DE102008056773A1 - Auxiliary equipment coupling for use in auxiliary equipment arrangement, comprises two mounting elements for connecting two shafts, and transmission element arranged between two shafts - Google Patents

Abstract

The auxiliary equipment coupling comprises two mounting elements (120,134) for connecting two shafts, and a transmission element (130) arranged between the two shafts. A fuse element (148) is provided, with which two mounting elements and the transmission element are locked together in an undetachable manner. The fuse element is formed as an axial stop. An independent claim is included for an auxiliary equipment arrangement with an input shaft.

Description

The The invention relates to an accessory clutch and an accessory assembly, in particular an accessory assembly with a power steering pump.

Out In practice, shaft-hub connections are known with which, for example Waves can be coupled to drive wheels. Such shaft-hub connections are also used in practice, To drive trains of ancillary units of drives, in particular to design internal combustion engines of motor vehicles.

Out The practice is also a variety drehfestarrer, not switchable Couplings known with which rotating shafts are connected can. Such couplings include, among others, cross-slotted couplings, which are also referred to as Oldham couplings. With these it is to a limited extent, an angular and / or offset axial offset between rotating shafts.

One designed in the manner of a ring tension compensation coupling shaft coupling is from the DE 692 08 657 T2 This coupling has a first and a second mounting element for connection to a first or a second shaft and a disk-shaped transmission element arranged therebetween.

In many applications, especially with accessory assemblies In vehicle construction weight and space problems are to be considered. Therefore Simple shaft-hub connections are generally the means of choice. However, such shaft-hub connections require both in the manufacture of the individual components of the arrangement as also with the assembly a very high precision, which the Production difficult.

Of the Invention is based on the object, an easy to install Ancillary coupling and an easy-to-install ancillary assembly to provide the larger one Allow tolerances in the construction of aggregate arrangements.

The Solution of this problem is inventively with the features of claims 1 and 6, respectively.

According to the Invention is an accessory clutch having a first and a second mounting element for connection to a first and second shaft and a transmission element arranged therebetween provided, wherein furthermore a securing element is provided with which the first or the second mounting member and the transmission element Captive secured to each other. With the invention is a Coupling provided, the larger Tolerances with respect to any angular and / or axial offset between permitting rotating shafts, wherein by the securing element the Installation is very easy to carry out.

According to one preferred embodiment of the invention is the securing element designed as axial stop. In such an embodiment can also allowed larger tolerances in the axial direction be made, whereby the production and assembly is facilitated.

According to one Another particularly preferred embodiment of the invention is Secured element designed as a locking pin, wherein the locking pin preferably fixed to the first or second mounting element, is pressed in particular on this in mounting opening. Such a design facilitates the manufacture and assembly.

According to one further preferred embodiment of the invention is provided that the transmission element as a cross-plate of a cross-slotted coupling is trained. In such an embodiment, a relative large angular and axial misalignment are allowed.

According to one further preferred embodiment of the invention is provided in that in the first and / or the second mounting element for connection a first and a second shaft serrations, in particular Spline teeth are formed. To facilitate such gearing the assembly.

The Advantages of the invention are also evident in an accessory assembly with at least a first, a first wave (input shaft) having first unit and a second shaft (drive shaft), if - like provided according to a further aspect of the invention - the second wave by means of an inventively designed Coupling is coupled to the first shaft. Therefore, also for an accessory assembly claimed independently protection. The coupling allows large tolerances be, whereby the assembly is facilitated.

According to a particularly preferred embodiment of the invention it is provided that the drive shaft is formed as a second input shaft of a second unit. In this way, it is possible to drive two units with few components. This is especially true if on the drive shaft, a drive wheel, esp special a drive wheel is arranged with a toothing.

According to others preferred embodiment of the invention it is provided that the first unit is a power steering pump, and according to a Another preferred embodiment is further provided that the second unit arranged in a crankcase High pressure pump is.

Further yield advantageous embodiments and refinements of the invention from the subclaims as well as from the description in connection with the drawings. Showing:

1 A particularly preferred embodiment of an accessory assembly according to the invention with a particularly preferred embodiment of an accessory coupling according to the invention, and

2 a perspective view of the accessory clutch in 1 ,

In the 1 shown particularly preferred embodiment of an accessory assembly 100 comprises as a first aggregate 102 a power steering pump 104 as well as a second aggregate 106 a high pressure pump 108 , The power steering pump 104 is on a flywheel housing 110 attached. The high pressure pump 108 is located inside a crankcase 112 an internal combustion engine.

The first unit 102 has a first wave 114 on, at the free end 116 a serration 118 is trained. The first wave 114 can also be used as the first input shaft of the power steering pump 104 be designated. On the first wave 114 sits a first mounting element 120 which has a central, with a serration 122 provided hub area 124 having. The serration 118 . 122 are matched, so the first wave 114 in the hub area 124 of the first mounting element 120 is pluggable.

From the hub area 124 extend in the radial direction, 180 ° offset from each other, a first and a second coupling arm 126 . 128 that is in a transmission element 130 intervene, which in the manner of a cross-slice 132 a cross-slotted coupling is formed.

The transmission element 130 also acts with a second mounting element 134 together, which with a second wave 136 (Drive shaft) is rotationally coupled, wherein the second shaft 136 (Drive shaft) at the same time a second input shaft of the second unit 106 is. On the second mounting element 134 are a third and a fourth clutch arm 140 . 142 formed in the transmission element 130 intervention.

A drive of the second wave 136 (Drive shaft) via a drive wheel 144 , which with a toothing 146 is provided.

The transmission element 130 is on the second mounting element 134 by a securing element 148 secured, this fuse element 148 as a safety pin 150 is trained. The locking pin 150 which is circular in cross section and transverse to the longitudinal axes of the first and second shaft 114 . 36 extends is on the second mounting element 134 secured.

Together, the first and the second mounting element 120 . 134 , the transmission element 130 and the fuse element 148 a particularly preferred embodiment of an accessory coupling according to the invention 152 ,

In particular, with the particularly preferred embodiment of an accessory coupling according to the invention 152 it is possible to compensate for a larger radial and angular misalignment. This applies in particular with regard to the ancillary assembly 100 in 1 in which by the location of the first unit on a flywheel housing 110 and by the location of the second aggregate 106 inside a crankcase 112 a very long tolerance path exists. The fuse element 148 not only serves to secure the elements during the pre-assembly, but it also prevents unwanted axial movement of the accessory clutch in the illustrated particularly preferred embodiment 152 towards the power steering pump 104 , wherein the securing element 148 in such a movement on the first waves 114 would strike.

Particular advantages of the particularly preferred embodiment are that a pre-assembly of the accessory clutch 152 Without affecting the production lines is possible that tests without the accessory clutch 152 can be performed, and that a disassembly of the accessory clutch 152 through the flywheel housing 110 is possible through, without it being necessary, the high-pressure pump 108 disassemble.

100

In addition to equipment arrangement

102

first aggregate

104

power steering pump

106

second aggregate

108

high pressure pump

110

flywheel housing

112

crankcase

114

first wave

116

free The End

118

serration

120

first mounting element

122

serration

124

hub area

126

first coupling arm

128

second coupling arm

130

transmission element

132

Oldham

134

second mounting element

136

second wave

138

second input shaft

140

third coupling arm

142

fourth coupling arm

144

drive wheel

146

gearing

148

fuse element

150

safety pin

152

Ancillaries clutch

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 69208657 T2 [0004]

Claims (10)

Auxiliary coupling, with a first and a second mounting element ( 120 . 134 ) for connection to a first or a second shaft ( 114 . 136 ) and a transmission element ( 130 ), characterized in that a securing element ( 148 ) is provided, with which the first and / or the second mounting element ( 120 . 134 ) and the transmission element ( 120 . 134 ) are captively secured together. Ancillary coupling according to claim 1, characterized in that the securing element ( 148 ) is designed as an axial stop. Auxiliary coupling according to claim 1 or 2, characterized in that the securing element ( 148 ) as a safety pin ( 150 ) is formed, which preferably on the first or second mounting element ( 120 . 134 ), in particular is pressed into this in mounting holes. An accessory coupling according to one of claims 1 to 3, characterized in that the transmission element ( 130 ) as a cross disk ( 132 ) is formed a cross-slotted coupling. An accessory coupling according to one of claims 1 to 4, characterized in that in the first and / or the second mounting element ( 120 ; 134 ) for connecting the first and the second wave ( 114 . 136 ) Notch payments ( 118 ), in particular spline teeth are formed. Ancillary assembly, with at least a first, a first wave ( 114 ) having first aggregate ( 102 ) and a second wave ( 136 ), the second wave ( 136 ) by means of a coupling to the first shaft ( 114 ) is coupled, characterized in that the clutch as an accessory clutch ( 152 ) is designed according to one of claims 1 to 5. An accessory arrangement according to claim 6, characterized in that the second shaft ( 136 ) as a second input shaft ( 138 ) of a second aggregate ( 106 ) is trained. An accessory arrangement according to claim 6, characterized in that on the second shaft ( 136 ) a drive wheel ( 144 ), in particular a drive wheel ( 144 ) with a toothing ( 146 ) is arranged. Auxiliary device arrangement according to one of claims 6 to 8, characterized in that the first unit ( 102 ) a power steering pump ( 104 ). Auxiliary device arrangement according to one of claims 7 to 9, characterized in that the second unit ( 106 ) one in a crankcase ( 112 ) arranged high-pressure pump ( 108 ).