Walk-behind floor scraper machine
A walk-behind floor scraper machine for removing floor covering from a floor surface is disclosed. In one aspect, the machine includes a base frame, an electric motor secured to the base frame, and a scraper assembly movably secured to the base frame and driven by the electric motor. The machine also includes a rear wheel arrangement including a pair of wheels having a rotational axis. In one aspect, the machine includes a hydraulic circuit with a hydraulic pump driven by the electric motor and a hydraulic motor powered by the hydraulic pump. The hydraulic motor has a drive axle coupled to the wheels, wherein the drive axle is coaxially aligned with the rotational axis. In one aspect, the machine can include a hydraulic tank-frame integral to the chassis of the machine that simultaneously stores hydraulic fluid and structurally supports the hydraulic motor.
1. A walk-behind floor scraper machine for removing floor covering from a floor surface; the walk-behind floor scraper machine comprising:
a) a base frame;
b) an electric motor secured to the base frame;
c) a scraper assembly movably secured to the base frame and driven by the electric motor;
d) a hydraulic pump driven by the electric motor;
e) a rear wheel arrangement including a pair of wheels having a rotational axis;
f) a hydraulic motor for driving at least one of the wheels, the hydraulic motor being powered by the hydraulic pump;
g) a tank-frame assembly to which the hydraulic motor is mounted, the tank-frame assembly including an interior volume for storing hydraulic fluid of the hydraulic circuit, the tank-frame being connected to the base frame; and
wherein the base frame includes a first projection and a second projection that extend into corresponding openings of the tank-frame assembly, wherein the base frame is welded to the tank-frame assembly at the location of the first and second projections.
2. The walk-behind floor scraper machine of claim 1 , further including a foldable handle assembly mounted to the tank-frame assembly.
3. The walk-behind floor scraper machine of claim 1 , wherein the tank-frame assembly includes a first part having a first end wall extending between a first pair of sidewalls and a second part having a second end wall extending between a second pair of sidewalls, and wherein the interior volume is defined by the first and second end walls and the first and second pair of sidewalls.
4. The walk-behind floor scraper machine of claim 3 , wherein the hydraulic motor is mounted to the first pair of sidewalls of the tank-frame assembly first part.
5. The walk-behind floor scraper machine of claim 4 , wherein each of the first pair of sidewalls includes a recessed portion for receiving and supporting the hydraulic motor.
6. The walk-behind floor scraper of claim 1 , wherein the hydraulic motor has a drive axle coupled to each of the pair of wheels, wherein the drive axle is coaxially aligned with a rotational axis of the pair of wheels.
7. The walk-behind floor scraper machine of claim 6 , wherein the drive axle includes a pair of coaxially aligned and interconnected drive axles extending into the hydraulic motor.
8. The walk-behind floor scraper machine of claim 7 , wherein the drive axle is directly coupled to each of the pair of wheels.
9. A walk-behind floor scraper machine for removing floor covering from a floor surface; the walk-behind floor scraper machine comprising:
a) a base frame;
b) an electric motor secured to the base frame;
c) a scraper assembly movably secured to the base frame and driven by the electric motor;
d) a hydraulic pump driven by the electric motor;
e) a rear wheel arrangement including a pair of wheels having a rotational axis;
f) a hydraulic motor for driving at least one of the wheels, the hydraulic motor being powered by the hydraulic pump;
g) a tank-frame assembly to which the hydraulic motor is mounted, the tank-frame assembly including an interior volume for storing hydraulic fluid of the hydraulic circuit, the tank-frame being connected to the base frame; the tank-frame assembly including a first part having a first end wall extending between a first pair of sidewalls and a second part having a second end wall extending between a second pair of sidewalls, and the interior volume being defined by the first and second end walls and the first and second pair of sidewalls; and
wherein the hydraulic motor is mounted to the first pair of sidewalls of the tank-frame assembly first part.
10. The walk-behind floor scraper machine of claim 9 , wherein the base frame member is welded to the tank-frame assembly.
11. The walk-behind floor scraper machine of claim 9 , wherein the base frame includes a first projection and a second projection that extend into corresponding openings of the tank-frame assembly, wherein the base frame is connected to the tank-frame assembly at the location of the first and second projections.
12. The walk-behind floor scraper machine of claim 9 , further including a foldable handle assembly mounted to the tank-frame assembly.
13. The walk-behind floor scraper machine of claim 9 , wherein each of the first pair of sidewalls includes a recessed portion for receiving and supporting the hydraulic motor.
14. The walk-behind floor scraper of claim 9 , wherein the hydraulic motor has a drive axle coupled to each of the pair of wheels, wherein the drive axle is coaxially aligned with a rotational axis of the pair of wheels.
15. The walk-behind floor scraper machine of claim 14 , wherein the drive axle includes a pair of coaxially aligned and interconnected drive axles extending into the hydraulic motor.
16. The walk-behind floor scraper machine of claim 15 , wherein the drive axle is directly coupled to each of the pair of wheels.
17. A walk-behind floor scraper machine for removing floor covering from a floor surface; the walk-behind floor scraper machine comprising:
a) a base frame;
b) an electric motor secured to the base frame;
c) a scraper assembly movably secured to the base frame and driven by the electric motor;
d) a hydraulic pump driven by the electric motor;
e) a rear wheel arrangement including a pair of wheels having a rotational axis;
f) a hydraulic motor for driving at least one of the wheels, the hydraulic motor being powered by the hydraulic pump;
g) a tank-frame assembly to which the hydraulic motor is mounted, the tank-frame assembly including an interior volume for storing hydraulic fluid of the hydraulic circuit, the tank-frame being connected to the base frame; and
wherein the base frame includes a first projection and a second projection that extend into corresponding openings of the tank-frame assembly, wherein the base frame is connected to the tank-frame assembly at the location of the first and second projections.
18. The walk-behind floor scraper of claim 17 , wherein the hydraulic motor has a drive axle coupled to each of the pair of wheels, wherein the drive axle is coaxially aligned with a rotational axis of the pair of wheels.
19. The walk-behind floor scraper machine of claim 18 , wherein the drive axle includes a pair of coaxially aligned and interconnected drive axles extending into the hydraulic motor.
20. The walk-behind floor scraper machine of claim 19 , wherein the drive axle is directly coupled to each of the pair of wheels.
21. A walk-behind floor scraper machine for removing floor covering from a floor surface; the walk-behind floor scraper machine comprising:
a) a base frame;
b) an electric motor secured to the base frame;
c) a scraper assembly movably secured to the base frame and driven by the electric motor;
d) a hydraulic pump driven by the electric motor;
e) a rear wheel arrangement including a pair of wheels having a rotational axis;
f) a hydraulic motor for driving at least one of the wheels, the hydraulic motor being powered by the hydraulic pump;
g) a tank-frame assembly to which the hydraulic motor is mounted, the tank-frame assembly including an interior volume for storing hydraulic fluid of the hydraulic circuit, the tank-frame being connected to the base frame; the tank-frame assembly including first and second end walls extending between a plurality of sidewalls; the interior volume being defined by the first and second end walls and the sidewalls; and
wherein the hydraulic motor is mounted to a pair of sidewalls of the tank-frame assembly.
22. The walk-behind floor scraper machine of claim 21 , wherein each of the pair of sidewalls includes a recessed portion for receiving and supporting the hydraulic motor.
23. The walk-behind floor scraper machine of claim 21 , wherein the base frame includes a first projection and a second projection that extend into corresponding openings of the tank-frame assembly, wherein the base frame is connected to the tank-frame assembly at the location of the first and second projections.