Structure of an inner magnetic rotor for a magnetic pump

Abstract

Construction of an inner magnetic rotor (10) for a magnetic pump (1), comprising: an inner magnetic rotor (10) with a rotation chamber (100) for receiving a drive shaft (consisting of materials with high hardness) (13) and with a first sliding bearing receptacle (102) on one side of the rotation chamber (100) and with a second sliding bearing receptacle (104) on the opposite side, wherein a sealing disc (consisting of materials with high hardness) (14) is arranged in each of the first sliding bearing receptacle (102) and the second sliding bearing receptacle (104), whereby the drive shaft (13) is arranged continuously; a front pump housing (11) having a first sliding bearing receptacle (102) for receiving a first sliding bearing (made of high-hardness materials) (15) which enables a continuous arrangement and sliding support of the drive shaft (13) over the first sealing disc (14); and a rear pump housing (12) having a mounting space (120) for receiving the inner magnetic rotor (10) and having in the mounting space (120) a second pivot recess (122) for receiving a second sliding bearing (made of high-hardness materials) (16), wherein the second sliding bearing (16) enables the continuous arrangement and sliding support of the drive shaft (13) over the second sealing disc (14), wherein the efficiency of the friction of the drive shaft (13) is improved by the first sliding bearing (15) and the second sliding bearing (16), and wherein the drive shaft (13), the sealing disc (14) and the sliding bearings (15, 16) (consisting of materials with high hardness) are made of silicon carbide and zirconium oxide.

Description

Technical field

[0001] The present utility model relates to the construction of a magnetic pump, in particular an improved construction of an inner magnetic rotor for a magnetic pump. State of the art

[0002] A magnetic drive pump, also known as a magnetic coupling pump, is a pump made primarily of plastic materials that drives the pumped medium through contactless torque transmission via magnetic force. Unlike conventional pumps that use a mechanical shaft for power transmission, magnetic drive pumps utilize the attraction and repulsion between magnets to drive the impeller. This allows for a sealed design and prevents leaks, which is particularly important when pumping liquids.

[0003] In conventional magnetic drive pumps, power is transmitted via a drive shaft, a multitude of sealing discs, and plain bearings to set the impeller in rotation. This rotational movement ensures the pump's normal operation. In conventional designs, the drive shaft and sealing discs are primarily made of ceramic, while the plain bearings are made of wear-resistant plastic. However, long-term friction between the rotating drive shaft and the plain bearings can lead to structural damage or excessive wear, ultimately impairing the pump's sealing performance. Purpose of the present utility model

[0004] The present utility model is therefore based on the objective of creating an internal magnetic rotor for a magnetic pump with an improved design, wherein its sealing discs, drive shaft and slide bearings, which are intended as rotating components, preferably consist of materials with high hardness, so that the efficiency of the friction between the drive shaft and the first slide bearing and the second slide bearing is significantly improved in order to extend the service life of the robust construction of components of a magnetic pump and to reduce maintenance and replacement costs.

[0005] This problem is solved according to the invention by a design of an inner magnetic rotor of a magnetic pump, comprising essentially: an inner magnetic rotor with a rotation chamber for receiving a drive shaft and with a first sliding bearing receptacle on one side of the rotation chamber and with a second sliding bearing receptacle on the opposite side, wherein a sealing disc is arranged in each of the first and second sliding bearing receptacles, thereby enabling the drive shaft to be arranged continuously; a front pump housing, which has a first sliding bearing receptacle for receiving a first sliding bearing, which enables a continuous arrangement and a sliding bearing of the drive shaft via the first sealing disc;and a rear pump housing having a mounting space for receiving the inner magnetic rotor and having in the mounting space a second pivot recess for receiving a second sliding bearing, wherein the second sliding bearing enables the continuous arrangement and sliding bearing of the drive shaft over the second sealing disc, thereby improving the efficiency of the friction of the drive shaft between the first and second sliding bearings, and wherein the drive shaft, the sealing disc and the sliding bearings are made of materials with high hardness, preferably silicon carbide and zirconium oxide.

[0006] According to a preferred embodiment of the present utility model, the two ends of the drive shaft extend through the sealing discs and each has a sliding bearing section that is in operative contact with the first sliding bearing and with the second sliding bearing.

[0007] According to a preferred alternative embodiment, the sealing discs are attached to the inner magnetic rotor and are located in the first sliding bearing receptacle and the second sliding bearing receptacle, which are arranged on the drive shaft to achieve synchronous rotation.

[0008] According to a preferred further embodiment, the inner magnetic rotor is enclosed by a plurality of magnetic units.

[0009] According to a preferred further embodiment, the rear pump housing is preferably made of a non-conductive material. Brief description of the drawings

[0010] The embodiments of the present utility model are described by way of example with reference to the following drawings. They show Fig. 1 a perspective sectional view of the internal structure of the magnetic pump of the present utility model; Fig. 2 a perspective exploded view of the internal structure of the magnetic pump of the present utility model; Fig. 3 a sectional view showing an assembly of an inner magnetic rotor in conjunction with the rear pump housing of the present utility model; and Fig. 4 a sectional view showing a combination of an inner magnetic rotor (10) of a magnetic pump according to the invention with an outer magnetic rotor. Description of preferred embodiments

[0011] A preferred embodiment of an improved design of an inner magnetic rotor for magnetic pump 1 according to the present utility model, as it Fig. The device, as shown in Figures 1 and 2, essentially comprises an inner magnetic rotor 10, a front pump housing 11, a rear pump housing 12 (made of a non-conductive material), a drive shaft 13, a sealing disc 14, a first sliding bearing 15, and a second sliding bearing 16, wherein the drive shaft 13, the sealing disc 14, and the sliding bearings 15 and 16 are preferably made of silicon carbide and zirconium oxide. Furthermore, the inner magnetic rotor 10 includes a rotation chamber 100 for receiving the drive shaft 13, a first sliding bearing receptacle 102, and a second sliding bearing receptacle 104, each located on opposite sides of the rotation chamber. The sealing discs 14 are also arranged in these two sliding bearing receptacles for the continuous arrangement of the drive shaft 13.Furthermore, the sealing discs 14 are fixedly attached to the inner magnetic rotor 10 and positioned in the first sliding bearing receptacle 102 and in the second sliding bearing receptacle 104, so that they can rotate synchronously with the drive shaft 13. The inner magnetic rotor is also enclosed by a plurality of magnetic units 106.

[0012] For this purpose, a first plain bearing 15 is arranged in the front pump housing 11. Furthermore, the drive shaft 13, which is arranged through the sealing disc 14 in the first plain bearing receptacle 102, has a plain bearing contact area 130 that is in operative communication with the first plain bearing 15. In addition, the sealing disc 14 is arranged through the second plain bearing receptacle 104 at the opposite end of the drive shaft 13 and also has a plain bearing contact area 130. As also shown from Fig. 3 It is evident that the rear pump housing 12 has a mounting space 120 for receiving the inner magnetic rotor 10. In this mounting space 120 there is a second pivot recess 122 for positioning the second sliding bearing 16. The sliding bearing contact area 130 formed at the other end of the drive shaft 13 is in operative connection with the second sliding bearing 16 arranged in the rear pump housing 12.

[0013] After completion of the above-mentioned assembly, the inner magnetic rotor 10 of the magnetic pump 1 according to the invention, together with the rear pump housing 12, can be referred to as the inner magnetic rotor. This is installed directly inside an outer magnetic rotor 2 (as shown in the figure). Fig.(as can be seen in Figure 4). Furthermore, the outer magnetic rotor 2 has a receiving chamber 20 for receiving the rear pump housing 12, with a plurality of magnetic elements 22 arranged on the inner wall of this receiving chamber 20. For this reason, there is no structural interaction between the rear pump housing 12 and the outer magnetic rotor 2, and the magnetic drive is effected by the interaction of the magnetic units 106 with the magnetic elements 22.

[0014] As described above, the sealing discs, drive shaft and slide bearings of the magnetic pump 1, which serve as rotating core components, are preferably made of materials with high hardness, thereby significantly improving the efficiency of the friction between the drive shaft 13 and the first slide bearing 15 and the second slide bearing 16 and thus considerably extending the service life of the magnetic pump while simultaneously reducing maintenance costs. Reference symbol list 1 magnetic pump 10 Inner magnetic rotor 100 rotation space 102 First sliding bearing mount 104 Second sliding bearing mount 106 magnetic units 11 A front pump housing 12 A rear pump housing 120 assembly room 122 Second joint depression 13 Drive shaft (consists of materials with high hardness) 130 sliding bearing contact area 14 Sealing washer (made of high-hardness materials) 15 A first plain bearing 16 A second plain bearing 2 Outer magnetic rotor 20 Recording room 22 Magnetic elements

Claims

[1] Structure of an inner magnetic rotor (10) for a magnetic pump (1), comprising: an inner magnetic rotor (10) with a rotation chamber (100) for receiving a drive shaft (consisting of materials with high hardness) (13) and with a first sliding bearing receptacle (102) on one side of the rotation chamber (100) and with a second sliding bearing receptacle (104) on the opposite side, wherein a sealing disc (consisting of materials with high hardness) (14) is arranged in each of the first sliding bearing receptacle (102) and the second sliding bearing receptacle (104), whereby the drive shaft (13) is arranged continuously; a front pump housing (11) having a first sliding bearing receptacle (102) for receiving a first sliding bearing (made of high-hardness materials) (15) which enables a continuous arrangement and sliding support of the drive shaft (13) over the first sealing disc (14); and a rear pump housing (12) having a mounting space (120) for receiving the inner magnetic rotor (10) and having in the mounting space (120) a second pivot recess (122) for receiving a second sliding bearing (made of high-hardness materials) (16), wherein the second sliding bearing (16) enables the continuous arrangement and sliding support of the drive shaft (13) over the second sealing disc (14), wherein the efficiency of the friction of the drive shaft (13) is improved by the first sliding bearing (15) and the second sliding bearing (16), and wherein the drive shaft (13), the sealing disc (14) and the sliding bearings (15, 16) (consisting of materials with high hardness) are made of silicon carbide and zirconium oxide. [2] Construction of an inner magnetic rotor (10) for a magnetic pump (1) according to claim 1, characterized by, that the two ends of the drive shaft (13) each extend through the sealing discs (14) and each has a sliding bearing section (130) which is in operative contact with the first sliding bearing (15) and with the second sliding bearing (16). [3] Construction of an inner magnetic rotor (10) for a magnetic pump (1) according to claim 1, characterized by , that the sealing discs (14) (consisting of materials with high hardness) are each attached to the inner magnet rotor (10) and are located in the first sliding bearing receptacle (102) and in the second sliding bearing receptacle (104), which are arranged on the drive shaft (13) to achieve synchronous rotation. [4] Construction of an inner magnetic rotor (10) for a magnetic pump (1) according to claim 1, characterized by , that the inner magnetic rotor (10) is enclosed by a plurality of magnetic units (106). [5] Construction of an inner magnetic rotor (10) for a magnetic pump (1) according to claim 1, characterized by, that the rear pump housing (12) is made of a non-conductive material.

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