CN218796233U

CN218796233U - High-concentricity center shaft fixing structure of grinding machine

Info

Publication number: CN218796233U
Application number: CN202223285303.1U
Authority: CN
Inventors: 陈歌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-07
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a high concentricity grind quick-witted axis fixed knot constructs belongs to the grinding field, include: the supporting mechanism is arranged in the combined mechanism in a penetrating way; the first no tolerance bearing is sleeved on one side of the outer wall of the combined mechanism and is connected to the supporting mechanism; the second non-tolerance bearing is sleeved on the other side of the outer wall of the combined mechanism and is connected to the supporting mechanism; the shaft sleeve mechanism is sleeved at the middle end of the outer wall of the combined mechanism and is connected to the supporting mechanism; the auxiliary mechanism is connected below the supporting mechanism in a threaded manner; and the mounting top cover is arranged on the top of the supporting mechanism and is connected with an external driving device. The utility model discloses a setting of first no work difference bearing, second no work difference bearing makes the combined mechanism carry out the rotatory work of concentric cylinder axle in the supporting mechanism, keeps combined mechanism and complementary unit to be located same centre of a circle to reduce and lead to the skew of combined mechanism after using for a long time, reduce the condition that the pulverization granule is not of uniform size.

Description

High-concentricity center shaft fixing structure of grinding machine

Technical Field

The utility model belongs to the technical field of grind, more specifically say, relate to a machine axis fixed knot that grinds of high concentricity constructs.

Background

The grinding machine is a mechanical device for grinding large articles into small particles, wherein during the grinding process of the grinding machine, a grinding head is usually rotated to damage materials into powder on the grinding head and a grinding disc, the grinding head is connected to one end of a central shaft of the grinding machine, the other side of the central shaft of the grinding machine is connected with a driving device, and the grinding head is rotated by the driving device.

As published (bulletin) No.: CN209864676U, the utility model relates to the technical field of mechanical equipment, especially, be a grinder, including powder storehouse and the medicine storehouse of installing in powder storehouse top, install grinding assembly in the medicine storehouse, grinding assembly is by the axis, the setting is at the grinding core of axis tip and set up at another tip of axis's fixture block component, the below of grinding core is equipped with the movable rod, the movable rod overcoat is equipped with the spring, the below of movable rod is equipped with first abrasive sheet, adjusting device is installed to the below of first abrasive sheet, adjusting device includes the second abrasive sheet, second abrasive sheet one side bonds through glue has the regulating plug, adjusting knob is installed to regulating plug one side, the top in medicine storehouse is equipped with the storehouse cap, the handle is installed to the top in storehouse cap, the utility model discloses a grinding assembly can grind into powdered with the medicine granule, effectively prevents that the medicine granule is too big, easily the throat causes the medical science of chocking to choke, is favorable to reducing personnel's work load, facilitates for patient and medical staff.

The shaft fixing structure of the existing grinding machine has the following defects at present:

the connection part of a main shaft rod and a shell of the existing grinding machine center shaft has deviation due to abrasion and the like in long-term rotating work, so that the main shaft rod has swinging tolerance during work, ground materials cannot be completely refined when being pulverized, and pulverized particles are different in size, so that how to provide a grinding machine center shaft fixing structure for reducing the swinging of the main shaft rod with high concentricity is particularly important.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide a grind quick-witted axis fixed knot of high concentricity constructs to solve the problem that proposes among the above-mentioned background art.

2. Technical scheme

A high concentricity grinding machine center shaft fixing structure comprises: the supporting mechanism is arranged in the supporting mechanism in a penetrating way; the first no tolerance bearing is sleeved on one side of the outer wall of the combined mechanism and is connected to the supporting mechanism; the second non-tolerance bearing is sleeved on the other side of the outer wall of the combined mechanism and is connected to the supporting mechanism; the middle end of the outer wall of the combined mechanism is sleeved with the shaft sleeve mechanism and is connected with the supporting mechanism; the auxiliary mechanism is connected below the supporting mechanism in a threaded manner; a mounting top cover arranged on the top of the supporting mechanism and connected with an external driving device; the combined mechanism and the supporting mechanism are kept coaxial in center through the first no tolerance bearing, the second no tolerance bearing and the supporting mechanism.

Preferably, the support mechanism includes: a positioning sleeve disposed outside the combining mechanism; the clamping sleeve is arranged on the inner wall of the positioning sleeve; at least three reinforcing rib blocks are uniformly distributed on the inner wall of the clamping sleeve at equal intervals in an annular shape; the middle shaft sleeve is fixedly arranged at the end part of the reinforcing rib block, and a separation block is fixedly arranged at the upper end of the inner wall of the middle shaft sleeve; the occluding block is fixedly arranged on the inner wall of the middle shaft sleeve; and the limiting groove is arranged below the meshing block and is connected to the middle shaft sleeve.

Preferably, the combining mechanism comprises: the main shaft rod penetrates through the inner wall of the middle shaft sleeve, a clamping groove is formed in the upper end of the outer wall of the main shaft rod, and the main shaft rod is rotatably connected with the middle shaft sleeve through a first no tolerance bearing and a second no tolerance bearing; the limiting ring is arranged in the clamping groove; a spacer disposed below the stop collar; a flat bearing disposed below the spacer; and the grinding head is arranged at the bottom of the main shaft rod through a mounting buckle.

Preferably, the bushing mechanism includes: the auxiliary shaft sleeve is arranged at the middle end of the outer wall of the main shaft rod, and two ends of the auxiliary shaft sleeve are respectively attached to the first no tolerance bearing and the second no tolerance bearing; the clamping teeth are fixedly arranged at the bottom of the auxiliary shaft sleeve and are narrow at the top and wide at the bottom; and the dislocation groove is formed at the bottom of the inner wall of the auxiliary shaft sleeve.

Preferably, the assist mechanism includes: a top cover arranged below the second slip-free bearing; an auxiliary ring block disposed below the top cover; a grinding disc arranged below the auxiliary ring block; the collecting tank body is arranged on the outer wall of the grinding disc and connected to the grinding head, and the collecting tank body is in threaded connection with the positioning sleeve.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a setting of first no work difference bearing, second no work difference bearing makes the combined mechanism carry out the rotatory work of concentric cylinder axle in the supporting mechanism, keeps combined mechanism and complementary unit to be located same centre of a circle to reduce long-term use back, lead to the problem of combined mechanism skew because of the circumstances such as wearing and tearing, reduce the condition that the pulverization granule is not of uniform size.

2. The utility model discloses an auxiliary shaft sleeve wears to locate in the well axle sleeve and with the contact of first passive poor bearing bottom surface, the cooperation is narrow down wide form latch joint in the spacing groove simultaneously, carry out the stability of keeping to first passive poor bearing, the condition of sliding dislocation about avoiding first passive poor bearing to appear, and simultaneously in the slidable mounting process, the cooperation interlock piece carries out the interlock to the dislocation groove top, carry out secondary joint auxiliary shaft sleeve, further improve the stability of auxiliary shaft sleeve joint.

3. The utility model discloses a top cap with hold the sleeve with adding mode fixed connection such as welding, make top cap top and the no business difference bearing bottom surface of second contact to no business difference bearing of second comes holding stability, avoids the no business difference bearing of second to appear the condition of sliding dislocation from top to bottom.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic diagram of the overall explosion structure of the present invention;

fig. 3 is a schematic view of a three-dimensional structure of the supporting mechanism of the present invention;

fig. 4 is a schematic sectional structure view of the supporting mechanism of the present invention;

fig. 5 is a schematic perspective view of the shaft sleeve mechanism of the present invention;

fig. 6 is a schematic view of the installation structure of the present invention;

fig. 7 is a schematic view of a partially enlarged structure at a position in fig. 6 according to the present invention.

The reference numbers in the figures illustrate: 1. a support mechanism; 101. a positioning sleeve; 102. holding the sleeve; 103. reinforcing rib blocks; 104. a middle shaft sleeve; 105. an occluding block; 106. a limiting groove; 2. a combination mechanism; 201. a main shaft rod; 202. a limiting ring; 203. a gasket; 204. a flat bearing; 205. grinding heads; 3. a first no tolerance bearing; 4. a second slip-free bearing; 5. a shaft sleeve mechanism; 501. an auxiliary shaft sleeve; 502. clamping teeth; 503. a dislocation groove; 6. an auxiliary mechanism; 601. a top cover; 602. an auxiliary ring block; 603. a grinding disc; 604. collecting the tank body; 7. and (5) installing a top cover.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-7, the present invention provides a technical solution: a high concentricity grinding machine center shaft fixing structure comprises: the supporting mechanism 1 and the combined mechanism 2 are arranged in the supporting mechanism 1 in a penetrating way; the first dead-man bearing 3 is sleeved on one side of the outer wall of the combined mechanism 2 and is connected to the supporting mechanism 1; the second non-tolerance bearing 4 is sleeved on the other side of the outer wall of the combined mechanism 2 and is connected to the supporting mechanism 1; the shaft sleeve mechanism 5 is sleeved at the middle end of the outer wall of the combined mechanism 2 and is connected to the supporting mechanism 1; the auxiliary mechanism 6 is connected below the supporting mechanism 1 in a threaded manner; a mounting top cover 7 arranged on the top of the support mechanism 1 and connected with an external driving device;

the combination mechanism 2 is kept coaxial with the support mechanism 1 through a first tolerance-free bearing 3 and a second tolerance-free bearing 4. The utility model discloses a setting of first no work difference bearing 3, second no work difference bearing 4 makes the rotary work that combined mechanism 2 carries out concentric barrel axle in supporting mechanism 1, keeps combined mechanism 2 and complementary unit 6 to be located same centre of circle to reduce long-term the back of using, lead to the problem of 2 squints of combined mechanism because of the circumstances such as wearing and tearing, reduce the condition that the pulverization granule is not of uniform size.

Specifically, the support mechanism 1 includes: a positioning sleeve 101 arranged outside the combining mechanism 2; a clamping sleeve 102 arranged on the inner wall of the positioning sleeve 101; at least three reinforcing rib blocks 103 are uniformly distributed on the inner wall of the clamping sleeve 102 at equal intervals in an annular shape; the middle shaft sleeve 104 is fixedly arranged at the end part of the reinforcing rib block 103, wherein the upper end of the inner wall of the middle shaft sleeve 104 is fixedly provided with a separation block; the bite block 105 is fixedly arranged on the inner wall of the middle shaft sleeve 104; a limit groove 106 disposed below the bite block 105 and coupled to the center shaft sleeve 104.

Further, the combining mechanism 2 includes: the main shaft rod 201 penetrates through the inner wall of the middle shaft sleeve 104, wherein a clamping groove is formed in the upper end of the outer wall of the main shaft rod 201, and the main shaft rod 201 is rotatably connected with the middle shaft sleeve 104 through the first no tolerance bearing 3 and the second no tolerance bearing 4; a stop collar 202 disposed within the slot; a spacer 203 disposed below the stop collar 202; a plane bearing 204 disposed below the spacer 203; the grinding head 205 is arranged at the bottom of the spindle rod 201 through a mounting buckle. The utility model discloses a setting up of flat bearing 204 reduces gasket 203 to the main shaft 201 rotational friction power.

Note that the boss mechanism 5 includes: the auxiliary shaft sleeve 501 is arranged at the middle end of the outer wall of the main shaft rod 201, and two ends of the auxiliary shaft sleeve 501 are respectively attached to the first no tolerance bearing 3 and the second no tolerance bearing 4; the plurality of latch teeth 502 are fixedly arranged at the bottom of the auxiliary shaft sleeve 501, and the latch teeth 502 are narrow in upper part and wide in lower part; the offset groove 503 is formed in the bottom of the inner wall of the auxiliary shaft sleeve 501. The utility model discloses an auxiliary shaft sleeve 501 wears to locate in the well axle sleeve 104 and with the contact of the 3 bottom surfaces of first idle bearing, the cooperation is narrow wide form latch 502 joints in spacing groove 106 down simultaneously, carry out stability keeping to first idle bearing 3, the condition of sliding dislocation about avoiding first idle bearing 3 to appear, and simultaneously in the slidable mounting process, cooperation interlock piece 105 carries out the interlock to dislocation groove 503 top, carry out secondary joint auxiliary shaft sleeve 501, further improve the stability of auxiliary shaft sleeve 501 joint.

In addition to this, the assist mechanism 6 includes: a top cover 601 arranged below the second no tolerance bearing 4; an auxiliary ring block 602 disposed below the top cover 601; a grinding disc 603 arranged below the auxiliary ring block 602; and a collection tank 604 which is arranged on the outer wall of the grinding disc 603 and is connected with the grinding head 205, and the collection tank 604 is in threaded connection with the positioning sleeve 101. The utility model discloses a top cap 601 with hold sleeve 102 and pass through mode fixed connection such as welding, make top cap 601 top and the no business difference bearing 4 bottom surface of second contact to no business difference bearing 4 of second comes the stability, avoids the no business difference bearing 4 of second to appear the condition of sliding dislocation from top to bottom.

The working principle is as follows: firstly, a high-concentricity middle shaft fixing structure of a grinding machine has high adaptability and can be effectively used for grinding coffee, beans, medicines and the like, wherein a collection tank body 604 which is adapted according to the requirement is selected to be installed and connected with a grinding disc 603 and a grinding head 205, a main shaft rod 201 is installed, the main shaft rod 201 is inserted into a middle shaft sleeve 104, a plane bearing 204 is arranged on the main shaft rod 201 from top to bottom and is jointed with the top of a separation block, then a gasket 203 is installed, the gasket 203 is installed in a clamping groove through a tool such as a caliper and is used for limiting the main shaft rod 201, then a first no-tolerance bearing 3 is arranged from bottom to top to penetrate through the main shaft rod 201 and is jointed with the bottom of the separation block, then a combined mechanism 2 made of metal can be expanded by heat and contraction of liquid nitrogen and then is inserted into the main shaft rod 201 to be matched with a clamping tooth 502 which is narrow at the top and wide at the bottom to be clamped in a limiting groove 106 to keep the stability of the first no-tolerance bearing 3, the situation that the first unsmooth bearing 3 slides and misplaces up and down is avoided, meanwhile, in the sliding installation process, the top of the dislocation groove 503 is occluded by the engagement block 105 in a matching mode to clamp the auxiliary shaft sleeve 501 for the second time, the clamping stability of the auxiliary shaft sleeve 501 is further improved, then the second unsmooth bearing 4 is installed at the bottom of the middle shaft sleeve 104, the top cover 601 is fixedly connected with the processing sleeve 102 in a welding mode and the like, the top of the top cover 601 is contacted with the bottom of the second unsmooth bearing 4, the stability of the second unsmooth bearing 4 is kept, the situation that the second unsmooth bearing 4 slides and misplaces up and down is avoided, then the second unsmooth bearing is installed at the bottom of the middle shaft sleeve 104 through the rotary collecting tank body 604, then the top of the main shaft rod 201 of the installation top cover 7 can be installed, an external driving device such as a handle or a motor set and the like is freely installed and connected with the installation top cover 7, the middle shaft fixing structure of the utility model can be used on a hand grinder and an electric bean grinder; through external drive arrangement, drive installation top cap 7, main shaft rod 201 rotation, cooperation strengthening rib block 103 is fixed to be set up concentric coaxial well sleeve 104 department and keeps the stability of main shaft rod 201 rotation, can place coffee, beans, medicine in strengthening rib block 103 formation dead slot in the in-service use, fall into mill 603 through the hole of installation top cap 7 and carry out the grinding work.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high concentricity's grinding machine axis fixed knot constructs which characterized in that includes:

a supporting mechanism (1) is arranged on the frame,

the combined mechanism (2) is arranged in the supporting mechanism (1) in a penetrating way;

the first clearance-free bearing (3) is sleeved on one side of the outer wall of the combined mechanism (2) and is connected to the supporting mechanism (1);

the second tolerance-free bearing (4) is sleeved on the outer wall of the combined mechanism (2), and the other side of the second tolerance-free bearing is connected to the supporting mechanism (1);

the shaft sleeve mechanism (5) is sleeved at the middle end of the outer wall of the combined mechanism (2) and is connected to the supporting mechanism (1);

the auxiliary mechanism (6) is connected below the supporting mechanism (1) in a threaded manner;

a mounting cap (7) arranged on top of the support mechanism (1) and coupled to an external drive;

the combined mechanism (2) keeps the center coaxial with the supporting mechanism (1) through the first no tolerance bearing (3) and the second no tolerance bearing (4).

2. A high concentricity grinding mill center shaft fixing structure according to claim 1, wherein the supporting mechanism (1) comprises:

a positioning sleeve (101) arranged outside the combining means (2);

a clamping sleeve (102) arranged on the inner wall of the positioning sleeve (101);

at least three reinforcing rib blocks (103) which are annularly and uniformly distributed on the inner wall of the clamping sleeve (102) at equal intervals;

a middle shaft sleeve (104) fixedly arranged at the end part of the reinforcing rib block (103),

wherein, the upper end of the inner wall of the middle shaft sleeve (104) is fixedly provided with a separation block;

the occlusion block (105) is fixedly arranged on the inner wall of the central shaft sleeve (104);

a limit groove (106) disposed below the bite block (105) coupled to the center shaft sleeve (104).

3. A high concentricity grinding mill central shaft fixing structure according to claim 2, wherein the combination mechanism (2) comprises:

a main shaft rod (201) which is arranged on the inner wall of the middle shaft sleeve (104) in a penetrating way,

wherein, the upper end of the outer wall of the main shaft rod (201) is provided with a clamping groove,

the main shaft rod (201) is rotatably connected with the middle shaft sleeve (104) through a first clearance-free bearing (3) and a second clearance-free bearing (4);

a stop collar (202) disposed within the clamp slot;

a shim (203) arranged below the stop collar (202);

a planar bearing (204) arranged below the shim (203);

and the grinding head (205) is arranged at the bottom of the main shaft rod (201) through a mounting buckle.

4. A high concentricity grinding machine center shaft fixing structure according to claim 3, wherein the bushing mechanism (5) comprises:

an auxiliary shaft sleeve (501) arranged at the middle end of the outer wall of the main shaft rod (201),

moreover, two ends of the auxiliary shaft sleeve (501) are respectively attached to the first no tolerance bearing (3) and the second no tolerance bearing (4);

a plurality of clamping teeth (502) fixedly arranged at the bottom of the auxiliary shaft sleeve (501),

the latch (502) is narrow at the top and wide at the bottom;

and the dislocation groove (503) is formed at the bottom of the inner wall of the auxiliary shaft sleeve (501).

5. A high concentricity grinding mill shaft fixing structure according to claim 4, wherein the auxiliary mechanism (6) comprises:

a top cover (601) arranged below the second slip free bearing (4);

an auxiliary ring block (602) arranged below the top cover (601);

a grinding disc (603) arranged below the auxiliary ring block (602);

a collection tank (604) disposed at an outer wall of the grinding disc (603) coupled to the grinding head (205),

and the collecting tank body (604) is in threaded connection with the positioning sleeve (101).