CN211151678U

CN211151678U - Stepping motor front end cover with dustproof structure

Info

Publication number: CN211151678U
Application number: CN201922216481.0U
Authority: CN
Inventors: 吴志伟
Original assignee: Ruian Haichuan Automation System Co ltd
Current assignee: Ruian Haichuan Automation System Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-07-31
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a step motor front end housing with dustproof construction, including the end cover plate, set up the direct hole of screw thread that link up the end cover plate on four angles of end cover plate, the central point of end cover plate puts and is provided with the bulge loop, and set up the motor optical axis that is used for power supply machine optical axis to pass on the axis of bulge loop and perforate, install the shield of cavity form on the exposed terminal surface of bulge loop, the central axis of shield and the fenestrate central axis coincidence of motor optical axis, and clearance fit is adopted with the motor optical axis to the internal diameter of shield, still be provided with the brush on the inner wall of shield. A step motor front end housing with dustproof construction, install the shield of cavity form on the exposed terminal surface of bulge loop, brush on the shield inner wall can brush out the dust that gets into through the gap of motor optical axis and shield, prevent inside its further entering to motor casing, effectually played dirt-proof effect.

Description

Stepping motor front end cover with dustproof structure

Technical Field

The utility model relates to an electrical equipment field, in particular to step motor front end housing with dustproof construction.

Background

At present, a stepping motor is widely applied to industries such as automatic control, stage lighting, textile machinery, medical instruments, machining and the like, and the stepping motor belongs to a high-precision motor due to high machining precision and small step angle, and has high requirements for environmental conditions in use occasions. Along with the development of applied science and technology, some chemical industry that service environment condition is more abominable, open-air work occasion, for example, control, the cloud platform etc. also need use high accuracy step motor, because present step motor's mechanical structure's protection level is not high, consequently use present step motor under adverse circumstances, often the dust can be followed the play axle department of motor and got into motor bearing and motor inside, make motor bearing very easily damage, inside part receives the corruption, motor performance descends, the rotor card dies, motor coil insulation level reduces, cause the inside circumstances such as puncture of coil or short circuit, cause the motor very short time to receive the damage, equipment consequently damages, cause very big loss.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a step motor front end housing with dustproof construction, can effectively solve the problem in the background art.

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

the utility model provides a step motor front end housing with dustproof construction, includes the end cover board, set up the straight through hole of screw thread that link up the end cover board on four angles of end cover board, the central point of end cover board puts and is provided with the bulge loop, and set up the motor optical axis that is used for power supply machine optical axis to pass on the axis of bulge loop and perforate, install the shield of cavity form on the exposed terminal surface of bulge loop, the central axis of shield coincides with the fenestrate the central axis of motor optical axis, and the internal diameter and the motor optical axis of shield adopt clearance fit, still be provided with the brush on the inner wall of shield.

Preferably, four screw holes are uniformly arranged on the exposed end face of the convex ring, and the dustproof cover is screwed into the screw holes through screws and is detachably and fixedly connected with the convex ring.

Preferably, a bearing is installed at the periphery of the perforated hole of the motor optical axis in the end cover plate, the outer circumferential surface of the bearing is embedded in the end cover plate, and the inner circumferential surface of the bearing is in interference fit with the motor optical axis.

Preferably, a reinforcing ring is arranged on the exposed end face of the end cover plate and positioned on the periphery of the convex ring, and the inner diameter and the outer diameter of the reinforcing ring are connected in a reinforcing mode through reinforcing connecting ribs.

Preferably, four threaded counter bores penetrating through the end cover plate are annularly distributed on the periphery of the reinforcing ring on the exposed end surface of the end cover plate.

Preferably, a circle of mounting and positioning ring is arranged on the covering end face of the end cover plate, and the threaded counter bore penetrates through the mounting and positioning ring.

Compared with the prior art, the utility model discloses following beneficial effect has: according to the front end cover of the stepping motor with the dustproof structure, the hollow dustproof cover is mounted on the exposed end face of the convex ring, and the brush on the inner wall of the dustproof cover can brush out dust entering through a gap between the optical axis of the motor and the dustproof cover to prevent the dust from further entering into the motor shell, so that the dustproof effect is effectively achieved; the exposed end surface of the end cover plate is provided with a reinforcing ring at the periphery of the convex ring, the inner diameter and the outer diameter of the reinforcing ring are connected in a reinforcing way through reinforcing connecting ribs, and the inner diameter and the outer diameter of the reinforcing ring are connected through reinforcing connecting ribs, so that the strength of the end cover plate is effectively increased, and the service life of the end cover plate is prolonged to a certain extent; the utility model discloses still add four screw thread counter bores in the periphery of reinforcing ring, can be connected end cover plate and the inside stator structure of motor through this screw thread counter bore to the joint strength of this end cover plate has been increased.

Drawings

Fig. 1 is a schematic view of a front end face structure of a stepping motor front end cover with a dustproof structure according to the present invention;

fig. 2 is a back structural view of a front end cover of a stepping motor with a dustproof structure according to the present invention;

fig. 3 is a side sectional view of a front end cover of a stepping motor with a dustproof structure according to the present invention;

fig. 4 is a schematic structural diagram of a dust-proof cover of a stepping motor front end cover with a dust-proof structure according to the present invention.

In the figure: 1. an end cover plate; 2. a threaded through hole; 3. a threaded counter bore; 4. a reinforcing ring; 5. reinforcing the connecting ribs; 6. a convex ring; 7. perforating an optical axis of the motor; 8. screw holes; 9. installing a positioning ring; 10. a dust cover; 11. a bearing; 12. a screw; 13. and a brush.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a stepping motor front end cover with a dustproof structure comprises an end cover plate 1, four corners of the end cover plate 1 are provided with threaded through holes 2 penetrating through the end cover plate 1, a convex ring 6 is arranged at the central position of the end cover plate 1, a motor optical axis through hole 7 for passing a motor optical axis is formed in the central axis of the convex ring 6, a hollow dustproof cover 10 is installed on the exposed end face of the convex ring 6, the central axis of the dustproof cover 10 coincides with the central axis of the motor optical axis through hole 7, the inner diameter of the dustproof cover 10 is in clearance fit with the motor optical axis, an installation space is reserved for a brush 13, and a brush 13 is arranged on the inner wall of the dustproof cover 10.

Four screw holes 8 are uniformly arranged on the exposed end face of the convex ring 6, the dustproof cover 10 is twisted into the screw holes 8 through screws 12 and is detachably and fixedly connected with the convex ring 6, when the motor works for a long time, and the brush 13 on the inner wall of the dustproof cover 10 is worn, the dustproof cover 10 can be taken down to replace the brush 13, the installation mode of the brush 13 is not limited in the embodiment, and the dustproof cover can be connected in an adhesion or buckling mode as long as the dustproof cover can be stably fixed on the inner wall of the dustproof cover 10 and can play a role in brushing dust; a bearing 11 is arranged in the end cover plate 1 and positioned at the periphery of the motor optical axis through hole 7, the outer circumferential surface of the bearing 11 is embedded in the end cover plate 1, the inner circumferential surface of the bearing 11 is in interference fit with the motor optical axis, and the motor optical axis is matched with the bearing 11, so that the normal rotation of the motor optical axis on the central axis can be ensured, and the friction force between the motor optical axis and the motor optical axis through hole 7 is reduced; the end cover plate 1 is characterized in that a reinforcing ring 4 is arranged on the exposed end face of the end cover plate 1 and positioned at the periphery of a convex ring 6, the inner diameter and the outer diameter of the reinforcing ring 4 are connected in a reinforcing mode through a reinforcing connecting rib 5, and the optical axis of the motor is in a high-speed running state, so that higher requirements on components around the optical axis of the motor are met; four threaded counter bores 3 penetrating through the end cover plate 1 are annularly distributed on the exposed end surface of the end cover plate 1 and positioned at the periphery of the reinforcing ring 4, threaded through holes 2 are only formed in four corners of the end cover plate 1 in the traditional motor end cover, the end cover plate 1 is connected with a shell of a motor through bolts matched with the threaded through holes 2, in the embodiment, the four threaded counter bores 3 are additionally arranged on the periphery of the reinforcing ring 4, the end cover plate 1 can be connected with a stator structure in the motor through the threaded counter bores 3, and therefore the connecting strength of the end cover plate 1 is improved; the covering end face of the end cover plate 1 is provided with a circle of mounting and positioning rings 9, and the threaded counter bore 3 penetrates through the mounting and positioning rings 9.

It should be noted that, the utility model relates to a stepping motor front end cover with dustproof structure, when installing, the end cover plate 1 passes through the motor optical axis and is close to the motor, through the end cover plate 1 cover close the installation holding ring 9 on the terminal surface and align the installation with the stator in the motor, firstly the bolt matching with the screw thread counter bore 3 is twisted into the screw thread counter bore 3 to fasten, the end cover plate 1 is fastened with the stator of the motor, then the end cover plate 1 is fastened with the shell of the motor by the bolt matching with the screw thread through hole, when the motor works after the installation, the rotor rotates at high speed under the effect of three-phase current, drive the motor optical axis to rotate, thereby output torque drives the load to operate, because of the existence of the dustproof cover 8, the brush 13 on the inner wall of the dustproof cover 8 can brush out the dust entering through the gap between the motor optical axis and the dustproof cover 8, prevent the dust from further entering the motor shell, the dustproof effect is effectively achieved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a step motor front end housing with dustproof construction which characterized in that: including end cover plate (1), set up screw thread through hole (2) of lining up end cover plate (1) on four angles of end cover plate (1), the central point of end cover plate (1) puts and is provided with bulge loop (6), and offer motor optical axis that is used for power supply machine optical axis to pass on the axis of bulge loop (6) and perforate (7), install hollow shield (10) on the exposed terminal surface of bulge loop (6), the central axis of shield (10) and the central axis coincidence of motor optical axis perforation (7), and clearance fit is adopted with the motor optical axis to the internal diameter of shield (10), still be provided with brush (13) on the inner wall of shield (10).

2. The stepping motor front end cover with the dustproof structure according to claim 1, wherein: four screw holes (8) are evenly arranged on the exposed end face of the convex ring (6), and the dustproof cover (10) is screwed into the screw holes (8) through screws (12) and is detachably and fixedly connected with the convex ring (6).

3. The stepping motor front end cover with the dustproof structure according to claim 1, wherein: the motor is characterized in that a bearing (11) is arranged on the periphery of a motor optical axis through hole (7) in the end cover plate (1), the outer circumferential surface of the bearing (11) is embedded in the end cover plate (1), and the inner circumferential surface of the bearing (11) is in interference fit with the motor optical axis.

4. The stepping motor front end cover with the dustproof structure according to claim 1, wherein: the end cover plate is characterized in that a reinforcing ring (4) is arranged on the exposed end face of the end cover plate (1) and positioned on the periphery of the convex ring (6), and the inner diameter and the outer diameter of the reinforcing ring (4) are connected in a reinforcing mode through a reinforcing connecting rib (5).

5. The stepping motor front end cover with the dustproof structure according to claim 4, wherein: four threaded counter bores (3) penetrating through the end cover plate (1) are annularly distributed on the exposed end face of the end cover plate (1) and positioned on the periphery of the reinforcing ring (4).

6. The stepping motor front end cover with the dustproof structure according to claim 5, wherein: the end cover is characterized in that a circle of mounting and positioning ring (9) is arranged on the covering end face of the end cover plate (1), and the threaded counter bore (3) penetrates through the mounting and positioning ring (9).