Bidirectional bearing press-fitting device for motor rotor

Abstract

The utility model relates to a motor rotor bidirectional bearing press-fitting device, which belongs to the technical field of motor manufacturing and comprises a processing box, a workbench fixedly mounted on the inner wall of the processing box, a fixing seat fixedly mounted on the top of the workbench, a rotor placing groove formed inside the fixing seat, and positioning pieces fixedly mounted at two ends of the inner wall of the rotor placing groove. And a bearing body is clamped in the rotor placement groove. The bearing press-fitting device has the advantages that the piston rod of the hydraulic cylinder extends to drive the pressing head to move downwards, then the pressing head can be used for carrying out press-fitting operation on a bearing body, the positioning piece and the positioning groove are used in cooperation, the important limiting effect can be achieved, the bearing body is prevented from rotating in the press-fitting process, and the bearing press-fitting device is suitable for press-fitting operation of a bearing. And the structure is designed in a semi-automatic mode, so that the press-fitting efficiency of the workbench can be improved, and the manual operation space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor manufacturing technical field especially relates to a motor rotor bidirectional bearing press -fitting device. BACKGROUND

[0002] The motor rotor bidirectional bearing is a kind of bearing that can bear load from two directions simultaneously. It is usually composed of two one-way bearings, each bearing has opposite load direction, but the total load direction is the same, so it can bear bidirectional load simultaneously. This design makes the bidirectional bearing can keep stable operation under complex working conditions, improves the reliability and service life of the equipment. The motor rotor bidirectional bearing needs to use press -fitting device in the production process.

[0003] Through retrieval, China patent discloses a kind of motor rotor bidirectional bearing press -fitting equipment (authorized announcement No.CN209267401U), including upper die assembly and lower die assembly, the upper die assembly includes upper base, upper ejector rod and O-ring, the upper base is fixed on the first work platform that can be moved down, the upper ejector rod top is conical, the O-ring is sleeved on the upper ejector rod, the lower die assembly includes support seat assembly, lower base and lower ejector rod, the lower ejector rod is fixed on the lower base, the lower base is equipped with second stepped hole, the lower ejector rod bottom is conical, the lower ejector rod and upper ejector rod coaxial, the support seat assembly includes support plate and a plurality of support shafts with first spring, the support shaft is fixed on the lower base, the support plate can be moved up and down on support shaft, the patent technology can accurately position motor rotor shaft and bearing, and accurately press -fitting;And bidirectional bearing is simultaneously press -fitting, simplifies process, improves production efficiency.

[0004] But the above-mentioned device still has some shortcomings in actual use, more obvious is that the bearing press -fitting operation of the both ends of existing motor rotor, usually adopts manual mode and then carries out press -fitting, and manual press -fitting efficiency is lower, time -consuming and labor -intensive. UTILITY MODEL CONTENTS

[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a kind of motor rotor bidirectional bearing press -fitting device.

[0006] The technical scheme of the utility model is as follows: a kind of motor rotor bidirectional bearing press -fitting device, including processing box, the inner wall of the processing box is fixedly installed with workbench, the top of the workbench is fixedly installed with fixed seat, the inside of the fixed seat is equipped with rotor placing groove, the both ends of the inner wall of the rotor placing groove are fixedly installed with positioning piece, the inside of the rotor placing groove is clamped with bearing body, the both ends of the outer side of the bearing body are equipped with the positioning slot of positioning piece cooperation, the top of the inner wall of the processing box is fixedly installed with hydraulic cylinder, the piston rod of the hydraulic cylinder is fixedly connected with pressure head.

[0007] By adopting the technical scheme, the piston rod of the hydraulic cylinder is elongated, the pressure head is driven to move downward, the bearing body is pressed and mounted by the pressure head, and the structure is semi-automatically designed, so that the pressing and mounting efficiency of the workbench is improved.

[0008] As a preferred embodiment, the workbench is internally provided with a transmission groove, the transmission groove is internally provided with a lifting assembly, the lifting assembly comprises a lifting plate slidingly connected in the rotor placing groove, the bottom of the lifting plate is fixedly connected with a lifting rod, and the bottom of the lifting rod is rotatably provided with a transmission wheel.

[0009] By adopting the technical scheme, the transmission wheel is moved, the lifting rod is driven to move upward, the height of the lifting plate is lifted, and the bearing body in the rotor placing groove is pushed out by the lifting plate.

[0010] As a preferred embodiment, the lifting assembly further comprises a cylinder fixedly installed on the inner wall of the transmission groove, a fixing piece is fixedly connected to the piston rod of the cylinder, and the side close to the transmission wheel of the fixing piece is in abutting contact.

[0011] By adopting the technical scheme, the piston rod of the cylinder is extended or retracted, the fixing piece is driven to move, and the transmission wheel is abutted.

[0012] As a preferred embodiment, the transmission groove is internally provided with a limiting assembly, the limiting assembly comprises a limiting groove opened in the transmission groove and located below the fixing piece.

[0013] By adopting the technical scheme, the transmission groove is provided, the movement of the fixing piece is stable.

[0014] As a preferred embodiment, the limiting groove is internally slidingly connected with a limiting block, the limiting block is fixedly connected with the fixing piece, and the lifting plate is internally provided with a matching groove matched with the limiting block.

[0015] By adopting the technical scheme, the limiting groove and the limiting block are matched, the fixing piece is limited.

[0016] As a preferred embodiment, the bottom of the lifting rod penetrates the inside of the fixing seat, and the outer side of the fixing piece is provided with a slope matched with the transmission wheel.

[0017] By adopting the technical scheme, the slope is provided to lift the lifting rod.

[0018] As a preferred implementation form, the inner wall of the rotor placing groove and below the lifting plate is fixedly installed with a reinforcing plate, and one end of the lifting rod penetrates the inside of the lifting rod.

[0019] By adopting the above technical scheme, the reinforcing plate can reduce the pressing impact force from above and avoid damage to the inner wall of the rotor placing groove caused by long-term pressing.

[0020] As a preferred implementation form, the outer side of the processing box is fixedly installed with a controller, the four sides of the processing box are provided with visible windows, and the outer side of the processing box is provided with a hinged door.

[0021] By adopting the above technical scheme, the hinged door can put the assembly to be pressed into the processing box.

[0022] Compared with the prior art, the utility model has the advantages and positive effects that,

[0023] 1. In the utility model, when the motor rotor bidirectional bearing needs to be pressed, one of the bearing assemblies is placed in the rotor placing groove, and the other bearing assembly is clamped with it. At this time, the hydraulic cylinder can be controlled to start, and the extension of the piston rod of the hydraulic cylinder can drive the pressure head to move downward, thereby the pressure head can be used for pressing the bearing body, and the cooperation of the positioning piece and the positioning groove can play an important limiting role, avoiding the rotation of the bearing body during pressing, thereby improving the pressing precision of the bearing body, and the above structure is a semi-automatic design, which can improve the pressing efficiency of the workbench and reduce the manual operation space.

[0024] 2. In the utility model, the piston rod of the air cylinder extends to drive the fixing piece to move and abut against the outer wall of the transmission wheel, thereby pushing the lifting rod to move upward, and the height of the lifting plate can be lifted, so that the lifting plate can push the bearing body in the rotor placing groove out, and the staff can take out the bearing body from the rotor placing groove. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model provides a kind of overall perspective view of motor rotor bidirectional bearing pressing device;

[0026] Figure 2 The utility model provides a kind of sectional view of motor rotor bidirectional bearing pressing device;

[0027] Figure 3 The utility model provides a kind of internal schematic view of workbench and fixed seat of motor rotor bidirectional bearing pressing device;

[0028] Figure 4The utility model provides a partial explosion map of motor rotor bidirectional bearing press fitting device.

[0029] Illustration: 1, processing box;2, controller;3, worktable;4, fixed base;5, hydraulic cylinder;6, pressure head;7, rotor placing groove;8, positioning piece;9, lifting plate;10, transmission groove;11, fixed part;12, air cylinder;13, bearing body;14, positioning groove;15, lifting rod;16, limiting groove;17, limiting block;18, transmission wheel. DETAILED DESCRIPTION

[0030] 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, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0031] Reference Figures 1-4 A motor rotor bidirectional bearing press fitting device, including processing box 1, the inner wall of processing box 1 is fixedly installed with worktable 3, the top of worktable 3 is fixedly installed with fixed base 4, the inside of fixed base 4 is provided with rotor placing groove 7, the both ends of the inner wall of rotor placing groove 7 are fixedly installed with positioning piece 8, the inside of rotor placing groove 7 is clamped with bearing body 13, the both ends of the outer side of bearing body 13 are provided with positioning groove 14 used in cooperation with positioning piece 8, the top of the inner wall of processing box 1 is fixedly installed with hydraulic cylinder 5, the piston rod of hydraulic cylinder 5 is fixedly connected with pressure head 6, when needing to press fit motor rotor bidirectional bearing, one of bearing assemblies can be placed in rotor placing groove 7, and another bearing assembly is clamped with it, at this time, hydraulic cylinder 5 can be controlled to start, the extension of the piston rod of hydraulic cylinder 5 can drive pressure head 6 to move downward, and then bearing body 13 can be press fitted by pressure head 6, and the cooperation of positioning piece 8 and positioning groove 14 can play an important limiting role, avoid the rotation of bearing body 13 in the press fitting process, and then the press fitting precision of bearing body 13 can be improved, and the above structure is semi-automated design, which can improve the press fitting efficiency of worktable 3 and reduce the manual operation space.

[0032] Specifically, the inside of the workbench 3 is provided with a transmission groove 10, the inside of the transmission groove 10 is provided with a lifting assembly, the lifting assembly comprises a lifting plate 9 slidingly connected in the rotor placing groove 7, the bottom of the lifting plate 9 is fixedly connected with a lifting rod 15, the bottom of the lifting rod 15 is rotatably installed with a transmission wheel 18, when the bearing body 13 is finished, the bearing body 13 will be fitted in the rotor placing groove 7, it is difficult to take out, the transmission wheel 18 can be moved to drive the lifting rod 15 to move upward, thereby the height of the lifting plate 9 can be lifted, so that the bearing body 13 in the rotor placing groove 7 can be pushed out by the lifting plate 9, so as to improve the production efficiency of the bearing body 13, the lifting assembly further comprises a cylinder 12 fixedly installed on the inner wall of the transmission groove 10, the piston rod of the cylinder 12 is fixedly connected with a fixing piece 11, the side of the fixing piece 11 close to the transmission wheel 18 is in abutting state, the fixing piece 11 can be moved by the extension and retraction of the piston rod of the cylinder 12, thereby the transmission wheel 18 can be abutted, the inside of the transmission groove 10 is provided with a limiting assembly, the limiting assembly comprises a limiting groove 16 provided in the inside of the transmission groove 10 and located below the fixing piece 11, a limiting block 17 is slidingly connected in the inside of the limiting groove 16, the fixing piece 11 can be limited by the cooperation of the limiting groove 16 and the limiting block 17, so that the fixing piece 11 moves more stably, so as to ensure the normal use of the lifting plate 9, the limiting block 17 is fixedly connected with the fixing piece 11, the inside of the lifting plate 9 is provided with a matching groove matched with the positioning piece 8.

[0033] Specifically, the bottom of the lifting rod 15 penetrates the inside of the fixed seat 4, the outer side of the fixing piece 11 is provided with a slope matched with the transmission wheel 18, the lifting rod 15 is lifted by the slope, the inner wall of the rotor placing groove 7 and located below the lifting plate 9 is fixedly installed with a reinforcing plate, the reinforcing plate is provided to reduce the impact force from the upper part, avoid the damage of the inner wall of the rotor placing groove 7 caused by long-term pressing, so as to improve the service life of the fixed seat 4, one end of the lifting rod 15 penetrates the inside of the lifting rod 15, the outer side of the processing box 1 is fixedly installed with a controller 2, the use of the controller 2 can control the start and stop of the electrical equipment in the processing box 1, the four sides of the processing box 1 are provided with a viewing window, the outer side of the processing box 1 is provided with a hinged door, the assembly to be pressed can be put into the processing box 1 through the hinged door.

[0034] Working principle: first, the staff can open the door, and put the need to be pressed into the processing box 1 bearing assembly, can be placed in one of the bearing assembly rotor placement slot 7, and the other bearing assembly with its card, at this time, through the controller 2 control hydraulic cylinder 5 start, through the hydraulic cylinder 5 piston rod elongation, can use the pressure head 6 bearing body 13 for pressing operation, and the positioning piece 8 and positioning groove 14 cooperation, can play an important limiting effect, avoid bearing body 13 in the process of pressing occurs rotating phenomenon, so as to improve the pressing efficiency of the workbench 3, and when the bearing body 13 is pressed, the bearing body 13 is pressed into the rotor placement slot 7, difficult to take out, at this time, can control the cylinder 12 start, can drive the fixed part 11 moves, and with the transmission wheel 18 outer wall is in contact, so as to push the lifting rod 15 upward, in turn, can lift the lifting plate 9 height, so as to use the lifting plate 9 bearing body 13 in the rotor placement slot 7 push out, in order to staff from the rotor placement slot 7 bearing body 13 take out.

[0035] In the description of the present application, it should be pointed out that, unless otherwise explicitly provided and limited, the terms "installation", "provided with", "connection" and the like should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integral connection;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication between two elements, for those skilled in the art, according to the specific situation, the specific meaning of the above terms in the present application can be understood.

[0036] The above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A bidirectional bearing press device for motor rotor, comprising a processing box (1), characterized in that: The inner wall of the processing box (1) is fixedly installed with a workbench (3), the top of the workbench (3) is fixedly installed with a fixed seat (4), the inside of the fixed seat (4) is provided with a rotor placing groove (7), and both ends of the inner wall of the rotor placing groove (7) are fixedly installed with positioning pieces (8). The inside of the rotor placing groove (7) is clamped with a bearing body (13), both ends of the outer side of the bearing body (13) are provided with positioning grooves (14) matched with the positioning pieces (8), the top of the inner wall of the processing box (1) is fixedly installed with a hydraulic cylinder (5), and the piston rod of the hydraulic cylinder (5) is fixedly connected with a pressure head (6).

2. The electric motor rotor two-way bearing press fitting device according to claim 1, characterized in that: The inside of the workbench (3) is provided with a transmission groove (10), the transmission groove (10) is provided with a lifting assembly, the lifting assembly comprises a lifting plate (9) slidably connected in the rotor placing groove (7), the bottom of the lifting plate (9) is fixedly connected with a lifting rod (15), and the bottom of the lifting rod (15) is rotatably installed with a transmission wheel (18).

3. The motor rotor bidirectional bearing press device of claim 2, wherein: The lifting assembly further comprises a gas cylinder (12) fixedly installed on the inner wall of the transmission groove (10), the piston rod of the gas cylinder (12) is fixedly connected with a fixing piece (11), and the side close to the transmission wheel (18) of the fixing piece (11) is in abutting contact.

4. The electric motor rotor two-direction bearing press-fitting device according to claim 3, characterized in that: The inside of the transmission groove (10) is provided with a limiting assembly, and the limiting assembly comprises a limiting groove (16) provided in the inside of the transmission groove (10) and located below the fixing piece (11).

5. The electric motor rotor two-direction bearing press-fitting device according to claim 4, characterized in that: The inside of the limiting groove (16) is slidably connected with a limiting block (17), the limiting block (17) is fixedly connected with the fixing piece (11), and the inside of the lifting plate (9) is provided with a matching groove matched with the positioning piece (8).

6. The electric motor rotor two-direction bearing press-fitting device according to claim 3, characterized in that: The bottom of the lifting rod (15) penetrates the inside of the fixed seat (4), and the outer side of the fixing piece (11) is provided with an inclined surface matched with the transmission wheel (18).

7. The motor rotor two-direction bearing press-fitting device according to claim 2, characterized in that: The inner wall of the rotor placing groove (7) and below the lifting plate (9) is fixedly installed with a reinforcing plate, and one end of the lifting rod (15) penetrates the inside of the lifting rod (15).

8. The motor rotor two-direction bearing press-fitting device according to claim 1, characterized in that: The outer side of the processing box (1) is fixedly installed with a controller (2), the periphery of the processing box (1) is provided with a visual window, and the outer side of the processing box (1) is provided with an opening and closing door.

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