DE102008006634A1 - Test bench for e.g. transverse transmission, of vehicle, has drive device coupled with transmission, and module component provided with standard elements that are adapted individually to transmission - Google Patents

Abstract

The bench has a specimen support accommodating a transmission, and a drive device (14) coupled with the transmission. A module component is provided with standard elements that are adapted individually to the transmission. The module component is provided with a drive strand (10). The drive strand, an output strand and a pallet index are arranged on a machine bed (12). The machine bed is manufactured as a single-piece frame from casting or designed as a welded part. The machine bed accommodates longitudinal transmissions and transverse transmissions.

Description

The The invention relates to a transmission tester according to Preamble of claim 1.

Around to simulate the load on a gearbox in the vehicle before it is installed and to develop quality improvements on the transmission, are gearboxes of different types in transmission test stands tested before installation in a vehicle. A transmission test bench is a device for testing transmissions, in particular Vehicle transmissions, outside the vehicle and in the Usually before installation in the same. The transmission test bench usually has a receptacle for the transmission, a Drive means for driving the coupled with this transmission, a load device to simulate the load in the vehicle, and measuring and control devices for recording measured values and control signals.

From the DE 39 05 983 A1 For example, a transmission tester is known, which has a Prüflingsträger for receiving a designated as a test specimen transmission. The test object is drivingly coupled to a drive device and a load device designated as output device. The Prüflingsträger is designed as a turntable on which a plurality of specimens are receivable.

It the object of the present invention is a test stand to provide, in the transmission of different design and size can be installed and tested.

The Task is according to the invention with the features of the independent claim.

One Transmission test bench has a to be tested Gear receiving Prüflingsträger and a connectable to the transmission drive device. The transmission test bench is characterized in that at least one module assemblies provided is, wherein the at least one module assemblies standard elements and individually adapted to the respective gear to be tested Has elements. The use of modular modules realized a modular design of a transmission tester, so in the transmission tester gearbox with different Dimensions can be installed for the purpose of testing. The dimension of a transmission is in the context of the invention as a puncture designated. The adaptation of the individual to the examined Gearbox adapted elements of the respective module assemblies are to realize with little structural and constructive measures, since it concerns static conversion measures, d. H. unique Conversions, is about a new type of transmission. The on the individual gearbox adapted elements of the assemblies are For example, coupling rods whose length adapted is, or adapter plates whose size is adjusted becomes. If necessary, the modular design allows a Upgrade by additional adjustment units, making a 1: 1 test of gears with different Gap dimensions in the input and output allows can be.

In a preferred embodiment of the transmission tester the at least one module assembly is a first module assembly Powertrain, wherein the drive train, the drive device having. The drive device is in the context of the invention as Engine designates and drives the gear to be examined at. The structure of the powertrain module assembly is for Longitudinal and transverse gear test rigs in principle equal. The differences are only in length of the powertrain, by the individual to be examined Gearbox adapted elements is adjusted. This can be a Module module for different gearboxes to be examined be used.

In Another preferred embodiment is a second one Module assembly output train provided, with the test Transmission between the module assemblies powertrain and output train can be installed. The output device is a load device or brake. The drive and output trains are uniform be constructed and have a uniform drive torque of preferably 250 Nm. In particular, automatic transmissions are at the above Tested drive torque. By the unification the drive and take-off device can be identical arrival and Output strands for the different gearboxes be used. Only the individually adapted elements are exchanged when testing different gearboxes or added. In contrast, according to the state the technology for different gear each a new one Transmission tester can be used.

In a preferred embodiment of the transmission tester is provided a module assembly pallet index. The pallet index serves to lift and align a gearbox to be tested and is the same for all automatic transmission test stands.

In a preferred embodiment of the transmission test rig, the module assemblies powertrain, output train and pallet index are constructed on a machine bed. The structure of the module assemblies, the interfaces to a transport device and the flange surfaces for the pallet index are fixed. This is advantageously a Standardization of the connections realized. As a result, the machine bed can be used essentially for all types of gear to be tested. In particular, the machine bed is a one-piece machine bed. The machine bed is preferably designed as a one-piece frame, which is made of cast or formed as a welded part designed.

In a preferred embodiment of the transmission tester are in the machine bed both longitudinal gear as well Transverse gear can be received. This can be done with a machine bed the different gears, especially transverse gears, like these present in four-wheel automatic transmissions, and longitudinal transmission be tested on the same test bench.

In a particularly preferred embodiment of the transmission tester is the machine bed designed for longitudinal gear so that an additional machine bed to the machine bed is adaptable for a cardan machine. The machine bed for the cardan machine is the respective circumstances adapted to the loading. In particular, the flange images customized.

In Another preferred embodiment of the transmission tester are in the drive train and / or in the drive train adapter plates intended. By means of the adapter plates is the drive train and the output line in the y- and z-direction to the different Gap dimensions of various gears customizable. The adapter plates can be easily exchanged and / or edited. Furthermore, it is also intended to arrange them differently. The Adapter plates are used, for example, for fine adjustment of a bearing block of the drive train.

In a further preferred embodiment of the transmission tester indicates the module assembly powertrain and / or output train the Prüflingsträger on which a clamping angle with a clamping plate for receiving the gear to be tested having, wherein the clamping plate the individually adapted element the module assemblies is. By means of the clamping plate is to be examined Gearbox held. On the carriages which can be delivered in the x-direction are a linear guide, the clamping angle and thus the Clamping plate and a displacement unit of the drive device assembled. About an NC drive is the clamping angle and so that the clamping plate can be moved in the x-direction. About a second NC drive can drive the powertrain into a test position be driven to the test of the transmission. The NC drive may also be replaced by a holding brake become. The clamping plate is the customized element of the respective module.

In a preferred embodiment of the transmission tester a driver tool and at least one coupling rod are provided, wherein the at least one coupling rod and the Mitnehmerwerkzeug the individually adapted elements of the assemblies. Here is the length of the drive train and / or the drive train by means of the at least one coupling rod changeable. It is Furthermore, it is possible to have another NC adjusting unit in place provided the driving tool. By means of the coupling rod can the dimensions of the drive train and / or the output train to the length dimensions of the gearbox to be tested be adjusted. As a result, only the coupling rods can be exchanged and the standard assemblies can for Gearboxes with different dimensions can be used.

In Another preferred embodiment is additional Coupling rods provided in the drive train and / or in the drive train, where the coupling rods are the customized elements of the assemblies are. The sum of the lengths of each Coupling bars corresponds to the required dimensions of the drive train depending on the -stichmasse of the respective to be tested Transmission.

In a further preferred embodiment of the transmission tester has the drive train for a transverse gear in addition an offset gear on. As a result, a vertical offset can be realized become.

In Another embodiment is in the drive train and provided in the drive train in each case a bearing block. It is preferred a unit bearing block for all automatic transmission test stands used. The same applies to the bearing block of the manual transmission test stands.

In a further preferred embodiment, a measuring bridge is provided. The measuring bridge is either a rigid measuring bridge or a moveable measuring bridge. On the bridge are all necessary to operate the transmission adjustment and adaptation units, such as selector lever, central plug and noise pickup mounted. For both variants (rigid and moveable measuring bridge), appropriate flange patterns are provided on the machine bed. The individual adaptation units are preferably designed gearbox-specific and are usually cushioned. The situation and the delivery movements are also adapted to the respective examination. If electrical plugs are used, the pins or contacts are designed with spring-loaded pins. Before contacting the pins, the connectors are preferably aligned via a Einführfase the connector housing. The test-side adaptation unit / plug attachment can be stored floating.

following The invention will be more apparent from the figures of the drawing described that make up regardless of the summary in the claims further features, details and advantages of the invention.

It show in a schematic representation:

1 : a schematic representation of the module assembly powertrain;

2 : a schematic representation of the module assembly output line cross-right;

3 : a schematic representation of the module assembly power train longitudinal and transversely-left;

4 : a schematic representation of the pallet index.

1 shows a schematic sectional view of a drive train 10 a transmission tester. The powertrain 10 is on a machine bed 12 arranged. On the machine bed 12 are also in the 2 and 3 shown output strands transverse right, longitudinal and transverse left and the in 4 arranged pallet index arranged. The machine bed 12 is equally designed for longitudinal gearbox test rigs for testing longitudinal gearboxes as well as for transverse gear test benches for testing transverse gearboxes. Here, in longitudinal gear test benches, the machine bed is designed so that subsequently an additional machine bed (not shown) can be adapted for a cardan machine. This is necessary, for example, for installing a manual transmission and / or an automatic longitudinal gear. When installing, for example, an automatic transmission in transverse design no Kardanmaschine is provided.

The machine bed 12 is preferably a one-piece machine bed and designed as a casting or as a welded part. The machine bed 12 is also designed to drain any accumulated oil to a central collection point. On the machine bed 12 No electrical and / or hydraulic lines are laid. At the machine bed 12 Flange pictures are provided. As a flange image, the interface or connection point between at least two elements, standard elements or individually adapted to the examined transmission element.

The powertrain 10 also has a drive device 14 , a shaft offset coupling 16 , a torque flange 18 , an overload clutch 20 , a bearing block 22 as well as a driver tool 24 on. The entrainment tool 24 and one between the drive means 14 and the shaft offset coupling 16 arranged coupling rod 28 , one between the shaft offset clutch 16 and the torque flange 18 arranged coupling rods 28 and one between the torque measuring flange 18 and the bearing block 22 arranged coupling rod 30 are individually adapted to the respective gearbox to be examined element of the module assembly. The drive device 14 , the shaft offset coupling 16 , the torque flange 18 as well as the overload clutch are commercially available standard component and thus standard elements. These items listed above form the core of the powertrain 10 and are on a shift unit 36 stored.

The displacement unit 32 has an adapter plate 34 on. By exchange, processing or different arrangement of the adapter plate 34 Adjustments to the pitch dimensions of the respective gear in z- and y-direction can be realized. In the bearing block 22 is a connecting shaft (not shown) between the actual drive train 10 and the entrainment tool 24 stored. The bearing block 22 is on the adapter plate 34 stored. Thus, the adapter plate is used 34 for fine adjustment of the bearing block 22 and thus the entire powertrain 10 in the y and z directions.

Between the machine bed 12 and the displacement unit 32 is a linear guide 36 arranged. Below the linear guide is a clamping angle 38 arranged, which has a straight horizontal part 40 acting as a guide rail 40 is designated, as well as a perpendicular to this aligned part 42 having. To the vertical part 42 is a clamping plate 44 arranged and preferably rotatably mounted. The clamping plate 44 is an element of the module assembly adapted individually to the pitch dimensions of the gearbox. The powertrain 10 also has an NC adjustment drive 46 for the entrainment tool 24 on. The guide rail 40 is used for fine adjustment in the x-direction and thus allows different positions between the clamping angle 38 and the entrainment tool 24 , This relative movement between the driver tool 34 and the clamping angle 38 is at a threading of the driver tool 24 required.

The drive device 14 is on a shift unit 48 arranged, which is an adapter plate 50 having. By means of the adapter plate 50 and / or the adapter plate 34 the adaptation of the drive train takes place 10 on the stitch dimensions of the respective gearbox to be installed (not shown) in the y- and in the z-direction. An individually tailored to the gearbox to be installed coupling rod 52 is between the displacement unit 48 and the displacement unit 32 arranged.

Between the machine bed 12 and the linear guide 36 and the displacement unit 48 are each a first NC drive 54 and a second NC drive 54 arranged. Further, on the machine bed 12 a linear guide clamping angle drive mechanism 56 , which has a guide carriage and a clamping unit arranged.

The clamping angle 38 is provided in two embodiments. The clamping angle 38 assumes in the embodiment of the longitudinal design the function of a support module for the clamping plate 34 , the displacement unit 32 for the bearing block 22 and various hydraulic and electrical components. In transverse construction, this is the carrier module for the displacement unit 34 the bearing block of the right drive (see explanations to 3 and 4 ) designed. At the front of the clamping angle 38 is in each case a flange image for the clamping plate 44 arranged as well as a breakthrough (not shown) for the drive of the driver tool 24 , In the embodiment for transverse gear is also an opening for the driving tool 24 of the right-hand output (see explanations to 2 ) intended.

The dimensions and flange patterns of the clamping angle 38 are once established in the manufacture of the transmission test rig and then remain unchanged in the variations, in particular the individually adapted elements of the module assemblies due to the different dimensions or pitches of the gear to be tested.

The clamping plate 44 is the element of the powertrain assembly that is individually adapted to the respective gearbox type. The clamping plate 44 is the carrier element for clamping elements, the associated interrogation sensors and the centering pins. The clamping plate 44 has a uniform flange pattern on its front and is fixed to the clamping angle 38 screwed. The front 44a is individually adapted and adapted to the gearbox type to be tested for gearbox clamping. It is a breakthrough (not shown) for the driver tool 24 intended. In the embodiment for testing transverse gears, an opening for the driver tool output "right" (see 3 ) intended.

In principle, all electrical lines between the clamping plate are preferred 44 and the clamping angle 38 realized by plug.

The gearbox is driven by means of hydraulic clamping elements for testing or testing on the clamping plate 44 clamped. The clamping elements are designed so that pressure points on the gearbox and movements of the gearbox in test mode are excluded even with occurring torque surges and no lateral forces acting on the centering pins.

It is envisaged that a query before installation of the transmission takes place, to what extent the transmission variant to be tested have different dimensions between the end faces of the input shaft and the transmission flange. This is important because the gearbox is on the clamping plate 44 must be present, or only when reaching the target end position of the clamping angle 38 a clutch bell (not shown) comes to rest.

The drilling pattern is uniform for all module assemblies of the transmission test bench and will be determined during initial construction. Thus, the components such as coupling rods and adapter plates and clamping plate 44 regardless of the dimensions of all test benches mounted the same.

The vote when installing different gearboxes in the x-direction done with the coupling rods 26 . 28 . 30 and 52 , The adjustments for the installation of different gearboxes in y- and z-direction are made by means of the adapter plates 34 and 50 and the clamping plate 44 , Here, the information x-direction, y-direction and z-direction refer to the in 1 shown Cartesian coordinate system.

2 shows a schematic sectional view of a drive train 60 a transmission test rig, which is called "transversely-right" and is intended for the installation of a transverse transmission .The same parts are provided with the same reference numerals and it is to the description to 1 is referenced.

The output train 60 is on the machine bed 12 arranged. The output train 60 is like the one in 3 shown output train "transverse-left or" longitudinal "modular design.

The individually adapted to the gearbox to be installed or adaptable elements are: a coupling rod 64 between the assembly output device 62 with a first shaft offset coupling 66a and an offset gearbox 68 is arranged, a coupling rod 70 , between a serving as a brake gear coupling 72 and a torque flange 74 with a second shaft offset coupling 66b is arranged, a third coupling rod 76 between the torque flange 74 and a bearing block 78 is arranged, and a driver tool output 80 , At the entrainment tool 80 facing the end of the bearing block 78 is a safety coupling 79 arranged. Furthermore, individually adjustable coupling rods 77a and 77b between a displacement unit 82 with an adapter plate 84 and the offset gear 68 on the machine bed 12 arranged facing the end and between the offset gear 68 and a displacement unit 86 with an adapter plate 88 ,

The output train 60 also has a clamping angle 90 with a clamping plate mounted on it 92 on. The output device 62 is on an NC drive 93 , in the context of the invention as the drive NC drive train 93 designated, disposed between the displacement unit 82 and the machine bed 12 is arranged. Another displacement unit 94 with an adapter plate 96 is between the offset gear 68 and the machine bed 12 arranged.

The output device 62 corresponds to the input torque of the drive unit 10 because the input torque is fixed, preferably with 250 Nm. Therefore, the output device is also 62 uniform for all transmission test stands.

The components safety coupling 98 , Torque flange 74 and gear coupling 72 are standard elements.

The adapter plates 84 and 96 are, as well as in the powertrain 10 from 1 , provided for the static alignment of the x, y, and z direction. To the power train 60 to adapt to a new gearbox are the adapter plates 84 and 96 , which also serve as carrier plates for the respective modules, adapted and provided with a corresponding hole pattern. When a dynamically adjustable output line in yz direction 60 is provided, the adapter plates are replaced by another adjusting unit, not shown.

3 shows a power train 100 showing a power train "longitudinal" and "cross-left" in a schematic sectional view. The same parts are denoted by the same reference numerals as in FIGS 1 and 2 designated. The output train 60 and the power train 100 are essentially the same. The difference lies in the absence of the offset gear 68 the output train 60 , The powertrain 100 has no offset gear. Consequently, there is a single coupling rod 65 between the bearing block and the output device 62 arranged. This is not necessary because the spatial conditions in the power train 100 not limited by other constructions. Another difference is that a coupling rod 102 between a displacement unit 104 with an adapter plate 106 constructed differently than the displacement unit 86 in the power train 60 ,

4 shows a palette index 110 , the lifting and aligning a gearbox to be installed on the Spanngatte 44 serves. Like parts are denoted by the same reference numerals as in the 1 to 3 designated. The pallet index 110 has a console 112 , a linear guide 114 , an NC spindle drive 116 , a lifting unit 118 and an index plate 120 on.

In essence, the pallet index 110 built like a forklift. On the forks of the lifting unit 118 is the index plate 120 assembled. The index plate 120 is individually tailored to the one workpiece carrier. The index plate 120 is an individually adapted to the respective gear to be examined element of the module assembly plate index 110 , In particular, the index plate 120 individually adapted to a workpiece carrier, so that it fixes and aligns the workpiece carrier during excavation.

The workpiece carrier with the applied gear is via the linear guide 114 with the NC spindle drive 116 raised to test position in z-direction. After completion of the test run the workpiece carrier is raised again in the receiving position and the gear relaxed. The index is lowered to the discharge position so that the gearbox can be removed from the test bench.

On the left output side of the test bench is a flange pattern for adapting the pallet index 110 The flange pattern is uniform for all module test benches and is determined during the initial design.

Of the Transmission test bench has a measuring bridge, in all the adjustment necessary for operating the transmission and adaptation units, such as selector lever adjusters, Central plug and noise are mounted.

ever According to embodiment, a rigid or a movable Measuring bridge be provided. For both embodiments then appropriate flange pictures are provided on the machine bed. In the measuring bridge is preferably a structure-borne sound pickup provided, the vibration technology of the transmission tester is decoupled. The sensor is a standard component. Furthermore, a Load cell provided.

10

powertrain

12

machine bed

14

prime mover

16

Shaft misalignment coupling

18

torque flange

20

Overload clutch

22

bearing block

24

follower die

26

coupling rod

28

coupling rod

30

coupling rod

32

displacement unit

34

Adapter plate of the displacement unit 32

36

Linear guide for the displacement unit 32

38

rake angle

40

horizontally extending part of the clamping angle 38

42

vertical part of the clamping angle 38

44

chipboard

46

NC adjustment drive for the driving tool 24

48

displacement unit

50

Adapter plate of the displacement unit 48

52

coupling rod

54

NC drive

56

linear guide Rake angle drive mechanism

60

Power train "cross-left"

62

PTO

64

coupling rod

66

Gear coupling ( 66a and 66b )

68

shifting drive

70

coupling rod

72

gear coupling

74

torque flange

76

coupling rod

78

bearing block

80

follower die output

82

displacement unit

84

Adapter plate of the displacement unit 82

86

displacement unit

88

Adapter plate of the displacement unit 84

90

rake angle

92

chipboard

93

NC drive drive train

94

displacement unit

96

Adapter plate of the displacement unit 94

98

safety clutch

100

Output line "longitudinal" and "cross-right"

102

coupling rod

104

displacement unit

106

Adapter plate of the displacement unit 104

108

Linear guide of the clamping angle 90

110

palette index

112

console

114

linear guide

116

NC drive; preferably spindle drive

118

lifting unit

120

Index plate

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 3905983 A1 [0003]

Claims (17)

Transmission test with a, a test to be examined receiving DUT and a coupled to the transmission drive device, characterized in that at least one module assembly is provided, wherein the at least one module assembly standard elements and individually adapted to the particular gear to be tested elements. Transmission test bench according to claim 1, characterized in that the at least one module assembly a first module assembly powertrain ( 10 ), wherein the drive train ( 10 ) the drive device ( 14 ) having. Transmission test rig according to claim 2, characterized in that a second module assembly output train ( 60 . 100 ), wherein the transmission to be tested between the module assemblies powertrain ( 10 ) and output line ( 60 . 100 ) can be installed. Transmission test rig according to one of claims 1 to 4, characterized in that a module assembly pallet index ( 110 ) is provided. Transmission test rig according to one of claims 1 to 4, characterized in that module assemblies powertrain ( 10 ), Output line ( 60 . 100 ) and palette index ( 110 ) on a machine bed ( 12 ) are arranged. Transmission test bed according to claim 5, characterized in that the machine bed is a one-piece machine bed ( 12 ), and in particular as a one-piece frame is made of cast or formed as a welded part. Transmission tester according to one of claims 5 or 6, characterized in that the machine bed ( 12 ) is designed so that both longitudinal transmission and transverse transmission can be accommodated. Transmission test rig according to claim 7, characterized in that the machine bed ( 12 ) is designed for longitudinal gear so that an additional machine bed to the machine bed ( 12 ) is adaptable for a cardan machine. Transmission test stand according to one of claims 1 to 8, characterized in that in the drive train ( 10 ) and / or in the power train ( 60 . 100 ) at least one adapter plate ( 36 . 50 . 84 . 96 . 106 ) are provided as an individually adapted element of the module group. Transmission test stand according to one of claims 2 to 9, characterized in that the drive train ( 10 ) and / or the power train ( 60 . 100 ) the Prüflingsträger, comprising a clamping angle ( 38 . 90 ) with a clamping plate ( 44 . 92 ) for receiving the gear to be tested, wherein the clamping plate ( 44 . 92 ) is the customized element of the module assemblies. Transmission test stand according to one of claims 1 to 10, characterized in that a driver tool ( 24 . 80 ) and at least one coupling rod ( 26 . 28 . 30 . 52 . 64 . 65 . 66a . 66b . 74 . 76 . 77a . 77b ) are provided, wherein the at least one coupling rod ( 26 . 28 . 30 . 52 . 64 . 65 . 66a . 66b . 74 . 76 . 77a . 77b ) and the entrainment tool ( 24 . 80 ) are the customized elements of the module assemblies. Transmission test stand according to claim 10 or 11, characterized in that the length of the drive train ( 10 ) and / or the output line ( 60 . 100 ) by means of the at least one coupling rod ( 26 . 28 . 30 . 52 . 64 . 65 . 66a . 66b . 74 . 76 . 77a . 77b ) is changeable. Transmission test rig according to one of claims 10 to 12, characterized in that additional coupling rods ( 26 . 28 . 30 . 52 . 64 . 65 . 66a . 66b . 74 . 76 . 77a . 77b ) in the drive train ( 10 ) and / or in the power train ( 60 . 100 ) are provided, wherein the coupling rods ( 26 . 28 . 30 . 52 . 64 . 65 . 66a . 66b . 74 . 76 . 77a . 77b ) are the customized elements of the module assemblies. Transmission test rig according to one of claims 2 to 13, characterized in that the drive train ( 10 ) for a transverse gear additionally an offset gear ( 68 ) having. Transmission tester according to one of claims 2 to 14, characterized in that in the drive train ( 10 ) and in the drive train ( 60 . 100 ) one bearing block each ( 22 . 78 ) is provided. Transmission tester according to one of the claims 1 to 15, characterized in that a measuring bridge is provided. Transmission tester according to claim 15, characterized characterized in that the measuring bridge is a rigid measuring bridge or a movable bridge is.