CN210046456U

CN210046456U - Grinding wheel spindle of angle grinder

Info

Publication number: CN210046456U
Application number: CN201920571441.5U
Authority: CN
Inventors: 王波
Original assignee: Ningbo Yongshi Motor Co Ltd
Current assignee: Ningbo Yongshi Motor Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-02-11
Anticipated expiration: 2029-04-24

Abstract

The utility model relates to a shaft, in particular to an angle grinder grinding wheel shaft, which comprises a flange mounting section, a first limit section, a gear mounting section and a second limit section which are connected in sequence, wherein the flange mounting section is provided with a first thread, a plurality of mounting grooves which are axially arranged are arranged at intervals in the circumferential direction of the flange mounting section, a buffer strip is embedded in each mounting groove, and a second thread which is mutually spliced with the first thread is arranged on one side of the buffer strip at the groove opening of the mounting groove; when the flange plate is in threaded connection with the flange mounting section, the buffer strip is in threaded connection with the flange plate at the same time. The utility model discloses can reduce the wearing and tearing between ring flange and the emery wheel axle, increase the structural stability of emery wheel piece when installing on this emery wheel axle.

Description

Grinding wheel spindle of angle grinder

Technical Field

The utility model relates to an axle, in particular to angle grinder emery wheel axle.

Background

An angle grinder, also called a grinder or a disc grinder, is a grinding tool used for cutting and grinding glass fiber reinforced plastics. The chinese patent with publication number CN108908027A discloses a hand-held angle grinder, which comprises a casing, a driving motor, a reduction gear train and a grinding wheel shaft, wherein the driving motor is longitudinally arranged in the casing along the casing, a first end of the grinding wheel shaft is arranged in the casing and is in transmission connection with an output shaft of the driving motor through the reduction gear train, and a second end of the grinding wheel shaft extends out of the casing and is connected with a grinding wheel, so as to realize the grinding operation.

The conventional grinding wheel spindle is shown in fig. 1, and a thread is arranged at one end of the grinding wheel spindle extending out of a machine shell, and a grinding wheel is fixedly clamped on the grinding wheel spindle through two flange plates in threaded connection with the grinding wheel spindle. However, in the practical application process of the grinding wheel spindle, a certain gap exists at the joint of the grinding wheel spindle and the flange due to rigid connection, and the grinding wheel spindle can move relatively between the flanges when rotating to cause abrasion, which affects the stability of the grinding wheel when being mounted on the grinding wheel spindle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an angle mill emery wheel axle can effectively reduce the wearing and tearing between emery wheel axle and the ring flange, has increased the structural stability of grinding wheel when installing on this emery wheel axle.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a grinding wheel spindle of an angle grinder comprises a flange mounting section, a first limiting section, a gear mounting section and a second limiting section which are sequentially connected, wherein first threads are arranged on the flange mounting section, a plurality of axially arranged mounting grooves are formed in the flange mounting section at intervals in the circumferential direction, a buffer strip is embedded in each mounting groove, and second threads which are mutually spliced with the first threads are arranged on one side, located at the groove opening of each mounting groove, of each buffer strip; when the flange plate is in threaded connection with the flange mounting section, the buffer strip is in threaded connection with the flange plate at the same time.

Through adopting above-mentioned technical scheme, when using the emery wheel axle of this application, first spacing section and the support that the spacing section of second is used for the emery wheel axle, and the ring flange is installed on the flange mounting section for mechanical transmission's gear is installed on the gear mounting section, with this mechanical transmission who realizes the emery wheel axle. Wherein, the emery wheel axle is in transmission process, because the buffering strip has good elastic deformation ability for parts such as steel, therefore ring flange threaded connection when flange installation section, the buffering strip can be better with the laminating of ring flange, for ring flange and flange installation section provide good cushioning effect, reduce the wearing and tearing between ring flange and the emery wheel axle, increased the structural stability of emery wheel piece when installing on this emery wheel axle.

The utility model discloses further set up to: two ends of the mounting groove respectively penetrate through two end faces of the flange mounting section.

Through adopting above-mentioned technical scheme, when the buffering strip takes place wearing and tearing and need change, the both ends face of flange mounting section is run through respectively at the both ends of mounting groove to this convenience takes out the buffering strip of embedding in the mounting groove fast, and the clearance of the dust foreign matter that still is convenient for to fall into in the mounting groove simultaneously has guaranteed the good buffering effect of buffering strip.

The utility model discloses further set up to: the opposite two sides of the flange mounting section are respectively provided with one mounting groove.

By adopting the technical scheme, if the flange mounting section is provided with the mounting groove, the flange mounting section can eccentrically rotate; if set up a plurality of mounting grooves, then can influence the structural strength of emery wheel axle, set up two mounting grooves and bathroom flange installation section's relative both sides from this application, the stationarity when keeping the emery wheel axle rotation that can be better promptly makes the emery wheel axle have good structural strength again.

The utility model discloses further set up to: the first spacing section towards one side of flange mounting section seted up with the spacing groove of mounting groove intercommunication, the protruding stopper that has with the spacing groove joint of one end of buffering strip.

Through adopting above-mentioned technical scheme, stopper joint on the buffering strip is in the spacing groove, can be spacing in the axial of emery wheel axle to the buffering strip, has increased the structural stability of buffering strip.

The utility model discloses further set up to: the groove width of the mounting groove at the ring groove is gradually reduced towards the direction close to the first limiting section.

Through adopting above-mentioned technical scheme, the mounting groove is dwindling being close to one side port of first spacing section, strengthens the stopper at axial spacing effect for the stable joint of stopper is in the spacing groove, and then has increased the structural stability of buffering strip joint when in the mounting groove.

The utility model discloses further set up to: the first limiting section is provided with a plurality of rotation stopping blocks at the bottom of the mounting groove in a protruding mode, and the buffer strip is correspondingly provided with a rotation stopping groove connected with the rotation stopping blocks in a clamped mode.

Through adopting above-mentioned technical scheme, only revolve the piece joint in only revolving the groove, enough carry on spacingly simultaneously in the axial of emery wheel axle and circumference to the buffering strip, increased the structural stability of buffering strip.

The utility model discloses further set up to: the rotation stopping groove and the rotation stopping block are both in a spherical shape.

Through adopting above-mentioned technical scheme, the ball form only revolves the groove and only revolves the piece and can be convenient for both quick joints for the buffering strip can be installed on the flange mounting section fast, has simple structure, simple to operate's characteristics.

The utility model discloses further set up to: an annular groove is formed between the first thread and the first limiting section, and the mounting groove axially penetrates through the annular groove and divides the annular groove into a plurality of parts.

Through adopting above-mentioned technical scheme, the annular between first screw thread and the first spacing section makes the ring flange can set up with the terminal surface interval of first spacing section when the installation, conveniently installs the quick heat dissipation of the epaxial grinding wheel of grinding wheel.

To sum up, the utility model discloses a beneficial technological effect does:

1. the utility model has the advantages that the mounting groove and the buffering strip are arranged on the flange mounting section, and the second thread of the buffering strip is spliced with the first thread of the flange mounting section, so that the abrasion between the flange plate and the grinding wheel shaft is reduced, and the structural stability of the grinding wheel when the grinding wheel is mounted on the grinding wheel shaft is improved;

2. the utility model discloses a setting of spacing groove, stopper, only revolve the groove and only revolve the piece, enough carry on spacingly simultaneously at the axial of grinding wheel axle and circumference to the buffering strip, increased the structural stability of buffering strip, guaranteed that the buffering strip plays good buffering effect to ring flange and grinding wheel axle.

Drawings

FIG. 1 is a schematic structural view of a conventional grinding wheel spindle;

FIG. 2 is a schematic structural view of a grinding wheel spindle of the present invention;

fig. 3 is an explosion structure diagram of the grinding wheel spindle of the present invention.

In the figure, 1, a flange mounting section; 11. a first thread; 12. mounting grooves; 13. a rotation stopping block; 2. a first limiting section; 21. a limiting groove; 3. a gear mounting section; 31. a first mounting portion; 32. a second mounting portion; 33. a third mounting portion; 34. a fourth mounting portion; 4. a second limiting section; 5. a buffer strip; 51. a second thread; 52. a rotation stopping groove; 6. a limiting block; 7. and a ring groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 2, do the utility model discloses a grinding wheel spindle of angle grinder, including flange mounting section 1, first spacing section 2, gear installation section 3 and the spacing section 4 of second that connect gradually. The gear mounting structure is arranged according to the radial length and sequentially comprises a first limiting section 2, a flange mounting section 1, a gear mounting section 3 and a second limiting section 4 from large to small.

Referring to fig. 3, a first thread 11 is arranged on the flange mounting section 1, two mounting grooves 12 are arranged at intervals in the circumferential direction of the flange mounting section 1, the two mounting grooves 12 are respectively located on two opposite sides of the flange mounting section 1, the length direction of the mounting grooves is the axial direction of the flange mounting section 1, and two ends of each mounting groove 12 respectively penetrate through two end faces of the flange mounting section 1, so that foreign matters such as dust falling into the mounting grooves 12 can be discharged in time.

Each mounting groove 12 is embedded with a buffer strip 5 made of silica gel, one side of the buffer strip 5 at the groove opening of the mounting groove 12 is provided with a second thread 51, and the first thread 11 and the second thread 51 are spliced with each other to form a complete thread section (see fig. 2). When ring flange and 1 threaded connection of flange installation section, buffer strip 5 simultaneously with ring flange threaded connection, because silica gel has certain elastic deformation ability, when consequently the ring flange screw thread is screwed up on flange installation section 1, hug closely each other between buffer strip 5 and ring flange and the flange installation section 1, reduced the rigid connection between ring flange and the flange installation section 1.

The groove width of the mounting groove 12 at the ring groove 7 is gradually reduced towards the direction close to the first limiting section 2, and one side of the first limiting section 2 facing the flange mounting section 1 is provided with a limiting groove 21 communicated with the mounting groove 12. The protruding stopper 6 that has with spacing groove 21 joint of one end of buffering strip 5, when buffering strip 5 imbeds in mounting groove 12, stopper 6 is spacing in the axial of buffering strip 5, reduces buffering strip 5 and follows mounting groove 12 roll-off along axial direction.

First spacing section 2 has one to end at the tank bottom arch of mounting groove 12 and revolves piece 13, corresponds on buffering strip 5 to offer and ends the groove 52 of revolving of ending of revolving piece 13 joint, and ends and revolve groove 52 and end and revolve piece 13 and all be the ball form to be convenient for buffering strip 5 fast and stable's embedding in mounting groove 12, reduce buffering strip 5 and take place the possibility of rotation by oneself.

An annular groove 7 is formed between the first thread 11 and the first limiting section 2, the mounting groove 12 axially penetrates through the annular groove 7 and divides the annular groove 7 into two semicircular grooves with the same structure, so that the flange plate can be arranged at intervals with the end face of the first limiting section 2 when mounted, and a grinding wheel conveniently mounted on a grinding wheel shaft can be used for quickly dissipating heat.

The gear installation section 3 comprises a first installation part 31, a second installation part 32, a third installation part 33 and a fourth installation part 34 which are sequentially connected, wherein the first installation part 31 is connected with the first limiting section 2, the fourth installation part is connected with the second limiting section 4, the radial lengths of the first installation part 31, the second installation part 32, the third installation part 33 and the fourth installation part 34 are sequentially reduced, and the gear is rapidly installed and detached conveniently in sequence.

The implementation principle of the embodiment is as follows:

when using the emery wheel axle of this application, first spacing section 2 and second spacing section 4 are used for the support of emery wheel axle, and the ring flange is installed on flange installation section 1 for mechanical transmission's gear is installed on gear installation section 3 to this mechanical transmission who realizes the emery wheel axle.

When the grinding wheel is installed, the flange plate is firstly screwed on the grinding wheel shaft, so that the first threads 11 and the second threads 51 are simultaneously meshed with the internal threads of the flange plate. And then, sleeving the grinding wheel on the grinding wheel shaft, and clamping the grinding wheel by using the other flange plate so as to fixedly connect the grinding wheel shaft, the two flange plates and the grinding wheel.

In the transmission process, because the buffering strip 5 has good elastic deformation ability for parts such as steel, therefore ring flange threaded connection is in flange installation section 1 time, buffering strip 5 can be better with the laminating of ring flange, for ring flange and flange installation section 1 provide good cushioning effect, reduce the wearing and tearing between ring flange and the emery wheel axle, increased the structural stability of emery wheel piece when installing on this emery wheel axle.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A grinding wheel spindle of an angle grinder comprises a flange mounting section (1), a first limiting section (2), a gear mounting section (3) and a second limiting section (4) which are sequentially connected, wherein first threads (11) are arranged on the flange mounting section (1), and the grinding wheel spindle is characterized in that a plurality of axially arranged mounting grooves (12) are formed in the circumferential direction of the flange mounting section (1) at intervals, a buffer strip (5) is embedded in each mounting groove (12), and second threads (51) which are mutually spliced with the first threads (11) are arranged on one side, located at the groove opening of the mounting groove (12), of the buffer strip (5); when the flange plate is in threaded connection with the flange mounting section (1), the buffer strip (5) is in threaded connection with the flange plate at the same time.

2. The grinding wheel spindle of an angle grinder as claimed in claim 1, wherein both ends of the mounting groove (12) penetrate through both end faces of the threaded segment.

3. The grinding wheel spindle of an angle grinder as claimed in claim 2, characterized in that the flange mounting section (1) is provided with one mounting groove (12) on each of its opposite sides.

4. The grinding wheel spindle of the angle grinder as claimed in claim 1, wherein a limiting groove (21) communicated with the mounting groove (12) is formed in one side of the first limiting section (2) facing the flange mounting section (1), and a limiting block (6) clamped with the limiting groove (21) is protruded at one end of the buffer strip (5).

5. The grinding wheel spindle of an angle grinder as claimed in claim 4, characterized in that the groove width of the mounting groove (12) at the ring groove (7) is gradually reduced towards the first limiting section (2).

6. The grinding wheel spindle of the angle grinder as claimed in claim 1 or 4, wherein the first limiting section (2) is provided with a plurality of rotation stopping blocks (13) protruding from the bottom of the mounting groove (12), and the buffer strip (5) is correspondingly provided with rotation stopping grooves (52) clamped with the rotation stopping blocks (13).

7. The grinding spindle of an angle grinder as claimed in claim 6, wherein the rotation stopping groove (52) and the rotation stopping block (13) are both spherical.

8. The grinding wheel spindle of the angle grinder as claimed in claim 1, characterized in that an annular groove (7) is formed between the first thread (11) and the first limiting section (2), and the mounting groove (12) axially penetrates through the annular groove (7) and divides the annular groove (7) into a plurality of parts.