CN112757162A - Motor assembly - Google Patents

Motor assembly Download PDF

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Publication number
CN112757162A
CN112757162A CN202110059978.5A CN202110059978A CN112757162A CN 112757162 A CN112757162 A CN 112757162A CN 202110059978 A CN202110059978 A CN 202110059978A CN 112757162 A CN112757162 A CN 112757162A
Authority
CN
China
Prior art keywords
hole
rotating shaft
grinding
grinding part
hollow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110059978.5A
Other languages
Chinese (zh)
Inventor
马祖添
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Huashun Motor Industrial Co ltd
Original Assignee
Foshan Huashun Motor Industrial Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Huashun Motor Industrial Co ltd filed Critical Foshan Huashun Motor Industrial Co ltd
Priority to CN202110059978.5A priority Critical patent/CN112757162A/en
Publication of CN112757162A publication Critical patent/CN112757162A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

The invention discloses a motor assembly, which comprises a motor, a hollow rotating shaft, a grinding part connecting seat, a grinding part connecting part and a grinding part connecting part, wherein the hollow rotating shaft is arranged in the motor and provided with an axial through hole; at least one second radial liquid through hole is formed in the grinding part, and the first radial liquid through hole and the second radial liquid through hole can be communicated with each other; the invention has reasonable structural design and can convey liquid to the grinding part and the workpiece through the hollow rotating shaft or the hollow rear pull rod through the grinding part connecting seat.

Description

Motor assembly
Technical Field
The present invention relates to an electric motor, and more particularly, to an electric motor assembly.
Background
The motor is used for driving the rotating shaft to rotate and providing power; the grinding part connecting seat is used for installing grinding parts such as a grinding wheel and the like; the grinding member is used for grinding and cutting a workpiece. The existing motor, the grinding part connecting seat and the grinding part cannot convey liquid to the grinding wheel and a workpiece to be processed from the rotating shaft, the grinding part connecting seat and the grinding part, so that the temperature of a grinding area cannot be reduced, the cutting speed and the grinding quality are improved, dust is reduced, and the service life of the grinding wheel is prolonged.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the motor assembly which has reasonable structural design and can convey liquid to the grinding part and the workpiece through the hollow rotating shaft or the hollow rear pull rod through the grinding part connecting seat.
A motor assembly comprises a motor, a hollow rotating shaft, a grinding part connecting seat and a grinding part connecting seat, wherein the hollow rotating shaft is arranged in the motor and provided with an axial through shaft hole; at least one second radial liquid through hole is formed in the grinding part, and the first radial liquid through hole and the second radial liquid through hole can be communicated with each other.
Furthermore, a tapered hole concentric with the shaft hole is arranged in the hollow rotating shaft, a tapered part matched with the tapered hole is arranged on the excircle of the connecting part of the hollow rotating shaft, and the tapered part is in taper fit with the tapered hole; at least one rotating shaft end face key is arranged at the tail end of the output end of the hollow rotating shaft, at least one end face key groove is correspondingly arranged on the outer wall of the protruding portion, and the rotating shaft end face key is inserted into the end face key groove.
Furthermore, the inner wall of the shaft hole of the hollow rotating shaft provided with the tapered hole end is provided with shaft hole threads, the front pull rod of the hollow threads penetrates through the axial through hole of the connecting seat main body and then is in threaded connection with the shaft hole, so that the connecting seat main body and the hollow rotating shaft are fixedly connected, the axial through hole is communicated with the shaft hole formed in the hollow rotating shaft through the inner hole of the front pull rod of the hollow threads, and the other end of the hollow rotating shaft is connected with a rotary joint used for connecting liquid.
Further, install cavity back pull rod in the cavity pivot, cavity back pull rod and the internal thread connection of connecting seat main part, the hole intercommunication of axial through hole and cavity back pull rod, the other end of pull rod is connected with the rotary joint who is used for inserting liquid behind the cavity.
Furthermore, the outer wall of the connecting part of the hollow rotating shaft is provided with at least one annular sealing element mounting groove, and a sealing rubber ring is mounted in the annular sealing element mounting groove.
Furthermore, a clamping groove is arranged on the outer wall of the protruding part.
Further, a plugging piece is connected in the axial through hole arranged at one end of the grinding part connecting part in a threaded mode.
Furthermore, the grinding part is sleeved on the grinding part connecting part, at least one connecting hole is correspondingly formed in the boss part and the grinding part along the axial direction, and the grinding part and the boss part are fixed after the connecting piece is placed in the connecting hole.
Furthermore, the grinding part is sleeved on the grinding part connecting part, an external thread is arranged on the outer wall of the tail end of the grinding part connecting part, and the grinding part is fixed between the boss and the nut after the nut is screwed in.
Further, a liquid passing groove is annularly formed in the outer wall of the grinding part connecting portion provided with the first radial liquid passing hole, and the liquid passing groove is communicated with the first radial liquid passing hole.
The invention has the beneficial effects that: the grinding part connecting seat is detachably arranged on the grinding part connecting seat, liquid can enter from one end of the tail part of an idle shaft or a hollow rear pull rod through a rotary joint, and then is sprayed to a grinding wheel and a workpiece through an axial through hole, a first radial liquid through hole arranged on the grinding part connecting seat, a liquid through groove and a second radial liquid through hole arranged on the grinding wheel in sequence, heat generated by the motor can be taken away through liquid flow, and the motor is cooled; the liquid can be sprayed on a grinding part and a workpiece in processing, a large amount of grinding heat is taken away, the temperature of a grinding area is reduced, the cutting speed and the grinding quality are improved, the cutting force is reduced, dust is reduced, and the service life of the grinding part is prolonged.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic illustration of a split structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the connection seat body and the hollow rotary shaft of the first embodiment of the present invention when they are connected and fixed by the hollow threaded front pull rod;
FIG. 4 is an enlarged view at A in FIG. 3;
FIG. 5 is a schematic cross-sectional view of the connecting base body and the hollow rotating shaft of the second embodiment of the present invention being connected and fixed by the hollow rear pull rod;
FIG. 6 is an enlarged view at B in FIG. 5;
FIG. 7 shows a grinding member according to a first embodiment of the present invention
A schematic diagram of a disassembly structure locked on the grinding part connecting seat through a nut;
FIG. 8 shows a grinding member according to a first embodiment of the present invention
A schematic diagram of a disassembly structure locked on the grinding part connecting seat through a connecting piece;
FIG. 9 shows a second embodiment of the present invention, and a grinding member
A schematic diagram of a disassembly structure locked on the grinding part connecting seat through a nut;
FIG. 10 is a schematic view of a second embodiment of the present invention in a disassembled configuration with a grinding member fastened to a grinding member attachment base via a connection member;
FIG. 11 is a schematic structural view of a hollow shaft of the present invention;
figure 12 is a schematic view of the grinding member attachment socket of the present invention.
Detailed Description
Referring to fig. 1 to 12, a motor assembly includes a motor 1, a grinding part connecting seat 2, a grinding part 3, the grinding part 3 may be a grinding wheel; the motor 1 comprises a shell 4, a front end cover 5 and a rear end cover 6 which are arranged at the front end and the rear end of the shell 4, a stator is arranged in the shell 4, a coil assembly arranged on the stator, a rotor arranged in the stator, a hollow rotating shaft 7 arranged in the rotor, the rotor drives the hollow rotating shaft 7 to rotate, the hollow rotating shaft 7 drives a grinding part connecting seat 2 to rotate, and the grinding part connecting seat 2 drives a grinding wheel to rotate and carries out processing treatment such as grinding or cutting on the surface of a workpiece.
The main structure and the working principle of the motor 1 are the same as those of the existing motor, and the difference is as follows: the rotating shaft of the traditional motor 1 is solid, the invention adopts a hollow rotating shaft 7 which is arranged in the motor 1 and is provided with an axial through shaft hole 8, and the hollow rotating shaft 7 can be directly used for conveying liquid to the grinding part connecting seat 2; it can also be used to install a hollow rear tie rod 9, through which the hollow rear tie rod 9 conveys liquid to the grinding part connecting seat 2, which in turn conveys the liquid to the grinding wheel, the liquid can be water, cutting fluid, etc.
The invention can be used for liquid to enter from the tail part of the middle idle shaft 7 or the tail part of the hollow rear pull rod 9, and then the liquid is sprayed out to a grinding wheel and a workpiece through an axial through hole 10, a first radial liquid through hole 15 arranged on the grinding part connecting seat 2, a liquid through groove 17 and a second radial liquid through hole 16 arranged on the grinding wheel in sequence, and the heat generated by the motor 1 can be taken away through the liquid flow to cool the motor 1; the liquid can also be sprayed on the grinding part 3 and a workpiece in processing, a large amount of grinding heat is taken away, the temperature of a grinding area is reduced, the cutting speed and the grinding quality are improved, the cutting force is reduced, dust is reduced, and the service life of the grinding part 3 is prolonged.
The motor assembly comprises a motor 1, a hollow rotating shaft 7, a grinding part connecting seat 2, a grinding part 3 and a hollow rotating shaft connecting seat 14, wherein the hollow rotating shaft 7 is arranged in the motor 1 and provided with an axial through shaft hole 8, the grinding part connecting seat 2 is connected with the hollow rotating shaft 7, the grinding part 3 is detachably arranged on the grinding part connecting seat 2, the hollow rotating shaft 7 can drive the grinding part connecting seat 2 and the grinding part 3 to rotate, the grinding part connecting seat 2 comprises a connecting seat main body 11 in which an axial through hole 10 is arranged, the connecting seat main body 11 comprises a convex part 12, the convex part 12 is circular, hollow rotating shaft connecting parts 13 and grinding part connecting parts 14 are arranged at two ends of the convex part 12, inner threads are arranged on inner walls of two ends of the axial through hole 10, and a plurality of first radial liquid through holes; a plurality of second radial liquid through holes 16 are correspondingly arranged on the grinding component 3, and the first radial liquid through holes 15 and the second radial liquid through holes 16 can be communicated with each other.
In order to facilitate quick installation, a liquid through groove 17 is annularly arranged on the outer wall of the grinding part connecting part 14 provided with the first radial liquid through hole 15, and the liquid through groove 17 is communicated with the first radial liquid through hole 15; as long as set up on the emery wheel second radial liquid through hole 16 with lead to 17 axial position on the liquid groove correspond can, need not set up on the emery wheel a plurality of second radial liquid through holes 16 and set up a plurality of first radial liquid through holes 15 one-to-one on grinding part connecting portion 14, reduced the installation degree of difficulty and precision, the installation emery wheel is more convenient and fast.
In order to facilitate the mechanical automatic disassembly and assembly of the grinding part connecting seat 2, a clamping groove 18 which is convenient to clamp is arranged on the outer wall of the convex part 12, a tapered hole 19 which is concentric with the shaft hole 8 is arranged in the hollow rotating shaft 7, a tapered part 20 which is matched with the tapered hole 19 is arranged on the excircle of the hollow rotating shaft connecting part 13, and the tapered part 20 is in taper fit with the tapered hole 19; two rotating shaft end face keys 21 are symmetrically arranged at the tail end of the output end of the hollow rotating shaft 7, two end face key grooves 22 are correspondingly arranged on the outer wall of the boss 12, and the two rotating shaft end face keys 21 are inserted into the two end face key grooves 22 to play roles of limiting and transmitting torque.
Referring to fig. 3, 4 and 7, the connecting seat body 11 and the hollow rotating shaft 7 may be connected and fixed by a hollow threaded front pull rod 23, specifically: the inner wall of an axle hole 8 of a hollow rotating shaft 7 provided with a tapered hole 19 end is provided with an axle hole thread, a hollow thread front pull rod 23 penetrates through an axial through hole 10 of a connecting seat main body 11 and then is in threaded connection with the axle hole, so that the connecting seat main body 11 is fixedly connected with the hollow rotating shaft 7, the axial through hole 10 is communicated with the axle hole 8 arranged in the hollow rotating shaft 7 through an inner hole of the hollow thread front pull rod 23, the other end of the hollow rotating shaft 7 is connected with a rotary joint 24 used for connecting liquid, wherein the thread of the hollow thread front pull rod 23 is arranged on the outer wall of one end of the hollow thread front pull rod and is matched with the axle hole thread, the cross section of the axial through hole 10 of the connecting seat main body 11 is T-shaped, the maximum stroke of the hollow thread.
Referring to fig. 5, 6, 9 and 10, the connecting seat body 11 and the hollow rotating shaft 7 may be connected and fixed by a hollow rear pull rod 9, specifically: a hollow rear pull rod 9 is installed in the hollow rotating shaft 7, the hollow rear pull rod 9 is connected with an internal thread of the connecting seat main body 11, a wrench position 25 is arranged at one end of the hollow rear pull rod 9 and used for limiting the hollow rear pull rod 9 to rotate when the connecting seat main body 11 is installed, the axial through hole 10 is communicated with an inner hole of the hollow rear pull rod 9, and a rotary joint 24 used for connecting liquid is connected at the other end of the hollow rear pull rod 9.
Two annular sealing element mounting grooves 26 which are arranged in parallel are arranged on the outer wall of the hollow rotating shaft connecting part 13, and sealing rubber rings 27 are mounted in the annular sealing element mounting grooves 26 to prevent liquid from entering the motor 1.
A plugging piece 28 is connected to the inner thread of the axial through hole 10 arranged at one end of the grinding part connecting part 14, and the plugging piece 28 is preferably a hexagon socket head cap screw; when the plugging piece 28 is installed, the liquid can be sprayed to the grinding wheel and the workpiece only through the first radial liquid through hole 15, the liquid through groove 17 and the second radial liquid through hole 16 on the grinding wheel which are arranged on the grinding part connecting seat 2; the liquid can also simultaneously flow out of the end of the axial through hole 10 when the closure 28 is unscrewed.
The grinding part 3 can be fixed to the grinding part connection 14 in two ways, one: referring to fig. 8 and 10, the grinding part 3 is sleeved on the grinding part connecting part 14, a plurality of connecting holes 29 are regularly arranged on the boss part 12 and the grinding part 3 along the axial direction, and the grinding part 3 and the boss part 12 are fixed after each connecting piece 31 is correspondingly arranged in the connecting hole 29; the attachment holes 29 may be through holes or threaded holes and the attachment members 31 may be screws or bolt and nut assemblies.
The second method comprises the following steps: referring to fig. 7 and 9, the grinding member 3 is fitted to the grinding member connecting portion 14, an external thread 30 is provided on the outer wall of the end of the grinding member connecting portion 14, and the grinding member 3 is fixed between the boss portion 12 and the nut 32 after the nut 32 is screwed into the external thread 30.
The present invention is not limited to the above-described embodiments, and modifications and variations of the present invention are possible within the scope of the claims.

Claims (10)

1. The utility model provides a motor assembly, includes the motor and sets up the cavity pivot that has the axial shaft hole that link up in the motor, the grinding part connecting seat of being connected with the cavity pivot, the grinding part of installing on the grinding part connecting seat that can dismantle, the cavity pivot can drive grinding part connecting seat and grinding part rotation, characterized by: the grinding part connecting seat comprises a connecting seat main body internally provided with an axial through hole, the connecting seat main body comprises a convex part, a hollow rotating shaft connecting part and a grinding part connecting part, wherein the hollow rotating shaft connecting part and the grinding part connecting part are arranged at two ends of the convex part; at least one second radial liquid through hole is formed in the grinding part, and the first radial liquid through hole and the second radial liquid through hole can be communicated with each other.
2. The motor assembly of claim 1, wherein: a tapered hole concentric with the shaft hole is arranged in the hollow rotating shaft, a tapered part matched with the tapered hole is arranged on the excircle of the connecting part of the hollow rotating shaft, and the tapered part is in taper fit with the tapered hole; at least one rotating shaft end face key is arranged at the tail end of the output end of the hollow rotating shaft, at least one end face key groove is correspondingly arranged on the outer wall of the protruding portion, and the rotating shaft end face key is inserted into the end face key groove.
3. The motor assembly of claim 2, wherein: the inner wall of the shaft hole of the hollow rotating shaft provided with the tapered hole end is provided with shaft hole threads, the front pull rod of the hollow threads is connected with the shaft hole threads after penetrating through the axial through hole of the connecting seat main body, so that the connecting seat main body is fixedly connected with the hollow rotating shaft, the axial through hole is communicated with the shaft hole arranged in the hollow rotating shaft through the inner hole of the front pull rod of the hollow threads, and the other end of the hollow rotating shaft is connected with a rotary joint used for inserting liquid.
4. The motor assembly of claim 2, wherein: the hollow rotating shaft is internally provided with a hollow rear pull rod, the hollow rear pull rod is connected with the internal thread of the connecting seat main body, the axial through hole is communicated with the inner hole of the hollow rear pull rod, and the other end of the hollow rear pull rod is connected with a rotary joint for connecting liquid.
5. The motor assembly of any one of claims 1-4, wherein: the outer wall of the hollow rotating shaft connecting part is provided with at least one annular sealing element mounting groove, and a sealing rubber ring is mounted in the annular sealing element mounting groove.
6. The motor assembly of claim 5, wherein: the outer wall of the bulge is provided with a clamping groove.
7. The motor assembly of claim 6, wherein: the axial through hole arranged at one end of the grinding part connecting part is internally threaded with a plugging part.
8. The motor assembly of any one of claims 1-4, wherein: the grinding part is sleeved on the grinding part connecting part, at least one connecting hole is correspondingly arranged on the boss part and the grinding part along the axial direction, and the grinding part and the boss part are fixed after the connecting piece is placed into the connecting hole.
9. The motor assembly of any one of claims 1-4, wherein: the grinding part is sleeved on the grinding part connecting part, an external thread is arranged on the outer wall of the tail end of the grinding part connecting part, and the grinding part is fixed between the boss and the nut after the nut is screwed in.
10. The motor assembly of claim 5, wherein: and a liquid passing groove is annularly arranged on the outer wall of the grinding part connecting part provided with the first radial liquid passing hole and is communicated with the first radial liquid passing hole.
CN202110059978.5A 2021-01-18 2021-01-18 Motor assembly Pending CN112757162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110059978.5A CN112757162A (en) 2021-01-18 2021-01-18 Motor assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110059978.5A CN112757162A (en) 2021-01-18 2021-01-18 Motor assembly

Publications (1)

Publication Number Publication Date
CN112757162A true CN112757162A (en) 2021-05-07

Family

ID=75702335

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110059978.5A Pending CN112757162A (en) 2021-01-18 2021-01-18 Motor assembly

Country Status (1)

Country Link
CN (1) CN112757162A (en)

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Address after: 528000 Room 302, block 11, Liandong science and Technology Innovation Park, No. 1, Chuangfu Sixth Road, Lecong Town, Shunde District, Foshan City, Guangdong Province

Applicant after: Guangdong Huashun Motor Technology Co.,Ltd.

Address before: 528000 Dongbian, Jigeng Road, Liangcun Industrial Zone, Lecong Town, Shunde District, Foshan City, Guangdong Province

Applicant before: FOSHAN HUASHUN MOTOR INDUSTRIAL Co.,Ltd.

CB02 Change of applicant information