Device for installing DD motor rotor without cogging force

Abstract

The utility model relates to the technical field of DD motor rotor installation, in particular to a DD motor rotor installation cogging force-free device, which comprises a support plate, a magnet yoke and a positioning plate are respectively inserted into the top of the support plate through positioning pins, a plurality of permanent magnets are adhered to the top of the magnet yoke through glue, a cavity is arranged in the middle of the inner side of the positioning plate, and the permanent magnets are arranged in the cavity. An adjusting assembly is arranged in the cavity, and a plurality of mounting assemblies are arranged on the edge of the adjusting assembly; according to the improved motor rotor assembling device, the distance between the permanent magnets in the middle of each guide block is enabled to be the same through the mounting assembly, the distance between the adjacent permanent magnets is ensured to be the same, a DD motor is enabled to have high consistency and small cogging force, the distance between the guide blocks on the outer side is changed by rotating the adjusting rod, and the purpose of flexibly adjusting the distance between the guide blocks is achieved. The distance between the guide blocks can be changed at any time according to needs, installation of permanent magnets with different distances is met, and adaptability and flexibility of the device are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of DD motor rotor installation, in particular to a DD motor rotor installation device without cogging force. Background Art

[0002] With the increasing maturity of direct-drive motor technology, direct-drive motors are being used in more and more industries, such as engineering machinery, medical equipment, aerospace, military field, catering industry, construction industry, wind power generation, etc., and the requirements for the consistency of direct-drive motor parameters are getting higher and higher. At present, the gaps between each permanent magnet on the yoke of the DD motor rotor are uneven, and the gaps between each permanent magnet of the old-style tooling are different, which has deviations, resulting in poor consistency of the DD motor and large cogging force. The installation and adjustment device is to reduce the cogging force of the DD motor rotor and reduce the errors caused by the assembly of the installation tooling. It is necessary to control the relative distance of each tooth of the installation tooling, and finally the consistency of the feedback parameters is better. Therefore, we have introduced a device for installing a DD motor rotor without cogging force.

[0003] The prior art has the following problems: 1. When the permanent magnets of the existing motor rotor are installed on the yoke, the spacing between adjacent permanent magnets is unequal, resulting in poor consistency of the DD motor and large tooth force; 2. When the permanent magnets of the existing DD motor rotor are installed, the positioning plate has poor flexibility and the diameter of the positioning plate is fixed, and the outer diameter of the positioning plate cannot be adjusted according to installation requirements to achieve the purpose of adjusting the installation spacing of the permanent magnets. Utility Model Content

[0004] The purpose of the utility model is to provide a device for installing a DD motor rotor without cogging force, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for installing a DD motor rotor without cogging force, comprising a support plate, a yoke and a positioning plate are respectively inserted into the top of the support plate through positioning pins, a plurality of permanent magnets are bonded to the top of the yoke by glue, a cavity is provided in the middle of the inner side of the positioning plate, an adjustment component is provided inside the cavity, and a plurality of mounting components are provided on the edge of the adjustment component;

[0006] The installation assembly includes a guide block fixedly connected to the edge of the adjustment assembly, a telescopic rod fixedly connected to the top surface of the guide block, a pressing rod fixedly connected to the top end of the telescopic rod, two extrusion blocks fixedly connected to both sides of the bottom end of the pressing rod, a sliding block attached to the bottom of the two extrusion blocks, a calibration plate fixedly connected to one side of the sliding block, and two installation cavities are provided on both sides of the interior of the guide block.

[0007] Further preferably, a sliding plate is fixedly connected to one side of the sliding block, the sliding plate is slidably connected to the middle part of the guide rod, and a first spring is fixedly connected to one side of the sliding plate.

[0008] Further preferably, the side of the sliding block that fits the extrusion block is designed to be inclined, and the sliding block, the first spring, the sliding plate and the guide rod are all located inside the installation cavity, and an elastic structure is formed between the sliding plate and the installation cavity through the first spring.

[0009] Further preferably, the adjustment assembly includes an adjustment rod rotatably connected to the middle of the top surface of the positioning plate, the bottom end of the adjustment rod is fixedly connected to a rotating disk, and a plurality of arc grooves are opened in the middle of the rotating disk.

[0010] Further preferably, a plurality of strip grooves are opened on the side of the rotating disk, and a friction plate is attached to the side of the rotating disk, a second spring is fixedly connected to the side of the friction plate away from the rotating disk, and an end of the second spring away from the friction plate is fixedly connected to the inner wall of the positioning plate.

[0011] Further preferably, the middle parts of several of the arc-shaped grooves are slidably connected with sliding pins, and the sliding pins are fixedly connected to the top surface of the moving rod, and one end of the moving rod away from the center of the positioning plate passes through the outside of the positioning plate and is connected to the guide block.

[0012] Further preferably, the moving rod is slidably connected to the middle of the sliding groove, the sliding groove is opened on the inner bottom surface of the positioning plate, and there are several sliding grooves, which are equiangularly distributed.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, by placing the permanent magnet to be installed in the vertical groove in the middle of the guide block and pressing the pressing rod downward, the two calibration plates can be driven to move toward the permanent magnet in the middle at the same time, so that the permanent magnet is calibrated to the middle of the guide block, so that the spacing between the permanent magnets in the middle of each guide block is the same, and then the permanent magnet is slid down along the inner wall of the calibration plate until the permanent magnet contacts the yoke, and the permanent magnet is fixed on the yoke using the curing agent and epoxy resin glue on the yoke to complete the installation, thereby ensuring that the spacing between adjacent permanent magnets is the same, so that the DD motor has higher consistency and smaller toothing force.

[0015] In the utility model, the spacing between the outer guide blocks is changed by rotating the adjustment rod, so as to achieve the purpose of flexibly adjusting the spacing between the guide blocks. The spacing between the guide blocks can be changed at any time according to the needs to meet the installation of permanent magnets with different spacings, thereby enhancing the adaptability and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the main three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of a half-section three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the rotating disk of the utility model from top view;

[0019] Figure 4 For this utility model Figure 3 A in the figure is an enlarged schematic diagram of the three-dimensional structure;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the mobile rod of the utility model from top view;

[0021] Figure 6 This is a schematic diagram of the main three-dimensional structure of the installation component of the utility model;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the guide block of the utility model in front view;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide block of the utility model in a top view.

[0024] In the figure: 1. support plate; 2. yoke; 3. positioning plate; 4. permanent magnet; 5. cavity; 6. adjustment assembly; 601. adjustment rod; 602. rotating disk; 603. arc groove; 604. sliding pin; 605. moving rod; 606. strip groove; 607. friction plate; 608. second spring; 609. sliding groove; 7. installation assembly; 701. guide block; 702. telescopic rod; 703. pressing rod; 704. extrusion block; 705. sliding block; 706. calibration plate; 707. sliding plate; 708. guide rod; 709. first spring; 7010. installation cavity. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 8The utility model provides a technical solution: a device for installing a DD motor rotor without cogging force, comprising a support plate 1, a yoke 2 and a positioning plate 3 are respectively inserted on the top of the support plate 1 through positioning pins, a plurality of permanent magnets 4 are bonded to the top of the yoke 2 by glue, a cavity 5 is provided in the middle of the inner side of the positioning plate 3, an adjustment component 6 is provided inside the cavity 5, and a plurality of mounting components 7 are provided on the edge of the adjustment component 6.

[0027] In this embodiment, Figure 6 and Figure 7 As shown, the mounting assembly 7 includes a guide block 701 fixedly connected to the edge of the adjustment assembly 6, a telescopic rod 702 is fixedly connected to the top surface of the guide block 701, a pressing rod 703 is fixedly connected to the top of the telescopic rod 702, two extrusion blocks 704 are fixedly connected to the bottom ends of the pressing rod 703, a sliding block 705 is attached to the bottom of the two extrusion blocks 704, a calibration plate 706 is fixedly connected to one side of the sliding block 705, two mounting cavities 7010 are provided on both sides of the interior of the guide block 701, a side of the sliding block 705 attached to the extrusion block 704 is inclined, and the sliding block 705, the first spring 709, the sliding plate 707 and the guide rod 708 are all located inside the mounting cavity 7010, and the sliding plate 707 and the mounting cavity 7010 are connected by the first spring 7 09 constitutes an elastic structure; the pressing rod 703 is guided by the telescopic rod 702, so that the pressing rod 703 maintains a straight line and moves up and down, and when the pressing rod 703 is pressed down, the two extrusion blocks 704 will be simultaneously driven to move downward, causing extrusion to the sliding block 705. Since the side of the sliding block 705 that fits the extrusion block 704 is designed to be inclined, the sliding block 705 moves toward the outside of the installation cavity 7010 under the extrusion of the extrusion block 704, thereby driving the two calibration plates 706 to approach the middle of the guide block 701 at the same time, and calibrating the permanent magnet 4 located in the middle of the guide block 701 so that the permanent magnet 4 is located in the center of the guide block 701, thereby ensuring that the permanent magnet 4 in the middle of each guide block 701 has the same spacing, so that the DD motor has higher consistency and smaller tooth groove force.

[0028] In this embodiment, Figure 7 and Figure 8 As shown, one side of the sliding block 705 is fixedly connected to a sliding plate 707, and the sliding plate 707 is slidably connected to the middle part of the guide rod 708, and one side of the sliding plate 707 is fixedly connected to a first spring 709; when the sliding block 705 is squeezed by the squeezing block 704, the sliding plate 707 moves together with the sliding block 705, and the sliding plate 707 will compress the first spring 709. When the permanent magnet 4 is calibrated, release the hand pressing the pressing rod 703, the first spring 709 rebounds, and the sliding block 705 is reset through the sliding plate 707. At this time, the sliding block 705 squeezes the squeezing block 704 upward to reset it for the next use.

[0029] In this embodiment, Figure 3 and Figure 5 As shown, the adjustment component 6 includes an adjustment rod 601 rotatably connected to the middle part of the top surface of the positioning plate 3, the bottom end of the adjustment rod 601 is fixedly connected to a rotating disk 602, the middle part of the rotating disk 602 is provided with a plurality of arc grooves 603, the middle parts of the plurality of arc grooves 603 are slidably connected with sliding pins 604, the sliding pins 604 are fixedly connected to the top surface of a moving rod 605, and one end of the moving rod 605 away from the center of the positioning plate 3 passes through the outer side of the positioning plate 3 and is connected to the guide block 701; the rotating disk 602 is driven to rotate by twisting the adjustment rod 601, the sliding pin 604 will move in the arc groove 603, and the sliding pin 604 will drive the strip groove 606 at the bottom to move, and the strip groove 606 will drive the mounting component 7 at one end to move synchronously.

[0030] In this embodiment, Figure 4 and Figure 5 As shown, a plurality of strip grooves 606 are provided on the side of the rotating disk 602, and a friction plate 607 is attached to the side of the rotating disk 602, and a second spring 608 is fixedly connected to the side of the friction plate 607 away from the rotating disk 602, and one end of the second spring 608 away from the friction plate 607 is fixedly connected to the inner wall of the positioning plate 3; the friction plate 607 can apply a certain pressure to the rotating disk 602 through the second spring 608, so that the rotating disk 602 will not rotate by itself, and the strip grooves 606 can enhance the friction between the friction plate 607 and the rotating disk 602.

[0031] In this embodiment, Figure 5 As shown, the moving rod 605 is slidably connected to the middle part of the sliding groove 609, and the sliding groove 609 is opened on the inner bottom surface of the positioning plate 3, and the number of the sliding grooves 609 is several, and the several sliding grooves 609 are equiangularly distributed; when the moving rod 605 moves with the sliding pin 604, the moving rod 605 will be limited by the sliding groove 609, so that the moving rod 605 can only move in a straight line along the direction of the sliding groove 609, thereby driving the guide block 701 at the end to move, so that several guide blocks 701 are simultaneously away from or close to the rotating disk 602, and this structure can adjust the spacing between several guide blocks 701, enhances the adaptability of the positioning plate 3, is suitable for adjusting the spacing between the permanent magnets 4 according to different installation requirements, and at the same time ensures that the spacing between each permanent magnet 4 is the same after adjustment.

[0032] The use method and advantages of the utility model: When the DD motor rotor is installed without cogging force, the working process is as follows:

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, first, the yoke 2 and the positioning plate 3 are installed on the support plate 1 through the positioning pins and the positioning pin holes, and then the adjustment rod 601 is rotated as needed to change the spacing between the outer guide blocks 701 to achieve the purpose of flexibly adjusting the spacing of the guide blocks 701. The spacing of the guide blocks 701 can be changed at any time as needed to meet the installation of permanent magnets 4 with different spacings, thereby enhancing the adaptability and flexibility of the device. Then, curing agent and epoxy resin glue are applied to the yoke 2, and the permanent magnet 4 to be installed is placed in the vertical groove in the middle of the guide block 701. The pressing rod 703 is pressed downward, which can drive the two calibration plates 706 to move toward the permanent magnet 4 in the middle at the same time, so that the permanent magnet 4 is calibrated to the middle of the guide block 701, so that the spacing of the permanent magnet 4 in the middle of each guide block 701 is the same, and then the permanent magnet 4 is slid down along the inner wall of the calibration plate 706 until the permanent magnet 4 contacts the yoke 2, and the permanent magnet 4 is fixed on the yoke 2 using the curing agent and epoxy resin glue on the yoke 2 to complete the installation.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for mounting a DD motor rotor without cogging force, comprising a support plate (1), characterized in that: The top of the support plate (1) is respectively plugged with a yoke (2) and a positioning plate (3) via positioning pins, a plurality of permanent magnets (4) are bonded to the top of the yoke (2) via glue, a cavity (5) is provided in the middle of the inner side of the positioning plate (3), an adjustment component (6) is provided inside the cavity (5), and a plurality of mounting components (7) are provided on the edge of the adjustment component (6); The mounting assembly (7) comprises a guide block (701) fixedly connected to the edge of the adjustment assembly (6); a telescopic rod (702) is fixedly connected to the top surface of the guide block (701); a pressing rod (703) is fixedly connected to the top of the telescopic rod (702); two extrusion blocks (704) are fixedly connected to the bottom ends of the pressing rod (703); sliding blocks (705) are attached to the bottoms of the two extrusion blocks (704); a calibration plate (706) is fixedly connected to one side of the sliding block (705); and two mounting cavities (7010) are provided on both sides of the interior of the guide block (701).

2. The device for installing a DD motor rotor without cogging force according to claim 1, characterized in that: A sliding plate (707) is fixedly connected to one side of the sliding block (705), the sliding plate (707) is slidably connected to the middle of the guide rod (708), and a first spring (709) is fixedly connected to one side of the sliding plate (707).

3. The device for installing a DD motor rotor without cogging force according to claim 2, characterized in that: The side of the sliding block (705) that fits the extrusion block (704) is designed to be inclined, and the sliding block (705), the first spring (709), the sliding plate (707) and the guide rod (708) are all located inside the installation cavity (7010), and an elastic structure is formed between the sliding plate (707) and the installation cavity (7010) through the first spring (709).

4. The device for installing a DD motor rotor without cogging force according to claim 1, characterized in that: The adjustment assembly (6) comprises an adjustment rod (601) rotatably connected to the middle of the top surface of the positioning plate (3); the bottom end of the adjustment rod (601) is fixedly connected to a rotating disk (602); and a plurality of arc grooves (603) are provided in the middle of the rotating disk (602).

5. The device for installing a DD motor rotor without cogging force according to claim 4, characterized in that: The side of the rotating disk (602) is provided with a plurality of strip grooves (606), and a friction plate (607) is attached to the side of the rotating disk (602). A second spring (608) is fixedly connected to the side of the friction plate (607) away from the rotating disk (602), and one end of the second spring (608) away from the friction plate (607) is fixedly connected to the inner wall of the positioning plate (3).

6. The device for installing a DD motor rotor without cogging force according to claim 4, characterized in that: The middle parts of several arc-shaped grooves (603) are slidably connected with sliding pins (604), and the sliding pins (604) are fixedly connected to the top surface of the moving rod (605). The end of the moving rod (605) away from the center of the positioning plate (3) penetrates to the outside of the positioning plate (3) and is connected to the guide block (701).

7. The device for installing a DD motor rotor without cogging force according to claim 6, characterized in that: The moving rod (605) is slidably connected to the middle of the sliding groove (609), and the sliding groove (609) is opened on the inner bottom surface of the positioning plate (3). There are a plurality of sliding grooves (609), and the plurality of sliding grooves (609) are equiangularly distributed.

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