Rotor adjusting mechanism and bearing press fitting device

Abstract

The utility model belongs to the technical field of motor maintenance, and discloses a rotor adjusting mechanism and a bearing press fitting device. The rotor adjusting mechanism comprises a supporting piece, a bearing piece and a lifting piece. The bearing part is provided with a containing groove used for containing the rotor, the bearing part is movably connected to the supporting part, the bearing part can move in the first horizontal direction relative to the supporting part, and the position of the rotor in the first horizontal direction can be adjusted; the lifting piece is fixedly connected with the supporting piece, the lifting piece can drive the supporting piece to move in the vertical direction, then the position of the rotor in the vertical direction is adjusted, and the mounting precision of the rotor and the bearing is improved. The bearing press fitting device comprises a driving mechanism, two bearing pressure heads and the rotor adjusting mechanism, the two bearing pressure heads are distributed on the two sides of the bearing piece in the first horizontal direction, and the driving mechanism is used for driving the two bearing pressure heads to get close to each other so as to press the bearing on the rotor. The bearing press-fitting device improves the press-fitting precision and efficiency of the rotor and the bearing.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor overhauling technical field especially relates to a rotor adjustment mechanism and bearing press fitting device. BACKGROUND

[0002] When the ventilation motor of the motor train unit is overhauled, the rotor and bearing press fitting operation needs to be carried out to ensure the installation position of the rotor, bearing and motor cover, improve the coaxiality of the rotor and bearing, reduce the vibration and wear of the rotor and improve the service life of the rotor.

[0003] The bearing press fitting device is used for the rotor and bearing press fitting operation, the rotor is first placed on the rotor adjustment mechanism, the position and posture of the rotor are adjusted, and the bearing press fitting device is convenient for press fitting the bearing on the rotor. The existing rotor adjustment mechanism has vertical and horizontal two kinds, the vertical rotor adjustment mechanism can support and adjust the rotor in the vertical direction, but the bearing press fitting device can only press fit the bearing on one end of the rotor, and the press fitting efficiency is low. The horizontal rotor adjustment mechanism can support and adjust the rotor in the horizontal direction, so that the bearing press fitting device can simultaneously press fit the bearing on both ends of the rotor, but in the press fitting process, the two bearing pressing heads of the bearing press fitting device do not necessarily abut on the rotor at the same time, which can cause the rotor to be displaced on the rotor adjustment mechanism, affect the press fitting precision and reduce the bearing press fitting efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses a rotor adjustment mechanism and bearing press fitting device to improve the precision and efficiency of rotor and bearing press fitting.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] A rotor adjustment mechanism, comprising:

[0007] A support piece;

[0008] A bearing piece, a containing groove is formed on the bearing piece for placing the rotor, the bearing piece is movably connected to the support piece, and the bearing piece can move along a first horizontal direction relative to the support piece;

[0009] A lifting piece, the lifting piece is fixedly connected to the support piece, and the lifting piece can drive the support piece to move along a vertical direction.

[0010] The above-mentioned rotor adjustment mechanism, wherein the bearing piece and the support piece are slidingly connected, or the bearing piece and the support piece are rollingly connected.

[0011] The above-mentioned rotor adjustment mechanism, wherein one of the bearing piece and the support piece is fixedly provided with a sliding table, and the other is fixedly provided with a sliding groove, and the sliding table and the sliding groove are slidingly connected.

[0012] The rotor adjusting mechanism, wherein the support member has a support surface, the sliding table is arranged on the support surface, two limiting members are arranged on the sliding table along the first horizontal direction, and the bearing member can slide between the two limiting members and abut against the limiting members.

[0013] The rotor adjusting mechanism, wherein the bearing member comprises a bearing plate, and the bearing plate is provided with the sliding groove, or the bearing member comprises a bearing plate and a bearing block connected to the bearing plate, and the bearing block is provided with the sliding groove.

[0014] The rotor adjusting mechanism, wherein at least two sliding tables are arranged along a second horizontal direction perpendicular to the first horizontal direction.

[0015] The rotor adjusting mechanism, wherein the accommodating groove is a U-shaped groove or a V-shaped groove.

[0016] The rotor adjusting mechanism, wherein the lifting member is an electric push rod, a pneumatic cylinder or a hydraulic cylinder.

[0017] The rotor adjusting mechanism, wherein the bottom end of the lifting member and / or the inner wall of the accommodating groove is provided with a buffer member.

[0018] A bearing pressing device, comprising a driving mechanism, two bearing pressing heads and the rotor adjusting mechanism, the two bearing pressing heads are distributed on both sides of the bearing member along the first horizontal direction, and the driving mechanism is used for driving the two bearing pressing heads to move close to each other to press the bearing on the rotor.

[0019] The rotor adjusting mechanism provided by the utility model has the advantages that when in use, the bearing sleeve is arranged on both ends of the rotor, the rotor is placed in the accommodating groove on the bearing member, and the accommodating groove can limit the rolling of the rotor.

[0020] The rotor adjusting mechanism provided by the utility model can adjust the position of the rotor in space and improve the precision of pressing the rotor and the bearing.

[0021] The bearing press-fitting device provided by the utility model, since the rotor adjusting mechanism is adopted, the position of the rotor in the vertical direction is adjusted by the rotor adjusting mechanism during use, the axis of the rotor and the center of the bearing pressing head are at the same height and are aligned along the first horizontal direction, the two bearing pressing heads are close to each other along the first horizontal direction, and then the bearing is press-fitted on the rotor. When one of the bearing pressing heads first abuts against one end of the rotor, the rotor is pushed to move, since the bearing pressing head and the supporting piece are movably connected, the bearing pressing head pushes the rotor to drive the bearing to move together, so that the rotor does not move relative to the bearing, until the other bearing pressing head abuts against the other end of the rotor, and then the bearing is press-fitted on the rotor. The rotor and the bearing are prevented from being dislocated, the coaxiality of the rotor and the bearing pressing head is not affected, the position of the rotor in space does not need to be adjusted again, and the precision and efficiency of the press-fitting of the rotor and the bearing are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic view of the rotor adjusting mechanism and the rotor provided by the utility model embodiment;

[0023] Figure 2 is a first structural schematic view of the supporting piece provided by the utility model embodiment;

[0024] Figure 3 is a second structural schematic view of the supporting piece provided by the utility model embodiment;

[0025] Figure 4 is a structural schematic view of the bearing provided by the utility model embodiment;

[0026] Figure 5 is a schematic view of the bearing and the lifting piece provided by the utility model embodiment.

[0027] In the drawing:

[0028] 1, supporting piece; 11, sliding table; 12, supporting surface; 13, positioning hole;

[0029] 2, bearing; 21, accommodating groove; 22, bearing plate; 23, sliding groove; 24, bearing block; 25, limiting plate;

[0030] 3, lifting piece;

[0031] 100, rotor;

[0032] 200, bearing. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described below in detail, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar components or components having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0034] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the description of the present application, unless explicitly defined and limited otherwise, the first feature "on" or "below" the second feature can include that the first feature and the second feature are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] The technical scheme of the present application is further illustrated below by combining the drawings and through specific embodiments.

[0037] The present application provides a rotor adjusting mechanism and bearing press fitting device for improving the precision and efficiency of the rotor 100 and bearing 200 press fitting.

[0038] As shown in Figures 1 to 5 The rotor adjusting mechanism provided by the present application comprises a supporting piece 1, a bearing piece 2 and a lifting piece 3. The bearing piece 2 is provided with a containing groove 21 for placing the rotor 100, the bearing piece 2 is movably connected to the supporting piece 1, and the bearing piece 2 can move along the first horizontal direction relative to the supporting piece 1; the lifting piece 3 is fixedly connected with the supporting piece 1, and the lifting piece 3 can drive the supporting piece 1 to move along the vertical direction.

[0039] The rotor adjusting mechanism provided by the utility model can adjust the position of the rotor 100 in space, and improve the precision of the press fitting of the rotor 100 and the bearing 200. Figure 1

[0040] The supporting piece 1 is used for supporting the bearing piece 2, and the supporting piece 1 can be a supporting plate or a supporting block.

[0041] The bearing piece 2 is used for placing the rotor 100, and the bearing piece 2 is provided with the containing groove 21, the rotor 100 is placed in the containing groove 21, the containing groove 21 has the limiting effect on the rotor 100, the rotor 100 is prevented from rolling on the bearing piece 2, and the coaxiality of the rotor 100 and the bearing press head when the bearing 200 is press fitted is improved.

[0042] The bearing piece 2 is movably connected to the supporting piece 1, so that the bearing piece 2 can move relative to the supporting piece 1.

[0043] Optionally, the bearing piece 2 and the supporting piece 1 are slidably connected, one of the bearing piece 2 and the supporting piece 1 is fixedly provided with the sliding table 11, the other is fixedly provided with the sliding groove 23, and the sliding table 11 and the sliding groove 23 are slidably connected.

[0044] The sliding table 11 and the sliding groove 23 extend along the first horizontal direction, so that the bearing piece 2 can move relative to the supporting piece 1 along the first horizontal direction, the position of the rotor 100 along the first horizontal direction is adjusted, and the press fitting precision and efficiency of the bearing 200 are improved.

[0045] Specifically, referring to Figure 1 and Figure 2 ​The support 1 has a support surface 12, and the slide table 11 is arranged on the support surface 12. Two limiting members are arranged on the slide table 11 in a first horizontal direction, and the bearing 2 can slide between the two limiting members and abut against the limiting members. The limiting members can limit the movement of the bearing 2 between the two limiting members, avoid the bearing 2 from sliding off the slide table 11, protect the equipment, and improve the bearing 200 pressing efficiency. The support surface 12 can be located on the upper surface of the support 1 or the side surface of the support 1.

[0046] The slide table 11 can be integrally formed with the support 1 or detachably connected with the support 1. For example, the slide table 11 is detachably connected with the support 1, and the slide table 11 is connected with the support 1 through bolts. The support 1 is provided with through holes, and the bottom end of the slide table 11 is provided with first threaded holes. The positions and numbers of the through holes and the first threaded holes are one-to-one corresponding, so that the bolts can be sequentially arranged in the through holes and the first threaded holes, and then the support 1 and the slide table 11 are fixed. The numbers of the through holes and the first threaded holes are designed according to actual conditions, and the numbers of the through holes and the first threaded holes are not specifically limited in the embodiment.

[0047] The slide table 11 and the limiting member can be screwed, welded or clamped. For example, the slide table 11 and the limiting member are screwed. The slide table 11 is provided with second threaded holes on both sides, and the limiting member is screwed into the second threaded holes. At least part of the limiting member protrudes from the slide table 11, and is used to abut against the bearing 2 and limit the movement of the bearing 2 between the two limiting members. The limiting member can be an existing screw rod.

[0048] In other embodiments, the limiting member can also be arranged at both ends of the slide table 11 and can be connected through welding.

[0049] The slide table 11 can be provided with two or more than two. For example, the slide table 11 is provided with two, and the two slide tables 11 are arranged in a second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction. Figure 1 The two slide tables 11 are arranged in the second horizontal direction, can share the pressure of the bearing 2 and the rotor 100, reduce the stress of a single slide table 11, and improve the service life of the slide table 11. Meanwhile, the two slide tables 11 can also improve the stability of the movement of the bearing 2 relative to the support 1.

[0050] In the embodiment, refer to Figure 4The carrier 2 includes a carrier plate 22 provided with a sliding groove 23, or the carrier 2 includes the carrier plate 22 and a carrier block 24 connected to the carrier plate 22, and the carrier block 24 is provided with the sliding groove 23. The sliding groove 23 is matched with the sliding table 11 to enable the carrier 2 to slide relative to the support 1. The positions and the number of the sliding grooves 23 correspond to the positions and the number of the sliding table 11 one by one, to ensure that the sliding table 11 slides in the sliding groove 23. The carrier block 24 and the carrier plate 22 can be integrally formed or detachably connected.

[0051] In other embodiments, the bottom side of the carrier plate 22 is provided with the sliding groove 23, which is in sliding connection with the sliding table 11, to improve the stability of the movement of the carrier 2 relative to the support 1. The carrier plate 22 can be cast processed, and an existing processing mold is selected, so that the carrier plate 22 formed by casting has the sliding groove 23.

[0052] In the present embodiment, the carrier block 24 is provided with the sliding groove 23, and the carrier block 24 is detachably connected to the carrier plate 22. When the sliding groove 23 is damaged, the carrier block 24 and the sliding groove 23 can be replaced, to reduce the maintenance cost. The carrier block 24 and the carrier plate 22 can be connected by existing bolts, which is convenient and firm. The carrier block 24 can be a cuboid block or a semi-cylindrical block, and the shape of the carrier block 24 is not limited in the present embodiment.

[0053] The accommodating groove 21 is used for limiting the rotor 100, and the accommodating groove 21 can be a U-shaped groove or a V-shaped groove. Optionally, the accommodating groove 21 is a V-shaped groove, which can automatically adjust the supporting position of the rotor 100 according to the diameter of the rotor 100, has high positioning accuracy, and can improve the pressing accuracy of the bearing 200. The accommodating groove 21 can be formed by grooving the upper surface of the carrier plate 22.

[0054] In the present embodiment, the carrier 2 further includes two limiting plates 25, which are obliquely connected to the upper surface of the carrier plate 22, and the two limiting plates 25 enclose the accommodating groove 21 or the two limiting plates 25 and the carrier plate 22 enclose the accommodating groove 21. The limiting plates 25 can be inserted and fixed to the carrier plate 22, or can be welded and fixed to the carrier plate 22. For example, the limiting plates 25 are welded and fixed to the carrier plate 22, which is convenient to operate. The accommodating groove 21 in the present embodiment is a V-shaped groove, and the angle of the accommodating groove 21 can be 60°-120°, for example, 60°, 75°, 90°, 105° and 120°, and optionally, the angle of the accommodating groove 21 is 90°.

[0055] The lifting member 3 can drive the support 1 to move in the vertical direction, and the lifting member 3 is arranged below the support 1 and is fixedly connected to the support 1. When the lifting member 3 is elongated, the lifting member 3 drives the support 1 to move vertically upward, and when the lifting member 3 is shortened, the lifting member 3 drives the support 1 to move vertically downward.

[0056] The lifting member 3 can be provided with one or more. When provided with one lifting member 3, the lifting member 3 is located in the central region of the support 1 to improve the stability of the support 1. When provided with multiple lifting members 3, the lifting members 3 can be distributed circumferentially around the center of the support 1. For example, when the lifting member 3 is provided with three, the lifting member 3 can be distributed in a triangular shape, and the lifting member 3 is distributed at the three corner points of the equilateral triangle.

[0057] In the present embodiment, referring to Figure 3 and Figure 5 , the support 1 is a rectangular support plate, and the lifting member 3 is provided with four, and the four lifting members 3 are located at the four corner points of the rectangle to improve the stability of the support 1. The bottom side of the support 1 is provided with four positioning holes 13 for accommodating the lifting member 3 to improve the stability of the support 1 when moving in the vertical direction.

[0058] The lifting member 3 is an electric push rod, a pneumatic cylinder or a hydraulic cylinder, which is easy to obtain. Alternatively, the lifting member 3 is an electric push rod, which is convenient to arrange and install.

[0059] In the present embodiment, the bottom end of the lifting member 3 and / or the inner wall of the accommodating groove 21 is provided with a buffer. The bottom end of the lifting member 3 is provided with a buffer to reduce the impact of the lifting member 3 on the ground; the inner wall of the accommodating groove 21 is provided with a buffer to reduce the impact of the rotor 100 on the inner wall of the accommodating groove 21. For example, the buffer can be existing rubber, which is easy to obtain and has low cost.

[0060] The utility model also provides a bearing press device for improving the press efficiency of bearing 200, bearing press device includes drive mechanism, two bearing pressure heads and above-mentioned rotor adjusting mechanism, two bearing pressure heads are distributed in the both sides of bearing 2 along first horizontal direction, drive mechanism is used for driving two bearing pressure heads to be close to each other to press bearing 200 to rotor 100.

[0061] The bearing press-fitting device provided by the utility model, since the rotor adjusting mechanism is adopted, the position of the rotor 100 in the vertical direction is adjusted by the rotor adjusting mechanism during use, the axis of the rotor 100 is at the same height as the bearing pressing head and is aligned along the first horizontal direction, the two bearing pressing heads are close to each other along the first horizontal direction, and then the bearing 200 is press-fitted on the rotor 100. When one of the bearing pressing heads first abuts one end of the rotor 100, the rotor 100 is pushed to move, since the carrier 2 is movably connected with the support 1, the bearing pressing head pushes the rotor 100 to drive the carrier 2 to move, so that the rotor 100 does not relatively move with the carrier 2, until the other bearing pressing head abuts the other end of the rotor 100, and then the bearing 200 is press-fitted on the rotor 100. The misalignment of the rotor 100 and the carrier 2 is avoided, the coaxiality of the rotor 100 and the bearing pressing head is not affected, the position of the rotor 100 in the space does not need to be re-adjusted, and the precision and efficiency of the press-fitting of the rotor 100 and the bearing are improved.

[0062] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. All the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A rotor adjustment mechanism, characterized in that, include: Support component (1); The carrier (2) has a receiving groove (21) for placing the rotor (100), the carrier (2) is movably connected to the support (1), and the carrier (2) can move relative to the support (1) in a first horizontal direction; The lifting component (3) is fixedly connected to the support component (1), and the lifting component (3) can drive the support component (1) to move in the vertical direction.

2. The rotor adjustment mechanism according to claim 1, characterized in that, The carrier (2) is slidably connected to the support (1), or the carrier (2) is slidably connected to the support (1).

3. The rotor adjustment mechanism according to claim 2, characterized in that, One of the carrier (2) and the support (1) is fixedly provided with a slide (11), and the other is fixedly provided with a slide groove (23). The slide (11) and the slide groove (23) are slidably connected.

4. The rotor adjustment mechanism according to claim 3, characterized in that, The support member (1) has a support surface (12), and the slide (11) is provided on the support surface (12). Two limiting members are provided on the slide (11) at intervals along the first horizontal direction. The bearing member (2) can slide between the two limiting members and can abut against the limiting members.

5. The rotor adjustment mechanism according to claim 3, characterized in that, The support member (2) includes a support plate (22) with the groove (23) provided thereon; or, the support member (2) includes a support plate (22) and a support block (24) with the support block (24) connected to the support plate (22) with the groove (23) provided thereon.

6. The rotor adjustment mechanism according to claim 3, characterized in that, At least two slides (11) are provided, and the slides (11) are spaced apart along a second horizontal direction, which is perpendicular to the first horizontal direction.

7. The rotor adjustment mechanism according to claim 1, characterized in that, The receiving groove (21) is a U-shaped groove or a V-shaped groove.

8. The rotor adjustment mechanism according to claim 1, characterized in that, The lifting component (3) is an electric push rod, a pneumatic cylinder, or a hydraulic cylinder.

9. The rotor adjusting mechanism according to any one of claims 1-8, characterized in that, A buffer is provided on the bottom end of the lifting component (3) and / or on the inner wall of the receiving groove (21).

10. A bearing press-fitting device, characterized in that, The device includes a drive mechanism, two bearing pressure heads, and a rotor adjustment mechanism as described in any one of claims 1-9. The two bearing pressure heads are distributed on both sides of the carrier (2) along the first horizontal direction. The drive mechanism is used to drive the two bearing pressure heads to move closer to each other to press the bearing (200) onto the rotor (100).

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