Axial pushing device for direct current motor bearing
By setting a slope on the support tube and flange of the axial pushing device of the motor, and using magnetic ring, carbon ring and double top wire assemblies, the problem of insufficient structural strength in the prior art is solved, and the Stable operation and extended service life.
Patent Information
- Application Number
- CN202420835881.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing motor axial pushing device cannot withstand high pressure due to poor structural strength in high lift occasions, resulting in severe deformation and affecting the service life of the motor.
An axial pushing device including a rotating shaft, a stator assembly, a rotor assembly, a balance disc assembly and a rear bearing seat is designed, and a first inclined surface is provided on the support pipe and a second inclined surface is arranged to make it parallel to increase the support. The structural strength and bearing capacity of the tubes are improved by connecting stability through magnetic ring, carbon ring and double top wire assemblies.
Effectively disperse stress, ensure that the motor maintains a stable operating state during high lift occasions and extends its service life.
Smart Images
Figure CN222262372U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of DC motors, in particular to an axial driving device for a DC motor bearing. Background Art
[0002] At present, existing motors can only be used in low-head applications (pump outlet pressure is 80Bar). When used in high-head applications, the pump outlet pressure needs to reach 120Bar. Under high-head conditions, the pump needs to generate greater thrust to overcome the gravity of the water and push the water to a higher position. This high pressure load directly acts on the axial propulsion device of the motor, causing the device to be subjected to huge stress.
[0003] The applicant has found that the prior art has at least the following technical problems:
[0004] The existing motor's axial propulsion device has design defects. When used in high-lift situations, it cannot withstand high pressure due to its poor structural strength and will be severely deformed, thus affecting the motor's service life.
[0005] In view of this, the present utility model is proposed. Utility Model Content
[0006] The purpose of the utility model is to provide an axial propulsion device for a DC motor bearing, so as to solve the technical problem that the existing axial propulsion device for a motor in the prior art has design defects and cannot withstand high pressure when used in high-lift occasions, resulting in serious deformation and affecting the service life of the motor. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] The utility model provides an axial pushing device for a DC motor bearing, comprising a rotating shaft, a stator assembly, a rotor assembly, a balancing disc assembly and a rear bearing seat, wherein the stator assembly, the rotor assembly, the balancing disc assembly and the rear bearing seat are sequentially sleeved on the rotating shaft, a support tube of the rotor assembly has a first inclined surface, a flange of the stator assembly is provided with a second inclined surface at a position corresponding to the support tube, and the first inclined surface is provided in parallel with the second inclined surface.
[0009] Preferably, the balancing plate assembly comprises an upper balancing plate, and a carbon ring is provided at one end of the upper balancing plate close to the support tube, and the upper balancing plate and the carbon ring are connected by pins.
[0010] Preferably, the rotor assembly further comprises a magnetic ring, one end of the magnetic ring is connected to the carbon ring, and the other end of the magnetic ring is connected to the support tube.
[0011] Preferably, a groove is formed on the working surface of the carbon ring, and the groove extends in its radial direction.
[0012] Preferably, the number of pores on the working surface of the magnetic ring is no more than ten.
[0013] Preferably, the thickness of the magnetic ring is 7 mm, the inner diameter of the magnetic ring is 25 mm, and the outer diameter of the magnetic ring is 56 mm; the thickness of the carbon ring is 7 mm, the inner diameter of the magnetic ring is 24 mm, and the outer diameter of the magnetic ring is 56 mm.
[0014] Preferably, the thickness of the support tube is 7.8 mm.
[0015] Preferably, the balancing disc assembly further comprises a lower balancing disc, and the rear bearing seat is connected to the lower balancing disc via a double top screw assembly.
[0016] Preferably, the thickness of the upper balancing plate is 9.5 mm, and the inner diameter of the upper balancing plate is 25 mm; the outer diameter of the upper balancing plate is 56 mm; the thickness of the lower balancing plate is 9.5 mm, and the inner diameter of the lower balancing plate is 25 mm, and the outer diameter of the lower balancing plate is 56 mm.
[0017] Preferably, the rear bearing seat and the flange are connected by at least four screws.
[0018] The preferred technical solution of the utility model can also produce at least the following technical effects:
[0019] The utility model effectively avoids the technical problem that the design of the existing axial propulsion device of the motor in the prior art has defects, and when applied to high-lift occasions, due to its poor structural strength, it cannot withstand high pressure, and will be severely deformed, which affects the service life of the motor. The utility model provides an axial propulsion device for a DC motor bearing, including a rotating shaft, a stator assembly, a rotor assembly, a balancing disc assembly and a rear bearing seat, the stator assembly, the rotor assembly, the balancing disc assembly and the rear bearing seat are sequentially sleeved on the rotating shaft, the support tube of the rotor assembly has a first inclined surface, the flange of the stator assembly and the corresponding position of the support tube are provided with a second inclined surface, and the first inclined surface is arranged in parallel with the second inclined surface. The utility model increases the structural strength and bearing capacity of the support tube by arranging the first inclined surface on the support tube, and when the support tube is subjected to axial pressure, the first inclined surface can better disperse the stress, so that the motor can maintain a stable operating state when applied in high-lift occasions. The flange is provided with a second inclined surface, and the first inclined surface and the second inclined surface are arranged oppositely and in parallel, so that there is a certain misalignment between the support tube and the flange in the radial direction, thereby saving more space. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 This is a structural schematic diagram of an axial driving device for a DC motor bearing provided by the utility model;
[0022] Figure 2 This is a schematic structural diagram of a rotor assembly of an axial propulsion device for a DC motor bearing provided by the utility model;
[0023] Figure 3 This is a structural schematic diagram of an upper balancing disc and a carbon ring of an axial driving device for a DC motor bearing provided by the utility model;
[0024] Figure 4 It is a structural schematic diagram of a flange of an axial driving device for a DC motor bearing provided by the utility model;
[0025] Figure 5 The utility model is a structural schematic diagram of a rear bearing seat of an axial driving device for a DC motor bearing provided by the utility model.
[0026] In the figure:
[0027] 1. Rotating shaft; 2. Stator assembly; 21. Flange; 211. Second inclined surface; 212. Flange connecting hole; 3. Rotor assembly; 31. Support tube; 311. First inclined surface; 32. Magnetic ring; 33. Fixed ring; 4. Upper balancing plate; 5. Lower balancing plate; 6. Carbon ring; 61. Groove; 7. First top screw; 8. Second top screw; 9. Screw; 10. Rear bearing seat; 101. First connecting hole; 102. Second connecting hole; 11. Pin. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. 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 implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0029] like Figure 1-5As shown, the utility model provides an axial pushing device for a DC motor bearing, comprising a rotating shaft 1, a stator assembly 2, a rotor assembly 3, a balancing disc assembly and a rear bearing seat 10, wherein the stator assembly 2, the rotor assembly 3, the balancing disc assembly and the rear bearing seat 10 are sequentially sleeved on the rotating shaft 1, the support tube 31 of the rotor assembly 3 has a first inclined surface 311, and a second inclined surface 211 is arranged at a corresponding position of the flange 21 of the stator assembly 2 and the support tube 31, and the first inclined surface 311 is arranged parallel to the second inclined surface 211.
[0030] The utility model increases the structural strength and bearing capacity of the support tube 31 by setting a first inclined surface 311 on the support tube 31. When the support tube 31 is subjected to axial pressure, the first inclined surface 311 can better disperse the stress, so that the motor can maintain a stable operating state when used in high-lift occasions. The flange 21 is provided with a second inclined surface 211, and the first inclined surface 311 and the second inclined surface 211 are arranged oppositely and in parallel, so that the support tube 31 and the flange 21 have a certain misalignment in the radial direction, thereby saving more space.
[0031] As an optional implementation, Figure 1 , 3 As shown, the balancing disc assembly includes an upper balancing disc 4 , and a carbon ring 6 is provided at one end of the upper balancing disc 4 close to the support tube 31 . The upper balancing disc 4 and the carbon ring 6 are connected by a pin 11 .
[0032] Furthermore, glue is coated on the contact surface between the upper balancing plate 4 and the carbon ring 6 to further enhance the connection strength between the upper balancing plate 4 and the carbon ring 6 and provide higher stability.
[0033] As an optional implementation, Figure 1 , 2 As shown, the rotor assembly 3 further includes a magnetic ring 32 , one end of the magnetic ring 32 is connected to the carbon ring 6 , and the other end is connected to the support tube 31 .
[0034] Furthermore, a fixing ring 33 is provided on the outside of the magnetic ring 32 and the support tube 31 to improve the stability and reliability of the connection between the magnetic ring 32 and the support tube 31 .
[0035] As an optional implementation, the thickness of the magnetic ring 32 is 7 mm, the inner diameter of the magnetic ring 32 is 25 mm, the outer diameter of the magnetic ring 32 is 56 mm, the thickness of the carbon ring 6 is 7 mm, the inner diameter of the magnetic ring 32 is 24 mm, and the outer diameter of the magnetic ring 32 is 56 mm. This arrangement greatly increases the contact area between the magnetic ring 32 and the carbon ring 6, can disperse and withstand greater axial pressure, so that the motor can maintain a stable operating state when used in high-lift applications.
[0036] As an optional implementation, Figure 3As shown, the working surface of the carbon ring 6 is provided with a groove 61, and the groove 61 extends along its radial direction.
[0037] As an optional implementation, the number of pores on the working surface of the magnetic ring 32 is no more than ten, so as to ensure the magnetic performance, structural integrity and structural strength of the magnetic ring 32 .
[0038] As an optional implementation, the thickness of the support tube 31 is 7.8 mm. Increasing the thickness of the support tube 31 can improve the bearing capacity of the support tube 31, effectively reduce deformation, and extend the service life.
[0039] As an optional implementation, Figure 1 As shown, the balancing disc assembly also includes a lower balancing disc 5 , and the rear bearing seat 10 is connected to the lower balancing disc 5 through a double top screw assembly, thereby improving the stability and reliability of the connection between the rear bearing seat 10 and the lower balancing disc 5 .
[0040] Furthermore, the double top screw assembly includes a first top screw 7 and a second top screw 8. One end of the first top screw 7 passes through the first connecting hole 101 of the rear bearing seat 10 and is fixedly connected to the lower balance plate 5, and the other end is provided with a thread groove for accommodating the threaded section of the second top screw 8.
[0041] The function of the first top screw 7 is to connect the rear bearing seat 10 and the lower balancing plate 5. The second top screw 8 is threadedly connected in the thread groove of the first top screw 7 to lock the first top screw 7 to ensure the stability and reliability of the connection between the rear bearing seat 10 and the lower balancing plate 5.
[0042] As an optional implementation, the thickness of the upper balancing plate 4 is 9.5 mm, and the inner diameter of the upper balancing plate 4 is 25 mm; the outer diameter of the upper balancing plate 4 is 56 mm, the thickness of the lower balancing plate 5 is 9.5 mm, the inner diameter of the lower balancing plate 5 is 25 mm, and the outer diameter of the lower balancing plate 5 is 56 mm. This arrangement can increase the structural strength and rigidity of the upper balancing plate 4 and the lower balancing plate 5, and the motor can better resist deformation and stress when used in high-lift occasions.
[0043] As an optional implementation, Figure 1 , 4 As shown in , 5 , the rear bearing seat 10 and the flange 21 are connected by at least four screws 9 .
[0044] Furthermore, after the screw 9 passes through the second connecting hole 102 of the rear bearing seat 10, it is connected to the flange connecting hole 212 of the flange 21 to achieve a fixed connection between the rear bearing seat 10 and the flange 21, increase the connection strength between the rear bearing seat 10 and the flange 21, and ensure the stability and reliability of the connection between the two.
[0045] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.
[0046] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, 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 cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0047] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "an example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0049] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. An axial propulsion device for a DC motor bearing, characterized in that: It includes a rotating shaft, a stator assembly, a rotor assembly, a balancing disc assembly and a rear bearing seat, wherein the stator assembly, the rotor assembly, the balancing disc assembly and the rear bearing seat are sequentially sleeved on the rotating shaft, the support tube of the rotor assembly has a first inclined surface, the flange of the stator assembly and the support tube are provided with a second inclined surface at corresponding positions, and the first inclined surface is arranged in parallel with the second inclined surface.
2. The axial driving device for a DC motor bearing according to claim 1, characterized in that: The balancing plate assembly comprises an upper balancing plate, and a carbon ring is arranged on one end of the upper balancing plate close to the supporting tube. The upper balancing plate and the carbon ring are connected by pins.
3. The axial driving device for a DC motor bearing according to claim 2, characterized in that: The rotor assembly also includes a magnetic ring, one end of which is connected to the carbon ring, and the other end of which is connected to the support tube.
4. The axial driving device for a DC motor bearing according to claim 2, characterized in that: A groove is formed on the working surface of the carbon ring, and the groove extends along the radial direction thereof.
5. The axial driving device for a DC motor bearing according to claim 3, characterized in that: The number of pores on the working surface of the magnetic ring is no more than ten.
6. The axial driving device for a DC motor bearing according to claim 3, characterized in that: The thickness of the magnetic ring is 7 mm, the inner diameter of the magnetic ring is 25 mm, and the outer diameter of the magnetic ring is 56 mm; the thickness of the carbon ring is 7 mm, the inner diameter of the magnetic ring is 24 mm, and the outer diameter of the magnetic ring is 56 mm.
7. The axial propulsion device for a DC motor bearing according to claim 1, characterized in that: The thickness of the support tube is 7.8 mm.
8. The axial driving device for a DC motor bearing according to claim 2, characterized in that: The balancing disc assembly also includes a lower balancing disc, and the rear bearing seat is connected to the lower balancing disc via a double top screw assembly.
9. The axial driving device for a DC motor bearing according to claim 8, characterized in that: The thickness of the upper balancing plate is 9.5 mm, and the inner diameter of the upper balancing plate is 25 mm; the outer diameter of the upper balancing plate is 56 mm; the thickness of the lower balancing plate is 9.5 mm, and the inner diameter of the lower balancing plate is 25 mm, and the outer diameter of the lower balancing plate is 56 mm.
10. The axial driving device for a DC motor bearing according to claim 1, characterized in that: The rear bearing seat and the flange are connected by at least four screws.