Motor with extension end bearing cooling structure

Abstract

The utility model discloses a motor with an extension end bearing cooling structure. The rotating shaft is provided with an extending end and a tail end, the front bearing assembly is installed at the extending end, the rear bearing assembly is installed at the tail end, the cooling fan is assembled at the tail end, and the cooling structure is assembled at the extending end and used for changing the air supply flow direction of the cooling fan. The cooling structure comprises a baffle extending in the radial direction relative to the rotating shaft and two oppositely-arranged wing plates extending in the axial direction of the baffle, and the cooling structure is assembled at the extending end and used for intercepting and changing the air supply flow direction of the cooling fan and guiding part of cooling air to the front bearing assembly, so that the front bearing assembly can be cooled.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor and motor fittings technical field, especially a motor with telescopic end bearing cooling structure. BACKGROUND

[0002] When the motor is in normal operation, the bearing generates heat because of the continuous friction of the inner ring, the rolling body and the outer ring, although the lubricating oil and the lubricating grease are added to reduce the friction coefficient between them, but when the high speed and high load, the bearing will still generate a large amount of heat due to friction.

[0003] At the same time, because of the thermal conductivity of metal, the temperature of the bearing inner cover (bearing sleeve), bearing outer cover, shaft and end cover and other parts directly or indirectly contacted with the bearing will rise, but these generated and conducted heat is useless, and the high temperature will also affect the performance of the lubricating oil and the lubricating grease, and the high temperature of the surface of the parts will also bring the risk of scalding the workers. SUMMARY

[0004] The utility model discloses a motor with telescopic end bearing cooling structure.

[0005] In order to realize the above-mentioned utility model purpose, the utility model adopts the following technical scheme: a motor with telescopic end bearing cooling structure, which comprises a rotating shaft with a telescopic end and a tail end, a front bearing assembly installed on the telescopic end, a rear bearing assembly installed on the tail end, a cooling fan assembled on the tail end and a cooling structure assembled on the telescopic end for changing the air flow direction of the cooling fan, the cooling structure comprises a baffle extending radially relative to the rotating shaft and two opposite wing plates extending axially from the baffle.

[0006] As a further improved technical scheme of the utility model, the baffle is in the form of a semicircular ring, the front bearing assembly comprises a front bearing outer cover, a front bearing and a front bearing inner cover, and the baffle is buckled on the front bearing outer cover.

[0007] As a further improved technical scheme of the utility model, the wing plate is in the form of a circular arc.

[0008] As a further improved technical scheme of the utility model, the two wing plates are symmetrically arranged.

[0009] As a further improved technical scheme of the utility model, the cooling structure further comprises a mounting plate located between the two wing plates, and the mounting plate is provided with a plurality of screw holes.

[0010] As a further improved technical scheme of the utility model, the mounting plate is also provided with an oil injection hole, and the diameter of the oil injection hole is 30mm.

[0011] As a further improved technical scheme of the utility model, the axial length of the wing plate is at least 3 times of the axial length of the mounting plate.

[0012] As a further improved technical scheme of the utility model, the wing plate and the mounting plate are surrounded to form a space.

[0013] As a further improved technical scheme of the utility model, the motor further comprises a base, a front end cover located at the front end of the base, a tail end cover located at the rear end of the base, and a stator and a rotor accommodated in the base, the front bearing assembly is fixed to the front end cover, the rear bearing assembly is fixed to the tail end cover, the rear bearing assembly comprises a rear bearing outer cover, a rear bearing and a rear bearing inner cover, and the cooling fan is fixed to the tail end cover and the rear bearing outer cover.

[0014] As a further improved technical scheme of the utility model, the base is externally provided with a plurality of cooling fins, and part of the air flow of the cooling fan flows to the rear bearing assembly, and part of the air flow passes through the cooling fins and the cooling structure and flows to the front bearing assembly.

[0015] The utility model has the advantages that the cooling structure is assembled at the front end, is used for intercepting and changing the air flow direction of the cooling fan, and guides part of the cooling air to the front bearing assembly, so that the front bearing assembly can be cooled. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the motor with the front end bearing cooling structure of the utility model;

[0017] Figure 2 is a structural schematic view of the cooling structure of the motor with the front end bearing cooling structure of the utility model;

[0018] Figure 3 is Figure 2 a structural schematic view of another angle;

[0019] Figure 4 is Figure 2 a structural schematic view of another angle;

[0020] Figure 5 is Figure 2 a structural schematic view of another angle. DETAILED DESCRIPTION

[0021] The utility model will be described in detail below in combination with the embodiments shown in the drawings. Please refer to the drawings shown, which are the preferred embodiments of the utility model. It should be noted that these embodiments are not a limitation of the utility model, and equivalent changes or substitutions of function, method or structure made by those skilled in the art based on these embodiments are within the protection scope of the utility model.

[0022] Please refer to Figures 1 to 5 The utility model discloses a motor with extension end bearing cooling structure 100, it includes the pivot 1, front bearing assembly 2, rear bearing assembly 3, cooling fan 4, cooling structure 5, base 61, extension end cover 62, tail end cover 63, stator 71 and rotor 72.

[0023] The pivot 1 includes extension end 11 and tail end 12. Front bearing assembly 2 is installed to extension end 11, rear bearing assembly 3 is installed to tail end 12, and cooling fan 4 is assembled to tail end 12. Cooling structure 5 is assembled to extension end 11, is used to intercept and change the flow direction of the cooling fan 4, and part of the cooling wind is guided to front bearing assembly 2, so that front bearing assembly 2 can be cooled, and the risk of staff being scalded caused by the surface temperature of the part being too high can also be avoided.

[0024] Cooling structure 5 includes a baffle 51 extending radially relative to the pivot 1 and two oppositely arranged wing plates 52 extending axially from the baffle 51, which can effectively guide the cooling air. Further, the baffle 51 is in the form of a semi-circular ring to adapt to the structural shape of the extension end cover 62 and the base 61. The front bearing assembly 2 includes a front bearing outer cover 21, a front bearing 22, and a front bearing inner cover 23, and the baffle 51 is buckled to the front bearing outer cover 21, which can effectively guide the cooling air into the front bearing assembly 2 to cool the front bearing 22. The wing plates 52 are in the form of a circular arc to adapt to the structural shape of the base 61, which is beneficial for guiding the flow.

[0025] The cooling structure 5 further includes a mounting plate 53 located between the two wing plates 52, which is in the form of a circular arc. The mounting plate 53 is provided with a plurality of mounting holes 531. In this embodiment, the mounting holes 531 have four, which are arranged in pairs, and the adjacent two groups of mounting holes 531 are different by 60°. The cooling structure 5 is fixed to the extension end cover 62 by screws (not shown) through the mounting holes 531. The mounting plate 53 is also provided with an oil injection hole 532, and the diameter of the oil injection hole 532 is 30 mm.

[0026] The two wing plates 52 are symmetrically arranged. The axial length of the wing plate 52 is at least 3 times the axial length of the mounting plate 53. In one embodiment, the axial length of the wing plate 52 is 300 mm, and the axial length of the mounting plate 53 is 100 mm. The two wing plates 52 and the mounting plate 53 form a space 521 therebetween. The space 521 can ensure the rationality of the position of the two wing plates 52, and also allows other components to be located.

[0027] Please continue to refer to Figures 1 to 5 , the front end cover 62 is located in the front end of the base 61, the tail end cover 63 is located in the tail end of the base 61, the stator 71 and the rotor 72 are accommodated in the base 61. The front bearing assembly 2 is fixed to the front end cover 62, and the rear bearing assembly 3 is fixed to the tail end cover 63. The rear bearing assembly 3 comprises a rear bearing outer cover 31, a rear bearing 32 and a rear bearing inner cover 33. The cooling fan 4 is fixed to the tail end cover 63 and the rear bearing outer cover 31, and the cooling fan 4 provides cooling air for the rear bearing assembly 3.

[0028] The base 61 is provided with a plurality of cooling fins 611 on the outside; part of the air flow of the cooling fan 4 flows to the rear bearing assembly 4, and part of the air flow flows to the front bearing assembly 2 through the cooling fins 611 and the cooling structure 5, so that the cooling fan 4 provides cooling air for the front bearing assembly 2 and the rear bearing assembly 3 to continuously cool them.

[0029] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0030] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and they are not used to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A motor with a cooling structure for the extended end bearing, characterized in that, The motor comprises a rotating shaft with a front end and a rear end, a front bearing assembly mounted on the front end, a rear bearing assembly mounted on the rear end, a cooling fan assembled on the rear end, and a cooling structure assembled on the front end for changing the air flow direction of the cooling fan, wherein the cooling structure comprises a baffle extending radially relative to the rotating shaft and two opposite wing plates extending axially from the baffle. The cooling structure further comprises a mounting plate between the two wing plates, the mounting plate is provided with a plurality of screw holes and oil injection holes, and the axial length of the wing plates is at least 3 times the axial length of the mounting plate.

2. The motor having a temperature reduction structure of a long end bearing according to claim 1, characterized by, The baffle is in the shape of a semi-circular ring, the front bearing assembly comprises a front bearing outer cover, a front bearing, and a front bearing inner cover, and the baffle is buckled on the front bearing outer cover.

3. The motor having the extension end bearing cooling structure according to claim 1, characterized by, The wing plates are in the shape of circular arcs.

4. The motor having the extension end bearing cooling structure according to claim 3, characterized by, The two wing plates are symmetrically arranged.

5. The motor having a temperature reduction structure of a long end bearing according to claim 1, wherein The oil injection hole has a hole diameter of 30 mm.

6. The motor having a temperature reduction structure of a long end bearing according to claim 1, wherein The two wing plates and the mounting plate form a space.

7. The motor having a temperature reduction structure of a long end bearing according to claim 1, wherein The motor further comprises a motor base, a front end cover at the front end of the motor base, a rear end cover at the rear end of the motor base, a stator and a rotor accommodated in the motor base, the front bearing assembly is fixed on the front end cover, the rear bearing assembly is fixed on the rear end cover, the rear bearing assembly comprises a rear bearing outer cover, a rear bearing, and a rear bearing inner cover, and the cooling fan is fixed on the rear end cover and the rear bearing outer cover.

8. The motor having the extension end bearing cooling structure according to claim 7, characterized by, The motor base is provided with a plurality of cooling fins outside, part of the air flow of the cooling fan flows to the rear bearing assembly, and part of the air flow passes through the cooling fins and the cooling structure to flow to the front bearing assembly.

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