Quick power-off brake motor

Abstract

The utility model discloses a quick power-off brake motor, and belongs to the field of motors, the quick power-off brake motor comprises a motor main body, a fan cover is fixed at a rear end cover of the motor main body through a plurality of bolts, a movable groove is formed in the top of the fan cover, an operation handle is movably inserted in the movable groove, and a thread part at the bottom end of the operation handle is in threaded connection with an electromagnetic brake; the electromagnetic brake is installed on a rear end cover of the motor body, and an installation piece is installed in the movable groove. The pre-positioning device further comprises a pre-positioning piece, the pre-positioning piece is installed on the installation piece, the installation piece is used for fixing the installation piece to the movable groove, and the pre-positioning piece is used for conducting preliminary pre-positioning on the operation handle. The quick power-off brake motor has the beneficial effect that the quick power-off brake motor is provided. And by arranging the mounting piece, the mounting seat can be firmly clamped in the movable groove, so that the purposes of mounting and fixing are quickly achieved.

Description

Technical Field

[0001] This application relates to the field of motors, and more particularly, to a rapid power-off braking motor. Background Art

[0002] A rapid power-off braking motor is a type of electric motor designed to quickly stop rotating when the power supply is suddenly cut off. It is usually equipped with a braking device, generally an electromagnetic brake, which can quickly apply a braking force after power-off to ensure the safety of the equipment and prevent accidents. This type of motor is commonly used in situations where quick stops are required, such as elevators, cranes, and certain industrial machinery.

[0003] In the existing rapid power-off braking motor, during the assembly process in a production line, the first step is to install the electromagnetic brake at the rear end of the motor. The second step is to sleeved the fan cover on the outside of the rear end of the motor and fix it with multiple bolts. The third step is to pass the operating handle through the movable slot opened at the top of the fan cover and thread the threaded part at its bottom onto the electromagnetic brake. However, there is no structure for pre-positioning and assisting the installation of the operating handle at the movable slot, resulting in very low efficiency when installing the operating handle. Therefore, a rapid power-off braking motor is needed to assist in solving this problem. Summary of the Utility Model

[0004] The content of this application is used to briefly introduce concepts, which will be described in detail in the following detailed implementation section. The content of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] To solve the technical problems mentioned in the above background art section, some embodiments of this application provide a rapid power-off braking motor, including a motor main body. A fan cover is fixed to the rear end cover of the motor main body by multiple bolts. A movable slot is opened at the top of the fan cover, and an operating handle is movably inserted through the movable slot. The threaded part at the bottom of the operating handle is threadedly connected to the electromagnetic brake, and the electromagnetic brake is installed on the rear end cover of the motor main body. An installation member is installed in the movable slot; a pre-positioning member is further included, and the pre-positioning member is installed on the installation member and is used for initially pre-positioning the operating handle.

[0006] Further, the installation member includes an installation seat with a vertically cross-sectional inverted "convex" shape structure. An activity channel is opened inside the installation seat for the operating activity of the operating handle, and a first inclined surface is opened at the bottom edge of the installation seat.

[0007] Further, through slots are opened on both side walls of the installation seat, and first elastic pieces are fixedly connected to the inner bottom walls of the two through slots.

[0008] Furthermore, the two first elastic sheets are symmetrically distributed about the central axis of the mounting seat, and a bending portion is provided on one side wall of the two first elastic sheets that are opposite to each other.

[0009] Furthermore, the pre-positioning member includes a sliding groove opened at the top of the mounting seat, the bottom end of the sliding groove is connected to the top of the movable channel, a sliding seat with a vertical cross-section in the shape of an "I" is slidably connected in the sliding groove, a positioning groove is opened at the top of the sliding seat, two symmetrical positioning blocks are slidably connected in the positioning groove, the vertical cross-sections of the positioning blocks are all in the shape of an "I", a through hole opened at the center of the bottom end of the sliding seat is provided between the two positioning blocks, the through hole is connected to the positioning groove, and the through hole is used to insert the operating handle.

[0010] Furthermore, arc-shaped clamping openings are provided on opposite side walls of the two positioning blocks, and the arc-shaped clamping openings are used to pre-clamp and fix the outer wall of the operating handle.

[0011] Furthermore, a second inclined surface is provided above the arc-shaped clamping opening and is opened at the top of the positioning block.

[0012] Furthermore, the two ends of the two positioning blocks that are separated from each other are each provided with a first slot with a "convex" cross-section, and the first slot is movably inserted with a first plug-in block with a "convex" cross-section structure, and the ends of the two first plug-in blocks that are separated from each other are each fixed with a second spring piece with an "hourglass" cross-section structure, and the ends of the two second spring pieces that are separated from each other are each fixed with a second plug-in block with a "convex" cross-section structure, and the left and right inner walls of the positioning groove are each provided with a second slot that is adapted to the second plug-in block.

[0013] The beneficial effects of the present application are: providing a fast power-off brake motor, which, by providing a mounting member and combining the provision of a first inclined surface, enables the mounting base to be inserted into the movable groove provided on the top of the fan cover more quickly; secondly, by coordinating the provision of two symmetrical first elastic pieces, and simultaneously providing a bent portion on each of the first elastic pieces, when the mounting base is inserted into the movable groove, the two first elastic pieces can be deformed toward the center of the movable channel, and with the elastic action of the first elastic pieces, the mounting base can be firmly clamped in the movable groove, thereby quickly achieving the purpose of installation and fixation;

[0014] Through the provided pre-positioning members, before installing the fan cover, the assembly workers on the assembly line can pre-install the mounting base on the fan cover in advance, and press the bottom end of the operating handle against the second inclined surfaces provided at the tops of the two positioning blocks, so that the two positioning blocks move away from each other and expand. The bottom end of the operating handle also passes through the through hole and the moving channel in sequence, and combined with the arrangement of the two second elastic pieces, the outside of the operating handle can be pre-clamped and fixed. Through the above pre-clamping and fixing of the operating handle, the assembly efficiency of the operating handle can be greatly improved during subsequent assembly. Brief Description of the Drawings

[0015] Figure 1 is the overall schematic diagram according to an embodiment of the present application;

[0016] Figure 2 is the overall three-dimensional schematic diagram after the installation part is removed from the moving slot according to the present application;

[0017] Figure 3 is the overall three-dimensional structural schematic diagram after the fan cover is removed according to the present application;

[0018] Figure 4 is the overall three-dimensional first perspective structural schematic diagram of each component on the installation part according to the present application;

[0019] Figure 5 is the overall three-dimensional second perspective structural schematic diagram of each component on the installation part according to the present application;

[0020] Figure 6 is the longitudinal sectional structural schematic diagram of the first elastic piece according to the present application;

[0021] Figure 7 is the enlarged structural schematic diagram at A according to the present application.

[0022] Description of the Reference Numerals: 1. Motor main body; 2. Fan cover; 21. Moving slot; 3. Electromagnetic brake; 31. Operating handle; 4. Installation part; 41. Mounting base; 42. Moving channel; 43. First inclined surface; 44. Through slot; 45. First elastic piece; 46. Bent portion; 5. Pre-positioning member; 51. Sliding seat; 52. Through hole; 53. Positioning block; 54. Arc-shaped clamping opening; 55. Second inclined surface; 56. First insertion block; 57. Second elastic piece; 58. Second insertion block. Detailed Description of the Embodiment

[0023] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0024] In addition, it should be noted that for the convenience of description, only parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0025] The present disclosure will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0026] This specific embodiment is a quick power-off braking motor. As Figure 1 shown, the quick power-off braking motor includes a motor main body 1. A fan cover 2 is fixed to the rear end cover of the motor main body 1 by a plurality of bolts. An activity slot 21 is formed at the top of the fan cover 2. An operation handle 31 is movably inserted into the activity slot 21. The bottom threaded part of the operation handle 31 is threadedly connected to an electromagnetic brake 3. The electromagnetic brake 3 is installed on the rear end cover of the motor main body 1. An installation member 4 is installed in the activity slot 21; a pre-positioning member 5 is further included. The pre-positioning member 5 is installed on the installation member 4 and is used for initially pre-positioning the operation handle 31.

[0027] The electromagnetic brake 3 is a device that uses electromagnetic principles to achieve braking. It is a prior art, and its working principle mainly includes the following steps:

[0028] Power supply: There is an electromagnetic coil inside the electromagnetic brake 3. When the motor is in operation, the power supply supplies power to the coil, and the coil generates a magnetic field.

[0029] Electromagnetic action: When the coil is energized, the generated magnetic field causes the iron core or armature in the brake to be attracted, usually separating the brake pads from the brake disc, thereby allowing the motor to rotate freely.

[0030] Power-off braking: When the power supply is disconnected, the coil loses current and the magnetic field disappears. At this time, the spring or gravity will press the brake pads against the brake disc, thereby generating a braking force to quickly slow down or stop the rotation of the motor.

[0031] Recovery state: Once the power supply is restored, the brake will be energized again to release the braking effect, and the motor can be restarted.

[0032] Refer to Figures 2 to 6As shown, in order to facilitate the fixing of the pre-positioning member 5 at the movable groove 21, the mounting member 4 is provided with a mounting base 41 having an inverted "convex" cross-sectional structure. An activity channel 42 is formed inside the mounting base 41 for the operating activity of the operating handle 31. A first inclined surface 43 is formed at the bottom edge of the mounting base 41. Through slots 44 are formed on both side walls of the mounting base 41. First elastic pieces 45 are fixedly connected to the inner bottom walls of the two through slots 44. The two first elastic pieces 45 are symmetrically distributed about the central axis of the mounting base 41. Bent portions 46 are provided on the side walls of the two first elastic pieces 45 facing away from each other.

[0033] Among them, the bottom dimension of the mounting base 41 is adapted to the dimension of the movable groove 21. The first inclined surface 43 is provided to enable the bottom end of the mounting base 41 to be quickly and accurately inserted into the movable groove 21. When the bottom end of the mounting base 41 is inserted into the movable groove 21, the two first elastic pieces 45 are deformed towards the center of the activity channel 42, and by virtue of the elastic action of the first elastic pieces 45, the mounting base 41 can be firmly clamped in the movable groove 21. When the bottom end of the mounting base 41 is pulled out from the movable groove 21, under the reverse action of the two first elastic pieces 45, it returns to the Figure 6 state in the attachment. The width of the activity channel 42 should be larger than the outer peripheral diameter of the middle part of the operating handle 31.

[0034] Refer to Figure 4 and Figure 7As shown, in order to facilitate the pre-positioning of the operating handle 31 in the movable groove 21, so that the subsequent threaded connection of the operating handle 31 to the electromagnetic brake 3 is more convenient and quick, the pre-positioning member 5 is provided to include a sliding groove opened at the top of the mounting seat 41, the bottom end of the sliding groove is connected to the top of the movable channel 42, and a sliding seat 51 with a vertical cross-section of an "I"-shaped structure is slidably connected in the sliding groove. A positioning groove is opened at the top of the sliding seat 51, and two symmetrical positioning blocks 53 are slidably connected in the positioning groove. The vertical cross-sections of the positioning blocks 53 are all "I"-shaped structures. A through hole 52 opened at the center of the bottom end of the sliding seat 51 is provided between the two positioning blocks 53. The through hole 52 is connected to the positioning groove, and the through hole 52 is used to insert the operating handle 31 , an arc-shaped clamping opening 54 is provided on the opposite side wall of the two positioning blocks 53, and the arc-shaped clamping opening 54 is used to pre-clamp and fix the outer wall of the operating handle 31. A second inclined surface 55 is provided on the top of the positioning block 53, and a first slot with a cross-section is provided at the opposite end of the two positioning blocks 53. A first plug-in block 56 with a "convex" cross-section is movably inserted in the first slot. A second spring piece 57 with an "hourglass" cross-section is fixedly connected to the opposite end of the two first plug-in blocks 56. A second plug-in block 58 with a "convex" cross-section is fixedly connected to the opposite end of the two second spring pieces 57. A second slot adapted to the second plug-in block 58 is provided on the inner walls on both sides of the left and right sides of the positioning groove.

[0035] The sliding seat 51 is provided to facilitate the movement of the operating handle 31 so that when the operating handle 31 is operated, the sliding seat 51 also slides in the sliding groove. The size of the through hole 52 should be set larger than the diameter of the outer periphery of the middle part of the operating handle 31, so that the operating handle 31 is not easily obstructed when being operated. The arc-shaped clamping opening 54 needs to be adapted to the outer periphery of the middle part of the operating handle 31. Figure 4 The second spring piece 57 is in a squeezed state. When the operating handle 31 is removed, the opposite ends of the two positioning blocks 53 should be in a fitted state. Combined with the arrangement of the first plug-in block 56 and the second plug-in block 58, it is convenient to replace or install the second spring piece 57.

[0036] Working principle:

[0037] When the mounting member 4 needs to be installed in the movable groove 21, the mounting base 41 can be inserted into the movable groove 21 provided on the top of the fan cover 2. During the insertion process, the first inclined surface 43 is provided, so that the insertion process is convenient and quick. At the same time, the two symmetrical first elastic pieces 45 are provided, and the first elastic pieces 45 are each provided with a bent portion 46, so that the two first elastic pieces 45 are deformed toward the center of the movable channel 42. With the help of the elastic action of the first elastic pieces 45, the mounting base 41 can be firmly clamped in the movable groove 21.

[0038] Secondly, before installing the fan cover 2, the bottom end of the operating handle 31 is pressed against the second inclined surfaces 55 provided at the tops of the two positioning blocks 53, so that the two positioning blocks 53 move away from each other and expand. The bottom end of the operating handle 31 also passes through the through hole 52 and the movable channel 42 in sequence, and combined with the arrangement of the two second elastic pieces 57, the outside of the operating handle 31 can be pre-clamped and fixed. Through the above pre-clamping and fixing of the operating handle 31, the operating handle 31 can be directly threadedly connected to the electromagnetic brake 3 while installing the fan cover 2, thereby greatly improving the assembly efficiency of the motor.

[0039] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A quick power-off braking motor, comprising a motor body. A fan cover is fixedly attached to the rear end cover of the motor body by a plurality of bolts. An activity slot is provided at the top of the fan cover. An operating handle is movably inserted into the activity slot. The threaded portion at the bottom end of the operating handle is threadedly connected to an electromagnetic brake. The electromagnetic brake is installed on the rear end cover of the motor body. It is characterized in that: A mounting piece is installed in the movable groove; It also includes a pre-positioning member, which is installed on the mounting member and is used to preliminarily pre-position the operating handle.

2. The quick power-off braking motor according to claim 1, characterized in that: The mounting member includes a mounting seat with an inverted "convex" structure in vertical section, an inner side of the mounting seat is provided with a movable channel, the movable channel is used for operating the handle, and a first inclined surface is provided at the bottom edge of the mounting seat.

3. The quick power-off braking motor according to claim 2, wherein: A through slot is formed on both side walls of the mounting seat, and a first elastic piece is fixedly connected to the inner bottom walls of the two through slots.

4. The quick power-off braking motor according to claim 3, wherein: The two first elastic pieces are symmetrically distributed about the central axis of the mounting seat, and a bending portion is provided on one side wall of the two first elastic pieces that are opposite to each other.

5. The quick power-off braking motor according to claim 2, characterized in that: The pre-positioning member includes a sliding groove opened at the top of the mounting seat, the bottom end of the sliding groove is connected to the top of the movable channel, a sliding seat with a vertical cross-section of an "I"-shaped structure is slidably connected in the sliding groove, a positioning groove is opened at the top of the sliding seat, two symmetrical positioning blocks are slidably connected in the positioning groove, the vertical cross-sections of the positioning blocks are all "I"-shaped structures, a through hole opened at the center of the bottom end of the sliding seat is provided between the two positioning blocks, the through hole is connected to the positioning groove, and the through hole is used to insert an operating handle.

6. The quick power-off braking motor according to claim 5, characterized in that: An arc-shaped clamping opening is provided on one side wall of the two positioning blocks facing each other, and the arc-shaped clamping opening is used to pre-clamp and fix the outer wall of the operating handle.

7. The quick power-off braking motor according to claim 6, wherein: A second inclined surface opened on the top of the positioning block is provided above the arc-shaped clamping opening.

8. The quick power-off braking motor according to claim 5, wherein: The two ends of the two positioning blocks that are separated from each other are each provided with a first slot with a "convex" cross-section, and the first slots are each movably inserted with a first plug-in block with a "convex" cross-section structure. The ends of the two first plug-in blocks that are separated from each other are each fixedly connected with a second spring piece with an "hourglass" cross-section structure. The ends of the two second spring pieces that are separated from each other are each fixedly connected with a second plug-in block with a "convex" cross-section structure. Second slots that are compatible with the second plug-in blocks are each provided on the inner walls on both sides of the left and right sides of the positioning groove.

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