Compact servo motor brake mounting structure

Abstract

The utility model discloses a compact servo motor brake mounting structure, which belongs to the field of compact servo motor brake mounting structures and comprises a motor shell, a rotor, a bearing device, a hexagon bolt, a positioning plate, a positioning bolt, a brake device, a fixer and the like. According to the utility model, the brake device is fixed between the fixer and the positioning plate through the fixer, the positioning plate, the casing and the positioning bolt, the positioning plate is arranged between the motor casing and the casing, and the brake device is fixed in the servo motor through the hexagon bolt, so that the brake is arranged in the servo motor, and meanwhile, the space is saved; according to the structure, the servo motor is miniaturized and compact, the brake device is convenient to mount and dismount, and later maintenance, servo motor maintenance and part replacement are convenient. The bearing device can fix the rotor and can operate in a multidirectional working environment.

Description

Technical Field

[0001] The utility model relates to the field of brakes, in particular to an installation structure of a servo motor brake. Background Technique

[0002] A servo motor refers to an engine that controls the movement of mechanical components in a servo system. The servo motor can very accurately reproduce the position, speed, and torque commands required by the upper computer in a controlled state to drive the load object. A brake is a device used to control the operation of a motor. It can control the rotational speed, power, and rotational speed of the motor, and it can provide the reliability and safety of the motor and its control system. An electric motor brake is a disc brake with a DC coil excitation. When the DC coil is energized, the electromagnetic force generated acts on the spring to release the brake; it is used to fix the motor shaft when the motor stops running.

[0003] At present, the electromagnetic brakes of servo motors are all installed on the rear end cover of the motor, and an additional protective cover is installed outside. This installation method is complex, costly, and the body is relatively long, and it is not suitable for working in a variety of complex environments. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems raised in the background technique, and a compact installation structure of a servo motor brake is designed.

[0005] To achieve the above purpose, the technical solution of the utility model is a compact installation structure of a servo motor brake, including a motor housing, a stator, a rotor, a braking device, a motor chamber, a positioning plate, a housing, a circuit board, a power supply interface, and a bearing device. The positioning plate is detachably installed at the rear end of the motor housing. There is a motor chamber between the positioning plate and the motor housing. The stator is fixedly installed at the front end of the motor chamber. The rotor is rotatably installed at the center of the stator. The braking device is detachably installed at the rear end of the motor chamber. The housing is detachably installed at the rear end of the positioning plate. The motor housing, the positioning plate, and the housing are fixed by hexagon bolts. There is a control chamber between the positioning plate and the housing. The bearing device is detachably installed at the front end of the control chamber. The circuit board is fixedly installed at the rear end of the control chamber. The power supply interface is fixedly installed on the front of the housing.

[0006] Preferably, a fixator is detachably installed at the front end of the braking device. A brake disc is rotatably installed at the rear end of the fixator. A wear-resistant sheet is movably installed at the rear end of the brake disc. The brake is detachably installed at the rear end of the wear-resistant sheet. The fixator and the positioning plate are fixed by positioning bolts.

[0007] Preferably, a flat key is detachably installed at the rear end of the rotor, and the flat key is fixedly connected to the brake disc.

[0008] Preferably, a bearing seat is detachably installed at the rear end of the positioning plate. A bearing is fixedly installed inside the bearing seat. A bearing sleeve is detachably installed inside the bearing. A rotor is detachably installed inside the bearing sleeve. The bearing sleeve and the rotor are fixed by a threaded pin.

[0009] Preferably, a spring seat is fixedly installed at the front end of the brake. A spring is fixedly installed on the spring seat. A spring coil telescopic rod is vertically movably installed on the spring. An electromagnetic coil is fixedly installed at the rear end of the brake.

[0010] Advantages:

[0011] The utility model provides a compact servo motor brake installation structure, which has the following advantages. Through its structural design, the braking device is fixed between the fixing device and the positioning plate by using the fixing device, the positioning plate and the positioning bolt. Then the positioning plate is installed between the motor housing and the casing, and the braking device is fixed inside the servo motor by hexagon bolts, so as to install the brake inside the servo motor, save space at the same time, and realize the miniaturization and compactness of the servo motor. Moreover, this structure is convenient for the installation and disassembly of the braking device, and convenient for later maintenance, servicing and part replacement of the servo motor. The bearing device can fix the rotor and can operate in a multi-directional working environment. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of a compact servo motor brake installation structure described in the utility model;

[0013] Figure 2 is the sectional structural schematic diagram of a compact servo motor brake installation structure described in the utility model;

[0014] Figure 3 is the sectional structural schematic diagram of the braking device of a compact servo motor brake installation structure described in the utility model.

[0015] In the figure, 1. Servo motor housing; 2. Stator; 3. Rotor; 4. Braking device; 5. Motor chamber; 6. Positioning plate; 7. Casing; 8. Control chamber; 9. Circuit board; 10. Power interface; 11. Bearing device; 12. Fixing device; 13. Brake disc; 14. Wear-resistant piece; 15. Brake; 16. Positioning bolt; 17. Hexagon bolt; 18. Bearing seat; 19. Bearing; 20. Bearing sleeve; 21. Threaded pin; 22. Spring seat; 23. Spring; 24. Spring telescopic rod; 25. Electromagnetic coil; 26. Flat key. Detailed Embodiment

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper / lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0018] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installed", "provided / sleeved with", "socketed", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0019] Please refer to Figures 1-3, the present utility model provides a technical solution: a compact servo motor brake mounting structure. It includes a motor housing 1, a stator 2, a rotor 3, a braking device 4, a motor chamber 5, a positioning plate 6, a housing 7, a circuit board 9, a power interface 10, a bearing device 11, a retainer 12, a brake disc 13, a wear-resistant piece 14, a brake 15, a positioning bolt 16, a hexagon bolt 17, a bearing seat 18, a bearing 19, a bearing sleeve 20, a threaded pin 21, a spring seat 22, a spring 23, a spring telescopic rod 24, an electromagnetic coil 25, and a flat key 26. A positioning plate 6 is detachably mounted at the rear end of the motor housing 1. There is a motor chamber 5 between the positioning plate 6 and the motor housing 1. A stator 2 is fixedly mounted at the front end of the motor chamber 5. A rotor 3 is rotatably mounted at the center of the stator 2. A braking device 4 is detachably mounted at the rear end of the motor chamber 5. A housing 7 is detachably mounted at the rear end of the positioning plate 6. The motor housing 1, the positioning plate 6, and the housing 7 are fixed by a hexagon bolt 17. There is a control chamber 8 between the positioning plate 6 and the housing 7. A bearing device 11 is detachably mounted at the front end of the control chamber 8. A circuit board 9 is fixedly mounted at the rear end of the control chamber 8. A power interface 10 is fixedly mounted on the front of the housing 7. A retainer 12 is detachably mounted at the front end of the braking device 4. A brake disc 13 is rotatably mounted at the rear end of the retainer 12. A wear-resistant piece 14 is movably mounted at the rear end of the brake disc 13. A brake 15 is detachably mounted at the rear end of the wear-resistant piece 14. The retainer 12 and the positioning plate 6 are fixed by a positioning bolt 16. A flat key 26 is detachably mounted at the rear end of the rotor 3. The flat key 26 is connected to fix the brake disc 13. A bearing seat 18 is detachably mounted at the rear end of the positioning plate 6. A bearing 19 is fixedly mounted inside the bearing seat 18. A bearing sleeve 20 is detachably mounted inside the bearing 19. A rotor 3 is detachably mounted inside the bearing sleeve 20. The bearing sleeve 20 and the rotor 3 are fixed by a threaded pin 21. A spring seat 22 can be fixedly mounted at the front end of the brake 15. A spring 23 is fixedly mounted on the spring seat 22. A spring telescopic rod 24 can be vertically movably mounted on the spring 23. An electromagnetic coil 25 is fixedly mounted at the rear end of the brake 15.

[0020] By those skilled in the art, all the electrical components in this case are connected to their adapted power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the sequence of operation among the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in this field. The following mainly introduces the working principle and process, and no further description of the electrical control will be given.

[0021] In this embodiment:

[0022] During operation, first, power is supplied. The rotor 3 in the servo motor rotates. Meanwhile, the circuit board 9 controls the current to pass through the electromagnetic coil 25 to generate magnetic force. The magnetic force adsorbs the wear-resistant piece 14. The wear-resistant piece 14 gives a tensile force to the spring telescopic rod 24, and the spring telescopic rod 24 compresses the spring 23. The frictional force between the brake disc 13 and the wear-resistant piece 14 disappears, and the servo motor operates normally. When braking is required, the power supply is cut off, the servo motor stops working, the magnetic force of the electromagnetic coil 25 disappears, the spring 23 releases and rebounds, pushing the spring telescopic rod 24. The spring telescopic rod 24 pushes the wear-resistant piece 14, and the wear-resistant piece 14 contacts the brake disc 13 to generate frictional force for braking, and the rotor 3 stops rotating. When maintenance is required, unscrew the hexagon bolt 17, remove the machine shell 7, take out the positioning piece 6, unscrew the threaded pin 21, take out the bearing seat 18, and then unscrew the positioning bolt 16 to remove the retainer 12, the brake disc 13 and the wear-resistant piece 14, and take out the flat key 26, then the connection between the brake 15 and the rotor 3 can be removed to maintain the brake.

[0023] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compact servo motor brake mounting structure, comprising a motor housing (1), a stator (2), a rotor (3), a brake device (4), a motor chamber (5), a positioning plate (6), a housing (7), a circuit board (9), a power interface (10), and a bearing device (11), characterized in that: A positioning plate (6) is detachably mounted on the rear end of the motor housing (1); a motor chamber (5) is disposed between the positioning plate (6) and the motor housing (1); a stator (2) is fixedly mounted on the front end of the motor chamber (5); a rotor (3) is rotatably mounted at the center of the stator (2); a brake device (4) is detachably mounted on the rear end of the motor chamber (5); a housing (7) is detachably mounted on the rear end of the positioning plate (6); the motor housing (1), the positioning plate (6) and the housing (7) are fixed by hexagonal bolts (17); a control chamber (8) is disposed between the positioning plate (6) and the housing (7); a bearing device (11) is detachably mounted on the front end of the control chamber (8); a circuit board (9) is fixedly mounted on the rear end of the control chamber (8); and a power supply interface (10) is fixedly mounted on the front of the housing (7).

2. A compact servo motor brake mounting structure according to claim 1, characterized in that: The front end of the brake device (4) is detachably mounted with a fixer (12), the rear end of the fixer (12) is rotatably mounted with a brake disc (13), the rear end of the brake disc (13) is movably mounted with a wear-resistant plate (14), the rear end of the wear-resistant plate (14) is detachably mounted with a brake (15), and the fixer (12) and the positioning plate (6) are fixed by positioning bolts (16).

3. A compact servo motor brake mounting structure according to claim 2, characterized in that: A flat key (26) is detachably mounted on the rear end of the rotor (3), and the flat key (26) is connected to and fixed to the brake disc (13).

4. A compact servo motor brake mounting structure according to claim 1, characterized in that: A removable bearing seat (18) is installed at the rear end of the positioning plate (6), a bearing (19) is fixedly installed in the bearing seat (18), a removable bearing sleeve (20) is installed in the bearing (19), a rotor (3) is removably installed in the bearing sleeve (20), and the bearing sleeve (20) and the rotor (3) are fixed by a threaded pin (21).

5. The compact servo motor brake mounting structure according to claim 2, characterized in that: A spring seat (22) is fixedly mounted on the front end of the brake (15), a spring (23) is fixedly mounted on the spring seat (22), a spring coil telescopic rod (24) that can move up and down is mounted on the spring (23), and an electromagnetic coil (25) is fixedly mounted on the rear end of the brake (15).

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