CN218945203U

CN218945203U - Planetary ball mill

Info

Publication number: CN218945203U
Application number: CN202222423911.8U
Authority: CN
Inventors: 李开天
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-05-02
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a planetary ball mill, which comprises a frame, a driving assembly, a mounting frame, a transmission gear ring and two grinding assemblies, wherein the frame is provided with two supporting seats; the driving component is arranged on the frame; the mounting frame comprises a rotating shaft and two connecting rods, the rotating shaft is rotationally connected with the two supporting seats, and the other end of the rotating shaft is in transmission connection with an output shaft of the driving assembly; the transmission gear ring is arranged on the frame; the two ends of each grinding component are respectively provided with a supporting shaft and a transmission shaft, the transmission shaft comprises a shaft body and gears sleeved on the shaft body, the supporting shafts and the shaft body are respectively connected with two connecting rods in a rotating mode, and the two gears are meshed with the inner teeth of the transmission gear ring. In the utility model, the driving component drives the grinding component to revolve, the gear and the transmission gear ring are matched to drive the grinding component to rotate, so that the problem of low grinding efficiency of the conventional planetary grinder is effectively solved while the stability of the rotation and revolution motion of the grinding component is ensured.

Description

Planetary ball mill

Technical Field

The utility model relates to the technical field of grinding machine equipment, in particular to a planetary ball mill.

Background

The planetary ball mill is a necessary device for mixing, fine grinding, sample preparation, nano material dispersion, new product development and small-batch production of high and new technical materials.

The Chinese patent No. 202894970U discloses a planetary roller grinder which comprises a frame, a horizontal fixed shaft arranged on the frame, a pair of roller mounting plates arranged on the horizontal fixed shaft, a plurality of roller shafts parallel to the horizontal fixed shaft and uniformly distributed between the two roller mounting plates, a roller sleeved on the roller shafts, planetary gears arranged at the front ends of the roller shafts, a sun gear arranged at the front ends of the horizontal fixed shaft, an intermediate driving wheel arranged between the planetary gears and the sun gear and meshed with the planetary gears and the sun gear respectively, wherein the pair of roller mounting plates are connected with a driving piece through a driving belt, and the grinder adopts a traditional structure that the planetary gears of the conventional planetary roller grinder are connected with a central sun gear belt for driving, so that the stable reliability of the rotary motion of the roller of the planetary roller grinder is effectively improved, but the structure is complex, and the grinding efficiency is low.

Therefore, it is necessary to provide a new planetary ball mill to solve the above technical problems.

Disclosure of Invention

The utility model mainly aims to provide a planetary ball mill, and aims to solve the problem of low grinding efficiency of the conventional planetary ball mill.

In order to achieve the above purpose, the planetary ball mill provided by the utility model comprises a frame, a driving assembly, a mounting frame, a transmission gear ring and two grinding assemblies, wherein the frame is provided with two supporting seats arranged along a first direction; the driving component is arranged on the frame; the mounting frame comprises a rotating shaft and two connecting rods which are perpendicular to the rotating shaft at intervals, the rotating shaft sequentially penetrates through the two supporting seats, the rotating shaft is rotationally connected with the two supporting seats, and the other end of the rotating shaft is connected with an output shaft of the driving assembly; the transmission gear ring is arranged on the frame; the two grinding components are symmetrically distributed on two sides of the rotating shaft, the two ends of each grinding component are respectively provided with a supporting shaft and a transmission shaft, each transmission shaft comprises a shaft body and gears sleeved on the shaft body, the supporting shafts and the shaft body are respectively and correspondingly connected with the two connecting rods in a rotating mode, and the two gears are meshed with the inner teeth of the transmission gear ring.

Optionally, the drive assembly includes driving piece, action wheel, follow driving wheel and drive belt, the driving piece install in the frame, the action wheel cover is located on the output shaft of driving piece, follow driving wheel cover is located in the pivot, the drive belt is around locating the action wheel with follow driving wheel periphery.

Optionally, the transmission ratio of the transmission gear ring to the gear is less than 1.

Optionally, a clamping groove is formed in one end, close to the transmission gear ring, of the support shaft, and a limiting groove corresponding to the clamping groove is formed in the inner wall of the gear; the transmission shaft further comprises a limit key, and two sides of the limit key are respectively clamped into the clamping groove and the limit groove.

Optionally, the supporting seat comprises a seat body, a bearing and a bearing cover, wherein the seat body is provided with a mounting groove, the bearing is arranged in the mounting groove, the bearing cover is arranged on the bearing and is connected with the seat body, and the rotating shaft is sleeved in the inner ring of the bearing.

Optionally, a storage cavity with an opening at one side is arranged in the frame, and the mounting frame is arranged at the opening side.

Optionally, both sides of the transmission gear ring are provided with mounting plates, each mounting plate is connected with the rack through a fastener, and the lowest height of the internal teeth of the transmission gear ring is greater than the wall height of the storage cavity.

Optionally, the grinding component further comprises a grinding cylinder, a mounting frame and a plurality of locking pieces, the supporting shaft and the shaft body are respectively arranged at two ends of the mounting frame, the mounting frame encloses into a mounting space, the grinding cylinder is arranged in the mounting space, the locking pieces are matched to clamp the grinding cylinder, and two ends of the locking pieces are connected to the mounting frame.

Optionally, the support shaft is detachably connected with the connecting rod.

Optionally, the frame is equipped with supporting seat and strengthening rib, the supporting seat level set up in the frame, the strengthening rib connect in between the supporting seat with the frame, the driving piece bearing in on the supporting seat.

According to the technical scheme, the planetary ball mill comprises a frame, a driving assembly, a mounting frame, a transmission gear ring and two grinding assemblies, wherein the driving assembly is mounted on the frame, two supporting seats are arranged on the frame along a first direction, the mounting frame comprises a rotating shaft and two connecting rods which are perpendicular to the rotating shaft at intervals, the rotating shaft sequentially penetrates through the two supporting seats and is in rotating connection with the two supporting seats, one end of the rotating shaft is connected with an output shaft of the driving assembly, the two grinding assemblies are symmetrically arranged on two sides of the rotating shaft, two ends of each grinding assembly are respectively provided with a supporting shaft and a transmission shaft, the transmission shafts comprise a shaft body and gears sleeved on the shaft body, the supporting shafts and the shaft body are respectively in rotating connection with the two connecting rods, the two gears are meshed with the inner teeth of the transmission gear ring, the driving assembly drives the rotating shaft to rotate around the rotating shaft through the connecting rods, and under the cooperation of the gears and the transmission gear ring, so that the rotating shaft of the grinding assembly rotates, the revolution of the grinding assembly is realized through the cooperation of the gears and the transmission gear ring, the rotating assembly is driven by the driving assembly, the rotating of the grinding assembly, the structure is simple, the stability of the revolution and the grinding assembly is ensured, and the grinding efficiency is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present 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, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a planetary ball mill according to an embodiment of the present utility model;

fig. 2 is a schematic view of a planetary grinder according to another embodiment of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "two" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The utility model provides a planetary ball mill, and aims to solve the problem of low grinding efficiency of the conventional planetary ball mill.

As shown in fig. 1, in the present utility model, a planetary ball mill 100 includes a frame 10, a driving assembly 20, a mounting frame 30, a transmission ring gear 40, and two grinding assemblies 50, the frame 10 being provided with two support seats 11 arranged in a first direction; the drive assembly 20 is mounted on the frame 10; the mounting frame 30 comprises a rotating shaft 31 and two connecting rods 32 which are perpendicular to the rotating shaft 31 at intervals, the rotating shaft 31 sequentially penetrates through the two supporting seats 11, the rotating shaft 31 is rotationally connected with the two supporting seats 11, and the other end of the rotating shaft 31 is connected with an output shaft of the driving assembly 20; the transmission gear ring 40 is arranged on the frame 10; the two grinding assemblies 50 are symmetrically distributed on two sides of the rotating shaft 31, two ends of each grinding assembly 50 are respectively provided with a supporting shaft 54 and a transmission shaft 55, the transmission shaft 55 comprises a shaft body 551 and gears 552 sleeved on the shaft body 551, the supporting shafts 54 and the shaft body 551 are respectively and correspondingly connected with the two connecting rods 32 in a rotating mode, and the two gears 552 are meshed with the inner teeth of the transmission gear ring 40. In an embodiment, the driving component 20 drives the rotating shaft 31 to rotate on the two supporting seats 11, the two grinding components 50 are symmetrically arranged at two sides of the rotating shaft 31 and are respectively connected with the two connecting rods 32 in a rotating way, so that the connecting rods 32 drive the two grinding components 50 to revolve around the rotating shaft 31, the two ends of each grinding component 50 are respectively provided with a supporting shaft 54 and a driving shaft 55, the driving shaft 55 comprises a shaft body 551 and a gear 552 sleeved on the shaft body 551, the supporting shaft 54 and the shaft body 551 are respectively and correspondingly connected with the two connecting rods 32 in a rotating way, the two gears 552 are meshed with the internal teeth of the driving gear ring 40, when the connecting rods 32 drive the two grinding components 50 to revolve around the rotating shaft 31, the two gear 552 rings also revolve around the rotating shaft 31, and the gear 552 rotates in the driving gear ring 40 to drive the gears 552 to rotate around the rotating shaft 40, and the gears 552 drive the grinding components 50 through the shaft body 551.

Specifically, the driving assembly 20 comprises a driving piece 21, a driving wheel 22, a driven wheel 23 and a transmission belt 24, wherein the driving piece 21 is arranged on the frame 10, the driving wheel 22 is sleeved on an output shaft of the driving piece 21, the driven wheel 23 is sleeved on a rotating shaft 31, and the transmission belt 24 is wound on the peripheries of the driving wheel 22 and the driven wheel 23. The output shaft of the driving piece 21 is connected with the driving wheel 22, the driving piece 21 drives the driving wheel 22 to rotate, the driving wheel 22 drives the driven wheel 23 to rotate through the transmission belt 24, the driven wheel 23 is sleeved on the rotating shaft 31, the driven wheel 23 drives the rotating shaft 31 to rotate, the rotating shaft drives the two grinding assemblies 50 to perform revolution motion, impact and vibration can be relieved through transmission of the transmission belt 24, and therefore stability of motion is guaranteed, and noise is reduced.

Based on the above embodiment, the gear ratio of the gear 552 to the transmission ring gear 40 is less than 1. The transmission gear ring 40 is fixedly arranged on the frame 10, the connecting rod 32 drives the two gears 552 to revolve around the rotating shaft 31, the gears 552 rotate in the transmission gear ring 40, meanwhile, the transmission gear ring 40 drives the gears 552 to rotate, the gears 552 drive the grinding assembly 50 to rotate through the shaft body 551, the transmission ratio of the gears 552 to the transmission gear ring 40 is smaller than 1, and the transmission gear ring 40 drives the gears 552 to do acceleration motion, so that the rotation speed of the grinding assembly 50 is accelerated, the impact force and the grinding force of the planetary grinding machine are enhanced, grinding media and materials are fully ground, and the grinding efficiency is further improved.

Further, a clamping groove is formed at one end of the supporting shaft 54, which is close to the transmission gear ring 40, and a limit groove which is arranged corresponding to the clamping groove is formed in the inner wall of the gear 552; the transmission shaft 55 further comprises a limit key, and two sides of the limit key are respectively clamped into the clamping groove and the limit groove. The gear 552 is sleeved at the position on the support shaft 54, which is provided with the clamping groove, the limiting groove on the gear 552 and the clamping groove form a space matched with the limiting key, and two sides of the limiting key are respectively clamped into the clamping groove and the limiting groove, so that the gear 552 is limited, and the gear 552 drives the transmission shaft 55 to rotate through the limiting key to realize the rotation of the grinding assembly 50.

In the present utility model, the supporting seat 11 includes a seat body 111, a bearing 112 and a bearing cover 113, the seat body 111 is provided with a mounting groove, the bearing 112 is disposed in the mounting groove, the bearing cover 113 is covered on the bearing 112 and connected with the seat body 111, and the rotating shaft 31 is sleeved in the inner ring of the bearing 112. The pivot 31 overlaps in proper order and locates in the bearing 112 inner race of two supporting seats 11, the bearing cap 113 covers and locates on the bearing 112 to be connected with pedestal 111 through the fastener, adopt detachable mounting structure both can conveniently dismantle, avoided the too heavy condition that appears breaking of supporting seat 11 bearing simultaneously, in a preferred embodiment, bearing 112 is ball bearing 112, ball bearing 112 has changed the friction mode of bearing 112, adopts rolling friction, this mode more effectually has reduced the friction phenomenon between the bearing 112 face, has improved mechanical transmission efficiency.

In addition, a housing chamber 12 having an opening at one side is provided in the housing 10, and a mounting bracket 30 is provided at the opening side. The accommodating cavity 12 is used for accommodating the ground material, and when the grinding assembly 50 rotates to the lowest position, the distance between the grinding assembly 50 and the bottom wall of the accommodating cavity 12 is larger than the height of the side wall of the accommodating cavity 12, so that tool movement affecting the grinding assembly 50 when materials are accumulated is avoided.

In a preferred embodiment, the drive ring gear 40 is provided with mounting plates on both sides, each of which is connected to the frame 10 by means of a fastener, the lowest height of the internal teeth of the drive ring gear 40 being greater than the wall height of the receiving cavity 12. The transmission gear ring 40 both sides are installed on frame 10 through the mounting panel, and the both sides mounting panel has still strengthened the joint strength of drive gear 552 with accomodate the chamber 12 inner wall when providing support for transmission gear ring 40, and the minimum height of the internal tooth of transmission gear ring 40 is greater than the wall height of accomodating chamber 12, has avoided grinding material to pile up in accomodating chamber 12 and cover the internal tooth of transmission gear ring 40 to influence the meshing of the internal tooth of gear 552 and transmission gear ring 40, guaranteed the stability of the autorotation motion of grinding component 50.

As shown in fig. 2, the grinding assembly 50 further includes a grinding cylinder 51, a mounting frame 52 and a plurality of locking members 53, wherein the supporting shaft 54 and the shaft body 551 are respectively disposed at two ends of the mounting frame 52, the mounting frame 52 encloses into a mounting space, the grinding cylinder 51 is disposed in the mounting space, the plurality of locking members 53 cooperate to clamp the grinding cylinder 51, and two ends of the locking members 53 are connected to the mounting frame 52. The supporting shaft 54 and the shaft body 551 are respectively connected to two ends of the mounting frame 52, one ends of the supporting shaft 54 and the shaft body 551, which are far away from the mounting frame 52, are respectively and correspondingly connected with the connecting rod 32 in a rotating way, a mounting space for placing the grinding drum 51 is formed by the inner periphery of the mounting frame 52, a plurality of locking pieces 53 are clamped on the periphery of the grinding drum 51, and two ends of the locking pieces 53 are connected to the mounting frame 52, so that the grinding drum 51 is fixed in the mounting space, the locking pieces 53 are used for fixing the grinding drum 51 in the mounting frame 52, the supporting shaft 54 and the transmission shaft 55 at two ends of the grinding assembly 50 are prevented from being broken due to long-term operation and large centrifugal force during grinding operation, the plurality of locking pieces 53 are matched and clamped with the periphery of the grinding drum 51 to ensure the connection strength of the grinding drum 51 and the mounting frame 52, the grinding drum 51 is prevented from being separated from the mounting frame 52 during grinding operation, meanwhile, the mounting frame 52 can effectively disperse the stress of the supporting shaft 54 and the transmission shaft 55, the service life of the planetary grinder is prolonged, the structural stability of the planetary grinder is enhanced, and the safety of the operation is ensured.

Wherein each support shaft 54 is detachably connected to the connecting rod 32. Each supporting shaft 54 is installed on connecting rod 32 through the assembly plate respectively, and each assembly plate is connected with connecting rod 32 through the fastener, is equipped with the bearing between each assembly plate and the connecting rod 32, and the inner circle of bearing is located to the supporting shaft 54 cover, and each supporting shaft 54 all is connected with connecting rod 32 detachably and is convenient for planetary grinder's cleanness and maintenance, can save space simultaneously when transporting.

In addition, the frame 10 is provided with a bearing seat 13 and reinforcing ribs, the bearing seat 13 is horizontally arranged on the frame 10, the reinforcing ribs are connected between the bearing seat 13 and the frame 10, and the driving piece 21 is supported on the bearing seat 13. The bearing bracket 13 provides a bearing function for the driving piece 21, and the reinforcing ribs are arranged between the bearing bracket 13 and the frame 10, so that the connection strength between the bearing bracket 13 and the frame 10 is enhanced, and the transmission stability of the driving piece 21 is ensured.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A planetary ball mill, characterized in that it comprises:

the rack is provided with two supporting seats arranged along a first direction;

the driving assembly is mounted on the frame;

the mounting frame comprises a rotating shaft and two connecting rods which are perpendicular to the rotating shaft at intervals, the rotating shaft sequentially penetrates through the two supporting seats, the rotating shaft is rotationally connected with the two supporting seats, and the other end of the rotating shaft is connected with an output shaft of the driving assembly;

the transmission gear ring is arranged on the rack;

the two grinding assemblies are symmetrically distributed on two sides of the rotating shaft, supporting shafts and transmission shafts are respectively arranged at two ends of each grinding assembly, each transmission shaft comprises a shaft body and gears sleeved on the shaft body, the supporting shafts and the shaft bodies are correspondingly connected with the two connecting rods in a rotating mode, and the two gears are meshed with inner teeth of the transmission gear ring.

2. A planetary ball mill according to claim 1, wherein the driving assembly comprises a driving member, a driving wheel, a driven wheel and a transmission belt, the driving member is mounted on the frame, the driving wheel is sleeved on an output shaft of the driving member, the driven wheel is sleeved on the rotating shaft, and the transmission belt is wound around the peripheries of the driving wheel and the driven wheel.

3. A planetary ball mill according to claim 2, wherein the ratio of the drive ring gear to the gear is less than 1.

4. A planetary ball mill according to claim 2, wherein a clamping groove is formed in one end of the support shaft, which is close to the transmission gear ring, and a limit groove which is arranged corresponding to the clamping groove is formed in the inner wall of the gear; the transmission shaft further comprises a limit key, and two sides of the limit key are respectively clamped into the clamping groove and the limit groove.

5. A planetary ball mill according to claim 1, wherein the support base comprises a base body, a bearing and a bearing cover, the base body is provided with a mounting groove, the bearing is arranged in the mounting groove, the bearing cover is arranged on the bearing and connected with the base body, and the rotating shaft is sleeved in an inner ring of the bearing.

6. A planetary ball mill according to claim 1, wherein a housing chamber having an opening on one side is provided in the housing, and the mounting bracket is provided on the open side.

7. A planetary ball mill according to claim 6, wherein mounting plates are provided on both sides of the drive ring gear, each of the mounting plates is connected to the frame by a fastener, and the lowest height of the internal teeth of the drive ring gear is greater than the wall height of the receiving cavity.

8. A planetary ball mill according to any one of claims 1 to 7, wherein the grinding assembly further comprises a grinding cylinder, a mounting frame and a plurality of locking members, the support shaft and the shaft body are respectively arranged at two ends of the mounting frame, the mounting frame encloses a mounting space, the grinding cylinder is arranged in the mounting space, the plurality of locking members are matched to clamp the grinding cylinder, and two ends of each locking member are connected to the mounting frame.

9. A planetary ball mill according to any one of claims 1 to 7, wherein the support shaft is detachably connected to the connecting rod.

10. A planetary ball mill according to any one of claims 2 to 4, wherein the frame is provided with a support base and reinforcing bars, the support base being arranged horizontally on the frame, the reinforcing bars being connected between the support base and the frame, the driving members being supported on the support base.