CN220592730U - Eccentric installation component of polishing machine - Google Patents
Eccentric installation component of polishing machine Download PDFInfo
- Publication number
- CN220592730U CN220592730U CN202322303595.5U CN202322303595U CN220592730U CN 220592730 U CN220592730 U CN 220592730U CN 202322303595 U CN202322303595 U CN 202322303595U CN 220592730 U CN220592730 U CN 220592730U
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- Prior art keywords
- bearing
- bottom plate
- seat
- eccentric
- mounting
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- 238000005498 polishing Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Abstract
The utility model discloses an eccentric mounting assembly of a polishing machine, which comprises a bearing mounting assembly and a bottom plate. The key points are as follows: the device also comprises a driving shaft, an eccentric seat, a first bearing and a bottom plate connecting shaft. The driving shaft is sequentially divided into a transmission shaft part, a rotation-stopping mounting part and a threaded connecting part from top to bottom. The threaded connection part is provided with external threads. The eccentric seat is an integral part and comprises an installation seat part and an eccentric balance part. The mounting seat is provided with a mounting screw hole which is matched with the threaded connecting part of the driving shaft; the mounting seat is provided with a bearing seat hole with a downward opening, and the bearing seat hole and the mounting screw hole are arranged in different axes and are parallel to each other. The first bearing is arranged in a bearing seat hole of a mounting seat part of the eccentric seat by interference fit of an outer ring of the first bearing. The bottom plate connecting shaft is arranged in the inner ring of the first bearing in an interference fit mode, and the bottom plate connecting shaft is arranged on the first bearing in an axial limiting mode. The bottom plate is fixedly connected to the bottom plate connecting shaft.
Description
Technical Field
The utility model relates to the technical field of electric tools, in particular to an eccentric mounting assembly of a polishing machine.
Background
When the polishing machine works, the motor drives the working bottom plate to make eccentric motion through the transmission mechanism, so that the sponge and the sand paper rub the surface to be polished, and the purposes of removing the surface pollution, the oxide layer, the shallow mark and the like of the object can be achieved. Because of the abrasion, the working bottom plate needs to be replaced after a period of use, and the existing working bottom plate is mostly fixed on the transmission mechanism through three screws, so that the disassembly and assembly are troublesome. Chinese patent document CN217992141U discloses a floor mounting assembly of a polishing machine, which describes that the floor mounting assembly includes an eccentric shaft, a main shaft bearing assembly, an eccentric block, a floor bearing housing, a floor connecting seat, and a floor. The eccentric shafts are rotatably arranged in the machine body of the corresponding polishing machine through the main shaft bearing assemblies, and the eccentric shafts are metal integrated pieces. The eccentric shaft is sequentially divided into a transmission shaft part, a connecting disc part and an eccentric shaft part from top to bottom. The eccentric block is connected and arranged on the eccentric shaft part of the eccentric shaft in a transmission way. The base plate bearing is provided on the eccentric shaft portion of the eccentric shaft. The bottom plate bearing is arranged in the bottom plate bearing seat. The bottom plate connecting seat is fixedly arranged and connected on the bottom plate bearing seat. The bottom plate fixed connection is on the bottom plate connecting seat. The eccentric shaft is adopted in the structure, the eccentric block is used for balancing, the requirements on the eccentric shaft and the eccentric block in the actual assembly process are high, the processing difficulty is high, and the assembly requirement is high.
Disclosure of Invention
The utility model aims to provide an eccentric mounting assembly of a polishing machine, which is simple in structure and convenient to assemble.
The basic technical scheme for realizing the aim of the utility model is as follows: an eccentric mounting assembly of a polishing machine includes a bearing mounting assembly and a base plate. The structure is characterized in that: the device also comprises a driving shaft, an eccentric seat, a first bearing and a bottom plate connecting shaft. The driving shaft is sequentially divided into a transmission shaft part, a rotation-stopping mounting part and a threaded connecting part from top to bottom. The threaded connection part is provided with external threads.
The drive shaft is rotatably disposed in the body of the respective polisher by a bearing mounting assembly.
The eccentric seat is an integral part and comprises an installation seat part and an eccentric balance part. The mounting seat is provided with a mounting screw hole which is matched with the threaded connecting part of the driving shaft; the mounting seat is provided with a bearing seat hole with a downward opening, and the bearing seat hole and the mounting screw hole are arranged in different axes and are parallel to each other.
The first bearing is arranged in a bearing seat hole of a mounting seat part of the eccentric seat by interference fit of an outer ring of the first bearing. The bottom plate connecting shaft is arranged in the inner ring of the first bearing in an interference fit mode, and the bottom plate connecting shaft is arranged on the first bearing in an axial limiting mode. The bottom plate is fixedly connected to the bottom plate connecting shaft.
Further, in order to facilitate installation and transmission, the lower end of the bottom plate connecting shaft is provided with a transmission connecting part, and the transmission connecting part is provided with a bottom plate fixing screw hole with a downward opening. The bottom plate is provided with a connecting hole corresponding to the section shape of the transmission connecting part of the bottom plate connecting shaft. The transmission connecting part of the bottom plate connecting shaft is inserted into the connecting hole of the bottom plate to form transmission connection fit.
Furthermore, in order to facilitate installation, the firmness of installation is improved, and the front side and the rear side of the rotation stopping installation part are provided with rotation stopping notches.
Further, in order to improve the operation stability of the base plate connecting shaft, a second bearing is further included. The second bearing is arranged in a bearing seat hole of the mounting seat part of the eccentric seat by interference fit of an outer ring of the second bearing and is positioned below the first bearing. The bottom plate connecting shaft is arranged in the inner rings of the first bearing and the second bearing in an interference fit mode.
The utility model has the following beneficial effects: (1) According to the utility model, the eccentric seat is used for replacing an eccentric shaft in the prior art, and is fixed on the driving shaft, so that the processing difficulty is greatly reduced, and the balance is easy to realize. (2) The eccentric mounting assembly of the polishing machine is provided with the bottom plate connecting shaft, the bottom plate is mounted on the bottom plate connecting shaft, the disassembly and the assembly are convenient, the transmission shaft is not easy to damage, and the service life of equipment is greatly prolonged. (3) The transmission shaft part of the driving shaft is provided with the rotation-stopping mounting part, so that the driving shaft is good in use reliability and convenient to mount and dismount the eccentric seat. (4) The bottom plate connecting shaft is rotatably arranged in the mounting seat part of the eccentric seat through the two bearings, has high strength and good stability, is favorable for larger eccentric arrangement, and improves the polishing effect.
Drawings
Fig. 1 is a schematic structural view of an eccentric mounting assembly of the polishing machine of the present utility model.
Fig. 2 is a right-side view of fig. 1.
Fig. 3 is a schematic top view of fig. 1.
Fig. 4 is a schematic view as seen from the upper right front of fig. 1.
Fig. 5 is a schematic structural view of the drive shaft.
Fig. 6 is a schematic structural view of the eccentric mass as seen from the upper right side of fig. 1.
Fig. 7 is a schematic view of the eccentric mass as seen from the lower left front of fig. 1.
Fig. 8 is a schematic cross-sectional view A-A in fig. 3.
Fig. 9 is a schematic structural view of the base plate connecting shaft.
Fig. 10 is an exploded view as seen from the upper right front of fig. 1.
The reference numerals in the drawings are:
a driving shaft 1, a driving shaft part 11, a rotation stopping mounting part 12, a rotation stopping notch 12-1, a threaded connecting part 13,
the bearing mounting assembly 2, the upper bearing 21, the lower bearing 22,
the adjusting sleeve 3 is provided with a plurality of adjusting grooves,
eccentric seat 4, mounting seat 41, mounting screw hole 41-1, bearing seat hole 41-2, eccentric balance portion 42,
the first bearing (5) is provided with a first bearing,
the second bearing 6 is provided with a first bearing,
a base plate connecting shaft 7, a transmission connecting part 71, a base plate fixing screw hole 72,
a bottom plate 8, and a connection hole 81.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings. The description of the azimuth of the present utility model is performed according to the azimuth shown in fig. 1, that is, the up-down-left-right direction shown in fig. 1 is the up-down-left-right direction of the description, the direction facing in fig. 1 is the front, and the direction facing away from fig. 1 is the rear. It should be understood that the terms "upper," "lower," "inner," "outer," and the like indicate orientations or positional relationships based on the positional relationships described in the drawings, and are merely used to facilitate describing the utility model or simplify the description, and do not indicate a particular orientation that must be assumed.
Example 1
Referring to fig. 1 to 10, the eccentric mounting assembly of the polishing machine of the present utility model includes a driving shaft 1, a bearing mounting assembly 2, an adjusting sleeve 3, an eccentric seat 4, a first bearing 5, a second bearing 6, a base plate connecting shaft 7, and a base plate 8.
Referring to fig. 1 to 5, the drive shaft 1 is a metal integral piece, and the drive shaft 1 of the present embodiment is a steel integral piece. The drive shaft 1 is divided into a transmission shaft portion 11, a rotation-stopping mounting portion 12, and a screw connection portion 13 in this order from top to bottom. The front side and the rear side of the rotation stopping mounting part 12 are provided with rotation stopping notches 12-1. The screw connection portion 13 is provided with external screw threads.
Referring to fig. 1 to 5, the bearing mounting assembly 2 includes an upper bearing 21 and a lower bearing 22. The upper bearing 21 is disposed on the upper portion of the transmission shaft portion 11 of the drive shaft 1 by its inner race addictive fit, the lower bearing 22 is disposed on the lower portion of the transmission shaft portion 11 of the drive shaft 1 by its inner race addictive fit, and the lower bearing 22 is located on the upper side of the rotation-stopping mounting portion 12. The driving shaft 1 is rotatably disposed in the body of the corresponding polishing machine through the upper bearing 21 and the lower bearing 22 of the bearing mounting assembly 2, and a transmission large gear transmission is disposed on the transmission shaft portion 11 of the driving shaft 1 between the upper bearing 21 and the lower bearing 22.
Referring to fig. 1 to 5, the adjusting sleeve 3 slides on the transmission shaft portion 11 of the driving shaft 1, the adjusting sleeve 3 is located at the lower side of the transmission large gear, the transmission large gear is supported from below, and the transmission large gear is limited and fixed in the axial direction.
Referring to fig. 1 to 8, the eccentric seat 4 is an integral piece, and the eccentric seat 4 of the present embodiment is a steel integral piece. The eccentric seat 4 includes a mounting seat portion 41 and an eccentric balance portion 42. The mounting seat 41 is provided with a mounting screw hole 41-1, the mounting screw hole 41-1 is matched with the threaded connection part 13 of the driving shaft 1, and the threaded connection part 13 of the driving shaft 1 is screwed and fixed in the mounting screw hole 41-1 of the mounting seat 41 of the eccentric seat 4. During installation, the rotation stopping notch 12-1 of the rotation stopping installation part 12 of the driving shaft 1 is clamped by a spanner, and then the eccentric seat 4 is screwed and fixed on the threaded connection part 13 of the driving shaft 1. The mounting seat 41 is provided with a bearing seat hole 41-2 with a downward opening, the bearing seat hole 41-2 and the mounting screw hole 41-1 are arranged in different axes, and are parallel to each other, namely, the bearing seat hole 41-2 and the driving shaft 1 are eccentrically arranged.
Referring to fig. 8 and 10, the first bearing 5 is disposed in the bearing housing hole 41-2 of the mounting seat portion 41 of the eccentric seat 4 by interference fit of its outer circumference, and the second bearing 6 is disposed in the bearing housing hole 41-2 of the mounting seat portion 41 of the eccentric seat 4 by interference fit of its outer circumference, below the first bearing 5. Three screws are screwed on the mounting seat portion 41 of the eccentric seat 4, and corresponding portions of the respective screws are located below the outer ring of the second bearing 6, so that the outer ring of the second bearing 6 is fixed in the mounting seat portion 41 in the axial direction by the nuts of the screws. The bottom plate connecting shaft 7 is arranged in the inner rings of the first bearing 5 and the second bearing 6 in an interference fit mode, a clamp spring is arranged at the upper end of the bottom plate connecting shaft 7, and the clamp spring limits the bottom plate connecting shaft 7 to be arranged on the first bearing 5 in the axial direction. The lower end of the bottom plate connecting shaft 7 is provided with a transmission connecting part 71, and the transmission connecting part 71 is provided with a bottom plate fixing screw hole 72 with a downward opening. The base plate 8 is provided with a connection hole 81 corresponding to the cross-sectional shape of the transmission connection portion 71 of the base plate connection shaft 7. The transmission connection part 71 of the bottom plate connection shaft 7 is inserted into the connection hole 81 of the bottom plate 8 to form transmission connection fit, and the bottom plate 8 is fixedly connected to the bottom plate connection shaft 7 by screwing corresponding bottom plate mounting screws into the bottom plate fixing screw holes 72 of the bottom plate connection seat 7.
While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.
Claims (4)
1. An eccentric mounting assembly of a polishing machine comprises a bearing mounting assembly (2) and a bottom plate (8); the method is characterized in that: the device also comprises a driving shaft (1), an eccentric seat (4), a first bearing (5) and a bottom plate connecting shaft (7); the driving shaft (1) is sequentially divided into a transmission shaft part (11), a rotation stopping installation part (12) and a threaded connection part (13) from top to bottom; the threaded connection part (13) is provided with external threads;
the driving shaft (1) is rotatably arranged in the body of the corresponding polishing machine through the bearing mounting assembly (2);
the eccentric seat (4) is an integral piece, and the eccentric seat (4) comprises an installation seat (41) and an eccentric balance part (42); the mounting seat part (41) is provided with a mounting screw hole (41-1), and the mounting screw hole (41-1) is matched with the threaded connection part (13) of the driving shaft (1); the mounting seat part (41) is provided with a bearing seat hole (41-2) with a downward opening, and the bearing seat hole (41-2) and the mounting screw hole (41-1) are arranged in different axes and are parallel to each other;
the first bearing (5) is arranged in a bearing seat hole (41-2) of a mounting seat part (41) of the eccentric seat (4) by interference fit of an outer ring of the first bearing; the bottom plate connecting shaft (7) is arranged in the inner ring of the first bearing (5) in an interference fit manner, and the bottom plate connecting shaft (7) is arranged on the first bearing (5) in an axial limiting manner; the bottom plate (8) is fixedly connected to the bottom plate connecting shaft (7).
2. The eccentric mounting assembly of a polisher according to claim 1 wherein: the lower end of the bottom plate connecting shaft (7) is provided with a transmission connecting part (71), and the transmission connecting part (71) is provided with a bottom plate fixing screw hole (72) with a downward opening; the bottom plate (8) is provided with a connecting hole (81) corresponding to the section shape of the transmission connecting part (71) of the bottom plate connecting shaft (7); the transmission connection part (71) of the bottom plate connection shaft (7) is inserted into the connection hole (81) of the bottom plate (8) to form transmission connection fit.
3. The eccentric mounting assembly of a polisher according to claim 1 wherein: the front side and the rear side of the rotation stopping installation part (12) are provided with rotation stopping notches (12-1).
4. The eccentric mounting assembly of a polisher according to claim 1 wherein: also comprises a second bearing (6); the second bearing (6) is arranged in a bearing seat hole (41-2) of a mounting seat part (41) of the eccentric seat (4) by interference fit of an outer ring of the second bearing and is positioned below the first bearing (5); the bottom plate connecting shaft (7) is arranged in the inner rings of the first bearing (5) and the second bearing (6) in an interference fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322303595.5U CN220592730U (en) | 2023-08-25 | 2023-08-25 | Eccentric installation component of polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322303595.5U CN220592730U (en) | 2023-08-25 | 2023-08-25 | Eccentric installation component of polishing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220592730U true CN220592730U (en) | 2024-03-15 |
Family
ID=90172259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322303595.5U Active CN220592730U (en) | 2023-08-25 | 2023-08-25 | Eccentric installation component of polishing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220592730U (en) |
-
2023
- 2023-08-25 CN CN202322303595.5U patent/CN220592730U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |