Dual anti-leaping motor

Abstract

The utility model provides a dual anti-leaping motor, which is characterized in that a rotor and a rotor shaft which are easy to leaping in the motor are improved, and a rotor shaft anti-leaping assembly is arranged at at least one end of a lower casing, so that the axial leaping of the rotor shaft when the rotor shaft rotates at the upper end and the lower end of the lower casing can be reduced; on the basis, a gap still exists between the rotor and the lower machine shell and / or the rotor shaft anti-leaping assembly, so that the rotor still moves axially, leaping of the rotor shaft is aggravated, through arrangement of the rotor anti-leaping assembly, the two gaps are filled, and axial leaping of the rotor during rotation is reduced; and after the rotor and the rotor shaft are subjected to anti-leaping limitation, the stability of the whole motor is higher.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a dual anti-slip motor. Background Art

[0002] In high-pressure washing pumps, the motor is often used to drive the internal impeller to rotate, and the high-speed rotation of the impeller drives the water in the liquid storage chamber of the high-pressure washing pump to be sprayed out.

[0003] When existing motors operate in high-pressure washing pumps, their rotor shafts exhibit significant axial movement, causing the impeller connected to the rotor shaft to also move axially, resulting in reduced water spraying efficiency. How to reduce the axial movement of the motor rotor shaft within the high-pressure washing pump and improve its stability is a problem that technicians are dedicated to solving. Utility Model Content

[0004] The problem this invention aims to solve is to provide a motor with less rotor shaft movement and higher stability.

[0005] The technical solution adopted by this utility model to solve the above problems is: a dual anti-jamming motor, comprising:

[0006] First, the casing;

[0007] One rotor;

[0008] A stator, wherein the stator is disposed within the lower housing;

[0009] A rotor shaft anti-migration assembly, wherein the rotor shaft anti-migration assembly is disposed at at least one end of the lower housing.

[0010] A rotor shaft, wherein the rotor shaft is disposed at the upper and lower ends of the lower housing via a rotor shaft anti-migration assembly to prevent axial movement of the rotor shaft within the lower housing; the rotor is disposed within the stator via the rotor shaft so that the stator drives the rotor to rotate; and

[0011] A rotor anti-migration assembly, wherein the rotor anti-migration assembly is disposed at both ends of the rotor to fill the gap between the rotor and the lower housing and / or between the rotor and the rotor shaft anti-migration assembly, so as to prevent the rotor from axially moving.

[0012] Compared with the prior art, this utility model improves the rotor and rotor shaft of the motor, which are prone to axial movement. The rotor shaft anti-movement component is set at at least one end of the lower housing, which can prevent the rotor shaft from axially moving when rotating at the upper and lower ends of the lower housing. On this basis, there are still gaps between the rotor and the lower housing and / or the rotor shaft anti-movement component, which can cause the rotor to still move axially, thereby aggravating the movement of the rotor shaft. By setting the rotor anti-movement component, the aforementioned two gaps are filled, thereby preventing the axial movement of the rotor when it rotates. After both the rotor and the rotor shaft are restricted from moving axially, the stability of the entire motor is higher.

[0013] The present invention relates to a dual anti-rotation motor, wherein the lower housing includes a housing and an upper end cover and a lower end cover respectively disposed at the upper and lower ends of the housing; the rotor shaft anti-rotation component is disposed at at least one of the upper end cover and the lower end cover.

[0014] This utility model discloses a dual anti-slip motor, wherein the upper end cover includes a first concave shell formed towards the housing; the lower end cover includes a second concave shell formed away from the housing; the rotor shaft anti-slip assembly includes a ball bearing and an oil-impregnated bearing; the ball bearing is disposed in the second concave shell; and the oil-impregnated bearing is disposed in the first concave shell.

[0015] This utility model discloses a dual anti-jamming motor, wherein the outer ring of the ball bearing is configured to fit tightly with the second concave shell; the inner ring of the ball bearing is configured to fit tightly with the lower end of the rotor shaft; the outer wall of the oil-impregnated bearing is configured to fit tightly with the first concave shell; and the upper end of the rotor shaft is rotatably connected to the oil-impregnated bearing.

[0016] This utility model discloses a dual anti-slip motor, wherein the rotor anti-slip component includes a first gap-filling part and a second gap-filling part; the first gap-filling part is disposed between the rotor and the ball bearing; the second gap-filling part is disposed between the rotor and the first concave shell.

[0017] This utility model discloses a dual anti-jamming motor, wherein the first filling part is configured as a circular hard retaining ring; the upper end face of the first filling part abuts against the lower end face of the rotor, and the lower end face of the first filling part abuts against the upper end face of the inner ring of the ball bearing; the second filling part is configured as a circular soft pad; the upper end face of the second filling part is configured to contact the lower end face of the first concave shell, and the lower end face of the second filling part is configured to contact the upper end face abutting against the rotor.

[0018] The present invention provides a dual anti-jamming motor, which further includes:

[0019] An upper housing; wherein the upper housing is disposed at the upper end of the lower housing; and

[0020] An electronic control unit; wherein the electronic control unit is disposed within the upper housing. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the present invention from the main perspective;

[0022] Figure 2 This is an enlarged schematic diagram of a partial structure of the present invention;

[0023] Figure 3 This is a three-dimensional cross-sectional view of the present invention.

[0024] Figure 4 A three-dimensional schematic diagram of the rotor, rotor shaft, and rotor anti-movement assembly;

[0025] Figure 5 It is a three-dimensional schematic diagram of the present utility model. DETAILED DESCRIPTION

[0026] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0027] Furthermore, firstly, in the disclosure of this utility model, the terms "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, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0028] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely 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 shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

[0029] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0030] Please see Figure 1-5 The illustrated dual anti-migration motor includes a lower housing 1, a rotor 2, a stator 3, a rotor shaft anti-migration assembly 4, a rotor shaft 5, and a rotor anti-migration assembly 6. The stator 3 is housed within the lower housing 1. The rotor shaft anti-migration assembly 4 is located at at least one end of the lower housing 1. The rotor shaft 5 is connected to the upper and lower ends of the lower housing 1 via the rotor shaft anti-migration assembly 4 to prevent axial movement of the rotor shaft 5 within the lower housing 1. The rotor 2 is housed within the stator 3 via the rotor shaft 5, allowing the stator 3 to drive the rotor 2 to rotate. The rotor anti-migration assembly 6 is located at both ends of the rotor 2 to fill the gaps between the rotor 2 and the lower housing 1 and / or between the rotor 2 and the rotor shaft anti-migration assembly 4, thereby preventing axial movement of the rotor 2.

[0031] In practical use, this invention improves upon the rotor 2 and rotor shaft 5, which are prone to axial movement in the motor. The rotor shaft anti-axial movement component 4 is installed at at least one end of the lower housing 1, which can prevent the rotor shaft 5 from axially moving when rotating at the upper and lower ends of the lower housing 1. Based on the above, there is still a gap between the rotor 2 and the lower housing 1 and / or the rotor shaft anti-axial movement component 4, which causes the rotor 2 to still move axially, thereby aggravating the movement of the rotor shaft 5. By installing the rotor anti-axial movement component 6, the aforementioned two gaps are filled, thereby preventing the axial movement of the rotor 2 when rotating. After both the rotor 2 and the rotor shaft 5 are restricted from axial movement, the stability of the entire motor is higher.

[0032] Please continue reading. Figure 1 , Figure 2 , Figure 3 The lower housing 1 includes a housing 11 and an upper end cover 12 and a lower end cover 13 respectively disposed at the upper and lower ends of the housing 11; the rotor shaft anti-movement assembly 4 is disposed at least at one of the upper end cover 12 and the lower end cover 13.

[0033] It is understandable that when the rotor shaft anti-runaway component 4 is installed at least at one of the upper end cover 12 and the lower end cover 13, it can cooperate with the rotor shaft 5 to reduce the axial runaway of the rotor shaft 5. In some operating conditions requiring high stability motors, the rotor shaft anti-runaway component 4 can be installed at both locations to further reduce the runaway of the rotor shaft 5.

[0034] Please continue reading. Figure 1 , Figure 2 , Figure 3 The upper end cover 12 includes a first concave shell 121 formed toward the housing 11; the lower end cover 13 includes a second concave shell 131 formed away from the housing 11; the rotor shaft anti-movement assembly 4 includes a ball bearing 41 and an oil-impregnated bearing 42; the ball bearing 41 is disposed in the second concave shell 131; and the oil-impregnated bearing 42 is disposed in the first concave shell 121.

[0035] Specifically, the first concave shell 121 is formed by the upper end cover 12, and the second concave shell 131 is formed by the lower end cover 13. Neither of them is set independently. This setting reduces the cost of producing the concave shell independently and avoids the installation process of the concave shell, making the overall manufacturing cost of the motor lower. In addition, the one-piece molded concave shell can avoid loosening caused by motor vibration and provides a basis for the subsequent setting of the rotor anti-motor movement component 6.

[0036] Please continue reading. Figure 1 , Figure 2 , Figure 3 The outer ring of the ball bearing 41 is configured to fit tightly with the second concave shell 131; the inner ring of the ball bearing 41 is configured to fit tightly with the lower end of the rotor shaft 5; the outer wall of the oil-impregnated bearing 42 is configured to fit tightly with the first concave shell 121; and the upper end of the rotor shaft 5 is rotatably connected to the oil-impregnated bearing 42.

[0037] Specifically, in this embodiment, the outer ring of the ball bearing 41 is tightly fitted with the second concave shell 131 and fixed in place, while the inner ring of the ball bearing 41 is tightly fitted with the outer wall of the rotor shaft 5. When the rotor shaft 5 rotates, the inner and outer rings of the ball bearing 41 can only rotate relative to each other and cannot move up and down, thus restricting the up and down movement of the rotor shaft 5. The oil-impregnated bearing 42 is tightly fitted with the inner wall of the first concave shell 121. When the rotor shaft 5 rotates, its upper end rotates within the oil-impregnated bearing 42. Since one end of the rotor shaft 5 is already equipped with a ball bearing 41, which has already served the function of preventing the rotor shaft 5 from moving up and down, setting the other end as the lower-cost oil-impregnated bearing 42 is a lower-cost choice compared to the entire motor.

[0038] It is understandable that when the motor power is large and the speed is high, the oil-impregnated bearing 42 at the other end of the rotor shaft 5 can be replaced with a ball bearing 41.

[0039] Please continue reading. Figure 1 , Figure 2 , Figure 3 The rotor anti-slip assembly 6 includes a first gap-filling part 61 and a second gap-filling part 62; the first gap-filling part 61 is disposed between the rotor 2 and the ball bearing 41; the second gap-filling part 62 is disposed between the rotor 2 and the first concave shell 121.

[0040] In some embodiments, the first filling portion 61 is configured as an annular hard retaining ring; the upper end face of the first filling portion 61 abuts against the lower end face of the rotor 2, and the lower end face of the first filling portion 61 abuts against the upper end face of the inner ring of the ball bearing 41; the second filling portion 62 is configured as a circular soft pad; the upper end face of the second filling portion 62 is configured to contact the lower end face of the first concave shell 121, and the lower end face of the second filling portion 62 is configured to contact the upper end face of the rotor 2.

[0041] It is understandable that, since the lower end of the rotor shaft 5 is equipped with a ball bearing 41, and the inner ring of the ball bearing 41 rotates synchronously with the rotor shaft 5, it is preferable to set the first gap-filling part 61 as a circular hard retaining ring. The circular hard retaining ring can abut against the lower end face of the rotor 2 and the upper end face of the inner ring of the ball bearing 41 to fill the gap, and can also rotate with the two without affecting the transmission between them. The upper end of the rotor shaft 5 is equipped with an oil-impregnated bearing 42, and the oil-impregnated bearing 42 is set inside the first concave shell 121. That is, when the rotor 2 rotates, its upper end face may rub against the bottom wall of the first concave shell 121, resulting in a decrease in motor efficiency. When a circular soft gasket is provided in this gap, the soft gasket can reduce the friction with the rotor 2 or the bottom wall of the first concave shell 121 by adding lubricant or using an oil-free self-lubricating material, so that the gap is filled without affecting the efficiency of the motor.

[0042] Please continue reading. Figure 4 , Figure 5 The device further includes an upper housing 7 and an electronic control unit 8; wherein the upper housing 7 is disposed on the upper end of the lower housing 1; and wherein the electronic control unit 8 is disposed inside the upper housing 7.

[0043] Understandably, the electrical control unit 8 is used to provide electrical control for the rotor 2 and stator 3; the upper housing 7 is used to protect the electrical control unit 8; in addition, the upper housing 7 and the lower housing 1 together cover the entire motor, providing better shielding for the motor.

[0044] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A dual anti-jamming motor, characterized in that, include: The casing (1); One rotor (2); A stator (3), wherein the stator (3) is disposed within the lower housing (1); A rotor shaft anti-move assembly (4), wherein the rotor shaft anti-move assembly (4) is disposed at at least one end of the lower housing (1). A rotor shaft (5), wherein the rotor shaft (5) is disposed at the upper and lower ends of the lower housing (1) via the rotor shaft anti-migration assembly (4) to prevent the rotor shaft (5) from axially moving within the lower housing (1); a rotor (2) is disposed within the stator (3) via the rotor shaft (5) so that the stator (3) drives the rotor (2) to rotate; and A rotor anti-slip assembly (6) is provided at both ends of the rotor (2) to fill the gap between the rotor (2) and the lower housing (1) and / or between the rotor (2) and the rotor shaft anti-slip assembly (4) in order to prevent the rotor (2) from axially slipping.

2. The dual anti-jamming motor according to claim 1, characterized in that: The lower housing (1) includes a housing (11) and an upper end cover (12) and a lower end cover (13) respectively disposed at the upper and lower ends of the housing (11); the rotor shaft anti-movement assembly (4) is disposed at at least one of the upper end cover (12) and the lower end cover (13).

3. The dual anti-jamming motor according to claim 2, characterized in that: The upper end cover (12) includes a first concave shell (121) formed toward the housing (11); the lower end cover (13) includes a second concave shell (131) formed away from the housing (11); the rotor shaft anti-move assembly (4) includes a ball bearing (41) and an oil-impregnated bearing (42); the ball bearing (41) is disposed in the second concave shell (131); the oil-impregnated bearing (42) is disposed in the first concave shell (121).

4. The dual anti-jamming motor according to claim 3, characterized in that: The outer ring of the ball bearing (41) is configured to fit tightly with the second concave shell (131); the inner ring of the ball bearing (41) is configured to fit tightly with the lower end of the rotor shaft (5); the outer wall of the oil-impregnated bearing (42) is configured to fit tightly with the first concave shell (121); the upper end of the rotor shaft (5) is rotatably connected to the oil-impregnated bearing (42).

5. The dual anti-jamming motor according to claim 3, characterized in that: The rotor anti-slip assembly (6) includes a first gap-filling part (61) and a second gap-filling part (62); the first gap-filling part (61) is disposed between the rotor (2) and the ball bearing (41); the second gap-filling part (62) is disposed between the rotor (2) and the first concave shell (121).

6. The dual anti-jamming motor according to claim 5, characterized in that: The first filling part (61) is configured as a circular hard retaining ring; the upper end face of the first filling part (61) abuts against the lower end face of the rotor (2), and the lower end face of the first filling part (61) abuts against the upper end face of the inner ring of the ball bearing (41); the second filling part (62) is configured as a circular soft gasket; the upper end face of the second filling part (62) is configured to contact the lower end face of the first concave shell (121), and the lower end face of the second filling part (62) is configured to contact the upper end face of the rotor (2).

7. The dual anti-jamming motor according to claim 1, characterized in that, Further includes: An upper housing (7); wherein the upper housing (7) is disposed on the upper end of the lower housing (1); as well as One electrical control unit (8); The electronic control unit (8) is located inside the upper housing (7).

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