CN220944764U - Balance structure of flat sand counterweight - Google Patents
Balance structure of flat sand counterweight Download PDFInfo
- Publication number
- CN220944764U CN220944764U CN202322525509.5U CN202322525509U CN220944764U CN 220944764 U CN220944764 U CN 220944764U CN 202322525509 U CN202322525509 U CN 202322525509U CN 220944764 U CN220944764 U CN 220944764U
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- China
- Prior art keywords
- casing
- output shaft
- bottom plate
- shell
- motor
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- 239000004576 sand Substances 0.000 title claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims 5
- 238000009434 installation Methods 0.000 claims 1
- 244000137852 Petrea volubilis Species 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005498 polishing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a flat sand counterweight balance structure, which comprises a shell, wherein a motor is arranged at the upper part of the shell, the motor is fixedly connected with the shell, an aluminum bottom plate is arranged at the lower part of the shell, a lower positioning plate is arranged at the bottom of the aluminum bottom plate, a steel wire clamp for installing sand paper is arranged on the lower positioning plate, a bracket foot is arranged on the shell, the bracket foot is fixedly connected with the aluminum bottom plate, and an inner dust outlet pipe can be arranged on the bracket foot; the inside of casing is provided with the fan blade, and this fan blade is installed on the output shaft of motor, the main balancing weight is installed to the lower extreme of output shaft. The beneficial effects are that: vibration of the equipment in the working state is reduced, and stability of the flat sand in the working state is improved; after the vibration of the working state of the whole machine is reduced, the comfort level of the handheld device during operation can be greatly improved, the hand fatigue is slowed down, and the use safety of the device is improved.
Description
Technical Field
The utility model relates to the technical field of mechanical tools, in particular to a balance structure of a flat sand counterweight.
Background
The flat sand is an electric mechanical tool and is used for polishing and polishing wood boards, wall surfaces, metal plates and other materials. At present, when flat sand is used, because the eccentric motion exists in the internal mechanical structure, after the equipment is started up and operated, the vibration is severe, when the handheld equipment works, the severe vibration can lead to the easy fatigue of hands of operators, and then the problems of unstable holding of the equipment, reduction of working efficiency, reduction of grinding effect and the like are caused.
Disclosure of utility model
The utility model aims to provide a balance structure of a flat sand counterweight, which aims to solve the problems, and the preferable technical proposal among the technical proposal provided by the utility model is as follows: the stability of the movement of the flat sand is improved, the holding hand feeling is improved, the working efficiency is improved, and the like.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a balance structure of a flat sand counterweight, which comprises a shell, wherein a motor is arranged at the upper part of the shell, the motor is fixedly connected with the shell, an aluminum bottom plate is arranged at the lower part of the shell, a lower positioning plate is arranged at the bottom of the aluminum bottom plate, a steel wire clamp for installing sand paper is arranged on the lower positioning plate, a bracket foot is arranged on the shell, the bracket foot is fixedly connected with the aluminum bottom plate, and an inner dust outlet pipe can be arranged on the bracket foot;
The inside of casing is provided with the fan blade, and this fan blade is installed on the output shaft of motor, main balancing weight is installed to the lower extreme of output shaft, main balancing weight pass through the screw with the end connection of output shaft.
Preferably, the output shaft is further provided with an eccentric auxiliary counterweight, the eccentric auxiliary counterweight is arranged on the outer side of the output shaft, and the fan blade is sleeved on the outer side of the eccentric auxiliary counterweight.
Preferably, a second bearing is provided on the outer side of the lower portion of the eccentric auxiliary weight, and the eccentric auxiliary weight is rotatably engaged with the housing through the second bearing.
Preferably, a groove is formed in the middle of the aluminum bottom plate, the position of the groove corresponds to the position of the middle of the shell, the bottom of the shell is matched with the groove to form a cavity after the shell is fixedly connected with the aluminum bottom plate, and the main balancing weight is arranged in the cavity.
Preferably, the lower positioning plate is an EVA plate.
Preferably, one end of the inner dust outlet pipe is inserted into the casing, and the other end extends out of the surface of the casing.
In summary, the utility model has the following beneficial effects: 1. by arranging the eccentric auxiliary counter weight and the main counter weight, the eccentric auxiliary counter weight can be used as the counter weight at the lower part of the fan blade when the fan blade rotates, so that the swing of the fan blade is reduced and the horizontal rotation action of the fan blade is stabilized when the motor drives the fan blade to rotate, thereby reducing the vibration of the equipment in the working state and improving the stability of the flat sand in the working state;
2. After the vibration of the working state of the whole machine is reduced, the comfort level of the handheld device during operation can be greatly improved, the hand fatigue is slowed down, and the use safety of the device is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present utility model.
The reference numerals are explained as follows:
1. A motor; 2. a first bearing; 3. a housing; 4. a fan blade; 5. an eccentric auxiliary counterweight; 6. a second bearing; 7. a main balancing weight; 8. a screw; 9. an aluminum bottom plate; 10. a lower positioning plate; 11. a wire clamp; 12. an inner dust outlet pipe; 13. and (5) supporting legs.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
Referring to fig. 1, the utility model provides a balance structure of a flat sand counterweight, which comprises a casing 3, wherein a motor 1 is arranged at the upper part of the casing 3, the motor 1 is fixedly connected with the casing 3, an aluminum bottom plate 9 is arranged at the lower part of the casing 3, a lower positioning plate 10 is arranged at the bottom of the aluminum bottom plate 9, and the lower positioning plate 10 is an EVA plate; the lower positioning plate 10 is provided with a steel wire clamp 11 for installing sand paper, the casing 3 is provided with a bracket foot 13, the bracket foot 13 is fixedly connected with the aluminum bottom plate 9, the inner dust outlet pipe 12 can be arranged on the lower positioning plate, one end of the inner dust outlet pipe 12 is inserted into the casing 3, the other end extends out of the surface of the casing 3, fig. 1 is a section view of flat sand, thus the connection state of the casing 3 and the inner dust outlet pipe 12 is not shown, and the mutual matching relation among the casing 3, the inner dust outlet pipe 12, the aluminum bottom plate 9 and the bracket foot 13 is known in the prior art and is not repeated herein;
The inside of the shell 3 is provided with a fan blade 4, the fan blade 4 is arranged on an output shaft of the motor 1, the lower end of the output shaft is provided with a main balancing weight 7, and the main balancing weight 7 is connected with the end part of the output shaft through a screw 8; the output shaft is also provided with an eccentric auxiliary counterweight 5, the eccentric auxiliary counterweight 5 is arranged at the outer side of the output shaft, the fan blade 4 is sleeved at the outer side of the eccentric auxiliary counterweight 5, then moves upwards along the lower end of the output shaft until the top of the eccentric auxiliary counterweight 5 is connected with the bottom of the first bearing 2, and then the main counterweight 7 is sleeved at the bottom end of the output shaft and is fixed by using a screw 8; a second bearing 6 is arranged on the outer side of the lower part of the eccentric auxiliary counterweight 5, and the eccentric auxiliary counterweight 5 is in running fit with the shell 3 through the second bearing 6;
The middle part of the aluminum bottom plate 9 is provided with a groove, the position of the groove corresponds to the position of the middle part of the shell 3, after the shell 3 is fixedly connected with the aluminum bottom plate 9, the bottom of the shell 3 is matched with the groove to form a cavity, and the main balancing weight 7 is arranged in the cavity; the position of the main balancing weight 7 can be lowered by the arrangement, so that the gravity center of the part structure on the output shaft is lowered when the swing-reducing mechanism is used, and the swing-reducing mechanism has a certain effect of reducing swing.
By adopting the structure, the eccentric auxiliary counter weight 5 and the main counter weight 7 are arranged, and the eccentric auxiliary counter weight can be used as a counter weight at the lower part of the fan blade 4 when the fan blade 4 rotates, so that when the motor 1 drives the fan blade 4 to rotate, the transverse swing of the fan blade 4 is reduced, the horizontal rotation action of the fan blade 4 is stabilized, the vibration of the equipment in the working state is reduced, the stability of the flat sand in the working state is improved, the service life of the equipment is prolonged, and the operation comfort of the handheld equipment is ensured; after the vibration of the working state of the whole machine is reduced, the comfort level of the handheld device during operation can be greatly improved, the hand fatigue is slowed down, the safety of the device is improved, and meanwhile, the operation action of the hand can be stabilized, so that the polishing efficiency and polishing working effect of the working face are ensured.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a dull and stereotyped sand counter weight balanced structure, its characterized in that, including casing (3), the upper portion of this casing (3) is provided with motor (1), motor (1) with casing (3) fixed connection, the lower part of casing (3) is provided with aluminium bottom plate (9), the bottom of aluminium bottom plate (9) is provided with down locating plate (10), be provided with steel wire clamp (11) of installation abrasive paper on locating plate (10) down, be provided with support foot (13) on casing (3), this support foot (13) with aluminium bottom plate (9) fixed connection, be provided with interior dust pipe (12) on the casing;
The novel motor is characterized in that a fan blade (4) is arranged in the casing (3), the fan blade (4) is arranged on an output shaft of the motor (1), a main balancing weight (7) is arranged at the lower end of the output shaft, and the main balancing weight (7) is connected with the end part of the output shaft through a screw (8).
2. The flat sand balance structure according to claim 1, wherein: the output shaft is further provided with an eccentric auxiliary counterweight (5), the eccentric auxiliary counterweight (5) is arranged on the outer side of the output shaft, and the fan blades (4) are sleeved on the outer side of the eccentric auxiliary counterweight (5).
3. A flat sand counter weight balance structure according to claim 2, wherein: the outer side of the lower part of the eccentric auxiliary counterweight (5) is provided with a second bearing (6), and the eccentric auxiliary counterweight (5) is in rotating fit with the shell (3) through the second bearing (6).
4. A flat sand counter weight balance structure according to claim 2, wherein: the middle part of aluminium bottom plate (9) is provided with the recess, this recess position with casing (3) middle part position corresponds, casing (3) with after aluminium bottom plate (9) fixed connection, the bottom of this casing (3) with the recess cooperation forms a cavity, main balancing weight (7) set up in the cavity.
5. The flat sand balance structure according to claim 1, wherein: the lower locating plate (10) is an EVA plate.
6. The flat sand balance structure according to claim 1, wherein: one end of the inner dust outlet pipe (12) is inserted into the casing (3), and the other end extends out of the surface of the casing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322525509.5U CN220944764U (en) | 2023-09-18 | 2023-09-18 | Balance structure of flat sand counterweight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322525509.5U CN220944764U (en) | 2023-09-18 | 2023-09-18 | Balance structure of flat sand counterweight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220944764U true CN220944764U (en) | 2024-05-14 |
Family
ID=90972898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322525509.5U Active CN220944764U (en) | 2023-09-18 | 2023-09-18 | Balance structure of flat sand counterweight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220944764U (en) |
-
2023
- 2023-09-18 CN CN202322525509.5U patent/CN220944764U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |