US 12,343,842 B2
Ground leveling grinder
Xinsen Lin, Dongying (CN)
Appl. No. 18/009,112
Filed by Xinsen Lin, Dongying (CN)
PCT Filed May 12, 2021, PCT No. PCT/CN2021/093213
§ 371(c)(1), (2) Date Dec. 8, 2022,
PCT Pub. No. WO2021/254032, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 202010546711.4 (CN), filed on Jun. 15, 2020.
Prior Publication US 2023/0278162 A1, Sep. 7, 2023
Int. Cl. B24B 47/12 (2006.01); B24B 7/18 (2006.01); B24B 41/047 (2006.01)
CPC B24B 47/12 (2013.01) [B24B 7/186 (2013.01); B24B 41/047 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A ground leveling grinder, comprising a main motor connecting disk (1), wherein a circular channel (41) is provided in a vertical center of the disk surface of the main motor connecting disk (1), a driving shaft (4) is vertically provided in the middle section of the circular channel (41), an upper part of the driving shaft (4) is rotatably connected with the main motor connecting disk (1), a hollow shaft sleeve (9) which is rotatable with respect to the driving shaft is sleeved outside the driving shaft (4), a worm gear (3) is fixedly installed at a periphery of the middle section of the hollow shaft sleeve (9), the periphery of the hollow shaft sleeve (9) located at an upper part and a lower part of the worm gear (3) is rotatably connected with the main motor connecting disk (1), a lower surface of the hollow shaft sleeve (9) and an upper surface of a gear box (11) are fixedly installed, a lower part of the main motor connecting disk (1) is provided with a worm box (10), a worm (2) is horizontally installed in the worm box (10), the worm gear (3) is meshed with the worm (2), a second motor (17) is installed on the worm box (10), the second motor (17) drives the worm (2) to rotate, an upper end of the driving shaft (4) is provided with a blind hole (5), a first motor (16) is installed on an upper surface of the main motor connecting disk (1), an output shaft of the first motor (16) is installed in the blind hole (5), a driving gear (13) is coaxially fixed at a lower end of the driving shaft (4), a periphery of the driving shaft (4) located at an upper part and lower part of the driving gear (13) is rotatably connected with the gear box (11), the driving gear (13) is meshed with an intermediate gear (14), a middle shaft of the intermediate gear (14) is rotatably connected with the gear box (11), the intermediate gear (14) is meshed with a driven gear (15), a middle shaft of the driven gear (15) is rotatably connected with the gear box (11), and a grinding disk (12) is installed on an output shaft of the driven gear (15).