CN219413494U - Novel magnetic fluid shaft cooling device - Google Patents

Abstract

The utility model discloses a novel magnetic fluid shaft cooling device, which relates to the field of magnetic fluid shafts and comprises a shaft core and a shaft sleeve, wherein a circulating assembly is arranged on the shaft sleeve and comprises a convex block, an ejector rod is connected to the shaft sleeve, one end of the ejector rod is connected with a piston plate, a telescopic rod is connected to the piston plate, a spring is sleeved outside the telescopic rod, a buffer cushion is fixed below the piston plate, a circulating chamber is arranged on the shaft sleeve, and an air hole is formed in the top of the circulating chamber. According to the utility model, through the arrangement of the circulating assembly, the piston plate is driven to move by the piston rod, so that the magnetic fluid in the magnetic fluid chamber is pumped into the circulating chamber, the cooling effect is achieved, in the working process of the magnetic fluid shaft, the shaft core rotates to drive the convex block to rotate, the convex block intermittently jacks up the ejector rod, the piston plate is driven to move upwards in the circulating chamber, the magnetic fluid is pumped into the circulating chamber and is cooled by the cooling liquid in the cooling chamber, and the magnetic fluid shaft cooling device can cool the magnetic fluid and reduce the consumption of energy.

Description

Novel magnetic fluid shaft cooling device

Technical Field

The utility model relates to the field of magnetic fluid shafts, in particular to a novel magnetic fluid shaft cooling device.

Background

The magnetic fluid bearing is a sliding bearing taking conductive fluid as a lubricant and having an externally-applied magnetic field, induced current generated by the fluid under the action of the magnetic field plays a role in retarding the movement of the fluid, so that the equivalent viscosity of the fluid is multiplied, the conventional magnetic fluid shaft is mostly provided with a cooling mechanism, the conductive fluid is subjected to heat dissipation and cooling through the cooling mechanism, and the service life of the conductive fluid is prolonged.

The utility model discloses a novel magnetic fluid shaft cooling device with the application number of 202121241315.7, which relates to the field of magnetic fluid shafts.

The magnetic fluid shaft can be continuously pumped through the cooling liquid circulating pump, but the circulating pump needs to consume electric energy in the working process of the bearing, and the circulating pump needs to continuously work and consume energy in order to radiate heat for the magnetic fluid, so that the magnetic fluid shaft cooling device needs to be designed, and the energy consumption is reduced while the cooling purpose is achieved.

Disclosure of Invention

Based on the above, the utility model aims to provide a novel magnetic fluid shaft cooling device so as to solve the technical problem that the circulating pump is relatively energy-consuming to work.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel magnetic fluid axle cooling device, includes axle core and axle sleeve, be provided with circulation subassembly on the axle sleeve, circulation subassembly includes the lug, be connected with the ejector pin on the axle sleeve, ejector pin one end is connected with the piston board, be connected with the telescopic link on the piston board, the spring has been cup jointed to the telescopic link outside, be fixed with the blotter under the piston board, be provided with the circulation room on the axle sleeve, the gas pocket has been seted up at the circulation room top.

Through adopting above-mentioned technical scheme, can drive the piston board motion through the piston rod, and then take out the magnetic fluid in the magnetic fluid room to the circulation room in, reach refrigerated effect, the in-process, the telescopic link can be to the spring direction, the spring skew of reduction, and the gas pocket at circulation room top has reduced the influence of atmospheric pressure to the device.

Further, a magnetic fluid chamber is arranged between the shaft sleeve and the shaft core, balls are connected between the shaft sleeve and the shaft core, a heat conducting plate is fixed on the shaft sleeve, a cooling chamber is connected on the shaft sleeve, and a water pipe penetrates through the cooling chamber.

Through adopting above-mentioned technical scheme, be provided with the magnetic fluid in the magnetic fluid room, the heat conduction board can be with the heat conduction of circulation room to the cooling chamber, can let in the cooling with the coolant liquid through the water pipe in, and then carries out the heat exchange through heat conduction board and the magnetic fluid in the circulation room.

Further, the three protruding blocks are arranged and distributed in an annular array, and the three protruding blocks are all arc-shaped.

By adopting the technical scheme, in the working process of the magnetic fluid shaft, the shaft core rotates to drive the lug to rotate, the lug intermittently jacks up the ejector rod to drive the piston plate to move upwards in the circulating chamber, the magnetic fluid is pumped into the circulating chamber, and the magnetic fluid is cooled by the cooling liquid in the cooling chamber.

Furthermore, the three ejector rods, the piston plate, the springs, the telescopic rods and the circulating chambers are all arranged in a circular array.

By adopting the technical scheme, the ejector rod can jack up the piston plate, the piston plate seals the circulating chamber, negative pressure is formed in the circulating chamber when the piston moves upwards under the force, and then magnetic fluid is sucked into the circulating chamber for cooling.

Further, the three ejector rods and the piston plate are respectively connected with the three circulation chambers in a sliding manner.

By adopting the technical scheme, in the process of moving the shaft core, the lug rotates along with the shaft core, and then the lug jacks the ejector rod or the lug is far away from the ejector rod, after the ejector rod is far away from the ejector rod, the ejector rod and the piston plate move downwards under the action of the spring, so that the magnetic fluid can be refilled into the magnetic fluid chamber.

Further, the number of the cushion pads is six, every two cushion pads are divided into one group, and the three groups of cushion pads are respectively positioned at two sides of the bottoms of the three piston plates.

By adopting the technical scheme, the buffer pad can buffer the piston plate in the process of downwards moving the piston plate under the force, so that the impact on the piston plate is reduced, the function of protecting the piston plate is achieved, and the service life of the device is prolonged.

Further, the balls are provided in plurality, and the balls are distributed in an annular array.

Through adopting above-mentioned technical scheme, at the axle core rotation in-process, because a plurality of balls are annular array and distribute, a plurality of balls can change the frictional force between axle core and the axle sleeve into the rotation of ball self, reduce the frictional force between axle core and the axle sleeve.

In summary, the utility model has the following advantages:

according to the utility model, through the arrangement of the circulating assembly, the piston plate is driven to move through the piston rod, so that the magnetic fluid in the magnetic fluid chamber is pumped into the circulating chamber, the cooling effect is achieved, in the working process of the magnetic fluid shaft, the shaft core rotates to drive the lug to rotate, the lug intermittently jacks up the ejector rod to drive the piston plate to move upwards in the circulating chamber, the magnetic fluid is pumped into the circulating chamber and cooled by cooling liquid in the cooling chamber, in addition, after the lug is far away from the ejector rod, the ejector rod and the piston plate move downwards under the action of the spring, the magnetic fluid is refilled into the magnetic fluid chamber, in the process, the telescopic rod guides the spring, the spring deflection is reduced, the buffer pad buffers the piston plate, the impact on the piston plate is reduced, in addition, the air hole at the top of the circulating chamber reduces the influence of air pressure on the device, and the magnetic fluid shaft cooling device can cool the magnetic fluid and reduce the consumption of energy.

Drawings

FIG. 1 is a schematic cross-sectional view of a bushing according to the present utility model;

FIG. 2 is a schematic view of a shaft sleeve shaft measurement structure according to the present utility model;

FIG. 3 is a schematic diagram of the overall axial structure of the present utility model;

fig. 4 is a schematic view of an explosion structure of the shaft sleeve according to the present utility model.

In the figure: 1. a shaft core; 2. a shaft sleeve; 3. a magnetic fluid chamber; 4. a ball; 5. a circulation assembly; 501. a bump; 502. a push rod; 503. a piston plate; 504. a spring; 505. a telescopic rod; 506. a cushion pad; 507. a circulation chamber; 508. air holes; 6. a heat conductive plate; 7. a cooling chamber; 8. a water pipe.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

The novel magnetic fluid shaft cooling device comprises a shaft core 1 and a shaft sleeve 2, wherein a circulation assembly 5 for circulating magnetic fluid is arranged in the shaft sleeve 2, as shown in figures 1, 2, 3 and 4.

Specifically, the circulation assembly 5 includes the lug 501 that is fixed in the axle core 1, axle sleeve 2 internally connected with ejector pin 502, can jack up piston plate 503, ejector pin 502, piston plate 503, spring 504, telescopic link 505, circulation room 507 all are provided with three, and three ejector pin 502, piston plate 503, spring 504, telescopic link 505, circulation room 507 all are annular array distribution, three ejector pin 502 and piston plate 503 respectively with three circulation room 507 sliding connection, ejector pin 502 one end is connected with piston plate 503, piston plate 503 top is connected with telescopic link 505, can prevent the spring 504 skew, the outside spring 504 that has cup jointed of telescopic link 505, piston plate 503 bottom is fixed with blotter 506, can protect piston plate 503, blotter 506 is provided with six, every two divide into a set of, and three sets of blotter 506 are located three piston plate 503 bottom both sides respectively, be provided with circulation room 507 on axle sleeve 2, circulation room 507 top has seted up gas pocket 508, the consumption that above structure makes the axle cooling device can cool down the magnetic fluid simultaneously.

Referring to fig. 1, 2, 3 and 4, in the above embodiment, the magnetic fluid chamber 3 is provided between the shaft sleeve 2 and the shaft core 1, the balls 4 are connected between the shaft sleeve 2 and the shaft core 1, so that the friction force between the shaft core 1 and the shaft sleeve 2 can be reduced, the balls 4 are provided with a plurality of balls, the balls 4 are distributed in a ring array, the shaft sleeve 2 is fixed with the heat conducting plate 6, heat can be conducted, the shaft sleeve 2 is connected with the cooling chamber 7, and the water pipe 8 penetrates through the cooling chamber 7, so that the device has a cooling function due to the above structure.

Referring to fig. 1 and 4, in the above embodiment, three protruding blocks 501 are provided, and the three protruding blocks 501 are distributed in an annular array, and the three protruding blocks 501 are all arc-shaped, during the working process of the magnetic fluid shaft, the shaft core 1 rotates to drive the protruding blocks 501 to rotate, and then the protruding blocks 501 intermittently jack up the ejector rod 502 to drive the piston plate 503 to move upwards in the circulation chamber.

The implementation principle of the embodiment is as follows: the cooling chamber 7 of the magnetic fluid shaft is communicated with external cooling liquid through the water pipe 8, the magnetic fluid shaft can start to work, the balls 4 reduce friction force between the shaft core 1 and the shaft sleeve 2 in the process, the magnetic fluid generates induced current under the action of a magnetic field, and Lorentz force generated by interaction of the induced current and the magnetic field has a retarding effect on fluid movement, so that equivalent viscosity of the fluid is multiplied, and abrasion is further reduced;

in the working process of the magnetic fluid shaft, the shaft core 1 rotates to drive the protruding block 501 to rotate, the protruding block 501 intermittently jacks up the ejector rod 502 to drive the piston plate 503 to move upwards in the circulating chamber 507, negative pressure is formed between the bottom of the piston plate 503 and the circulating chamber 507, magnetic fluid is pumped into the circulating chamber 507 to be cooled by cooling liquid in the cooling chamber 7, after the protruding block 501 is far away from the ejector rod 502, the ejector rod 502 and the piston plate 503 move downwards under the action of the spring 504, the cooled magnetic fluid is refilled into the magnetic fluid chamber 3, in the process, the telescopic rod 505 guides the spring 504, the deflection of the spring 504 is reduced, the buffer pad 506 buffers the piston plate 503, the impact on the piston plate 503 is reduced, and in addition, the air hole 508 at the top of the circulating chamber 507 reduces the influence of air pressure on the device.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims (7)

1. The utility model provides a novel magnetic fluid axle cooling device, includes axle core (1) and axle sleeve (2), its characterized in that: be provided with circulation subassembly (5) on axle sleeve (2), circulation subassembly (5) include lug (501), be connected with ejector pin (502) on axle sleeve (2), ejector pin (502) one end is connected with piston board (503), be connected with telescopic link (505) on piston board (503), spring (504) have been cup jointed to telescopic link (505) outside, be fixed with blotter (506) under piston board (503), be provided with circulation room (507) on axle sleeve (2), gas pocket (508) have been seted up at circulation room (507) top.

2. The novel magnetic fluid shaft cooling device according to claim 1, wherein: magnetic fluid chamber (3) has been seted up between axle sleeve (2) and axle core (1), be connected with ball (4) between axle sleeve (2) and the axle core (1), be fixed with on axle sleeve (2) heat-conducting plate (6), be connected with cooling chamber (7) on axle sleeve (2), it has water pipe (8) to run through on cooling chamber (7).

3. The novel magnetic fluid shaft cooling device according to claim 1, wherein: the bumps (501) are arranged in three, the three bumps (501) are distributed in an annular array, and the three bumps (501) are all arc-shaped.

4. The novel magnetic fluid shaft cooling device according to claim 1, wherein: the piston rod is characterized in that three ejector rods (502), piston plates (503), springs (504), telescopic rods (505) and circulating chambers (507) are arranged, and the three ejector rods (502), the piston plates (503), the springs (504), the telescopic rods (505) and the circulating chambers (507) are distributed in an annular array.

5. The novel magnetic fluid shaft cooling device according to claim 4, wherein: the three ejector rods (502) and the piston plate (503) are respectively connected with the three circulation chambers (507) in a sliding manner.

6. The novel magnetic fluid shaft cooling device according to claim 5, wherein: six cushions (506) are arranged, every two cushions are divided into one group, and three groups of cushions (506) are respectively positioned at two sides of the bottom of the three piston plates (503).

7. A novel magnetic fluid shaft cooling device according to claim 2, wherein: the balls (4) are arranged in a plurality, and the balls (4) are distributed in an annular array.