CN219282233U

CN219282233U - Welding rib shaft structure

Info

Publication number: CN219282233U
Application number: CN202320200962.6U
Authority: CN
Inventors: 史巧艳; 王文涛; 廖小兵; 王新锋
Original assignee: Lanzhou Electric Corp
Current assignee: Lanzhou Electric Corp
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-06-30
Anticipated expiration: 2033-02-09

Abstract

The utility model relates to the technical field of rotor shafts, in particular to a rib welding shaft structure, which comprises a shaft body, wherein a plurality of rib plates are uniformly arranged on the side surface of the shaft body at intervals along the circumference, an air flow gap is formed between every two adjacent rib plates, a blocking piece for guiding the air flow direction is arranged in the air flow gap, and a welded junction structure is formed at the joint of each rib plate and the blocking piece. According to the utility model, the rib plates are adopted to guide air flow to enter the ventilating duct and the air gap of the rotor, and the shape of the end parts of the rib plates is changed, so that the wind resistance of the air inlet is reduced, and the area of the air inlet is correspondingly increased, thereby reducing the temperature rise in the rotor, avoiding the motor from being damaged due to the overhigh temperature in the motor, enabling the motor to operate better, and further prolonging the effective service life of the motor.

Description

Welding rib shaft structure

Technical Field

The utility model relates to the technical field of rotor shafts, in particular to a welding rib shaft structure.

Background

The motor is a power device running at a high speed, the common motor generally adopts an inner rotor structure and an outer rotor structure, and when the inner rotor structure is adopted, the rotor positioned in the stator rapidly rotates under the action of an electromagnetic field so as to realize power output. In the operation process, a large amount of heat is generated on the rotor, so that the temperature of the motor is increased, the normal operation of the motor is influenced when the temperature exceeds a set range, even the motor is damaged, and the normal service life of the motor is influenced.

Therefore, the prior art has the scheme of adopting a mode of reserving a ventilation gap to promote the heat dissipation of the rotor shaft, so that external air flow enters an air gap between the rotor and the stator, heat generated by the rotor is taken away through the flow of the air flow, the temperature of the motor is conveniently maintained in a reasonable range, and the motor is prevented from being damaged. However, the existing heat dissipation structure has limited effect and has an upper limit of heat dissipation, and when the motor runs continuously for a certain time or under a poor working condition, the heat dissipation effect is drastically reduced, so that the continuous operation of the motor is adversely affected.

The heat dissipation structure of the motor still has a need to be improved, and the motor adopting the inner rotor structure needs to be optimized in structure, so that the effect of air flow heat dissipation in the rotor is promoted, the effective working time of the motor is prolonged, and the damage to the motor is reduced. Therefore, a more reasonable technical scheme is required to be provided, and the technical problems in the prior art are solved.

Disclosure of Invention

In order to overcome at least one of the above-mentioned drawbacks, the present utility model proposes a rib welding shaft structure, which improves the structure of a rotor shaft of a motor, increases the air intake and heat dissipation space of the rotor shaft, enables more air flow to pass through the inside of the rotor along the rotor shaft, improves the heat dissipation effect, reduces the temperature rise of the rotor, and is beneficial to improving the effective service life of the motor.

In order to achieve the above purpose, the welding rib shaft structure disclosed by the utility model can adopt the following technical scheme:

the utility model provides a weld muscle axle construction, includes the axle body, and the side surface of axle body is provided with a plurality of gusset along circumference even interval, forms the air current clearance between the adjacent gusset and is provided with the barrier that is used for guiding the air current flow direction in the air current clearance, and the gusset forms the welded junction structure with the junction of barrier.

The rib welding shaft structure disclosed by the above is used for guiding more air flows to the inside of the rotor by arranging the rib plate structure on the shaft body, so that heat in the rotor is taken out, the temperature in the rotor is reduced, and the operation and the service life of the motor are prevented from being influenced by overlarge temperature rise. The blocking piece can block and limit the air flow, so that the air flow enters the air gap and the ventilating duct to form an internal air path structure, and further the temperature rise inside the rotor is controlled.

Furthermore, the rib plate structure provided by the utility model guides the air flow, and meanwhile, the structure of the shaft body is also required to be considered, for example, the installation requirements of other structures on the shaft body are ensured. Therefore, the structure of the rib plates is optimized, rib plate combinations with different structures are adopted to serve as the matching structure of the shaft body, and the following feasible selection is provided: the rib plates comprise aligning rib plates and guiding rib plates, and the width of the aligning rib plates is larger than that of the guiding rib plates. When adopting this scheme, the width of aligning the gusset is great, can set up partial fluting structure or cooperation structure in order to satisfy the installation demand of axle body, and the width of guiding the gusset is less, mainly in order to increase rotor ventilation area, makes its air inlet area increase, through more air currents.

Further, install required structure as required on the axle body, generally adopt the keyway to connect, but be difficult to set up the keyway again and install other parts after setting up the gusset, optimize and propose one of them feasible selection here: at least one alignment rib plate is provided with an installation groove along the axial direction. When the scheme is adopted, the corresponding structure can be installed on the rib plate through the installation groove structure, and the rib plate is arranged on the circumferential surface, and the outer side surfaces of the rib plates are arranged on the same circumference, so that the stability and the reliability can be ensured when hole shaft matching is carried out.

Still further, when the rib plates are arranged, the specific number is not limited only, the adjustment and arrangement can be performed according to actual requirements, and optimization is performed and one of the possible choices is provided: the number of the aligning rib plates is two, and the side surfaces of the aligning rib plate shaft body are arranged in a central symmetry manner; the number of the guide rib plates is two, and the guide rib plates are arranged in the center of the side surface of the shaft body symmetrically. When the scheme is adopted, the alignment rib plates and the guide rib plates are uniformly arranged at intervals on the side surface of the shaft body.

Further, in the present utility model, in order to improve the smoothness of the air flow entering the rotor, and improve the heat dissipation effect, optimization is performed and one of possible choices is proposed herein: two ends of the rib plate are provided with groove structures for guiding air flow to enter the air flow gap. When the scheme is adopted, the groove structure can guide air flow, the blocking effect of the end face of the rib plate on the air flow is reduced, and then the air flow entering the rotor is improved, and the heat dissipation effect is enhanced.

Further, in the present utility model, the direction of the groove structure may be set according to the requirement of the flow guiding, and the direction is not limited only, and optimization is performed herein and one possible choice is given as follows: the groove structure comprises guide inclined planes arranged on two side surfaces of the rib plate, and the guide inclined planes on the two side surfaces are intersected and smoothly transited at the intersection. When the scheme is adopted, the shape of the end part of the rotor rib is changed, wind resistance is reduced, and the groove structure can be symmetrically arranged on two side surfaces of the rib plate, so that the guiding quantity of air flow is the same.

Furthermore, in the utility model, a certain welded junction structure is arranged to enable air flow to enter the air flow gap and be guided between the punching sheets so as to realize heat dissipation; the welded junction structure is arranged between the rib plate and the blocking piece, the specific arrangement mode is not limited only, and optimization is carried out and one of the possible choices is provided: one side of the rib plate attaching shaft body is provided with a rib chamfering structure, and the rib chamfering structure enables the rib plate and the blocking piece to form a welded junction structure after being welded. When the scheme is adopted, the rib chamfering structure can be arranged into a round chamfer or a straight chamfer.

Still further, when providing a weld bead structure on the barrier, optimization is performed and one possible option is presented as follows: one side of blocking piece and axle body laminating be provided with the board chamfer structure, board chamfer structure makes between blocking piece and the gusset form the welded junction structure after through the welding. When the scheme is adopted, the plate chamfering structure can adopt round chamfering or straight chamfering.

Still further, when setting up other mounting structures on the base plate, carry out the circumference through the mounting groove spacing, in order to avoid appearing axial displacement simultaneously, optimize and propose one of them feasible selection here: the rib plates are provided with limiting grooves, and the limiting grooves of the adjacent rib plates are positioned on the circumferential surface of the concentric circle of the shaft body. When the scheme is adopted, the limiting grooves are positioned at the two ends of the mounting groove.

Further, in the present utility model, the structure of the blocking member is not limited only, and it may be constructed in various possible ways, where optimization is performed and one of possible choices is proposed: the blocking piece comprises a fan-shaped air blocking plate, the air blocking plate and the shaft body are coaxially arranged, and two sides of the air blocking plate are attached to the rib plates. When the scheme is adopted, the inner annular surface of the air blocking plate is attached to the side surface of the shaft body, and the outer annular surface of the air blocking plate does not exceed the top surface of the rib plate.

Compared with the prior art, the technical scheme disclosed by the utility model has the following partial beneficial effects:

according to the utility model, the rib plates are adopted to guide air flow to enter the ventilating duct and the air gap of the rotor, and the shape of the end parts of the rib plates is changed, so that the wind resistance of the air inlet is reduced, and the area of the air inlet is correspondingly increased, thereby reducing the temperature rise in the rotor, avoiding the motor from being damaged due to the overhigh temperature in the motor, enabling the motor to operate better, and further prolonging the effective service life of the motor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the overall structure of a rotor shaft.

Fig. 2 is an enlarged schematic view of a partial structure at a in fig. 1.

Fig. 3 is a schematic front view of a rotor shaft.

Fig. 4 is an enlarged schematic view of a partial structure at B in fig. 3.

Fig. 5 is a schematic top view of a rotor shaft.

Fig. 6 is a schematic side view of a rotor shaft.

In the above figures, the meaning of each symbol is:

1. a shaft body; 2. rib plates; 201. aligning the rib plates; 202. a guide rib plate; 203. a groove structure; 3. a blocking member; 4. a mounting groove; 5. a limit groove; 6. and (5) a welded junction structure.

Detailed Description

The utility model is further illustrated by the following description of specific embodiments in conjunction with the accompanying drawings.

Aiming at the situation that the existing motor has limited heat dissipation effect and the air flow enters the air gap between the motor rotor and the stator to cool down is poor, the following embodiments are optimized to overcome the defects in the prior art.

Examples

As shown in fig. 1, 3 and 5, the embodiment provides a rib welding shaft structure, which comprises a shaft body 1, wherein a plurality of rib plates 2 are uniformly arranged on the side surface of the shaft body 1 along the circumference at intervals, an air flow gap is formed between every two adjacent rib plates 2, a blocking piece 3 for guiding the air flow direction is arranged in the air flow gap, and a welding port structure 6 is formed at the joint of each rib plate 2 and the corresponding blocking piece 3.

Preferably, in this embodiment, the rib plate 2 and the shaft body 1 are connected and fixed by adopting a welding mode.

The rib welding shaft structure disclosed by the above is characterized in that the rib plate 2 structure is arranged on the shaft body 1 and used for guiding air flow to pass through the rotor, so that heat in the rotor is taken out, the temperature in the rotor is reduced, and the operation and the service life of a motor are prevented from being influenced by overlarge temperature rise. The blocking piece 3 can block and limit the air flow, so that the air flow enters the air gap along the rotor ventilating duct and takes away heat in the stator, and the temperature rise in the rotor is convenient to control.

The rib plate 2 structure is arranged to guide air flow, and meanwhile, the structure of the shaft body 1 is also required to be considered, for example, the installation requirements of other structures on the shaft body 1 are guaranteed. Therefore, the structure of the rib plates 2 is optimized, and rib plate 2 combinations with different structures are adopted as the matching structure of the shaft body 1, so that the following feasible selection is provided: as shown in fig. 2 and 6, the rib plate 2 includes an alignment rib plate 201 and a guide rib plate 202, and the width of the alignment rib plate 201 is larger than that of the guide rib plate 202. With such a scheme, the alignment rib 201 has a larger width, and a partial grooving structure or a matching structure can be provided to meet the installation requirement of the shaft body 1, while the guiding rib 202 has a smaller width and is mainly used for guiding air flow.

Preferably, in this embodiment, the width of the aligning rib 201 is set to 50mm, the width of the guiding rib 202 is set to 30mm, and the heights of the aligning rib 201 and the guiding rib 202 are 45mm.

The required structure of installation as required on the axle body 1 adopts the keyway to connect generally, but is difficult to set up other parts of keyway installation at the middle part of axle after setting up gusset 2, optimizes and proposes one of them feasible option here: as shown in fig. 1 to 4, at least one of the alignment rib plates 201 is provided with an installation groove 4 in the axial direction. When adopting this scheme, can install the gusset 2 with corresponding structure through mounting groove 4 structure, because gusset 2 sets up on the periphery, and the outside surface of gusset 2 is on same circumference, consequently can guarantee reliable and stable when carrying out hole axle and joining in marriage.

Preferably, as shown in fig. 2 to 4, the mounting groove 4 is a C-shaped groove, and the structure thereof is the same as that of the C-shaped key groove on the shaft.

When the rib plates 2 are arranged, the specific number is not limited only, and the adjustment and the arrangement can be carried out according to actual requirements, and the embodiment is optimized and adopts one of the feasible choices: the number of the aligning rib plates 201 is two, and the side surfaces of the shaft body 1 of the aligning rib plates 201 are arranged in a central symmetry manner; the number of the guide rib plates 202 is two, and the guide rib plates 202 are symmetrically arranged on the center of the side surface of the shaft body 1. By adopting such a scheme, the alignment rib plates 201 and the guide rib plates 202 are uniformly arranged at intervals on the side surface of the shaft body 1.

In order to improve smoothness of air flow entering the rotor and improve heat dissipation effect, the embodiment optimizes and adopts one of the possible choices: two ends of the rib plate 2 are provided with groove structures 203 for guiding air flow into the air flow gap. By adopting the scheme, the groove structure 203 can guide air flow, reduce the blocking effect of the end face of the rib plate 2 on the air flow, further improve the air flow entering the rotor and enhance the heat dissipation effect.

Preferably, in this embodiment, the direction of the groove structure 203 may be set according to the requirement of the flow guiding, and the direction is not limited only, and may be optimized and one of possible choices may be adopted herein: the groove structure 203 comprises guide inclined planes arranged on two side surfaces of the rib plate 2, and the guide inclined planes on the two side surfaces are intersected and smoothly transited at the intersection. By adopting the scheme, the groove structures 203 can be symmetrically arranged on the two side surfaces of the rib plate 2 so as to lead the air flow to be the same.

Preferably, the guide inclined surfaces on the alignment rib plate 201 and the guide rib plate 202 can be plane surfaces or arc surfaces, the length of the guide inclined surfaces is 50mm, and the guide inclined angle is 45 degrees.

In the embodiment, a certain welded junction structure is arranged to enable air flow to conveniently enter an air flow gap and enter between punching sheets so as to realize heat dissipation of the rotor; the weld structure may be provided between the web 2 and the barrier 3, not limited to only, and this embodiment is optimized and uses one of the possible options: one side of the rib plate 2 attached to the shaft body 1 is provided with a rib chamfering structure, and the rib chamfering structure enables the rib plate 2 and the blocking piece 3 to form a welded junction structure 6 through welding. When the scheme is adopted, the rib chamfering structure can be arranged into a round chamfer or a straight chamfer.

When providing a weld opening structure on the barrier 3, one possible option may be optimized and adopted as follows: one side of blocking piece 3 and laminating of axle body 1 be provided with the board chamfer structure, board chamfer structure makes between blocking piece 3 and the gusset 2 through welding formation welded junction structure 6. When the scheme is adopted, the plate chamfering structure can adopt round chamfering or straight chamfering.

When setting up other mounting structures on the base plate, carry out the circumference through mounting groove 4 spacing, in order to avoid appearing axial displacement simultaneously, optimize and adopt one of them feasible selection here: the rib plates 2 are provided with limit grooves 5, and the limit grooves 5 of the adjacent rib plates 2 are positioned on the concentric circumferential surface of the shaft body 1. When the scheme is adopted, the limit grooves 5 are positioned at the two ends of the mounting groove 4.

In the present embodiment, the structure of the blocking member 3 is not limited only, and it can be constructed in a number of possible ways, here optimized and with one of the possible options: the blocking piece 3 comprises a fan-shaped air blocking plate, the air blocking plate and the shaft body 1 are coaxially arranged, and two sides of the air blocking plate are attached to the rib plates 2. When the scheme is adopted, the inner annular surface of the air blocking plate is attached to the side surface of the shaft body 1, and the outer annular surface of the air blocking plate does not exceed the top surface of the rib plate 2.

The above is an embodiment exemplified in this example, but this example is not limited to the above-described alternative embodiments, and a person skilled in the art may obtain various other embodiments by any combination of the above-described embodiments, and any person may obtain various other embodiments in the light of this example. The above detailed description should not be construed as limiting the scope of the present embodiments, which is defined in the appended claims.

Claims

1. The utility model provides a weld muscle axle construction which characterized in that: including axle body (1), the side surface of axle body (1) is provided with a plurality of gusset (2) along circumference even interval, forms the air current clearance between adjacent gusset (2) and is provided with in the air current clearance and is used for guiding the barrier (3) of air current flow direction, and the junction of gusset (2) and barrier (3) forms welded junction structure (6).

2. The weld bar shaft structure according to claim 1, wherein: the rib plates (2) comprise aligning rib plates (201) and guide rib plates (202), and the width of the aligning rib plates (201) is larger than that of the guide rib plates (202).

3. The weld bar shaft structure according to claim 2, wherein: at least one alignment rib plate (201) is provided with an installation groove (4) along the axial direction.

4. A weld bar shaft structure according to claim 2 or 3, wherein: the number of the aligning rib plates (201) is two, and the aligning rib plates (201) are symmetrically arranged at the center of the side surface of the shaft body (1); the number of the guide rib plates (202) is two, and the guide rib plates (202) are arranged in the center of the side surface of the shaft body (1) symmetrically.

5. The weld bar shaft structure according to claim 1, wherein: two ends of the rib plate (2) are provided with groove structures (203) for guiding air flow to enter the air flow gap.

6. The weld bar shaft structure according to claim 5, wherein: the groove structure (203) comprises guide inclined planes arranged on two side surfaces of the rib plate (2), and the guide inclined planes on the two side surfaces are intersected and smoothly transited at the intersection.

7. The weld bar shaft structure according to claim 1, wherein: one side of the rib plate (2) attached to the shaft body (1) is provided with a rib chamfering structure, and the rib chamfering structure enables the rib plate (2) and the blocking piece (3) to form a welded junction structure (6) through welding.

8. The weld bar shaft structure according to claim 1, wherein: the rib plates (2) are provided with limiting grooves (5), and the limiting grooves (5) of the adjacent rib plates (2) are positioned on the circumferential surfaces of the concentric circles of the shaft body (1).

9. The weld bar shaft structure according to claim 1, wherein: one side of blocking piece (3) and laminating of axle body (1) be provided with board chamfer structure, board chamfer structure makes blocking piece (3) and gusset (2) form welded junction structure (6) through the welding.

10. The weld bar shaft structure according to claim 1, wherein: the blocking piece (3) comprises a fan-shaped air blocking plate, the air blocking plate and the shaft body (1) are coaxially arranged, and two sides of the air blocking plate are attached to the rib plates (2).