Grinding disk of ground grinding machine driven by motor

Abstract

The present disclosure relates to a grinding disk of a ground grinding machine driven by a motor, including a chassis, wherein a working surface of the chassis is a separate flat disk, fixed devices are arranged on a lower surface of the chassis, and grinding blocks are fixedly installed through the fixed devices. Compared with the prior art, the present disclosure has the following advantages: the size of the grinding working surface of the separate grinding disk may be set freely by changing the arrangement mode of the grinding blocks; so as to reduce the starting torque and achieve the buffer effect; and mounting grooves may adopt the circumferential alternate arrangement or the radial alternate arrangement, so that the installed grinding blocks may compensate for each other, and the uniform and complete grinding is ensured while reducing the quantity of the grinding blocks.

What is claimed is: 
     
         1 . A grinding disk of a ground grinding machine driven by a motor, comprising a chassis, wherein a working surface of the chassis is a separate flat disk, the width of the working surface of the chassis is above 500 mm, the motor is a vertical shaft direct-drive motor, the direct-drive motor is directly or indirectly connected to the chassis, fixed devices are arranged on a lower surface of the chassis, and abrasive is fixedly installed through the fixed devices. 
     
     
         2 . The grinding disk of the ground grinding machine driven by the motor according to  claim 1 , wherein the abrasive is metal grinding blocks, the fixed devices are mounting grooves, and the metal grinding blocks are embedded and mounted in the mounting grooves. 
     
     
         3 . The grinding disk of the ground grinding machine driven by the motor according to  claim 2 , wherein a plurality of mounting grooves are arranged in a circumferential direction around the chassis, and a plurality of cycles of mounting grooves are arranged around the chassis. 
     
     
         4 . The grinding disk of the ground grinding machine driven by the motor according to  claim 3 , wherein each cycle of adjacent mounting grooves are alternately arranged along the circumferential direction. 
     
     
         5 . The grinding disk of the ground grinding machine driven by the motor according to  claim 3 , wherein each cycle of adjacent mounting grooves are alternately arranged along a radial direction. 
     
     
         6 . The grinding disk of the ground grinding machine driven by the motor according to  claim 1 , wherein the abrasive is resin grinding blocks or ceramic grinding blocks, a floss layer with a magic stick is arranged at the back of each resin grinding block or each ceramic grinding block, each fixed device is a delineating layer of the magic stick, and the resin grinding blocks or ceramic grinding blocks are adhered to each other through the delineating layer and the floss layer of the magic stick and then fixed on a lower surface of the chassis. 
     
     
         7 . The grinding disk of the ground grinding machine driven by the motor according to  claim 1 , wherein the abrasive is animal hair mats or felts, each fixed device is a delineating device, and the animal hair mats or the felts are fixed on the lower surface of the chassis through the delineating device. 
     
     
         8 . The grinding disk of the ground grinding machine driven by the motor according to  claim 1 , further comprising an upper disk and a middle disk, wherein a center of the upper disk is fixedly connected to an output shaft of the direct-drive motor along a circumferential direction, a center of the middle disk is fixedly connected to the upper disk along the circumferential direction, and a center of the chassis is fixed on the middle disk along the circumferential direction. 
     
     
         9 . The grinding disk of the ground grinding machine driven by the motor according to  claim 8 , wherein a lower end face of the output shaft of the vertical shaft direct-drive motor is provided with an upper disk bolt and screw hole, the upper disk is of a two-step circular table shape, an output shaft mounting stand matching with the output shaft is downwards arranged at a central part of an upper surface of an upper-step circular table, an upper disk shaft protruding downwards is arranged at a central part of a lower surface of a lower-step circular table, a plurality of upper disk bolt mounting through holes penetrating up and down are circumferentially arranged at the lower-step circular table outside the upper disk shaft, the upper disk passes through the upper disk bolt mounting through hole through the upper disk bolt so as to be in threaded connection with the upper disk bolt and screw hole at the output shaft end face of the direct-drive motor, and a plurality of upper disk connecting through holes penetrating up and down are circumferentially arranged at a part closing to an edge of the lower-step circular table;
 the middle disk is an inverted disk shape with a raised central position, an upper disk shaft mounting stand matching with the upper disk shaft is downwards arranged at a raised upper surface center of the middle disk, a middle disk mounting hole corresponding to the upper disk connecting through hole is arranged in a circumferential direction at a position where the raised upper surface of the middle disk closes to the edge par, and a plurality of middle disk connecting through holes penetrating up and down are arranged at a circumferential direction at a position where the middle disk closes to the edge part; and   the chassis is a circular flat disk of which a central part is provided with a chassis central through hole, the size of the chassis central through hole matches with that of the lower-step circular table mutually, and a plurality of lower disk mounting holes penetrating up and down are circumferentially arranged at a position where the chassis corresponds to the middle disk connecting through holes.   
     
     
         10 . The grinding disk of the ground grinding machine driven by the motor according to  claim 9 , wherein the elastic damping rubber ring is arranged in the middle disk connecting through holes.