp, bolt seat or counterstop and engage the locking position with the holding device used so that the holding device supports the feed device against the exhaust force and dissipates the exhaust force to the container.

In another advantageous embodiment, the retaining device in the locking position may support the follower piston or spring member or engage the follower piston or spring member to hold the delivery device in the locking position against the exhaust force.

In the first case, the feed device is locked by holding the locking device in the locking position to prevent the displacement of the follower piston in the ejection direction, even though the spring element affects the follower piston with the ejection force in the direction of ejection. Advantageous in this embodiment is that the follower piston does not affect the lubricant with pressure at all, nor gravity.

10 The follower piston must delimit the supply chamber in a fluid-tight manner so that at the interface between follower piston and supply chamber neither air can flow into the supply chamber filled with lubricant nor can lubricant flow out of the supply chamber. If the retaining device engages in the follower piston, this can sometimes cause sealing problems.

In order to avoid sealing problems, the holding device in the locking position cannot support the follower plunger, but the spring element such that, with the aid of the spring element, no exhaust force acts in the direction of ejection on the follower plunger.

In order to ensure that no exhaust force acts on the follower piston, the locking device in the locking position must be in engagement with the supply device at the point where the exhaust force is transferred from the spring element to the follower piston. To achieve this, in another embodiment, the supply device may comprise a coupling element with which the exhaust force can be transferred from the spring element to the follower piston, the holding device engaging the coupling element in the locking position. The use of a coupling element is structurally simple and provides good reliability. The elements essential for the lubricant supply in the container in the supply device, the follower plunger and the spring element shall not be modified. This task takes over the interacting coupling element with the holding device in the locking position. In particular, the coupling element may be formed as a coupling plate or disc.

5 In order to produce a counter force against the spring force, the holding device in the locking position can support the supply device parallel to the center axis. This is achieved in a simple manner, the holding device being arranged on or in the container cover. As holding elements, for example, screws provided on or in the container cover may extend substantially parallel to the ejection direction and are screwed together with a feed device in the locking position.

Furthermore, the holding device can have several holding means which, preferably rotationally symmetrical, are arranged about the center axis. Thereby, the feed device is held in the locking position against the exhaust force, the exhaust force to be compensated is uniformly discharged to the lubricant container, and load peaks are avoided.

To ensure a secure seat of the holding device in the locking position of the feeding device, the feeding device may be formed with at least one engagement groove in which the holding device engages in the locking position. Preferably, the holding device and / or the at least one engaging groove in the feeder may comprise fasteners with which the holding device can be fixed formally in the at least one engaging groove. Form-locking means in the locking position constitute a fixed, again removable connection between the supply device and the holding device.

For example, the coupling plate may have rotationally symmetrical threads distributed about the center axis, in which screws which in the locking position pass through the container cover or container sheath can be screwed in as holding means in the holding device and finally connected to the coupling plate.

DK 177640 B1 6

As spring elements, cone springs are preferably used as these can be compactly compacted. Admittedly, cone springs require a lateral spring seat to prevent a spring deflection. According to an advantageous embodiment, the follower piston and / or the coupling element may have protruding 5 spring ledges which in each case enclose an engagement groove and which support the spring element radially with respect to the direction of ejection.

A particularly advantageous embodiment of the lubricant container operates by designing it as a replacement container which can be filled separately from the lubrication pump. Such exchange containers are known exclusively for lubrication containers with gravity-actuated pistons, for example from DE 200 21 026 U1. In order to provide a replacement container with spring-pressurized feed device, the lubricant container in the region of the discharge opening may be provided with a fastener by means of which the lubricant container can be repeatedly removably connected to the lubrication pump so that the discharge opening in the lubricant socket port and .

In order to facilitate the mounting of the lubricant replacement container on the lubrication pump, another embodiment may operate by holding the locking device in the locking position at a maximum filling end position where the spring element is compressed as much as possible. This has the advantage that the replacement container can be filled remotely from the lubrication pump. When filling, the follower plunger in the feed device is pressed up against the exhaust direction and the spring element is tightened. When the filling process is complete and the maximum amount of lubricant is filled in the supply chamber, the holding device is transferred to the locking position and the supply device is fixed with the holding device. Now, the filled replacement container can be connected to the lubrication pump without the delivery device being actuated with exhaust force. Only after the container is connected to the pump 17 is the release device detached from the locking position so that the exhaust force can act on the follower piston.

The holding device may be provided with an alarm encoder which furthermore shows the unoccupied locking position and thus the clarity of the operation of the lubricant container. In simple terms, the alarm device may be part of the holding device, the holding means itself serving as alarm means or having alarm means. The alarm means cannot be seen from the outside in the locking position and are provided with visible lubricant container or ready-to-use lubricant 10 visible from the outside and correspondingly movable.

In the following, the present invention is explained by way of example with reference to the accompanying drawings. Here shows: 15 FIG. 1 is a schematic sectional view of a first embodiment of a lubrication system with a lubricant container according to the invention and a lubrication pump; FIG. 2 is a sectional view taken along the line II-II in FIG. 1; and FIG. 3 is a schematic sectional view of another embodiment of the lubricant container according to the invention.

FIG. 1 and 2 show a lubrication system 1 comprising a lubrication pump 2 and a lubricant container 3. The pump 2 is arranged in a housing 4 and comprises a pump element 5. The piston pump element 5 (shown only in Fig. 1) is inserted into the housing 4. The housing has a gear motor 6 which drives an eccentric via a motor shaft 12. The eccentric 7 again drives a thrust rod 8 such that the thrust rod 8 in the pump element 5 is moved back and forth, and at its forward stroke, lubricant 9 extends with pressure through a lubricating port 10. The lubricating port 10 in the embodiment of FIG. 1, for transport purposes DK 177640 B1 8 is sealed with a closure element 11 which is removed in operation.

The pump may also have a plurality of pump elements 5 or a pump element with multiple rods 8 driven by an eccentric.

5 On the motor shaft 12 of the electric motor 6, a propeller element 13 is arranged in an intake port 14 in the housing 4.

The rotation of the motor shaft 12 thus firstly causes the pump thrust rod 108 to move back and forth. Second, the propeller element 13 pivots into the suction port 14 of the housing 4 and produces a suction through the suction port 14 of the pump element 5 into the housing 4.

The suction port 14 is provided with a ring flange 15 which constitutes the seat 15 and the attachment point of the lubricant container 3.

In the embodiment of FIG. 1, the ring flange 15 is arranged on the housing end 16 which constitutes the suction port 14. The ring flange has a collar-shaped skirt 17 extending around the outside edge, provided with a bayonet closure 18 which removably engages the housing end, or alternatively a screw thread.

The lubricant container 3 comprises a container sheath 19, a container cover 20 constituting the upper part of the container 3, and an emptying opening 25 21. The container sheath 19 is cylindrical with a substantially permanent internal diameter 22. The cover 20 is screwed onto the sheath 19 and closes one end of the container sheath 19. The other end of the container sheath 19 forms the discharge opening 21. The outer wall of the container sheath is provided at its end with an external thread 23, via which, among other things,

The container can be screwed together with the ring flange 15 in the housing 4 in a fluid-tight manner.

DK 177640 B1 9

The container cover 19, the container cover 19 and the ring flange 15 may in an alternative configuration be connected to each other by means of tensioning anchors not shown.

The lubricant container 3 is designed as a replacement container and is provided with the bayonet closure 18, which is removably mounted on the housing end 16 of the lubricating pump 2 by the ring flange 15 and the housing end 16 such that the discharge opening 21 in the container 3 is connected in a fluid-tight manner with the intake port 14 in the pump housing 4. form-fitting connection is removable so that the container 3 can be removed from the housing 4 and filled remotely from the lubrication pump. Via an axial passage 23 through the end of the housing 16 and the skirt 17, the bayonet closure 18 is secured against unintentional twisting.

The design as a replacement container 3 is particularly advantageous for lubrication system 1 used in wind turbines, since the lubricant container can be brought to the lubrication system 1 already filled and replaced there with an emptied lubricant container 3. It is therefore no longer necessary to bring a filling system to the lubrication system. filling the lubricant container 3 with lubricant 9 in the condition mounted on the lubrication pump 2, as this is required by the lubrication system in DE 20 2004 009 387 U1.

The following describes the lubricant container 3 according to the invention. The lubricant container comprises a supply device 24, a level sensor 25 and a holding device 26.

25

The feed device 24 comprises a follower piston 27 which is slidably disposed in the lubricant container in and against an exhaust direction 28.

The follower plunger 27 is arranged in the container sheath 19 to seal the complete internal cross-section 22 of the sheath 19 and divides the container 3 into a supply chamber 29 and a spring chamber 30. The supply chamber 29 DK extends from the discharge opening 21 to a first coupling plate 31 in the follower piston 27 on the lubricant side and is laterally defined by the container sheath 19. The supply chamber 29 is completely filled with a lubricant 9, for example a grease or a lubricating oil. In maximum filled condition shown in FIG. 1, the distance between the coupling plate 31 on the lubricant side and the discharge opening 21 is maximum in the exhaust direction 28, and the largest possible amount of lubricant 9 is laid out in the supply chamber 29. At the same time, the spring chamber 30 is minimal and the spring element 32 located in the spring chamber is maximally compressed.

10

With each lubrication process in the lubrication pump 2, the lubricant container is emptied successively, the follower piston 27 moving in the ejection direction 28 in the direction of the emptying opening 21. Thus, lubricant 9 is conveyed through the emptying opening 21 via the suction port 14 in the housing 4 to the pump element 5 by means of the supply element 24 13 and pressed out of the lubricating port 10 of the thrust bar 8. The follower piston 27 empties supply chamber 29 almost completely and finally arrives in an emptied end position (not shown). In the emptied end position, the coupling plate 31 on the lubricant side and the emptying opening 21 almost collapses, the lubricant 9 is pressed out and the lubricant container 3 completely emptied.

In order to move the follower plunger 27 of the supply device 24 out of the maximum filling position to the emptied end position, thereby pressing the lubricant 9 out of the supply chamber 29 so that neither lubricant 9 from the supply chamber 29 enters the spring chamber 30 nor air from the spring chamber 30 into the supply chamber 30. 29, the following measures are necessary.

First, the follower plunger 27 needs a guide directing the exhaust wall 30 in the exhaust direction 28. In addition, seals on both sides are necessary that seal supply chamber 29 and spring chamber 30 in fluid manner. Finally, the supply device 24 needs a spring element 32 by means of which an exhaust force 33 (indicated by arrows) acting on the follower piston 27 in the direction of ejection 28 can be produced. First, the control of the follower plunger 27 is discussed in more detail.

The tracking piston 27 is controlled by the contact rod 34 in the level sensor 25, two cup sleeves 39 and the container sheath 19. The contact rod 34 is arranged internally in the lubricant container 3 axially along the middle axis of the container sheath 19. The level sensor 25 has a detector 10 36 arranged on the container beyond the contact rod 34 partly outside, partly inside the lubricant container 3,

A sensor element 37 for scanning the axial position of the follower piston 27 is disposed in the follower piston 27, radially enclosing the contact rod 34 in the level sensor 25.

The follower piston 27 comprises a central guide bore 38 through which the contact rod 34 extends and which, in interaction with the contact rod 34, the cup sleeves 39 and the container sheath 19, provides the control of the follower piston 27.

20 On the outer circumferential edge of the follower plunger 27, two cup sleeves 39 are secured which secure the seal between the follower plunger 27 and the container inner wall 19 at the displacement of the follower plunger 27 in and toward the ejection direction 28 and seal the grease supply chamber 29 against the spring chamber 25 30.

At the control point between guide opening 38 and contact rod 34, two sealing groove rings 40 are arranged in the follower piston 27, so that the assembly point between contact rod 34 and guide opening 38 is also sealed.

The follower piston 27 has a body 41 which is disc-shaped and is disposed between the first clutch plate 31 on the lubricant side and a second clutch plate 42 on the spring side. The stack consisting of coupling plate 42 on the spring side, body 41 and coupling plate 31 on the lubricant side is held together as a stack of four rotationally symmetrical 5 fasteners distributed about the center axis 35, in fig. 1 a screw 43 with a corresponding nut 44.

The body 41 is provided with a plurality of annular grooves in which the cup sleeves 39, groove rings 40 and the sensor element 37 are folded in, and which are tightened in a force and form-closing manner by tightening the screw connection 43, 44 between the body 41 and the coupling plates 10.

In the spring chamber 30, the spring element 32 is arranged compressed so that the spring element 32 affects the follower piston 27 with the exhaust force 33.

15

The spring element 32 extends from the container cover 20 to the coupling plate 42 in the follower piston on the spring side and preferably comprises at least two actuated conical springs 45 and 46 which are connected via a power transmission sleeve 47. In short containers 3, one can also be used exclusively. conical spring.

The first cone spring, with its larger diameter, lies in a spring seat 48 in the container cover 20. The spring seat 48 is a circular recess on the inside of the cover 20 and defines the cone spring in both axial and radial direction with respect to the center axis about which the spring element 32 is arranged co-planar.

The end of the first smaller diameter cone spring 45 abuts the power transmission sleeve 47. The power transmission sleeve is essentially formed by a cylindrical body 47 which encloses the contact rod 34 and is displaceable along the contact rod 34 in and toward the exhaust direction 28. On a in DK 177640 B1 13 instead, the power transmission sleeve 47 has a spring ledge 49 which constitutes a frame with a larger outside diameter than the remaining body of the power transmission sleeve 47. The first cone spring 45 rests radially on the corpus of the PTO shaft 47 and axially on the spring ledge 49.

5

The second cone spring 46 is arranged with respect to the internal cross-section in relation to the first cone spring. The second cone spring also abuts against the small diameter end of the PTO shaft 47. Again, the body of the sleeve 47 defines the cone spring seat radially relative to the center axis 35, and the side facing the follower piston 27 defines the second cone spring 46 axially with respect to the center axis.

The advantage of cone springs 45, 46 is that they can be compressed more compactly than screw springs. The advantages of a spring element 32 with two cone springs 45, 46 are that, as described in DE 20 2004 009 387 U1, a stepwise increase of the spring travel is obtained without simultaneously noticeable increase in the exhaust force exerted on the piston in maximum compressed state and without drastic deterioration. of the exhaust power in near-20 excited state.

The end of the second large cone spring 46 rests in the one shown in FIG. 1 is not immediately shown on the coupling plate 42 in the follower stem 27 on the spring side. Between clutch plate 42 on the spring side and cone spring 46 46 may be connected a pressure plate 50 which is also displaceable on the contact rod in and against the exhaust direction 28.

The pressure plate 50 has four kidney-shaped screw head openings 60 through which the heads of the fastening screws 43 of the follower piston 27 protrude. In this way, the coupling plate rests substantially with its entire surface and plane on the piston plate 42 on the spring side.

DK 177640 B1 14

The pressure plate 50 serves as a coupling element by means of which the exhaust force 33 is transferred from the spring element 32 to the follower piston 27. This has the advantage that the exhaust force 33 is transferred to the follower piston 27 over a large surface. Further, in the illustrated embodiment, the pressure plate 50 interacts with the holding device 26 in the lubricant container 3.

The holding device 26 can be transferred to a locking position shown in FIG. 1. In the locking position, the holding device 26 is in engagement with the supply device 24 or one of the components - spring element 32, pressure plate 50 10 or follower piston 27 - in the supply device 24, in the locking position it holds against the exhaust force 33 and prevents the exhaust force 33 from being transferred to the follower piston 27 50th

In principle, there are two options for holding the delivery device 24 or 15 more accurately the pressure plate 50 in the locking position against the exhaust force 33 by means of the holding device 26. One possibility is to arrange the holding device in or on the container sheath 19. Starting from the container sheath 19, the holding device 26 can extend obliquely. preferably perpendicular to the exhaust direction 28, support the supply device 24 and consequently transfer the exhaust force 33 radially to the center axis 35 from the pressure plate 50 or the holding device 26 to the container sheath 19.

In the embodiment of FIG. 1, the holding device 26 is arranged in the container cover 20 which forms the upper container end. The holding device 25 comprises four locking screws 51 as holding means. The locking screws 51 are, as best seen in FIG. 2, rotationally symmetrically arranged about the center axis 35, the screw heads 52 being outside the lubricant container 3.

The locking screws 51 provided with an external thread extend through the container cover 20 into the spring chamber 30 and are arranged substantially coaxially with respect to the center axis. Since the lubricant container 3 according to the invention must always be reliable regardless of its position with respect to the direction of gravity, for example in the rotor of a wind turbine, it must be ensured that the locking screws 51 are always fixed in coaxial position with respect to the center axis.

5

This can be achieved with a force fixation by means of a fixing spring 53 extending around the body of the locking screw 51. The fixing spring 53 is clamped compressed between the container cover 20 and a nut 54.

The nut 54 is screwed onto the screw 51.

10

The holding device 26 of FIG. 1, in the shown locking position, supports the supply device 24 in parallel with the center axis 35 and exerts a counter force directed against the exhaust force 33 which holds the supply device 24 in the locking position.

15!

This embodiment is advantageous in that the holding device 26 holds the supply device 24 coaxially in relation to the exhaust direction 28 or against the exhaust force 33. In this way, it is ensured that the holding device 26 or its holding means 51 is only subjected to tension.

On the other hand, if the holding device 26 is arranged in the container sheath 19, there is a bending load in addition to the tensile load. This is avoided by the one shown in FIG. 1.

The holding or ridge screw 51 engages the pressure plate 50 so that the holding means 51 and pressure plate 50 are connected in a molded manner. To this end, the pressure in the plate 50 is arranged with rotation symmetrically about the center axis 35, which engages the holding thread 55. The holding threads 55 in the pressure plate 50 are flush in the direction of ejection 28 with the locking screws 51 in the holding device 26.

30 In this way, the holding device 26 can be transferred in a particularly simple manner to the locking position, by tightening the locking screws 51 and thus screwing them together with the holding threads 55 in the pressure plate. In the locking position, then the locking screws 51 are in form-fitting engagement with the retaining threads 55 of the pressure plate 50 of the supply device 24.

5

The feature of the retaining threads 55 at the one shown in FIG. 1, the retaining threads 55 are also radial spring seats for the second cone spring 46. To this end, cap nuts 56 are connected to the pressure plate 50 such that the nuts protrude from the pressure plate 50 in the direction of the container cover 10 and form a lateral deposit for cone spring 46.

The exemplary embodiment of FIG. 1 and 2, it is simply possible to hold the supply device 24 against the exhaust force 33 by means of a holding device.

15

An emptied container 3 can be removed from the pump 2 by releasing the fastening means 23 and a filled replacement container can be applied in a simple manner, namely without the spring effect of the follower piston causing problems.

20 When filling the lubricating container 3, which can be done independently of the pump 2, lubricant 9 is pressurized through the discharge opening 21 into the supply chamber 29. The displacement piston 27 is displaced towards the exhaust direction 28 and against the spring force 33 in the direction of the cover 20. When If the plunger is the maximum filling position, the spring element 32 is maximally compressed. In this position, the screws 51 constituting the holding means in the holding device 26 rest on the cap nuts 56, with the cap nuts 56 displacing the locking screws 51 towards the ejection direction and lifting their screw heads from the cover 20.

j 30 This is a visible sign that the filling process is complete. Now the holding device is transferred to the locking position, screws 51 being screwed into the cap nuts 56. In locked and filled condition, the replacement container 3 can be mounted on the pump in a simple manner.

In FIG. 3, another embodiment of the lubricant container 3 according to the invention is shown in a sectional view. In the following, the reference characters of the first embodiment of FIG. 3, in so far as the elements so designated correspond in function and / or construction. For the sake of brevity, only the differences in relation to the first embodiment are mentioned.

10

In the embodiment of FIG. 3, the holding device 26 is further provided with an alarm sensor 60, which signals outside the lubricant container 3 that the holding device is not in the locking position but is ready for operation. This is achieved by the alarm sensor device 60, depending on the locking position, being preferably carried out so that it can be transmitted to an outside visible alarm state. For this, movable or otherwise extensible alarm means 61 are provided so that they can be viewed from the outside in the ready state, the alarm state, and cannot or can only be seen from the outside in the locking position. Of course, the alarm mode can also be entered in the lock position. j 20

Preferably, as the alarm means 61 in the alarm sensor device 60, the holding means itself serves.

For this, at least one of the locking screws 51 on its side facing away from the lubricant volume 25 29 between the screw head 52 and the container cover 20 is provided with an alarm spring 62 which preferably acts against the fixing spring 53.

If the holding device 26 is not in the locking position where it holds the piston 27 against the spring force 33, at least one screw head and a part 30 of the locking screws 51 are lifted from the container cover 20 by means of the alarm spring 62.

The force exerted by the alarm spring 62 is greater in the locking position than the force exerted in the locking position by the fixing spring 53 in DK 177640 B1 18.

With this design, a user can immediately see from the outside whether the locking position was again lifted according to the regulations after re-inserting a filled lubricant container and the locking screws 51 were detached from the pressure plate 51. The screw head 52 on the smallest one locking screw 51 or alternatively one with the least Accordingly, one locking screw 51 movement transmitting connected portion serves as an alarm means.

Claims (15)

A lubricant container (3) for a lubricating pump (2), in particular a lubricating pump for a wind power plant, with a supply chamber (29) which can be repeatedly filled 5 times with lubricant (9) and which is connected via a discharge opening (21) with the environment of the lubricant container (3), and with a supply device (24) comprising a follower piston (27) adjacent to the supply chamber (29) and arranged slidably in the lubricant container (3) in and against an exhaust direction (28), 10. and comprises a spring element (32) by means of which an exhaust force (33) acting in accordance with the piston (27) in the direction of ejection (33) can be produced, characterized by a holding device (26) which can be transferred to a locking position and in the locking position. engage the supply device (24) and hold it in the locking position against the ejection force (33). Lubricant container (3) according to claim 1, characterized in that the lubricant container comprises a container cover (20) arranged substantially perpendicular to the direction of exhaust (28) and a container cap (19) whose center axis (35) extending substantially parallel to the ejection direction (28), the holding device (26) being arranged on the container sheath (19). Lubricant container (3) according to claim 1 or 2, characterized in that the lubricant container comprises a container cover (20) arranged substantially perpendicular to the direction of exhaust (28) and a container sheath (19) whose center axis (35) ) extends substantially parallel to the ejection direction (28), the holding device (26) being arranged on the container cover (20). 30 4. Lubricant container (3) according to one of the preceding claims, characterized in that the holding device (26) engages the follower piston (27) in the locking position. Lubricant container (3) according to one of the preceding claims, characterized in that the holding device (26) engages the spring element (32) in the locking position. Lubricant container (3) according to one of the preceding claims, characterized in that the supply device (24) comprises a coupling element 10 (50) with which the exhaust force (33) can be transferred from the spring element (32) to the follower piston (27), the holding device (26) engaging the coupling member (50) in the locking position. Lubricant container (3) according to one of the preceding claims, characterized in that the delivery device (24) is formed with at least one engagement groove (55) in which the holding device (26) engages the locking device. Lubricant container (3) according to claim 7, characterized in that the holding device (26) and / or the at least one engagement groove (55) in the supply device (24) constitute fastening means (51, 55) with which the holding device (26) ) can be fixed form-fitting in the at least one engagement groove (55). Lubricant container (3) according to claim 7 or 8, characterized in that the follower piston (27) and / or the coupling element (50) have a lifting way in projecting spring ledges (56) enclosing in each case an engagement groove (55), and which support the spring element (32) radially relative to the ejection direction (28). 30 A lubricant container (3) according to one of the preceding claims, characterized in that the holding device (26) comprises a plurality of holding means (51) arranged, preferably symmetrically, distributed about the center axis (35). Lubricant container (3) according to one of the preceding claims, characterized in that the holding device (26) in the locking position holds the supply device (24) in a maximum filling position, where the spring element (32) is compressed as much as possible. Lubricant container (3) according to one of the preceding claims, characterized in that the lubricant container (3) in the area of the discharge opening (21) is provided with a fastening means (23), by means of which the lubricant container (3) is repeatedly used. can be removably connected to the lubricating pump (2) so that the discharge opening (21) in the lubricant container (3) and an intake port (14) in the lubricating pump (2) are connected in fluid-tight manner. Lubricant container (3) according to one of the preceding claims, characterized in that an alarm sensor device (60) is provided with at least one alarm means (61) which is designed so that, depending on the lock position, it can be transferred to an alarm condition, the alarm means being arranged usable from the outside. A lubricating system (1), in particular a lubricating system (1) for a wind power plant, comprising a lubricating pump (2) and a lubricant container (3) with a supply chamber (29) which can be repeatedly filled with lubricant and which via a discharge port (21) is connected to an intake port (14) in the lubrication pump (2), and to a supply device (24) comprising a follower piston (27) adjacent to the supply chamber (29) and slidably disposed in the lubricant container 30 ( 3) in and against an exhaust direction (28), and comprises a spring element (32), by means of which an exhaust force (33) acting on the follower piston (27) in the exhaust direction (28) can be produced, characterized in in that the lubricant container (3) comprises a holding device (26) which can be transferred to a locking position and in the locking position is in engagement with the supply device (24) and holding this 5 in the locking position against the exhaust force (33). Lubrication system (1) according to claim 13, characterized in that the lubricant container (3) is designed as a removable container (1) removable from the lubricating pump (2) with a fastening means (23) for connecting the discharge opening (21) with the suction port (14).