CN214490156U

CN214490156U - Grinding wheel spindle sealing device with positioning assembly

Info

Publication number: CN214490156U
Application number: CN202120591465.4U
Authority: CN
Inventors: 沈涛; 张振浩
Original assignee: Changzhou Shehua Technology Co ltd
Current assignee: Changzhou Shehua Technology Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-10-26
Anticipated expiration: 2031-03-23

Abstract

The utility model relates to a grinding wheel spindle, especially, relate to a sealing device for grinding wheel spindle with locating component, it includes the main shaft oil tank, grinding wheel spindle, the main shaft oil tank is cylindricly, grinding wheel spindle is coaxial to be set up in the main shaft oil tank, the both ends of main shaft oil tank are fixedly connected with skeleton oil blanket respectively, there is the thread bush at grinding wheel spindle's both ends respectively threaded connection, thread bush and skeleton oil blanket one-to-one, the thread bush supports and leans on in the skeleton oil blanket, the both ends of main shaft oil tank are fixedly connected with solid fixed ring respectively, gu fixed ring's interior circumference wall is opened has the location annular, it is connected with the locating piece to slide on the thread bush, the locating piece is at location annular internal rotation. This application has the effect that reduces the possibility that the relative skeleton oil blanket of thread bush takes place the axial dislocation in the rotation process.

Description

Grinding wheel spindle sealing device with positioning assembly

Technical Field

The application relates to a grinding wheel spindle, in particular to a sealing device with a positioning assembly for the grinding wheel spindle.

Background

A grinding machine is a machine tool that grinds the surface of a workpiece using a grinding tool. Most grinding machines use a grinding wheel rotating at high speed for grinding. A grinding wheel spindle of the grinding machine is soaked in an oil tank, and two ends of the grinding wheel spindle are sealed by framework oil seals.

At present, Chinese patent with publication number CN211029576U discloses an oil leakage prevention device for a grinding wheel spindle of a grinding machine, which comprises a spindle oil tank, a grinding wheel spindle, a thread bush and a framework oil seal; the grinding wheel spindle is horizontally supported in the spindle oil tank, the threaded sleeve is screwed at one end of the grinding wheel spindle, the framework oil seal is sleeved on the outer circle of the threaded sleeve, the sealing lip of the framework oil seal abuts against the outer circle of the threaded sleeve, and the outer wall of the framework oil seal abuts against the inner wall of the spindle oil tank.

With respect to the related art in the above, the inventors consider that: the thread sleeve can axially dislocate relative to the framework oil seal in the rotating process, so that the sealing effect of the grinding wheel spindle is reduced.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility that the thread sleeve generates axial dislocation relative to the framework oil seal in the rotating process, the application provides a sealing device with a positioning assembly for a grinding wheel spindle.

The application provides a grinding wheel is sealing device for main shaft with locating component adopts following technical scheme:

the utility model provides a sealing device for grinding wheel spindle with locating component, including the main shaft oil tank, grinding wheel spindle, the main shaft oil tank is cylindricly, grinding wheel spindle is coaxial to be set up in the main shaft oil tank, fixedly connected with skeleton oil blanket respectively at the both ends of main shaft oil tank, grinding wheel spindle's both ends respectively threaded connection has the thread bush, thread bush and skeleton oil blanket one-to-one, the thread bush supports and leans on in the skeleton oil blanket, the both ends of main shaft oil tank respectively fixedly connected with solid fixed ring, gu fixed ring's interior circumference wall is opened has the positioning ring groove, it is connected with the locating piece to slide on the thread bush, the locating piece is at the rotation of positioning ring inslot.

By adopting the technical scheme, the positioning block rotates in the positioning ring groove, and the positioning ring groove plays a role in limiting the positioning block, so that the positioning block plays a role in limiting the threaded sleeve, and the possibility of axial dislocation of the threaded sleeve relative to the framework oil seal in the rotating process is reduced.

Optionally, an accommodating groove is formed in the outer circumferential wall of the threaded sleeve, the positioning block slides in the accommodating groove along the radial direction of the threaded sleeve, an elastic element is fixedly connected to the side face, facing the axis of the threaded sleeve, of the positioning block, the elastic element is extruded between the inner bottom wall of the accommodating groove and the positioning block, and the elastic element is fixedly connected to the inner bottom wall of the accommodating groove.

Through adopting above-mentioned technical scheme, when needs location thread bush, the elastic component exerts elastic force to the locating piece for the locating piece is inserted and is established in the positioning ring inslot, thereby the locating piece plays the effect of location to the thread bush, when needs dismantle the thread bush, removes the locating piece, makes the elastic component compression, and the locating piece contracts to the holding tank in, can relieve the locating effect of locating piece to the thread bush.

Optionally, be equipped with the direction subassembly in the holding tank, the direction subassembly includes guiding axle, uide bushing, and the guiding axle slides and wears to establish in the uide bushing, guiding axle fixed connection in locating piece, and the uide bushing is fixed in the holding tank, and the elastic component cover is established in the outside of uide bushing.

Through adopting above-mentioned technical scheme, guiding axle and uide bushing sliding fit have improved the stability when the locating piece slides on the one hand, and on the other hand provides the support for the elastic component.

Optionally, a plurality of groups of guide assemblies are arranged in one-to-one correspondence with the elastic pieces.

Through adopting above-mentioned technical scheme, multiunit direction subassembly and elastic component have improved the stability that locating piece and thread bush are connected.

Alternatively, the guide sleeve is threadedly coupled to the inner bottom wall of the receiving groove.

Through adopting above-mentioned technical scheme, be convenient for install or dismantle the uide bushing.

Optionally, the fixed ring is located one side that the skeleton oil blanket deviates from the main shaft oil tank inside, and one side fixedly connected with push pedal of skeleton oil blanket is kept away from to the locating piece, and the push pedal is worn out the thread bush and with thread bush sliding fit.

Through adopting above-mentioned technical scheme, the staff of being convenient for of push pedal removes the locating piece to convenient to detach thread bush.

Optionally, the side of the positioning block facing the positioning groove is fixedly connected with a lubricating layer.

By adopting the technical scheme, the polytetrafluoroethylene has a lubricating effect, and the smoothness of the positioning block during rotation is improved.

Optionally, the surface of the positioning block is provided with a heat dissipation groove.

By adopting the technical scheme, the heat dissipation groove increases the surface area of the positioning block, and the positioning block is convenient to dissipate heat.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the positioning block is in rotating fit with the fixing ring, so that the effect of positioning the threaded sleeve is achieved, and the possibility of axial dislocation of the threaded sleeve is reduced;

2. the guide assembly comprises a guide shaft and a guide sleeve, and the guide shaft is in sliding fit with the guide sleeve, so that the stability of the positioning block in sliding is improved on one hand, and the elastic part is supported on the other hand;

3. the locating piece is towards the side fixedly connected with lubricating layer of constant head tank, has improved the smoothness nature when locating piece rotates.

Drawings

Fig. 1 is a sectional view of a seal device for a grinding wheel spindle with a positioning assembly according to an embodiment of the present application.

Fig. 2 is a sectional view of a threaded sleeve and a positioning block according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a sealing device for a grinding wheel spindle with a positioning assembly according to an embodiment of the present application.

Description of reference numerals: 1. a main shaft oil tank; 2. a grinding wheel spindle; 3. framework oil seal; 4. a threaded sleeve; 41. accommodating grooves; 42. a sliding groove; 5. positioning blocks; 51. a lubricating layer; 52. a heat dissipation groove; 6. an elastic member; 7. a guide assembly; 71. a guide shaft; 72. a guide sleeve; 8. a fixing ring; 81. a positioning ring groove; 9. a push plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a grinding wheel spindle sealing device with a positioning assembly. Referring to fig. 1, the grinding wheel spindle sealing device with the positioning assembly comprises a spindle oil tank 1 and a grinding wheel spindle 2, wherein the spindle oil tank 1 is cylindrical, two ends of the spindle oil tank 1 are respectively and coaxially connected with a framework oil seal 3, and the framework oil seal 3 is fixedly connected to the inner wall of the spindle oil tank 1.

The grinding wheel spindle 2 is coaxially arranged in the spindle oil tank 1, two ends of the grinding wheel spindle 2 are respectively sleeved with a threaded sleeve 4, and the threaded sleeves 4 are in threaded connection with the grinding wheel spindle 2. The outer circumferential wall of the threaded sleeve 4 abuts against the inner circumferential wall of the framework oil seal 3. During operation, the grinding wheel spindle 2 rotates, the spindle oil tank 1 and the framework oil seal 3 are fixed, and the threaded sleeve 4 rotates in the framework oil seal 3.

Referring to fig. 2, the outer circumferential wall of the threaded sleeve 4 is provided with two receiving grooves 41, and the two receiving grooves 41 are symmetrically arranged about the axis of the threaded sleeve 4. A positioning block 5 slides in the accommodating groove 41 along the radial direction of the threaded sleeve 4. The side of the positioning block 5 facing the axis of the threaded sleeve 4 is fixedly connected with an elastic part 6, and the elastic part 6 is a pressure spring. One end of the elastic element 6, which is far away from the positioning block 5, is fixedly connected to the inner bottom wall of the accommodating groove 41, and the elastic element 6 is squeezed between the inner bottom wall of the accommodating groove 41 and the positioning block 5.

In order to improve the stability of the positioning block 5 during movement, the guide assembly 7 is arranged in the accommodating groove 41, the guide assembly 7 comprises a guide shaft 71 and a guide sleeve 72, and the guide shaft 71 is slidably arranged in the guide sleeve 72 in a penetrating manner. One end of the guide shaft 71 close to the positioning block 5 is fixedly connected to the positioning block 5, and the end of the guide sleeve 72 far from the positioning block 5 is in threaded connection with the inner bottom wall of the accommodating groove 41, so that the guide sleeve 72 is convenient to mount or dismount. When the positioning block 5 moves, the guide shaft 71 slides in the guide sleeve 72, and guides the positioning block 5.

In addition, the elastic part 6 is sleeved on the outer side of the guide sleeve 72, and the guide assembly 7 provides support for the elastic part 6, so that the stability of the elastic part 6 in extension or compression is improved. In order to improve the stability of the fit between the positioning block 5 and the threaded sleeve 4, three sets of guiding components 7 and elastic components 6 are arranged in each accommodating groove 41 in a one-to-one correspondence manner.

Referring to fig. 1, two ends of a main shaft oil tank 1 are respectively and fixedly connected with fixing rings 8, two framework oil seals 3 are positioned between the two fixing rings 8, and the inner circumferential wall of each fixing ring 8 is provided with a positioning ring groove 81.

Referring to fig. 1 and 2, the positioning block 5 is inserted into and engaged with the positioning ring groove 81, and when the elastic element 6 tightly supports the positioning block 5 in the positioning ring groove 81, the positioning block 5 is attached to the inner wall of the positioning ring groove 81. When the threaded sleeve 4 rotates, the positioning block 5 is driven to rotate in the positioning ring groove 81.

Referring to fig. 1, the positioning ring groove 81 plays a role in limiting the positioning block 5, so that the positioning block 5 plays a role in limiting the threaded sleeve 4, the possibility that the threaded sleeve 4 is axially dislocated relative to the framework oil seal 3 in the rotating process is reduced, and the sealing effect between the grinding wheel spindle 2 and the spindle oil tank 1 is improved.

Referring to fig. 1 and 2, in order to improve the smoothness of the positioning block 5 during rotation, a lubricating layer 51 is glued to the side surface of the positioning block 5 facing the inner bottom wall of the positioning ring groove 81, and the lubricating layer 51 is a polytetrafluoroethylene layer. The lubricating layer 51 has a lubricating effect, and reduces the friction force between the positioning block 5 and the bottom wall of the positioning ring groove 81.

In addition, in order to facilitate the heat dissipation of the positioning block 5, a plurality of heat dissipation grooves 52 are respectively formed on two side surfaces of the positioning block 5 perpendicular to the axis of the grinding wheel spindle 2. The heat dissipation groove 52 increases the surface area of the positioning block 5, and reduces the contact area between the positioning block 5 and the inner wall of the positioning ring groove 81, thereby improving the heat dissipation effect of the positioning block 5.

Referring to fig. 1 and 3, a push plate 9 is fixedly connected to one side of the positioning block 5 away from the framework oil seal 3, and the plate surface of the push plate 9 is parallel to the axis of the grinding wheel spindle 2. The threaded sleeve 4 is provided with sliding grooves 42 corresponding to the push plates 9 one by one, the push plates 9 slide in the sliding grooves 42, and one side of each push plate 9, which is far away from the positioning block 5, penetrates out of the threaded sleeve 4.

Referring to fig. 1 and 2, when installing the thread bush 4, the thread bush 4 is sleeved on the grinding wheel spindle 2, and the two push plates 9 are moved towards the axis of the thread bush 4, so that the positioning block 5 overcomes the elastic resistance of the elastic piece 6 and contracts into the accommodating groove 41, and then the thread bush 4 is rotated, so that the thread bush 4 abuts against the inner circumferential wall of the framework oil seal 3. Then, the push plate 9 is loosened, so that the elastic piece 6 applies elastic force to the positioning block 5, the positioning block 5 is inserted into the positioning ring groove 81, and the positioning block 5 has a positioning effect on the threaded sleeve 4.

When the threaded sleeve 4 is damaged and the threaded sleeve 4 needs to be detached, the push plate 9 is utilized to move the positioning block 5, the elastic piece 6 is compressed, the positioning block 5 is contracted into the accommodating groove 41, the positioning effect of the positioning block 5 on the threaded sleeve 4 is removed, and the threaded sleeve 4 can be detached by rotating the threaded sleeve 4.

The implementation principle of the sealing device with the positioning assembly for the grinding wheel spindle is as follows: when the threaded sleeve 4 is installed, the threaded sleeve 4 is sleeved on the grinding wheel spindle 2, the two push plates 9 are moved towards the axis of the threaded sleeve 4, the positioning block 5 overcomes the elastic resistance of the elastic piece 6 and contracts into the accommodating groove 41, and then the threaded sleeve 4 is rotated, so that the threaded sleeve 4 is abutted against the inner circumferential wall of the framework oil seal 3. Then, the push plate 9 is loosened, so that the elastic piece 6 applies elastic force to the positioning block 5, the positioning block 5 is inserted into the positioning ring groove 81, and the positioning block 5 has a positioning effect on the threaded sleeve 4.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a grinding wheel is sealing device for main shaft with locating component which characterized in that: including main shaft oil tank (1), grinding wheel spindle (2), main shaft oil tank (1) is cylindricly, grinding wheel spindle (2) coaxial setting is in main shaft oil tank (1), the both ends of main shaft oil tank (1) fixedly connected with skeleton oil blanket (3) respectively, the both ends of grinding wheel spindle (2) threaded connection has thread bush (4) respectively, thread bush (4) and skeleton oil blanket (3) one-to-one, thread bush (4) support and lean on in skeleton oil blanket (3), the both ends of main shaft oil tank (1) are fixedly connected with solid fixed ring (8) respectively, the interior perisporium of solid fixed ring (8) is opened has location annular (81), sliding connection has locating piece (5) on thread bush (4), locating piece (5) are at location annular (81) internal rotation.

2. The seal device for a grinding wheel spindle with a positioning assembly according to claim 1, wherein: open on the outer periphery wall of thread bush (4) and have holding tank (41), radially sliding in holding tank (41) of locating piece (5) along thread bush (4), side fixedly connected with elastic component (6) of locating piece (5) orientation thread bush (4) axis, elastic component (6) extrusion is between the interior diapire of holding tank (41) and locating piece (5), elastic component (6) fixed connection is in the interior diapire of holding tank (41).

3. The seal device for a grinding wheel spindle with a positioning assembly according to claim 2, wherein: be equipped with direction subassembly (7) in holding tank (41), direction subassembly (7) include guiding axle (71), uide bushing (72), and guiding axle (71) slide to wear to establish in uide bushing (72), and guiding axle (71) fixed connection is in locating piece (5), and uide bushing (72) are fixed in holding tank (41), and the outside at uide bushing (72) is established in elastic component (6) cover.

4. The seal device for a grinding wheel spindle with a positioning assembly according to claim 3, wherein: the guide assemblies (7) and the elastic pieces (6) are provided with a plurality of groups in a one-to-one correspondence manner.

5. The seal device for a grinding wheel spindle with a positioning assembly according to claim 3, wherein: the guide sleeve (72) is screwed to the inner bottom wall of the receiving groove (41).

6. The seal device for a grinding wheel spindle with a positioning assembly according to claim 2, wherein: fixed ring (8) are located skeleton oil blanket (3) and deviate from the inside one side of main shaft oil tank (1), and one side fixedly connected with push pedal (9) of skeleton oil blanket (3) are kept away from in locating piece (5), and thread bush (4) and with thread bush (4) sliding fit are worn out in push pedal (9).

7. The seal device for a grinding wheel spindle with a positioning assembly according to claim 1, wherein: the side surface of the positioning block (5) facing the positioning groove is fixedly connected with a lubricating layer (51).

8. The seal device for a grinding wheel spindle with a positioning assembly according to claim 1, wherein: the surface of the positioning block (5) is provided with a heat dissipation groove (52).