CN111531482A

CN111531482A - Grinding disc of motor-driven ground grinding machine

Info

Publication number: CN111531482A
Application number: CN202010421226.4A
Authority: CN
Inventors: 林鑫森
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-08-14
Also published as: WO2021233089A1; US20230173634A1

Abstract

The invention relates to a grinding disc of a motor-driven ground grinder, which comprises a chassis, wherein the working surface of the chassis is a single flat disc, the width of the working surface of the chassis is more than 500mm, the motor is a vertical shaft direct drive motor, the direct drive motor is directly or indirectly connected with the chassis, a fixing device is arranged on the lower surface of the chassis, and a grinding block is fixedly arranged on the fixing device. The size of the grinding working surface can be freely set by changing the arrangement mode of the modules. The high-torque direct-drive motor is adopted for driving, so that the torque is large; grinding and flattening the ground; the grinding block can be disassembled and replaced, and the maintenance is quick and convenient; the middle disc is connected with the chassis by an elastic damping rubber ring, so that the starting torque is reduced, and the buffering effect is achieved; the mounting grooves can be arranged alternately in the circumferential direction or alternately in the radial direction, so that the mounted grinding blocks are mutually compensated, and the grinding is ensured to be uniform and comprehensive while the number of the grinding blocks is reduced.

Description

Grinding disc of motor-driven ground grinding machine

Technical Field

The invention relates to a ground grinding construction device, in particular to a grinding disc of a ground grinding machine driven by a motor.

Background

Since the invention of cement in the 18 th century, a grinder has been widely used in various construction sites as a device for ground grinding treatment, which can effectively grind terrazzo, a concrete surface layer, an epoxy mortar layer, an old epoxy ground, and the like.

In present building construction, more and more rely on the machine of grinding, the grinding machine mainly is by the abrasive disc with the ground that needs to handle polish level. The conventional grinding machine is limited by the power of the motor, a large-plane grinding disc which cannot be driven is usually not more than 200mm in diameter, but in order to improve the efficiency, a plurality of groups of small grinding disc combinations are mostly adopted, for example, the grinding disc of the grinding machine disclosed in the Chinese patent CN209273167U is composed of a plurality of small grinding discs and is driven by connecting a belt, the grinding machine adopts a driving motor which is commonly used at present, the plurality of small grinding discs are driven to operate in the range which can be driven by the motor, when large friction resistance is met, the belt can slip and protect the motor, however, along with the development of science and technology, more and more high-end science and technology are applied to the ground grinding machine, even if a technical person in the field has the motor with high power, the original combined structure of the plurality of groups of small grinding discs is still adopted, the structure of the plurality of groups of small grinding discs is complex, the maintenance is troublesome, and the grinding area, the efficiency is low, more importantly, because the horizontal installation heights of a plurality of small grinding discs cannot be completely consistent, each small grinding disc independently grinds the ground, the uniform grinding of a large plane cannot be guaranteed, the high-level requirement on the integral grinding flatness of the ground of the large plane cannot be met, particularly, the high-level requirement on the ground levelness of modern factories walking by robots, intelligent logistics ground and the like cannot be met, the extremely high requirement on the ground levelness is met, and the global existing construction equipment and technology cannot really meet the crucial requirement on leveling.

Disclosure of Invention

The technical scheme of the invention is to solve the technical problems of complex structure, troublesome maintenance, small grinding area, low efficiency and uneven ground grinding in large area of the existing multi-combination grinding small disc under the premise of utilizing the existing high end of a high-power motor.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the grinding disc of the motor-driven ground grinding machine comprises a chassis, wherein the chassis is a single flat disc, the width of a working surface of the chassis is more than 500mm, the motor is a direct-drive motor, the direct-drive motor is directly or indirectly connected with the chassis, a fixing device is arranged on the lower surface of the chassis, and an abrasive is fixedly installed on the fixing device.

Because the high-power direct drive motor is directly adopted, the torque is large, the technical problems that the motor power is insufficient and the grinding disc cannot be driven are solved, the direct drive motor runs stably, and the useless function loss is small; the large grinding disc is adopted, the single flat large disc with the width of more than 500mm is usually adopted, the grinding disc with larger grinding area can be selected according to different requirements, the structure is simple, the overhaul is convenient, different fixing devices are arranged on the grinding disc to directly install grinding blocks, different types of grinding blocks can be installed according to different grinding requirements, the grinding effect is good, and the ground is ground flat; the grinding block can be disassembled and replaced.

According to the requirement of the ground grinding of difference, to hard cement terrace, need adopt the abrasive brick of metal, further inject, the abrasive material is the metal abrasive brick, fixing device is the mounting groove, the embedding of metal abrasive brick is installed the mounting groove in. In order to prevent the metal grinding block from being thrown out by the rotating chassis during cutting and hurting people, the fixing mode adopts an embedded mode, namely, a mounting groove is formed in the lower surface of the chassis, the metal grinding block is knocked into the mounting groove in a tight fit mode through a hammer, and the metal grinding block is embedded into the mounting groove, so that the connecting mode is simple and firm.

Further, the installation grooves are circumferentially arranged in a plurality of numbers by taking the base plate as a center, and are circumferentially arranged by taking the base plate as a center.

Further limiting, the mounting grooves adjacent in each week are circumferentially and alternately arranged, so that the weight of the chassis is reduced, the circumferential grinding flatness is compensated, and the circumferential grinding grooves are eliminated.

Further limit, the adjacent mounting grooves are arranged in a radial and alternate mode every week, the weight of the chassis is reduced, the grinding is uniform, comprehensive and smooth, and circumferential grinding grooves are eliminated. The circumferential alternating arrangement or the radial alternating arrangement combination can be selected according to different ground surfaces.

The same reason, to the not very high or relatively level smooth terrace of ground grinding hardness degree, need adopt the abrasive brick of ceramic abrasive material or resin abrasive material, further inject, the abrasive brick is ceramic abrasive brick or resin abrasive brick, the back of ceramic abrasive brick or resin abrasive brick is provided with the tapetum that the magic was pasted, fixing device is the crocheted hair layer that the magic was pasted, the resin abrasive brick is fixed through colluding the tapetum and the mutual bonding of tapetum of magic subsides on the lower surface on chassis, this kind of connected mode is simple and convenient, installs a plurality of resin abrasive bricks according to the needs of difference, and the mounted position is nimble.

The same reason, if comparatively smooth terrace has, only need polish maintenance, only need inject the abrasive brick is animal hair pad or felt, the back of animal hair pad or felt is provided with the tapetum of magic subsides, fixing device is the crocheted hair layer of magic subsides, animal hair pad or felt are fixed through the crocheted hair layer and the tapetum of magic each other bonding on the lower surface of chassis, the mounting means of this kind is simple and convenient equally, nimble.

Furthermore, the structure mode of indirectly connecting the chassis is particularly limited, namely the adopted connection mode is as follows,

the lower end face of an output shaft of the direct drive motor is provided with a hanging wall bolt threaded hole, the hanging wall is in a shape of a two-step round platform, an output shaft mounting table matched with the output shaft is arranged downwards at the central position of the upper surface of the upper step round platform, a hanging wall shaft protruding downwards is arranged at the central position of the lower surface of the lower step round platform, a plurality of hanging wall bolt mounting through holes penetrating up and down are circumferentially arranged at the position of the lower step round platform outside the upper wall shaft, the hanging wall penetrates through the hanging wall bolt mounting through holes through hanging wall bolts and is in threaded connection with the hanging wall bolt threaded hole at the end face of the output shaft of the direct drive motor, and a plurality of hanging wall connecting through holes penetrating up and; the middle disc is in a shape of a reversed disc with a raised central position, an upper disc shaft mounting table matched with the upper disc shaft is downwards arranged at the central position of the raised upper surface of the middle disc, a middle disc mounting hole is circumferentially arranged at the position, close to the edge, of the raised upper surface of the middle disc, the middle disc mounting hole corresponds to the upper disc connecting through hole, and a plurality of middle disc connecting through holes which penetrate through up and down are circumferentially arranged at the position, close to the edge, of the middle disc; the chassis is a round flat disk with a central through hole at the central part, the size of the central through hole of the chassis is matched with that of the lower step round platform, and a plurality of lower disk mounting holes which penetrate through up and down are circumferentially arranged at the position, corresponding to the middle disk connecting through hole, on the chassis.

Above-mentioned structure of this kind of specific indirect connection chassis, because the output shaft that hanging wall and vertical axis directly drive the motor adopts the mode of mount table to connect, well dish and last dish axle also adopt the mode of mount table to connect, can guarantee good axiality, reduced the axial of chassis and beaten, guaranteed chassis moving stability, and the chassis adopts the structure that sets up central through hole, guaranteed the installation maintenance convenience of well dish and hanging wall in one aspect, on the other hand can effectually lighten the weight of chassis, and accomodate the clout that the grinding got off in the position department of central through hole.

Furthermore, an elastic damping rubber ring is arranged in the connecting through hole of the central disc. The elastic damping rubber ring can effectively ensure the flexible connection of the chassis and the middle disc in a large area, and the requirement on the connecting bolt is reduced under the condition of large torque.

Compared with the prior art, the invention has the following advantages: the size of the working surface of the independent grinding disc can be freely set, and the independent grinding disc is driven by a high-torque direct drive motor, so that the torque is large; the independent grinding disc single-point grinding replaces the multipoint grinding disc multipoint grinding, so that the ground is ground and leveled really; the grinding block can be disassembled and replaced, and the maintenance is quick and convenient; the middle disc is connected with the chassis by an elastic damping rubber ring, so that the starting torque is reduced, and the buffering effect is achieved; the fixing device can adopt a circumferential alternative or radial alternative arrangement mode, so that grinding positions among the grinding blocks arranged on the fixing device are mutually compensated, and the grinding device practically realizes no groove and flatness after grinding. When reducing the abrasive brick quantity, guarantee to grind evenly, comprehensive to can make up the range wantonly according to the demand on ground, when reducing the grinding diameter, can install the abrasive brick to central point and put.

Drawings

FIG. 1 is a schematic perspective view of a grinding pan of a motor-driven floor grinding machine according to the present invention;

FIG. 2 is a schematic longitudinal central sectional view of the grinding disk of a motor-driven floor grinding machine according to the invention; (ii) a

FIG. 3 is a schematic bottom view of the chassis mounting grooves arranged radially and alternately every week when metal abrasive blocks are used;

FIG. 4 is a schematic bottom view of the chassis mounting grooves arranged alternately in a circumferential direction every week when metal abrasive blocks are used;

FIG. 5 is a schematic bottom view of a base plate with a resin sanding block;

FIG. 6 is a schematic rear view of a resin block or a ceramic block;

FIG. 7 is a schematic bottom view of the chassis with a wool pad or felt sanding block;

fig. 8 is a schematic rear view of an abrading block using animal hair pads or felt.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the specific embodiments.

Example 1

As shown in fig. 1, 2, 3 and 4, the grinding disc of the motor-driven ground grinding machine, which is used for grinding a hard cement floor by using a metal grinding block 5, comprises an upper disc 1, a middle disc 2 and a base disc 3, wherein the working surface of the base disc 3 is a single flat disc, the width of the working surface of the base disc 3 is more than 500mm, the motor is a vertical shaft direct drive motor, the center of the upper disc 1 is circumferentially and fixedly connected to an output shaft 4 of the direct drive motor, the center of the middle disc 2 is circumferentially and fixedly connected to the upper disc 1, the center of the base disc 3 is circumferentially and fixedly fixed to the middle disc 2, an upper disc bolt threaded hole 41 is formed in the lower end surface of the output shaft 4 of the vertical shaft direct drive motor, the upper disc 1 is in a shape of two stepped circular truncated cones, an output shaft mounting table 11 matched with the output shaft 4 is arranged below the center of the upper surface of the upper stepped, an upper disc shaft 12 protruding downwards is arranged at the center of the lower surface of the lower stepped circular truncated cone, a plurality of upper disc bolt mounting through holes 13 penetrating up and down are circumferentially arranged at the position of the lower stepped circular truncated cone on the outer side of the upper disc shaft 12, the upper disc 1 is in threaded connection with an upper disc bolt threaded hole 41 in the end surface of an output shaft 4 of the direct drive motor through an upper disc bolt penetrating through the upper disc bolt mounting through holes 13, and a plurality of upper disc connecting through holes 14 penetrating up and down are circumferentially arranged at the position, close to the edge, of the lower stepped circular; the middle disc 2 is in the shape of an inverted disc with a raised central position, an upper disc shaft mounting table 22 matched with the upper disc shaft 12 is arranged downwards at the central position of the raised upper surface of the middle disc 2, a middle disc mounting hole 24 is circumferentially arranged at the position, close to the edge, of the raised upper surface of the middle disc 2, the position corresponds to the upper disc connecting through hole 14, and a plurality of middle disc connecting through holes 23 which penetrate through the middle disc 2 up and down are circumferentially arranged at the position, close to the edge, of the middle disc 2; the chassis 3 is a round flat disc with a chassis central through hole 31 in the center, the size of the chassis central through hole 31 is matched with that of the lower stepped round table, and a plurality of lower disc mounting holes 33 which penetrate through up and down are circumferentially arranged at the position, corresponding to the middle disc connecting through hole 23, on the chassis 3. The middle disc connecting through hole 23 is internally provided with an elastic damping rubber ring 21, the lower surface of the bottom disc is provided with mounting grooves 32, the metal grinding blocks 5 are embedded in the mounting grooves 32, the mounting grooves 32 are circumferentially arranged by taking the bottom disc 3 as the center and are circumferentially arranged by taking the bottom disc 3 as the center, and the mounting grooves 32 adjacent to each other every week are circumferentially alternately arranged or radially alternately arranged.

Adopt metal abrasive brick 5 to carry out the grinding during above-mentioned technical scheme of a motor drive's ground lapping disc, at first according to the grinding requirement of terrace, beat into mounting groove 32 with the hammer metal abrasive brick 5 in, the position of specifically embedding how many metal abrasive bricks 5 and metal abrasive brick 5 is arranged and all selects as required, because this novel mode that adopts direct hub connection of use, so power loss is few, adopts the big dish more than 500mm alone, and grinding efficiency is high, and the grinding face is unified levelly and smoothly. The chassis 3 which is arranged radially or circumferentially can be replaced according to the requirement, and then the metal grinding blocks 5 are arranged and combined in various ways to adapt to the requirements of various grounds.

Example 2

As shown in fig. 1, 2, 5 and 6, the grinding disc of the motor-driven ground grinding machine, which is required to grind a floor with a not very high ground grinding hardness degree by using a grinding block of a resin grinding block or a ceramic grinding block, comprises an upper disc 1, a middle disc 2 and a bottom disc 3, wherein the working surface of the bottom disc 3 is a single flat disc, the width of the working surface of the bottom disc 3 is more than 500mm, the motor is a vertical shaft direct drive motor, the center of the upper disc 1 is circumferentially and fixedly connected to an output shaft 4 of the direct drive motor, the center of the middle disc 2 is circumferentially and fixedly connected to the upper disc 1, the center of the bottom disc 3 is circumferentially and fixedly connected to the middle disc 2, a bolt threaded hole 41 is formed in the lower end surface of the output shaft 4 of the vertical shaft direct drive motor, the upper disc 1 is in a two-step circular table shape, an output shaft mounting table 11 matched with the output shaft 4 is arranged downwards in the center of the upper surface of, an upper disc shaft 12 protruding downwards is arranged at the center of the lower surface of the lower stepped circular truncated cone, a plurality of upper disc bolt mounting through holes 13 penetrating up and down are circumferentially arranged at the position of the lower stepped circular truncated cone on the outer side of the upper disc shaft 12, the upper disc 1 is in threaded connection with an upper disc bolt threaded hole 41 in the end surface of an output shaft 4 of the direct drive motor through an upper disc bolt penetrating through the upper disc bolt mounting through holes 13, and a plurality of upper disc connecting through holes 14 penetrating up and down are circumferentially arranged at the position, close to the edge, of the lower stepped circular; the middle disc 2 is in the shape of an inverted disc with a raised central position, an upper disc shaft mounting table 22 matched with the upper disc shaft 12 is arranged downwards at the central position of the raised upper surface of the middle disc 2, a middle disc mounting hole 24 is circumferentially arranged at the position, close to the edge, of the raised upper surface of the middle disc 2, the position corresponds to the upper disc connecting through hole 14, and a plurality of middle disc connecting through holes 23 which penetrate through the middle disc 2 up and down are circumferentially arranged at the position, close to the edge, of the middle disc 2; the chassis 3 is a round flat disc with a chassis central through hole 31 in the center, the size of the chassis central through hole 31 is matched with that of the lower stepped round table, and a plurality of lower disc mounting holes 33 which penetrate through up and down are circumferentially arranged at the position, corresponding to the middle disc connecting through hole 23, on the chassis 3. The middle disc connecting through hole 23 is internally provided with an elastic damping rubber ring 21, the lower surface of the chassis is provided with a fluff hooking layer 61 of a magic tape, the back of the resin grinding block 6 is provided with a fluff layer 62 of the magic tape, and the resin grinding block 6 is adhered and fixed on the lower surface of the chassis 3 through the fluff hooking layer 61 and the fluff layer 62 of the magic tape.

Adopt ceramic abrasive brick or resin abrasive brick 6 to carry out during the above-mentioned technical scheme of a motor drive's ground lapping machine's abrasive disc, at first according to the grinding requirement of terrace, bond ceramic abrasive brick or resin abrasive brick 6 on the fine hair layer 61 of colluding of chassis 3, how many ceramic abrasive bricks or resin abrasive brick 6 and the position of specifically bonding are arranged and all select as required, because this uses novel mode that adopts the direct hub connection, so power loss is few, adopt the big dish more than 500mm alone, high grinding efficiency, the grinding face is unified levelly and smoothly.

Example 3

As shown in fig. 1, 2, 7 and 8, the grinding disc of the motor-driven ground grinding machine, which is used for grinding ground, an upper disc shaft 12 protruding downwards is arranged at the center of the lower surface of the lower stepped circular truncated cone, a plurality of upper disc bolt mounting through holes 13 penetrating up and down are circumferentially arranged at the position of the lower stepped circular truncated cone on the outer side of the upper disc shaft 12, the upper disc 1 is in threaded connection with an upper disc bolt threaded hole 41 in the end surface of an output shaft 4 of the direct drive motor through an upper disc bolt penetrating through the upper disc bolt mounting through holes 13, and a plurality of upper disc connecting through holes 14 penetrating up and down are circumferentially arranged at the position, close to the edge, of the lower stepped circular; the middle disc 2 is in the shape of an inverted disc with a raised central position, an upper disc shaft mounting table 22 matched with the upper disc shaft 12 is arranged downwards at the central position of the raised upper surface of the middle disc 2, a middle disc mounting hole 24 is circumferentially arranged at the position, close to the edge, of the raised upper surface of the middle disc 2, the position corresponds to the upper disc connecting through hole 14, and a plurality of middle disc connecting through holes 23 which penetrate through the middle disc 2 up and down are circumferentially arranged at the position, close to the edge, of the middle disc 2; the chassis 3 is a round flat disc with a chassis central through hole 31 in the center, the size of the chassis central through hole 31 is matched with that of the lower stepped round table, and a plurality of lower disc mounting holes 33 which penetrate through up and down are circumferentially arranged at the position, corresponding to the middle disc connecting through hole 23, on the chassis 3. The middle disc connecting through hole 23 is internally provided with an elastic damping rubber ring 21, the lower surface of the bottom disc is provided with a fluff layer 72 of a magic tape, the back surface of the felt or animal hair pad 7 is provided with a fluff layer 71 of the magic tape, and the felt or animal hair pad 7 is adhered and fixed on the lower surface of the bottom disc 3 through the fluff layer 71 and the fluff layer 72 of the magic tape.

When the technical scheme of the grinding disc of the motor-driven ground grinder for grinding by adopting the felts or the animal hair pads is adopted, firstly, the felts or the animal hair pads 7 are bonded on the fluff layer 72 of the chassis 3 according to the grinding requirement of the floor, and the specific positions and the arrangement of the felts or the animal hair pads 7 and the felts or the animal hair pads 7 are selected according to the requirement.

The description of the embodiments is only for the purpose of helping understanding the method of the present invention and the core idea thereof, it should be noted that the above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to the arrangement and combination of the above two mounting slots on the chassis, and it will be apparent to those skilled in the art that the present invention can be modified and modified in several ways without departing from the principle of the present invention, and the modified and modified positions and other arrangements and combinations of the mounting slots will also fall within the protection scope of the present invention.

Claims

1. A grinding pan for a motor-driven floor grinding machine, comprising a chassis, characterized in that: the grinding machine is characterized in that the working surface of the base plate is a single flat plate, the width of the working surface of the base plate is more than 500mm, the motor is a vertical shaft direct-drive motor, the direct-drive motor is directly or indirectly connected with the base plate, a fixing device is arranged on the lower surface of the base plate, and the fixing device is used for fixedly mounting grinding materials.

2. A grinding pan for a motor-driven floor grinding machine according to claim 1, characterized in that: the grinding material is a metal grinding block, the fixing device is a mounting groove, and the metal grinding block is embedded in the mounting groove.

3. A grinding pan for a motor-driven floor grinding machine according to claim 2, characterized in that: the mounting grooves are circumferentially arranged by taking the base plate as a center, and are circumferentially arranged by taking the base plate as a center.

4. A grinding pan for a motor-driven floor grinding machine according to claim 3, characterized in that: the adjacent mounting grooves are arranged alternately in the circumferential direction.

5. A grinding pan for a motor-driven floor grinding machine according to claim 3, characterized in that: the adjacent mounting grooves are arranged alternately in the radial direction every week.

6. A grinding pan for a motor-driven floor grinding machine according to claim 1, characterized in that: the grinding material is a resin grinding block or a ceramic grinding block, a fluff layer of a magic tape is arranged on the back surface of the resin grinding block or the ceramic grinding block, the fixing device is a fluff hooking layer of the magic tape, and the resin grinding block or the ceramic grinding block is fixed on the lower surface of the chassis in a mutual bonding mode through the fluff hooking layer and the fluff layer of the magic tape.

7. A grinding pan for a motor-driven floor grinding machine according to claim 1, characterized in that: the grinding material is a fur mat or a felt sheet, the fixing device is a fur hooking device, and the fur mat or the felt sheet is fixed on the lower surface of the chassis through the fur hooking device.

8. A grinding pan for a motor-driven floor grinding machine according to claim 1, characterized in that: the direct-drive motor is characterized by further comprising an upper disc and a middle disc, wherein the center of the upper disc is circumferentially and fixedly connected to an output shaft of the direct-drive motor, the center of the middle disc is circumferentially and fixedly connected to the upper disc, and the center of the bottom disc is circumferentially and fixedly connected to the middle disc.

9. A grinding pan for a motor-driven floor grinding machine according to claim 8, characterized in that: an upper disc bolt threaded hole is formed in the lower end face of an output shaft of the vertical shaft direct-drive motor, the upper disc is in a shape of a two-step circular truncated cone, an output shaft mounting table matched with the output shaft is arranged downwards in the center of the upper surface of the upper step circular truncated cone, an upper disc shaft protruding downwards is arranged in the center of the lower surface of the lower step circular truncated cone, a plurality of upper disc bolt mounting through holes penetrating up and down are formed in the circumferential direction of the lower step circular truncated cone on the outer side of the upper disc shaft, the upper disc penetrates through the upper disc bolt mounting through holes through upper disc bolts to be in threaded connection with the upper disc bolt threaded hole in the end face of the output shaft of the direct-drive motor, and a;

the middle disc is in a shape of a reversed disc with a raised central position, an upper disc shaft mounting table matched with the upper disc shaft is downwards arranged at the central position of the raised upper surface of the middle disc, a middle disc mounting hole is circumferentially arranged at the position, close to the edge, of the raised upper surface of the middle disc, the middle disc mounting hole corresponds to the upper disc connecting through hole, and a plurality of middle disc connecting through holes which penetrate through up and down are circumferentially arranged at the position, close to the edge, of the middle disc;

the chassis is a round flat disk with a central through hole at the central part, the size of the central through hole of the chassis is matched with that of the lower step round platform, and a plurality of lower disk mounting holes which penetrate through up and down are circumferentially arranged at the position, corresponding to the middle disk connecting through hole, on the chassis.

10. A grinding pan for a motor-driven floor grinding machine according to claim 9, characterized in that: and an elastic damping rubber ring is arranged in the middle disc connecting through hole.