CN210649968U

CN210649968U - Grinding device for carbon brush of motor

Info

Publication number: CN210649968U
Application number: CN201920911788.XU
Authority: CN
Inventors: 郭占魁; 赵福信
Original assignee: Xi'an Huaxin Railway Tech Ltd
Current assignee: Xi'an Huaxin Railway Tech Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-06-02
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a grinding device for a motor carbon brush, which comprises a cabinet body and a table top arranged above the cabinet body, wherein an asynchronous motor and a carbon brush grinding assembly are arranged above the table top; the carbon brush grinding assembly comprises a main shaft which is transversely arranged, a grinding wheel is sleeved on the outer side of the main shaft, a carbon brush holder is sleeved on the outer side of the grinding wheel, and the lower end of the carbon brush holder is arranged on the table top; the carbon brush holder is provided with at least one assembling hole for installing the carbon brush, and the central line of the assembling hole is vertical to the tangent line of the outer circumferential surface of the grinding wheel; one end of the main shaft is also connected with the output end of the asynchronous motor. The utility model discloses a change grinder's overall structure for can set up a plurality of pilot holes that are used for installing the carbon brush on the carbon brush holder of horizontal setting, thereby can realize the purpose of grinding the motor carbon brush in batches, the carbon brush that the single can grind simultaneously is in large quantity, and grinding efficiency is high, and the grinding cost is lower.

Description

Grinding device for carbon brush of motor

Technical Field

The utility model relates to a motor overhauls technical field, concretely relates to motor carbon brush grinder.

Background

At present, a brush motor is used in a large scale in the field of power generation due to the advantages of small running sound, no spark, long service life, high speed and the like, and the replacement work of a carbon brush is indispensable in the daily overhaul and maintenance of the motor. When the carbon brush is replaced, tools such as sand paper and the like are generally needed to manually grind the motor carbon brush, the precision of the grinding mode cannot be guaranteed, and the efficiency is low.

In the prior art, the quick grinding operation of the carbon brush can be realized by less grinding equipment for the carbon brush of the motor, however, the structural arrangement of the grinding equipment is unreasonable, so that the number of the carbon brushes which can be simultaneously ground at a time is small, the grinding efficiency is low, and the grinding cost is high. In addition, the problems of large volume, high noise, complex disassembly and assembly process, unclean dust removal and the like exist, so that the carbon brush grinding machine is difficult to be widely used in a large-scale carbon brush grinding work area.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a motor carbon brush grinder to solve the carbon brush that the motor carbon brush grinding device single among the prior art can grind simultaneously small in quantity, make grinding efficiency low, grind into this higher problem.

The embodiment of the utility model provides a motor carbon brush grinding device, which comprises a cabinet body and a table top arranged above the cabinet body, wherein an asynchronous motor and a carbon brush grinding assembly are arranged above the table top;

the carbon brush grinding assembly comprises a transversely arranged main shaft, a grinding wheel is sleeved on the outer side of the main shaft, a carbon brush holder is sleeved on the outer side of the grinding wheel, and the lower end of the carbon brush holder is arranged on the table board; the carbon brush holder is provided with at least one assembling hole for installing a carbon brush, and the central line of the assembling hole is vertical to the tangent line of the outer circumferential surface of the grinding wheel; one end of the main shaft is also connected with the output end of the asynchronous motor.

As the utility model discloses an preferred mode, the carbon brush is held and is equipped with at least a set of pilot hole along its axis direction, and same equipment pilot hole is followed the circumferencial direction setting of carbon brush is held.

As the utility model discloses a preferred mode, the contained angle between two adjacent pilot holes is the same in the same equipment pilot hole.

As an optimal mode of the utility model, the top of pilot hole is equipped with and is used for compressing tightly the carbon brush cap of carbon brush, the below of carbon brush cap still is equipped with the elastic component.

As a preferable mode of the utility model, a powder collecting component is arranged below the table-board;

the powder collecting assembly comprises an axial flow motor and at least one dust removing air pipe, the axial flow motor is arranged in the cabinet body and connected with one end of the dust removing air pipe, and the other end of the dust removing air pipe penetrates through the table board and then extends into the carbon brush holder and is positioned under the grinding wheel.

As an optimal mode of the utility model, the last dust bag that still is equipped with of axial flow motor.

As a preferable mode of the utility model, one side of the cabinet body is also provided with a control component;

the control assembly comprises a control element and a control panel, the control element is connected with the control panel, and the control panel respectively controls the asynchronous motor and the axial flow motor.

As the utility model discloses an preferred mode, the both ends of main shaft are fixed through two posture bearing framves respectively, the emery wheel with the joint is held to the carbon brush two between the bearing frame.

As an optimal mode of the present invention, one end of the main shaft is connected to the output end of the asynchronous motor through the belt pulley.

As the preferred mode of the utility model, a gap is arranged between the grinding wheel and the carbon brush holder.

The embodiment of the utility model provides a pair of motor carbon brush grinder, overall structure through changing grinder, especially the bistrique structure among the carbon brush grinding assembly, the emery wheel is established to main shaft outside cover that transversely sets up promptly, establish the carbon brush holder again in emery wheel outside cover for can set up a plurality of pilot holes that are used for installing the carbon brush on the carbon brush holder of transversely setting, thereby can realize the purpose of grinding the motor carbon brush in batches, the carbon brush that the single can grind simultaneously is in large quantity, and the grinding efficiency is high, and the grinding cost is lower.

And simultaneously, the embodiment of the utility model provides a pair of motor carbon brush grinder, the structure sets up rationally, has still reached the purpose of reducing volume, easy dismounting.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a grinding apparatus for carbon brushes of an electric motor according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of a grinding apparatus for carbon brushes of an electric motor according to an embodiment of the present invention;

fig. 3 is an internal structural schematic diagram of a carbon brush grinding assembly in a grinding device for carbon brushes of a motor according to an embodiment of the present invention.

The device comprises a cabinet body 1, a cabinet body 2, a table top 3, an asynchronous motor 4, a spindle 5, a grinding wheel 6, a carbon brush holder 7, a carbon brush 8, an assembly hole 9, a bearing seat 10, a belt pulley 11, a carbon brush cap 12, an elastic piece 13, an axial flow motor 14, a dust removal air pipe 15, a dust removal filter bag 16 and a control panel.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Referring to fig. 1 to 3, an embodiment of the present invention discloses a motor carbon brush grinding device, which includes a cabinet 1 and a table top 2 disposed above the cabinet 1, wherein an asynchronous motor 3 and a carbon brush grinding assembly are disposed above the table top 2; the carbon brush grinding assembly comprises a spindle 4 transversely arranged, a grinding wheel 5 is sleeved on the outer side of the spindle 4, a carbon brush holder 6 is sleeved on the outer side of the grinding wheel 5, and the lower end of the carbon brush holder 6 is arranged on the table top 2; the carbon brush holder 6 is provided with at least one assembling hole 8 for installing the carbon brush 7, and the central line of the assembling hole 8 is vertical to the tangent line of the outer circumferential surface of the grinding wheel 5; one end of the main shaft 4 is also connected with the output end of the asynchronous motor 3.

In this embodiment, a grinding device for carbon brushes of a motor includes a cabinet, which is hollow and has a table top disposed above the cabinet. The table top is generally made of stainless steel materials, has good bearing capacity and can prevent rusting. The integral device adopts a cabinet type structure, and can effectively avoid noise generated by vibration.

The asynchronous motor and the carbon brush grinding assembly are arranged above the table board and are transversely arranged side by side, so that the arrangement structure is compact, the space can be effectively saved, and the arrangement is also favorable for enabling the carbon brush grinding assembly to grind a plurality of carbon brushes at one time. The output end of the asynchronous motor is connected with one end of the main shaft and can drive the main shaft to rotate. In order to achieve a better grinding effect, the asynchronous motor adopts a capacitor starting type asynchronous motor.

Specifically, in a grinding head structure in the carbon brush grinding assembly, a grinding wheel is sleeved on the outer side of a transversely arranged main shaft, and the grinding wheel can be driven by the main shaft to rotate along with the main shaft. The outer side of the grinding wheel is sleeved with a carbon brush holder, the lower end of the carbon brush holder is arranged on the table top and does not rotate along with the main shaft, and the carbon brush holder is convenient to mount and dismount. A plurality of assembling holes for installing carbon brushes can be transversely arranged on the transversely arranged carbon brush holder, so that a large number of carbon brushes can be simultaneously ground at one time, the grinding efficiency is high, and the grinding cost is low; meanwhile, the central line of the assembly hole is perpendicular to the tangent line of the outer circumferential surface of the grinding wheel, so that when the carbon brush is installed in the assembly hole, the lower end face of the carbon brush can be tangent to the outer circumferential surface of the grinding wheel, and the grinding precision and the grinding effect can be improved.

After the plurality of carbon brushes are respectively installed in the assembling holes, the asynchronous motor is started, the output end of the asynchronous motor drives the main shaft to rotate, and the main shaft drives the grinding wheel to rotate, so that the grinding operation on the plurality of carbon brushes can be realized simultaneously.

The embodiment of the utility model provides a pair of motor carbon brush grinder, overall structure through changing grinder, especially the bistrique structure among the carbon brush grinding assembly, the emery wheel is established to main shaft outside cover that transversely sets up promptly, establish the carbon brush holder again in emery wheel outside cover for can set up a plurality of pilot holes that are used for installing the carbon brush on the carbon brush holder of transversely setting, thereby can realize the purpose of grinding the motor carbon brush in batches, the carbon brush that the single can grind simultaneously is in large quantity, and the grinding efficiency is high, and the grinding cost is lower. Meanwhile, the structure is reasonable, and the purposes of reducing the volume and being convenient to disassemble and assemble are achieved.

Preferably, two ends of the main shaft 4 are respectively fixed through two bracket type bearing seats 9, and the grinding wheel 5 and the carbon brush holder 6 are clamped between the two bearing seats 9.

Specifically, the main shaft adopts a two-end bearing seat positioning mode, and the grinding wheel and the carbon brush holder are clamped between the two bearing seats, so that the lower end face of the grinding wheel and the lower end face of the carbon brush are prevented from being not attached, and the grinding precision of the carbon brush can be effectively improved.

Preferably, one end of the main shaft 4 is connected with the output end of the asynchronous motor 3 through a pulley 10.

Specifically, the main shaft is connected with the asynchronous motor through the belt pulley, power transmission is fast, and disassembly and assembly are convenient. The asynchronous motor drives the main shaft to rotate through belt transmission, so that the grinding wheel mounted on the main shaft is driven to rotate, and grinding operation of the motor carbon brush can be achieved.

Preferably, a gap is provided between the grinding wheel 5 and the carbon brush holder 6.

Specifically, a gap is left between the grinding wheel and the carbon brush holder, so that carbon powder generated after the carbon brush is ground by the grinding wheel can fall from the gap.

On the basis of the above embodiment, further, the carbon brush holder 6 is provided with at least one set of assembling holes 8 along the axial direction thereof, and the same assembling holes 8 are arranged along the circumferential direction of the carbon brush holder 6.

In this embodiment, after the carbon brush holder is horizontally disposed, in order to dispose a plurality of assembly holes as many as possible, a plurality of sets of assembly holes may be disposed in parallel along the axial direction thereof, wherein the same assembly hole is disposed along the circumferential direction of the carbon brush holder.

In the specific implementation, in consideration of the limitation of the space of the lower half part of the carbon brush holder, the assembling holes are generally arranged only in the circumferential direction of the upper half part of the carbon brush holder. For example, in the specific structure of the carbon brush grinding device for the motor shown in fig. 1 to 3, 5 assembly holes are arranged along the axial direction of the carbon brush holder, wherein each set of assembly holes comprises 3 assembly holes arranged along the circumferential direction of the carbon brush holder, that is, 15 carbon brushes can be ground at one time. Of course, the number of assembling holes and the number of assembling holes arranged in the same assembling hole can be determined by those skilled in the art according to actual conditions.

After the arrangement, the carbon brush holder can be transversely provided with a plurality of assembling holes for installing the carbon brushes, so that the grinding device can grind a plurality of carbon brushes at one time, the grinding efficiency is high, and the grinding cost is low.

Preferably, the included angle between two adjacent assembly holes 8 in the same assembly hole is the same.

Specifically, the assembly holes in the same assembly hole are uniformly arranged, namely the included angle between two adjacent assembly holes in the same assembly hole is the same, so that more assembly holes can be arranged in the same assembly hole.

For example, in the specific structure of the grinding device for the carbon brush of the motor shown in fig. 1 to 3, the same assembly holes include 3 assembly holes arranged along the circumferential direction of the carbon brush holder, one of the assembly holes is arranged at the vertex position of the carbon brush holder, and the other two assembly holes are respectively arranged at two sides of the assembly hole and have an included angle of 60 ° with the assembly hole, so that the requirement of space arrangement between the assembly holes is met. Of course, the person skilled in the art can determine the included angle between the assembly holes arranged in the same assembly hole according to the actual situation.

Preferably, a carbon brush cap 11 for pressing the carbon brush 7 is provided at a top end of the fitting hole 8, and an elastic member 12 is further provided below the carbon brush cap 11.

Specifically, after the carbon brush is installed in the corresponding assembly hole, the carbon brush can be pressed to prevent the carbon brush from loosening by arranging the carbon brush cap at the top end of the assembly hole. The size of the assembling hole is matched with the carbon brush, and a notch for installing the carbon brush cap is formed in the top end of the assembling hole.

Meanwhile, an elastic piece is further arranged below the carbon brush cap, the carbon brush can be always tangent to the outer surface of the grinding wheel through the elastic piece, the matching effect of the ground carbon brush and the grinding wheel is improved, and therefore the grinding effect is improved. Generally, the elastic member may be a spring, a pressing plate, or the like having elasticity.

On the basis of the above embodiment, further, a powder collecting component is also arranged below the table top 2; the powder collecting assembly comprises an axial flow motor 13 and at least one dust removing air pipe 14, the axial flow motor 13 is arranged in the cabinet body 1, the axial flow motor 13 is connected with one end of the dust removing air pipe 14, and the other end of the dust removing air pipe 14 penetrates through the table board 2 and then extends into the carbon brush holder 6 and is positioned right below the grinding wheel 5.

In this embodiment, in order to guarantee the dust removal effect, put the below of carbon brush grinding component with whole powder collection assembly. One end of the dust removal air pipe is connected with the axial flow motor, and the other end of the dust removal air pipe penetrates through the table board and then extends into the carbon brush holder and is positioned under the grinding wheel, so that carbon powder generated after the grinding wheel grinds the carbon brush can directly fall into the dust removal air pipe, and the carbon powder is sucked away through the operation of the axial flow motor.

Compared with the mode that the dust removal air pipe and the carbon brush grinding assembly are arranged in parallel in the prior art, the dust removal air pipe and the carbon brush grinding assembly effectively utilize the gravity of the carbon powder, so that the dust removal air pipe can directly fall into the dust removal air pipe, and the dust removal effect is better.

Simultaneously, set up axial flow motor and dust removal tuber pipe in the cabinet body, effectively avoided the noise that vibrations produced, the noise is little.

For example, in the specific structure of the grinding device for carbon brushes of a motor shown in fig. 1 to 3, two dust removal air pipes are provided, so that the dust removal requirement can be effectively met. Of course, the skilled person can determine the number of the dust removing air pipes according to the actual situation.

Preferably, the axial flow motor 13 is further provided with a dust filter bag 15.

Particularly, the dust removal filter bag is further arranged on the axial flow motor, so that carbon powder sucked out of the dust removal air pipe can be uniformly collected into the dust removal filter bag, and the pollution to the surrounding environment is prevented.

Meanwhile, the dust removal filter bag is connected to the axial flow motor in a detachable mode, and after the dust is fully collected in the bag, the dust removal filter bag can be detached in time for replacement, so that the collection of the carbon powder is not influenced.

On the basis of the above embodiment, further, a control assembly is further arranged on one side of the cabinet body 1; the control assembly comprises a control element and a control panel 16, the control element is connected with the control panel 16, and the control panel 16 respectively controls the asynchronous motor 3 and the axial flow motor 13.

Specifically, one side of the cabinet body is also provided with a control assembly, the control assembly comprises a control panel and a control element arranged below the control panel, and the control assembly is mainly used for controlling an asynchronous motor and an axial flow motor, so that the timing automatic operation from the precision to the second is provided, and the grinding amount of the carbon brush can be controlled by adjusting the time.

The control panel is provided with a plurality of buttons, including a power switch button, a timing button and the like. The control element is implemented by a circuit structure in the prior art, and is not described in detail herein.

The embodiment of the utility model provides a motor carbon brush grinder's application method as follows:

installing carbon brushes in the assembling holes of the carbon brush holder, enabling the bottoms of the carbon brushes to be tangent to the outer circumferential surface of the grinding wheel, then installing carbon brush caps at the top ends of the assembling holes, and enabling the elastic pieces below the carbon brush caps to tightly press the carbon brushes;

pressing a button used for starting an asynchronous motor on a control panel and setting operation time, starting the asynchronous motor to enable a grinding wheel to rotate at a constant speed, grinding the bottom of a carbon brush by the grinding wheel, stopping rotating after the carbon brush is ground to a required radian, and taking the carbon brush out of an assembly hole; when the asynchronous motor is started, a button for starting the axial flow motor on the control panel is pressed, and the operation time is set, so that carbon powder generated after the grinding wheel grinds the carbon brush can directly fall into the dust removal air pipe, and the carbon powder is sucked away through the operation of the axial flow motor;

and after the on-site generator stops running, detaching the on-site old carbon brush, putting the newly ground carbon brush into an on-site brush holder, checking whether the radian of the ground carbon brush is identical to the surface radian of the slip ring of the on-site generator and whether the ground carbon brush is in close contact with the slip ring, if the radian of the ground carbon brush is not ideal, re-installing the carbon brush and continuing grinding until the carbon brush is ground to be qualified.

The embodiment of the utility model provides a pair of motor carbon brush grinder, overall structure through changing grinder, especially the bistrique structure among the carbon brush grinding assembly, the emery wheel is established to main shaft outside cover that transversely sets up promptly, establish the carbon brush holder again in emery wheel outside cover for can set up a plurality of pilot holes that are used for installing the carbon brush on the carbon brush holder of transversely setting, thereby can realize the purpose of grinding the motor carbon brush in batches, the carbon brush that the single can grind simultaneously is in large quantity, and the grinding efficiency is high, and the grinding cost is lower. And simultaneously, the embodiment of the utility model provides a pair of motor carbon brush grinder, the structure sets up rationally, has still reached the purpose of reducing volume, easy dismounting.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding device for a motor carbon brush is characterized by comprising a cabinet body and a table board arranged above the cabinet body, wherein an asynchronous motor and a carbon brush grinding assembly are arranged above the table board;

2. The apparatus of claim 1, wherein the carbon brush holder is provided with at least one set of assembling holes along an axial direction thereof, and the same set of assembling holes are provided along a circumferential direction of the carbon brush holder.

3. The apparatus of claim 2, wherein the included angle between two adjacent assembly holes in the same assembly hole is the same.

4. The apparatus according to claim 1, wherein a carbon brush cap for pressing the carbon brush is provided at a top end of the fitting hole, and an elastic member is further provided below the carbon brush cap.

5. The device according to any one of claims 1 to 4, wherein a powder collecting component is further arranged below the table top;

6. The device as claimed in claim 5, wherein the axial flow motor is further provided with a dust filter bag.

7. The device according to claim 5, characterized in that a control component is further arranged on one side of the cabinet body;

8. The device as claimed in claim 1, wherein two ends of the spindle are respectively fixed by two bracket type bearing seats, and the grinding wheel and the carbon brush holder are clamped between the two bearing seats.

9. The apparatus of claim 1, wherein one end of the main shaft is connected to the output end of the asynchronous motor through a pulley.

10. The device of claim 1, wherein a gap is provided between the grinding wheel and the carbon brush holder.