CN217977051U

CN217977051U - Dust-proof end cover for wire rail

Info

Publication number: CN217977051U
Application number: CN202222210187.0U
Authority: CN
Inventors: 刘丰铭; 李志峻; 吴志民
Original assignee: Xinxin Linear Precision Machinery Suzhou Co ltd
Current assignee: Xinxin Linear Precision Machinery Suzhou Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-06
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a dust-proof end cover for line rails, which comprises a cover body and a sealing ring, wherein a shaft hole for penetrating through a motor spindle is arranged at the center of the cover body in a penetrating way, the cover body comprises an upper cover and a lower cover which can be clamped and fixed, and the sealing ring for shielding the joint of the upper cover and the lower cover is also wound on the outer sides of the upper cover and the lower cover together; the upper cover and the lower cover are jointly provided with a sealing assembly, the sealing assembly comprises an outer sealing piece and an inner sealing piece which are matched for use, the outer sealing piece is located at the end part of the shaft hole, and the inner sealing piece is located on the inner side wall of the shaft hole. The utility model discloses a dustproof end cover can effectively avoid the dust to enter into the end cover in, and then reduces the poor problem of line rail transmission effect because of end cover and the increase of motor spindle coefficient of friction cause.

Description

Dust-proof end cover for wire rail

Technical Field

The utility model relates to a line rail end cover technical field particularly, relates to a line rail end cover that prevents dust.

Background

The linear guide rail is also called a linear rail, a sliding rail, a linear guide rail and a linear sliding rail, is used for high-precision or high-speed linear reciprocating motion occasions, can bear certain torque, can realize high-precision linear motion under the condition of high load, mostly adopts a screw rod and a screw rod sleeve to move in a matching way, and when end covers arranged at two ends of the linear rail are used for fixedly connecting a shell, a motor spindle also rotates to penetrate through the end covers to be connected inside the linear rail.

The existing end cover dustproof structure is single, when a motor spindle rotates, air around the motor spindle is driven to flow, air floating dust can enter an end cover for a long time, the dust can be accumulated, the friction coefficient between the interior of the end cover and the motor spindle is increased, and therefore the linear rail transmission effect is poor.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a line rail end cover that prevents dust can effectively avoid the dust to enter into the end cover, and then reduces the poor problem of line rail transmission effect because of end cover and the increase of motor spindle coefficient of friction cause.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a dust-proof end cover for a wire rail comprises a cover body and a sealing ring, wherein a shaft hole for penetrating through a motor spindle is arranged in the center of the cover body in a penetrating mode, the cover body comprises an upper cover and a lower cover which can be clamped and fixed, and the sealing ring for shielding the joint of the upper cover and the lower cover is wound on the outer sides of the upper cover and the lower cover; the upper cover and the lower cover are provided with a sealing assembly together, the sealing assembly comprises an outer sealing piece and an inner sealing piece which are matched for use, the outer sealing piece is positioned at the end part of the shaft hole, and the inner sealing piece is positioned on the inner side wall of the shaft hole.

Compared with the prior art, the utility model discloses following beneficial effect has:

the arrangement of the sealing ring can prevent dust from entering the end cover from the joint of the upper cover and the lower cover; the end part of the shaft hole is provided with the outer sealing piece which can effectively seal the switching part of the motor main shaft and the shaft hole, so that dust is prevented from entering the end cover from the connecting gap between the motor main shaft and the shaft hole; the inner side wall of the shaft hole is provided with the inner sealing piece, so that the leakage of bearing lubricating oil can be effectively avoided, and the sealing performance between the shaft hole and the motor spindle is further enhanced.

Further, upper cover, lower cover all include the apron body, one side of apron body is equipped with extends the crown plate, the center department of apron body be equipped with extend the coaxial inner ring plate that sets up of crown plate, set up the No. one through-hole that is used for forming the shaft hole on the inner ring plate, be equipped with on the inside wall of No. one through-hole and be used for the holding the annular caulking groove of interior sealing member.

Furthermore, a supporting rib plate is integrally arranged on one side, away from the cover plate body, of the inner ring plate, and when the upper cover and the lower cover are clamped and fixed, the supporting rib plates of the upper cover and the lower cover can be mutually abutted. The stability of the upper cover and the lower cover during connection is enhanced through the arrangement of the supporting rib plates.

Furthermore, an extending flange extending outwards along the extending ring plate is arranged on the cover plate body, and a containing groove used for containing the sealing ring is defined between the extending flange and the extending ring plate. The sealing ring can be installed in a limiting manner by means of the arrangement of the containing groove, and the position stability of the sealing ring is improved.

Further, the thickness of the sealing ring is larger than the depth of the containing groove, so that when the sealing ring is positioned in the containing groove, the sealing ring can partially extend out of the containing groove.

Further, the sealing ring is locked in the containing groove through a screw, so that the connection stability of the sealing ring is further improved.

Further, still the equipartition has a plurality of strengthening rib strips No. one on the inside wall of extension crown plate, one side of apron body is equipped with a plurality of being located extend the inside strengthening rib strip No. two of crown plate.

Furthermore, a plurality of clamping blocks are arranged on one side, facing the lower cover, of the extension annular plate of the upper cover, and a plurality of clamping grooves matched with the clamping blocks are arranged on the extension annular plate of the lower cover.

Furthermore, a plurality of screw holes which are distributed on the outer side of the first through hole in a circumferential array mode are further distributed on the cover plate body, and a screw hole sealing ring which is located at the screw hole is arranged on one side, far away from the extending ring plate, of the cover plate body. The cover plate body of the upper cover and the cover plate body of the lower cover are fixed at the end parts of the linear rails conveniently through the screw holes, and the dust can be prevented from entering the cover through the screw hole sealing rings, so that the integral dustproof effect is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a dustproof end cover for a line rail according to the present invention;

fig. 2 is an exploded view of a dust-proof end cap for a wire rail according to the present invention;

fig. 3 isbase:Sub>A schematic sectional view of the structure taken along linebase:Sub>A-base:Sub>A in fig. 2.

In the figure:

1-a cover body; 11-upper cover; 12-lower cover; 13-cover body; 131-second reinforcing ribs; 132-screw holes; 133-an extension flange; 14-an extension ring plate; 141-a fixture block; 142-a card slot; 143-first reinforcing ribs; 15-inner ring plate; 151-supporting rib plates; 152-annular caulking groove; 2-sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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.

Examples

As shown in fig. 1, a dust-proof end cover for a wire track comprises a cover body 1 and a sealing ring 2, wherein a shaft hole for penetrating through a motor spindle is arranged in the center of the cover body 1 in a penetrating manner, the cover body 1 comprises an upper cover 11 and a lower cover 12 which can be clamped and fixed, and the sealing ring 2 for shielding the joint of the upper cover 11 and the lower cover 12 is wound on the outer sides of the upper cover 11 and the lower cover 12; the upper cover 11 and the lower cover 12 are provided with sealing assemblies together, each sealing assembly comprises an outer sealing piece and an inner sealing piece which are matched for use, the outer sealing pieces are located at the end parts of the shaft holes, and the inner sealing pieces are located on the inner side walls of the shaft holes.

The arrangement of the sealing ring 2 can prevent dust from entering the end cover from the joint of the upper cover 11 and the lower cover 12; the outer sealing piece is arranged at the end part of the shaft hole, so that the switching part of the motor main shaft and the shaft hole can be effectively sealed, and further, dust is prevented from entering the end cover from the connecting gap between the motor main shaft and the shaft hole; in order to reduce the friction between the motor spindle and the shaft hole, a bearing is usually installed in the shaft hole, and bearing lubricating oil is provided to reduce the friction between the motor spindle and the shaft hole; and set up the inner seal spare on the inside wall in shaft hole and can effectively avoid the leakage of bearing lubricating oil, further strengthen the sealing performance between shaft hole and the motor spindle.

In an example, referring to fig. 2 to 3, each of the upper cover 11 and the lower cover 12 includes a cover plate body 13, an extending ring plate 14 is disposed on one side of the cover plate body 13, an inner ring plate 15 coaxially disposed with the extending ring plate 14 is disposed at a center of the cover plate body 13, a first through hole for forming a shaft hole is formed in the inner ring plate 15, and an annular caulking groove 152 for accommodating the inner sealing element is disposed on an inner side wall of the first through hole.

Specifically, a supporting rib plate 151 is integrally disposed on one side of the inner ring plate 15 away from the cover plate body 13, and when the upper cover 11 and the lower cover 12 are clamped and fixed, the supporting rib plates 151 of the upper cover 11 and the lower cover 12 can abut against each other. The stability of the connection of the upper cover 11 and the lower cover 12 is enhanced by the arrangement of the support rib plate 151.

The cover plate body 13 is provided with an extending flange 133 extending outwards along the extending ring plate 14, and a containing groove for containing the sealing ring 2 is defined between the extending flange 133 and the extending ring plate 14. Can carry out spacing installation to sealing ring 2 through the setting that holds the groove, improve the stability in sealing ring 2 position. It should be noted that the thickness of the sealing ring 2 is larger than the depth of the accommodating groove, so that the sealing ring can partially extend out of the accommodating groove when the sealing ring 2 is located in the accommodating groove.

Furthermore, in order to ensure the stability of the sealing ring 2, screw holes may be provided in the extension flange 133 and the sealing ring 2 may be screwed into the receiving groove.

A plurality of blocks 141 are arranged on one side of the extension ring plate 14 of the upper cover 11 facing the lower cover 12, and a plurality of slots 142 matched with the blocks 141 are arranged on the extension ring plate 14 of the lower cover 12.

In an example, a plurality of first reinforcing ribs 143 are further uniformly distributed on the inner side wall of the extending ring plate 14, and a plurality of second reinforcing ribs 131 located inside the extending ring plate 14 are arranged on one side of the cover plate body 13. The strength of the whole cover body 1 is improved by the arrangement of the first reinforcing rib 143 and the second reinforcing rib 131.

Further, a plurality of screw holes 132 distributed on the outer side of the first through hole 151 in a circumferential array are further arranged on the cover plate body 13, and a screw hole sealing ring located at the screw hole 132 is arranged on one side of the cover plate body 13 away from the extension ring plate 14. The screw hole 132 is convenient for fix the cover plate bodies 13 of the upper cover 11 and the lower cover 12 at the end of the linear rail, and the screw hole sealing ring can prevent dust from entering the cover body, so that the whole dustproof effect is improved.

In one example, the inner seal is an oil seal and the outer seal is a rubber seal.

The working principle of the embodiment is as follows:

the upper cover and the lower cover are respectively sleeved on the motor spindle, the clamping block of the upper cover is clamped in the clamping groove of the lower cover in an aligning way, at the moment, the supporting rib plates are mutually abutted, and the first through hole of the upper cover and the first through hole of the lower cover form a shaft hole together; then the sealing ring is sleeved in the containing groove and is locked in the containing groove through a screw; and then the cover body is fixed to the end part of the wire rail by passing through screw holes on the cover plate body through screws.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all embodiments cannot be exhausted here, and all obvious variations or changes introduced by the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. The utility model provides a line rail dust cover, includes lid and sealing ring, lid center department runs through and is provided with the shaft hole that is used for wearing to establish motor spindle, its characterized in that: the cover body comprises an upper cover and a lower cover which can be clamped and fixed, and the outer sides of the upper cover and the lower cover are also jointly wound with the sealing ring for shielding the joint of the upper cover and the lower cover; the upper cover and the lower cover are jointly provided with a sealing assembly, the sealing assembly comprises an outer sealing piece and an inner sealing piece which are matched for use, the outer sealing piece is located at the end part of the shaft hole, and the inner sealing piece is located on the inner side wall of the shaft hole.

2. The dust-proof end cover for wire rails according to claim 1, wherein: the upper cover and the lower cover both comprise cover plate bodies, an extension annular plate is arranged on one side of each cover plate body, an inner annular plate which is coaxially arranged with the extension annular plate is arranged at the center of each cover plate body, a through hole which is used for forming a shaft hole is formed in the inner annular plate, and an annular caulking groove which is used for containing the inner sealing element is formed in the inner side wall of the through hole.

3. The dust-proof end cover for the wire rail of claim 2, wherein: and when the upper cover and the lower cover are clamped and fixed, the supporting rib plates of the upper cover and the lower cover can be mutually abutted.

4. The dust-proof end cover for wire rails according to claim 2, wherein: the cover plate body is provided with an extending flange extending outwards along the extending annular plate, and a containing groove used for containing the sealing ring is limited and formed between the extending flange and the extending annular plate.

5. The dust-proof end cover for the wire rail of claim 4, wherein: the thickness of the sealing ring is larger than the depth of the containing groove, so that when the sealing ring is positioned in the containing groove, the sealing ring can partially extend out of the containing groove.

6. The dust-proof end cover for wire rails according to claim 4, wherein: the sealing ring is locked in the containing groove through a screw.

7. The dust-proof end cover for wire rails according to any one of claims 2 to 6, wherein: a plurality of first reinforcing ribs are evenly distributed on the inner side wall of the extending annular plate, and a plurality of second reinforcing ribs located inside the extending annular plate are arranged on one side of the cover plate body.

8. The dust-proof end cover for wire rails of claim 7, wherein: a plurality of clamping blocks are arranged on one side, facing the lower cover, of the extension annular plate of the upper cover, and a plurality of clamping grooves matched with the clamping blocks are arranged on the extension annular plate of the lower cover.

9. The dust-proof end cover for wire rails according to claim 2, wherein: the cover plate body is further provided with a plurality of screw holes distributed on the outer side of the first through hole in a circumferential array mode, and one side, far away from the extending annular plate, of the cover plate body is provided with a screw hole sealing ring located at the screw holes.