CN214445291U

CN214445291U - Grinder convenient to change grinding wheel

Info

Publication number: CN214445291U
Application number: CN202120584944.3U
Authority: CN
Inventors: 曹红节; 曹红霞
Original assignee: Shanghai Zhengyan Precision Machinery Co ltd
Current assignee: Shanghai Zhengyan Precision Machinery Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-10-22
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a grinder convenient to change grinding wheel, the on-line screen storage device comprises a base, the support frame bottom is cup jointed in the slip of base top surface, support frame top rigid coupling motor storehouse, rigid coupling biax motor in the motor storehouse, two sleeves of motor storehouse both sides rigid coupling respectively, the sleeve pipe is located the first change of motor storehouse outside one end rigid coupling, biax motor pivot department passes sleeve pipe and first change the ring and is located the motor storehouse outside and cup joint the grinding wheel, biax motor pivot department rigid coupling integral key shaft. The utility model discloses when needing to change the grinding wheel, only need swivel nut, can demolish the protection casing, later with the grinding wheel follow integral key shaft demolish can, need not to use the bolt fastening, dismantle swiftly rapidly, facilitate the use. The utility model discloses protection casing department is provided with L type groove, and L type inslot sliding connection activity protection casing can change the area of protection casing through the activity protection casing that slides, and then adjusts the exposed area of grinding wheel piece, is fit for the work piece use of equidimension not, and practical value is high.

Description

Grinder convenient to change grinding wheel

Technical Field

The utility model relates to a grinder equipment technical field specifically is a grinder convenient to change grinding wheel.

Background

The grinder is a common device used for sharpening various cutters and tools, and is also used for grinding, deburring, cleaning and the like of common small parts. It is mainly composed of base, grinding wheel, motor or other power source, bracket, protective cover and water feeder. The grinder can be divided into a handheld grinder, a vertical grinder, a suspended grinder, a table grinder and the like, wherein the grinder mainly drives a grinding wheel to cut through a motor, the grinding wheel can generate sparks during grinding, the grinding wheel is directly exposed outside, hands of people can easily touch the grinding wheel, and a protective cover is covered outside the grinding wheel for safety. The prior grinder has the following defects in the using process:

1. in the machining process, the grinding wheel is worn and dulled or damaged and loses cutting capacity, so that the grinding wheel needs to be replaced, the conventional grinding wheel is usually fixed on a motor rotating shaft through a bolt, a protective cover is fixed on the outer side of the conventional grinding wheel, and the conventional grinding wheel is complex to disassemble and very affects the efficiency.

2. The protection cover of the conventional grinding machine is generally semicircular, so that an operator can effectively prevent the operator from mistakenly touching the grinding wheel, but the conventional protection cover cannot adjust the area, further cannot adjust the exposed area of the grinding wheel, and is very inconvenient when a large workpiece is processed.

To this end, a grinder with a grinding wheel that is easy to replace is proposed to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grinder convenient to change grinding wheel to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a grinder convenient for replacing grinding wheels comprises a base, wherein the top surface of the base is slidably sleeved with the bottom end of a support frame, the top end of the support frame is fixedly connected with a motor bin, a double-shaft motor is fixedly connected in the motor bin, two sides of the motor bin are fixedly connected with two sleeves respectively, one end of each sleeve, which is positioned outside the motor bin, is fixedly connected with a first rotating ring, a rotating shaft of the double-shaft motor penetrates through the sleeves and the first rotating ring, is positioned outside the motor bin and is sleeved with the grinding wheels, a spline shaft is fixedly connected at the rotating shaft of the double-shaft motor, a spline groove is formed in the rotating shaft of the grinding wheels in a plugging mode, a protective cover is sleeved at the end part of the rotating shaft of the double-shaft motor, a connecting nut is rotatably arranged at the position of the rotating shaft of the double-shaft motor, a threaded column is fixedly connected with the nut in a threaded mode, and the protective cover is rotatably connected with a second rotating ring close to one side of the motor bin, the second rotating ring is rotatably sleeved on the rotating shaft of the double-shaft motor.

Preferably, one side, close to the grinding wheel, of the first rotating ring is fixedly connected with a plurality of first inserting columns, one side, close to the first rotating ring, of the grinding wheel is provided with a plurality of first inserting holes, and the first inserting columns are in interference fit with the first inserting holes.

Preferably, a plurality of second inserting columns are fixedly connected to two sides, close to the grinding wheel, of the second rotating ring, a plurality of second inserting holes are formed in two sides, close to the second rotating ring, of the grinding wheel, and the second inserting columns are in interference fit with the second inserting holes.

Preferably, a plurality of fixed blocks are fixedly connected to the top surface of the protective cover, a plurality of third jacks are formed in one side, close to the motor cabin, of each fixed block, a plurality of third inserting columns are fixedly connected to the outer side of the motor cabin corresponding to the third jacks, and the third inserting columns are in interference fit with the third jacks.

Preferably, an L-shaped groove is formed in one side of the protective cover, a movable protective cover is connected in the L-shaped groove in a sliding mode, and the movable protective cover is located at one end of the outer side of the L-shaped groove and fixedly connected with the hand-pulling plate.

Preferably, the bottom surface of the inner part of the base is fixedly connected with the bottom ends of a plurality of shock absorbers, and the top ends of the shock absorbers are fixedly connected with the bottom end of the supporting frame.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses when needing to change the grinding wheel, only need swivel nut, can demolish the protection casing, later with the grinding wheel follow integral key shaft demolish can, need not to use the bolt fastening, dismantle swiftly rapidly, facilitate the use.

2. The utility model discloses protection casing department is provided with L type groove, and L type inslot sliding connection activity protection casing can change the area of protection casing through the activity protection casing that slides, and then adjusts the exposed area of grinding wheel piece, is fit for the work piece use of equidimension not, and practical value is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the cross-sectional structure of the present invention;

FIG. 3 is an enlarged structural view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is an enlarged schematic view of the structure of the middle protective cover of the present invention.

In the figure: the vibration damper comprises a base 1, a support frame 2, a motor bin 3, a double-shaft motor 4, a sleeve 5, a spline shaft 6, a grinding wheel 7, a spline groove 8, a first rotating ring 9, a first inserting column 10, a first inserting hole 11, a threaded column 12, a protective cover 13, a nut 14, a second rotating ring 15, a second inserting column 16, a second inserting hole 17, a fixed block 18, a third inserting column 19, a third inserting hole 20, a L-shaped groove 21, a movable protective cover 22, a hand-pulling plate 23 and a vibration damper 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a grinder convenient for replacing grinding wheels comprises a base 1, the top surface of the base 1 is slidably sleeved with the bottom end of a support frame 2, the top end of the support frame 2 is fixedly connected with a motor bin 3, a double-shaft motor 4 is fixedly connected in the motor bin 3, two sides of the motor bin 3 are respectively and fixedly connected with two sleeves 5, one end of each sleeve 5, which is positioned outside the motor bin 3, is fixedly connected with a first rotating ring 9, a rotating shaft of the double-shaft motor 4 penetrates through the sleeves 5 and the first rotating ring 9, is positioned outside the motor bin 3 and is sleeved with a grinding wheel 7, a spline shaft 6 is fixedly connected at the rotating shaft of the double-shaft motor 4, a spline groove 8 is arranged at the rotating shaft of the grinding wheel 7, the spline shaft 6 is inserted into the spline groove 8, the end part of the rotating shaft of the double-shaft motor 4 is sleeved with a protective cover 13, the protective cover 13 is rotatably connected with a connecting nut 14 corresponding to the rotating shaft of the double-shaft motor 4, the end part of the rotating shaft of the double-shaft motor 4 is fixedly connected with a threaded column 12, the nut 14 is in a threaded connection with the threaded column 13, one side close to the motor bin 3, and is rotatably connected with a second rotating ring 15, the second rotating ring 15 is rotatably sleeved on the rotating shaft of the double-shaft motor 4.

As shown in fig. 3, a plurality of first inserting columns 10 are fixedly connected to one side of the first rotary ring 9 close to the grinding wheel 7, a plurality of first inserting holes 11 are formed in one side of the grinding wheel 7 close to the first rotary ring 9, and the first inserting columns 10 are in interference fit with the first inserting holes 11.

As shown in fig. 3, a plurality of second inserting columns 16 are fixedly connected to two sides of the second rotary ring 15 close to the grinding wheel 7, a plurality of second inserting holes 17 are formed in two sides of the grinding wheel 7 close to the second rotary ring 15, and the second inserting columns 16 are in interference fit with the second inserting holes 17.

As shown in fig. 3, the top surface of the protective cover 13 is fixedly connected with a plurality of fixing blocks 18, one side of each fixing block 18, which is close to the motor compartment 3, is provided with a plurality of third insertion holes 20, the outer side of the motor compartment 3 is fixedly connected with a plurality of third insertion posts 19 corresponding to the third insertion holes 20, and the third insertion posts 19 are in interference fit with the third insertion holes 20.

As shown in fig. 3, one side of the protective cover 13 is provided with an L-shaped groove 21, the L-shaped groove 21 is slidably connected with a movable protective cover 22, and one end of the movable protective cover 22, which is located outside the L-shaped groove 21, is fixedly connected with a handle plate 23.

As shown in FIG. 2, the bottom surface of the interior of the base 1 is fixedly connected with the bottom ends of a plurality of shock absorbers 24, and the top ends of the shock absorbers 24 are fixedly connected with the bottom end of the supporting frame 2.

The working principle is as follows: the utility model discloses rotate through the grinding wheel that biax motor drove both sides when using, can carry out cutting work. The utility model discloses when needing to change the grinding wheel, only need swivel nut, can demolish the protection casing, later with the grinding wheel follow integral key shaft demolish can, need not to use the bolt fastening, dismantle swiftly rapidly, facilitate the use. The utility model discloses protection casing department is provided with L type groove, and L type inslot sliding connection activity protection casing can change the area of protection casing through the activity protection casing that slides, and then adjusts the exposed area of grinding wheel piece, is fit for the work piece use of equidimension not, and practical value is high.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a grinder convenient to change emery wheel piece, includes base (1), its characterized in that: the top surface of the base (1) is slidably sleeved with the bottom end of the support frame (2), the top end of the support frame (2) is fixedly connected with a motor bin (3), a double-shaft motor (4) is fixedly connected in the motor bin (3), two sides of the motor bin (3) are fixedly connected with two sleeves (5) respectively, one end of each sleeve (5) positioned outside the motor bin (3) is fixedly connected with a first rotating ring (9), a rotating shaft of the double-shaft motor (4) penetrates through the sleeves (5) and the first rotating rings (9) positioned outside the motor bin (3) and is sleeved with a grinding wheel (7), a rotating shaft of the double-shaft motor (4) is fixedly connected with a spline shaft (6), a spline groove (8) is formed in the rotating shaft of the grinding wheel (7), the spline shaft (6) is inserted into the spline groove (8), the rotating shaft end of the double-shaft motor (4) is sleeved with a protective cover (13), and the protective cover (13) rotates a connecting nut (14) corresponding to the rotating shaft position of the double-shaft motor (4), biax motor (4) pivot department tip rigid coupling screw thread post (12), nut (14) threaded connection screw thread post (12), protection casing (13) are close to motor storehouse (3) one side and rotate and connect second swivel (15), second swivel (15) rotate and cup joint biax motor (4) pivot department.

2. The grinder of claim 1, wherein the grinder is adapted to facilitate replacement of the grinding wheel, the grinder comprising: one side, close to the grinding wheel (7), of the first rotating ring (9) is fixedly connected with a plurality of first inserting columns (10), one side, close to the first rotating ring (9), of the grinding wheel (7) is provided with a plurality of first inserting holes (11), and the first inserting columns (10) are in interference fit with the first inserting holes (11).

3. The grinder of claim 1, wherein the grinder is adapted to facilitate replacement of the grinding wheel, the grinder comprising: the two sides, close to the grinding wheel (7), of the second rotating ring (15) are fixedly connected with a plurality of second inserting columns (16), the two sides, close to the second rotating ring (15), of the grinding wheel (7) are provided with a plurality of second inserting holes (17), and the second inserting columns (16) are in interference fit with the second inserting holes (17).

4. The grinder of claim 1, wherein the grinder is adapted to facilitate replacement of the grinding wheel, the grinder comprising: the utility model discloses a motor cabinet, including protection casing (13), a plurality of fixed block (18) of protection casing (13) top surface rigid coupling, it is a plurality of fixed block (18), it is a plurality of third jack (20) are seted up to fixed block (18) near motor storehouse (3) one side, the post (19) are inserted to a plurality of third jack (20) position rigid coupling in motor storehouse (3) outside, post (19) and third jack (20) interference fit are inserted to the third.

5. The grinder of claim 1, wherein the grinder is adapted to facilitate replacement of the grinding wheel, the grinder comprising: l type groove (21) is seted up to protection casing (13) one side, sliding connection activity protection casing (22) in L type groove (21), activity protection casing (22) are located L type groove (21) outside one end rigid coupling hand arm-tie (23).

6. The grinder of claim 1, wherein the grinder is adapted to facilitate replacement of the grinding wheel, the grinder comprising: the bottom surface of the inner part of the base (1) is fixedly connected with the bottom ends of a plurality of shock absorbers (24), and the top ends of the shock absorbers (24) are fixedly connected with the bottom end of the support frame (2).