Device for pressing double motor rotors into box

Abstract

The invention discloses a dual-motor rotor press-fitting boxing device which comprises a press-fitting support, a box body tray is arranged on the press-fitting support, a supporting support used for supporting the box body tray is arranged at the bottom of the box body tray, an ejector rod penetrating hole is formed in the box body tray in a penetrating mode, and a rotor lower supporting device is arranged below the box body tray. A lower ejector rod extends upwards from the rotor lower supporting device, a box body pressing device capable of pressing a motor box body to be installed on the box body tray is installed on the press-fitting support, a rotor pressing plate is arranged above the box body tray, and a rotor press-fitting driving device capable of driving the rotor pressing plate to move up and down is installed on the press-fitting support. The rotor pressing plate is provided with an upper ejector rod which has the same center line with a rotor mounting hole in the corresponding motor box body to be mounted, and when the lower ejector rod extends upwards, the lower ejector rod can penetrate through the ejector rod penetrating hole and is matched with the upper ejector rod to clamp the two ends of a motor shaft of a motor rotor arranged above the box body tray; and the rotor is fed into a rotor mounting hole of the motor box body to be mounted.

Description

Technical Field

[0001] The present invention relates to the technical field of motor assembly, and in particular to a device for pressing and assembling dual-motor rotors into a box. Background Art

[0002] Traditional electric motors typically consist of only one stator and one rotor, and whether they are DC, synchronous, or asynchronous, they only have one mechanical port. In recent years, the concept of a dual-rotor motor has been proposed. This motor features two mechanical axes, enabling independent energy transfer between them. This new type of motor significantly reduces the size and weight of the equipment, improves operating efficiency, and effectively meets energy conservation and speed regulation requirements. Its superior operating performance makes it promising for application in many fields.

[0003] A common dual-rotor motor has two motor rotors arranged in parallel on a housing. This design is generally intended to increase the power density of the motor, reduce its size, and improve its performance in specific applications. However, during the assembly process of the two rotors of this dual-rotor motor, ensuring that the rotors are aligned when inserted into the housing is a rather difficult task. Since the rotor is magnetic, the strong magnetic force will produce a magnetic attraction effect during the assembly process, causing the rotor to shift relative to the stator. The rotor may not be able to maintain its original axial position, thus affecting the alignment of the stator and rotor, and may even cause the rotor to contact the stator, resulting in friction, causing abnormal wear, noise, and reduced efficiency in the subsequent operation of the motor. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a dual-motor rotor press-fitting box device that can reduce the mutual influence of the dual-motor rotors during the assembly process and improve the assembly quality and assembly accuracy.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A dual-motor rotor press-fitting box device comprises a press-fitting bracket, a box tray is provided on the press-fitting bracket, the top surface of the box tray is used to vertically place the motor box to be installed, the bottom of the box tray is provided with a supporting bracket for supporting it and fixed on the press-fitting bracket, the box tray is provided with a push rod through-hole at a position corresponding to the rotor mounting hole on the motor box to be installed, and a rotor lower support device mounted on the press-fitting bracket is provided at a position corresponding to the rotor mounting hole on the motor box to be installed on the box tray below the box tray, the rotor lower support device extends upward with a lower push rod which is coaxial with the rotor mounting hole on the motor box to be installed and can be telescoped up and down, and the press-fitting bracket is provided with a box that can press the motor box to be installed on the box tray tightly against the box tray. The motor is pressed down and the rotor is moved up and down by the push rod, and the push rod is pressed down and the motor is moved up and down by the push rod.

[0006] The motor case is first placed vertically on the case tray, the position of the motor case is adjusted so that the rotor mounting hole thereon is aligned with the upper and lower push rods, and then the case pressing device is controlled to press the motor case onto the case tray; then a gripping device specifically for gripping the motor rotor is used to grip the motor rotor and place it above the motor case, and the motor rotor is adjusted to be aligned with the upper and lower push rods; the rotor lower support device is started, the lower push rod extends upward and abuts against the lower end of the rotor motor shaft, and then the rotor pressing drive device is controlled to move the rotor pressure plate downward, thereby abutting the upper push rod thereon against the upper end of the rotor motor shaft, and the motor rotor is firmly clamped by the upper and lower push rods; the grip of the motor rotor is removed, and the rotor pressure plate and the lower push rod are controlled to move downward and retract downward synchronously, so that the upper push rod and the lower push rod send the motor rotor downward into the rotor mounting hole of the motor case to be installed while keeping the motor rotor clamped. Although there is the influence of the magnetic field of the adjacent rotor, by clamping and positioning the rotor motor shaft, it is possible to ensure that the concentricity with the stator in the box is always maintained during the process of the motor rotor entering the box, avoiding the magnetic field interference of the adjacent stator and rotor, and improving the assembly quality and assembly accuracy.

[0007] The top of the support frame is installed in the state that the support column is located at the top of the support column, and the bottom of the support column is installed in the state that the support column is located at the top of the support column. The rotor case can be pre-positioned and fixed on the case pallet at other workstations. When the rotor needs to be installed, the case pallet only needs to be placed on the support platform, and the positioning pins on the top surface of the support platform are used to complete the positioning of the case pallet, and then the positioning of the motor case on it is completed, which can improve the efficiency of motor rotor assembly.

[0008] As an optimization, the support device includes at least one jacking device fixed on the press-fit bracket, a jacking rod that can be extended and retracted in the vertical direction extends from the top of the jacking device, the top of the jacking rod is fixedly connected to the bottom of the support platform, and the support device also includes a plurality of jacking guide devices, the jacking guide device includes a guide cylinder fixed on the press-fit bracket and arranged vertically, the mouth of the guide cylinder is set upward and a guide rod that can slide with the guide cylinder in the vertical direction is inserted into the interior, and the upper end of the guide rod is fixedly connected to the bottom of the support platform. When the box pallet is not placed, the support platform can be controlled to descend by the jacking device, so that a larger space can be reserved to facilitate the box pallet to enter the area to be assembled.

[0009] As an optimization, the top surface of the housing tray is provided with at least three positioning bosses for supporting the motor housing to be installed, and the tops of at least two of the positioning bosses are provided with positioning protrusions for inserting into positioning holes on the motor housing to be installed to position the motor housing to be installed, thereby enabling rapid positioning of the motor housing.

[0010] As an optimization, the box pressing device includes a box pressing plate located above the box tray, the projection of the box pressing plate in the vertical direction is located outside the projection of the upper push rod in the vertical direction, one end of the box pressing plate is slidably connected to the press-fitting bracket and can slide in the vertical direction, the press-fitting bracket is fixedly connected to a pressing drive device, and a pressing drive rod that can be extended and retracted in the vertical direction extends from the pressing drive device, and the pressing drive rod is fixedly connected to the box pressing plate. The up and down movement of the box pressing plate is controlled by the pressing drive device, while avoiding interference with the upper push rod.

[0011] As an optimization, a plurality of cover positioning rods are fixedly connected to the bottom surface of the rotor pressure plate, which are arranged vertically downward and are used to be inserted into the positioning holes on the cover to be installed to position the cover to be installed. A push rod driving device is installed on the rotor pressure plate. The driving end of the push rod driving device is connected to the upper push rod and can drive the upper push rod to extend and retract downward in the vertical direction. When the push rod driving device drives the upper push rod to retract, the horizontal height of the lower end of the upper push rod is higher than the horizontal height of the lower end of the cover positioning rod. When assembling the motor rotor, usually one end of the rotor motor shaft is assembled to the cover first, so that after the electronic rotor is placed in the box, the cover is also docked on the box body. Therefore, the upper push rod is controlled to retract first to avoid interference, and the rotor pressure plate is controlled to descend so that the cover positioning rod is inserted into the positioning hole on the cover to first install and position the cover, and then the upper push rod is controlled to extend downward and press against the upper end of the rotor motor shaft to clamp it.

[0012] As an optimization, the rotor pressure plate is slidably connected to the press-fit bracket and can slide in a vertical direction.

[0013] As an optimization, the rotor pressing drive device includes a pressure plate lifting drive device and a pressure plate extrusion drive device, the pressure plate lifting drive device is fixedly connected to the pressing bracket and has a lifting drive rod that can be extended and retracted in the vertical direction extended therefrom, the lifting drive rod is fixedly connected to the rotor pressure plate, the pressure plate extrusion drive device includes a slide seat arranged above the rotor pressure plate, the slide seat is slidably connected to the pressing bracket and can move in the horizontal direction, and the pressing bracket is installed with a translation drive device that can drive the slide to move. The slide is fixedly connected to the pushing drive device, and the bottom of the pushing drive device is provided with a pushing drive rod that can be extended and retracted in the vertical direction. The lower end of the pushing drive rod is fixedly connected to a pushing block. When the pushing drive rod is extended downward, the pushing block can abut against the top surface of the rotor pressure plate and push the rotor pressure plate to move downward, thereby sending the motor rotor to be installed into the rotor mounting hole of the motor case to be installed. In order to improve the assembly efficiency, multiple sets of box pallets and corresponding upper and lower push rod matching devices are set on the press-fitting bracket, so that the rotor pressure plate can be supported by the pressure plate lifting drive device. When the motor rotor needs to be clamped, the slide is translated accordingly and the push drive device is used to extend the push drive rod downward to abut the top surface of the rotor pressure plate, and the lifting drive rod is extended downward at the same time to achieve the extrusion of the rotor pressure plate, thereby completing the clamping of the rotor motor shaft and the box-entry operation.

[0014] As an optimization, the lower end of the upper ejector rod and the upper end of the lower ejector rod are each protruded outwardly along their centerline direction to form a tapered tip. When the upper ejector rod and the lower ejector rod clamp the rotor motor shaft, the tapered tip can be inserted into the inner hole of the rotor motor shaft end, thereby achieving positioning of the rotor motor shaft.

[0015] Compared with the existing technology, the present invention has the following beneficial effects: the present invention solves the problem of difficulty in centering the dual-motor rotors during assembly, avoids the rotors from being offset due to the magnetic attraction effect, ensures that the rotors can be accurately centered when entering the box, thereby avoiding contact between the rotor and the stator, and reducing the risks of abnormal wear, noise and reduced efficiency.

[0016] ‌ Illustrations Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the support structure of the box pallet in the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] like Figure 1 and Figure 2 As shown, the dual-motor rotor press-fitting box device in this specific embodiment includes a press-fitting bracket 1, a box tray 2 is provided on the press-fitting bracket 1, the top surface of the box tray 2 is used to vertically place the motor box to be installed, and the bottom of the box tray 2 is provided with a supporting bracket for supporting it and fixed on the press-fitting bracket 1, and the box tray 2 is provided with a push rod through-hole at the position corresponding to the rotor mounting hole on the motor box to be installed. A rotor lower supporting device installed on the press-fitting bracket 1 is provided at the position corresponding to the rotor mounting hole on the motor box to be installed on the box tray below the box tray 2. The rotor lower supporting device extends upward with a lower push rod 3 which is coaxial with the rotor mounting hole on the motor box to be installed and can be retracted up and down. The press-fitting bracket 1 is equipped with a When the upper push rod 5 and the lower push rod 3 are used to clamp the motor shaft to be installed, the rotor pressure plate 4 and the lower push rod 3 can move downward and retract synchronously to send the motor rotor to be installed into the rotor mounting hole of the motor case to be installed.

[0019] In this specific embodiment, the support bracket includes a support platform 6 and a support device located below the support platform 6 and supporting the support platform. The rotor lower support device is located below the support platform 6. The support platform 6 is provided with a push rod through hole that allows the lower push rod 3 to pass through. A plurality of vertically arranged positioning pins are fixedly connected to the top surface of the support platform 6. The positioning pins are provided with a support sleeve 7 that can slide with them along their center line direction. The bottom of the support sleeve 7 is on the support platform 6, and the upper end of the positioning pin extends out of the upper end of the support sleeve 7. The bottom of the box pallet 2 is fixedly connected with a support boss corresponding to the position of each support sleeve 7. The bottom of the support boss is recessed with a positioning hole that allows the positioning pin to be inserted and can slide with the positioning pin in the vertical direction. The box pallet 2 is placed on the top of each support sleeve 7 through the support boss and the upper end of the positioning pin is inserted into the corresponding positioning hole.

[0020] In this specific embodiment, the support device includes at least one jacking device 8 fixed on the press-fitting bracket 1, and a jacking rod that can be extended and retracted in the vertical direction extends from the top of the jacking device 8. The top of the jacking rod is fixedly connected to the bottom of the support platform 6. The support device also includes a plurality of jacking guide devices, and the jacking guide device includes a guide cylinder 9 that is fixed on the press-fitting bracket 1 and vertically arranged. The mouth of the guide cylinder 9 is set upward and a guide rod 10 that can slide with the guide cylinder 9 in the vertical direction is inserted into the interior thereof. The upper end of the guide rod 10 is fixedly connected to the bottom of the support platform 6.

[0021] In this specific embodiment, at least three positioning bosses 11 are raised on the top surface of the box tray 2 for supporting the motor box to be installed, and the top protrusions of at least two of the positioning bosses 11 are formed with positioning bosses for inserting into the positioning holes on the motor box to be installed to position the motor box to be installed.

[0022] In this specific embodiment, the box pressing device includes a box pressing plate 12 located above the box pallet 2, and the projection of the box pressing plate 12 in the vertical direction is located outside the projection of the upper push rod 5 in the vertical direction. One end of the box pressing plate 12 is slidably connected to the pressing bracket 1 and can slide in the vertical direction. A pressing drive device 13 is fixedly connected to the pressing bracket 1, and a pressing drive rod that can be extended and retracted in the vertical direction extends from the pressing drive device 13, and the pressing drive rod is fixedly connected to the box pressing plate 12.

[0023] In this specific embodiment, a plurality of box cover positioning rods 14 are fixedly connected to the bottom surface of the rotor pressure plate 4 and are arranged vertically downward and are used to be inserted into the positioning holes on the box cover to be installed to position the box cover to be installed. A push rod driving device 15 is installed on the rotor pressure plate 4. The driving end of the push rod driving device 15 is connected to the upper push rod 5 and can drive the upper push rod 5 to extend and retract downward in the vertical direction. When the push rod driving device 15 drives the upper push rod 5 to retract, the lower end horizontal height of the upper push rod 5 is higher than the lower end horizontal height of the box cover positioning rod 14.

[0024] In this specific embodiment, the rotor pressure plate 4 is slidably connected to the press-fit bracket 1 and can slide in the vertical direction.

[0025] In this specific embodiment, the rotor pressing drive device includes a pressure plate lifting drive device 16 and a pressure plate extrusion drive device. The pressure plate lifting drive device 16 is fixedly connected to the pressing bracket 1 and has a lifting drive rod that can be extended and retracted in the vertical direction extended therefrom. The lifting drive rod is fixedly connected to the rotor pressure plate 4. The pressure plate extrusion drive device includes a slide 17 arranged above the rotor pressure plate 4. The slide 17 is slidably connected to the pressing bracket 1 and can move in the horizontal direction. The pressing bracket 1 is installed with a translation drive device that can drive the slide 17 to move. The slide 17 is fixedly connected to the pushing drive device 18. The bottom of the pushing drive device 18 is provided with a pushing drive rod that can be extended and retracted in the vertical direction. The lower end of the pushing drive rod is fixedly connected to a pushing block. When the pushing drive rod is extended downward, the pushing block can abut against the top surface of the rotor pressure plate 4 and push the rotor pressure plate 4 to move downward, thereby sending the motor rotor to be installed into the rotor mounting hole of the motor case to be installed.

[0026] In this specific embodiment, the lower end of the upper push rod 5 and the upper end of the lower push rod 3 are respectively protruded outward along the center line direction to form a conical top.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the technical solutions. Those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present invention that do not depart from the purpose and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A device for pressing a dual-motor rotor into a box, characterized in that: The bottom of the box tray is provided with a support bracket for supporting it and fixing it on the press-fitting bracket. The box tray is provided with a push rod through-hole at the position corresponding to the rotor mounting hole on the motor box to be installed. A rotor lower support device installed on the press-fitting bracket is provided at the position corresponding to the rotor mounting hole on the motor box to be installed on the box tray below. The rotor lower support device extends upward with a lower push rod which is in the same center line as the rotor mounting hole on the motor box to be installed and can be retracted up and down. The press-fitting bracket is provided with a box pressing device which can press the motor box to be installed on the box tray onto the box tray. A rotor pressure plate is provided above the body tray, and a rotor pressing drive device is installed on the pressing bracket, which is connected to the rotor pressure plate and can drive the rotor pressure plate to move up and down. An upper push rod with the same center line as the rotor mounting hole on the motor case to be installed is installed on the rotor pressure plate corresponding to the rotor mounting hole on the motor case to be installed on the box tray. When the lower push rod is extended upward, the lower push rod can pass through the push rod through the hole and cooperate with the upper push rod to clamp the two ends of the motor shaft of the motor rotor to be installed above the box tray. When the upper push rod and the lower push rod clamp the motor shaft to be installed, the rotor pressure plate and the lower push rod can synchronously move downward and retract downward to send the motor rotor to be installed into the rotor mounting hole of the motor case to be installed.

2. The dual-motor rotor press-fitting device according to claim 1, characterized in that: The support bracket includes a support platform and a support device located below the support platform and supporting the support platform, the rotor lower support device is located below the support platform, and the support platform is provided with a top rod through-hole that allows the lower push rod to pass through, and a plurality of vertically arranged positioning pins are fixedly connected to the top surface of the support platform, and the positioning pins are provided with a support sleeve that can slide with them along the center line direction. The bottom of the support sleeve is placed on the support platform, and the upper end of the positioning pin extends out from the upper end of the support sleeve. The bottom of the box pallet is fixedly connected with a supporting boss corresponding to the position of each support sleeve, and the bottom of the support boss is recessed with a positioning hole that allows the positioning pin to be inserted and can slide with the positioning pin in the vertical direction. The box pallet is placed on the top of each support sleeve through the support boss and the upper end of the positioning pin is inserted into the corresponding positioning hole.

3. The dual-motor rotor press-fitting device according to claim 2, characterized in that: The support device includes at least one jacking device fixed on the press-fitting bracket, a jacking rod that can be extended and retracted in the vertical direction extends from the top of the jacking device, and the top of the jacking rod is fixedly connected to the bottom of the support platform. The support device also includes a plurality of jacking guide devices, the jacking guide device includes a guide cylinder that is fixed to the press-fitting bracket and vertically arranged, the cylinder mouth of the guide cylinder is arranged upward and a guide rod that can slide with the guide cylinder in the vertical direction is inserted into the interior of the guide cylinder, and the upper end of the guide rod is fixedly connected to the bottom of the support platform.

4. The dual-motor rotor press-fitting box device according to claim 1, characterized in that: The top surface of the box tray is provided with at least three positioning bosses for supporting the motor box to be installed, and the top protrusions of at least two positioning bosses are formed with positioning bosses for inserting into the positioning holes on the motor box to be installed to position the motor box to be installed.

5. The dual-motor rotor press-fitting box device according to claim 1, characterized in that: The box pressing device includes a box pressing plate located above the box pallet, the projection of the box pressing plate in the vertical direction is located outside the projection of the upper push rod in the vertical direction, one end of the box pressing plate is slidably connected to the pressing bracket and can slide in the vertical direction, and a pressing drive device is fixedly connected to the pressing bracket, and a pressing drive rod that can be retracted and retracted in the vertical direction extends from the pressing drive device, and the pressing drive rod is fixedly connected to the box pressing plate.

6. The dual-motor rotor press-fitting box device according to claim 1, characterized in that: A plurality of box cover positioning rods are fixedly connected to the bottom surface of the rotor pressure plate, which are arranged vertically downward and are used to be inserted into the positioning holes on the box cover to be installed to position the box cover to be installed. A push rod driving device is installed on the rotor pressure plate, and the driving end of the push rod driving device is connected to the upper push rod and can drive the upper push rod to extend and retract downward in the vertical direction. When the push rod driving device drives the upper push rod to retract, the horizontal height of the lower end of the upper push rod is higher than the horizontal height of the lower end of the box cover positioning rod.

7. The dual-motor rotor press-fitting box device according to claim 1, characterized in that: The rotor pressure plate is slidably connected to the press-fit bracket and can slide in a vertical direction.

8. The dual-motor rotor press-fitting box device according to claim 1, characterized in that: The cam is fixedly provided with a driving mechanism that can move the driving mechanism upwards and downwards, so that the driving mechanism can move upwards and downwards, thereby the driving mechanism can move upwards and downwards, thereby the driving mechanism can move upwards and downwards, thereby the driving mechanism can move upwards and downwards, thereby the driving mechanism can move 9. The dual-motor rotor press-fitting box device according to claim 1, characterized in that: The lower end of the upper push rod and the upper end of the lower push rod are respectively protruded outward along the center line direction to form a conical top.

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