DE202016004426U1 - Assembly unit with drive unit and mass flow control or valve unit and transmission unit for transmitting torques and rotations from a drive unit to a mass flow adjustment of a mass flow control or valve unit - Google Patents

Abstract

Assembly unit (100) with at least one drive unit, in particular an actuator unit (3), and at least one mass flow control or valve unit (1), wherein the Massenstromregel- or valve unit (1) at least one rotatable element (19) of a mass flow adjustment device (5) for regulating a mass flow and the drive unit (3) comprises at least one drive or an actuator for driving the rotatable element (19) and at least one transmission unit (2) is provided, wherein the transmission unit (2) at a first end (120) with the drive unit ( 3) and at a second end (121) connectable or connected to the at least one rotatable element (19) of the mass flow adjustment device (5) of the mass flow control or valve unit (1) and for transmitting torque and rotation from the drive unit (3) to the Mass flow control or valve unit (1) is formed, characterized in that the transmission unit (2) at least two i comprises parts (21, 22, 24, 25) which can be connected or connected to one another via at least one gimbal connection section (4) in order to compensate for an axial and / or radial offset between the connection point of the transmission unit (2) and the drive unit (3). and the junction of the transfer unit (2) with the mass flow control or valve unit (1).

Description

The invention relates to an assembly unit with at least one drive unit and at least one Massenstromregel- or valve unit, wherein the Massenstromregel- or valve unit comprises at least one rotatable element of a Massenstromverstelleinrichtung for regulating a mass flow and the drive unit comprises at least one drive or an actuator for driving the rotatable member and at least a transmission unit is provided, wherein the transmission unit at a first end to the drive unit and at a second end with the at least one rotatable element of the mass flow adjustment of Massstromregel- or valve unit connectable or connected and for transmitting torque and rotation of the drive unit to the Massenstromregel- or Valve unit is formed. The invention further relates to such a transmission unit for transmitting torque and rotation of a drive unit to a mass flow adjustment of a mass flow control or valve unit.

Drive units for driving valve units or mass flow control units for controlling mass flows are known in the art. Mass flow control units are known in the form of valves in the prior art. Especially in a coolant system for vehicles with hybrid or pure electric drive, the use of various sensors and valves for controlling or controlling a mass flow of a coolant to the individual components to be tempered is known. The various sensors and valves are arranged at different locations in the coolant system to regulate the mass flow in the coolant system for controlling the temperature of a battery and other components. To adjust the valves, drive units are provided which adjust the particular desired valve position, in particular via a motorized actuator. The arrangement of various sensors and valves within such a vehicle at different locations in the coolant system in its coolant lines is often very complex.

From the DE 10 2012 022 213 A1 a valve device is known, comprising a valve, in particular disk valve, which has a first housing with a plurality of terminals for a liquid and / or gaseous medium. Furthermore, the valve device comprises a drive unit which has a second housing with a drive device arranged therein, the housings being arranged at least substantially at a distance from one another. The valve has a control shaft and the drive device has a drive shaft operatively connected to the drive device and operatively connected or operatively connected to the control shaft by a coupling device. The coupling device is arranged between the first and the second housing. A preassembly assembly consists of a valve disc, an intermediate element, a spring element and the control shaft. The control shaft protrudes with a free end through a breakthrough of the valve disc to engage in a bearing receptacle. The outer diameter of the free end and the inner diameter of the bearing receptacle are chosen so that together they form a radial sliding bearing for the control shaft. The intermediate element has on its side facing the valve disc two support feet which engage in the recesses of the valve disc. Between the control shaft and the valve disc a form-locking acting by asymmetric shaping rotation is provided. The coil spring is held axially between the laterally projecting support legs of the intermediate member and a plurality of radially projecting support projections of the control shaft. Supporting projections are arranged distributed uniformly over the circumference of the control shaft. The support projections form an axial stop for the coil spring. A second axial stop for this form the support legs.

In the valve device according to this prior art, the provision of the coil spring is required for the function. In addition, a surface contact is provided, wherein no tilting and no offset between the Anlenkungsenden the control shaft can be compensated. Overall, the pre-assembly, comprising the valve disc, the intermediate element, the spring element and the control shaft, designed very complex.

The present invention is therefore an object of the invention to provide an assembly unit with at least one drive unit and at least one Massenstromregel- or valve unit and a transmission unit for transmitting torque and rotation of a drive unit to a mass flow adjustment of a mass flow control or valve unit, the more compact in the transmission unit is constructed as the valve device according to the prior art and in which a backlash-free or hysteresis-free transmission of torque and rotation of the drive unit to the mass flow control or valve unit is made possible.

The object is achieved for a module unit according to the preamble of claim 1, characterized in that the transmission unit comprises at least two parts which are connected or connected to each other via at least one gimbal connection portion to compensate for an axial and / or radial offset between the junction of the transmission unit with the Drive unit and the junction of the transmission unit with the mass flow control or valve unit. For a transmission unit according to the preamble of claim 7, the object is achieved in that the transmission unit comprises at least two parts which are connectable or connected to each other via at least one gimbal connection portion, wherein at least the one part cam-like portions each having at least two opposing rounded outer surfaces and the at least one second part has contact surfaces, wherein the cam-like sections and the contact surfaces are intermeshable or intermeshing in line contact. Further developments of the invention are defined in the dependent claims.

As a result, an assembly unit having at least one drive unit and at least one mass flow control or valve unit and a transmission unit for transmitting rotation and torque from the drive unit to the mass flow control or valve unit is provided, wherein the transmission unit comprises at least one gimbal connection portion, via which a transmission of Torque and rotation of the drive unit to the mass flow control or valve unit clearance and hysteresis-free is possible due to the line contact of the surfaces in contact with each other of the parts of the transmission unit. The drive unit may be, for example, an actuator unit. It comprises at least one drive or at least one actuator. In contrast, for example, to the prior art of DE 10 2012 022 213 A1 For example, the provision of at least one gimbal connection section enables transmission of torques as well as rotation by merely providing two parts that are gimbaled together. By providing a gimbal connection portion in the transmission unit according to the invention, it is advantageously possible to compensate both an axial offset between the drive axle in the drive unit and the output shaft in the mass flow control or valve unit as well as an angular offset and an axial displacement, as a transfer of rotation and Torque is also possible in an angling and an axial displacement of the interlocking parts in providing a gimbal connection portion there.

In order to transmit a torque, it is according to the DE 10 2012 022 213 A1 required to provide the lateral support feet and support projections on the control shaft, as no torque transmission is possible via the centering in the region of the free end of the control shaft which engages in the bearing receptacle of the valve disc. According to the present invention, however, torque transmission is already possible via the gimbal connection section, so that no further elements or components have to be provided here. Accordingly, the transmission unit for transmitting torque and rotation from the drive unit to the mass flow control or valve unit in the assembly unit according to the invention is more compact than the arrangement according to the prior art DE 10 2012 022 213 A1 ,

Tolerance deviations in the radial and in the axial direction can be compensated with the transmission unit, as well as different angles on the drive side in the region of the drive unit and the output side in the region of the mass flow control or valve unit. Advantageously, the at least one second part has at least one profiled recess provided with the contact surfaces, engaging in the cam-like sections, or protruding pins provided with the contact surfaces and grooves arranged between them, into which the cam-like sections can be positioned or positioned in an engaging manner. Since no surface contact, as in the DE 10 2012 022 213 A1 but a line contact between the cam-like portions and the respective contact surfaces of profiled recess or projecting pin is provided, regardless of the position, a transmission of torque and rotation over the transmission unit can be ensured. The respective contour of the contact surfaces can be designed to be application-specific, wherein this is selected so that a line contact is provided to the cam-like portions in every possible position from the first part to the second part of the transmission unit in gimbal connection section. To ensure line contact of the rolling surfaces, the maximum diameter of the rounded outer surfaces of the cam-like portions is advantageously matched to the contact surface shape and dimensions or their shape and dimensions to the respective diameter of the rounded outer surfaces of the cam-like portions.

The at least one gimbal connection section advantageously has the contact surfaces in contact via a line contact, in particular at least one contact surface on the rotatable element or on an intermediate element of the mass flow control or valve unit which can be connected or connected thereto and / or at least one contact surface in the region of the drive unit. The transmission unit can thus be designed in particular in two parts or in three parts and accordingly a gimbal connection section between the first and second part of Transmission unit or be provided between the first and second and the second and third part of the transmission unit or be. If the transmission unit is advantageously designed in two parts, an angle compensation can take place via this. However, if the transmission unit is formed in three parts, can be provided on this both an angle compensation and an axial offset compensation and / or compensation for axial displacement between a rotation axis of the transmission unit in the drive unit and a rotation axis of the transmission unit in the mass flow control or valve unit. In both the two-part and the three-part design of the transmission unit torques between two rotatable units, namely the drive or actuator, in particular actuator, the drive unit and the rotatably mounted or storable element of the mass flow control or valve unit can be transmitted, wherein in the two-part Training the compensation of toleranced angle offset between the articulation point of the transmission unit in the drive unit and the articulation point of the transmission unit in the mass flow control or valve unit is possible. In a three-part design of the transmission unit both an axial offset and an angular offset or an axial displacement can be compensated by tolerance deviations in the region of the articulation point of the transmission unit in the drive unit and the articulation point of the transmission unit in the mass flow control or valve unit. The axial offset is compensated for by tilting the intermeshing three parts of the transfer unit in two directions, the axial displacement by moving the intermeshing parts of the transfer unit in the axial direction of the transfer unit, while the angular offset by rotational liberties in two axes at each of the ends of the two- or three-piece Transfer unit can be compensated.

The line contact between the cam-like sections and the contact surfaces can be provided by rounding at least one of the surfaces of the contact partners of the cam-like sections and the contact surfaces adjacent thereto, wherein in particular a cylindrical or spherical rounding is possible. Thus, the cam-like sections and also the contact surfaces bearing against them can be rounded or only one (r) of the two.

It proves to be particularly advantageous to provide four recesses or recesses or grooves for the engagement of four cam-like sections for enabling a torque transmission. By providing four recesses with a corresponding number of four cam-like sections which engage therein, a particularly good transmission of torque and rotation via the transmission unit is possible. Of course, in principle, for example, more or fewer than four recesses, recesses, grooves and, accordingly, more or less than four cam-like portions are provided for engaging in these, z. B. only three, if this application-specific proves to be advantageous.

The at least one part of the transmission unit may in particular be wave-shaped and cross-shaped in cross-section, wherein it has a central core portion and this surrounding, provided with the cam-like struts, wherein the struts extend parallel to the central core portion. The struts can each be provided at the end with the cam-like sections, thus four cross-shaped arranged around the core section struts with a total of eight end-mounted cam-like sections. In contrast, the central region of the struts in the longitudinal direction can be substantially straight, so that the cam-like sections are arranged only at the ends of the struts and protrude so far that they engage optimally in corresponding recesses, recesses, grooves or contact surfaces or on these can attack. The wave-like part can be advantageously provided as a middle of three parts of the transmission unit, so that at both ends of the shaft-like part in each case another part connects, one of which is connected to the drive unit and the other with the Massenstromregel- or valve unit , The wave-like part thus engages with its end-side cam-like sections in contact surfaces of the two other parts, which adjoin at both ends of these, a. In this case, at least one of the two ends acting on the shaft-like part parts may be provided with, for example, projecting pins and grooves formed therebetween, in which rest under line contact the cam-like portions of the wave-like part. It is also possible that, instead of projecting pins with grooves arranged therebetween, at least one profiled recess or recess with correspondingly shaped contact surfaces is provided, in which engage the cam-like portions of the shaft-like part.

The connectable to the drive unit or connected part of the transmission unit may advantageously have a cooperating with this shaft portion, the z. B. is connected to a transmission of the example designed as an actuator unit drive unit or the drive motor of the drive or actuator, such as an actuator to connect the drive side of the drive unit to the transmission unit over this. Advantageously, the shaft section has at least one flattened section for creating a defined zero position of the shaft section in the drive unit. It thus serves the correct positioning of the shaft section in the drive unit.

One of the parts of the transmission unit can be formed or arranged on the rotatably mountable or mounted element of the mass flow adjustment device of the mass flow control or valve unit. This is possible both in a two-part and in a three-part design of the transmission unit. Demensprechend in particular the at least one second provided with the at least one profiled recess or the projecting pin part of the transmission unit on a rotatably mounted or storable element of Massenstromverstelleinrichtung Massstromregel- or valve unit with respect to the surface plateaus exposed exposed to provide at least one through hole to create a Flow cross-section in the rotatably mounted or storable element of the mass flow adjustment. The rotatably mounted element of the mass flow adjustment device can thus be provided with a socket-like or plateau-like projection, which in turn is provided on its end face with the at least one profiled recess or recess or the projecting pin, with which provided with the cam-like portions of the transmission unit can interlock. The base-like or plateau-like projection on the rotatably mounted or storable element of the mass flow adjustment device advantageously also has through openings to centrally through a medium flowing through these openings from one side of the rotatably storable or stored element on the opposite other side also centrally or centrally to enable the element. In this center, the rotatably mountable or supported element is usually mounted in the mass flow control or valve unit, so that then around this storage around a flow of medium is made possible.

Also, the at least one provided with the cam-like portions part may be formed as part of the rotatably mounted or storable element of Massenstromverstelleinrichtung Massstromregel- or valve unit, the rotatably mounted or storable element has struts in its central region and the cam-like portions arranged on the struts or are trained. Accordingly, it is thus also possible to form the cam-like sections directly, in particular on the rotatably mounted or storable element of the mass flow adjustment device, namely in the center of this on arranged there struts, in particular radially from the possible bearing point of the rotatably mounted or storable element to the outside extend. At these cam-like sections of the struts, projecting pins with corresponding contact surfaces can intervene, for example, on the further part of the transfer unit, providing line contact between the contact surfaces on the projecting pins and the cam-like sections on the struts in the center of the mass flow adjustment device of the mass flow control device. or valve unit.

In order to provide centering, in particular, of the part of the transmission unit which can be connected or connected to the drive unit, at least one means for centering the parts of the transmission unit which can be connected or connected to one another by the at least one gimbal connection section can be provided. The means for centering can be formed in particular by the four struts of the wave-like part of the transmission unit. Likewise, for example, at least one sealing ring may be provided for centering on the at least one part of the transmission unit. Furthermore, at least one spherically formed surface can be provided on the end of the at least one part of the transmission unit, which cooperates with a recess or recess or a material ring in the at least one further part of the transmission unit to create a thrust bearing for tilting the one part relative to the at least one further part of the transmission unit. The at least one spherical surface serves as a thrust bearing or support surface to create a degree of freedom for the tilting of the z. B. wave-like part of the transmission unit relative to the cooperating with this further part of the transmission unit.

At least the at least one first part of the transfer unit provided with the cam-like sections can furthermore advantageously consist at least partially of a plastic material, in particular completely made of at least one plastic material, and / or in the area provided with the cam-like sections of at least one metal or at least one metal alloy and / or ceramic material. It can thus be provided an education of only one plastic material or a plurality of plastic materials, in particular the use of harder plastic material in the region of the cam-like portions. Furthermore, it is also possible to form only parts of the part of the transmission device made of plastic provided with the cam-like sections, in particular of one or more plastic materials, and of the region in which the cam-like sections are arranged, of a harder one Material, such as a metal or a metal alloy.

In a three-part design of the transmission unit thus advantageously has the average wave-like part of this one degree of freedom to the other two parts of the transmission unit, so that a tilting, thus an angular and Achsversatzausgleich and a compensation of an axial displacement is possible. In a two-part design, although no axial offset compensation is possible, however, an angle compensation by tilting, thus given between the first and second part of the transmission unit, a degree of freedom that allows this angle compensation. Thus, only a few parts, in particular two parts of the transmission unit for transmitting torque and rotation between the drive unit and mass flow control or valve unit, which can compensate for tolerances, are possible. Due to the structurally simple design of the parts of the transmission unit, these can be produced inexpensively. In particular, it is possible to remove the individual parts, in particular two or three parts of the transfer unit without undercuts and thus to make them suitable for conventional injection molding production. By providing a cross-shaped cross-shaped wave-like member, by providing the four struts extending around the central core portion, relief of the central core portion of the corrugated portion and increased stability in torque transmission can be provided. With the provision of spherical geometries at both ends of the central core portion of the wave-like part, in particular in the form of domes, it is possible to prevent planar contact and thus surface contact between the wave-like part of the transmission unit and the connecting contour intermeshing therewith. By providing such spherical geometries at the end of the first wave-like part of the transfer unit, it is also possible to exert pressure on these corrections of the position, since the height of the spherical geometries at the shaft-like part leaves the struts with the cam-like portions of the wave-like part free Thus, given movement space for tilting the wave-like part with respect to the connectable with this or connected, corresponding contact surfaces for line contact with the cam-like portions having part. When tilting the line contact of the contact surfaces is displaced, but remains a line contact or at least a point contact with respect to the spherical geometry.

For further explanation of the invention embodiments of this will be described in more detail below with reference to the drawings. These show in:

1 3 shows a longitudinal sectional view through a first embodiment of an assembly unit with a mass flow control or valve unit which is coupled to a drive unit via one end of a transmission unit according to the invention,

2a a detailed side view of the transmission unit according to 1 .

2 B a detailed side view of the axial offset and angle compensation position of the transmission unit according to 2a .

3 a side view of the complete transmission unit according to 1 in deflected axis offset position,

4 a perspective view of a wave-shaped part of the transmission unit according to 1 .

5 a longitudinal sectional view through the wave-shaped part according to 4 .

6a a side view of the wave-shaped part according to 4 .

6b a plan view of the wave-shaped part according to 4 .

7 a perspective view of a protruding pin providing part of a transfer unit according to the invention,

8th a side view of the transfer unit according to 2a . 2 B and 3 in a 45 ° rotated position,

9a 3 a perspective view of a profiled recess or recess-providing part of a transmission unit according to the invention,

9b a plan view of the protruding pin providing part of the transfer unit according to 9a .

10a a side view of a end provided with cam-like portions of a transmission unit according to the invention,

10b a detail side view of the end provided with cam-like portions providing part 10a in arrangement in the part provided with a profiled recess or recess according to 9a .

10c a perspective view of an angled position of the arrangement of the transmission unit according to 10b .

11a a perspective view of a rotatable element according to the invention a mass flow adjustment of a mass flow control or valve unit according to 1 with centrally disposed in the rotatably mountable member, provided with cam-like struts for cooperation with projecting pins of a second, engaging in a drive unit portion of the transfer unit according to the invention, and

11b an exploded perspective view of the arrangement of rotatably storable element and second part of the transmission unit according to 11a ,

1 shows a longitudinal sectional view of a mass flow control or valve unit 1 , This comprises in the embodiment variant shown here, a housing 10 , The two-piece housing 10 includes a first housing part 11 with three connection devices 12 . 13 . 14 for connecting three lines, in particular three coolant lines. In another embodiment, of course, more lines can be provided or connected. Accordingly, the housing part 11 also have more than three connection devices. The lines can be designed as hose lines and / or as pipes with correspondingly provided fastening devices in the form of z. As hose clamps, connectors, plug-in couplings, etc. A second housing part 15 is formed substantially cylindrical and on the first housing part 11 been added. Opposite to the first housing part 11 is on the second housing part 15 a lid part 16 for closing the housing at the end 10 been added. The lid part 16 is with a centrally located passage opening 17 provided by the one with a shaft section 20 provided part 21 a transmission unit 2 protrudes. The transmission unit 2 has a first end 120 and a second end 121 on. The shaft section 20 at the first end 120 of the transmission unit 2 is profiled on the outside and serves to connect to a drive device or an actuator, such as an actuator, a drive unit 3 , in the 1 only shown by dashed lines. The drive unit 3 and the mass flow control or valve unit 1 form after assembly a module unit 100 ,

About a drive, not shown, of the drive unit 3 in the form of an actuator, for. B. actuator, is at the shaft portion 20 of the drive-side part 21 the transmission unit 2 attacked. The transmission unit 2 includes except the drive-side part 21 one with this detachable via a gimbal connection section 4 connected wavy part 22 and a driven-side part 24 at the second end 121 that with a rotatably mounted element 19 connected or here is one piece. The housing part 15 includes a fixed aperture element 18 where both the aperture element 18 as well as the rotatably mounted element 19 Through openings 180 respectively. 190 exhibit. The fixed panel element 18 and the rotatably mounted element 19 are arranged adjacent to each other. The passage openings 180 . 190 can by turning the rotatably mounted element 19 be brought in coverage, partial coverage or no overlap. In particular continuous / proportional rotation of the drive-side part 21 the transmission unit 2 this movement is to the rotatably mounted element 19 passed to set a flow cross-section through the through holes 180 . 190 in the fixed panel element 18 and the rotatably mounted element 19 , This means that by attacking the shaft section 20 of the drive-side part 21 the transmission unit 2 a rotation of the rotatably mounted element 19 is possible. At coverage of the passage openings 180 . 190 is a flow of medium through them possible. Likewise, an at least partial or complete closing of the passage openings 180 in the fixed panel element 18 of the second housing part 15 possible if the areas of the rotatably mounted element 19 that without the passages 190 are provided, in coverage over the passage openings 180 of the fixed panel element 18 to be brought. The drive of the drive unit, not shown 3 or the actuator, can via an electrical connector 30 as he is in 1 is also indicated, are connected to a control unit, not shown, or an integrated control module, by the or a corresponding control signal to the actuator of the drive unit 3 is given. Such a control unit may be outside the mass flow control or valve unit 1 or the drive unit 3 be arranged or in or on either or both.

The flow path of the medium can be used to form a mixing function, for example, with a partial mass flow ṁ ₁ through the first connection device 12 into, through both openings 180 . 190 through into an inner chamber 150 in the interior of the second housing part 15 into and from there through the rotatably mounted element 190 centrally provided passage openings 191 through into the second connection device 13 be provided in it. This is indicated by corresponding arrows (with solid lines shown) in 1 indicated. Furthermore, a second mass flow ṁ ₂ through the third connection device 14 into the mass flow control or valve unit 1 or their first housing part 11 into, through the passage openings) 180 in the fixed panel element 18 , through the passage openings) 190 in the rotatably mounted element 19 through into the inner chamber 150 in the second housing part 15 into and from there through the passage opening (s) 191 in the center of the rotatably mounted element 19 also into the second connection device 13 pour into it. From the second connection device 13 accordingly flows out a total mass flow ṁ ₃ = ṁ _ges , resulting from the sum of the individual mass flows ṁ ₁ and ṁ ₂ . By appropriately changing the flow openings, which bring by complete or only partial overlap of the through holes 180 and 190 be formed in the inner chamber 150 in and out of this through the flow openings 191 through into the second connection device 13 into it, the temperature and the composition of the mass flow, that from the second connection device 13 flows out, influenced or regulated the mass flow. The part of mass flow control or valve unit 1 is therefore called Massenstromverstelleinrichtung 5 designated.

The mass flow control or valve unit 1 not only can be used to mix sub-mass flows into a total mass flow, but also to divide a total mass flow into sub-mass flows. When splitting, at least one mass flow in the sense of a proportional valve can be continuously adjusted at least in regions, for example in a range of 0% to 100%, in particular 30% to 70% of the mass flow. If a distribution of a total mass flow ṁ ₃ = ṁ _ges to sub-mass flows ṁ ₁ and ṁ ₂ , this is thus possible in the reverse direction to the mixing direction. This is in 1 indicated by the dashed arrows. The adjustment takes place by appropriate rotation of the rotatably mounted element 19 , For this purpose, the drive or actuator of the drive unit 3 or provided the actuator. This engages the shaft section 20 the transmission unit 2 at.

To an unwanted escape of medium, such as cooling water, from the successive housings of Massenstromregel- or valve unit 1 and the drive unit 3 To avoid, at least one seal is radially and axially in the transition region of the drive unit 3 and mass flow control or valve unit 1 arranged. Around the shaft section 20 of the drive-side part 21 the transmission unit 2 for transmitting the rotational movement initiated by the drive unit to the rotatably mounted element 19 to drive correctly, the shaft section becomes 20 stored in the drive unit advantageously centered or received. For centered storage z. B. serve a sealing ring. Due to shape and tolerance deviations, it may happen, however, that the receptacle for the shaft section 20 of the part 21 the transmission unit 2 not exactly aligned over a journal 192 for supporting the rotatably mounted element 19 lies. Although it is possible to narrow down the tolerances, this involves considerable manufacturing costs. If larger tolerances are allowed, it could in principle happen that no reliable drive of the rotatably mounted element 19 through the drive unit 3 more is possible. To solve the problem is the transmission unit 2 according to 1 formed in three parts, being between the three parts 21 . 22 . 24 the respective gimbal connection section 4 is provided.

By providing the gimbal connection sections 4 are both an axial and a radial compensation of tolerances and an axial and angular offset of the axis of rotation of the rotatably mounted element 19 and the rotation axis of the driven shaft portion 20 possible. This is especially the 2a and 2 B such as 3 in which the transfer unit 2 shown in detail. 2a shows an undeflected position of the transmission unit 2 while the 2 B and 3 a respective deflected position of the transmission unit 2 shows. Like that 2a . 2 B and 3 can be seen, includes the transmission unit 2 except the already mentioned drive-side part 21 that the wave section 20 for connection to the drive unit 3 or an actuator provided there, comprises the wave-like part 22 and with the rotatably mounted element 19 connected or one-piece part 24 , The wavy part 22 is in perspective view in 4 , in side view 6a , in the plan view in 6b and in longitudinal section along the line BB 6a in 5 shown. The wavy part 22 has in plan view a cross shape with a centrally located core portion 220 and radially projecting from this struts 221 . 222 . 223 . 224 , These struts are bone-shaped in plan view, each having an approximately uniformly narrow or wide formed central portion 225 and on these two-sided subsequent cam-like sections 226 . 227 on. Accordingly, the cam-like portions 226 . 227 the aspiration 221 to 224 each rounded outer surfaces 228 . 229 . 230 . 231 on.

As in particular the 4 . 5 and 6b can be seen, the central core section 220 of the wavy part 22 each end spherically trained surfaces 232 . 233 on. The spherically formed surfaces 232 . 233 are like 5 can be removed, each convex, so that they over the longitudinal extent of the adjacent struts 221 to 224 protrude. By providing the spherically shaped surfaces 232 . 233 at the two opposite ends of the core portion 220 of the wavy part 22 is a point contact between the respective formed surface 232 . 233 and each in contact with this surface of the drive-side part 21 or on the rotatable element 19 arranged part 24 possible. Because of this spherical elevation of the core section 220 can also be when applying pressure to the wavy part 22 be ensured in the longitudinal direction that the struts 221 to 224 free standing and thus the possibility is given to the wave-like part 22 opposite to the shaft section 20 provided part 21 and the third part 24 integral with the rotatably mounted element 19 is to tilt, as this particular in the 2 B and 3 is indicated to compensate for an angular offset or a misalignment.

The two parts 21 and 24 attached to the cam-like sections 226 . 227 the aspiration 221 to 224 of the wavy part 22 attack and are in operative connection with these, each have projecting pins 210 respectively. 240 on, like that 2a . 2 B respectively. 7 such as 8th can be seen. Between each two pins 210 respectively. 240 is a groove 214 respectively. 244 arranged. On the outer walls of the pins 210 respectively. 240 that the respective groove 214 respectively. 244 limit laterally, are contact surfaces 218 . 219 respectively. 248 . 249 provided with the respective rounded outer surfaces 228 . 229 . 230 . 231 the respective cam-like sections 226 respectively. 227 lie in line contact with each other and are in operative connection with each other. A line contact takes place 3 by way of example in the area of the lines L1 and L2. By providing line contact, there is rotational entrainment and torque transfer from the part 21 on the wavy part 22 and from this to the third part 24 possible. At the same time, however, is also a tilting of the three parts 21 . 22 . 24 possible against each other, as in the 2 B and 3 is indicated. This can not only, as in the 2 B and 3 indicated, the longitudinal extents of the parts 21 and 24 approximately parallel to each other, but also at an angle to each other, so not just the wave-like part 22 towards the third part 24 integral with the rotatably mounted element 19 is to be tilted at an angle α, but also with the shaft portion 20 that with the drive unit 3 is brought in relation to the wave-like part 22 by an angle β and also with respect to the rotatably mounted element 19 one-piece part 24 be arranged tilted. Furthermore, an axial compensation, ie a compensation of an axial displacement of the parts which are connected or brought together, is likewise possible 21 . 22 . 24 possible. All this is due to the gimbal meshing of the cam-like sections 226 . 227 and with pins and grooves or with the contact surfaces 218 . 219 respectively. 248 . 249 provided portions of the parts 21 and 24 possible, thus by the provision of gimbal connection sections 4 ,

It can thus position differences and tolerance deviations in the radial as well as in the axial direction by the provision of gimbal connection sections 4 in the region of the respective connection of the wave-like part 22 with the drive-side part 21 and the part disposed on the rotatably mounted member 24 be compensated. Angle and offset compensation as well as axial compensation are possible here. The offset is in 3 designated by a v _I. This is the offset between the central axis of rotation A _{1 of} the rotatably mounted element 19 and the rotation axis A _{2 of} the shaft portion 20 of the part 21 and accordingly the component of the drive unit 3 at the shaft section 20 of the drive-side part 21 the transmission unit 2 attacks. This offset between the two axes of rotation A ₁ and A ₂ can by tilting the wave-like part 22 opposite the parts 21 and 24 be compensated, as in the 2 B and 3 is indicated.

Like the same 2 B and 3 can be removed particularly well, are the contact surfaces 218 . 219 respectively. 248 . 249 the two parts 21 respectively. 24 the transmission unit 2 approximately perpendicular to the respective plane of rotation or to the axes of rotation A ₁ and A _{2 of} the drive unit and the mass flow control or valve unit 1 ,

Instead of providing projecting pins on the parts 21 and 24 may be a respective profiled recess or recess in a rotatably mounted with the element 19 connected or integral part 25 be provided as in 9a and 9b indicated. There is a cross-shaped profiled recess 250 shown. At the in 9a and 9b embodiment shown is not closed back recess, but an open provided in the form of recesses. In the top view, this would result in five passage openings, in each case two mutually opposite passage openings 252 . 253 . 254 . 255 and a middle passage opening 251 which is approximately round. Through the middle passage opening 251 the journal protrudes 192 the rotatably mounted element 19 therethrough or may be passed therethrough while the cam-like portions 227 of the wavy part 22 in each of the four the middle through holes 251 surrounding passage openings 252 . 253 . 254 . 255 , so profiled in the cross-shaped recess 250 lie. The spherically formed surface 233 at the corresponding end of the wavy part 22 does not rely flat plan from, but can due to the provision of the middle passage opening 251 at most on a material ring bounding them 256 punctiform or linear support, while tilting the wave-like part 22 opposite to the cross-shaped profiled recess 250 provided part 24 is possible. The cam-like sections 227 touch corresponding contact surfaces under line contact 257 . 258 , each the passage opening 252 to 255 laterally, away from the material ring 256 , limit.

The in 9a and 9b shown part 25 the transmission unit 2 on the one hand in combination with the wave-like part 22 be used. It is also possible cam-like sections 227 directly to the shaft section 20 provided drive-side part 21 to affiliate. Such a variant is in 10a to 10c shown. In this case, therefore, only the one with the shaft section 20 provided part 21 at its the wave section 20 opposite end with the cam-like sections 227 provided in the cross-shaped profiled recess or recess 250 of the part 25 engage, the podium-like exposed over the surface of the rotatably mounted element 19 is arranged, as in particular in 10b you can see. Also the part 25 with the cross-shaped profiled recess or recess 250 is thus exposed over the flat surface of the rotatably mounted element 19 arranged, as for the provided with the projecting pin part 24 in 3 can also be seen. Out 10c it can be seen that the cam-like sections 227 in the cross-shaped profiled recess 250 dip and at least when tilting (see 10c ) differently far through the through holes 252 to 255 protrude through.

The one with the projecting pins 210 Providing part 21 as well as with the cam-like sections 227 provided part 21 according to 10a to 10c each between the shaft section 20 and the connection section provided with the pins or the cam-like sections 26 a flange-like projecting support section 27 on. This one lays down, like 1 can be taken on the to the inner chamber 150 the mass flow control or valve unit 1 directed inside of the lid part 16 and is supported there. As no firm connection between the flange projecting carrier section 27 and the lid part 16 is provided, which can with the shaft portion 20 provided part 21 Also, at least slightly tilted to optimally with an actuator of the drive unit 3 to interlock and be driven by this. Not just a connection section 28 on the rotatably mounted element 19 can either with projecting pin or with the cross-shaped profiled recess or recess 250 be provided, but also the connection section 26 at the part 21 , By the combination of the intermeshing cam-like portions of the respective terminal contour and the pins with grooves arranged therebetween or the profiled recess / recess, the gimbal connection portion 4 created. The connection section 28 has, as already explained above, one exposed above the surface of the rotatably mounted element 19 arranged plateau-like structure, in which with the plane of the rotatable element 19 connected connecting struts 204 the passageways 191 are arranged through the centrally by the rotatably mounted element 19 Through a passage of medium is possible, as in 1 shown in the second connection device 13 into it.

In the in the 10a to 10c shown embodiment of the transfer unit 2 this includes only two parts, namely with the shaft portion 20 provided part 21 and with the cross-shaped profiled recess / recess 250 provided part 25 in particular integral with the rotatably mounted element 19 is. In the two-part construction of the transmission unit 2 only angular errors, so an angular offset can be compensated as radial compensation, while in the three-part forming the transmission unit 2 , as in 1 to 3 Both angular errors and an axial offset and an axial displacement, so radial and axial movements are compensated or can be via the transmission unit 2 ,

An alternative embodiment to that in the 10a to 10c shown is the in 11a and 11b shown embodiment of a two-part construction of the transmission unit 2 , This is the one with the shaft section 20 provided part 21 again with projecting pins 210 with grooves in between 214 Mistake. Instead of the flange projecting carrier section 27 is in the embodiment according to 11a and 11b however, each in the area of the arrangement of the grooves 214 a radial section 29 intended. At the in 11a and 11b embodiment shown are cross-shaped four radial sections 29 of the part 21 evenly distributed over the circumference, each in the area of the grooves 214 are positioned. The rotatably mounted element 19 has central cross-shaped struts 193 . 194 . 195 . 196 up, extending from an inner material ring 197 extend radially outward. The rotatably mounted element 19 is formed in principle as a flat ring in the center of the material ring 197 is arranged and from this the struts 193 to 196 to the remaining material of the rotatably mounted element 19 extend. To a gimbal connection section 4 also in this embodiment of the rotatably mounted element 19 to create, are the aspirations 193 to 196 each with a cam-like section 198 Mistake. Also these cam-like sections 198 each have two opposing rounded outer surfaces 199 . 200 on. The cam-like sections 198 grab with their rounded outer surfaces 199 . 200 turn in the grooves 214 of the part 21 in which, again, there is line contact between the cam-like sections 198 and the respective lateral contact surfaces 218 . 219 the pin 210 or grooves 214 is provided.

As an assembly aid when joining part 21 and the rotatably mounted element 19 is from the surface of the rotatably mounted element 19 sticking out a pin 201 on one of the struts, here the strut 195 arranged. The pin 201 is from one of the radial sections 29 , here in the area of a flattened section 202 at the section 20 arranged, recorded. The flattened section 202 at the shaft section 20 serves to find a defined zero position for the positioning of the shaft section 20 in the drive unit 3 or on the drive of the drive unit 3 , Accordingly, it proves to be advantageous, the pin 201 Where to position, where for the rotatably mounted element 19 a defined zero position or starting position relative to the part 21 should be provided.

On the edge side, a segment section projects 203 in this area from the surface of the otherwise flat flat rotatably mounted element 19 in front. Also this projecting segment section 203 serves for the correct positioning of the rotatably mounted element 19 inside the mass flow control or valve unit 1 and here opposite the fixed panel element 18 ,

The respective part provided with the cam-like sections 21 respectively. 22 may be completely or largely made of plastic or one or more plastic materials. Also, a tribological adaptation is possible to the effect that the respective cam-like portions of a firmer material, such as metal and / or ceramic, are formed. It is also possible, for example, the entire wave-like part 22 made of metal or a metal alloy or ceramic and only the other two parts 21 respectively. 24 or 25 Made of plastic. It is also possible, the respective contact surfaces of the gimbal connection portions, so not only the cam-like portions, but also the contact surfaces of the other two parts or the at least one other part with which the cam-like portions contact, made of a harder material such as metal or ceramics.

Due to the provision of a line contact of the contacting contact surfaces of the gimbal connection sections 4 Torques with reduced friction and thus reduced wear can be transmitted. In this case, neither a hysteresis occurs nor have the interlocking sections of the individual parts of the transfer unit 2 Game to each other, so that an optimal rotational and torque transmission can be made possible.

That through the transmission unit 2 Transmittable torque M is advantageously M = 0.4 to 3.5 Nm, preferably 1.2 Nm. Like from the 3 and 6a . 6b it can be seen by the transmission unit 2 compensatable axial offset v _I advantageous v _I = 0 to 3.0 mm, preferably 1.6 mm, by the transfer unit 2 compensatable angular offset v _W advantageous v _W = 0 to 14.0 °, preferably 8.0 °, the distance h _t between the support section 27 and the part 24 or 25 is advantageously h _t = 5.0 to 30.0 mm, preferably 17.5 mm, the heights h _m1 and h _{m2 of} the contact lines from the surface of the respective support portion 27 or part 24 or 25 are advantageously 0.5 to 7.0 mm, preferably 2.3 mm. The heights h _m1 and h _m2 can, but need not be the same. The outer diameter d _{k of} the gimbal-shaped wave-like part 22 is advantageously d _k = 6.0 to 18.0 mm, preferably 12.0 mm, the inner diameter, ie the diameter d _{ki of} the central core portion 220 (please refer 6b ), is advantageously d _ki = 4.0 to 10.0 mm, preferably 6.0 mm, the diameter d _{n of} the cam-like portion 226 respectively. 227 is advantageously d _n = 2.5 to 6.0 mm, preferably 4.0 mm, and the length l _{n of} the cam-like portion (in plan view of the wave-like part 22 (please refer 6b ) is advantageously l _n = 1.0 to 8.0 mm, preferably 3.0 mm.

The at the respective transmission unit 2 possible inclination of the individual parts of this to each other by the height of the respective spherical geometries in particular of the spherically shaped surfaces 232 . 233 of the wavy part 22 , the thickness of the struts 221 to 224 and the ratio between the diameter of the core portion 220 of the wavy part 22 and the inner diameter of the respective terminal contour of the engaging part there 21 respectively. 24 or 25 certainly. Possible axial displacements and movements may be due to the length of the contact surfaces end to the struts 221 to 224 and the corresponding grooves into which these in the part 24 or the part 25 or the part 21 intervene, be limited.

In addition to the embodiments of assembly units shown in the foregoing and comprising at least one drive unit and at least one Massenstromregel- or valve unit, and transmission units for this for transmitting torques and rotations from the drive unit to the mass flow control or valve unit can still numerous others In each case, the transmission unit is multi-part and comprises at least one gimbal connection portion to compensate for axial and / or radial offset between the receiving point of the transfer unit in the drive unit and the receiving point of the transfer unit in the mass flow control or valve unit.

LIST OF REFERENCE NUMBERS

1

Mass flow control or valve unit

2

transmission unit

3

drive unit

4

gimbal connection section

5

Massenstromverstelleinrichtung

10

casing

11

first housing part

12

first connection device

13

second connection device

14

third connection device

15

second housing part

16

cover part

17

Through opening

18

fixed aperture element

19

rotatably mounted element

20

shaft section

21

drive-side part

22

wavy part

24

part

25

part

26

connecting section

27

flange cantilever beam portion

28

connecting section

29

radial section

30

electric plug

100

assembly unit

120

first end of 2

121

second end of 2

150

inner chamber

180

Through opening

190

Through opening

191

Through opening

192

pivot

193

strut

194

strut

195

strut

196

strut

197

material ring

198

cam-like section

199

rounded outer surface

200

rounded outer surface

201

spigot

202

flattened section

203

segment section

204

connecting strut

210

spigot

214

groove

218

contact area

219

contact area

220

core section

221

strut

222

strut

223

strut

224

strut

225

middle section

226

cam-like section

227

cam-like section

228

rounded outer surface

229

rounded outer surface

230

rounded outer surface

231

rounded outer surface

232

spherically formed surface

233

spherically formed surface

240

spigot

244

groove

248

contact area

249

contact area

250

cross-shaped profiled recess

251

middle passage opening

252

Through opening

253

Through opening

254

Through opening

255

Through opening

256

material ring

257

contact area

258

contact area

A ₁

axis of rotation

A ₂

axis of rotation

L1

line Contact

L2

line Contact

v _I

offset

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012022213 A1 [0003, 0007, 0008, 0008, 0009]

Claims (15)

Assembly unit ( 100 ) with at least one drive unit, in particular an actuator unit ( 3 ), and at least one mass flow control or valve unit ( 1 ), wherein the mass flow control or valve unit ( 1 ) at least one rotatable element ( 19 ) a mass flow adjustment device ( 5 ) for regulating a mass flow and the drive unit ( 3 ) at least one drive or an actuator for driving the rotatable element ( 19 ) and at least one transmission unit ( 2 ), the transmission unit ( 2 ) at a first end ( 120 ) with the drive unit ( 3 ) and at a second end ( 121 ) with the at least one rotatable element ( 19 ) of the mass flow adjustment device ( 5 ) of the mass flow control or valve unit ( 1 ) connectable or connected and for transmitting torque and rotation from the drive unit ( 3 ) to the mass flow control or valve unit ( 1 ), characterized in that the transmission unit ( 2 ) at least two parts ( 21 . 22 . 24 . 25 ), which via at least one gimbal connection section ( 4 ) are connected to one another or connected to compensate for an axial and / or radial offset between the connection point of the transmission unit ( 2 ) with the drive unit ( 3 ) and the connection point of the transmission unit ( 2 ) with the mass flow control or valve unit ( 1 ). Assembly unit ( 100 ) according to claim 1, characterized in that the at least one gimbal connection section ( 4 ) contact surfaces in contact via a line contact ( 199 . 200 . 218 . 219 . 228 . 229 . 230 . 231 . 248 . 249 . 257 . 258 ), in particular at least one contact surface ( 199 . 200 . 248 . 249 . 257 . 258 ) on the rotatable element ( 19 ) or at an intermediate element of the mass flow control or valve unit which can be connected or connected thereto ( 1 ) and / or at least one contact surface ( 218 . 219 ) in the area of the drive unit ( 3 ). Assembly unit ( 100 ) according to claim 1 or 2, characterized in that the transmission unit ( 2 ) in two parts for angle compensation or in three parts for angle compensation and axial offset compensation and / or compensation of an axial displacement between a rotation axis (A ₂ ) of the transfer unit ( 2 ) in the drive unit ( 3 ) and a rotation axis (A ₁ ) of the transmission unit ( 2 ) in the mass flow control or valve unit ( 1 ) is trained. Assembly unit ( 100 ) according to one of the preceding claims, characterized in that one of the parts ( 24 . 25 ) of the transmission unit ( 2 ) on the rotatable element ( 19 ) of the mass flow adjustment device is formed or arranged. Assembly unit ( 100 ) according to one of claims 2 to 4, characterized in that in the case of a tripartite design the transmission unit ( 2 ) one with cam-like sections ( 226 . 227 ) provided wavy part ( 22 ) with a first end and a second end opposite thereto, one with the first end of the shaft-like part ( 22 ) intermeshing or intermeshing with the drive unit ( 3 ) connectable or connected part ( 21 ) and one with the second end of the wave-like part ( 22 ) intermeshing or intermeshable with the mass flow control or valve unit ( 1 ) connectable or connected part ( 24 . 25 ). Assembly unit ( 100 ) according to one of the preceding claims, characterized in that the with the drive unit ( 3 ) connectable or connected part ( 21 ) of the transmission unit ( 2 ) a cooperating with this shaft portion ( 20 ) with at least one flattened section ( 202 ) for creating a defined zero position of the shaft section ( 20 ) in the drive unit ( 3 ). Transmission unit ( 2 ) for transmitting torque and rotation from a drive unit ( 3 ) to a mass flow adjustment device ( 5 ) of a mass flow control or valve unit ( 1 ), in particular according to one of the preceding claims, characterized in that the transmission unit ( 2 ) at least two parts ( 21 . 22 . 24 . 25 ), which via at least one gimbal connection section ( 4 ) are connectable or connected to each other, at least one part ( 19 . 21 . 22 ) cam-like sections ( 198 . 226 . 227 ) each having at least two opposing rounded outer surfaces ( 199 . 200 . 228 . 229 . 230 . 231 ) and the at least one second part ( 21 . 24 . 25 ) Contact surfaces ( 218 . 219 . 248 . 249 . 257 . 258 ), wherein the cam-like portions ( 198 . 226 . 227 ) and the contact surfaces ( 218 . 219 . 248 . 249 . 257 . 258 ) are intermeshable or intermeshing in line contact. Transmission unit ( 2 ) according to claim 7, characterized in that the at least one second part ( 25 ) at least one with the contact surfaces ( 257 . 258 ) provided profiled recess ( 250 ) into which the cam-like sections ( 226 . 227 ) or with the contact surfaces ( 21 . 219 . 248 . 249 ) provided projecting pins ( 210 . 211 . 212 . 213 . 240 . 241 . 242 . 243 ) and between these arranged grooves ( 214 . 215 . 216 . 217 . 244 . 245 . 246 . 247 ) into which the cam-like sections ( 226 . 227 ) are engageably positionable or positioned has. Transmission unit ( 2 ) according to one of claims 7 or 8, characterized in that the at least one part ( 22 ) and in cross section is formed cross-shaped, wherein it has a central core section ( 220 ) and this surrounding, with the cam-like sections ( 226 . 227 ) provided struts ( 221 . 222 . 223 . 224 ), wherein the struts ( 221 . 222 . 223 . 224 ) parallel to the central core section ( 220 ). Transmission unit ( 2 ) according to claim 9, characterized in that the struts ( 221 . 222 . 223 . 224 ) each end with the cam-like sections ( 226 . 227 ) are provided. Transmission unit ( 2 ) according to one of claims 8 to 10, characterized in that the at least one second with the at least one profiled recess ( 250 ) or the projecting pin ( 210 . 211 . 212 . 213 . 240 . 241 . 242 . 243 ) provided part ( 25 ) of the transmission unit ( 2 ) on a rotatably mounted or storable element ( 19 ) of the mass flow adjustment device ( 5 ) of the mass flow control or valve unit ( 1 ) exposed plateau-like to its surface, providing at least one passage opening ( 191 ) is arranged to create a flow cross-section. Transmission unit ( 2 ) according to one of claims 7 or 8, characterized in that the at least one with the cam-like sections ( 198 ) provided part as part of a rotatably mounted or storable element ( 19 ) of the mass flow adjustment device ( 5 ) of the mass flow control or valve unit ( 1 ), wherein the rotatably mounted or storable element ( 19 ) in its middle area struts ( 193 . 194 . 195 . 196 ) and the cam-like sections ( 198 ) on the struts ( 193 . 194 . 195 . 196 ) are arranged or formed. Transmission unit ( 2 ) according to one of claims 7 to 12, characterized in that at least one means for centering the by the at least one gimbal connection portion ( 4 ) connectable or connected parts ( 21 . 22 . 24 . 25 ) of the transmission unit ( 2 ) is provided, in particular a sealing ring. Transmission unit ( 2 ) according to one of claims 7 to 13, characterized in that at least one spherically formed surface ( 232 . 233 ) at the end of the at least one part ( 22 ) of the transmission unit at the at least one part of the transmission unit ( 2 ) arranged with a recess or recess or a material ring in the at least one further part ( 21 . 24 . 25 ) of the transmission unit ( 2 ) cooperates to create a thrust bearing for tilting the part ( 22 ) compared to the at least one further part ( 21 . 24 . 25 ). Transmission unit ( 2 ) according to one of claims 7 to 14, characterized in that at least the at least one with the cam-like portions ( 198 . 226 . 227 ) provided part ( 19 . 22 ) consists at least partially of at least one plastic material, in particular completely made of at least one plastic material or at least in the with the cam-like portions ( 198 . 226 . 227 ) provided area of at least one metal or at least one metal alloy and / or ceramic.

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