CN206922528U - A kind of motor being bolted - Google Patents

Abstract

The utility model discloses a kind of motor being bolted, including casing and the stator module that is arranged at below casing, be provided with rotating shaft in the middle part of stator module, rotating shaft is connected by fixture with casing, the axle sleeve that fixture is set including rotating shaft close to casing one end；The bolt being socketed through casing upper surface and with axle sleeve.The utility model, which solves permanent magnetic brushless rotor axial position in the prior art, to be fixed with jump ring, the precompression of ball bearing is provided by spring, the axial direction of the rotor of this ordinary construction is with radially there are gap, the problem of can not meeting some more accurate application fields.

Description

A motor fixed by bolts

technical field

The utility model relates to the field of electromechanical equipment, in particular to a motor fixed by bolts.

Background technique

Compared with traditional electric excitation motors, permanent magnet motors, especially rare earth permanent magnet motors, have significant advantages such as simple structure, reliable operation, small size, small mass, less loss, high efficiency, and flexible shapes and sizes of motors. Because the range of applications is extremely wide, it covers almost every field of aerospace, national defense, industrial and agricultural production and daily life. The axial position of the rotor of the general permanent magnet brushless motor is fixed by a circlip, and the spring provides the preload of the ball bearing. There is a gap between the axial and radial directions of the motor rotor with this common structure, and this type of motor cannot meet certain requirements. More sophisticated application fields.

Utility model content

In view of this, the main purpose of this utility model is to provide a motor fixed by bolts, aiming at solving the problem that the axial position of the permanent magnet brushless motor rotor in the prior art is fixed by a circlip, and the spring provides the preload of the ball bearing. , There is a gap between the axial and radial directions of the motor rotor, which cannot meet the problems of some more precise application fields.

To achieve the above object, the technical solution of the utility model is achieved in that:

A motor fixed by bolts, including a casing and a stator assembly arranged under the casing, a rotating shaft is arranged in the middle of the stator assembly, and the rotating shaft is connected to the casing through a fixing part, and the fixing part includes a bushing arranged at one end of the rotating shaft close to the casing; Bolts that pass through the upper surface of the casing and are socketed with the bushing.

Wherein: the casing includes a casing body and a screw hole arranged at the center of the upper surface of the casing body.

The stator assembly includes a bracket and a stator arranged on the bracket.

The bolt is fixedly connected with the casing.

Compared with the prior art, the motor fixed by bolts in the utility model has the following beneficial effects:

The motor with the shaft and the casing fixed together by bolts makes the motor rotor (including the casing and the shaft) have no gap in the axial and radial directions, thereby ensuring the stability of the motor in the axial and radial directions.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is a disassembled structure diagram of a stator assembly, a casing, a fixing member and a rotating shaft in the utility model.

Fig. 2 is a schematic diagram of the assembly of the stator assembly, the casing, the fixing piece and the rotating shaft in the utility model.

Explanation of reference numbers:

Label Name Label Name

1 stator assembly 2 casing

10 Stator 20 Housing body

11 Bracket 21 Screw hole

3 Fixing piece 4 Rotating shaft

30 bolts

31 Bushing

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example.

Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In the present application, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, the terms "connection" and "fixation" should be understood in a broad sense, for example, "fixation" can be a fixed connection, a detachable connection, or an integration; It may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In addition, the technical solutions of the various embodiments of the present invention can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered as the technical solution. Combination does not exist, nor is it within the scope of protection required by the utility model.

Referring to FIGS. 1-2 , the motor fixed by bolts includes a casing 2 and a stator assembly 1 arranged under the casing 2 . A rotating shaft 4 is provided in the middle of the stator assembly 1 , and the rotating shaft 4 is connected to the casing 2 through a fixing member 3 . The fixing member 3 includes a shaft sleeve 31 provided at one end of the rotating shaft 4 close to the casing 2 and a bolt 30 passing through the upper surface of the casing 2 and socketed with the shaft sleeve 31 .

Referring to FIG. 1 , the casing 2 includes a casing body 20 and a screw hole 21 disposed at the center of the upper surface of the casing body 20 .

The screw hole 21 is used to fix the bolt 30 , which can ensure that the bolt 30 will not fall off from the casing 2 when rotating at a high speed, and is also used to connect the screw hole 21 and the casing 2 .

Referring to FIG. 1 , the stator assembly 1 includes a bracket 11 and a stator 10 disposed on the bracket 11 . The bracket 11 is used to support the stator 10, and the center of the bracket 11 and the stator 10 has a concentric circular hole, which is convenient for the rotating shaft 4 to pass through.

Referring to FIG. 1 , the bolt 30 is fixedly connected to the casing 2 . During operation, the rotating shaft 4 drives the casing 2 to move in the same direction, and the stator assembly 1 remains stationary.

The working principle of the motor fixed by bolts in the utility model is as follows:

The bolt 30 passes through the casing 2 and connects with the end of the rotating shaft 4 close to the bolt 30 . During operation, the rotating shaft 4 drives the casing 2 to move in the same direction, and the stator assembly 1 remains stationary. After the rotating shaft 4 is installed on the casing 2, the casing 2 is locked on the rotating shaft 4 with the bolt 30; after the bolt 30 is fixed, there is no gap between the casing 2 and the rotating shaft 4 in the axial and radial directions, thereby ensuring the motor shaft direction and radial stability.

The above is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Under the utility model concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, Or directly/indirectly used in other relevant technical fields are all included in the patent protection scope of the present utility model.

Claims (4)

1. A kind of 1. motor being bolted, it is characterised in that including casing and the stator module that is arranged in the casing, Rotating shaft is provided with the middle part of the stator module, the rotating shaft is connected by fixture with the casing, and the fixture includes described The axle sleeve that rotating shaft is set close to described casing one end；The bolt being socketed through the casing upper surface and with the axle sleeve.
2. 2. the motor according to claim 1 being bolted, it is characterised in that the casing include casing ontology and It is arranged at the screw at casing ontology upper surface center.
3. 3. the motor according to claim 1 being bolted, it is characterised in that the stator module include support and The stator being arranged on the support.
4. 4. the motor according to claim 1 being bolted, it is characterised in that the bolt and the casing are solid Fixed connection.