Water pump rotor structure

Abstract

The utility model discloses a water pump rotor structure, which belongs to the field of rotors and comprises a rotating shaft, an iron core, a magnet and a locking assembly. The magnets are arranged around the iron core, a plurality of mounting grooves are formed in the iron core, and the magnets are mounted in the mounting grooves; the locking assembly comprises a sleeve and an upper cover, the sleeve comprises a top piece and a barrel body connected with the edge of the top piece, the top piece and the upper cover are located at the two ends of the magnet respectively, a locking part for fastening the barrel body and the upper cover is arranged on the upper side of the barrel body, the two ends of the rotating shaft penetrate through the top piece and the upper cover respectively, and the top piece and the upper cover are arranged on the upper portion and the lower portion of the magnet respectively. The top piece and the upper cover tightly press the magnet through the locking part, so that the magnet is stabilized, and the magnet is pressed, so that the magnet does not need to be bonded in the mounting groove when being mounted, and can be directly inserted.

Description

Technical Field

[0001] The utility model relates to the technical field of rotors, in particular to a water pump rotor structure. Background Art

[0002] A water pump is also called a water pump. It is a machine that uses an electric motor, diesel engine, or hydraulic drive to pump water from a low place to a high place. During the operation of the water pump, a magnetic rotor needs to be installed inside the motor. The rotor includes a rotor core and a rotor shaft magnet.

[0003] The rotor core and the magnet are currently generally fixed by gluing, which is a complex and unreliable process. In an environment with strong vibration, debonding is likely to occur, causing the magnet to fall out axially or radially, posing a major problem for production control. There is also a method of blocking the end of the magnet by only fixing the baffle with rivets at the end of the rotor core. However, in order to facilitate the installation of the magnet on the rotor core by gluing, this structure requires the magnet to be installed on the side of the rotor core from the side. Therefore, generally no additional closed structure is made on the side of the rotor core. When debonding occurs, the magnet will still fall off from the side of the rotor core. Utility Model Content

[0004] The purpose of the utility model is to solve the problem of easy falling off of magnetic steel during debonding mentioned in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A water pump rotor structure, characterized in that it includes a rotating shaft, an iron core, a magnet and a locking assembly, the iron core is sleeved on the rotating shaft; the magnet is arranged around the iron core, and a plurality of mounting grooves are arranged on the iron core, and the magnet is installed in the mounting grooves; the locking assembly includes a sleeve and an upper cover, the sleeve includes a top piece and a cylinder connected to the edge of the top piece, the top piece and the upper cover are respectively located at two ends of the magnet, and a locking component for fastening the cylinder and the upper cover is arranged on the upper side of the cylinder, and the two ends of the rotating shaft respectively pass through the top piece and the upper cover, and the top piece and the upper cover are pressed against the magnet by the locking component to restrict the magnet, so that the magnet remains stable.

[0007] Preferably, the rotating shaft includes shaft rod 1 and shaft rod 2 connected to shaft rod 1 at both ends, the diameter of shaft rod 2 is smaller than shaft rod 1, shaft rod 1 is connected to the iron core, and the length of shaft rod 1 is greater than the axial length of the iron core.

[0008] Preferably, both ends of the shaft rod are provided with slots, and the top piece and the upper cover are provided with inserting blocks inserted into the slots, which is conducive to the circumferential fixation of the top piece and the upper cover to the rotating shaft.

[0009] Preferably, a plurality of grooves are provided at the upper end of the cylinder, and the upper cover has protrusions inserted into the grooves.

[0010] Preferably, the locking component includes a fixing part and a locking part rotating on the fixing part, the fixing part is fixedly connected to the bottom wall of the groove, the protrusion is provided with a through groove adapted to the fixing part, the locking part is located on the upper side of the protrusion, and after the locking part rotates, the upper cover is pressed to stabilize the magnet.

[0011] Preferably, a locking strip is connected to the shaft of the locking part, the upper surface of the locking strip is configured as an inclined surface, and a locking groove for inserting the locking strip is provided in the fixing part, and the locking groove is used for the locking part to fit tightly against the upper cover.

[0012] Preferably, a rotation groove is formed on the top surface of the locking portion.

[0013] Preferably, a circular support plate is connected to the bottom end of the iron core, and the edge of the support plate is located within the range of the mounting groove, so that the support plate is convenient for mounting the magnet.

[0014] Preferably, the top piece includes an annular portion and a receiving groove for receiving the support plate.

[0015] Preferably, the upper cover is provided with bosses corresponding to the magnets, and all the bosses form recessed portions that match the iron core.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] A top piece and an upper cover are respectively arranged above and below the magnet, and the top piece and the upper cover are pressed against the magnet by a locking component, so as to stabilize the magnet. Since the magnet is pressed, the magnet does not need to be bonded into the installation groove when it is installed, and can be directly inserted;

[0018] The sleeve and the upper cover are connected together by rotating multiple locking parts and pressing the upper cover at the same time. The arrangement of multiple locking parts increases the stability of the upper cover and also makes the pressure of the upper cover uniform. The overall structure is simple and easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the structural explosion of the utility model.

[0022] Figure 3It is a schematic diagram of the upper cover and the iron core of the utility model.

[0023] Figure 4 It is a schematic diagram of the sleeve of the utility model.

[0024] Figure 5 It is a schematic diagram of the locking component of the utility model.

[0025] Figure 6 It is a schematic diagram of the locking strip of the utility model being located in the locking groove.

[0026] Figure 7 It is a schematic diagram of the rotating shaft of the utility model.

[0027] Explanation of the figure numbers: 1. rotating shaft; 11. shaft rod 1; 12. shaft rod 2; 13. slot; 2. iron core; 21. mounting slot; 22. limit plate; 23. support plate; 3. magnet; 4. locking assembly; 41. sleeve; 411. top piece; 4111. annular portion; 4112. receiving groove; 412. cylinder; 413. groove; 42. upper cover; 421. boss; 422. recessed portion; 423. convex block; 424. through groove; 43. locking component; 431. fixing portion; 432. locking portion; 433. rotating groove; 434. locking strip; 435. inclined surface; 436. locking groove; 44. plug. DETAILED DESCRIPTION

[0028] The utility model is described in further detail below in conjunction with the accompanying drawings.

[0029] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be used for other implementation schemes, variations, improvements, equivalent schemes, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0030] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0031] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0032] See also Figure 1-Figure 7 A water pump rotor structure includes a rotating shaft 1, an iron core 2, a magnet 3 and a locking assembly 4. The iron core 2 is sleeved on the rotating shaft 1, and an axial hole for inserting the rotating shaft 1 is opened on the iron core 2; the magnet 3 is arranged around the iron core 2, and a plurality of mounting grooves 21 are arranged on the iron core 2. The magnet 3 is installed in the mounting groove 21. A limiting plate 22 is arranged on the outer side of the mounting groove 21. The limiting plate 22 prevents the magnet 3 from radially detaching. A circular support plate 23 is connected to the bottom end of the iron core 2. The edge of the support plate 23 is located within the range of the mounting groove 21. The support plate 23 supports the magnet 3 from the bottom, which is convenient for installing the magnet 3.

[0033] The locking assembly 4 includes a sleeve 41 and an upper cover 42. The sleeve 41 includes a top piece 411 and a cylinder 412 connected to the edge of the top piece 411. The cylinder 412 is sleeved on the periphery of the iron core 2. The cylinder 412 can also prevent the magnet 3 from radially detaching. The top piece 411 and the upper cover 42 are respectively located at both ends of the magnet 3. A locking component 43 is provided on the upper side of the top cylinder 412 to fasten the cylinder 412 and the upper cover 42. The top piece 411 includes an annular portion 4111 and a receiving groove 4112 for receiving the support plate 23. The support plate 23 is located in the receiving groove 4112. The annular portion 4111 and the support plate 23 cooperate to fully cover the magnet 3 for easy Tighten, the locking component 43 makes the top piece 411 and the upper cover 42 close to each other, so as to press the two ends of the magnet 3 to prevent it from axial separation. The magnetic steel does not need to be bonded to the installation groove 21 by gluing. The two ends of the rotating shaft 1 respectively pass through the top piece 411 and the upper cover 42. The upper cover 42 is provided with bosses 421 corresponding to the magnet 3. All bosses 421 form a recessed portion 422 that matches the iron core 2. The upper end surface of the iron core 2 is higher than the upper end surface of the magnet 3. When the locking component 43 is tightened, the high part of the iron core 2 is located in the recessed portion 422, and the upper cover 42 can be fixed to the iron core 2 in the circumferential direction through the boss 421.

[0034] The rotating shaft 1 includes a shaft rod 11 and a shaft rod 2 12 connected to both ends of the shaft rod 11. The diameter of the shaft rod 2 12 is smaller than that of the shaft rod 11. The shaft rod 11 is connected to the iron core 2. The length of the shaft rod 11 is greater than the axial length of the iron core 2. Slots 13 are provided at both ends of the shaft rod 11. Insert blocks 44 inserted into the slots 13 are provided on the top piece 411 and the upper cover 42. The sleeve 41 and the upper cover 42 are fixed to the rotating shaft 1 in the circumferential direction. A plurality of grooves 413 are provided on the upper end of the cylinder 412. The upper cover 42 has protrusions 423 inserted into the grooves 413. The upper cover 42 is fixed to the sleeve 41 in the circumferential direction to increase stability.

[0035] The locking member 43 includes a fixing portion 431 and a locking portion 432 that rotates on the fixing portion 431. A rotation groove 433 is provided on the top surface of the locking portion 432. The rotation groove 433 can be hexagonal or cross-shaped. In this application, a hexagonal shape is taken as an example. The fixing portion 431 is fixedly connected to the bottom wall of the groove 413. A through groove 424 that is adapted to the fixing portion 431 is provided on the protrusion 423. The through groove 424 should be passed through by the locking member 43. When the locking portion 432 is adjusted to the same state as the fixing portion 431, the locking member 43 passes through the through groove 424, and then the locking portion 432 is rotated to form an angle with the fixing portion 431. , as in this case, the fixing part 431 and the locking part 432 are in a cross shape, the locking part 432 is located on the upper side of the protrusion 423, the shaft of the locking part 432 is connected with a locking strip 434, the locking strip 434 is symmetrically arranged, the upper surface of the locking strip 434 is arranged as an inclined surface 435, the fixing part 431 is provided with a locking groove 436 for the locking strip 434 to be inserted, the upper top surface of the locking groove 436 is also an inclined surface 435, the locking strip 434 is pressed by the upper top surface of the locking groove 436 to limit the locking part 432, the circumferential length of the locking groove 436 is greater than the locking strip 434, so that the locking strip 434 has enough distance to be inserted. There are multiple protrusions 423, so there are also multiple locking parts 43, and multiple locking parts 432 press the upper cover 42 at the same time, which increases stability and makes the pressure uniform.

[0036] In summary, the magnet is installed in the installation groove 21, the shaft 1 is installed, and then the sleeve 41 is installed from the bottom of the core 2. The plug 44 on the top piece 411 is inserted into the slot 13, and then the upper cover 42 is inserted from the upper side of the core 2. Before the protrusion 423 falls into the groove 413, the locking part 432 is adjusted to the same state as the fixed state, the through groove 424 is aligned with the locking part 43, and the protrusion 423 falls into the groove 413, and the plug 44 is inserted into the Slot 13, and finally the locking portion 432 rotates to form an angle with the fixing portion 431, and the locking portion 432 is moved to a position where it cannot rotate. When the locking portion 432 rotates, the locking strip 434 is inserted into the locking groove 436, and the locking groove 436 applies a downward force to the locking strip 434, so that the locking portion 432 is tightly attached to the upper surface of the upper cover 42, thereby pressing the upper cover 42. The disassembly and installation of the locking assembly 4 is relatively convenient, and it is convenient to inspect and maintain the iron core 2 and the magnet 3.

[0037] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed or modified in any way.

Claims

1. A water pump rotor structure, characterized in that: include: Axis (1); An iron core (2) sleeved on the rotating shaft (1); A magnet (3) arranged around the iron core (2), wherein the iron core (2) is provided with a plurality of mounting grooves (21), and the magnet (3) is installed in the mounting grooves (21); A locking assembly (4) comprising a sleeve (41) and an upper cover (42); the sleeve (41) comprising a top piece (411) and a cylinder (412) connected to the edge of the top piece (411); the top piece (411) and the upper cover (42) are respectively located at two ends of the magnet (3); a locking component (43) for fastening the cylinder (412) and the upper cover (42) is provided on the upper side of the cylinder (412); and the two ends of the rotating shaft (1) respectively penetrate the top piece (411) and the upper cover (42).

2. A water pump rotor structure according to claim 1, characterized in that: The rotating shaft (1) comprises a shaft rod (11) and a shaft rod (12) connected to both ends of the shaft rod (11); the diameter of the shaft rod (12) is smaller than that of the shaft rod (11); the shaft rod (11) is connected to the iron core (2); and the length of the shaft rod (11) is greater than the axial length of the iron core (2).

3. A water pump rotor structure according to claim 2, characterized in that: Slots (13) are provided at both ends of the shaft rod (11), and insert blocks (44) inserted into the slots (13) are provided on the top piece (411) and the upper cover (42).

4. A water pump rotor structure according to claim 3, characterized in that: The upper end of the cylinder (412) is provided with a plurality of grooves (413), and the upper cover (42) is provided with protrusions (423) inserted into the grooves (413).

5. A water pump rotor structure according to claim 4, characterized in that: The locking component (43) comprises a fixing portion (431) and a locking portion (432) rotatable on the fixing portion (431); the fixing portion (431) is fixedly connected to the bottom wall of the groove (413); a through groove (424) matching the fixing portion (431) is provided on the protrusion (423); and the locking portion (432) is located on the upper side of the protrusion (423).

6. A water pump rotor structure according to claim 5, characterized in that: A locking strip (434) is connected to the shaft of the locking portion (432), the upper surface of the locking strip (434) is arranged as an inclined surface (435), and a locking groove (436) for inserting the locking strip (434) is provided in the fixing portion (431).

7. A water pump rotor structure according to claim 5, characterized in that: A rotation groove (433) is formed on the top surface of the locking portion (432).

8. A water pump rotor structure according to claim 1, characterized in that: A circular support plate (23) is connected to the bottom end of the iron core (2), and an edge of the support plate (23) is located within the range of the mounting groove (21).

9. A water pump rotor structure according to claim 8, characterized in that: The top member (411) comprises an annular portion (4111) and a receiving groove (4112) for receiving the support plate (23).

10. A water pump rotor structure according to claim 1, characterized in that: The upper cover (42) is provided with bosses (421) corresponding to the magnets (3), and all the bosses (421) form recessed portions (422) that are adapted to the iron core (2).

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