Clamping Device And Method For Fixing A Drive Shaft In A Stationary Manner

Abstract

A clamping device for fixing a drive shaft of a delivery pump inside a rising pipe of a borehole for the delivery of a delivery fluid. The clamping device includes a housing with a first passage bore, through which the drive shaft of the delivery pump passes. The clamping device also includes at least a second lateral passage bore, which meets the first passage bore orthogonally, wherein a mechanically acting clamping means is accommodated and/or guided in the second passage bore, by means of which clamping means the drive shaft of the delivery pump can be fixed axially and/or radially in the housing of the clamping device. A method for the spatial fixing of a drive shaft of a delivery pump in a stationary manner in a rising pipe assigned to a borehole is also disclosed.

1 . A clamping device for fixing a drive shaft of a delivery pump inside a rising pipe of a borehole for the delivery of a delivery fluid, wherein the clamping device comprises a housing with a first passage bore, through which the drive shaft of the delivery pump passes, with at least a second lateral passage bore, which meets the first passage bore orthogonally, wherein a mechanically acting clamping means is accommodated and/or guided in the second passage bore, with which clamping means the drive shaft of the delivery pump can be fixed axially and/or radially in the housing of the clamping device. 
     
     
         2 . The clamping device according to  claim 1 , wherein the drive shaft can be fixed in a stationary manner by the clamping means. 
     
     
         3 . The clamping device  1  according to  claim 1 , wherein the clamping means comprises a first and a second clamping mechanism which are each disposed lying opposite one another in the second passage bore and are each displaceable orthogonal to a longitudinal axis of the drive shaft and wherein a stop is assigned to the first clamping mechanism stop limiting the displacement path of the first clamping mechanism in the direction of the drive shaft, and wherein a clamping force can be applied to the drive shaft by means of the second clamping mechanism. 
     
     
         4 . The clamping device according to  claim 3 , wherein the first clamping mechanism can be brought into at least a first working position or into at least a second working position, wherein in the first working position no operative connection is created between the first clamping mechanism and the drive shaft and wherein in the first working position delivery fluid can be conducted through the clamping device, wherein in the second working position the first clamping mechanism is pushed so far inside the second passage bore in the direction of the first passage bore that the first clamping mechanism lies adjacent to the stop and the drive shaft and centres the position of the drive shaft inside the rising pipe in the clamping device. 
     
     
         5 . The clamping device according to  claim 3 , wherein the second clamping mechanism can be brought into at least a first working position or into at least a second working position, wherein in the first working position no operative connection is created between the second clamping mechanism and the drive shaft and delivery fluid can be conducted through the clamping device and wherein in the second working position a clamping force is applied to the drive shaft by the second clamping mechanism. 
     
     
         6 . The clamping device according to  claim 1 , wherein the clamping means comprises sealing elements for sealing the drive shaft with respect to the rising pipe. 
     
     
         7 . The clamping device according to  claim 1 , wherein in a first operating position of the clamping means the first and the second clamping mechanism are each disposed in their first working position and delivery fluid can be conducted through the clamping device, wherein in the second operating position of the clamping means the first and the second clamping mechanism are each disposed in their second working position and the drive shaft inside the clamping device is clamped with respect to the rising pipe, in particular wherein the drive shaft in the second operating position inside the clamping device is secured against twisting by the clamping means and/or wherein the drive shaft in the second operating position inside the clamping device is secured against an axial displacement by the clamping means and/or wherein the drive shaft in the second operating position inside the clamping device is sealed with respect to the rising pipe, so that no delivery fluid rises. 
     
     
         8 . The clamping device according to  claim 3 , wherein the second clamping mechanism can be operated manually and/or wherein a hydraulic force-increasing device for generating the clamping force and/or a working pressure is assigned to the second clamping. 
     
     
         9 . The clamping device according to  claim 1 , wherein the clamping device comprises two further lateral passage bores, which each meet the first passage bore orthogonally and are preferably disposed in different positions along a longitudinal axis of the first passage bore. 
     
     
         10 . The clamping device according to  claim 9 , wherein a further clamping means and a sealing means are disposed in the two further lateral passage bores, wherein the further clamping means comprises two clamping mechanisms disposed lying opposite one another, in particular a first clamping mechanisms with a stop for the spatial centring of the drive shaft and a second clamping mechanism for applying the clamping force or a working pressure to the drive shaft and wherein the sealing means comprises two sealing mechanism disposed lying opposite one another for sealing the drive shaft with respect to the rising pipe, in particular wherein a force can be applied to the drive shaft in a defined direction by means of each of the two clamping means and wherein the directions are orientated differently. 
     
     
         11 . The clamping device according to  claim 3 , wherein the first clamping mechanism and/or the second clamping mechanism comprises a first internal space with at least one inclined side wall, wherein the at least one inclined side wall inside the clamping device runs from top to bottom in the direction of the first passage bore, wherein at least two ball-shaped clamping elements are disposed for the most part one upon the other in the first internal space and/or wherein the first clamping mechanism comprises a second internal space, which is disposed at least partially around a contact face at the free end of the first and/or the second clamping mechanism and in which at least two ball-shaped clamping elements are disposed for the most part beside one another in a plane at least for the most part orthogonal to the longitudinal axis of the first passage bore, by means of which the drive shaft be clamped and a rotational movement of the drive shaft can thus be blocked. 
     
     
         12 . The clamping device according to  claim 1 , wherein the clamping device comprises an upper fixing region for the fixing to a drive head comprising a drive means and a lower fixing region for the fixing to the borehole and/or the rising price, in particular wherein the lower and/or the upper fixing region is constituted as an interchangeable flange with a modular design, wherein the lower flange device comprises means for the steplessly adjustable positioning of the clamping device on the borehole. 
     
     
         13 . A method for the spatial fixing of a drive shaft of a delivery pump in a stationary manner in a rising pipe assigned to a borehole, wherein at least one clamping device is disposed between the borehole and a drive head assigned to the drive shaft, wherein delivery fluid is conducted through the clamping device in a first operating position of the clamping device, characterised in that, in a second operating position of the clamping device, a first compressive or clamping force is applied to the drive shaft by means of the clamping device, said compressive or clamping force preventing the drive shaft from twisting radially and/or
 a second compressive or clamping force is applied to the drive shaft by means of the clamping device, said compressive or clamping force fixing the drive shaft axially.   
     
     
         14 . The method according to  claim 13 , wherein
 in the second operating position of the clamping device the drive shaft is sealed with respect to the rising pipe in such a way that no delivery medium rises upwards   AND   the sealing of the drive shaft with respect to the rising pipe takes place by means of sealing means of the clamping device AND   the respective compressive or clamping force for the radial and/or axial clamping of the drive shaft is applied by means of at least one clamping means   OR   wherein the sealing of the drive shaft with respect to the rising pipe and the application of the respective compressive or clamping force for the radial and/or axial clamping of the drive shaft takes place by means of a sealing and clamping means.   
     
     
         15 . The method according to  claim 13 , wherein the sealing and clamping takes place by means of a clamping device for fixing a drive shaft-of a delivery pump inside a rising pipe of a borehole for the delivery of a delivery fluid, wherein the clamping device comprises a housing with a first passage bore, through which the drive shaft of the delivery pump passes, with at least a second lateral passage bore, which meets the first passage bore orthogonally, wherein a mechanically acting clamping means is accommodated and/or guided in the second passage bore, with which clamping means the drive shaft of the delivery pump can be fixed axially and/or radially in the housing of the clamping device and wherein the first clamping mechanism is pushed inside the second passage bore in the direction of the first passage bore and is stopped at a stop inside the clamping device and wherein the compressive or clamping force is applied to the drive shaft in a controlled manner by means of the second clamping mechanism. 
     
     
         16 . The clamping device according to  claim 2 , wherein the clamping means comprises a first and a second clamping mechanism, which are each disposed lying opposite one another in the second passage bore and are each displaceable orthogonal to a longitudinal axis of the drive shaft and wherein a stop is assigned to the first clamping mechanism, said stop limiting the displacement path of the first clamping mechanism in the direction of the drive shaft, and wherein a clamping force can be applied to the drive shaft by means of the second clamping mechanism. 
     
     
         17 . The clamping device according to  claim 4 , wherein the second clamping mechanism can be brought into at least a first working position or into at least a second working position, wherein in the first working position no operative connection is created between the second clamping mechanism and the drive shaft and delivery fluid can be conducted through the clamping device and wherein in the second working position a clamping force is applied to the drive shaft by the second clamping mechanism. 
     
     
         18 . The method according to  claim 14 , wherein the sealing and clamping takes place by means of a clamping device for fixing a drive shaft of a delivery pump inside a rising pipe of a borehole for the delivery of a delivery fluid, wherein the clamping device comprises a housing with a first passage bore, through which the drive shaft of the delivery pump passes, with at least a second lateral passage bore, which meets the first passage bore orthogonally, wherein a mechanically acting clamping means is accommodated and/or guided in the second passage bore, with which clamping means the drive shaft of the delivery pump can be fixed axially and/or radially in the housing of the clamping device and wherein the first clamping mechanism is pushed inside the second passage bore in the direction of the first passage bore and is stopped at a stop inside the clamping device and wherein the compressive or clamping force is applied to the drive shaft in a controlled manner by means of the second clamping mechanism.