Multi-module brake intelligent control large-torque motor

Abstract

The utility model relates to a multi-module brake intelligent control large-torque motor, which comprises a shell and a motor shaft, a brake wheel seat is fixedly arranged at one axial end of the shell, and a brake wheel mounted on a motor shaft is arranged in the brake wheel seat; a plurality of groups of brake modules are circumferentially arranged on the side wall of the brake wheel seat; the multiple sets of brake modules comprise at least two sets of main brake modules and one set of auxiliary brake modules, one set of main brake modules and one set of auxiliary brake modules are provided with power-off brake brakes, and the other set of main brake modules and the other set of auxiliary brake modules are provided with power-on brake brakes. A wiring control box is arranged at the upper end of the shell, and at least a controller is arranged in the wiring control box and can independently control the power-off brake or the power-on brake to act on the brake wheel. According to the scheme, the multiple sets of brake modules are installed at the tail of the motor, the motor can be independently controlled according to actual needs, under the condition that the brake effect of the main brake module is poor or in an emergency, the auxiliary brake module can act on the motor to achieve the precaution brake effect, and the brake safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a high-torque motor with multi-module brake intelligent control. Background Art

[0002] At present, for occasions where motors have braking requirements, the motors are generally equipped with braking devices, and electromagnetic brake modules are generally used. The principle is to power on or off the brake after shutdown so that the brake device can brake and keep the motor stationary.

[0003] Although the structure of installing brake devices on motors is now relatively common, it is basically for small load braking occasions and the brake devices use single or two brakes of the same type:

[0004] For example, a Chinese utility model patent with publication number CN220510902U discloses a drive motor and a carrying equipment with an integrated electromagnetic braking system. The drive motor includes a housing, a central shaft, and a motor body, a planetary reducer and an electromagnetic brake arranged in the housing; the motor body includes a motor stator, a motor rotor and a rotor holder; the planetary reducer includes a sun gear, a planetary gear, a planetary carrier and a ring gear; the electromagnetic brake includes a brake holder, an electromagnetic brake coil, a brake spring and a brake pad; the electromagnetic brake coil is used to adsorb the brake pad and put the brake spring in a compressed state; when the brake spring is released, the brake pad frictionally contacts the internal components of the housing to transmit the braking torque to the housing. Therefore, the utility model can greatly reduce the volume of the drive motor and reduce its manufacturing cost while realizing the power-off braking function of the drive motor, thereby facilitating universal application.

[0005] For example, a Chinese utility model patent with publication number CN216336053U discloses an easily adjustable elevator traction machine based on bilateral braking, comprising a front cover, a machine base, a stator assembly, a rotor assembly, a main shaft, a traction sheave, and a winch gear ring. The front cover is fixedly mounted on the front side of the machine base, the stator assembly is fixedly mounted on the machine base, and the rotor assembly is fixedly connected to the main shaft. A front bearing is provided on the front cover, a rear bearing is provided on the machine base, the main shaft cooperates with the front and rear bearings, the traction sheave is fixedly mounted on the front end of the main shaft via a shaft head pressure plate, the winch gear ring is fixedly mounted on the rear side of the traction sheave, and an encoder is provided at the rear end of the main shaft. Brakes are provided on both sides of the machine base, and the brakes cooperate with the rotor assembly. This solution adds a front box cover to the front side of the machine base, transforming the machine base into an integral frame, thereby increasing the strength of the load-bearing machine base, reducing deformation of the machine base, making the traction machine run more smoothly, and improving load-bearing capacity. The built-in winch gear ring makes the winch more reliable, and the use of bilateral brakes makes adjustment more convenient.

[0006] During the use of the above-mentioned brake motor, there are safety hazards caused by brake failure due to delayed braking action or premature braking and long-term operation, so regular maintenance is required. Summary of the Invention

[0007] In order to solve the above problems, the purpose of the present invention is to provide a high-torque motor with multi-module intelligent brake control, and install a device with multiple brake power supply modes at the tail of the motor. Under normal circumstances, the power-off brake of the main brake module is used. When the power-off brake is detected to be ineffective or in an emergency, the power-on brake of another group of auxiliary brake modules is intervened to improve the safety of braking and solve the safety hazards of the existing motor structure due to delayed braking action or premature braking and brake failure caused by long-term operation.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0009] A high-torque motor with multi-module brake intelligent control, comprising a shell, a motor shaft passing through the shell, and a stator and a rotor arranged in the shell; characterized in that: a brake wheel seat is fixedly provided at one axial end of the shell, and a brake wheel mounted on the motor shaft is provided in the brake wheel seat; a plurality of brake holes are circumferentially provided on the side wall of the brake wheel seat, and a plurality of groups of brake modules are correspondingly installed on the plurality of brake holes; the plurality of groups of brake modules include at least two groups of main brake modules and one group of auxiliary brake modules, one group of the main brake modules and the auxiliary brake modules has a power-off brake, and the other group of modules has a power-on brake; a wiring control box is fixedly provided at the upper end of the shell, and at least a controller is provided in the wiring control box, which can individually control the power-off brake or the power-on brake to act on the brake wheel through the brake hole.

[0010] Preferably, a partition plate is provided in the wiring control box to divide the wiring control box into a high-current area and a low-current area.

[0011] Preferably, a motor input cable terminal block and a motor cable hole are provided in the high-voltage area, and the three-phase power line on the stator winding passes through the motor cable hole and is connected to the motor input cable terminal block. The side end of the wiring control box is constructed with a motor main cable inlet connector electrically connected to the motor input cable terminal block.

[0012] Preferably, the controller is arranged in the weak current area; the weak current area is also provided with an input signal terminal block, a brake power terminal, a transformer, an actuator, a number of main brake cable holes corresponding to the number of main brake modules, and a number of auxiliary brake cable holes corresponding to the number of auxiliary brake modules, wherein,

[0013] The controller is electrically connected to the input signal terminal block, the wires on the main brake module are connected to the actuator through the main brake cable hole, and the wires on the auxiliary brake module are connected to the actuator through the main brake cable hole. A first interface and a second interface are formed on the controller, the first interface is electrically connected to the actuator, and the transformer is electrically connected to the brake power terminal, the second interface and the actuator respectively; the side end of the wiring control box is also constructed with a control signal line connector electrically connected to the input signal terminal block, and a brake power input connector electrically connected to the brake power terminal.

[0014] Preferably, an encoder is also included, and a brake wheel seat end cover is fixedly provided at the axial outer end of the brake wheel seat, the encoder housing is mounted on the brake wheel seat end cover, and the encoder shaft is mounted on the motor shaft; an encoder cable hole is also provided in the weak current area, and the wires on the encoder are electrically connected to the controller through the encoder cable hole.

[0015] Preferably, the main brake module has a power-off brake, and the auxiliary brake module has a power-on brake; the power-off brake includes a brake pad, and when the power-off brake is in the power-off state, the brake pad contacts the brake wheel under the action of external force to generate friction; the power-on brake includes a brake plate, and when the power-on brake is in the power-on state, the brake plate contacts the brake wheel under the action of external force to generate friction.

[0016] Preferably, a front end cover is fixedly provided on the axial end of the housing relative to the brake wheel seat, a front bearing is installed between the front end cover, the housing and the motor shaft, and a rear bearing is installed between the brake wheel seat, the housing and the motor shaft.

[0017] Preferably, a casing lifting lug is further provided on the side end of the wiring control box.

[0018] The present invention adopts the above-mentioned technical solution, installing a brake wheel seat at the rear of the motor. The brake wheel seat is equipped with a brake wheel mounted on the motor shaft. Stopping the brake wheel rotation can stop the motor. Multiple brake modules are installed on the brake wheel seat, including at least two main brake modules for braking the motor in daily use. In addition, at least one auxiliary brake module is also provided within the multiple brake modules. If the main brake module's braking effect is poor or in an emergency, the auxiliary brake module can act on the motor to provide a preventive braking effect, thereby improving braking safety.

[0019] The main brake module and auxiliary brake module adopt different power supply modes, which makes it easier for the controller to control them separately.

[0020] The above solution has the following beneficial effects:

[0021] 1. Install multiple brake modules at the tail of the motor. The multiple brake modules adopt two different power supply modes. The motor can be controlled separately according to actual needs. Specifically, the brake of the main brake module adopts power-off brake control, and the brake of the auxiliary brake module adopts power-on brake control. When the brake effect of the main brake module is poor or in an emergency, the auxiliary brake module can act on the motor to play a preventive braking role, thereby improving the safety of braking.

[0022] 2. An isolation board is installed in the wiring control box to separate strong electricity and weak electricity to reduce signal interference.

[0023] 3. An encoder is installed at the tail of the motor to communicate with the controller in the wiring control box to achieve high-precision brake control.

[0024] 4. The brake wheel seat is installed axially, and multiple groups of brake modules are arranged circumferentially. The compact structure can meet the scene with high requirements on the installation size of large torque motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-torque motor with multi-module brake intelligent control.

[0026] Figure 2 This is a schematic diagram of the installation of the brake wheel.

[0027] Figure 3 A schematic diagram of the three-dimensional structure of a high-torque motor for multi-module brake intelligent control from another perspective.

[0028] Figure 4 This is a schematic diagram of the structure inside the wiring control box.

[0029] Figure 5 This is a side structural diagram of a high-torque motor with multi-module brake intelligent control.

[0030] Figure 6 for Figure 5 Schematic diagram of the cross-section structure. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0034] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] like Figures 1 to 6The high-torque motor with multi-module brake intelligent control shown in the figure includes a shell 1, a motor shaft 2 passing through the shell 1, and a stator 3 and a rotor 4 arranged in the shell 1; a brake wheel seat 5 is fixedly provided at one axial end of the shell 1, and a brake wheel 6 mounted on the motor shaft 2 is provided in the brake wheel seat 5; a plurality of brake holes are circumferentially provided on the side wall of the brake wheel seat 5, and a plurality of groups of brake modules are correspondingly installed on the plurality of brake holes; the plurality of groups of brake modules include at least two groups of main brake modules 7 and a group of auxiliary brake modules 8, one group of the main brake modules 7 and the auxiliary brake modules 8 has a power-off brake, and the other group of modules has a power-on brake; a wiring control box 9 is fixedly provided at the upper end of the shell 1, and at least a controller 10 is provided in the wiring control box 9, which can individually control the power-off brake or the power-on brake to act on the brake wheel 6 through the brake hole.

[0037] In the above technical solution, multiple sets of brake modules are installed at the tail of the motor. The multiple sets of brake modules include a main brake module and an auxiliary brake module. The main brake module and the auxiliary brake module adopt two different power supply modes. The motor can be controlled separately according to actual needs. When the brake effect of the main brake module is poor or in an emergency, the auxiliary brake module can act on the motor to play a preventive braking role, thereby improving the safety of braking.

[0038] Furthermore, a partition plate 11 is provided in the wiring control box 9 to divide the wiring control box 9 into a strong current area and a weak current area. In this technical solution, the partition plate separates the strong current and weak current in the wiring control box to avoid interference of the strong current on the brake signal.

[0039] Furthermore, the high-voltage area is provided with a motor input cable terminal block 12 and a motor cable hole 13. The three-phase power lines on the stator winding pass through the motor cable hole 13 and connect to the motor input cable terminal block 12. The side end of the wiring control box 9 is constructed with a motor main cable inlet connector 14 electrically connected to the motor input cable terminal block 12. In this technical solution, the high-voltage side power input enables the motor to operate normally.

[0040] Furthermore, the controller 10 is arranged in the weak current area; the weak current area is also provided with an input signal terminal block 15, a brake power terminal 16, a transformer 17, an actuator 18, a number of main brake cable holes 19 corresponding to the number of main brake modules 7 and a number of auxiliary brake cable holes 20 corresponding to the number of auxiliary brake modules 8, wherein,

[0041] The controller 10 is electrically connected to the input signal terminal block 15, the wires on the main brake module 7 pass through the main brake cable hole 19 and are connected to the actuator 18, and the wires on the auxiliary brake module 8 pass through the main brake cable hole 19 and are connected to the actuator 18. A first interface and a second interface are formed on the controller 10, the first interface is electrically connected to the actuator 18, and the transformer 17 is electrically connected to the brake power terminal 16, the second interface and the actuator 18 respectively; the side end of the wiring control box 9 is also constructed with a control signal line connector 21 electrically connected to the input signal terminal block 15, and a brake power input connector 22 electrically connected to the brake power terminal 16.

[0042] In the above technical solution, various components are installed on the weak current side to control the braking action. The input signal terminal block transmits the received information to the controller, which transmits the control command to the actuator, which drives the corresponding brake module to brake the brake wheel. The transformer installed in the wiring control box is an intelligent multi-voltage output isolation transformer. It can output DC voltage to power the controller and can also intelligently output dual voltage for brake power supply.

[0043] Furthermore, an encoder 23 is included. A brake wheel seat end cap 24 is fixedly mounted on the axially outer end of the brake wheel seat 5. The housing of the encoder 23 is mounted on the brake wheel seat end cap 24, and the rotating shaft of the encoder 23 is mounted on the motor shaft 2. An encoder cable hole 25 is also provided in the weak current area, through which the wires of the encoder 23 pass to be electrically connected to the controller 10. In this technical solution, an encoder is installed at the rear of the motor and communicates with the controller in the junction box, enabling high-precision brake control. Specifically, the encoder feedback signal is used to monitor the motor's rotation angle in real time to determine whether the main brake module is working and whether slippage is occurring.

[0044] In addition, the communication between the controller and the inverter can monitor the motor current and other parameters during the braking action during the motor shutdown process. Combined with the data fed back by the encoder, the optimal braking action execution time and motor speed can be automatically set to achieve intelligent braking control.

[0045] Furthermore, the main brake module 7 has a power-off brake, and the auxiliary brake module 8 has a power-on brake. The power-off brake includes a brake pad. When the power-off brake is in the de-energized state, the brake pad contacts the brake wheel 6 under the action of an external force to generate friction. The power-on brake includes a brake plate 26. When the power-on brake is in the energized state, the brake plate 26 contacts the brake wheel 6 under the action of an external force to generate friction. In this technical solution, at least two groups of main brake modules use mainstream power-off brakes. After power is cut off, the equipment stops running safely, with a high safety factor. At least one group of auxiliary brake modules uses a power-on brake. If the power-off brake is ineffective or in an emergency, the power-on brake is energized to intervene, further contacting the brake wheel to keep the motor stationary, thereby improving braking safety.

[0046] Furthermore, a front end cover 27 is fixedly provided on the housing 1 at one axial end relative to the brake wheel seat 5. A front bearing 28 is installed between the front end cover 27, the housing 1, and the motor shaft 2. A rear bearing 29 is installed between the brake wheel seat 5, the housing 1, and the motor shaft 2. In this technical solution, both the front and rear bearings play a role in reducing friction and providing support, and the rear bearing also plays a role in reducing friction and providing support for the brake wheel seat.

[0047] Furthermore, a housing lifting lug 30 is provided on the side end of the wiring control box 9. In this technical solution, the housing lifting lug facilitates the hoisting of the motor and improves installation efficiency.

[0048] In the above technical solution, the brake devices installed on the existing motors are basically for small load braking occasions and the brake devices adopt single or two brakes of the same type. Due to the delay in braking action or premature braking and long-term operation, the brake failure causes safety hazards and therefore requires frequent maintenance. The above solution installs multiple sets of brake modules at the tail of the motor. The multiple sets of brake modules include a main brake module and an auxiliary brake module. The main brake module and the auxiliary brake module adopt two sets of different power supply modes. The motor can be controlled separately according to actual needs. When the braking effect of the main brake module is poor or in an emergency, the auxiliary brake module can act on the motor to play a preventive braking role, thereby improving braking safety and reducing maintenance frequency.

[0049] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations 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 any one or more embodiments or examples.

[0050] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A high-torque motor with multi-module brake intelligent control, comprising a housing (1), a motor shaft (2) passing through the housing (1), and a stator (3) and a rotor (4) disposed in the housing (1); characterized in that: A brake wheel seat (5) is fixedly provided at one axial end of the housing (1), and a brake wheel (6) mounted on the motor shaft (2) is provided in the brake wheel seat (5); a plurality of brake holes are circumferentially provided on the side wall of the brake wheel seat (5), and a plurality of brake modules are correspondingly mounted on the plurality of brake holes; the plurality of brake modules include at least two main brake modules (7) and one auxiliary brake module (8), wherein one of the main brake modules (7) and the auxiliary brake modules (8) has a power-off brake, and the other has a power-on brake; a wiring control box (9) is fixedly provided at the upper end of the housing (1), and at least a controller (10) is provided in the wiring control box (9) to independently control the power-off brake or the power-on brake to act on the brake wheel (6) through the brake holes.

2. The multi-module brake intelligent control high torque motor according to claim 1, characterized in that: A partition plate (11) is provided in the wiring control box (9) to divide the wiring control box (9) into a strong current area and a weak current area.

3. The multi-module brake intelligent control high torque motor according to claim 2, characterized in that: A motor input cable terminal block (12) and a motor cable hole (13) are provided in the strong electric area. The three-phase power line on the stator winding passes through the motor cable hole (13) and is connected to the motor input cable terminal block (12). A motor main cable inlet connector (14) electrically connected to the motor input cable terminal block (12) is constructed at the side end of the wiring control box (9).

4. The multi-module brake intelligent control high torque motor according to claim 3, characterized in that: The controller (10) is arranged in a weak current area; the weak current area is also provided with an input signal terminal block (15), a brake power connection terminal (16), a transformer (17), an actuator (18), a number of main brake cable holes (19) corresponding to the number of main brake modules (7), and a number of auxiliary brake cable holes (20) corresponding to the number of auxiliary brake modules (8), wherein: The controller (10) is electrically connected to the input signal terminal block (15), the wires on the main brake module (7) pass through the main brake cable hole (19) to connect to the actuator (18), and the wires on the auxiliary brake module (8) pass through the main brake cable hole (19) to connect to the actuator (18). A first interface and a second interface are formed on the controller (10), the first interface is electrically connected to the actuator (18), and the transformer (17) is electrically connected to the brake power terminal (16), the second interface and the actuator (18) respectively; the side end of the wiring control box (9) is also constructed with a control signal line connector (21) electrically connected to the input signal terminal block (15), and a brake power supply input connector (22) electrically connected to the brake power terminal (16).

5. The multi-module brake intelligent control high torque motor according to claim 4, characterized in that: The invention also includes an encoder (23), wherein the axial outer end of the brake wheel seat (5) is fixedly provided with a brake wheel seat end cover (24), the housing of the encoder (23) is mounted on the brake wheel seat end cover (24), and the rotating shaft of the encoder (23) is mounted on the motor shaft (2); an encoder cable hole (25) is also provided in the weak current area, and the wires on the encoder (23) pass through the encoder cable hole (25) and are electrically connected to the controller (10).

6. The multi-module brake intelligent control high torque motor according to claim 1, characterized in that: The main brake module (7) has a power-off brake, and the auxiliary brake module (8) has a power-on brake; the power-off brake includes a brake pad, and when the power-off brake is in a power-off state, the brake pad contacts the brake wheel (6) under the action of an external force to generate friction; the power-on brake includes a brake plate (26), and when the power-on brake is in a power-on state, the brake plate (26) contacts the brake wheel (6) under the action of an external force to generate friction.

7. The multi-module brake intelligent control high torque motor according to claim 1, characterized in that: A front end cover (27) is fixedly provided on the housing (1) at one axial end relative to the brake wheel seat (5); a front bearing (28) is installed between the front end cover (27), the housing (1) and the motor shaft (2); and a rear bearing (29) is installed between the brake wheel seat (5), the housing (1) and the motor shaft (2).

8. The multi-module brake intelligent control high torque motor according to claim 3, characterized in that: The side end of the wiring control box (9) is also provided with a casing lifting lug (30).

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