CN218850503U

CN218850503U - Special motor for grinding machine

Info

Publication number: CN218850503U
Application number: CN202222907903.0U
Authority: CN
Inventors: 冯涛; 沈孝
Original assignee: De Neng Electric Drive Technology Suzhou Co ltd
Current assignee: Zhejiang Shanshide Nengli Technology Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-04-11
Anticipated expiration: 2032-11-02

Abstract

A motor special for a grinding machine comprises a grinding machine frame, a motor shell, a grinding machine spindle, a motor stator, a motor rotor and a nut, wherein the motor shell is connected with the grinding machine frame; one end of the outer wall of the grinding machine spindle is arranged to be a first conical shaft connecting surface, a conical hole is formed in the motor rotor, the first conical shaft connecting surface and the conical hole are coaxially arranged, and the first conical shaft connecting surface is in contact with the inner wall of the conical hole. The utility model discloses a special motor of grinding machine through the improvement to the electrode rotor, uses the permanent magnetism now and directly drives the motor, and motor department does not have the bearing, and the motor running loss is littleer, and motor efficiency is higher, installs simple moreover, and the maintenance of following motor has not practiced thrift the cost of labor.

Description

Special motor for grinding machine

Technical Field

The utility model belongs to the technical field of the grinding machine motor, specifically, relate to a special motor of grinding machine.

Background

The grinding machine is a machine tool for grinding the surface of a workpiece by using a grinding tool, and the main power source of the grinding machine is a motor. At present, a grinding machine takes a motor as main power, transmits the power to a grinding disc after passing through a synchronous belt, and drives the grinding disc to rotate so as to process a workpiece.

The transmission mode of the driving wheel of the grinding machine is that the motor is driven by a belt pulley or a gear, so that the transmission efficiency of the system is low, the grinding precision of the grinding machine is high, the maintenance is troublesome, and the equipment installation volume is large.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a special motor of grinding machine, the energy consumption of solving the motor is great, and power needs to be transmitted to the grinding machine through the hold-in range, and it is great to lead to overall structure to occupy the space, and work efficiency is lower, the problem that the grinding machine precision is low.

The technical scheme is as follows: the utility model provides a special motor for a grinding machine, which comprises a grinding machine frame, a motor shell, a grinding machine main shaft, a motor stator, a motor rotor and a nut, wherein the motor shell is connected with the grinding machine frame; one end of the outer wall of the grinding machine spindle is arranged to be a first conical shaft connecting surface, a conical hole is formed in the motor rotor, the first conical shaft connecting surface and the conical hole are coaxially arranged, and the first conical shaft connecting surface is in contact with the inner wall of the conical hole. The utility model discloses a special motor of grinding machine through the improvement to the electrode rotor, uses the permanent magnetism now and directly drives the motor, and motor department does not have the bearing, and the motor running loss is littleer, and motor efficiency is higher, installs simple moreover, and the maintenance of following motor has not practiced thrift the cost of labor.

Furthermore, in the motor dedicated for the grinding machine, the internal cavity of the grinding machine frame is communicated with the internal cavity of the motor housing, and one end of the grinding machine spindle, which is provided with the first conical shaft connecting surface, extends into the internal cavity of the motor housing. The extended grinding machine spindle can be used to make a connection with the motor rotor.

Furthermore, in the motor special for the grinding machine, one end of the motor shell, which is far away from the grinding machine frame, is connected with the rear cover plate. The back shroud that sets up forms the seal chamber structure with motor inside, guarantees the stable work of the inside device of motor.

Furthermore, in the above motor dedicated for a grinding machine, the rear cover plate is provided with at least one glan head. The arranged gland head is convenient for leading out the leading-out wire in the motor, so that the motor connecting wire is neat.

Furthermore, a first transition flange is arranged between the grinding machine frame and the motor shell, a plurality of first locking screws are arranged on the first transition flange, and the first transition flange is fixed on the grinding machine frame through the first locking screws. The stud part of the first locking screw is connected with a rated threaded hole of the grinder frame, the first transition flange is provided with a step hole, the head of the first locking screw abuts against a step on the inner wall of the step hole, connection is achieved, and the first transition flange is locked on the grinder frame through the first locking screws.

Furthermore, according to the motor special for the grinding machine, the motor shell is provided with the second locking screws, and the motor shell is fixedly connected with the first transition flange through the second locking screws. The motor shell and the transition flange I are connected into a whole through a plurality of locking screws II.

Further, in the motor special for the grinding machine, a stator-rotor air gap is arranged between the motor stator and the motor rotor.

Furthermore, in the motor special for the grinding machine, the O-shaped ring I is arranged between the grinding machine frame and the transition flange I. The O-shaped ring I is mainly installed, the front section of the main shaft of the grinding machine can not reach the position of the motor even if oil or water leaks, the motor is guaranteed to have a safe working environment, and the service life of the motor is prolonged.

Furthermore, according to the special motor for the grinding machine, an O-shaped ring II is arranged between the motor shell and the rear cover plate. The O-shaped ring II is arranged, so that the sealing performance between the motor shell and the rear cover plate is improved, and moisture is prevented from entering.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: special motor of grinding machine, use the permanent magnetism to directly drive the motor, the power density of motor is higher, compares a lot little with traditional three-phase asynchronous machine's volume, the frame cost is practiced thrift more lightly to equipment. The motor is not provided with a bearing, so that the running loss of the motor is smaller, the noise is reduced, and the motor efficiency is higher. The motor is simple to install, the motor does not need to be maintained in the future, labor cost is saved, the PTC is arranged in the motor, the motor stator is protected to operate safely, and the service life of the motor is prolonged. Under the condition that the motor does not have a bearing, the motor can not be installed very conveniently many times, mainly because the motor stator and the motor rotor have great appeal, the maximum efficiency under the condition that the motor does not have the bearing is met at present, and the motor can be installed on client equipment very conveniently.

Drawings

Fig. 1 is the structure schematic diagram of the grinder special motor of the present invention.

In the figure: the grinding machine comprises a grinding machine frame 1, a motor shell 2, a locking screw II 21, a grinding machine spindle 3, a conical shaft connecting surface I31, a motor stator 4, a stator-rotor air gap 41, a motor rotor 5, a conical hole 51, a nut 6, a rear cover plate 7, a transition flange I8, a locking screw I81, an O-shaped ring I9 and an O-shaped ring II 10.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be 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 according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

As shown in fig. 1, the motor special for the grinding machine comprises a grinding machine frame 1, a motor housing 2, a grinding machine spindle 3, a motor stator 4, a motor rotor 5 and a nut 6, wherein the motor housing 2 is connected with the grinding machine frame 1, the motor stator 4 is arranged in the motor housing 2, the motor rotor 5 is arranged in the motor stator 4, one end of the grinding machine spindle 3 is connected with the nut 6, and the nut 6 is arranged on the grinding machine spindle 3. A stator-rotor air gap 41 is arranged between the motor stator 4 and the motor rotor 5.

Wherein, the one end of 3 outer walls of grinding machine main shaft sets up to tapered axle and connects face one 31, be equipped with bell mouth 51 on the electric motor rotor 5, tapered axle connects face one 31 and the coaxial setting of bell mouth 51 to tapered axle connects face one 31 and the inner wall of bell mouth 51 contacts. The internal cavity of the grinding machine frame 1 is communicated with the internal cavity of the motor shell 2, and one end of the grinding machine spindle 3 provided with the conical shaft connecting surface I31 extends into the internal cavity of the motor shell 2.

And secondly, one end of the motor shell 2, which is far away from the grinding machine frame 1, is connected with a rear cover plate 7. At least one glan head 71 is arranged on the rear cover plate 7.

And thirdly, a first transition flange 8 is arranged between the grinding machine frame 1 and the motor shell 2, a plurality of first locking screws 81 are arranged on the first transition flange 8, and the first transition flange 8 is fixed on the grinding machine frame 1 through the plurality of first locking screws 81. The motor shell 2 is provided with a plurality of locking screws II 21, and the motor shell 2 is fixedly connected with the transition flange I8 through the locking screws II 21.

In addition, an O-shaped ring I9 is arranged between the grinding machine frame 1 and the transition flange I8. And a second O-shaped ring 10 is arranged between the motor shell 2 and the rear cover plate 7.

The utility model discloses a special motor structure principle of grinding machine as follows:

the first transition flange 8 is installed on the grinding machine frame 1 through a plurality of first locking screws 81, and the motor stator 4 and the motor shell 2 are directly installed on the first transition flange 8 through a plurality of second locking screws 21, so that the motor stator 4 and the motor shell 2 are fixed on the grinding machine frame 1 through the first transition flange 8. The permanent magnet synchronous motor has the advantages that the permanent magnet is arranged on the motor rotor 5 of the permanent magnet synchronous motor and can be directly attracted with the motor stator 4 in the installation process, so that the air gap 41 between the stator and the rotor is uneven, the motor cannot normally work, the motor stator 4 and the motor rotor 5 are very large in attraction force, and the motor stator 4 and the motor rotor 5 are difficult to separate, so that the grinding machine spindle 3 is designed to be conical, the inner hole of the motor rotor 5 is designed to have the same conical degree as the grinding machine spindle 3, so that the motor rotor 5 is directly placed in after the motor stator 4 and the motor shell 2 are fixed, the motor rotor 5 and the motor stator 4 can be directly installed in the motor rotor 5, but cannot completely reach the designed position, due to the conical shaft connecting surface one 31 and the conical hole 51, the nut 6 can push the motor rotor 5 to reach the position coaxial with the grinding machine spindle 3 only after the nut 6 is screwed, the grinding machine spindle 3 is designed to have the conical degree, and after the nut 6 is screwed, the motor rotor 5 can have a large force to balance the air gap 41. And finally, the protection grade of the rear end cover part of the motor can also be achieved by installing the O-shaped ring II 10 and the rear cover plate 7, and the leading-out wire of the motor is led to the outside through the Glan head 71.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a special motor of grinding machine which characterized in that: the grinding machine comprises a grinding machine frame (1), a motor shell (2), a grinding machine spindle (3), a motor stator (4), a motor rotor (5) and a nut (6), wherein the motor shell (2) is connected with the grinding machine frame (1), the motor stator (4) is arranged in the motor shell (2), the motor rotor (5) is arranged in the motor stator (4), one end of the grinding machine spindle (3) is connected with the nut (6), and the nut (6) is arranged on the grinding machine spindle (3);

wherein, the one end of grinding machine main shaft (3) outer wall sets up to conical shaft and connects face one (31), be equipped with bell mouth (51) on electric motor rotor (5), conical shaft connects face one (31) and bell mouth (51) coaxial setting to the inner wall of conical shaft connection face one (31) and bell mouth (51) contacts.

2. The special motor for the grinding machine as claimed in claim 1, wherein: the internal cavity of the grinding machine frame (1) is communicated with the internal cavity of the motor shell (2), and one end of the grinding machine spindle (3) provided with the conical shaft connecting surface I (31) extends into the internal cavity of the motor shell (2).

3. The special motor for the grinding machine according to claim 1 or 2, characterized in that: one end of the motor shell (2) far away from the grinding machine frame (1) is connected with a rear cover plate (7).

4. The special motor for the grinding machine as claimed in claim 3, wherein: the rear cover plate (7) is provided with at least one Glan head (71).

5. The special motor for the grinding machine as claimed in claim 4, wherein: be equipped with transition flange (8) between grinding machine frame (1) and motor casing (2), be equipped with a plurality of locking screw (81) on transition flange (8), transition flange (8) are fixed on grinding machine frame (1) through a plurality of locking screw (81).

6. The special motor for the grinding machine as claimed in claim 5, wherein: the motor shell (2) is provided with a plurality of second locking screws (21), and the motor shell (2) is fixedly connected with the first transition flange (8) through the second locking screws (21).

7. The special motor for the grinding machine as claimed in claim 6, wherein: and a stator-rotor air gap (41) is arranged between the motor stator (4) and the motor rotor (5).

8. The special motor for the grinding machine as claimed in claim 6, wherein: and an O-shaped ring I (9) is arranged between the grinder frame (1) and the transition flange I (8).

9. The special motor for the grinding machine as claimed in claim 3, characterized in that: an O-shaped ring II (10) is arranged between the motor shell (2) and the rear cover plate (7).