A bar straightening device for a motor rotor

Abstract

The utility model provides a kind of motor rotor bar straightening equipment, it is applied to motor bar straightening technical field.The device includes operation platform, and the top surface four corners of operation platform are respectively welded with limiting post, and the top surface of limiting post is welded with top plate, and the top surface of top plate is provided with driving structure.The output end of driving motor drives driving gear to rotate, driving gear drives driving chain to rotate to drive rotating block to rotate, rotating block rotates in the process to drive screw to rotate, realize screw rotation in the process of rotating block, displacement in its inside up and down, to be displaced up and down along with screw displacement process, when moving plate displacement up and down, pressing roller is displaced in succession, so it can be according to the thickness of motor rotor bar Adjust the gap between pressing roller and rotating roller, realize without adjusting pressing part one by one, avoid the height of each pressing part is not identical, in this way, it can improve straightening effect.

Description

Technical Field

[0001] This utility model relates to the field of motor guide bar straightening, and in particular to a motor rotor guide bar straightening device. Background Technology

[0002] Motor conductor bars are the core conductive components of the rotor of an AC asynchronous motor. They are embedded in the rotor core slots and connected by end rings to form a "cage-type" closed loop. Their core function is to cut the rotating magnetic field of the stator to generate induced current, which in turn interacts with the magnetic field to form electromagnetic torque to drive the rotor to rotate. In terms of materials, aluminum (low cost, easy to die-cast, suitable for medium and low power), copper (high conductivity, low loss, suitable for high power), or copper-clad aluminum (balancing performance and cost) are commonly used. For special heavy-load starting scenarios, high-resistance alloys (such as brass) are used. In terms of structure, there are ordinary cage type (for normal working conditions), deep slot type (utilizing the skin effect to improve starting torque), double cage type (with upper and lower cages for starting / running, balancing starting and efficiency), and cast aluminum / cast copper integrated type (no joints, high reliability), etc. Its conductivity and structural design directly determine the motor efficiency (copper conductors are 2% to 5% more efficient than aluminum), starting performance (high-resistance materials have large starting torque) and operational reliability. Motor conductors are usually made by using copper or aluminum columns through metal pultrusion molding equipment. After the motor conductors are produced, they need to be straightened, and metal straightening equipment is usually used for straightening.

[0003] Currently, metal straightening equipment typically adjusts the pressing parts one by one using the connected screws or extension structures. This individual adjustment makes it difficult to ensure all pressing parts are viewed from the same height, resulting in height errors. Inconsistent heights of the pressing parts during straightening reduce the straightening effect. Therefore, there is an urgent need for a high-precision motor rotor bar straightening device. Utility Model Content

[0004] The purpose of this invention is to provide a motor rotor guide bar straightening device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A motor rotor guide bar straightening device includes: an operating table, a rotating roller connected to the top of the operating table via a rotating shaft, the number of rotating shafts and rotating rollers being the same, one end of the rotating shaft penetrating the top of the operating table and having a gear welded to this end, a motor fixedly installed inside the middle of the back of the operating table, a second gear fixedly installed at the output end of the motor, the second gear being connected to the third gear via a chain, characterized in that limit posts are welded to the four corners of the top surface of the operating table, a top plate is welded to the top surface of the limit posts, a driving structure is provided on the top surface of the top plate, a pressing straightening structure is slidably connected to the limit posts, and the driving structure and the pressing straightening structure are connected via a chain.

[0007] Furthermore, the pressing and straightening structure consists of a moving plate, a connecting block, a screw, and a pressing roller.

[0008] Furthermore: the four corners of the movable plate are slidably connected to the limiting posts respectively, a connecting block is welded to the middle of the top surface of the movable plate, the connecting block is rotatably connected to the bottom end of the screw, and the screw passes through the middle of the top plate.

[0009] Furthermore, the bottom end of the movable plate is rotatably connected to multiple pressing rollers via a connecting shaft, and the bottom end of the pressing rollers is parallel to the top end of the rotating rollers, with the pressing rollers located directly above the rotating rollers.

[0010] Furthermore, the drive structure consists of a connecting bracket, a rotating block, a drive motor, a drive gear, and a drive chain.

[0011] Furthermore: the connecting bracket is welded to the middle of the top surface of the top plate, and a rotating block is rotatably connected to the top of the connecting bracket, and the top of the outer peripheral surface of the rotating block is provided with meshing teeth for meshing with the drive chain.

[0012] Furthermore: a drive motor is fixedly installed at one end of the top surface of the top plate, and a drive gear is fixedly connected to the output end of the drive motor. The drive chain meshes with the rotating block and the drive gear respectively.

[0013] Furthermore: the inner wall of the rotating block is provided with threads, and the inner wall of the rotating block is threadedly connected to the screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the output end of the drive motor drives the drive gear to rotate, the drive gear drives the drive chain to rotate, thereby driving the rotating block to rotate. During the rotation of the rotating block, the screw rotates, and the screw moves up and down inside the rotating block as it rotates. As the screw moves up and down, the moving plate moves up and down, and the pressing roller moves accordingly. Thus, the gap between the pressing roller and the rotating roller can be adjusted according to the thickness of the motor rotor guide bar, eliminating the need to adjust the pressing parts one by one, avoiding inconsistent heights of the pressing parts, and improving the straightening effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This invention provides a three-dimensional structural schematic diagram of a motor rotor guide bar straightening device.

[0017] Figure 2 This is a rear view schematic diagram of a motor rotor guide bar straightening device according to the present invention;

[0018] Figure 3 This diagram shows a formal cross-sectional view of the motor rotor guide bar straightening device of this utility model;

[0019] Figure 4 This invention illustrates a motor rotor guide bar straightening device. Figure 3 Enlarged view of part A in the middle.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Operating platform; 2. Rotating roller; 3. Gear; 4. Gear II; 5. Limiting post; 6. Top plate; 701. Moving plate; 702. Connecting block; 703. Screw; 704. Pressing roller; 801. Connecting bracket; 802. Rotating block; 803. Drive motor; 804. Drive gear; 805. Drive chain. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-4 As shown, a motor rotor guide bar straightening device includes: an operating table 1, with a rotating roller 2 connected to the top of the operating table 1 via a rotating shaft, and the number of rotating shafts and rotating rollers 2 being the same. One end of the rotating shaft passes through the top of the operating table 1, and a gear 3 is welded to this end. A motor is fixedly installed inside the middle of the back of the operating table 1, and a second gear 4 is fixedly installed at the output end of the motor. The gear 3 and the second gear 4 are connected by a chain. The output end of the motor starts and drives the second gear 4 to rotate. The rotation of the second gear 4 drives the chain to rotate, and the rotation of the chain drives the gear 3 to rotate. During the rotation of the gear 3, the rotating shaft rotates, which in turn drives the rotating roller 2 to rotate. The rotation of the rotating roller 2 can push the motor rotor guide bar to move.

[0026] Limiting posts 5 are welded to the four corners of the top surface of the operating table 1. A top plate 6 is also welded to the top surface of the limiting posts 5. A driving structure is set in the middle of the top plate 6. A pressing and straightening structure is set in the limiting posts 5. The pressing and straightening structure can move on the limiting posts 5. At the same time, the driving structure is connected to the pressing and straightening structure through a chain, thereby realizing the driving structure driving the pressing and straightening structure to move on the limiting posts 5.

[0027] The pressing and straightening structure described above consists of a movable plate 701, a connecting block 702, a screw 703, and a pressing roller 704. The four corners of the movable plate 701 are slidably connected to the limiting posts 5, allowing the movable plate 701 to slide up and down on the limiting posts 5. A connecting block 702 is welded to the middle of the top surface of the movable plate 701. The connecting block 702 is rotatably connected to the bottom end of the screw 703, allowing the screw 703 to rotate within the connecting block 702. The screw 703 cannot separate from the connecting block 702 during rotation. The screw 703 passes through the middle of the top plate 6 and extends upward.

[0028] The bottom end of the movable plate 701 is rotatably connected to several pressing rollers 704 via a connecting shaft. The bottom end of the pressing rollers 704 is parallel to the top end of the rotating roller 2, and the pressing rollers 704 are located directly above the rotating roller 2. When the movable plate 701 moves towards the rotating roller 2, the rotating roller 2 and the pressing rollers 704 can clamp the motor rotor guide bar and rotate the rotating roller 2, thereby driving the motor rotor guide bar to move and pass through the gap between the pressing rollers 704 and the rotating roller 2, thus straightening it.

[0029] The drive structure described above consists of a connecting bracket 801, a rotating block 802, a drive motor 803, and a drive chain 805. The connecting bracket 801 is welded to the middle of the top surface of the top plate 6. The rotating block 802 is rotatably connected to the top of the connecting bracket 801, and the top of the outer circumference of the rotating block 802 is provided with meshing teeth for engaging with the drive chain 805. The drive motor 803 is fixedly installed at one end of the top surface of the top plate 6, and the output end of the drive motor 803 is fixedly connected to a drive gear 804. The drive chain 805 meshes with the rotating block 802 and the drive gear 804 respectively. The inner wall of the rotating block 802 is provided with threads, and the inner wall of the rotating block 802 is threadedly connected to the screw 703. The drive chain 805 is driven by the output end of the drive motor 803. The rotating gear 804 drives the drive chain 805 to rotate, which in turn drives the rotating block 802 to rotate. During the rotation of the rotating block 802, the screw 703 rotates, causing the screw 703 to move up and down inside the rotating block 802 as it rotates. This movement of the screw 703 causes the moving plate 701 to move up and down as it moves. When the moving plate 701 moves up and down, the pressing roller 704 moves accordingly. This allows the gap between the pressing roller 704 and the rotating roller 2 to be adjusted according to the thickness of the motor rotor guide bar. This enables both the pressing roller 704 and the rotating roller 2 to clamp the motor rotor guide bar and, as the rotating roller 2 rotates, push the motor rotor guide bar to move, thus smoothing out any bent parts.

[0030] The output of the drive motor 803 drives the drive gear 804 to rotate, which in turn drives the drive chain 805 to rotate, thereby causing the rotating block 802 to rotate. During the rotation of the rotating block 802, the screw 703 rotates, allowing the screw 703 to move up and down within the rotating block 802 as it rotates. This movement of the screw 703 causes the moving plate 701 to move up and down as well. As the moving plate 701 moves up and down, the pressing roller 704 moves accordingly. This allows the gap between the pressing roller 704 and the rotating roller 2 to be adjusted according to the thickness of the motor rotor guide bar, eliminating the need to adjust each pressing part individually, avoiding inconsistent heights among the pressing parts, and improving the straightening effect.

[0031] Working principle: During use, the drive motor 803 is started, driving the screw 703 to rotate, which in turn moves the moving plate 701. The gap between the pressing roller 704 and the rotating roller 2 is controlled to meet the thickness of the motor rotor guide bar. One end of the motor rotor guide bar is placed in the gap between the pressing roller 704 and the rotating roller 2. The motor is started, and the motor drives the gear 4 to rotate. The rotation of the gear 4 drives the gear 3 to rotate through the chain, which in turn drives the rotating roller 2 to rotate. The rotation of the rotating roller 2 causes the motor rotor guide bar to fully enter the gap between the pressing roller 704 and the rotating roller 2, and is straightened by the pressing roller 704 and the rotating roller 2. When the motor rotor guide bar is sent out of the gap between the pressing roller 704 and the rotating roller 2, the straightening of the motor rotor guide bar is completed.

[0032] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A motor rotor bar straightening device, comprising: An operating table (1) is provided. A rotating roller (2) is connected to the top of the operating table (1) via a rotating shaft. The number of rotating shafts and rotating rollers (2) is the same. One end of the rotating shaft passes through the top of the operating table (1) and a gear (3) is welded to this end. A motor is fixedly installed inside the middle of the back of the operating table (1). A gear (4) is fixedly installed at the output end of the motor. The gear (3) and gear (4) are connected by a chain. The operating table (1) is characterized in that limit posts (5) are welded to the four corners of the top surface of the operating table (1). A top plate (6) is welded to the top surface of the limit posts (5). A driving structure is provided on the top surface of the top plate (6). A pressing and straightening structure is slidably connected to the limit posts (5). The driving structure and the pressing and straightening structure are connected by a chain.

2. The motor rotor guide bar straightening device according to claim 1, characterized in that: The pressing and straightening structure consists of a moving plate (701), a connecting block (702), a screw (703), and a pressing roller (704).

3. The motor rotor guide bar straightening device according to claim 2, characterized in that: The four corners of the movable plate (701) are slidably connected to the limiting post (5). A connecting block (702) is welded to the middle of the top surface of the movable plate (701). The connecting block (702) is rotatably connected to the bottom end of the screw (703). The screw (703) passes through the middle of the top plate (6).

4. The motor rotor guide bar straightening device according to claim 3, characterized in that: The bottom of the movable plate (701) is rotatably connected to multiple pressing rollers (704) via a connecting shaft, and the bottom of the pressing rollers (704) is parallel to the top of the rotating roller (2), with the pressing rollers (704) located directly above the rotating roller (2).

5. The motor rotor guide bar straightening device according to claim 4, characterized in that: The drive structure consists of a connecting bracket (801), a rotating block (802), a drive motor (803), a drive gear (804), and a drive chain (805).

6. The motor rotor guide bar straightening device according to claim 5, characterized in that: The connecting bracket (801) is welded to the middle of the top surface of the top plate (6). The top of the connecting bracket (801) is rotatably connected to a rotating block (802), and the top of the outer peripheral surface of the rotating block (802) is provided with meshing teeth for meshing with the drive chain (805).

7. The motor rotor guide bar straightening device according to claim 6, characterized in that: A drive motor (803) is fixedly installed at one end of the top surface of the top plate (6). A drive gear (804) is fixedly connected to the output end of the drive motor (803). The drive chain (805) meshes with the rotating block (802) and the drive gear (804) respectively.

8. The motor rotor guide bar straightening device according to claim 7, characterized in that: The inner wall of the rotating block (802) is provided with threads, and the inner wall of the rotating block (802) is threadedly connected to the screw (703).

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