EP2561959A1 - Drive assembly for a grinder - Google Patents
Drive assembly for a grinder Download PDFInfo
- Publication number
- EP2561959A1 EP2561959A1 EP11178295A EP11178295A EP2561959A1 EP 2561959 A1 EP2561959 A1 EP 2561959A1 EP 11178295 A EP11178295 A EP 11178295A EP 11178295 A EP11178295 A EP 11178295A EP 2561959 A1 EP2561959 A1 EP 2561959A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hole
- threaded
- transmission
- cover
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
Definitions
- the present invention relates to a drive assembly for a grinder, and more particularly to a drive assembly for a grinder to reduce a motor's load.
- a conventional drive assembly for a grinder has a motor, a driving wheel, multiple driven wheels and a belt.
- the motor has a rotating shaft.
- the driving wheel is securely mounted around the shaft of the motor.
- the belt is engaged the driving wheel and the driven wheels. When the shaft is rotated, the driven wheels are also rotated via the belt to proceed grinding.
- the belt needs to be long enough so that the belt can be connected with all of the driven wheels.
- the long belt does not rotate smoothly and causes energy waste. Consequently, the motor's load increases and the belt is also easily worn.
- the present invention tends to provide a drive assembly for a grinder to mitigate the aforementioned problems.
- the main objective of the invention is to provide a drive assembly for a grinder to reduce a motor's load.
- a drive assembly for a grinder has a housing device, a drive device, multiple transmission devices and multiple grinding devices.
- the drive device has a motor, a driving wheel and a driving band connected with the motor and the driving wheel.
- Each transmission device has a transmission wheel, multiple driven wheels and a transmission band.
- Each transmission band is engaged the driven wheels and the transmission wheel engaged the driving band.
- a first embodiment of a drive assembly for a grinder in accordance with the present invention is mounted on a body 10 and comprises a housing device 20, a drive device 30, multiple transmission devices 40 and multiple grinding devices 50.
- the body 10 may be conventional and detailed description is omitted.
- the housing device 20 is mounted securely on a bottom of the body 10.
- the housing device 20 has an outer housing 20A and an inner housing 20B.
- the outer housing 20A has a top and two threaded holes 24.
- the threaded holes 24 are formed through the top of the outer housing 20A.
- the inner housing 20B is rotatably mounted in the outer housing 20A and has a round upper cover 21, a round lower cover 22 and two positioning bolts 23.
- the upper cover 21 has a top and two cover holes 211.
- the cover holes 211 are respectively located at and formed through two opposite sides of the top of the upper cover 21 and respectively align with the threaded holes 24.
- the lower cover 22 is connected with the upper cover 21.
- the positioning bolts 23 are respectively and detachably mounted through the threaded holes 24 and are respectively inserted into the cover holes 211.
- Each positioning bolt 23 in turn has an inserted rod 231, a first threaded surface 232 and a second threaded surface 233.
- the inserted rod 231 of each positioning bolt 23 is detachably inserted into the cover hole 211 as shown in Fig. 9 .
- the first threaded surface 232 and the second threaded surface 233 of each positioning bolt 23 are selectively screwed with the threaded hole 24.
- each positioning bolt 23 is screwed into the threaded hole 24 and the inserted rod 231 of the positioning bolt 23 is located outside the outer housing 20A. Consequently, the inner housing 20B is disconnected from the outer housing 20A when the drive assembly does not operate or when the inner housing 20B rotates under its own inertia. Accordingly, dust can be prevented from entering the housing device 20 via the threaded holes 24 and the positioning bolts 23 can be prevented from being lost.
- the inserted rods 231 are respectively inserted into the cover holes 211 and the first threaded surfaces 232 are respectively screwed into the threaded holes 24. Therefore, the outer housing 20A is rotated simultaneously with the inner housing 20B via the positioning bolts 23. With the positioning bolts 23 selectively inserted into the cover holes 211, the drive assembly has different grinding modes to be applied to different grounds.
- the drive device 30 has a motor 31, a driving wheel 32, a driving band 33 and a band wheel 34.
- the motor 31 is mounted securely on the top of the housing device 20 and has a rotatable shaft 311 mounted through the upper cover 21.
- the driving wheel 32 is mounted in the housing device 20 and is securely mounted around the shaft 311 of the motor 31.
- the driving band 33 is a belt, is engaged the driving wheel 32 and has an inner surface and an outer surface. Accordingly, the driving wheel 32 and the driving band 33 can be rotated when the shaft 311 is rotated. Additionally, the driving band 33 may be a chain and the driving wheel 32 may be a gear.
- the band wheel 34 is rotatably connected with the upper cover 21, is engaged the outer surface of the driving band 33 and is capable of being slid to tighten or loosen the driving band 33.
- the transmission devices 40 are rotatably mounted in the housing device 20.
- Each transmission device 40 has a transmission wheel 41, multiple driven wheels 42, a transmission band 43 and an adjusting wheel 44.
- transmission devices 40 are implemented.
- Each transmission wheel 41 is engaged the driving band 33.
- the inner surface of the driving band 33 is engaged outer surfaces of the transmission wheels 41.
- the outer surface of the driving band 33 is engaged that of the driving wheel 32. Consequently, the rotated driving band 33 can drive the transmission wheels 41 to rotate.
- each transmission wheel 41 has a first toothed surface 411 and a second toothed surface 412.
- Each first toothed surface 411 is engaged the driving band 33 and has multiple teeth.
- Each second toothed surface 412 has multiple teeth.
- the teeth of each first toothed surface 411 outnumber those of the second toothed surface 412.
- Each transmission wheel 41 has an axle 413 mounted through the bottom of the housing device 20. The difference in teeth number between the first toothed surface 411 and the second toothed surface 412 has a rotational speed reduction effect.
- Each driven wheel 42 has an axial rod 421 mounted through the bottom of the housing device 20.
- the transmission band 43 of each transmission device 40 is located below the driving band 33 and is engaged the transmission wheel 41 and the driven wheels 42 of the transmission device 40.
- three driven wheels 42 of each transmission device 40 are implemented and are defined as two first wheels 42A and a second wheel 42B.
- the second wheel 42B of each transmission device 40 is located between the first wheels 42A of the transmission device 40.
- Each transmission band 43 has an inner surface and an outer surface.
- the inner surface of the transmission band 43 of each transmission device 40 is engaged the first wheels 42A and the transmission wheel 41 of the transmission device 40.
- the outer surface of the transmission band 43 of each transmission device 40 is engaged the second wheel 42B of the transmission device 40. Accordingly, rotational direction of each first wheel 42A is different from that of each second wheel 42B. Consequently, a surface of a work piece, stone for example, can be grinded with two different directions to have a great grinding effect.
- an axis of each second wheel 42B is closer to an axis of the driving wheel 32 than an axis of each first wheel 42A is. With different distances from the driving wheel 32, a grinding area can be increased.
- the transmission wheels 41 are arranged along a circumference at equal intervals.
- the second wheels 42B are arranged along a circumference C2 at equal intervals.
- the first wheels 42A are arranged along a circumference C1 at intervals.
- a line where an axis of each transmission wheel 41 and the axis of the driving wheel 32 are located is defined as a first line L1.
- a line where the axis of each second wheel 42B and the axis of the driving wheel 32 are located is defined as a second line L2.
- An angle between each first line L1 and one of the second lines L2 closest to the first line L1 is 15°(degree). Because the transmission wheels 41, the first wheels 42A and the second wheels 42B are distributed evenly, the drive assembly can grind quite evenly.
- the adjusting wheel 44 of each transmission device 40 is rotatably connected with the upper cover 21, is engaged the outer surface of the transmission band 43 of the transmission device 40 and is capable of being slid to tighten or loosen the transmission band 43.
- the grinding devices 50 are mounted outside the bottom of the housing device 20 and are respectively connected with the transmission devices 40.
- Each grinding device 50 has multiple grinding wheels 51 respectively and securely mounted around the axial rods 421 and the axles 413.
- a second embodiment of the drive assembly for a grinder is substantially the same as the first embodiment except the transmission wheel 41A of each transmission device 40 has a third toothed surface 414A engaged the driving band 33 and the transmission band 43 of the transmission device 40 as shown in Fig. 5 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
Description
- The present invention relates to a drive assembly for a grinder, and more particularly to a drive assembly for a grinder to reduce a motor's load.
- A conventional drive assembly for a grinder has a motor, a driving wheel, multiple driven wheels and a belt. The motor has a rotating shaft. The driving wheel is securely mounted around the shaft of the motor. The belt is engaged the driving wheel and the driven wheels. When the shaft is rotated, the driven wheels are also rotated via the belt to proceed grinding.
- However, the belt needs to be long enough so that the belt can be connected with all of the driven wheels. The long belt does not rotate smoothly and causes energy waste. Consequently, the motor's load increases and the belt is also easily worn.
- To overcome the shortcomings, the present invention tends to provide a drive assembly for a grinder to mitigate the aforementioned problems.
- The main objective of the invention is to provide a drive assembly for a grinder to reduce a motor's load.
- A drive assembly for a grinder has a housing device, a drive device, multiple transmission devices and multiple grinding devices. The drive device has a motor, a driving wheel and a driving band connected with the motor and the driving wheel. Each transmission device has a transmission wheel, multiple driven wheels and a transmission band. Each transmission band is engaged the driven wheels and the transmission wheel engaged the driving band. With two-layers arrangement of the bands, the driving band and the transmission bands are not long and can be rotated smoothly to reduce energy waste. Accordingly, the motor's load is greatly reduced, and lifespans of the driving band and the transmission bands are prolonged.
- Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
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Fig. 1 is a perspective view of a first embodiment of a drive assembly for a grinder in accordance with the present invention, showing the drive assembly is mounted on a body; -
Fig. 2 is an enlarged perspective view of the drive assembly inFig. 1 ; -
Fig. 3 is a perspective view of the drive assembly for a grinder inFig. 1 , wherein an outer housing and a lower cover are removed; -
Fig. 4 is an enlarged side view of a transmission wheel of the drive assembly for a grinder inFig. 1 ; -
Fig. 5 is a side view in partial section of the drive assembly for a grinder inFig. 3 ; -
Fig. 6 is a side view in partial section of the drive assembly for a grinder inFig. 5 , wherein transmission bands are removed; -
Fig. 7 is an enlarged perspective view of a grinding wheel of the drive assembly for a grinder inFig. 1 ; -
Fig. 8 is an enlarged side view in partial section of the drive assembly for a grinder inFig. 1 ; -
Fig. 9 is an operational side view in partial section of the drive assembly for a grinder inFig. 8 , showing a positioning bolt is inserted into a cover hole; and -
Fig. 10 is an enlarged side view of a transmission wheel of a second embodiment of the drive assembly for a grinder in accordance with the present invention. - With reference to
Figs. 1 to 3 , a first embodiment of a drive assembly for a grinder in accordance with the present invention is mounted on abody 10 and comprises ahousing device 20, adrive device 30,multiple transmission devices 40 andmultiple grinding devices 50. - The
body 10 may be conventional and detailed description is omitted. - With reference to
Figs. 1 ,2 ,3 and9 , thehousing device 20 is mounted securely on a bottom of thebody 10. Preferably, thehousing device 20 has anouter housing 20A and aninner housing 20B. Theouter housing 20A has a top and two threadedholes 24. The threadedholes 24 are formed through the top of theouter housing 20A. - The
inner housing 20B is rotatably mounted in theouter housing 20A and has a roundupper cover 21, a roundlower cover 22 and twopositioning bolts 23. Theupper cover 21 has a top and twocover holes 211. Thecover holes 211 are respectively located at and formed through two opposite sides of the top of theupper cover 21 and respectively align with the threadedholes 24. - The
lower cover 22 is connected with theupper cover 21. - With reference to
Fig. 8 , thepositioning bolts 23 are respectively and detachably mounted through the threadedholes 24 and are respectively inserted into thecover holes 211. Eachpositioning bolt 23 in turn has an insertedrod 231, a first threadedsurface 232 and a second threadedsurface 233. The insertedrod 231 of eachpositioning bolt 23 is detachably inserted into thecover hole 211 as shown inFig. 9 . The first threadedsurface 232 and the second threadedsurface 233 of eachpositioning bolt 23 are selectively screwed with the threadedhole 24. - With reference to
Fig. 8 , the second threadedsurface 233 of eachpositioning bolt 23 is screwed into the threadedhole 24 and the insertedrod 231 of thepositioning bolt 23 is located outside theouter housing 20A. Consequently, theinner housing 20B is disconnected from theouter housing 20A when the drive assembly does not operate or when theinner housing 20B rotates under its own inertia. Accordingly, dust can be prevented from entering thehousing device 20 via the threadedholes 24 and thepositioning bolts 23 can be prevented from being lost. - On the contrary, when the
positioning bolts 23 are turned upside down, the insertedrods 231 are respectively inserted into thecover holes 211 and the first threadedsurfaces 232 are respectively screwed into the threadedholes 24. Therefore, theouter housing 20A is rotated simultaneously with theinner housing 20B via thepositioning bolts 23. With thepositioning bolts 23 selectively inserted into thecover holes 211, the drive assembly has different grinding modes to be applied to different grounds. - With reference to
Figs. 1 ,5 and6 , thedrive device 30 has amotor 31, adriving wheel 32, adriving band 33 and aband wheel 34. - The
motor 31 is mounted securely on the top of thehousing device 20 and has arotatable shaft 311 mounted through theupper cover 21. - The
driving wheel 32 is mounted in thehousing device 20 and is securely mounted around theshaft 311 of themotor 31. - The
driving band 33 is a belt, is engaged thedriving wheel 32 and has an inner surface and an outer surface. Accordingly, thedriving wheel 32 and thedriving band 33 can be rotated when theshaft 311 is rotated. Additionally, thedriving band 33 may be a chain and thedriving wheel 32 may be a gear. - The
band wheel 34 is rotatably connected with theupper cover 21, is engaged the outer surface of thedriving band 33 and is capable of being slid to tighten or loosen thedriving band 33. - With reference to
Figs. 3 to 5 , thetransmission devices 40 are rotatably mounted in thehousing device 20. Eachtransmission device 40 has atransmission wheel 41, multiple drivenwheels 42, atransmission band 43 and an adjustingwheel 44. - Preferably, four
transmission devices 40 are implemented. - Each
transmission wheel 41 is engaged thedriving band 33. Preferably, the inner surface of thedriving band 33 is engaged outer surfaces of thetransmission wheels 41. The outer surface of the drivingband 33 is engaged that of thedriving wheel 32. Consequently, the rotated drivingband 33 can drive thetransmission wheels 41 to rotate. - With reference to
Fig. 4 , preferably, eachtransmission wheel 41 has a firsttoothed surface 411 and a secondtoothed surface 412. Each firsttoothed surface 411 is engaged thedriving band 33 and has multiple teeth. Each secondtoothed surface 412 has multiple teeth. The teeth of each firsttoothed surface 411 outnumber those of the secondtoothed surface 412. Eachtransmission wheel 41 has anaxle 413 mounted through the bottom of thehousing device 20. The difference in teeth number between the firsttoothed surface 411 and the secondtoothed surface 412 has a rotational speed reduction effect. - Each driven
wheel 42 has anaxial rod 421 mounted through the bottom of thehousing device 20. - The
transmission band 43 of eachtransmission device 40 is located below the drivingband 33 and is engaged thetransmission wheel 41 and the drivenwheels 42 of thetransmission device 40. Preferably, three drivenwheels 42 of eachtransmission device 40 are implemented and are defined as twofirst wheels 42A and asecond wheel 42B. Thesecond wheel 42B of eachtransmission device 40 is located between thefirst wheels 42A of thetransmission device 40. - Each
transmission band 43 has an inner surface and an outer surface. The inner surface of thetransmission band 43 of eachtransmission device 40 is engaged thefirst wheels 42A and thetransmission wheel 41 of thetransmission device 40. The outer surface of thetransmission band 43 of eachtransmission device 40 is engaged thesecond wheel 42B of thetransmission device 40. Accordingly, rotational direction of eachfirst wheel 42A is different from that of eachsecond wheel 42B. Consequently, a surface of a work piece, stone for example, can be grinded with two different directions to have a great grinding effect. - With further reference to
Fig. 6 , preferably, an axis of eachsecond wheel 42B is closer to an axis of thedriving wheel 32 than an axis of eachfirst wheel 42A is. With different distances from thedriving wheel 32, a grinding area can be increased. - The
transmission wheels 41 are arranged along a circumference at equal intervals. Thesecond wheels 42B are arranged along a circumference C2 at equal intervals. Thefirst wheels 42A are arranged along a circumference C1 at intervals. A line where an axis of eachtransmission wheel 41 and the axis of thedriving wheel 32 are located is defined as a first line L1. A line where the axis of eachsecond wheel 42B and the axis of thedriving wheel 32 are located is defined as a second line L2. An angle between each first line L1 and one of the second lines L2 closest to the first line L1 is 15°(degree). Because thetransmission wheels 41, thefirst wheels 42A and thesecond wheels 42B are distributed evenly, the drive assembly can grind quite evenly. - The adjusting
wheel 44 of eachtransmission device 40 is rotatably connected with theupper cover 21, is engaged the outer surface of thetransmission band 43 of thetransmission device 40 and is capable of being slid to tighten or loosen thetransmission band 43. - With reference to
Figs. 1 and7 , the grindingdevices 50 are mounted outside the bottom of thehousing device 20 and are respectively connected with thetransmission devices 40. Each grindingdevice 50 has multiple grindingwheels 51 respectively and securely mounted around theaxial rods 421 and theaxles 413. - With reference to
Fig. 10 , a second embodiment of the drive assembly for a grinder is substantially the same as the first embodiment except thetransmission wheel 41A of eachtransmission device 40 has a thirdtoothed surface 414A engaged thedriving band 33 and thetransmission band 43 of thetransmission device 40 as shown inFig. 5 . - From the above description, it is noted that the present invention has the following advantages:
- 1.reducing load of the motor 31:
- With two-layer arrangement of the bands, the driving
band 33 and thetransmission bands 43 are not long and can be rotated smoothly to reduce energy waste. Accordingly, the load of themotor 31 is greatly reduced, lifespans of the drivingband 33 and thetransmission bands 43 are prolonged and maintenance expense is reduced.
- With two-layer arrangement of the bands, the driving
- 2. Great grinding effect:
- Because the rotational direction of each
first wheel 42A is different from that of eachsecond wheel 42B, a work piece can be grinded with two opposite directions and a great grinding effect is enhanced.
- Because the rotational direction of each
- 3. Enlarged grinding area:
- The
second wheels 42B and thefirst wheels 42A are located at different circumferences C1,C2, so the grinding area is increased.
- The
- 4. Application to different grounds:
- Because the
positioning bolts 23 are selectively inserted into the cover holes 211, different grinding modes of the drive assembly can be applied to different grounds and this is greatly useful. Moreover, the positioningbolts 23 can be prevented from being lost and dust is also prevented from entering thehousing device 20.
- Because the
- Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (15)
- A drive assembly for a grinder comprising, characterized in that:a housing device (20) having a top and a bottom;a drive device (30) connected with the housing device (20) and having
a motor (31) mounted securely on the top of the housing device (20) and having a rotatable shaft (311) mounted through the top of the housing device (20);
a driving wheel (32) mounted in the housing device (20) and securely mounted around the shaft of the motor (31); and
a driving band (33) engaged the driving wheel (32);multiple transmission devices (40) rotatably mounted in the housing device (20), each transmission device (40) having
a transmission wheel (41,41A) engaged the driving band (33); multiple driven wheels (42), each driven wheel (42) having an axial rod (421) mounted through the bottom of the housing device (20); and
a transmission band (43) engaged the transmission wheel (41) and the driven wheels (42); andmultiple grinding devices (50) mounted outside the bottom of the housing device (20) and respectively connected with the transmission devices (40), each grinding device (50) having multiple grinding wheels (51) respectively and securely mounted around the axial rods (421) of the transmission devices (40). - The drive assembly for a grinder as claimed in claim 1, wherein
the transmission wheel (41) of each transmission device has
a first toothed surface (411) engaged the driving band (33) and having multiple teeth; and
a second toothed surface (412) engaged the transmission band of the transmission device (43) and having multiple teeth, wherein the teeth of the first toothed surface (411) outnumber those of the second toothed surface (412). - The drive assembly for a grinder as claimed in claim 2, wherein three driven wheels (42) of each transmission device (40) are implemented and are defined as
two first wheels (42A); and
a second wheel (42B) located between the first wheels (42A), wherein an axis of each second wheel (42B) is closer to an axis of the driving wheel (32) than an axis of each first wheel (42A) is. - The drive assembly for a grinder as claimed in claim 3, wherein
the driving band (33) has
an inner surface engaged outer surfaces of the transmission wheels (41); and
an outer surface engaged that of the driving wheel (32); and the transmission band (43) of each transmission device has
an inner surface engaged the first wheels (42A) and the transmission wheel (41) of the transmission device (40); and
an outer surface engaged the second wheel (42B) of the transmission device (40). - The drive assembly for a grinder as claimed in claim 4, wherein
the transmission wheels (41) are arranged along a circumference at equal intervals;
the second wheels (42B) are arranged along a circumference at equal intervals;
the first wheels (41) are arranged along a circumference at intervals; a line where an axis of each transmission wheel (41) and the axis of the driving wheel (32) are located is defined as a first line (L1);
a line where the axis of each second wheel (42B) and the axis of the driving wheel (32) are located is defined as a second line (L2); and
an angle between each first line (L1) and one of the second lines (L2) closest to the first line (L1) is 15°(degree). - The drive assembly for a grinder as claimed in claim 5, wherein
each transmission wheel (41) has an axle (413) mounted through the bottom of the housing device (20); and
one of the grinding wheels (51) of each grinding device (50) is securely mounted around the axle (413) of the transmission device (41). - The drive assembly for a grinder as claimed in claim 6, wherein four transmission devices (40) are implemented.
- The drive assembly for a grinder as claimed in claim 1, wherein
the housing device (20) has
an outer housing (20A) having
a top; and
a threaded hole (24) formed through the top of the outer housing (20A);
an inner housing (20B) rotatably mounted in the outer housing (20A) and having
an upper cover (21) having
a top; and
a cover hole (211) formed through the top of the upper cover (21) and aligning with the threaded hole (24) of the outer housing (20A);
a lower cover (22) connected with the upper cover (21);
and
a positioning bolt (23) detachably connected with the threaded hole (24) and the cover hole (211) and in turn having
an inserted rod (231) detachably inserted into the cover hole (211);
a first threaded surface; and
a second threaded surface (232), wherein the first threaded surface and the second threaded surface are selectively screwed with the threaded hole (24). - The drive assembly for a grinder as claimed in claim 2, wherein the housing device (20) has
an outer housing (20A) having
a top; and
a threaded hole (24) formed through the top of the outer housing (20A);
an inner housing (20B) rotatably mounted in the outer housing (20A) and having
an upper cover (21) having
a top; and
a cover hole (211) formed through the top of the upper cover (21) and aligning with the threaded hole (24) of the outer housing (20A);
a lower cover (22) connected with the upper cover (21);
and
a positioning bolt (23) detachably connected with the threaded hole (24) and the cover hole (211) and in turn having
an inserted rod (231) detachably inserted into the cover hole (211);
a first threaded surface; and
a second threaded surface (232), wherein the first threaded surface and the second threaded surface are selectively screwed with the threaded hole (24). - The drive assembly for a grinder as claimed in claim 3, wherein the housing device (20) has
an outer housing (20A) having
a top; and
a threaded hole (24) formed through the top of the outer housing (20A);
an inner housing (20B) rotatably mounted in the outer housing (20A) and having
an upper cover (21) having
a top; and
a cover hole (211) formed through the top of the upper cover (21) and aligning with the threaded hole (24) of the outer housing (20A);
a lower cover (22) connected with the upper cover (21);
and
a positioning bolt (23) detachably connected with the threaded hole (24) and the cover hole (211) and in turn having
an inserted rod (231) detachably inserted into the cover hole (211);
a first threaded surface; and
a second threaded surface (232), wherein the first threaded surface and the second threaded surface are selectively screwed with the threaded hole (24). - The drive assembly for a grinder as claimed in claim 4, wherein the housing device (20) has
an outer housing (20A) having
a top; and
a threaded hole (24) formed through the top of the outer housing (20A);
an inner housing (20B) rotatably mounted in the outer housing (20A) and having
an upper cover (21) having
a top; and
a cover hole (211) formed through the top of the upper cover (21) and aligning with the threaded hole (24) of the outer housing (20A);
a lower cover (22) connected with the upper cover (21);
and
a positioning bolt (23) detachably connected with the threaded hole (24) and the cover hole (211) and in turn having
an inserted rod (231) detachably inserted into the cover hole (211);
a first threaded surface; and
a second threaded surface (232), wherein the first threaded surface and the second threaded surface are selectively screwed with the threaded hole (24). - The drive assembly for a grinder as claimed in claim 5, wherein the housing device (20) has
an outer housing (20A) having
a top; and
a threaded hole (24) formed through the top of the outer housing (20A);
an inner housing (20B) rotatably mounted in the outer housing (20A) and having
an upper cover (21) having
a top; and
a cover hole (211) formed through the top of the upper cover (21) and aligning with the threaded hole (24) of the outer housing (20A);
a lower cover (22) connected with the upper cover (21);
and
a positioning bolt (23) detachably connected with the threaded hole (24) and the cover hole (211) and in turn having
an inserted rod (231) detachably inserted into the cover hole (211);
a first threaded surface; and
a second threaded surface (232), wherein the first threaded surface and the second threaded surface are selectively screwed with the threaded hole (24). - The drive assembly for a grinder as claimed in claim 6, wherein the housing device (20) has
an outer housing (20A) having
a top; and
a threaded hole (24) formed through the top of the outer housing (20A);
an inner housing (20B) rotatably mounted in the outer housing (20A) and having
an upper cover (21) having
a top; and
a cover hole (211) formed through the top of the upper cover (21) and aligning with the threaded hole (24) of the outer housing (20A);
a lower cover (22) connected with the upper cover (21);
and
a positioning bolt (23) detachably connected with the threaded hole (24) and the cover hole (211) and in turn having
an inserted rod (231) detachably inserted into the cover hole (211);
a first threaded surface; and
a second threaded surface (232), wherein the first threaded surface and the second threaded surface are selectively screwed with the threaded hole (24). - The drive assembly for a grinder as claimed in claim 7, wherein the housing device (20) has
an outer housing (20A) having
a top; and
a threaded hole (24) formed through the top of the outer housing (20A);
an inner housing (20B) rotatably mounted in the outer housing (20A) and having
an upper cover (21) having
a top; and
a cover hole (211) formed through the top of the upper cover (21) and aligning with the threaded hole (24) of the outer housing (20A);
a lower cover (22) connected with the upper cover (21);
and
a positioning bolt (23) detachably connected with the threaded hole (24) and the cover hole (211) and in turn having
an inserted rod (231) detachably inserted into the cover hole (211);
a first threaded surface; and
a second threaded surface (232), wherein the first threaded surface and the second threaded surface are selectively screwed with the threaded hole (24). - The drive assembly for a grinder as claimed in claim 1, wherein the transmission wheel (41A) of each transmission device has a third toothed surface (413) engaged the driving band (33) and the transmission band of the transmission device (43).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP20110178295 EP2561959B1 (en) | 2011-08-22 | 2011-08-22 | Drive assembly for a grinder |
Applications Claiming Priority (1)
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EP20110178295 EP2561959B1 (en) | 2011-08-22 | 2011-08-22 | Drive assembly for a grinder |
Publications (2)
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EP2561959A1 true EP2561959A1 (en) | 2013-02-27 |
EP2561959B1 EP2561959B1 (en) | 2013-10-09 |
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Family Applications (1)
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EP20110178295 Not-in-force EP2561959B1 (en) | 2011-08-22 | 2011-08-22 | Drive assembly for a grinder |
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Cited By (7)
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CN106181724A (en) * | 2016-09-26 | 2016-12-07 | 安阳合力创科冶金新技术股份有限公司 | A kind of reinforcing bar descaling mill |
CN107971924A (en) * | 2017-12-18 | 2018-05-01 | 深圳远荣智能制造股份有限公司 | A kind of bistrique transmission device |
CN110076663A (en) * | 2019-05-07 | 2019-08-02 | 常州市英杰工具有限公司 | Polydisc wax-polishing machine |
KR102293991B1 (en) * | 2021-01-22 | 2021-08-27 | (유) 천진기업 | Bidirectional drive type die surface reconstitution head for the pellet cokes forming die |
US11440155B2 (en) | 2016-06-03 | 2022-09-13 | Husqvarna Ab | Floor grinding machine, method of operating floor grinding machine |
US11628533B2 (en) | 2016-06-03 | 2023-04-18 | Husqvarna Ab | Floor grinding machine, handle for floor grinding machine and method of setting a handle for a floor grinding machine |
US11633831B2 (en) | 2016-06-03 | 2023-04-25 | Husqvarna Ab | Grinding head for floor grinding machine comprising at least one belt pulley, floor grinding machines and methods |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US11440155B2 (en) | 2016-06-03 | 2022-09-13 | Husqvarna Ab | Floor grinding machine, method of operating floor grinding machine |
US11628533B2 (en) | 2016-06-03 | 2023-04-18 | Husqvarna Ab | Floor grinding machine, handle for floor grinding machine and method of setting a handle for a floor grinding machine |
US11633831B2 (en) | 2016-06-03 | 2023-04-25 | Husqvarna Ab | Grinding head for floor grinding machine comprising at least one belt pulley, floor grinding machines and methods |
US11701751B2 (en) | 2016-06-03 | 2023-07-18 | Husqvarna Ab | Grinding head for floor grinding machine and method of assembling a grinding head, setting a belt tensioner, servicing, assembling or disassembling a belt pulley for a floor grinding machine |
CN106181724A (en) * | 2016-09-26 | 2016-12-07 | 安阳合力创科冶金新技术股份有限公司 | A kind of reinforcing bar descaling mill |
CN107971924A (en) * | 2017-12-18 | 2018-05-01 | 深圳远荣智能制造股份有限公司 | A kind of bistrique transmission device |
CN110076663A (en) * | 2019-05-07 | 2019-08-02 | 常州市英杰工具有限公司 | Polydisc wax-polishing machine |
CN110076663B (en) * | 2019-05-07 | 2024-04-19 | 常州市英杰工具有限公司 | Multi-disc waxing machine |
KR102293991B1 (en) * | 2021-01-22 | 2021-08-27 | (유) 천진기업 | Bidirectional drive type die surface reconstitution head for the pellet cokes forming die |
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