CN218658457U

CN218658457U - Waterproof device for four-side grinding wheel

Info

Publication number: CN218658457U
Application number: CN202222509916.2U
Authority: CN
Inventors: 徐金陵; 郑昌安; 张靖
Original assignee: Bengbu Beite Intelligent Technology Co ltd
Current assignee: Bengbu Beite Intelligent Technology Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-03-21
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses a four sides grind emery wheel watertight fittings, including the bearing frame, the both ends of bearing frame all are equipped with the sealing member, the sealing member setting of one end is in the bearing cap, bearing cap and bearing frame terminal surface fixed connection, connect the main shaft through the bearing in the bearing frame, the main shaft both ends are overhanging and with the sealed cooperation of sealing member, a side of main shaft is equipped with waterproof end cover, waterproof end cover medial surface is equipped with first recess, be equipped with first boss on the terminal surface of bearing cap outside, be equipped with first waterproof groove on the outer peripheral face of first boss, first boss and first recess profile looks adaptation. The utility model discloses a first boss of first recess cooperation covers the notch of first capillary groove with the cell wall of first recess, can effectively block most sputter water droplet and fall into first capillary groove, in a small amount of water gets into first capillary groove, under the effect of water droplet dead weight, arrange outward along the cell wall, and first capillary groove has first groove depth, also can further obstruct the rivers and flow into in the bearing frame.

Description

Four sides grind emery wheel watertight fittings

Technical Field

The utility model relates to a grinding equipment technical field, concretely relates to four sides grind emery wheel watertight fittings.

Background

In recent years, coated glass is more and more widely used in production and life, the requirements for edging and removing films of the side edges of the coated glass are increasingly increased, and a glass four-edge edging machine (for short, four-edge grinding) is brought forward. The glass four-edge grinding machine grinds the side edge surface of the coated glass through a grinding wheel rotating at a high speed, and assists scattered water flow to wash, lubricate and cool a ground surface.

In the actual use process of the glass four-edge grinding machine, the grinding wheel bearing seat assembly provided with the grinding wheel is always in the environment of splashing water drops. In the prior art, for example, chinese patent publication No. CN102284891A discloses a rubber waterproof device for a glass edge grinding machine, which forms a path barrier of splashed water by disposing a waterproof rubber sleeve between a motor and a grinding wheel, but the structure does not consider the waterproof problem of a grinding wheel bearing seat assembly, and splashed water easily permeates into the bearing seat assembly through a fit gap of a part, thereby affecting the normal operation and use of the grinding wheel.

For another example, chinese patent publication No. CN109531335A discloses an edge grinding machine grinding head assembly, in which a static o-ring is disposed between a front end cover, a rear end cover and an inner wall of a bearing seat, and a rotary shaft skeleton lip-ring is disposed between the front end cover, the rear end cover and a grinding wheel shaft, so as to form a waterproof structure, which can play a waterproof role, but has the following disadvantages:

1. because the emery wheel of edging machine bistrique subassembly is high-speed pivoted operation mode, in addition receive the influence of grinding reaction force, cause its subassembly itself to produce the micro-vibration of higher frequency, to the O type sealing washer of static setting, high-frequency vibration can drive O type sealing washer and take place micro-movement, cause easily that O type sealing washer is worn and torn, ageing, inefficacy too fast, influence the waterproof performance of edging machine bistrique subassembly.

2. Because only the framework lip-shaped sealing ring is arranged between the front end cover, the rear end cover and the grinding wheel shaft, water drops sputtered from the outside can enter the surface of the grinding wheel shaft and are collected outside the framework lip-shaped sealing ring, even if the grinding wheel shaft rotating at a high speed generates a centrifugal effect on water on the surface of the grinding wheel shaft, a flow guide structure is not provided, the collected water is still not easy to discharge, and partial water still enters the inside of the bearing seat after a long time, so that the faults of lubricating grease failure, bearing damage and the like are caused, and the grinding wheel can not normally run and be used in serious cases.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a four sides grind emery wheel watertight fittings.

The utility model adopts the following technical scheme:

the utility model provides a four sides grind emery wheel watertight fittings, includes the bearing frame, and the both ends of bearing frame all are equipped with the sealing member, and wherein the sealing member setting of one end is in the bearing cap, bearing cap and bearing frame terminal surface fixed connection, through the bearing connection main shaft in the bearing frame, the main shaft both ends are overhanging and with the sealing member rotating seal cooperation, its characterized in that: the end part of one side of the main shaft is provided with a waterproof end cover, the inner side end face of the waterproof end cover is provided with an annular first groove, the outer side end face of the bearing cover is provided with an annular first boss, the outer peripheral face of the first boss is provided with an annular first waterproof groove, the first boss is matched with the outline of the first groove in a matched mode, the bottom of the first groove is in clearance fit with the end face of the first boss, and the groove wall clearance of the first groove covers the notch of the first waterproof groove.

Furthermore, an annular second groove is formed in the end face of the inner side of the bearing cover, an annular second boss is arranged on the end face of the bearing seat, an annular second waterproof groove is formed in the outer peripheral face of the second boss, the second boss is matched with the outline of the second groove in a matched mode, the bottom of the second groove is in compression fit with the end face of the second boss, and the groove wall of the second groove covers the notch of the second waterproof groove.

Furthermore, a first gap for draining water is reserved between the end face of the root part of the first boss and the end face of the inner side of the waterproof end cover; and a second gap for draining water is reserved between the end surface of the root part of the second boss and the end surface of the inner side of the bearing cover.

Furthermore, the peripheral surface of the waterproof end cover is provided with a spiral groove, and when the waterproof end cover rotates, water in the spiral groove is discharged outwards to the outer end of the waterproof end cover.

Furthermore, a frustum for covering the first gap is further arranged on the end face of the outer side of the bearing cover, and the frustum is semi-annular and is located on the upper side of the horizontal center line of the bearing cover.

Compared with the prior art, the utility model discloses the beneficial effect of utensil:

1. according to the scheme, the first groove arranged on the waterproof end cover is matched with the first boss arranged on the bearing cover, the groove wall of the first groove covers the notch of the first waterproof groove, most sputtered water drops can be effectively prevented from falling into the first waterproof groove, meanwhile, the water drops on the waterproof end cover are discharged outwards and thrown out under the action of rotating centrifugal force, and when a small amount of water enters the first waterproof groove, the water drops are discharged downwards through the first gap under the self weight of the water drops and the flow guide effect of the groove wall of the first waterproof groove; in addition, the first waterproof groove has a first groove depth and also has an effect of blocking further inflow of water into the bearing seat.

2. Through being equipped with the second waterproof groove at the bearing frame, when a small amount of water gets into the second waterproof groove, through the gravity of water and the water conservancy diversion effect of second waterproof groove cell wall, arrange the water of depositing down through the second clearance along the second waterproof groove, prevent during water infiltration bearing frame and bearing cap's joint gap.

Drawings

Fig. 1 is an explosion structure diagram of embodiment 1 of the present invention;

fig. 2 is a schematic view of an assembly structure of embodiment 1 of the present invention;

FIG. 3 is an enlarged schematic view of the structure at I in FIG. 2;

fig. 4 is a schematic structural view of a bearing cap according to embodiment 1 of the present invention;

fig. 5 is a schematic structural view of the waterproof end cover and the main shaft of embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a bearing seat according to embodiment 1 of the present invention;

fig. 7 is a partial structural schematic view of embodiment 2 of the present invention;

fig. 8 is a diagrammatic view in the direction a in fig. 7.

Description of reference numerals: 1. a bearing seat; 1a, a first gap; 1b, a second gap; 11. a second boss; 12. a second waterproof groove; 2. a bearing cap; 21. a first boss; 22. a first waterproof groove; 23. a second groove; 24. a frustum; 3. a seal member; 4. a bearing; 5. a main shaft; 6. a waterproof end cap; 61. a first groove; 62. a helical groove; 7. a spacer bush; 8. a belt pulley; 9. a gland; 10. and (7) grinding wheels.

Detailed Description

In order to make the present invention more clearly understood, the following description is made with reference to the accompanying drawings for further explaining a waterproof device of a four-side grinding wheel of the present invention, and the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

Example 1

As shown in fig. 1 to 6, a waterproof device for a four-side grinding wheel comprises a cylindrical bearing seat 1 with a flange on the left side, wherein a step through hole is formed in the center of the inside of the bearing seat 1, and the bearing seat is made of aluminum alloy so as to reduce the dead weight of the bearing seat. The left end of the bearing seat 1 is fixedly connected with a bearing cover 2 through a bolt, a through hole is formed in the center of the bearing cover 2, a groove is formed in the wall of the through hole, a sealing element 3 is installed on the wall of the through hole, and another sealing element 3 is installed on the inner wall of an orifice at the right end of the bearing seat 1. Three bearings 4 are coaxially arranged in the bearing seat 1 side by side, the outer ring of the left bearing 4 is in abutting press fit with the bearing cover 2, and the outer ring of the right bearing 4 abuts against the step surface of the step hole of the bearing seat 1. The bearings 4 are all sleeved with a main shaft 5 with two sides extending out. The main shaft 5 is a step shaft, and the step part of the main shaft is tightly pressed with the inner ring of the left bearing 4; the right side of the main shaft 5 is sleeved with a spacer 7, the left end of the spacer 7 is pressed against the inner ring of the right side bearing 4, the right end of the spacer 7 is pressed against the end face of the belt pulley 8, the belt pulley 8 is connected with the right end of the main shaft 5 through a key, and axial fixation is formed through a gland 9. The surface of the spacer 7 is in sealing fit with the right sealing element 3, and the left circumferential surface of the main shaft 5 is in sealing fit with the corresponding sealing element 3. Wherein, the sealing element 3 adopts a framework lip-shaped sealing ring; the bearing 4 is a rolling bearing, and can be a deep groove ball bearing or an angular contact bearing; the belt pulley 8 is connected with a speed reduction motor through a belt to provide driving force for the main shaft 5.

The left end of the main shaft 5 is integrally provided with a waterproof end cover 6, and the waterproof end cover 6 is coaxial with the main shaft 5. The outer side of the waterproof end cover 6 can be fixedly connected with a grinding wheel 10 through bolts. An annular first groove 61 is formed in the inner (right) end face of the waterproof end cover 6. An annular first boss 21 is arranged on the end face of the outer side (left side) of the bearing cover 2, an annular first waterproof groove 22 is arranged on the peripheral face of the first boss 21, and the right groove wall of the first waterproof groove 22 is coplanar with the end face of the root of the first boss 21. The first projection 21 is adapted to the contour of the first groove 61. Wherein, the groove wall of the first groove 61 is in clearance fit with the circumferential surface of the first boss 21; the groove bottom of the first groove 61 is in clearance fit with the end face of the first boss 21, and the clearance is 0.1mm-0.02mm, so that the size of the clearance is reduced as much as possible on the premise that the relative movement of the waterproof end cover 6 and the bearing cover 2 does not interfere with each other. The groove wall of the first groove 61 far from the axis covers the notch of the first waterproof groove 22 to reduce the open area of the notch of the first waterproof groove 22, and further reduce splashing water drops entering the first waterproof groove 22. A first gap 1a is reserved between the end surface of the root part of the first boss 21 and the end surface of the inner side of the waterproof end cover 6, and water in the first waterproof groove 22 is discharged outwards.

An annular second groove 23 is formed in the end face of the inner side (right side) of the bearing cover 2, an annular second boss 11 is arranged on the end face of the flanging of the bearing seat 1, an annular second waterproof groove 12 is formed in the peripheral face of the second boss 11, the right side groove wall of the second waterproof groove 12 is coplanar with the end face of the root of the second boss 11, the second boss 11 is matched with the profile of the second groove 23, and the groove wall of the second groove 23 is tightly matched and connected with the peripheral face of the second boss 11; the groove bottom of the second groove 23 is in press fit with the end face of the second boss 11, and the groove wall of the second groove 23, which is far away from the axis, covers the notch of the second waterproof groove 12 so as to reduce the open area of the notch of the second waterproof groove 12 and further reduce the splashing liquid entering the second waterproof groove 12. A second gap 1b is reserved between the end surface of the root part of the second boss 11 and the end surface of the inner side of the bearing cover 2, and water in the second waterproof groove 12 is discharged outwards.

When the device is used, the main shaft 5 is driven to rotate at a high speed through the belt pulley 8, and meanwhile, the waterproof end cover 6 is driven to rotate. The groove wall of the first groove 61 covers the notch of the first waterproof groove 22, so that most of sputtered water drops can be effectively prevented from falling into the first waterproof groove 22, meanwhile, water drops on the circumferential surface of the waterproof end cover 6 are discharged outwards and thrown out under the action of rotating centrifugal force, and when a small amount of water enters the first waterproof groove 22, the water drops are discharged downwards through the first gap under the self weight of the water drops and the flow guide effect of the groove wall of the first waterproof groove; in addition, the first waterproof groove has a first groove depth and also has an effect of blocking further inflow of water into the bearing seat. When the water droplet of outside sputtering permeates from second clearance 1b of the cooperation equipment of bearing cap 2 and bearing frame 1, at first can get into in the second capillary 12, because second capillary 12 has certain groove depth, and bearing cap 2 and bearing frame 1 rigid, just slide to the bottom along second capillary 12 through self action of gravity when the water of infiltration has not been full of second capillary 12, arrange outward from second clearance 1b to waterproof effect has been played.

Example 2

In this embodiment, a further optimization is performed on the basis of embodiment 1, as shown in fig. 7 and 8, a spiral groove 62 arranged along the axial direction of the waterproof end cover 6 is provided on the outer circumferential surface of the waterproof end cover 6, the rotation direction of the spiral groove 62 is set according to the rotation direction of the waterproof end cover 6, and water in the spiral groove is discharged to the outside of the waterproof end cover 6 when the waterproof end cover 6 rotates. For example, when the waterproof end cover 6 rotates clockwise as seen from the direction a of the diagram, the rotation direction of the waterproof end cover 6 is right-handed, and similar to the mechanism of pushing material by the packing auger, water splashed on the peripheral surface of the waterproof end cover 6 is discharged outward along the spiral groove toward the outer end surface of the waterproof end cover 6. In addition, when the rotating speed of the waterproof end cover 6 is too high, water can also be centrifugally thrown out along the groove wall of the spiral groove.

The outer end face of the bearing cap 2 is further provided with a frustum 24 for covering the first gap 1a, the frustum 24 is semi-annular and is positioned above the horizontal center line of the bearing cap 2, and the frustum 24 and the spiral groove 62 have small gaps which do not interfere with each other. The inclined plane of the frustum 24 points to the spiral groove 62, so that water sputtered on the surface of the frustum can be guided into the spiral groove 62, and the water is smoothly discharged under the rotating action of the spiral groove 62. Wherein, the frustum 24 is made of engineering plastic and is fixedly connected with the bearing cap 2 through a screw.

By arranging the spiral groove 62, water on the surface of the spiral groove can be actively guided and discharged, and the water entering the first gap 1a is reduced; the frustum 24 is arranged and covers the first gap 1a, so that the entering of sputtered water into the frustum is further reduced, meanwhile, grinding materials in the grinding process can be prevented from entering the frustum, the frustum 24 is of a semi-annular structure and is arranged on the upper side of the horizontal center line of the bearing cover 2, and the water in the first gap 1a is prevented from being blocked from flowing outwards to the bottom.

The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.

Claims

1. The utility model provides a four sides grind emery wheel watertight fittings, includes bearing frame (1), and the both ends of bearing frame (1) all are equipped with sealing member (3), and wherein the sealing member setting of one end is in bearing cap (2), bearing cap (2) and bearing frame (1) terminal surface fixed connection, connects main shaft (5) through bearing (4) in bearing frame (1), and main shaft (5) both ends are overhanging and with sealing member (3) rotation seal cooperation, its characterized in that: one side tip of main shaft (5) is equipped with waterproof end cover (6), and the medial surface of waterproof end cover (6) is equipped with annular first recess (61), be equipped with annular first boss (21) on the outside terminal surface of bearing cap (2), be equipped with annular first capillary groove (22) on the outer peripheral face of first boss (21), first boss (21) and first recess (61) profile looks adaptation, wherein, the terminal surface clearance fit of first recess (61) tank bottom and first boss (21), the cell wall clearance of first recess (61) covers the notch of first capillary groove (22).

2. The waterproof device for the four-side grinding wheel of claim 1, wherein: be equipped with annular second recess (23) on the medial surface of bearing cap (2), bearing frame (1) terminal surface is equipped with annular second boss (11), is equipped with annular second capillary groove (12) on the outer peripheral face of second boss (11), second boss (11) and second recess (23) profile looks adaptation, and wherein, second recess (23) tank bottom compresses tightly the cooperation with the terminal surface of second boss (11), and the cell wall of second recess (23) covers the notch of second capillary groove (12).

3. The waterproof device for the four-side grinding wheel of claim 2, wherein: a first gap (1 a) for draining water is reserved between the end surface of the root part of the first boss (21) and the end surface of the inner side of the waterproof end cover (6); and a second gap (1 b) for draining water is reserved between the end surface of the root part of the second boss (11) and the end surface of the inner side of the bearing cover (2).

4. The waterproof device for the four-side grinding wheel of claim 3, wherein: the peripheral surface of the waterproof end cover (6) is provided with a spiral groove (62), and when the waterproof end cover (6) rotates, water in the spiral groove is discharged outwards to the outer end of the waterproof end cover (6).

5. The waterproof device for the four-side grinding wheel of claim 4, wherein: the outer end face of the bearing cover (2) is further provided with a frustum (24) for covering the first gap (1 a), and the frustum (24) is semi-annular and is located on the upper side of the horizontal center line of the bearing cover (2).