CN215805234U

CN215805234U - Split type magnetic drive pump

Info

Publication number: CN215805234U
Application number: CN202121750449.1U
Authority: CN
Inventors: 潘奕甫
Original assignee: Shanghai Jiji Pump Industry Co ltd
Current assignee: Shanghai Jiji Pump Industry Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-11
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a split type magnetic pump which comprises a base, wherein a motor and a pump shell are fixedly connected to the base, an impeller is arranged inside the pump shell, the outer wall of the impeller is fixedly connected with a connecting shaft, one end of the connecting shaft penetrates through the inner wall of the pump shell and then is fixedly connected with an inner magnetic rotor, the connecting shaft is rotatably connected with the pump shell, the outer wall of the pump shell is fixedly connected with an isolating sleeve, the inner magnetic rotor is positioned in the isolating sleeve, an outer magnetic cylinder is sleeved on the outer side of the isolating sleeve, and a shell is fixedly connected to the outer wall of the pump shell; according to the utility model, through the arrangement of the sleeve, the connecting block and the connecting groove, because the heat conductivity coefficients of the sleeve and the connecting sleeve made of engineering plastics are far lower than those of the transmission shaft and the motor output shaft made of metal, after the sleeve and the connecting sleeve are used for connecting the transmission shaft and the motor output shaft, the effect of thermal bridge breaking can be achieved, so that the heat of the magnetic pump is prevented from being rapidly transmitted to the motor output shaft, and the overhigh temperature rise of the motor is avoided.

Description

Split type magnetic drive pump

Technical Field

The utility model relates to a magnetic pump, in particular to a split type magnetic pump.

Background

The magnetic pump (also called magnetic driving pump) is mainly composed of pump head, magnetic driver (magnetic cylinder), motor and base. The magnetic driver of the magnetic pump consists of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic separation sleeve. When the motor drives the outer magnetic rotor to rotate through the coupler, the magnetic field can penetrate through the air gap and the nonmagnetic substance isolation sleeve to drive the inner magnetic rotor connected with the impeller to synchronously rotate, so that the non-contact synchronous transmission of power is realized, and the dynamic sealing structure which is easy to leak is converted into a static sealing structure with zero leakage. The pump shaft and the inner magnetic rotor are completely sealed by the pump body and the isolation sleeve, so that the problems of leakage, overflow, dripping and leakage are thoroughly solved.

The traditional CQB type magnetic pump adopts a direct connection type, the external magnetic steel of the pump is directly sleeved on the output shaft of the driving motor, the pump body and the driving motor are directly connected through the support, and the pump in the form has the defects that the temperature rise of the driving motor is too high due to the short length and good heat conductivity of the support when high-temperature liquid is conveyed, the service life is influenced, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a split magnetic pump to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme:

a split type magnetic pump comprises a base, wherein a motor and a pump shell are fixedly connected to the base, an impeller is arranged inside the pump shell, a connecting shaft is fixedly connected to the outer wall of the impeller, an inner magnetic rotor is fixedly connected to the rear end, penetrating through the inner wall of the pump shell, of one end of the connecting shaft, is rotatably connected with the pump shell, an isolating sleeve is fixedly connected to the outer wall of the pump shell, the inner magnetic rotor is located in the isolating sleeve, an outer magnetic cylinder is sleeved on the outer side of the isolating sleeve, a shell is fixedly connected to the outer wall of the pump shell, the outer magnetic cylinder is located inside the shell, a transmission shaft is fixedly connected to the outer wall of the outer magnetic cylinder, penetrating through the shell, of one end of the transmission shaft is rotatably connected with the shell, one end, located outside the shell, of the transmission shaft is connected with an output shaft of the motor through a connecting piece, and a support is fixedly connected to the top of the base, the top of the support is fixedly connected with a cooling cover, and the joint of the transmission shaft and the output shaft of the motor is positioned in the cooling cover.

As a further scheme of the utility model: the connecting piece includes the sleeve pipe, sheathed tube outer wall integrated into one piece has the adapter sleeve, the sleeve pipe cup joints in the tip of transmission shaft, the terminal surface fixedly connected with connecting block of transmission shaft, the connecting block is located the adapter sleeve, the spread groove has been seted up to the terminal surface of the output shaft of motor, the adapter sleeve is located the spread groove, the size of adapter sleeve and the size looks adaptation of spread groove.

As a further scheme of the utility model: the sleeve pipe is in interference fit with the transmission shaft, and the connecting block is in interference fit with the connecting sleeve.

As a further scheme of the utility model: the cooling cover comprises a lower cover body and an upper cover body which are fixedly connected through a bolt, the bottom of the lower cover body is fixedly connected with the top end of the support, and the lower cover body are rotatably connected.

As a further scheme of the utility model: the top of the lower cover body is provided with a water inlet pipe and a water outlet pipe in a penetrating way.

As a still further scheme of the utility model: the lower cover body is connected with the upper cover body in a sealing mode, and the transmission shaft and the output shaft of the motor are connected with the lower cover body and the upper cover body in a rotating and sealing mode through sealing bearings.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the arrangement of the sleeve, the connecting block and the connecting groove, because the heat conductivity coefficients of the sleeve and the connecting sleeve made of engineering plastics are far lower than those of the transmission shaft and the motor output shaft made of metal, after the sleeve and the connecting sleeve are used for connecting the transmission shaft and the motor output shaft, the effect of thermal bridge breaking can be achieved, so that the heat of the magnetic pump is prevented from being rapidly transmitted to the motor output shaft, the overhigh temperature rise of the motor is avoided, and the using effect is good.

2. The cooling cover consisting of the lower cover body and the upper cover body can ensure the coaxiality between the transmission shaft and the output shaft of the motor, thereby ensuring the stability of power transmission and reducing the vibration generated when the magnetic pump works.

Drawings

Fig. 1 is a schematic structural view of a split type magnetic pump.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a schematic structural view of a connecting sleeve in a split type magnetic pump.

Fig. 4 is a schematic structural diagram of a support in the split magnetic pump.

The device comprises a base 1, a motor 2, a pump shell 3, an impeller 4, a connecting shaft 5, an inner magnetic rotor 6, an isolation sleeve 7, an outer magnetic cylinder 8, a shell 9, a transmission shaft 10, a connecting block 11, a sleeve 12, a connecting sleeve 13, a connecting groove 14, a support 15, a lower cover body 16, an upper cover body 17, a water inlet pipe 18 and a water outlet pipe 19.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are used merely to facilitate description of the present invention and to simplify description, and do not indicate or imply that the referenced devices or elements must have the particular orientations, configurations and operations described in the specification, and therefore are not to be considered limiting.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 4, in the embodiment of the present invention, a split magnetic pump includes a base 1, a motor 2 and a pump housing 3 are fixedly connected to the base 1, an impeller 4 is disposed inside the pump housing 3, a connecting shaft 5 is fixedly connected to an outer wall of the impeller 4, an inner magnetic rotor 6 is fixedly connected to one end of the connecting shaft 5 after penetrating through an inner wall of the pump housing 3, the connecting shaft 5 and the pump housing 3 are rotatably connected, an isolation sleeve 7 is fixedly connected to an outer wall of the pump housing 3, the inner magnetic rotor 6 is located inside the isolation sleeve 7, an outer magnetic cylinder 8 is sleeved outside the isolation sleeve 7, a housing 9 is fixedly connected to an outer wall of the pump housing 3, the outer magnetic cylinder 8 is located inside the housing 9, a transmission shaft 10 is fixedly connected to an outer wall of the outer magnetic cylinder 8, one end of the transmission shaft 10 penetrates through the housing 9, and the transmission shaft 10 is rotatably connected to the housing 9, one end of the transmission shaft 10, which is positioned outside the shell 9, is connected with an output shaft of the motor 2 through a connecting piece, the top of the base 1 is fixedly connected with a support 15, the top of the support 15 is fixedly connected with a cooling cover, and the joint of the transmission shaft 10 and the output shaft of the motor 2 is positioned in the cooling cover.

The connecting piece includes sleeve pipe 12, sleeve pipe 12's outer wall integrated into one piece has adapter sleeve 13, sleeve pipe 12 cup joints in the tip of transmission shaft 10, the terminal surface fixedly connected with connecting block 11 of transmission shaft 10, connecting block 11 is located adapter sleeve 13, spread groove 14 has been seted up to the terminal surface of the output shaft of motor 2, adapter sleeve 13 is located spread groove 14, the size of adapter sleeve 13 and the size looks adaptation of spread groove 14.

The sleeve 12 and the connecting sleeve 13 are made of engineering plastics, and through the arrangement of the sleeve 12, the connecting sleeve 13, the connecting block 11 and the connecting groove 14, the heat conductivity coefficient of the engineering plastics is far lower than that of the transmission shaft 10 made of metal and the output shaft of the motor 2, so that after the engineering plastics are used for connecting the transmission shaft 10 and the output shaft of the motor 2, the effect of thermal bridge breaking can be achieved, the heat of the magnetic pump is prevented from being rapidly transmitted to the output shaft of the motor 2, the temperature rise of the motor 2 is prevented from being too high, and the using effect is good.

The sleeve 12 is in interference fit with the transmission shaft 10, and the connecting block 11 is in interference fit with the connecting sleeve 13.

The cooling cover comprises a lower cover body 16 and an upper cover body 17 which are fixedly connected through bolts, the bottom of the lower cover body 16 is fixedly connected with the top end of the support 15, and the lower cover body 16 are rotatably connected.

The top end of the lower cover body 16 is provided with a water inlet pipe 18 and a water outlet pipe 19 in a penetrating way.

The lower cover body 16 is hermetically connected with the upper cover body 17, and the transmission shaft 10 and the output shaft of the motor 2 are both rotationally and hermetically connected with the lower cover body 16 and the upper cover body 17 through sealed bearings.

Through setting up the cooling cover that comprises the lower cover body 16 and the upper cover body 17, can guarantee the axiality between transmission shaft 10 and the 2 output shafts of motor, thereby guarantee power transmission's stability, reduce the produced vibration of magnetic pump during operation, simultaneously, through leading-in cooling cover by inlet tube 18 with the cooling water, derive by outlet pipe 19 again, can carry out effectual cooling to transmission shaft 10 and the 2 output shafts of motor that are located the cooling cover, further avoid the heat transfer between magnetic pump and the motor 2.

The working principle of the utility model is as follows:

in the utility model, the sleeve 12 and the connecting sleeve 13 are made of engineering plastics, and through the arrangement of the sleeve 12, the connecting sleeve 13, the connecting block 11 and the connecting groove 14, because the heat conductivity coefficient of the engineering plastics is far lower than that of the transmission shaft 10 and the output shaft of the motor 2 which are made of metal, after the engineering plastics are used for connecting the transmission shaft 10 and the output shaft of the motor 2, the effect of thermal bridge breaking can be achieved, so that the heat of the magnetic pump is prevented from being rapidly transmitted to the output shaft of the motor 2, the overhigh temperature rise of the motor 2 is avoided, and the using effect is good.

The utility model can ensure the coaxiality between the transmission shaft 10 and the output shaft of the motor 2 by arranging the cooling cover consisting of the lower cover body 16 and the upper cover body 17, thereby ensuring the stability of power transmission and reducing the vibration generated when the magnetic pump works, and meanwhile, the cooling water is guided into the cooling cover by the water inlet pipe 18 and then is guided out by the water outlet pipe 19, thereby effectively cooling the transmission shaft 10 and the output shaft of the motor 2 which are positioned in the cooling cover and further avoiding the heat transfer between the magnetic pump and the motor 2.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. A split type magnetic drive pump which is characterized in that: the magnetic pump comprises a base (1), wherein a motor (2) and a pump shell (3) are fixedly connected to the base (1), an impeller (4) is arranged inside the pump shell (3), a connecting shaft (5) is fixedly connected to the outer wall of the impeller (4), an inner magnetic rotor (6) is fixedly connected to one end of the connecting shaft (5) after penetrating through the inner wall of the pump shell (3), the connecting shaft (5) and the pump shell (3) are rotatably connected, an isolating sleeve (7) is fixedly connected to the outer wall of the pump shell (3), the inner magnetic rotor (6) is located in the isolating sleeve (7), an outer magnetic cylinder (8) is sleeved on the outer side of the isolating sleeve (7), a shell (9) is fixedly connected to the outer wall of the pump shell (3), the outer magnetic cylinder (8) is located inside the shell (9), a transmission shaft (10) is fixedly connected to the outer wall of the outer magnetic cylinder (8), and one end of the transmission shaft (10) penetrates through the shell (9), the transmission shaft (10) is rotatably connected with the shell (9), one end, located outside the shell (9), of the transmission shaft (10) is connected with an output shaft of the motor (2) through a connecting piece, a support (15) is fixedly connected to the top of the base (1), a cooling cover is fixedly connected to the top of the support (15), and the connecting position of the transmission shaft (10) and the output shaft of the motor (2) is located in the cooling cover.

2. The split magnetic pump of claim 1, wherein: the connecting piece includes sleeve pipe (12), the outer wall integrated into one piece of sleeve pipe (12) has adapter sleeve (13), sleeve pipe (12) cup joint in the tip of transmission shaft (10), the terminal surface fixedly connected with connecting block (11) of transmission shaft (10), connecting block (11) are located adapter sleeve (13), spread groove (14) have been seted up to the terminal surface of the output shaft of motor (2), adapter sleeve (13) are located spread groove (14), the size of adapter sleeve (13) and the size looks adaptation of spread groove (14).

3. The split magnetic pump of claim 2, wherein: the sleeve (12) is in interference fit with the transmission shaft (10), and the connecting block (11) is in interference fit with the connecting sleeve (13).

4. The split magnetic pump of claim 1, wherein: the cooling cover comprises a lower cover body (16) and an upper cover body (17) which are fixedly connected through bolts, the bottom of the lower cover body (16) is fixedly connected with the top end of the support (15), and the lower cover body (16) are rotatably connected.

5. The split magnetic pump of claim 4, wherein: the top end of the lower cover body (16) is provided with a water inlet pipe (18) and a water outlet pipe (19) in a penetrating way.

6. The split magnetic pump of claim 4, wherein: the lower cover body (16) is connected with the upper cover body (17) in a sealing mode, and the transmission shaft (10) and the output shaft of the motor (2) are connected with the lower cover body (16) and the upper cover body (17) in a rotating and sealing mode through sealing bearings.