Balance block profiling structure for rotor magnetization

Abstract

The utility model belongs to the technical field of compressors, and discloses a counterbalance profiling structure used for rotor magnetization, the rotor is provided with an inner shaft hole, the side end face of the rotor is provided with a mounting hole, the counterbalance profiling structure used for rotor magnetization comprises a main body, a boss profiling block and a positioning portion, the boss profiling block is arranged on the first side of the main body in a protruding mode, and the positioning portion is arranged on the first side of the main body. The boss profiling block is provided with a supporting positioning face used for making contact with a rotor magnetizing device, and the positioning part is used for being installed with a rotor in a positioning mode. The counterbalance profiling structure for rotor magnetization provided by the utility model can be arranged on a rotor when the rotor of a compressor is subjected to a magnetization process, replaces a rotor counterbalance, can realize quick positioning of the rotor without the rotor counterbalance, and ensures the accuracy of the subsequent rotor magnetization direction.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a balance block profiling structure for rotor magnetization. Background Technique

[0002] The rotor inside the compressor needs to go through a magnetization process by an external magnetization device. Specifically, first, a magnetization coil is sleeved around the rotor, and the magnetization coil instantaneously discharges to generate a strong magnetic field, so that the permanent magnetic material (magnet steel) inside the rotor in the magnetization coil is permanently magnetized. Since there are requirements for the pole direction of the rotor, the poles of the rotor must be aligned with the poles of the magnetization coil. Therefore, before the rotor is magnetized, the rotor must be positioned so that the angle of the rotor matches the angle of the magnetization coil.

[0003] For the rotor inside the compressor, the rotor positioning method is to use a tooling positioning head to position the rotor balance block, that is, the positioning reference of the rotor is the rotor balance block. In the prior art, some rotors often do not assemble the rotor balance block during the magnetization process. Without the positioning reference of the rotor balance block, the positioning efficiency and accuracy of the rotor will be affected. Content of the Utility Model

[0004] The purpose of the utility model is to provide a balance block profiling structure for rotor magnetization, which can be installed on the rotor during the magnetization process of the rotor of the compressor and replace the rotor balance block, can realize the rapid positioning of the rotor without assembling the rotor balance block, and ensure the accuracy of the subsequent rotor magnetization orientation.

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

[0006] A balance block profiling structure for rotor magnetization, used to connect the rotor. The rotor is provided with an inner shaft hole, and mounting holes are provided on the side end surface of the rotor. The balance block profiling structure for rotor magnetization includes:

[0007] A main body;

[0008] A convex block profiling block, protruding from the first side of the main body. The convex block profiling block is provided with a support positioning surface for contacting the rotor magnetization device;

[0009] A positioning part, which is fixedly installed with the rotor.

[0010] Preferably, the positioning part includes a positioning column provided on the second side of the main body, and the positioning column is used for plugging into the inner shaft hole.

[0011] Preferably, the positioning part further includes a positioning pin provided on the second side of the main body. The axis of the positioning pin is parallel to and does not overlap with the axis of the rotor, and the positioning pin is used for plugging into the mounting hole.

[0012] Preferably, one or more avoidance holes are further formed in the second side of the main body, and the avoidance holes are used to avoid the connecting members protruding from the rotor.

[0013] Preferably, the main body is arranged in a cylindrical shape, and the convex platform profiling block is in an arc shape.

[0014] Preferably, the outer side wall of the convex platform profiling block is flush with the outer side wall of the main body.

[0015] Preferably, a first chamfer is arranged at the edge of the end of the positioning post facing away from the main body.

[0016] Preferably, a second chamfer is arranged at the edge of the end of the positioning pin facing away from the main body.

[0017] Preferably, the convex platform profiling block and the main body are integrally formed; or the convex platform profiling block and the main body are fixedly connected.

[0018] Preferably, the positioning post and the main body are integrally formed; or the positioning post and the main body are fixedly connected.

[0019] Preferably, the positioning pin and the main body are integrally formed; or the positioning pin and the main body are fixedly connected.

[0020] Beneficial effects:

[0021] The profiling structure of the balance block for rotor magnetizing provided by the present utility model has a convex platform profiling block on the first side of the main body, so that the whole can form a replaceable profiling structure similar to the rotor balance block, and the convex platform profiling block contacts the rotor magnetizing device through the support positioning surface. In addition, the main body is also provided with a positioning portion for positioning and installing with the rotor, and reliable positioning is achieved between the positioning portion and the rotor when the profiling structure is assembled with the rotor. The profiling structure is simple in structure, can be installed on the rotor during the magnetizing process of the compressor rotor, and replaces the rotor balance block, can realize the rapid positioning of the rotor without the assembled rotor balance block, and ensure the accuracy of the subsequent rotor magnetizing orientation. Description of the drawings

[0022] Figure 1 is a schematic structural diagram of one perspective of the profiling structure of the balance block for rotor magnetizing provided by the present utility model;

[0023] Figure 2 is a schematic structural diagram of another perspective of the profiling structure of the balance block for rotor magnetizing provided by the present utility model;

[0024] Figure 3It is a schematic structural view of another perspective of the balance weight profiling structure for rotor magnetization provided by the present utility model.

[0025] In the figure:

[0026] 1. Main body; 11. Avoidance hole;

[0027] 2. Boss profiling block;

[0028] 3. Positioning column; 31. First chamfer;

[0029] 4. Positioning pin; 41. Second chamfer. Specific embodiments

[0030] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0031] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0033] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0034] This embodiment provides a balance weight profiling structure for rotor magnetization. The profiling structure is used to connect to a rotor. The rotor is provided with an inner shaft hole, and mounting holes are provided on the side end surface of the rotor. Refer to Figures 1 to 3 As shown, the balance weight profiling structure for rotor magnetization includes a main body 1, a boss profiling block 2, and a positioning portion. Specifically, the boss profiling block 2 protrudes from the first side of the main body 1, and the boss profiling block 2 is provided with a support positioning surface for contacting the rotor magnetization device. The positioning portion is used for positioning and installing with the rotor. In this embodiment, the boss profiling block 2 is provided on the first side of the main body 1, so that the whole can form a replaceable profiling structure similar to the rotor balance weight. The boss profiling block 2 contacts the rotor magnetization device through the support positioning surface. In addition, the main body 1 is also provided with a positioning portion for positioning and installing with the rotor. When the profiling structure is assembled with the rotor, reliable positioning is achieved between the positioning portion and the rotor. This profiling structure is simple in structure, can be installed on the rotor during the magnetization process of the compressor rotor, and replaces the rotor balance weight, can achieve rapid positioning of the rotor without assembled rotor balance weight, and ensure the accuracy of the subsequent rotor magnetization orientation.

[0035] Specifically, the positioning portion includes a positioning post 3 provided on the second side of the main body. The positioning post 3 is used for plugging into the inner shaft hole. Specifically, when the profiling structure is assembled with the rotor, the positioning post 3 is correspondingly plugged into the inner shaft hole of the rotor to achieve axial positioning between the square structure and the rotor.

[0036] Specifically, the positioning portion includes a positioning pin 4 provided on the second side of the main body 1. The axis of the positioning pin 4 is parallel and non-overlapping with the axis of the rotor. The positioning pin 4 is used for plugging into the mounting hole. Specifically, the axis of the positioning pin 4 is parallel and non-overlapping with the axis of the positioning post 3. When the profiling structure is assembled with the rotor, while the positioning post 3 is plugged into the inner shaft hole of the rotor, the positioning pin 4 is correspondingly plugged into the mounting hole, which can cooperate with the positioning post to further realize the positioning of the rotor and prevent the rotor from rotating axially.

[0037] In some other feasible embodiments, the positioning post 3 can be cancelled, and at least two positioning pins 4 are used. Mounting holes corresponding to the positioning pins 4 are provided on the side end surface of the rotor. When the profiling structure is assembled with the rotor, the plurality of positioning pins 4 are respectively plugged into the corresponding mounting holes, which can also play a role in limiting the axis and rotation of the rotor at the same time.

[0038] In some other feasible embodiments, the positioning pin 4 is independently provided. The main body 1 is provided with a first mounting hole, and the side end surface of the rotor is provided with a second mounting hole. The positioning pin 4 passes through the first mounting hole and the second mounting hole and is fixedly plugged into the first mounting hole and the second mounting hole, which can also play a role in limiting the rotation of the rotor.

[0039] It is worth mentioning that the thickness of the profiling structure is adaptively adjusted according to actual needs, and is generally set to be thicker than that of a general rotor balance weight.

[0040] It is worth mentioning that the positioning surface of the rotor is correspondingly arranged with the end surface on the second side of the main body 1. The positioning surface of the rotor is the end surface that fits and contacts the second side of the main body 1, and is also the end surface where the mounting hole is opened.

[0041] In this embodiment, one or more avoidance holes 11 are further opened on the second side of the main body 1. The avoidance holes 11 are used to avoid the connecting members protruding from the rotor. By providing the avoidance holes 11, the connecting members protruding from the positioning surface of the rotor corresponding to the main body 1 can extend into the avoidance holes 11, avoiding interference with the installation of the profiling structure, and enabling the second side of the main body 1 to be reliably attached to the positioning surface of the rotor.

[0042] In this embodiment, a plurality of avoidance holes 11 are provided. The number and distribution positions of the avoidance holes 11 are adaptively adjusted according to the number and positions of the connecting members protruding from the positioning surface of the rotor, and are not limited too much here.

[0043] In this embodiment, the main body 1 is set to be cylindrical, and the convex platform profiling block 2 is arc-shaped. Specifically, the main body 1 and the convex platform profiling block 2 are coaxially arranged.

[0044] In this embodiment, the outer side wall of the convex platform profiling block 2 is flush with the outer side wall of the main body 1. With such a setting, the structure is simple, which is convenient for the overall processing and manufacturing of the profiling structure, and can effectively reflect the external shape characteristics of the rotor balance weight.

[0045] In this embodiment, a first chamfer 31 is provided at the edge of the end of the positioning post 3 facing away from the main body 1. The provision of the first chamfer 31 is suitable for providing a reliable insertion guide during the process of the positioning post 3 extending into the inner shaft hole of the rotor, ensuring that the positioning post 3 can be more reliably and smoothly inserted into the inner shaft hole of the positioning post 3. Even if the positioning post 3 and the inner shaft hole are not in a completely coaxial position, under the action of the first chamfer 31, the positioning post 3 can be smoothly guided to a coaxial position with the inner shaft hole.

[0046] In some other feasible embodiments, the edge of the end of the positioning post 3 facing away from the main body 1 can be replaced by a rounded corner structure instead of the first chamfer 31.

[0047] In some other feasible embodiments, the end of the positioning post 3 facing away from the main body 1 can be directly set to be spherical.

[0048] In this embodiment, a second chamfer 41 is provided at the edge of the end of the positioning pin 4 facing away from the main body 1. The provision of the second chamfer 41 is suitable for providing a reliable insertion guide during the process of the positioning pin 4 extending into the mounting hole of the rotor, ensuring that the positioning pin 4 can be inserted into the mounting hole more reliably and smoothly. Even if the positioning pin 4 and the mounting hole are not in a completely coaxial position, under the action of the second chamfer 41, the positioning pin 4 can be smoothly guided to a position coaxial with the mounting hole.

[0049] In some other feasible embodiments, the edge of the end of the positioning pin 4 facing away from the main body 1 can be replaced by a rounded corner structure instead of the second chamfer 41.

[0050] In some other feasible embodiments, the end of the positioning pin 4 facing away from the main body 1 can be directly set to a spherical shape.

[0051] In this embodiment, the convex platform profiling block 2 and the main body 1 are integrally formed. Since the structures of the convex platform profiling block 2 and the main body 1 are simple, the integral formation of the two can eliminate the process of separately assembling the convex platform profiling block 2 and the main body 1, and also avoid using external connecting parts such as screws and bolts for fixed connection.

[0052] As an alternative embodiment, the convex platform profiling block 2 and the main body 1 are integrally cast.

[0053] In some alternative embodiments, the convex platform profiling block 2 and the main body 1 are connected and fixed. Specifically, the connection and fixation between the convex platform profiling block 2 and the main body 1 means that the convex platform profiling block 2 and the main body 1 are separately processed and then combined and connected. Specifically, it can include two situations: using connecting parts and not using connecting parts. Optionally, when not using connecting parts, the convex platform profiling block 2 and the main body 1 can be welded and fixed. The welding connection method is fixed, reliable, and has a small labor intensity. Optionally, when using connecting parts, components such as screws and bolts can be selected, and holes are drilled in the convex platform profiling block 2 and the main body 1, which can also achieve the connection between the two, which is reliable, stable, and convenient for disassembly.

[0054] In this embodiment, the positioning post 3 and the main body 1 are integrally formed. Since the structures of the positioning post 3 and the main body 1 are simple, the integral formation of the two can eliminate the process of separately assembling the positioning post 3 and the main body 1, and also avoid using external connecting parts such as screws and bolts for fixed connection.

[0055] Optionally, the positioning post 3 and the main body 1 are integrally cast.

[0056] In some alternative embodiments, the positioning post 3 is fixedly connected to the main body 1. Specifically, the positioning post 3 is fixedly connected to the main body 1, that is, the positioning post 3 and the main body 1 are separately processed and then assembled and connected. Specifically, it can include two cases: using a connecting member and not using a connecting member. Optionally, when not using a connecting member, the positioning post 3 and the main body 1 can be fixedly connected by welding. The welding connection method is fixed, reliable and firm, and the labor intensity is small. Optionally, when using a connecting member, components such as screws and bolts can be selected, and holes are drilled in the positioning post 3 and the main body 1, and the connection between the two can also be achieved, which is reliable, stable and easy to disassemble.

[0057] In this embodiment, the positioning pin 4 and the main body 1 are integrally formed. Since the structures of the positioning pin 4 and the main body 1 are simple, the integral formation can save the process of separately assembling the positioning pin 4 and the main body 1, and also avoid using external connecting members such as screws and bolts for fixed connection.

[0058] Optionally, the positioning pin 4 and the main body 1 are integrally cast and formed.

[0059] In some alternative embodiments, the positioning pin 4 is fixedly connected to the main body 1. Specifically, the positioning pin 4 is fixedly connected to the main body 1, that is, the positioning pin 4 and the main body 1 are separately processed and then assembled and connected. Specifically, it can include two cases: using a connecting member and not using a connecting member. Optionally, when not using a connecting member, the positioning pin 4 and the main body 1 can be fixedly connected by welding. The welding connection method is fixed, reliable and firm, and the labor intensity is small. Optionally, when using a connecting member, components such as screws and bolts can be selected, and holes are drilled in the positioning pin 4 and the main body 1, and the connection between the two can also be achieved, which is reliable, stable and easy to disassemble.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A balancing block profiling structure for rotor magnetization, used for connecting a rotor, the rotor is provided with an inner shaft hole, and a mounting hole is provided on the side end surface of the rotor, characterized in that: The balancing block profiling structure for rotor magnetization comprises: Subject (1); A boss profiling block (2) protrudes from a first side of the main body (1), the boss profiling block (2) being provided with a supporting positioning surface for contacting with a rotor magnetizing device; The positioning part is installed to position the rotor.

2. The balancing block profiling structure for rotor magnetization according to claim 1 is characterized in that: The positioning portion comprises a positioning column (3) arranged on the second side of the main body (1), and the positioning column (3) is used to be plugged into the inner shaft hole.

3. The balancing block profiling structure for rotor magnetization according to claim 1 or 2, characterized in that: The positioning portion further comprises a positioning pin (4) arranged on the second side of the main body (1), the axis of the positioning pin (4) being parallel to and not overlapping the axis of the rotor, and the positioning pin (4) being used for plugging into the mounting hole.

4. The balancing block profiling structure for rotor magnetization according to claim 1 is characterized in that: The second side of the main body (1) is also provided with one or more avoidance holes (11), and the avoidance holes (11) are used to avoid the connecting pieces protruding from the rotor.

5. The balancing block profiling structure for rotor magnetization according to claim 1 is characterized in that: The main body (1) is configured to be cylindrical, and the boss profiling block (2) is arc-shaped.

6. The balancing block profiling structure for rotor magnetization according to claim 2 is characterized in that: The edge of one end of the positioning column (3) facing away from the main body (1) is provided with a first chamfer (31).

7. The balancing block profiling structure for rotor magnetization according to claim 3 is characterized in that: The edge of one end of the positioning pin (4) facing away from the main body (1) is provided with a second chamfer (41).

8. The balancing block profiling structure for rotor magnetization according to claim 1 is characterized in that: The boss profiling block (2) and the main body (1) are integrally formed; or the boss profiling block (2) and the main body (1) are connected and fixed.

9. The balancing block profiling structure for rotor magnetization according to claim 2 is characterized in that: The positioning column (3) and the main body (1) are integrally formed; or the positioning column (3) and the main body (1) are connected and fixed.

10. The balancing block profiling structure for rotor magnetization according to claim 3, characterized in that: The positioning pin (4) and the main body (1) are integrally formed; or the positioning pin (4) and the main body (1) are connected and fixed.

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