Permanent magnet synchronous traction machine

Abstract

The utility model provides a permanent magnet synchronous traction machine, which comprises a base, a traction machine main body, a rotor, a traction wheel, a cover plate, an anti-jumping mechanism and a support frame, the traction machine main body is fixed on the upper side surface of the base, a plurality of permanent magnets are fixed on the inner wall of the traction machine main body, and the rotor is arranged in the middle of the permanent magnets; the rotor is rotationally connected with the traction machine body, and a traction wheel is fixed to the rotor. The side face, close to the traction machine body, of the traction wheel is rotationally connected with a cover plate, and the cover plate is fixed to the traction machine body. Anti-jumping mechanisms are fixed to the two sides of the traction machine body. The end, away from the traction machine body, of the rotor is rotationally connected with the supporting frame. Due to the arrangement of the anti-jumping mechanism and the supporting frame, when the traction wheel is used, jumping of a steel cable on the traction wheel can be avoided, movement of the steel cable is assisted, a rotor can be supported, and whether the traction wheel is damaged or not can be monitored.

Description

Technical Field

[0001] This utility model belongs to the field of traction machine technology, and in particular relates to a permanent magnet synchronous traction machine. Background Technology

[0002] Permanent magnet synchronous traction machines, as the core drive component of elevator systems, are widely used in the modern elevator industry due to their advantages such as high efficiency, energy saving, and smooth transmission. They transmit power through the interaction between permanent magnets and the rotor, driving the traction sheave to rotate, which in turn pulls the elevator car and counterweight to complete the vertical transportation task.

[0003] However, existing permanent magnet synchronous traction machines have the following drawbacks in practical use:

[0004] First, existing permanent magnet synchronous traction machines lack anti-jump structures for the steel cables, making them prone to jumping when running on the traction sheave, thus affecting the safety and stability of elevator operation. Second, during long-term use, the end of the rotor furthest from the main body of the existing permanent magnet synchronous traction machine is prone to bending due to uneven stress, reducing the overall performance and reliability of the equipment. In addition, existing permanent magnet synchronous traction machines lack traction sheave damage detection devices, making it impossible to detect wear, cracks, and other damage on the surface of the traction sheave in a timely manner.

[0005] Therefore, it is essential to invent a permanent magnet synchronous traction machine. Utility Model Content

[0006] To address the above problems, this utility model proposes a permanent magnet synchronous traction machine, and the technical solution used is as follows:

[0007] A permanent magnet synchronous traction machine includes a base, a traction machine body, a rotor, a traction sheave, a cover plate, an anti-jump mechanism, and a support frame. The traction machine body is bolted to the upper side of the base, and a plurality of permanent magnets are fixed to the inner wall of the traction machine body. A rotor is disposed in the middle of the permanent magnets. The rotor is rotatably connected to the traction machine body via a support bearing, and one end of the rotor is disposed on the outer side of the traction machine body. A traction sheave is bolted to the rotor on the outer side of the traction machine body, and the outer side of the traction sheave has a groove. The side of the traction sheave closest to the traction machine body is rotatably connected to the cover plate via a support bearing, and the cover plate is bolted to the traction machine body. Anti-jump mechanisms are bolted to both sides of the traction machine body, and the output ends of the anti-jump mechanisms are disposed on the outer side of the traction sheave. The end of the rotor furthest from the traction machine body is rotatably connected to the support frame via a support bearing, and the support frame is bolted to both the base and the anti-jump mechanism.

[0008] Furthermore, the anti-jump mechanism includes a mounting plate, a support plate, a roller, and a gear. The mounting plate is fixed to the traction machine body by bolts, and two support plates are welded to the side of the mounting plate. A roller is rotatably mounted between the support plates via a support bearing. The outer side of the roller has several limiting grooves that adapt to the groove of the traction sheave, and a gear is fixed to the outer side of the roller, which meshes with the traction sheave. A support frame is fixed to one end of the mounting plate by bolts. This arrangement can prevent the steel cable from jumping on the traction sheave and also assists in the movement of the steel cable.

[0009] Furthermore, the support frame includes a positioning plate, an upright plate, a base plate, and a damage detection mechanism. Both ends of the positioning plate are fixed to corresponding anti-jump mechanisms via bolts, and a rotor is rotatably mounted on the middle of the positioning plate via a support bearing. An upright plate is welded to the lower middle of the positioning plate, and a base plate is welded to the lower end of the upright plate. One end of the base plate is fixed to a base via bolts. A damage detection mechanism is bolted to the upper side of the base plate. The output end of the damage detection mechanism contacts the middle of an adjacent groove on the traction sheave, and the damage detection mechanism is electrically connected to an external control device via a data cable. This configuration provides support for the end of the rotor furthest from the traction machine body.

[0010] Furthermore, the damage detection mechanism includes a protective shell, sliding columns, steel balls, and pressure sensors. The protective shell is fixed to the side of the base plate by bolts, and several sliding columns are slidably installed inside the protective shell. The upper end of each sliding column is rotatably mounted with a steel ball via a ball joint, wherein the steel ball contacts the middle of an adjacent groove on the traction sheave. The lower end of each sliding column is provided with a pressure sensor, wherein the pressure sensor is fixed to the protective shell by bolts, and the pressure sensor is electrically connected to an external control device via a data cable. This configuration enables the monitoring of whether the traction sheave is damaged.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The anti-jump mechanism of this utility model has the following features: when the steel cable passes through the groove of the traction sheave, the limiting groove on the roller can limit the position of the steel cable, thereby preventing the steel cable from jumping on the traction sheave. In addition, when the traction sheave moves the steel cable, the traction sheave can drive the roller to rotate in the opposite direction through the gear, thereby assisting the movement of the steel cable.

[0013] 2. The support frame of this utility model can support the end of the rotor away from the main body of the traction machine during use, so as to prevent the rotor from bending after long-term use. In addition, the damage detection mechanism can detect whether the traction wheel is damaged. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a first-view structural schematic diagram of the present invention.

[0016] Figure 2 This is a structural schematic diagram of the present invention from a second perspective.

[0017] Figure 3 This is a structural schematic diagram of the anti-jump mechanism of this utility model.

[0018] Figure 4 This is a structural schematic diagram of the support frame of this utility model.

[0019] Figure 5 This is a structural schematic diagram of the damage detection mechanism of this utility model.

[0020] In the picture:

[0021] 1-Base, 2-Traction machine body, 3-Rotor, 4-Traction wheel, 5-Cover plate, 6-Anti-jump mechanism, 61-Mounting plate, 62-Support plate, 63-Roller, 64-Gear, 7-Support frame, 71-Positioning plate, 72-Upright plate, 73-Base plate, 74-Damage detection mechanism, 741-Protective shell, 742-Sliding column, 743-Steel ball, 744-Pressure sensor. Detailed Implementation

[0022] 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 without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Please see Figures 1 to 5As shown, this utility model is a permanent magnet synchronous traction machine, including a base 1, a traction machine body 2, a rotor 3, a traction sheave 4, a cover plate 5, an anti-jump mechanism 6, and a support frame 7. The traction machine body 2 is fixed to the upper side of the base 1 by bolts, and several permanent magnets are fixed to the inner wall of the traction machine body 2. The rotor 3 is arranged in the middle of the permanent magnets. The rotor 3 is rotatably connected to the traction machine body 2 through a support bearing, and one end of the rotor 3 is arranged on the outside of the traction machine body 2. The rotor 3 on the outside of the traction machine body 2 is fixed by bolts. There is a traction sheave 4, and the outer side of the traction sheave 4 has a groove. The side of the traction sheave 4 near the traction machine body 2 is rotatably connected to the cover plate 5 through a support bearing, wherein the cover plate 5 is fixed to the traction machine body 2 by bolts. Both sides of the traction machine body 2 are fixed with anti-jump mechanisms 6 by bolts, wherein the output end of the anti-jump mechanism 6 is located on the outside of the traction sheave 4. The end of the rotor 3 away from the traction machine body 2 is rotatably connected to the support frame 7 through a support bearing, wherein the support frame 7 is fixed to the base 1 and the anti-jump mechanism 6 by bolts respectively.

[0025] Specifically, the anti-jump mechanism 6 includes a mounting plate 61, a support plate 62, a roller 63, and a gear 64. The mounting plate 61 is fixed to the traction machine body 2 by bolts, and two support plates 62 are fixed to the side of the mounting plate 61 by welding. The roller 63 is rotatably mounted between the support plates 62 through a support bearing. The outer side of the roller 63 has several limiting grooves that are adapted to the groove of the traction sheave 4, and a gear 64 is fixed to the outer side of the roller 63. The gear 64 is meshed with the traction sheave 4. One end of the mounting plate 61 is fixed to a support frame 7 by bolts. When the steel cable passes through the groove of the traction sheave 4, the limiting grooves on the roller 63 can limit the position of the steel cable, thereby preventing the steel cable from jumping on the traction sheave 4. In addition, when the traction sheave 4 moves the steel cable, the traction sheave 4 can drive the roller 63 to rotate in the opposite direction through the gear 64, thereby assisting the movement of the steel cable.

[0026] Specifically, the support frame 7 includes a positioning plate 71, an upright plate 72, a base plate 73, and a damage detection mechanism 74. The two ends of the positioning plate 71 are fixed to the corresponding anti-jump mechanism 6 by bolts, and the rotor 3 is rotatably mounted on the middle of the positioning plate 71 through a support bearing. The lower end of the middle of the positioning plate 71 is fixed to the upright plate 72 by welding, and the lower end of the upright plate 72 is fixed to the base plate 73 by welding. One end of the base plate 73 is fixed to the base 1 by bolts. The upper side of the base plate 73 is fixed to the damage detection mechanism 74 by bolts. The output end of the damage detection mechanism 74 is in contact with the middle of the adjacent groove on the traction wheel 4, and the damage detection mechanism 74 is electrically connected to an external control device through a data cable. In use, the positioning plate 71, the upright plate 72, and the base plate 73 can support the end of the rotor 3 away from the traction machine body 2. In addition, the damage detection mechanism 74 can detect whether the traction wheel 4 is damaged.

[0027] Specifically, the damage detection mechanism 74 includes a protective shell 741, sliding columns 742, steel balls 743, and pressure sensors 744. The protective shell 741 is fixed to the upper side of the base plate 73 by bolts, and several sliding columns 742 are slidably installed inside the protective shell 741. The upper end of each sliding column 742 is rotatably mounted with a steel ball 743 via a ball joint, wherein the steel ball 743 contacts the middle of an adjacent groove on the traction sheave 4; the lower end of each sliding column 742 is provided with a pressure sensor 744, wherein the pressure sensor 744 is bolted to the protective shell 741. The housing 741 is fixed, and the pressure sensors 744 are all electrically connected to the external control equipment via data lines. When the traction wheel 4 rotates, the steel ball 743 will rotate accordingly. When the traction wheel 4 is damaged, the traction wheel 4 at the damaged position will lose contact with the steel ball 743, causing the pressure of the corresponding sliding column 742 on the pressure sensor 744 to change. The pressure sensor 744 will transmit a signal to the external control equipment, and the operator can determine whether the traction wheel 4 is damaged by the data detected by the pressure sensor 744.

[0028] Please see Figure 1-5 As shown, this utility model is a permanent magnet synchronous traction machine. Its working principle is as follows: When in use, the main body 2 of the traction machine can drive the traction wheel 4 to rotate through the rotor 3, thereby driving the steel cable to move accordingly. During the movement of the steel cable, the anti-jump mechanism 6 can prevent the steel cable from jumping on the traction wheel 4, and the damage detection mechanism 74 can monitor whether the traction wheel 4 is damaged.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A permanent magnet synchronous traction machine comprising a base (1), a traction machine body (2), a rotor (3), a traction wheel (4), a cover plate (5), an anti-jump mechanism (6) and a support frame (7), characterized in that: The upper side of the base (1) is fixed with a traction machine body (2), and the inner wall of the traction machine body (2) is fixed with a plurality of permanent magnets, and the middle part of the permanent magnet is provided with a rotor (3); the rotor (3) is rotatably connected with the traction machine body (2), and one end of the rotor (3) is arranged outside the traction machine body (2), wherein the traction wheel (4) is fixed on the rotor (3) outside the traction machine body (2), and the outer side of the traction wheel (4) is provided with a groove; the side of the traction wheel (4) close to the traction machine body (2) is rotatably connected with a cover plate (5), wherein the cover plate (5) is fixed with the traction machine body (2); the both sides of the traction machine body (2) are fixed with an anti-jumping mechanism (6), wherein the output ends of the anti-jumping mechanism (6) are arranged outside the traction wheel (4); the end of the rotor (3) away from the traction machine body (2) is rotatably connected with a support frame (7), wherein the support frame (7) is fixed with the base (1) and the anti-jumping mechanism (6) respectively.

2. A permanent magnet synchronous traction machine as claimed in claim 1, characterized in that: The anti-jumping mechanism (6) comprises a mounting plate (61), a support plate (62), a roller (63) and a gear (64), the mounting plate (61) is fixed with the traction machine body (2), and the side of the mounting plate (61) is fixed with two support plates (62); the roller (63) is rotatably installed between the support plates (62), wherein the outer side of the roller (63) is provided with a plurality of limiting grooves matched with the grooves of the traction wheel (4), and the outer side of the roller (63) is fixed with the gear (64), which is meshed with the traction wheel (4); one end of the mounting plate (61) is fixed with the support frame (7).

3. A permanent magnet synchronous traction machine as claimed in claim 1, characterized in that: The support frame (7) comprises a positioning plate (71), a vertical plate (72), a bottom plate (73) and a damage detection mechanism (74), the both ends of the positioning plate (71) are fixed with the corresponding anti-jumping mechanism (6), and the middle part of the positioning plate (71) is rotatably installed with the rotor (3); the middle lower end of the positioning plate (71) is fixed with the vertical plate (72), wherein the lower end of the vertical plate (72) is fixed with the bottom plate (73), and one end of the bottom plate (73) is fixed with the base (1); the upper side of the bottom plate (73) is fixed with the damage detection mechanism (74), wherein the output end of the damage detection mechanism (74) is in contact with the middle part of the adjacent groove of the traction wheel (4), and the damage detection mechanism (74) is electrically connected with the external control device through a data line.

4. A permanent magnet synchronous traction machine as claimed in claim 3, characterized in that: The breakage detection mechanism (74) comprises a protective shell (741), sliding columns (742), steel balls (743) and pressure sensors (744), the protective shell (741) is fixed on the upper side of the bottom plate (73), and a plurality of sliding columns (742) are slidingly installed in the interior of the protective shell (741), the upper ends of the sliding columns (742) are rotatably installed with steel balls (743), wherein the steel balls (743) are in contact with the middle parts of the adjacent grooves on the traction sheave (4); the lower ends of the sliding columns (742) are provided with pressure sensors (744), wherein the pressure sensors (744) are fixed with the protective shell (741), and the pressure sensors (744) are electrically connected with the external control equipment through data lines.

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