Brake motor structure capable of rotating conveniently and safely after power failure

Abstract

The utility model discloses a brake motor structure capable of conveniently and safely rotating after power failure, which comprises a motor, a motor shaft arranged at the front end of the motor and a motor shaft extension part arranged at the tail part of the motor, a motor fan cover is arranged outside the motor shaft extension part, and a tool joint part axially extending is arranged at the center of the end surface of the motor shaft extension part. The tool joint part is of an inner hexagonal blind hole structure; a fan cover through hole corresponding to the tool joint part is formed in the center of the end face of the fan cover, and the diameter of the fan cover through hole is larger than that of the tool joint part. Through the design of the axial inner hexagonal blind hole integrally formed at the tail part of the motor shaft and the size optimization of the fan cover through hole, the outer hexagonal milling and fan cover chambering procedures are effectively simplified, and the processing cost is reduced; and the embedded tool joint part is adopted, so that potential safety hazards caused by exposure of the rotating part are avoided, and the operation stability of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to control equipment technical field, specifically, relate to a brake motor structure that can be conveniently safe after power failure. BACKGROUND

[0002] When the conventional brake motor needs to rotate the motor shaft manually to realize the equipment reset after power failure, a design scheme of processing an outer hexagonal protruding structure at the tail of the motor shaft is usually adopted. The outer hexagonal structure needs to extend to the outside of the motor hood, and the rotation operation is performed through a standard wrench tool. This design has obvious defects in actual application. The processing of the outer hexagonal structure needs to adopt a four-axis machining center for precise milling, which leads to complex production process, prolonged processing period, and increased disassembly and assembly procedures during equipment maintenance.

[0003] The exposed hexagonal structure in the prior art is easy to entangle cables or wrap in foreign matters during equipment operation, which has serious safety hazards. In order to cooperate with the installation of the outer hexagonal protruding part, a special size circular hole must be provided in the motor hood, which not only increases the complexity of the processing procedure of the hood, but also leads to the reduction of the structural strength of the hood. The above problems jointly cause low equipment maintenance efficiency, prominent safety hazards, and serious influence on the reliability and service life of the motor. SUMMARY

[0004] In view of the above technical problems in the related art, the utility model provides a brake motor structure that can be conveniently and safely rotated after power failure, which can overcome the above deficiencies of the prior art.

[0005] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0006] A brake motor structure that can be conveniently and safely rotated after power failure;

[0007] The brake motor structure that can be conveniently and safely rotated after power failure comprises a motor, a motor shaft arranged at the front end of the motor, and a motor shaft extension at the tail of the motor, an outer motor hood is arranged on the motor shaft extension, an axially extending tool engagement part is arranged at the center of the end face of the motor shaft extension, the tool engagement part is an internal hexagonal blind hole structure, a through hole corresponding to the tool engagement part is arranged at the center of the end face of the hood, and the diameter of the through hole is greater than the diameter of the tool engagement part.

[0008] Further, the diameter of the through hole of the hood is 1-3 mm larger than the maximum radial dimension of the tool engagement part.

[0009] Further, the depth of the internal hexagonal blind hole structure is 0.3-0.5 times the diameter of the motor shaft extension, and a limiting boss for preventing tool overload is arranged at the bottom of the internal hexagonal blind hole structure.

[0010] Further, the end of the motor shaft extension is provided with an axial positioning mark, which is a cross line, and the intersection of the cross line coincides with the central axis of the internal hexagonal blind hole.

[0011] Further, the inner side of the motor shroud is provided with an annular reinforcing rib surrounding the shroud through hole, and the cross section of the annular reinforcing rib is a trapezoidal structure.

[0012] The utility model discloses the beneficial effects: through the axial internal hexagonal blind hole design of motor shaft tail integral moulding, cooperation shroud through hole's size optimization, effectively simplified the outer hexagonal milling and shroud reaming process, reduce the processing cost, adopt the safety hidden danger of inlay type tool joint part avoided the exposed of rotating part, make equipment operation stability to promote. ACCURACY

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0014] Figure 1 It is the whole structure schematic diagram of the brake motor structure that can be conveniently and safely rotated after power failure according to the embodiment of the utility model;

[0015] Figure 2 It is the structure schematic diagram of the brake motor structure that can be conveniently and safely rotated after power failure according to the embodiment of the utility model;

[0016] Figure 3 It is the whole structure top view of the brake motor structure that can be conveniently and safely rotated after power failure according to the embodiment of the utility model;

[0017] Figure 4 It is the whole structure top view of the brake motor structure that can be conveniently and safely rotated after power failure according to the embodiment of the utility model; Figure 3 The local enlarged view of A in Fig. 1;

[0018] Figure 5 It is the local schematic view of the traditional brake motor structure according to the embodiment of the utility model;

[0019] In the drawing: 1, motor;2, motor shaft;3, motor shaft extension;4, motor shroud;5, tool joint part;6, traditional outer hexagon;7, shroud reaming round hole;8, shroud through hole. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.

[0021] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0022] like Figures 1-4 As shown in the embodiment of this utility model, a brake motor structure that can rotate conveniently and safely after power failure includes a motor 1, a motor shaft 2 disposed at the front end of the motor 1, and a motor shaft extension 3 disposed at the rear end. The motor shaft extension 3 is provided with a motor fan shroud 4. The end face of the motor shaft extension 3 is provided with an axially extending tool engagement portion 5, which is a hexagonal blind hole structure. The end face of the fan shroud 4 is provided with a fan shroud through hole 8 corresponding to the tool engagement portion 5. The diameter of the fan shroud through hole 8 is larger than the diameter of the tool engagement portion 5.

[0023] According to an embodiment of the present invention, a brake motor structure that can rotate conveniently and safely after power failure is provided. In a specific embodiment, the diameter of the through hole 8 of the wind cover is 1-3 mm larger than the maximum radial dimension of the tool joint 5.

[0024] According to an embodiment of the present invention, a brake motor structure that can be conveniently and safely rotated after power failure is provided. In a specific embodiment, the depth of the internal hexagonal blind hole structure is 0.3-0.5 times the diameter of the motor shaft extension 3, and the bottom of the internal hexagonal blind hole structure is provided with a limiting boss to prevent tool overload.

[0025] According to the brake motor structure which can rotate conveniently and safely after power failure, in a specific embodiment, the end of the motor shaft extension 3 is provided with an axial positioning mark, the positioning mark is a cross line, and the intersection point of the cross line coincides with the central axis of the internal hexagonal blind hole.

[0026] According to the brake motor structure which can rotate conveniently and safely after power failure, in a specific embodiment, the inner side of the motor shroud 4 is provided with an annular reinforcing rib surrounding the shroud through hole 8, and the cross section of the annular reinforcing rib is a trapezoidal structure.

[0027] In order to facilitate the understanding of the above technical scheme of the utility model, the above technical scheme of the utility model is described in detail below through specific use mode.

[0028] In specific use, according to the brake motor structure which can rotate conveniently and safely after power failure, including motor 1, motor shaft 2, motor shaft extension 3, and motor shroud 4;The end surface of the motor shaft extension 3 is provided with a tool joint 5, the tool joint 5 is an internal hexagonal blind hole structure, and the internal hexagonal blind hole structure is directly turned out and made on a numerical control lathe.The technical scheme simplifies the process, and does not need to be processed again on four-axis equipment, reduces the workshop waste;Secondly, the motor shaft tail does not protrude from the shroud, avoids the rolling of sundries, and improves the safety;Furthermore, it is not necessary to expand the hole in the center of the shroud, which simplifies the process and reduces the waste.

[0029] In summary, by means of the above technical scheme of the utility model, through the axial internal hexagonal blind hole design of the motor shaft tail integrated molding, cooperating with the size optimization of the shroud through hole, the external hexagonal milling processing and shroud expansion process are effectively simplified, the processing cost is reduced;The embedded tool joint avoids the safety hazard caused by the exposure of the rotating part, and the equipment operation stability is improved.

[0030] The above only describes preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A brake motor structure which can be rotated conveniently and safely after power failure, characterized in that, The motor (1), the motor shaft (2) arranged at the front end of the motor (1) and the motor shaft extension (3) at the tail part, the motor shaft extension (3) is externally provided with a motor shroud (4), the end surface center of the motor shaft extension (3) is provided with an axially extending tool engagement part (5), the tool engagement part (5) is an internal hexagonal blind hole structure; the end surface center of the shroud (4) is provided with a shroud through hole (8) corresponding to the tool engagement part (5), the diameter of the shroud through hole (8) is greater than the diameter of the tool engagement part (5).

2. A brake motor construction which can be easily and safely rotated after power failure according to claim 1, characterized in that, The diameter of the shroud through hole (8) is 1-3mm larger than the maximum radial dimension of the tool engagement part (5).

3. A brake motor construction which can be easily and safely rotated after power failure according to claim 1, characterized in that, The depth of the internal hexagonal blind hole structure is 0.3-0.5 times the diameter of the motor shaft extension (3), and the bottom of the internal hexagonal blind hole structure is provided with a limiting boss for preventing tool overload.

4. A brake motor construction which can be easily and safely rotated after power failure according to claim 1, wherein The end of the motor shaft extension (3) is provided with an axial positioning mark, the positioning mark is a cross line, and the intersection point of the cross line coincides with the center axis of the internal hexagonal blind hole.

5. A brake motor construction which can be easily and safely rotated after power failure according to claim 1, wherein The inner side of the motor shroud (4) is provided with an annular reinforcing rib surrounding the shroud through hole (8), and the cross section of the annular reinforcing rib is a trapezoidal structure.

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