System, device and method for levelling floors

Abstract

The present invention relates to a system, a device and a method for leveling floor surfaces by means of a floor grinding machine ( 10 ), in which the device comprises a lifting device ( 90 ) for adjusting the height of the floor grinding machine above the floor surface during leveling thereof. The system for leveling floor surfaces by means of the floor grinding machine comprises a laser transmitter ( 60 ) which is operatively connected to at least one laser receiver ( 61 ), which is arranged on the sensing device ( 70 ), and the method for leveling floor surfaces by means of the floor grinding machine is performed in that the laser transmitter ( 60 ) emits a signal which is received by a laser receiver ( 61 ), which is arranged on the sensing device ( 70 ) and the height of which is thereby detected and converted into a possible deviation in the level of the floor surface, the height of the floor grinding machine and hence the removal of the floor surface being adjusted in relation to this possible deviation in the level during leveling of the floor surface.

1 . A device for leveling floor surfaces by means of a floor grinding machine, which comprises a lifting device for adjusting the height of the floor grinding machine above the floor surface during leveling thereof, wherein a sensing device, which is in contact with the floor surface during leveling of the floor surface, is connected to the floor grinding machine in such a way that the sensing device is afforded freedom to move basically perpendicular to the floor surface that is to be leveled and senses the levelness of the floor for interaction with the lifting device when adjusting the height of the floor grinding machine above the floor surface according to the sensing. 
   
   
       2 . The device as claimed in  claim 1 , wherein the freedom of movement of the sensing device in a vertical direction is achieved by means of at least one slide rail, which basically extends perpendicularly to the floor surface that is to be leveled. 
   
   
       3 . The device as claimed in  claim 1 , wherein the sensing device comprises a stand, which is displaceable along the slide rail and which has a first free, lower end in contact with the floor surface via a contact member during leveling thereof. 
   
   
       4 . The device as claimed in  claim 1 , wherein the lifting device comprises a support wheel, which is height-adjustably connected to the floor grinding machine via at least one moveable strut suspension. 
   
   
       5 . The device as claimed in  claim 4 , wherein the strut is a parallel strut. 
   
   
       6 . The device as claimed in  claim 3 , wherein the contact member is at least one spherical roller. 
   
   
       7 . The device as claimed in  claim 3 , wherein the contact member is at least one PCD dome. 
   
   
       8 . The device as claimed in  claim 1 , wherein at least one laser receiver is arranged on the sensing device in such a way that the laser receiver is always at a specific distance from the floor. 
   
   
       9 . The device as claimed in  claim 3 , wherein a laser receiver is arranged at a second, free upper end of the stand. 
   
   
       10 . A system for leveling floor surfaces by means of a floor grinding machine, wherein a laser transmitter is operatively connected to at least one laser receiver, which is arranged on the sensing device according to any one of the preceding claims. 
   
   
       11 . A method for leveling floor surfaces by means of a floor grinding machine, wherein a laser transmitter emits a signal which is received by a laser receiver, which is arranged on the sensing device according to any of the preceding claims and the specific height of which above the floor is thereby detected and converted into a possible deviation in the level of the floor surface, the height of the floor grinding machine being adjusted in relation to this possible deviation in the level during leveling of the floor surface by means of the lifting device according to any one of the preceding claims.