CN216895071U

CN216895071U - Assembling equipment for fan of explosion-proof motor

Info

Publication number: CN216895071U
Application number: CN202220276935.2U
Authority: CN
Inventors: 陈亮
Original assignee: Suzhou Special Motor Factory Co ltd
Current assignee: Suzhou Special Motor Factory Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-07-05
Anticipated expiration: 2032-02-11

Abstract

The utility model discloses an assembling device of a fan of an explosion-proof motor, aiming at the problem that the rotation surface of the fan is not vertical to the axis of a rotating shaft, the utility model provides the following technical scheme, which comprises a base, an upper cover connected with the top surface of the base, a push rod and a compression rod connected with the push rod; the base is provided with a concave hole for the stator to extend into, the bottom surface of the concave hole of the base is arranged along the horizontal direction, and the side surface of the concave hole of the base is in extremely small clearance fit with the stator; the upper cover is provided with a square hole for the push rod to slide along the gravity direction, the push rod is in threaded connection with a nut, and the nut is rotationally connected to the upper cover; the compression bar is coaxial with the concave hole of the base, and one end of the compression bar, which is close to the base, is arranged along the horizontal direction and is abutted against the top end of the fan seat. The axes of the stator, the rotating shaft, the pressure rod and the fan seat are all arranged along the gravity direction, the horizontal plane of the pressure rod is abutted against the fan seat, and when the fan seat is pressed, the rotating surface of the fan is always perpendicular to the axis of the rotating shaft, so that the assembly precision is improved, and the vibration between the fan rotating at a high speed and the rotating shaft is reduced.

Description

Assembling equipment for fan of explosion-proof motor

Technical Field

The utility model relates to the technical field of motors, in particular to assembling equipment of a fan of an explosion-proof motor.

Background

The explosion-proof motor is a motor which can be used in flammable and explosive plants, and does not generate electric sparks during operation. The explosion-proof motor is mainly used in coal mine, petroleum and natural gas, petrochemical industry and chemical industry. In addition, the method is widely applied to the departments of textile, metallurgy, urban gas, transportation, grain and oil processing, paper making, medicine and the like. The explosion-proof motor is used as main power equipment, is generally used for driving a pump, a fan, a compressor and other transmission machinery, is internally provided with a fan for heat dissipation, and comprises a fan seat connected with a rotating shaft and fan blades fixed on the fan seat, wherein the side surface of the fan seat is parallel to the rotating surface of the fan.

At present, large-scale explosion proof machine's fan is great, when assembling to the pivot, needs a plurality of workman to move the fan usually, because be interference fit between fan seat and the pivot, difficult assembly to the bearing on, in addition, the fan of plastics is difficult for guaranteeing the straightness that hangs down between the plane of rotation of fan and the axis of pivot in the assembling process, and manual installation is difficult, consequently, has the space of improvement.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the fan assembling equipment of the explosion-proof motor, which has the advantages of high perpendicularity assembling precision between the rotating surface of the fan and the axis of the rotating shaft and easiness in assembling an end cover on a bearing.

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

an assembling device for a fan of an explosion-proof motor comprises a base, an upper cover connected with the top surface of the base, a push rod and a pressure rod connected with the push rod; the base is provided with a concave hole for the stator to extend into, the hole bottom surface of the concave hole of the base is arranged along the horizontal direction, and the hole side surface of the concave hole of the base is in minimal clearance fit with the stator; the upper cover is provided with a square hole for the push rod to slide along the gravity direction, the push rod is in threaded connection with a nut, and the nut is rotationally connected to the upper cover; the depression bar is coaxial with the shrinkage pool of base, the one end that is close to the base of depression bar sets up and supports with the top of fan seat along the horizontal direction and leans on.

By adopting the technical scheme, the nut is rotated, the nut drives the push rod to rotate, the push rod drives the press rod to translate along the direction of gravity towards the fan seat under the guide of the square hole of the upper cover, and the press rod is abutted against the top end of the fan seat to press the fan seat on the rotating shaft. The end face of the stator is placed on the bottom surface of the concave hole of the horizontal base, so that the axes of the stator and the rotating shaft are arranged along the gravity direction. The depression bar is coaxial with the shrinkage pool of base, and minimum clearance fit between the hole side of the shrinkage pool of base and the stator, therefore, the depression bar is coaxial with pivot and fan seat, all set up along the direction of gravity, guarantee the depression bar and evenly press the top at the fan seat, and the horizontal plane of depression bar supports with the fan seat and lean on, guarantee the in-process of impressing the fan seat, the rotatory face of fan is all the time perpendicular with the axis of pivot, improve the equipment precision, avoid because the fan of plastics is at the incline of the in-process of impressing and the through-hole grow of the fan seat that leads to, avoid the clearance grow between fan seat and the pivot, thereby avoid producing the vibration between high-speed pivoted fan and the pivot, thereby avoid the vibration of motor, reduce the electric spark, reduce the probability of explosion. Minimum clearance fit between the shrinkage pool of stator and base guarantees that the fan packs into the in-process of pivot, and the position of stator is motionless for the base, makes the relative position between the depression bar of fan seat motionless relatively, improves the equipment precision of fan.

Further, the depression bar is equipped with the recess that supplies the pivot to stretch into.

By adopting the technical scheme, the pressing rod is abutted to the top end of the fan seat and is pressed towards the direction of the rotating shaft, the groove of the pressing rod is used for the rotating shaft to yield, and the situation that the fan seat cannot be pressed into the specified position of the rotating shaft due to the fact that the rotating shaft is abutted to the pressing rod is avoided.

Furthermore, the push rod is detachably connected with the pressure rod.

By adopting the technical scheme, the size of the pressure lever is changed according to the size of the fan base, and the practicability of the device is improved.

Furthermore, the pressure lever is in threaded connection with the push rod.

By adopting the technical scheme, the threaded connection is convenient for assembly and disassembly between the pressing rod and the push rod, and the practicability of the device is improved.

Further, the base is fixedly provided with a support, and the upper cover is detachably connected with the support.

Adopt above-mentioned technical scheme, the support realizes the upper cover fixed in the base top to the part that the support covered on with supports on the base, provides the holding power for the fan of impressing, increases the practicality of device, can dismantle between upper cover and the support and be connected, and the fan of being convenient for, stator and pivot are installed in the base.

Furthermore, the upper cover is provided with a groove for the end part of the bracket to extend into, and the groove of the upper cover is in minimum clearance fit with the bracket.

By adopting the technical scheme, the upper cover and the support are in minimum clearance fit, so that the part connected with the upper cover in the assembling process is limited along the freedom degree of the horizontal direction, the freedom degree of the upper cover along the horizontal direction is limited, the movement of the upper cover relative to the base caused by the reaction force of the push rod on the nut is avoided, and the assembling precision is improved.

Further, the upper cover is connected with the support through bolts.

By adopting the technical scheme, the bolt connection facilitates the assembly and disassembly between the upper cover and the bracket, and the practicability of the device is improved.

Further, the nut is provided with a handle.

By adopting the technical scheme, the handle is held by hand to rotate the nut, so that the nut is convenient to rotate and use.

In conclusion, the utility model has the following beneficial effects:

1. the end face of the stator is placed on the bottom face of the hole of the concave hole of the horizontal base, so that the axes of the stator and the rotating shaft are arranged along the gravity direction. Because the compression bar is coaxial with the concave hole of the base, and the concave hole of the base is in minimal clearance fit with the stator, the compression bar is coaxial with the rotating shaft and the fan seat and is arranged along the gravity direction, the compression bar is guaranteed to be uniformly pressed on the top end of the fan seat, the horizontal plane of the compression bar is abutted against the fan seat, and in the process of pressing the fan seat in, the rotating surface of the fan is always vertical to the axis of the rotating shaft, so that the assembly precision is improved, the vibration generated between the fan rotating at high speed and the rotating shaft is reduced, the explosion probability is reduced, and the noise is also reduced;

2. the nut can be rotated by manually rotating the handle, the nut is meshed with the push rod, and the push rod drives the press rod to press the fan seat, so that the fan seat is pressed into the rotating shaft.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

fig. 2 is a sectional view of the push rod of the present embodiment.

In the figure: 1. a base; 2. a support; 3. an upper cover; 4. a push rod; 5. a nut; 6. a pressure lever; 51. a handle; 11. a stator; 12. a rotor; 13. a rotating shaft.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

An assembling device of a fan of an explosion-proof motor, which is shown in figure 1, comprises a disc-shaped base 1, a bracket 2 fixedly arranged on the top surface of the base 1 and a disc-shaped upper cover 3.

Referring to fig. 2, the top surface of the base 1 is horizontally disposed and provided with a concave hole for the stator 11 to extend into, the bottom surface of the concave hole of the base 1 is horizontally disposed, and the outer cylindrical surface of the stator 11 is in minimal clearance fit with the inner hole surface of the concave hole of the base 1. Base 1's top surface still is equipped with the little concave hole that supplies pivot 13 to stretch into, and the hole bottom surface of little concave hole supports each other with the terminal surface of pivot 13 and leans on, minimum clearance fit between the face of cylinder of the hole side of little concave hole and pivot 13, and the hole axle of little concave hole sets up along direction of gravity, leaves the clearance between the terminal surface that is close to base 1 of rotor 12 and base 1's the top surface.

Referring to fig. 2, the support 2 is in the shape of four rods uniformly distributed along the circumferential direction of the base 1, the four rods of the support 2 are perpendicular to the top surface of the base 1, the upper cover 3 is arranged on the top end of the support 2, four grooves for the top end of the support 2 to extend into are arranged on the bottom side of the upper cover 3 along the circumferential direction, and the side surfaces of the grooves are in minimum clearance fit with the side surfaces of the support 2. The face of cylinder equipartition of upper cover 3 has four screw holes along the radial setting of upper cover 3, and four supports 2 all are equipped with the screw hole coaxial with the screw hole of upper cover 3, and equal threaded connection has the bolt in the screw hole of support 2 and the correspondence of upper cover 3.

Referring to fig. 2, the upper cover 3 is provided with a push rod 4 with an axis arranged along the gravity direction, the upper cover 3 is coaxial with the push rod 4, the push rod 4 is in threaded connection with a nut 5, and the nut 5 is rotatably connected to the upper cover 3 through a bearing. A handle 51 is fixedly arranged at the top end of the nut 5.

Referring to fig. 2, the section of the push rod 4 in the radial direction is in the form of a circle segment with two straight lines parallel to each other, i.e. the push rod 4 has two parallel circle segments arranged in the axial direction. The upper cover 3 is provided with a square hole for the push rod 4 to slide along the gravity direction, and two circle cutting planes of the push rod 4 are connected with two hole side surfaces of the square hole in a sliding manner respectively.

Referring to fig. 2, the bottom end threaded connection of push rod 4 has depression bar 6, and is coaxial between depression bar 6 and the push rod 4, and depression bar 6 is coaxial with the shrinkage pool of base 1, and the bottom of depression bar 6 is equipped with the recess that supplies pivot 13 to stretch into, and the bottom of depression bar 6 sets up and supports with the top of fan seat along the horizontal direction and leans on, and the top of depression bar 6 is equipped with the screw hole that supplies push rod 4 threaded connection.

Referring to fig. 2, the working steps are as follows: the upper cover 3 is opened, the rotating shaft 13 of the motor is placed in the small concave hole of the base 1, the rotating shaft 13 of the motor is arranged along the gravity direction, the through hole of the fan seat is aligned to the rotating shaft 13, the four grooves of the upper cover 3 are aligned to the four supports 2 respectively, the bottom end of the pressing rod 6 is aligned to the top side of the fan seat, and the four bolts of the upper cover 3 are screwed. Rotating handle 51, handle 51 drive nut 5 rotates, and nut 5 and push rod 4 meshing, the cyclotomy plane of push rod 4 slide in the square hole of upper cover 3, make push rod 4 downstream to drive depression bar 6 downstream, depression bar 6 promotes the fan seat and removes, and the installation of completion fan on pivot 13 is supported to the shaft shoulder that moves to and pivot 13. The handle 51 is rotated in the reverse direction to reverse the nut 5, and the push rod 4 and the press rod 6 are moved upward. And finally, unscrewing the bolt, opening the upper cover 3 and taking out the motor.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides an equipment of explosion proof machine's fan which characterized in that: comprises a base (1), an upper cover (3) connected with the top surface of the base (1), a push rod (4) and a pressure lever (6) connected with the push rod (4); the stator structure is characterized in that the base (1) is provided with a concave hole for the stator (11) to extend into, the bottom surface of the concave hole of the base (1) is arranged along the horizontal direction, and the side surface of the concave hole of the base (1) is in minimal clearance fit with the stator (11); the upper cover (3) is provided with a square hole for the push rod (4) to slide along the gravity direction, the push rod (4) is in threaded connection with a nut (5), and the nut (5) is rotationally connected with the upper cover (3); the depression bar (6) is coaxial with the shrinkage pool of base (1), the one end that is close to base (1) of depression bar (6) sets up and supports with the top of fan seat along the horizontal direction and leans on.

2. The assembling apparatus of a fan of an explosion-proof motor according to claim 1, wherein: the compression bar (6) is provided with a groove for the rotating shaft (13) to extend into.

3. The assembling apparatus of a fan of an explosion-proof motor according to claim 2, wherein: the push rod (4) is detachably connected with the pressure rod (6).

4. The assembling apparatus of a fan of an explosion-proof motor according to claim 3, wherein: the pressure lever (6) is in threaded connection with the push rod (4).

5. The assembling apparatus of a fan of an explosion-proof motor according to claim 1, wherein: the base (1) is fixedly provided with a support (2), and the upper cover (3) is detachably connected with the support (2).

6. The assembling apparatus of a fan of an explosion-proof motor according to claim 5, wherein: the upper cover (3) is provided with a groove for the end part of the bracket (2) to extend into, and the groove of the upper cover (3) is in clearance fit with the bracket (2) in a minimum mode.

7. The assembling apparatus of a fan of an explosion-proof motor according to claim 6, wherein: the upper cover (3) is connected with the bracket (2) through bolts.

8. The assembling apparatus of a fan of an explosion-proof motor according to claim 1, wherein: the nut (5) is provided with a handle (51).