CN213498472U - Multifunctional grinding roller structure of automatic carbon brush grinding device - Google Patents

Abstract

The utility model belongs to the technical field of the carbon brush grinds, concretely relates to automatic grinder's of carbon brush multi-functional grinding roller structure includes the equipment platform, multi-functional grinding roller and carbon brush frame, and old carbon brush and a plurality of new carbon brush are placed to the carbon brush frame, and multi-functional grinding roller from left to right includes cylinder servo motor, cylinder motor reduction gear, motor cabinet, motor spacer, motor coupling sleeve, fixed copper ring, deep groove ball bearing, cylinder left side end cover, cylinder body, the cylinder right side support that connects gradually, the cylinder body includes that the surface adds abrasive material and adds conductive material and be used for testing the test cylinder that whether new carbon brush and cylinder body contact resistance satisfy the grinding demand to the grinding roller and the surface of new carbon brush abrasive machining. The utility model discloses an automatic grinder's of carbon brush multi-functional grinding roller structure adopts the drum-type to grind, can adapt to the eccentric condition of carbon brush, can the automatic measure contact resistance who grinds the good carbon brush.

Description

Multifunctional grinding roller structure of automatic carbon brush grinding device

Technical Field

The utility model relates to an automatic grinder's of carbon brush multi-functional grinding roller structure. Belongs to the technical field of carbon brush grinding.

Background

Carbon brushes (also called brushes), are widely used as sliding contacts in many electrical devices. The carbon brush is mainly made of graphite, impregnated graphite and metal (copper and silver-containing) graphite. The carbon brush device is mainly used for transmitting energy or signals between a fixed part and a rotating part of a motor or a generator or other rotating machinery, is generally made of pure carbon and a coagulant, is generally square in shape, is clamped on a metal support, is tightly pressed on a rotating shaft by a spring inside, and transmits electric energy to a coil through a phase changer when the motor rotates.

The carbon brush is used as a pivot for electric energy transmission in the motor unit, the normal work of the motor unit is directly influenced by the state of the carbon brush, the reliability grade of the whole motor system is further influenced, and once the carbon brush is excessively abraded and broken, the carbon brush needs to be replaced immediately. In order to ensure that a uniform oxidation film can be formed on the surface of the commutator of the motor unit in the shortest time after the unit is restarted, so that the abnormal wear of the surface of the commutator of the motor unit is reduced, the contact surface of the carbon brush and the commutator of the motor unit is matched with the most sufficient radian, the service life of a single carbon brush is prolonged, and the carbon brush needs to be processed quickly, efficiently and accurately before being replaced. At present, the processing technology of the carbon brush mainly comprises two types, one type is manual grinding by adopting a grinding machine, and the other type is a numerical control engraving machine controlled by a computer. The manual grinding has a plurality of defects in the grinding process: firstly, the radian of the working surface of the carbon brush depends on the radius of a grinding wheel, carbon powder is very easily attached to the surface of the grinding wheel and is not easy to clean in the grinding process, the accumulation of the carbon powder can cause the failure of the grinding wheel, the failed grinding wheel cannot ensure the grinding precision and the grinding surface smoothness, and the surface process of the carbon brush cannot meet the requirement due to the continuous processing of the carbon brush; secondly, the number of the carbon brushes ground by one time is very small, and basically, only one carbon brush can be processed at one time, so that the grinding abrasion is long; and thirdly, the grinding force and direction cannot be ensured in the manual grinding, so that the processing success rate is not high.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adopt drum-type to grind, can adapt to the eccentric condition of carbon brush, the problem that prior art exists is solved to the multi-functional grinding roller structure of the automatic grinder of carbon brush of the contact resistance of carbon brush that can the automatic measurement grind.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a multifunctional grinding roller structure of an automatic carbon brush grinding device comprises an equipment platform, a multifunctional grinding roller arranged on the equipment platform and a carbon brush frame which corresponds to the multifunctional grinding roller and can adjust the three-dimensional position of the multifunctional grinding roller, wherein the carbon brush frame is provided with an old carbon brush and a plurality of new carbon brushes, the multifunctional grinding roller comprises a roller servo motor, a roller motor reducer, a motor base fixedly connected with the equipment platform, a motor spacer bush, a motor connecting shaft sleeve, a fixed copper ring, a deep groove ball bearing, a roller left side end cover fixedly connected with a roller body, a roller body corresponding to the new carbon brushes and used for grinding the new carbon brushes, a roller right side end cover fixedly connected with the roller body and a roller right side support fixedly connected with the equipment platform from left to right, the roller body comprises a grinding roller and a testing roller, wherein the surface of the grinding roller is added with an abrasive material, the grinding roller is used for grinding a new carbon brush, the surface of the grinding roller is added with a conductive material, and the testing roller is used for testing whether the contact resistance of the new carbon brush and the roller body meets the grinding requirement. The motor connecting shaft sleeve is used for connecting the motor and the roller, and the motor drives the mandrel to rotate so as to drive the roller to be ground. The motor is directly connected with the motor through a key, and the spindle is connected with the key through a coupler, so that the motor and the roller are connected. The deep groove ball bearing is used for connecting and fixing the copper sheet flange barrel and a bridge of a motor connecting sleeve, and can ensure that the copper sheet flange barrel is fixed and kept in a test state while the rotary drum rotates. The roller motor base and the right bracket of the roller are devices for keeping the height and the level of the roller. The motor cabinet passes through fixed copper ring of threaded connection and motor, restricts the motion of copper ring and motor, and the motor cabinet also has the effect of supporting the cylinder simultaneously, maintains the cylinder location jointly with cylinder right side support, and a support can be saved in the design like this, has simplified the structure, avoids the structure too complicated to cause the later stage installation process difficulty. The right side support of the roller mainly plays a supporting role and is fixed with the mandrel through a deep groove ball bearing. And a carbon powder collector is further installed below the equipment platform and connected with the lower dust guard of the sliding table.

The fixed copper ring comprises a flange barrel copper sheet and a left side copper sheet fixed flange barrel, a roller middle core shaft is installed in the roller body, one end of the roller middle core shaft is connected with a roller left side end cover and driven by a roller servo motor to move, and the other end of the roller middle core shaft is opposite to the other end of the roller right side end cover and connected with a roller right side support.

The multifunctional grinding roller is externally provided with a roller protection cover fixedly connected with an equipment platform, the roller protection cover comprises a protection cover upper shell and a protection cover lower shell, the protection cover upper shell is provided with a housing observation window, and the protection cover lower shell comprises a protection cover plate and a sliding table lower dust guard plate under the roller of mutual connection.

The carbon brush holder comprises a carbon brush base and an upper cover plate capable of adjusting the three-dimensional position of the carbon brush holder, an old carbon brush mounting groove used for mounting an old carbon brush and a new carbon brush mounting groove used for mounting a new carbon brush are formed between the carbon brush base and the upper cover plate, and new and old carbon brush separation blocks are mounted between the old carbon brush mounting groove and the new carbon brush mounting groove.

The adjustable material clamp plate that is used for fixed old carbon brush and new carbon brush and adjusts through adjusting bolt is installed respectively to the both ends of carbon brush base, the insulating spacer of old carbon brush is installed to left side, right side, upside, downside and the rear side of old carbon brush, the insulating spacer of new carbon brush is installed to left side, right side, upside, downside and the rear side of new carbon brush.

The utility model has the advantages and beneficial effects of it is following:

the utility model relates to a multi-functional grinding roller structure of an automatic grinding device for carbon brushes, which adopts roller type grinding, can adapt to the eccentric condition of the carbon brushes, can automatically measure the contact resistance of the ground carbon brushes, and adopts a motor to drive a roller to rotate as a main grinding body of the carbon brushes; the carbon brush holder can move back and forth, so that the carbon brush can be conveniently installed and clamped; the carbon brush holder can deviate a certain distance relative to the center of the roller to adapt to the eccentric condition of the old carbon brush; conductive materials and grinding materials are pressed on the roller, so that the contact resistance and the carbon brush grinding are convenient to measure, the roller and the carbon brush fixing frame which are ground are designed to be replaceable, the roller with corresponding size can be replaced and the carbon brush fixing frame with corresponding size can be replaced according to the motor sliding rings with different sizes, and other parts of the equipment do not need to be changed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a perspective view of a multifunctional grinding drum structure of an automatic carbon brush grinding device according to the present invention;

fig. 2 is a schematic structural view of a multifunctional grinding roller structure of an automatic carbon brush grinding device according to the present invention;

fig. 3 is a schematic structural view of a multifunctional grinding drum in the multifunctional grinding drum structure of the automatic carbon brush grinding device of the present invention;

fig. 4 is a perspective view of a multifunctional grinding roll in the multifunctional grinding roll structure of the automatic carbon brush grinding device of the present invention;

fig. 5 is a schematic structural view of a fixed copper ring in a multifunctional grinding roller structure of an automatic carbon brush grinding device according to the present invention;

fig. 6 is a schematic structural view of a roller body in a multifunctional grinding roller structure of an automatic carbon brush grinding device according to the present invention;

fig. 7 is a schematic structural view (1) of a central spindle of a roller in a multifunctional grinding roller structure of an automatic carbon brush grinding device according to the present invention;

fig. 8 is a schematic structural view (2) of a central spindle of a roller in a multifunctional grinding roller structure of an automatic carbon brush grinding device according to the present invention;

fig. 9 is a schematic structural view of a motor connecting shaft sleeve in a multifunctional grinding drum structure of an automatic carbon brush grinding device according to the present invention;

fig. 10 is a schematic structural view of a drum right bracket and a drum motor base in the multifunctional grinding drum structure of the automatic carbon brush grinding device according to the present invention;

fig. 11 is the structural schematic diagram of the carbon brush holder in the multifunctional grinding roller structure of the automatic carbon brush grinding device of the present invention.

In the figure, 1-multifunctional grinding cylinder; 2-multifunctional grinding roller structure and feeding system; 3-a control system; 4-protecting the upper shell of the cover; 5-housing left handle; 6-housing observation window; 7-cover right handle; 8-a left adjusting knob of the shell observation window; 9-a right adjusting knob of the shell observation window; 10-roller motor base; 11-a drum body; 12-fixing a copper ring; 13-a lower drum shield plate; 14-sliding table lower dust guard; 15-drum servo motor; 16-drum motor reducer; 17-motor spacer bush; 18-motor connecting shaft sleeve; 19-flanged barrel copper sheet; 20-fixing the flange barrel by using the left copper sheet; 21-deep groove ball bearing; 22-drum left end cover; 23-roller layering; 25-a drum intermediate mandrel; 26-drum right side end cap; 27-drum right side rack; 66-upper cover plate; 69-old carbon brush; 70-new and old carbon brush separation blocks; 71-new carbon brush; 73-roller flutes; 74-monitoring computer; and 75, adjusting a material pressing plate.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 and 2, a multifunctional grinding roller structure of an automatic carbon brush grinding device includes an equipment platform (the equipment platform may include an upper cover, carrying handles at two sides, which can be lifted by two persons, rollers at the bottom, and can be pushed by the operator), a control system 3, a multifunctional grinding roller 1 mounted on the equipment platform, and a carbon brush holder corresponding to the multifunctional grinding roller 1 and capable of adjusting its two-dimensional position, the carbon brush holder is provided with an old carbon brush 69 and a plurality of new carbon brushes 71, the multifunctional grinding roller 1 includes a roller servo motor 15 (the driving system of the roller is a type 60 siemens SIMOTICS S-1FL6 low inertia type motor, Pn is 0.4kW,2500 line increment driver is a SINAMICS V90200V driver, the roller servo motor 15 can control the speed of the roller servo motor 15 The position precision is very accurate, and the voltage signal can be converted into torque and rotating speed to drive a control object. The servo motor rotor speed is controlled by the input signal and can react quickly, in the automatic control system, it is used as the executive component, and has the characteristics of small electromechanical time constant, high linearity, starting voltage, etc., it can convert the received electric signal into the angular displacement or angular speed output on the motor shaft, and has stronger overload capacity), the drum motor reducer, the drum motor base 10 fixedly connected with the equipment platform, the motor spacer 17, the motor connecting shaft sleeve 18 (for connecting the motor and the drum, making the motor drive the drum middle core shaft 25 to rotate, thereby driving the drum grinding process. It directly adopts the key-type connection with the motor, adopts the shaft coupling design between dabber 25 in the middle of with the cylinder to play the effect of connecting motor and cylinder), fix on the motor cabinet with old carbon brush 69 correspond and not along with the rotatory fixing of cylinder body on the cylinder motor cabinet 10 and with fixed copper ring 12 that old carbon brush 69 correspond (fix on cylinder motor cabinet 10 through four screw holes about from top to bottom, do not rotate along with cylinder body 11. The main function of the method is to find a position with the largest contact area by measuring the resistance of the fixed copper ring 12 and the old carbon brush 69, and at the position, grinding of the new carbon brush 71, the deep groove ball bearing 21 and the left end cover 22 of the roller fixedly connected with the roller body 11 are carried out (two end covers are arranged on both sides of the roller body 11, and the end covers are fixedly connected with the roller body 11 by six bolts. The end cover 22 on the left side of the roller is provided with a countersunk hole and a threaded hole on one side close to the motor for fixing the middle core shaft 25 of the roller to drive the roller to rotate. The right end cover 26 of the roller is only provided with a through hole for the central spindle 25 of the roller to directly pass through), and the roller body 11 corresponding to the new carbon brush 71 and used for grinding the new carbon brush 71 (part of the surface of the roller body 11 is made of copper conductive material, the roller body 11 is made of aluminum alloy material, and the weight is light and easy to hollow out so as to reduce the weight. The grinding wheel is divided into two parts according to the proportion of 1:2, and grooves are formed in the separating positions (in order to avoid scratches on carbon brushes in the grinding process, 60-degree oblique angles are adopted on the side surfaces of the roller grooves 73). 1/3 of the roller body 11 is a testing roller, a copper sheet is fixed outside the roller body 11 and used for testing whether the resistance between the new carbon brush 71 and the roller body 11 meets the grinding requirement, and the new carbon brush 71 and the roller body 11 are fixed by drilling a threaded hole at the bottom of the roller groove 73. 1/3 of remaining cylinder is grinding drum, and the cylinder pastes abrasive paper outward and carries out abrasive machining, because of considering abrasive paper needs to be changed, so adopt at cylinder recess 73 department with the fixed abrasive paper of cylinder layering 23), with cylinder body fixed connection's cylinder right side end cover and with equipment platform fixed connection's cylinder right side support, cylinder body 11 includes that the surface adds abrasive material and adds conductive material and be used for testing whether new carbon brush 71 and cylinder body 11 contact resistance satisfy the test cylinder of grinding demand to the grinding drum and the surface of new carbon brush 71 abrasive machining.

Referring to fig. 3-10, the fixed copper ring 12 includes a flange barrel copper sheet 19 and a left side copper sheet fixed flange barrel 20, a roller middle mandrel 25 is installed in the roller body 11 (the mandrel is close to the motor side and is used for fixing the mandrel and the roller for a flange plate, so that the motor drives the roller to move to finish grinding work, the mandrel is close to the fixed support and is a simple shaft, the fixed support is connected by a bearing, the accurate distance between the roller and the support is ensured by two round nuts between the bearing and the fixed support), one end of the roller middle mandrel 25 is connected with a roller left side end cover 22 and is driven by a roller servo motor 15 to move, and the other opposite end penetrates through the roller right side end cover 26 and is connected with a roller right side support 27. The roller motor base 10 and the roller right side bracket 27 are devices for keeping the height and the level of the roller. Roller motor cabinet 10 passes through bolted connection fixed copper ring 12 and motor, and the motion of restriction copper ring and motor, roller motor cabinet 10 still has the effect of supporting the cylinder simultaneously, maintains the cylinder location jointly with cylinder right side support 27, and a support can be saved in the design like this, has simplified the structure, avoids the structure too complicated to cause the later stage installation difficulty. The right bracket 27 of the roller mainly plays a supporting role.

Multifunctional grinding roller 1 outside still install with equipment platform fixed connection's cylinder safety cover, the cylinder safety cover includes protecting cover epitheca 4 and safety cover inferior valve, housing observation window 6 has been seted up to protecting cover epitheca 4, the safety cover inferior valve includes shield plate 13 and slip table dust guard 14 down under interconnect's the cylinder. The protective cover upper shell 4 is mainly used for preventing grinding dust generated by grinding from splashing to influence the normal operation of other equipment. The lower shell plays a role in guiding generated abrasive dust to flow to a hopper and a dust collector below. The main function of the housing inspection window 6 is to observe the degree of grinding progress, whether machining requirements are met and whether the initial grinding position is accurate. The side of the protective cover upper shell 4 is provided with a cover shell left handle 5, a cover shell right handle 7, a cover shell observation window left adjusting knob 8 and a cover shell observation window right adjusting knob 9.

Referring to fig. 11, the carbon brush holder includes a carbon brush base and an upper cover plate 66, an old carbon brush placing groove for placing an old carbon brush 69 and a new carbon brush 2 placing groove for placing a new carbon brush 71 are formed between the carbon brush base and the upper cover plate 66 (preferably, eight new carbon brushes 71 to be ground and simultaneously ground are clamped on the left side, and one old carbon brush 69 for finding an optimal grinding position is clamped on the right side), a new and old carbon brush separating block 70 is installed between the old carbon brush placing groove and the new carbon brush placing groove, an adjustable material pressing plate 75 for fixing the old carbon brush 69 and the new carbon brush 71 and adjusting through an adjusting bolt is installed above the old carbon brush placing groove and the new carbon brush placing groove, and two ends of the carbon brush base 72 are respectively installed with an adjustable material pressing plate 75 for fixing the old carbon brush 69 and the new carbon brush 71 and adjusting through an adjusting bolt (the adjustable material pressing plate 75 mainly functions to fix the carbon brush and prevent a processing error, and the left side, the right side, the upper side, the lower side and the rear side of the old carbon brush 69 are provided with old carbon brush insulation spacers, and the left side, the right side, the upper side, the lower side and the rear side of the new carbon brush 71 are provided with new carbon brush insulation spacers. By adopting the insulating spacer (rubber spacer), on one hand, the fixture can be prevented from scratching the surface of the carbon brush; meanwhile, the carbon brush can be fixed by utilizing the high friction and compressibility of rubber, and machining errors caused by the fact that the carbon brush slides in the machining process are prevented.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims (5)

1. The utility model provides an automatic grinder's of carbon brush multi-functional grinding roller structure, includes the equipment platform, install in multi-functional grinding roller on the equipment platform with multi-functional grinding roller corresponds and the carbon brush frame of adjustable self three-dimensional position, its characterized in that: the multifunctional grinding roller comprises a roller servo motor, a roller motor reducer, a motor base fixedly connected with an equipment platform, a motor spacer bush, a motor connecting shaft sleeve, a fixed copper ring, a deep groove ball bearing, a roller left end cover fixedly connected with the roller body, a roller body corresponding to the new carbon brush and used for grinding the new carbon brush, a roller right end cover fixedly connected with the roller body and a roller right side bracket fixedly connected with the equipment platform from left to right, wherein the roller servo motor, the roller motor reducer, the motor base, the motor spacer bush, the motor connecting shaft sleeve, the fixed copper ring, the deep groove ball bearing, the roller left end cover, the roller left end, the roller body comprises a grinding roller and a testing roller, wherein the surface of the grinding roller is added with an abrasive material, the grinding roller is used for grinding a new carbon brush, the surface of the grinding roller is added with a conductive material, and the testing roller is used for testing whether the contact resistance of the new carbon brush and the roller body meets the grinding requirement.

2. The multifunctional grinding roller structure of the automatic grinding device for the carbon brushes according to claim 1, is characterized in that: the fixed copper ring comprises a flange barrel copper sheet and a left side copper sheet fixed flange barrel, a roller middle core shaft is installed in the roller body, one end of the roller middle core shaft is connected with a roller left side end cover and driven by a roller servo motor to move, and the other end of the roller middle core shaft is opposite to the other end of the roller right side end cover and connected with a roller right side support.

3. The multifunctional grinding roller structure of the automatic grinding device for the carbon brushes according to claim 1, is characterized in that: the multifunctional grinding roller is externally provided with a roller protection cover fixedly connected with an equipment platform, the roller protection cover comprises a protection cover upper shell and a protection cover lower shell, the protection cover upper shell is provided with a housing observation window, and the protection cover lower shell comprises a protection cover plate and a sliding table lower dust guard plate under the roller of mutual connection.

4. The multifunctional grinding roller structure of the automatic grinding device for the carbon brushes as claimed in claim 2, wherein: the carbon brush holder comprises a carbon brush base and an upper cover plate capable of adjusting the three-dimensional position of the carbon brush holder, an old carbon brush mounting groove used for mounting an old carbon brush and a new carbon brush mounting groove used for mounting a new carbon brush are formed between the carbon brush base and the upper cover plate, and new and old carbon brush separation blocks are mounted between the old carbon brush mounting groove and the new carbon brush mounting groove.

5. The multifunctional grinding roller structure of the automatic grinding device for the carbon brushes as claimed in claim 4, wherein: the adjustable material clamp plate that is used for fixed old carbon brush and new carbon brush and adjusts through adjusting bolt is installed respectively to the both ends of carbon brush base, the insulating spacer of old carbon brush is installed to left side, right side, upside, downside and the rear side of old carbon brush, the insulating spacer of new carbon brush is installed to left side, right side, upside, downside and the rear side of new carbon brush.

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