CN211901482U

CN211901482U - A dustproof sealing structure for lead screw

Info

Publication number: CN211901482U
Application number: CN202020472436.1U
Authority: CN
Inventors: 马炳强
Original assignee: New Mas Woodworking Machinery & Equipment Co ltd
Current assignee: New Mas Woodworking Machinery & Equipment Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-11-10
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a dustproof sealing structure for lead screw, including the shield, the shield is equipped with closing cap portion and suit portion, suit portion connects in the bottom on closing cap portion periphery edge, the side of suit portion is equipped with first bulge, and first bulge extends to the bottom of suit portion by the top of suit portion. The utility model discloses a dustproof sealing structure for lead screw, the first bulge on its workable in-process suit portion surface can guide the dirt bits to throw away.

Description

A dustproof sealing structure for lead screw

Technical Field

The utility model relates to the technical field of machining, especially, relate to a dustproof sealing structure for lead screw.

Background

At present, when a workpiece is machined, the workpiece is milled mainly by a tool on a machine tool, and machining dust is certainly generated during machining, and falls into a driving mechanism for driving the tool or a machining table. Taking a screw transmission mechanism for driving a processing table to move up and down as an example, a screw is generally installed below the processing table, and dust generated during processing of a workpiece on the processing table can fall into the screw transmission mechanism below along with the processing table, so that the built-in bearing is easily damaged.

The existing method is to arrange a common bearing gland on a screw rod assembly for preventing dust and debris, but the effect is not good.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a dustproof sealing structure for lead screw, the first bulge on the surface of the machinable in-process sheathing part can guide the dust and scraps to throw away.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a dustproof sealing structure for lead screw, includes the shield, and the shield is equipped with closing cap portion and suit portion, suit portion connects in the bottom on closing cap portion periphery edge, the side of suit portion is equipped with first bulge, and first bulge extends to the bottom of suit portion by the top of suit portion.

Furthermore, the bottom end face of the sleeving part is provided with a second protruding part, and the second protruding part is connected with the bottom end of the first protruding part.

Furthermore, the first protruding parts are provided with at least two, the second protruding parts are provided with at least two, and the second protruding parts are correspondingly connected to the bottom ends of the first protruding parts one to one.

Further, the second protruding portion is formed by a protruding block protruding from the bottom end face of the sleeving portion.

Further, the first protruding portion is formed by a convex column protruding from the side surface of the sleeving portion.

Further, the top end face of the cover sealing part is provided with at least two third protruding parts; the at least two third protrusions are used for dispersing dust during rotation of the dust cover.

Furthermore, the surface of the cover part is provided with at least two key grooves, flat keys are embedded in the key grooves, and the surfaces of the flat keys are convexly arranged outside the key grooves and used for forming the third protruding parts.

Furthermore, the top end face of the sealing cover part is provided with a conical surface, and the radius of the conical surface is gradually increased from top to bottom; the third protrusion is arranged on the conical surface.

Compared with the prior art, the beneficial effects of the utility model reside in that: the dirt bits are received by the closing cap portion of shield in the course of working, and suit portion then can suit in the surface of lead screw, and the dirt bits on closing cap portion surface can be followed the week and dropped, and the second bulge can make the dirt bits keep away from the side of suit portion, throws away the dirt bits, prevents that the dirt bits from getting into inside the ball through the connection face of suit portion and lead screw, causes ball inside bearing to damage to reach the improvement dustproof effect purpose.

Drawings

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

fig. 2 is a schematic view of another view structure of the present invention.

In the figure: 10. a dust cover; 11. a capping portion; 111. a third projecting portion; 12. a sheathing part; 121. a first projecting portion; 122. a second projection.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 and 2, the dust-proof sealing structure for the lead screw includes a dust-proof cover 10, the dust-proof cover 10 is provided with a cover portion 11 and a sheathing portion 12, the sheathing portion 12 is connected to a bottom end of an outer peripheral edge of the cover portion 11, a first protrusion 121 is provided on a side surface of the sheathing portion 12, and the first protrusion 121 extends from a top end of the sheathing portion 12 to a bottom end of the sheathing portion 12.

On the basis of the structure, use the utility model discloses a dustproof sealing structure for lead screw, can install shield 10 on ball's screw is vice, ball is used for driving the processing bench up-and-down motion on the lathe, the work piece is processed in the top of workstation, and shield 10 follows ball main part and rotates, need not to add drive arrangement in addition, the dirt bits fall off in the course of working, receive by shield 10's closing cap portion 11, suit portion 12 then can the suit in the surface of lead screw, the dirt bits on closing cap portion 11 surface can be followed the week and followed and dropped, second bulge 122 can make the dirt bits keep away from the side of suit portion 12, throw away the dirt bits, prevent that the dirt bits from getting into inside ball through the face of being connected of suit portion 12 and lead screw, cause ball inner bearing to damage, thereby reach the improvement dustproof effect purpose.

Furthermore, a second protrusion 122 may be disposed on the bottom end surface of the sleeve portion 12, the second protrusion 122 is connected to the bottom end of the first protrusion 121, and the second protrusion 122 and the bearing surface of the ball screw may form a labyrinth seal, so as to prevent dust from entering the bearing through the connecting surface and damaging the bearing.

Further, in this embodiment, there are at least two first protrusions 121, and there are at least two second protrusions 122, and each second protrusion 122 is engaged with the bottom end of each first protrusion 121 in a one-to-one correspondence manner, that is, at least two first protrusions 121 are engaged with at least two second protrusions 122 in a corresponding manner, so as to prevent more dust from entering the bearing.

Further, the second protrusion 122 is formed by a protrusion protruding from the bottom end surface of the housing portion 12, and can be integrally formed on the dust cap 10 through a mold. In addition, the first protrusion 121 is formed by a convex pillar protruding from the side surface of the sheathing part 12, and the convex pillar structure may be integrally formed on the dust cap 10 by a mold, which is convenient for processing.

Of course, the block structure and the flat key structure can be directly mounted on the dust cap 10 by screws.

Further, at least two third protrusions 111 may be provided on the top end surface of the cover 11; at least two third bulges are used for rotating the in-process at shield 10 and disperseing the dirt bits, and the third bulge 111 on shield 10 surface can prevent that the dirt bits from piling up at the rotation in-process, gets into inside the ball, causes the inside bearing of ball to damage to reach the dustproof effect purpose of improvement.

Further, at least two key grooves may be formed on the surface of the cover 11, and a flat key may be correspondingly inserted into the key grooves, and the surface of the flat key may be protruded out of the key grooves to form the third protrusion. So, in the course of working, the flat key of protrusion in keyway surface makes the dust cover 10 surperficial unsmooth, therefore can prevent that the dirt bits from piling up, makes dust cover 10 throw away the dirt bits of dispersion at the rotation in-process, and dustproof effect is better, and flat key accessible screw is installed, the assembly of being convenient for.

Furthermore, a conical surface can be arranged on the top end face of the sealing cover part 11, the radius of the conical surface is gradually increased from top to bottom, the third protruding part 111 is arranged on the conical surface, namely in the rotating process, under the action of centrifugal force, dust on the surface and the periphery of the sealing cover part 11 is guided to the periphery of the dustproof cover 10 by the conical surface and thrown away, and the dustproof effect is better.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The utility model provides a dustproof sealing structure for lead screw, its characterized in that, includes the shield, and the shield is equipped with closing cap portion and suit portion, suit portion connects in the bottom on closing cap portion periphery edge, the side of suit portion is equipped with first bulge, and first bulge extends to the bottom of suit portion by the top of suit portion.

2. The dust-proof sealing structure for the lead screw according to claim 1, wherein a second protrusion is provided on a bottom end surface of the housing portion, and the second protrusion engages with a bottom end of the first protrusion.

3. The dust seal structure for a lead screw according to claim 2, wherein the first projecting portion is provided with at least two, the second projecting portion is provided with at least two, and each of the second projecting portions is engaged with a bottom end of each of the first projecting portions in a one-to-one correspondence.

4. The dust seal structure for a lead screw according to claim 2, wherein the second projecting portion is formed by a projection projecting from a bottom end face of the housing portion.

5. The dust seal structure for a lead screw according to any one of claims 1 to 4, wherein the first projection is formed by a projection projecting from a side surface of the housing portion.

6. The dust seal structure for a lead screw according to any one of claims 1 to 4, wherein the top end face of the cap portion is provided with at least two third projections; the at least two third protrusions are used for dispersing dust during rotation of the dust cover.

7. The dust seal structure for a lead screw according to claim 6, wherein the surface of the cap portion is provided with at least two key grooves, flat keys are fitted in the key grooves, and the surface of the flat key is protruded outside the key grooves and is used for forming the third protrusion.

8. The dust-proof sealing structure for the lead screw according to claim 6, wherein the top end surface of the cap portion is provided with a conical surface, and the radius of the conical surface is gradually increased from top to bottom; the third protrusion is arranged on the conical surface.