CN216503920U - Terrace grinder - Google Patents
Terrace grinder Download PDFInfo
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- CN216503920U CN216503920U CN202120650451.5U CN202120650451U CN216503920U CN 216503920 U CN216503920 U CN 216503920U CN 202120650451 U CN202120650451 U CN 202120650451U CN 216503920 U CN216503920 U CN 216503920U
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Abstract
The utility model discloses a terrace grinder which comprises a grinder body, a driving motor, a fixed gear disc and a planetary gear box, wherein the driving motor and the fixed gear disc are arranged on the grinder body; the planetary gear box is provided with at least five output gears, wherein each output gear is connected with a grinding disc through an output shaft; a transmission shaft is connected to a part of transmission gears in the planetary gear box, a part of the transmission shaft extends out of the planetary gear box, a part of the transmission shaft extending out of the planetary gear box is connected with a rotating gear meshed with a fixed gear disc in a rotation stopping mode, the rotating direction of the planetary gear box is opposite to that of the fixed gear disc, and acting forces generated on a machine body when the planetary gear box rotates are mutually offset. The self-balancing floor grinding machine can realize self-balancing during working, and has the advantages that at least five grinding discs are used for grinding the floor simultaneously, so that the grinding efficiency of the floor is improved, the cross grinding between the grinding discs is avoided, and the utilization rate of grinding discs on the grinding discs is improved.
Description
Technical Field
The utility model belongs to the technical field related to grinding, and particularly relates to a terrace grinding machine.
Background
The floor grinding machine is mainly used for grinding the ground, and can effectively grind terrazzo, a concrete surface layer, an epoxy mortar layer, an old epoxy ground and the like.
At present, the mill that is used for grinding on the current terrace grinder is three or four usually for terrace grinder during operation specifically utilizes the grinding between diaphragm and the terrace on the mill, reaches the effect of polishing the terrace.
It can be understood that foretell floor grinding machine during operation can realize the processing of polishing to the floor, nevertheless be three or four because of the quantity of mill for this floor grinding machine during operation, there is the situation of alternately polishing between the mill, and the one-third to the half of the preceding way grinding face will be pressed to the back way, not only can make the loss of the diaphragm on the mill that lies in the preceding way on this floor grinding machine faster like this, but also reduced the utilization ratio of abrasive disc, make the grinding efficiency of floor grinding machine during operation low.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a terrace grinder to solve the technical problems in the prior art.
The terrace grinding machine comprises a machine body, a driving motor and a fixed gear disc which are arranged on the machine body, and a planetary gear box; the planetary gear box is provided with at least five output gears, wherein each output gear is connected with a grinding disc through an output shaft, and the driving motor can drive the grinding discs to rotate relative to the machine body through the planetary gear box; the transmission shaft is connected to a part of transmission gears in the planetary gear box, the part of the transmission shaft extends out of the planetary gear box, a rotating gear meshed with the fixed gear disc is connected to the part of the transmission shaft extending out of the planetary gear box in a rotation stopping mode, the driving motor can drive the planetary gear box to rotate relative to the machine body through the transmission shaft by means of the meshing engagement between the fixed gear disc and the rotating gear, the rotating direction of the planetary gear box is opposite to that of the grinding disc, and acting forces generated on the machine body when the planetary gear box rotates are mutually offset.
According to the floor grinding machine, through the reasonable structural arrangement, the driving motor can drive the grinding discs to rotate simultaneously, and then the self-balancing of the floor grinding machine is realized by utilizing the reverse rotation of the planetary gear box and the grinding discs, so that at least five grinding discs are arranged to grind the floor simultaneously when the floor grinding machine works, the grinding efficiency of the floor is improved, the situation of cross grinding among the grinding discs is avoided, and the utilization rate of grinding discs on the grinding discs is improved.
As a preferable scheme of the present invention, the planetary gear box includes a box body, a planetary gear structure disposed in the box body, and a box cover covering the box body, the box cover is provided with a through hole matching with the transmission shaft, and the transmission shaft extends out of the planetary gear box through the corresponding through hole.
According to the planetary gear box, the transmission shaft penetrates through the upper box cover of the planetary gear box, and the transmission shaft is in butt fit with the box cover, so that the planetary gear structure in the planetary gear box can be driven to integrally rotate through the transmission shaft in the power transmission process, the planetary gear box structure is simplified, and the transmission shaft can conveniently drive the planetary gear box to rotate.
As a preferable scheme of the present invention, the planetary transmission gear structure includes an input gear which is connected to the rotation shaft portion of the driving motor in a rotation-stop manner, the number of the input gears is one, and the input gear and each of the output gears are in transmission connection by two transmission gears.
According to the utility model, through the arrangement of the structure, the effect of power transmission of the output shaft when the planetary gear box works is realized, and each input gear is in transmission connection with the output gear through two transmission gears, so that the use requirement of the transmission shaft on the transmission gears in the planetary gear box is met.
As a preferable aspect of the present invention, the transmission shaft is provided on a transmission gear connected to the output gear such that a rotation direction of the transmission shaft is opposite to a rotation direction of the output gear.
In the utility model, the assembly connection between the transmission shaft and the transmission gear in the planetary gear box is realized through the structural arrangement.
As a preferable aspect of the present invention, the number of the output gears is six, the number of the transmission shafts is three, and the three transmission shafts are centrosymmetric with respect to a circle center line of the fixed gear.
In the utility model, the number of the output gears is six, and the three transmission shafts are adopted to realize the rotary driving of the planetary gear box, so that the stability of the rotary driving of the planetary gear box through the transmission shafts when the floor grinding machine works is improved.
As a preferable scheme of the utility model, a transmission gear of the transmission shaft is connected in the planetary transmission gear structure. The radius of the transmission gear connected with the transmission shaft is larger than that of other transmission gears.
According to the floor grinding machine, through the structural arrangement, on one hand, the stability of the transmission gear for the rotary driving of the transmission shaft is ensured, and on the other hand, the arrangement of the grinding discs on the planetary gear box is facilitated, so that the floor grinding coverage area of the floor grinding machine during working is enlarged, and the floor grinding machine further has the effect of further improving the grinding efficiency of the floor grinding machine during working.
As a preferable aspect of the present invention, a bearing housing is provided between the output shaft and the housing to seal the output shaft and the housing.
In the utility model, the output shaft and the box body are assembled and sealed by the bearing box, so that the planetary gear box is ensured not to leak oil when working, and the service life of the planetary gear box is prolonged.
As a preferable aspect of the present invention, the housing is provided with a boss at a peripheral position of the output shaft, and the bearing housing is fixed to the housing through the boss.
In the utility model, the bearing box is arranged to be a protruding structure relative to the box body so as to play an external protection role on the planetary gear box, so that when people carry the planetary gear box, the planetary gear box can be supported by the bearing box, and the situation that internal parts of the planetary gear box are damaged due to the arrangement of the planetary gear box during carrying is avoided.
As a preferable scheme of the present invention, the output shaft is connected with an output flange in a way of spline fitting, and the grinding disc is fixed on the output flange, so that the output shaft can drive the grinding disc to make a rotational motion relative to the machine body through the output flange.
In the utility model, the output flange is used for realizing the transmission connection between the output shaft and the grinding disc, and the utility model has the functions of simplifying the structure and facilitating the assembly.
As a preferable scheme of the present invention, a shock pad is provided between the output flange and the grinding disc, and the shock pad is isolated from the output flange and the grinding disc by bushings.
According to the utility model, through the structural arrangement of the damping pad, the assembly position of the grinding disc on the output shaft can be adjusted, so that the use requirement of the floor grinding machine on floor grinding during working is met; simultaneously, keep apart with the bush between shock pad and output flange and the mill respectively, prevent that the shock pad from compressing damage, have extension shock pad life's effect.
Drawings
Fig. 1 is a schematic structural view of a floor grinding machine according to an embodiment of the present invention.
FIG. 2 is an exploded view of the drive motor, fixed gear disk and planetary gearbox of the present invention.
Fig. 3 is a schematic diagram of the structure of the grinding disc assembled on the output gear through the output shaft in the utility model.
Fig. 4 is a cross-sectional view of fig. 3 from another perspective in accordance with the present invention.
10, a body; 20. a drive motor; 30. fixing a gear disc; 40. a planetary gear box; 41. a box body; 411. a boss; 42. a box cover; 421. perforating; 401. an output gear; 402. a transmission gear; 403. An input gear; 50. a grinding disc; 51. an output shaft; 52. an output flange; 53. a shock pad; 501. a bushing; 502. a bolt; 60. a bearing housing; 101. a drive shaft; 102. the gear is rotated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1 to 4, a floor grinding machine according to an embodiment of the present invention includes a machine body 10, a driving motor 20 and a fixed gear 30 disposed on the machine body 10, and a planetary gear box 40.
In the present embodiment, the planetary gear box 40 of the present embodiment has at least five output gears 401, wherein each output gear 401 is connected with one grinding disc 50 through an output shaft 51, so that when the floor grinding machine works, the driving motor 20 can drive the grinding disc 50 through the planetary gear box 40 and simultaneously rotate and drive relative to the machine body 10; in addition, a transmission shaft 101 is connected to a part of the transmission gear 402 in the planetary gear box 40 of the present embodiment, a part of the transmission shaft 101 extends out of the planetary gear box 40, wherein a part of the transmission shaft 101 extending out of the planetary gear box 40 is connected to a rotating gear 102 engaged with the fixed gear disk 30 in a rotation-stop manner, and the driving motor 20 can drive the planetary gear box 40 to rotate relative to the machine body 10 through the transmission shaft 101 by utilizing the mesh engagement between the fixed gear disk 30 and the rotating gear 102. That is, the floor grinding machine according to the present embodiment can realize the rotational driving of the entire planetary gear box 40 in the process of transmitting the power of the driving motor 20 and the grinding disc 50 to the planetary gear box 40 by using the acting force and the reaction force between the rotary gear 102 and the fixed disc 30 and fixing the fixed disc 30 to the machine body 10.
When the floor grinding machine according to the present embodiment is operated, the rotation direction of the planetary gear box 40 is opposite to the rotation direction of the plurality of grinding discs 50, and the acting forces generated on the machine body 10 when the planetary gear box and the grinding discs rotate cancel each other. Realize the self-balancing of this terrace grinder during operation with this for this terrace grinder during operation has five at least mill 50 and grinds the terrace simultaneously, with this improvement to the grinding efficiency of terrace, and avoids the condition emergence of alternately polishing between the mill 50, has the effect that improves mill 50 and go up the abrasive disc (not shown) utilization ratio.
Specifically, the planetary gear box 40 of the present embodiment includes a box body 41, a planetary gear structure disposed in the box body 41, and a box cover 42 covering the box body 41, wherein the box cover 42 is provided with a through hole 421 matching with the transmission shaft 101, and the transmission shaft 101 extends out of the planetary gear box 40 through the corresponding through hole 421. Make this terrace grinder during operation, can utilize the butt cooperation between transmission shaft 101 and the case lid 42, planetary gear structure can drive the holistic rotary motion of this planetary gear box 40 through transmission shaft 101 in planetary gear box 40 at power transmission's in-process like this, has and simplifies this planetary gear box structure, the transmission shaft 101 of being convenient for to this planetary gear box 40 rotary drive's effect. Of course, it should be noted that the assembly relationship between the transmission shaft 101 and the planetary gear box 40 is not limited to that shown in the drawings, and those skilled in the art may arrange an inner cover in the box 41, which is in clearance fit with the transmission shaft 101, and will not be described herein.
In the present embodiment, the planetary transmission gear structure of the present embodiment includes an input gear 403 which is connected to the rotation shaft portion of the driving motor 20 in a rotation stop manner, the number of the input gears 403 is one, and the input gear 403 and each output gear 401 are in transmission connection by two transmission gears 402. Therefore, the function of power transmission on the output shaft 51 when the planetary gearbox 40 works is achieved, and each input gear 403 is in transmission connection with the output gear 401 through two transmission gears 402, so that the use requirement of the transmission shaft 101 on the transmission gears 402 in the planetary gearbox 40 is met.
The drive shaft 101 of the present embodiment is provided on a transmission gear 402 connected to the output gear 401 such that the rotation direction of the drive shaft 101 is opposite to the rotation direction of the output gear 401. Thereby realizing the assembly connection between the transmission shaft 101 and the transmission gear 402 in the planetary gearbox 40.
The number of the transmission shafts 101 in the present embodiment is three, and the three transmission shafts 101 are centrosymmetric with respect to the center line of the fixed gear 30. Make the terrace mill during operation of this embodiment, have three effect points to realize the rotary drive to this planetary gear box 40 to this improves the stability of this terrace mill during operation through transmission shaft 101 to planetary gear box 40 rotary drive.
In the planetary transmission gear structure of the present embodiment, the transmission gear 402 of the transmission shaft 101 is connected, and the radius of the transmission gear 402 connected to the transmission shaft 101 is larger than the radii of the other transmission gears 402. Thereby ensuring the stability of the drive gear 402 for the rotational drive of the drive shaft 101; in addition, through the above structure arrangement, the output gear 401 corresponding to the transmission gear 402 connected with the transmission shaft 101 is more outside than the two adjacent output gears 401, so that the arrangement of the grinding disc 50 on the planetary gear box 40 is facilitated, the coverage area of the floor grinding machine during working is enlarged, and the grinding efficiency of the floor grinding machine during working is further improved.
As a preferable embodiment of the present invention, a bearing housing 60 is provided between the output shaft 51 and the case 41 to seal the output shaft 51 and the case 41. Therefore, the planetary gear box 40 is ensured to be oil-tight when in operation, and the service life of the planetary gear box 40 is prolonged. The sealing structure in the bearing housing 60 of the present embodiment specifically includes an O-ring, a skeletal seal, an oil seal, and the like, and will not be described here.
Specifically, the housing 41 of the present embodiment is provided with a boss 411 at a peripheral position of the output shaft 51, and the bearing housing 60 is fixed to the housing 41 by the boss 411, thereby achieving the assembling connection of the bearing housing 60 to the housing 41.
It can be understood that the present embodiment provides the bearing box 60 as a protruding structure relative to the box body 41 to protect the planetary gear box 40, so that when one carries the planetary gear box 40, one can support the planetary gear box 40 by the bearing box 60, thereby avoiding the occurrence of damage to the internal components of the planetary gear box 40 due to the placement of the planetary gear box 40 during carrying.
An output flange 52 is connected to the output shaft 51 of the present embodiment in a spline fitting manner, and the grinding disc 50 is fixed to the output flange 52, so that the output shaft 51 can drive the grinding disc 50 to rotate relative to the machine body 10 through the output flange 52.
It can be understood that the output flange 52 of the present embodiment is used to realize the transmission connection between the output shaft 51 and the grinding disc 50, and has the advantages of simplified structure and convenient assembly. Of course, it should be noted that the output shaft 51 and the output flange 52 are respectively provided with a key slot, the two key slots correspond to each other, and the key is inserted into the two key slots, so as to realize the key slot matching between the output flange 52 and the output shaft 51, and when the output flange 52 is assembled on the output shaft 51, the output flange 52 partially protrudes out of the end surface of the output shaft 51, and is compressed and limited by a nut and a gasket, which will not be elaborated here.
Here, the cushion pad 53 is provided between the output flange 52 and the grinding disc 50, and the cushion pad 53 is isolated from the output flange 52 and the grinding disc 50 by the bush 501. The mounting position of the grinding disc 50 on the output shaft 51 can be adjusted, so that the use requirement of the floor grinding machine on floor grinding during working is met; meanwhile, the damping pad 53, the output flange 52 and the grinding disc 50 are isolated by the bushings 501 respectively, so that the damping pad 53 is prevented from being damaged by pressure, and the service life of the damping pad 53 is prolonged. It should be noted that the output flange 52 and the grinding disc 50 are fixed by bolts 502, which are not described herein.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The terrace grinding machine is characterized by comprising a machine body, a driving motor and a fixed gear disc which are arranged on the machine body, and a planetary gear box; the planetary gear box is provided with at least five output gears, wherein each output gear is connected with a grinding disc through an output shaft, and the driving motor can drive the grinding discs to rotate relative to the machine body through the planetary gear box; the transmission shaft is connected to a part of transmission gears in the planetary gear box, the part of the transmission shaft extends out of the planetary gear box, a rotating gear meshed with the fixed gear disc is connected to the part of the transmission shaft extending out of the planetary gear box in a rotation stopping mode, the driving motor can drive the planetary gear box to rotate relative to the machine body through the transmission shaft by means of the meshing engagement between the fixed gear disc and the rotating gear, the rotating direction of the planetary gear box is opposite to that of the grinding disc, and acting forces generated on the machine body when the planetary gear box rotates are mutually offset.
2. The floor grinding machine according to claim 1, wherein the planetary gear box comprises a box body, a planetary gear structure arranged in the box body, and a box cover covering the box body, wherein the box cover is provided with a through hole matched with the transmission shaft, and the transmission shaft extends out of the planetary gear box through the corresponding through hole.
3. The floor grinding machine according to claim 2, characterized in that the planetary transmission gear structure comprises an input gear which is in rotation stopping connection with the rotating shaft part of the driving motor, the number of the input gears is one, and the input gear and each output gear are in transmission connection through two transmission gears respectively.
4. The floor grinding machine of claim 2, wherein the drive shaft is provided on a drive gear connected to the output gear such that the drive shaft rotates in a direction opposite to the output gear.
5. The floor grinding machine of claim 4, wherein the number of the output gears is six, the number of the transmission shafts is three, and the three transmission shafts are centrosymmetric with respect to a circle center line of the fixed gear disc.
6. The floor grinding machine according to claim 4, characterized in that a transmission gear of the transmission shaft is connected in the planetary transmission gear structure, and the radius of the transmission gear connected with the transmission shaft is larger than that of other transmission gears.
7. The floor grinding machine of claim 2, wherein a bearing housing is provided between the output shaft and the housing to provide a fitted seal between the output shaft and the housing.
8. The floor grinding machine according to claim 7, wherein the box body is provided with a boss at a peripheral position of the output shaft, and the bearing housing is fixed to the box body through the boss.
9. The floor grinding machine of claim 1, wherein the output shaft is connected with an output flange in a way of spline fitting, and the grinding disc is fixed on the output flange, so that the output shaft can drive the grinding disc to rotate relative to the machine body through the output flange.
10. The floor grinding machine of claim 9, wherein a shock pad is disposed between the output flange and the grinding disc, and the shock pad is isolated from the output flange and the grinding disc by bushings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120650451.5U CN216503920U (en) | 2021-03-30 | 2021-03-30 | Terrace grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120650451.5U CN216503920U (en) | 2021-03-30 | 2021-03-30 | Terrace grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216503920U true CN216503920U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120650451.5U Active CN216503920U (en) | 2021-03-30 | 2021-03-30 | Terrace grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216503920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117961686A (en) * | 2024-03-28 | 2024-05-03 | 福建兴翼智能装备股份有限公司 | Hand-held floor grinding machine and use method thereof |
-
2021
- 2021-03-30 CN CN202120650451.5U patent/CN216503920U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117961686A (en) * | 2024-03-28 | 2024-05-03 | 福建兴翼智能装备股份有限公司 | Hand-held floor grinding machine and use method thereof |
| CN117961686B (en) * | 2024-03-28 | 2024-06-07 | 福建兴翼智能装备股份有限公司 | Hand-held floor grinding machine and use method thereof |
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