Rear cover integrated integral encoder motor for logistics industry

Abstract

The utility model relates to the technical field of encoder motors, in particular to an integrated encoder motor with an integrated rear cover, which is used for the logistics industry. Comprising a stator iron core, a front end cover installed at the front end of the stator iron core, a rear end cover installed at the rear end of the stator iron core and a rotor assembly installed in the stator iron core, and the two ends of the rotor assembly are installed on the front end cover and the rear end cover through bearings respectively. The stator iron core is installed on the periphery of the rotor assembly, the rotor iron core is pressed into a rotating shaft of the rotor assembly, the magnetic steel is bonded to the rotor iron core, the magnetic steel and the stator iron core are matched for induction work, and the integrated encoder installation supporting frame is arranged on the rear cover, so that the encoder and the rear cover of the motor are more convenient to install, and complex concentricity adjustment and other procedures are not needed. The installation time is greatly shortened, so that the encoder is convenient to install and use, the structure is compact, the feedback signal is accurate, the fixing effect of the encoder is better, and the using effect cannot be influenced by loosening of the encoder bracket in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of encoder motor especially relates to a back cover integrated whole type encoder motor for logistics industry. BACKGROUND

[0002] Now many logistics industry on a large number of transplanting machine use, not only improve the work efficiency, also reduce the artificial cost, so for safety, stability and precision requirement will be higher. However the existing encoder motor with on the market in use there is following shortcoming:

[0003] (1) the existing encoder motor with often adopts single motor then again installs the structure of encoder, and such mode is difficult to guarantee the concentricity of encoder installation, is not conducive to the reliability of motor operation, especially in the long time working condition, it is very easy to cause the error of machine equipment to increase.

[0004] (2) the existing encoder motor with when installing often adopts single support to install the encoder, not only occupies the space big, structure is complex, fixed effect is poor, and the later period is not conducive to the production maintenance. UTILITY MODEL CONTENTS

[0005] The utility model discloses a back cover integrated whole type encoder motor for logistics industry is provided to the shortcoming of prior art, reaches the installation of encoder and motor back cover is more convenient, does not need complex and so on the process of adjusting concentricity, greatly shortens the installation time, thereby the installation use of encoder is convenient, compact structure, feedback signal is accurate, the fixed effect of encoder is better, in the use process, will not affect the effect of using because of the encoder support loosening.

[0006] In order to achieve the above object, the utility model adopts the technical scheme: a back cover integrated whole type encoder motor for logistics industry, including stator core, front end cover installed in the front end of the stator core, rear end cover installed in the rear end of the stator core and rotor assembly installed in the inside of the stator core, and the both ends of the rotor assembly are installed on the front end cover and the rear end cover through bearing respectively, still including rotor core, magnetic steel, magnetic steel cover, magnetic pearl cover and encoder magnetic pearl, the stator core is installed in the outer periphery of the rotor assembly, the rotor shaft of the rotor assembly is pressed into the rotor core, the rotor core is bonded with the magnetic steel, the magnetic steel and the stator core cooperate and work by induction, the front surface of the rear end cover is provided with the waist type slot for the outgoing line, the encoder circuit board positioning circular groove support frame and motor three -phase power line adapter circuit board fixed support column, the front surface of the encoder circuit board positioning circular groove support frame is provided with the encoder circuit board positioning surface, the back of the rear end cover is provided with bearing positioning surface, the top of the encoder circuit board positioning circular groove support frame and motor three -phase power line adapter circuit board fixed support column are all provided with mounting screw hole.

[0007] Further, it further includes the encoder rear cover, the encoder rear cover is fixedly connected with the rear end cover, and the encoder rear cover covers the encoder circuit board positioning circular groove support frame and the PCB board as a whole.

[0008] Further, the magnetic steel is segmented magnetic steel, and a plurality of segments of the magnetic steel are staggered distributed on the circumference of the rotor core along the axial direction of the rotor core.

[0009] Further, the segmented magnetic steel includes I section magnetic steel, II section magnetic steel and III section magnetic steel, and the I section magnetic steel, the II section magnetic steel and the III section magnetic steel are distributed in the outer periphery of the rotor core in a segmented and staggered manner.

[0010] Further, the I section magnetic steel, the II section magnetic steel and the III section magnetic steel are staggered in the circumferential direction at an angle of 2.5°.

[0011] Further, a rear shaft is further provided to pass through the rear end cover, the rear shaft passes out of the rear end cover at a distance less than the height of the side wall of the encoder support; the tail end of the rotor shaft of the rotor assembly is bonded with the magnetic pearl cover; and the magnetic pearl cover is internally bonded with the encoder magnetic pearl.

[0012] Further, an encoder circuit board is further provided to be installed on the encoder circuit board positioning circular groove support frame on the front surface of the rear end cover.

[0013] Further, an adapter plate is further provided to be fixed on the motor three -phase power line adapter circuit board fixed support column on the front surface of the rear end cover.

[0014] Further, the power lead wire is arranged to pass through the waist-shaped slot of the rear end cover and welded on the adapter plate.

[0015] Further, the rear end cover is sealed by a sealing groove and an O-shaped ring.

[0016] The utility model provides a motor rear end cover and encoder connecting structure, including the stator core, the front end cover of installation in the stator core front end, the rear end cover of installation in the stator core rear end and the rotor assembly of installation in the stator core inside, and the both ends of rotor assembly are installed on the front end cover and the rear end cover through bearing respectively, still include rotor core, magnetic steel, magnetic steel cover, magnetic pearl cover and encoder magnetic pearl, the stator core is installed on the outer periphery of rotor assembly, and the rotor core is pressed into on the pivot of rotor assembly, and the magnetic steel is bonded on the rotor core, and the magnetic steel and the stator core cooperate and work in induction, the front surface of rear end cover is provided with the waist-shaped slot for the outgoing line, the encoder circuit board positioning circular groove support frame and motor three -phase power line adapter circuit board fixed support column, the front surface of encoder circuit board positioning circular groove support frame is provided with encoder circuit board positioning surface, the back of rear end cover is provided with bearing positioning surface, and the top of encoder circuit board positioning circular groove support frame and motor three -phase power line adapter circuit board fixed support column are all provided with the structure of installing screw hole, reach:

[0017] (1) the utility model saves material and processing cost, and the installation of encoder and motor rear cover is more convenient, does not need complex and same heart procedure, greatly shortens the installation time, thereby facilitating the installation and use of encoder,

[0018] (2) the utility model discloses a kind of encoder and motor structure are combined into one, compact structure, feedback signal is accurate.

[0019] (3) the utility model provides an encoder connecting structure simple structure, easy to produce maintenance, since encoder support and the rear end cover of motor are integrally formed, so the fixing effect of encoder is better, in the use process, it will not affect the use effect due to encoder support loosening;Meanwhile, when installing encoder, the process of fixing encoder support is also saved, more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments in the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1A motor section view of a back cover integrated whole type encoder motor for the logistics industry;

[0022] Figure 2 A rear end cover encoder installation and power line switching structure schematic diagram of a back cover integrated whole type encoder motor for the logistics industry;

[0023] Figure 3 A magnetic steel distribution schematic diagram of a back cover integrated whole type encoder motor for the logistics industry;

[0024] Figure 4 A section view of Figure 3 ;

[0025] Reference signs:

[0026] Rotor assembly 1, front end cover 2, rear end cover 3, stator core 4, insulating gasket 5, O-ring 6, I section magnetic steel 7, II section magnetic steel 8, III section magnetic steel 9, encoder rear cover 10, screw 11, switching plate 12, encoder 13, bearing 14. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0028] In the description of the present application, it should be noted that the orientation or position relationship indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] A back cover integrated whole type encoder motor for the logistics industry, such as Figure 1 , 3As shown, it comprises a stator core 4, a front end cover 2 installed at the front end of the stator core 4, a rear end cover 3 installed at the rear end of the stator core 4, and a rotor assembly 1 installed inside the stator core 4, and the two ends of the rotor assembly 1 are respectively installed on the front end cover 2 and the rear end cover 3 through bearings; it also comprises a rotor core, a magnetic steel, a magnetic steel sleeve, a magnetic bead sleeve and an encoder magnetic bead; the stator core 4 is installed on the outer periphery of the rotor assembly 1, the rotor core is pressed on the shaft of the rotor assembly 1, the magnetic steel is bonded on the rotor core, and the magnetic steel works in cooperation with the stator core 4; the front surface of the rear end cover 3 is provided with a waist-shaped slot for outgoing wires, an encoder circuit board positioning circular groove support frame and a motor three-phase power line adapter circuit board fixing support column; the front surface of the encoder circuit board positioning circular groove support frame is provided with an encoder circuit board positioning surface, the back surface of the rear end cover 3 is provided with a bearing positioning surface, and the top of the encoder circuit board positioning circular groove support frame and the motor three-phase power line adapter circuit board fixing support column are both provided with mounting screw holes.

[0030] Specifically, it comprises a stator core 4, a front end cover 2 installed at the front end of the stator core 4, a rear end cover 3 installed at the rear end of the stator core 4, a rotor 1 installed inside the stator core 4, an insulating gasket 5, an O-ring 6, an encoder rear cover 10, a screw 11, an encoder 13 and an adapter plate 12, wherein the two ends of the rotor 1 are respectively installed on the front end cover 2 and the rear end cover 3 through bearings 14, the stator core 4 is installed on the outer periphery of the rotor 1, the rotor core is pressed on the shaft of the rotor 1 and the magnetic steel is attached, and the magnetic steel works in cooperation with the stator core 4, as shown in Figure 2 As shown, the encoder 13 is installed on the front surface of the rear end cover 3 and is tightly locked with M2 screws 11, and the adapter plate 12 is also installed on the front surface of the rear end cover 3, as shown in Figure 1As shown, the adapter plate 12 and the encoder 13 are fixedly connected by screws 11, thereby solving the problem of insufficient stability of ordinary motors. The front end cover 2 not only protects the internal components of the motor, but also ensures the stability and coaxiality of the rotor assembly 1 when the two ends of the rotor assembly 1 are installed on the front end cover 2 and the rear end cover 3 through bearings, through precise design. This helps to reduce vibration and noise, improve the overall performance of the motor. The rear end cover 3 not only serves as a support part of the motor, but also integrates the encoder 13 and the adapter plate 12. This integrated design significantly improves the installation concentricity of the encoder, reduces installation errors, and thus ensures the stability and reliability of the motor operation. The encoder circuit board positioning circular groove support frame and the motor three-phase power line adapter circuit board fixed support column are provided on the front surface of the rear end cover 3, which provides precise positioning and support for the installation of the encoder and the adapter plate, further improving the overall structural stability and performance of the motor. The bearing positioning surface design on the back surface of the rear end cover 3 ensures the accuracy and stability of the bearing installation, thereby improving the running accuracy and life of the motor. The encoder 13 is tightly locked on the front surface of the rear end cover 3 by M2 screws 11, and is fixedly connected with the adapter plate 12 by screws 11. This design not only simplifies the structure of the motor, but also improves the installation stability and reliability of the encoder. At the same time, the introduction of the adapter plate 12 enables the encoder signal to be easily connected with the external control system, realizing accurate control and monitoring of the motor operation. By integrating the encoder with the rear end cover and simplifying the separate support and other components in the traditional structure, this motor achieves significant optimization in structure. This not only reduces manufacturing costs and installation space requirements, but also improves the maintenance convenience and overall performance of the motor.

[0031] As a preferred embodiment of the above-mentioned embodiment, as shown in Figure 2 The encoder rear cover 10 is fixedly connected with the rear end cover 3, and the encoder circuit board positioning circular groove support frame and the PCB board are entirely covered by the encoder rear cover 10.

[0032] Specifically, by fixedly connecting the encoder rear cover 10 with the rear end cover 3, a closed protective space is formed, which entirely covers the encoder circuit board positioning circular groove support frame and the PCB board. This effectively prevents dust, moisture and other external pollutants from entering the encoder area, thereby prolonging the service life of the encoder and the PCB board and improving the overall reliability of the motor. The encoder rear cover 10 not only provides additional support, but also enhances the structural stability of the rear end cover 3 and the components such as the encoder and the adapter plate installed thereon. This helps to reduce looseness or damage caused by vibration or impact, ensuring stable operation of the motor in harsh working environments. At the same time, since a closed protective space is formed, the difficulty of later maintenance is also reduced. When the encoder needs to be repaired or replaced, only the encoder rear cover 10 needs to be disassembled, without the need to disassemble the entire motor.

[0033] As a preferred embodiment of the above, such as Figure 2 As shown, the magnet is a segmented magnet, with several segments of the magnet distributed alternately along the axial direction of the rotor core on the circumference of the rotor core.

[0034] As a preferred embodiment of the above, such as Figure 3 As shown, the segmented magnet includes a first segment magnet 7, a second segment magnet 8, and a third segment magnet 9, and the first segment magnet 7, the second segment magnet 8, and the third segment magnet 9 are distributed in a staggered manner on the outer periphery of the rotor core.

[0035] Specifically, through segmented design, the magnets can be staggered, which helps to reduce cogging torque, reduce motor torque fluctuation, improve the stability of motor operating speed, reduce the thermal effect of the magnetic field, reduce the heat loss of the magnets, and extend service life. It can also improve magnetic force transmission efficiency and reduce eddy current losses in the rotor core, thereby improving the efficiency and performance of the motor.

[0036] As a preferred embodiment of the above, such as Figure 1 As shown, the angle between the I-section magnet 7, the II-section magnet 8, and the III-section magnet 9 in the circumferential direction is 2.5°.

[0037] Specifically, by offsetting the magnets at a certain angle in the circumferential direction, cogging torque can be effectively reduced. This torque is generated by the interaction between the magnetic poles and the stator teeth and slots. The choice of offset angle is based on the number of poles and slots of the motor, as well as the desired reduction in torque ripple. A 2.5° offset angle is the result of precise calculation and optimization, aiming to achieve the best torque ripple reduction effect.

[0038] As a preferred embodiment of the above, such as Figure 1 As shown, a rear shaft is also provided that passes through the rear end cover 3, and the distance by which the rear shaft passes through the rear end cover 3 is less than the height of the side wall of the encoder bracket; the magnetic bead sleeve is glued to the tail end of the rotating shaft of the rotor assembly 1; the encoder magnetic bead is glued inside the magnetic bead sleeve.

[0039] Specifically, the distance the rear shaft extends beyond the rear end cover is less than the height of the encoder bracket's side wall. This ensures the encoder bracket can be securely mounted on the rear end cover while avoiding direct interference between the rear shaft and the encoder bracket. By using a magnetic bead sleeve to fix the encoder magnetic beads, it is ensured that the encoder magnetic beads are firmly fixed to the rotating shaft and rotate with it. This helps improve the encoder's detection accuracy and stability.

[0040] As a preferred embodiment of the above, such as Figure 1 As shown, an encoder circuit board is also provided and mounted on the encoder circuit board positioning groove support frame on the front side of the rear cover 3.

[0041] Specifically, by positioning the encoder circuit board in the circular groove support frame, the encoder circuit board can be securely installed on the rear end cover, avoiding loosening or displacement problems caused by vibration or impact during motor operation. The design of the positioning circular groove ensures that the encoder circuit board can be accurately and quickly installed on the support frame, improving installation efficiency and accuracy. Installing the encoder circuit board on the front face of the rear end cover not only saves space but also makes the overall structure of the motor more compact and aesthetically pleasing. At the same time, this layout also facilitates maintenance and repair of the encoder circuit board.

[0042] As a preferred embodiment of the above, as shown in Figure 1 A motor three-phase power line adapter circuit board fixing support column is also provided on the front face of the rear end cover 3.

[0043] Specifically, by fixing the adapter plate on the support column, modular and integrated connection of the internal and external circuits of the motor is achieved. This design not only simplifies the structure and assembly process of the motor, but also improves the reliability and maintainability of the motor, ensuring that the adapter plate can be securely installed on the rear end cover, avoiding loosening or displacement problems caused by vibration or impact during motor operation, which helps to reduce electrical failures and improve the overall performance of the motor.

[0044] As a preferred embodiment of the above, as shown in Figure 1 The power lead passes through the waist-shaped groove of the rear end cover 3 and is welded on the adapter plate 12.

[0045] Specifically, the design of the waist-shaped groove can ensure that the lead does not receive excessive resistance when passing out, while also maintaining a certain flexibility to adapt to different directional lead requirements.

[0046] As a preferred embodiment of the above, as shown in Figure 1 The rear end cover 3 adopts a sealing groove plus O-ring 6 sealing form.

[0047] Specifically, the structure of the rear end cover 3 adopting a sealing groove plus O-ring 6 sealing form is used to further increase the overall sealing capacity.

[0048] The basic principles, main features and advantages of the present utility model are shown and described above. It should be understood by those skilled in the art that the present utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements can be made to the present utility model, and these changes and improvements all fall within the scope of the claimed present utility model. The scope of protection of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated encoder motor with a combined rear cover for use in the logistics industry, characterized in that: It includes a stator core (4), a front end cover (2) installed at the front end of the stator core (4), a rear end cover (3) installed at the rear end of the stator core (4), and a rotor assembly (1) installed inside the stator core (4), wherein the two ends of the rotor assembly (1) are respectively mounted on the front end cover (2) and the rear end cover (3) by bearings; It also includes rotor core, magnets, magnet sleeves, magnetic bead sleeves, and encoder magnetic beads; The stator core (4) is installed on the outer periphery of the rotor assembly (1). The rotor core is pressed into the shaft of the rotor assembly (1). The magnet is bonded to the rotor core. The magnet works in conjunction with the stator core (4). The front of the rear cover (3) is provided with a waist-shaped groove for wire outlet, a circular groove support frame for encoder circuit board positioning, and a fixed support column for motor three-phase power line adapter circuit board. The encoder circuit board positioning groove support frame has an encoder circuit board positioning surface on the front, and the rear end cover (3) has a bearing positioning surface on the back. The encoder circuit board positioning groove support frame and the motor three-phase power line adapter circuit board fixing support column both have mounting screw holes at the top.

2. The integrated encoder motor with a rear cover for use in the logistics industry according to claim 1, characterized in that, It also includes an encoder rear cover (10), which is fixedly connected to the rear end cover (3). The encoder rear cover (10) covers the encoder circuit board positioning groove support frame and PCB board as a whole.

3. The integrated encoder motor with a back cover for the logistics industry according to claim 2, characterized in that, The magnet is a segmented magnet, with several segments of the magnet being staggered along the axial direction of the rotor core on the circumference of the rotor core.

4. The integrated encoder motor with a rear cover for use in the logistics industry according to claim 3, characterized in that, The segmented magnets include a first-section magnet (7), a second-section magnet (8), and a third-section magnet (9), and the first-section magnet (7), the second-section magnet (8), and the third-section magnet (9) are distributed in a staggered manner on the outer periphery of the rotor core.

5. The integrated encoder motor with a rear cover for use in the logistics industry according to claim 4, characterized in that, The I-section magnet (7), the II-section magnet (8), and the III-section magnet (9) are offset by an angle of 2.5° in the circumferential direction.

6. The integrated encoder motor with a back cover for the logistics industry according to claim 1, characterized in that, It is also provided that the rear shaft passes through the rear end cover (3), and the distance by which the rear shaft passes through the rear end cover (3) is less than the height of the side wall of the encoder bracket; the magnetic bead sleeve is glued to the tail end of the rotating shaft of the rotor assembly (1); the encoder magnetic bead is glued inside the magnetic bead sleeve.

7. The integrated encoder motor with a rear cover for use in the logistics industry according to claim 1, characterized in that, An encoder circuit board is also provided and installed on the encoder circuit board positioning groove support frame on the front side of the rear cover (3).

8. The integrated encoder motor with a rear cover for use in the logistics industry according to claim 1, characterized in that, It is also equipped with an adapter plate (12) fixed to the motor three-phase power line adapter circuit board fixed support column on the front of the rear end cover (3).

9. The integrated encoder motor with a rear cover for use in the logistics industry according to claim 8, characterized in that, It is also provided that power leads pass through the waist-shaped groove of the rear cover (3) and are welded to the adapter plate (12).

10. The integrated encoder motor with a rear cover for use in the logistics industry according to claim 1, characterized in that, The rear cover (3) is sealed with a sealing groove and an O-ring (6).

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