CN110855052B

CN110855052B - Motor protection device for ball mill

Info

Publication number: CN110855052B
Application number: CN201911206992.2A
Authority: CN
Inventors: 李浒; 李伯如; 李伯胜; 李长�
Original assignee: Zhuzhou Lianxin Metal Foundry Co ltd
Current assignee: Zhuzhou Lianxin Metal Foundry Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-11-24
Anticipated expiration: 2039-11-29
Also published as: CN110855052A

Abstract

The invention discloses a motor protection device for a ball mill, belongs to the technical field of motor protection equipment, and solves the problems that the existing device is not provided with a motor protection mechanism, so that a motor is damaged and the normal use of the ball mill is influenced; the technical characteristics are as follows: the vibration damping device comprises a base, a driving air cylinder and a working motor, wherein an outer shell is fixedly arranged on the upper portion of the base, the working motor is arranged in the outer shell, the working motor is fixedly arranged on a partition plate, the driving air cylinder is fixedly connected to one side, away from the working motor, of the partition plate, the driving air cylinder is fixedly arranged on the inner wall of the outer shell, a motor protection cover is sleeved outside the working motor, and two vibration damping seats for protecting the working motor are symmetrically arranged in the outer shell; the embodiment of the invention is provided with the shock absorption seat, and the shock absorption seat realizes the buffer protection of the protection plate, so that the protection plate can clamp and limit the working motor, the damage to the outer wall of the working motor is avoided, and the service life of the working motor is prolonged.

Description

Motor protection device for ball mill

Technical Field

The invention relates to the technical field of motor protection equipment, in particular to a motor protection device for a ball mill.

Background

The ball mill is a device for crushing materials, and the basic principle of the ball mill is that a steel ball in a cylinder is lifted to a certain height by utilizing rotating force to fall and smash the materials, and the materials are crushed by mutual contact between the steel ball and the materials. The traditional ball mill adopts a fussy transmission mechanism such as an asynchronous motor, a speed reducer and a gear to drive a rotating shaft of a rotating drum to rotate, has the defects of low efficiency of a driving system, high loss and maintenance rate of the transmission mechanism, unstable starting and the like, adopts the asynchronous motor as power, and drives the rotating drum to rotate through the fussy transmission mechanism such as the speed reducer and a gear box.

Chinese patent CN109225487A discloses a permanent magnet synchronous motor for a ball mill, which comprises a ball mill cylinder and a permanent magnet synchronous motor connected with the ball mill cylinder, wherein the ball mill cylinder comprises a support frame arranged below the ball mill cylinder, a feed inlet and a discharge outlet are respectively arranged at the upper side of the ball mill cylinder and one end of the ball mill cylinder, and the permanent magnet synchronous motor is connected to the other end of the ball mill cylinder and used for rotating the permanent magnet synchronous motor; the permanent magnet synchronous motor comprises a plurality of rotors, wherein first permanent magnets are uniformly distributed on each rotor along the radial direction, one end of each rotor is provided with two second permanent magnets, the other ends of the rotors are sleeved with a buffer cylinder, the other ends of the rotors penetrate through the buffer cylinder, two sides of the other end of each rotor are provided with baffles, and a buffer chamber is formed between each baffle and each rotor; however, the device is not provided with a motor protection mechanism, so that the motor is damaged, and the normal use of the ball mill is influenced.

Disclosure of Invention

The invention aims to provide a motor protection device for a ball mill, which comprises a base, a driving air cylinder and a working motor, wherein the upper part of the base is fixedly provided with an outer shell, the outer shell is internally provided with the working motor, the working motor is fixedly arranged on a partition plate, one side of the partition plate, which is far away from the working motor, is fixedly connected with the driving air cylinder, the driving air cylinder is fixedly arranged on the inner wall of the outer shell, the outer part of the working motor is sleeved with a motor protection cover, and two shock absorption seats for protecting the working motor are symmetrically arranged in the outer shell, so that the problems that the motor is damaged and the normal use of the ball mill is influenced.

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

the utility model provides a motor protection device for ball mill, includes the base, drives actuating cylinder and work motor, and the upper portion fixed mounting of base has the shell body, is equipped with the work motor in the shell body, and work motor fixed mounting drives actuating cylinder on the baffle, and one side fixedly connected with that the work motor was kept away from to the baffle drives actuating cylinder, drives actuating cylinder fixed mounting on the inner wall of shell body, and the outside cover of work motor is equipped with the motor safety cover, and the shell body internal symmetry is equipped with two shock attenuation seats that are used for protecting the work motor.

As a further scheme of the invention: be equipped with the working chamber in the shock attenuation seat, the equipartition has a plurality of sleeves in the working chamber, sheathed tube one end fixedly connected with protection shield, protection shield and shock attenuation seat sliding connection, the intraductal inserted bar that is equipped with of cover, inserted bar and sleeve pipe sliding connection, the outside cover of inserted bar is equipped with the buffer spring who is used for protective case, one side fixedly connected with slider of protection shield, the rear side of slider is equipped with protection shield cushion socket, slider and protection shield cushion socket sliding connection.

As a still further scheme of the invention: two vertical guide rails used for limiting the sliding block are symmetrically arranged on the side wall of the protective plate buffer seat and are in sliding connection with the vertical guide rails, a plurality of horizontal cavities are vertically and evenly distributed in the protective plate buffer seat, and a damping mechanism used for damping the sliding block is arranged in each horizontal cavity.

As a still further scheme of the invention: the damping mechanism comprises a first hinge rod, a second hinge rod, a third hinge rod, a gear and a rack, the gear is rotatably connected with the horizontal cavity, the side wall of the gear is hinged with the third hinge rod, one end, away from the gear, of the third hinge rod is hinged with the second hinge rod, one end, away from the third hinge rod, of the second hinge rod is hinged with the first hinge rod, and the first hinge rod is fixedly connected with a lug boss, away from the second hinge rod.

As a still further scheme of the invention: the lug is the rubber material, and one side of gear is equipped with the rack, and gear and rack meshing, rack install be used for spacing the spacing seat of gear to the rack.

As a still further scheme of the invention: the rack is connected with the gear limiting seat in a sliding manner.

As a still further scheme of the invention: still the symmetry is equipped with two blotters in the shell, blotter and cushion socket fixed connection.

In conclusion, the beneficial effects of the invention are as follows: the embodiment of the invention is provided with the shock absorption seat, the shock absorption seat realizes the buffer protection of the protection plate, so that the protection plate can clamp and limit the working motor, the damage of the outer wall of the working motor is avoided, the service life of the working motor is prolonged, the embodiment of the invention also has the noise reduction function, the noise generated when the working motor works is avoided, and the working environment is ensured.

Drawings

Fig. 1 is a schematic structural diagram of the invention.

Fig. 2 is a schematic structural diagram of the shock-absorbing seat of the invention.

Fig. 3 is a schematic structural diagram of a working chamber in the invention.

FIG. 4 is a schematic structural view of the buffer seat of the protective plate of the present invention.

FIG. 5 is a sectional view of the buffer seat of the protective plate of the present invention.

Fig. 6 is a schematic structural diagram of the shock absorbing mechanism of the present invention.

In the figure: 1-base, 2-driving cylinder, 3-clapboard, 4-motor protective cover, 5-working motor, 6-outer shell, 7-buffer pad, 8-shock absorption seat, 9-working cavity, 10-inserted rod, 11-buffer spring, 12-sleeve, 13-protection plate, 14-slide block, 15-protection plate buffer seat, 16-horizontal cavity, 17-vertical guide rail, 18-lug, 19-gear limiting seat, 20-shock absorption mechanism, 21-first hinge rod, 22-second hinge rod, 23-third hinge rod, 24-gear and 25-rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1, in the embodiment of the present invention, a motor protection device for a ball mill includes a base 1, a driving cylinder 2 and a working motor 5, wherein an outer casing 6 is fixedly installed on an upper portion of the base 1, the working motor 5 is installed in the outer casing 6, the working motor 5 is fixedly installed on a partition plate 3, the driving cylinder 2 is fixedly connected to one side of the partition plate 3 away from the working motor 5, the driving cylinder 2 is fixedly installed on an inner wall of the outer casing 6, a motor protection cover 4 is sleeved outside the working motor 5, and two shock absorbing seats 8 for protecting the working motor 5 are symmetrically arranged in the outer casing 6;

as shown in fig. 2-3, be equipped with working chamber 9 in the cushion socket 8, the equipartition has a plurality of sleeves 12 in the working chamber 9, the one end fixedly connected with protection shield 13 of sleeve 12, protection shield 13 and cushion socket 8 sliding connection, be equipped with inserted bar 10 in the sleeve 12, inserted bar 10 and sleeve 12 sliding connection, the outside cover of inserted bar 10 is equipped with buffer spring 11 that is used for protective case 12, inserted bar 10, buffer spring 11 and sleeve 12 cooperation work have realized the buffer protection to protection shield 13, and then make protection shield 13 carry out the centre gripping spacing to work motor 5, the damage of work motor 5 outer wall has been avoided simultaneously, the service life of work motor 5 has been prolonged.

One side of the protection plate 13 is fixedly connected with a sliding block 14, the rear side of the sliding block 14 is provided with a protection plate buffer seat 15, and the sliding block 14 is in sliding connection with the protection plate buffer seat 15;

as shown in fig. 4-5, two vertical guide rails 17 for limiting the sliding block 14 are symmetrically formed on the side wall of the protection plate buffer seat 15, the sliding block 14 is slidably connected with the vertical guide rails 17, a plurality of horizontal cavities 16 are vertically and uniformly distributed in the protection plate buffer seat 15, and a damping mechanism 20 for damping the sliding block 14 is arranged in each horizontal cavity 16;

as shown in fig. 6, the shock absorbing mechanism 20 includes a first hinge rod 21, a second hinge rod 22, a third hinge rod 23, a gear 24 and a rack 25, the gear 24 is rotatably connected with the horizontal cavity 16, a side wall of the gear 24 is hinged with the third hinge rod 23, one end of the third hinge rod 23 away from the gear 24 is hinged with the second hinge rod 22, one end of the second hinge rod 22 away from the third hinge rod 23 is hinged with the first hinge rod 21, and one end of the first hinge rod 21 away from the second hinge rod 22 is fixedly connected with a projection 18;

in this embodiment, the bump 18 is made of rubber, the bump 18 not only has a limiting effect on the slider 14, but also has a protection effect on the slider 14, and the rubber material is adopted to play a damping effect, so that noise generated during the operation of the working motor 5 is avoided.

One side of the gear 24 is provided with a rack 25, the gear 24 is meshed with the rack 25, the rack 25 is arranged on a gear limiting seat 19 used for limiting the rack 25, and the rack 25 is connected with the gear limiting seat 19 in a sliding mode.

Two cushions 7 are symmetrically arranged in the outer shell 6, and the cushions 7 are fixedly connected with the shock absorption seat 8.

In summary, the working principle of the invention is as follows: the inserted bar 10, the buffer spring 11 and the sleeve 12 work cooperatively to realize the buffer protection of the protection plate 13, so that the protection plate 13 can clamp and limit the working motor 5, the damage to the outer wall of the working motor 5 is avoided, and the service life of the working motor 5 is prolonged.

The arrangement of the convex block 18 not only plays a limiting role for the sliding block 14, but also realizes the protection for the sliding block 14, and the rubber material also can play a damping effect, thereby avoiding the noise generated during the operation of the working motor 5.

The shock absorption seat 8 is arranged, the shock absorption seat 8 achieves buffering protection of the protection plate 13, the protection plate 13 is enabled to clamp and limit the working motor 5, meanwhile, the outer wall of the working motor 5 is prevented from being damaged, the service life of the working motor 5 is prolonged, the noise reduction function is achieved, noise generated when the working motor 5 works is avoided, and the working environment is guaranteed.

Although several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A motor protection device for a ball mill comprises a base (1), a driving cylinder (2) and a working motor (5), wherein an outer shell (6) is fixedly arranged on the upper portion of the base (1), the working motor (5) is arranged in the outer shell (6), and the motor protection device is characterized in that the working motor (5) is fixedly arranged on a partition plate (3), the driving cylinder (2) is fixedly connected to one side, away from the working motor (5), of the partition plate (3), the driving cylinder (2) is fixedly arranged on the inner wall of the outer shell (6), a motor protection cover (4) is sleeved outside the working motor (5), two shock absorption seats (8) used for protecting the working motor (5) are symmetrically arranged in the outer shell (6), a working cavity (9) is arranged in the shock absorption seats (8), a plurality of sleeves (12) are uniformly distributed in the working cavity (9), and a protection plate (13) is fixedly connected to, protection shield (13) and cushion socket (8) sliding connection, be equipped with inserted bar (10) in sleeve pipe (12), inserted bar (10) and sleeve pipe (12) sliding connection, the outside cover of inserted bar (10) is equipped with buffer spring (11) that are used for protective case (12), one side fixedly connected with slider (14) of protection shield (13), the rear side of slider (14) is equipped with protection shield cushion socket (15), slider (14) and protection shield cushion socket (15) sliding connection, two vertical guide rail (17) that are used for spacing slider (14) have been seted up to the symmetry on the lateral wall of protection shield cushion socket (15), slider (14) and vertical guide rail (17) sliding connection, vertical equipartition has a plurality of horizontal cavity (16) in protection shield cushion socket (15), be equipped with in horizontal cavity (16) and be used for to slider (14) absorbing damper (20), damper (20) include first pole (21), Second articulated rod (22), third hinge pole (23), gear (24) and rack (25), gear (24) and horizontal cavity (16) rotate to be connected, the lateral wall of gear (24) articulates there is third hinge pole (23), the one end that gear (24) were kept away from in third hinge pole (23) articulates there is second articulated rod (22), the one end that third hinge pole (23) were kept away from in second articulated rod (22) articulates there is first articulated rod (21), the one end fixedly connected with lug (18) of second articulated rod (22) are kept away from in first articulated rod (21).

2. The motor protector for ball mills of claim 1, characterized in that the projections (18) are made of rubber.

3. The motor protector for the ball mill according to claim 2, characterized in that a rack (25) is provided on one side of the gear (24), the gear (24) is engaged with the rack (25), and the rack (25) is mounted on a gear stopper seat (19) for stopping the rack (25).

4. The motor protector for ball mills according to claim 3, characterized in that the rack (25) and the gear retainer (19) are slidably connected.

5. A motor protection device for a ball mill according to any one of claims 1-4, characterized in that two cushions (7) are symmetrically arranged in the outer shell (6), and the cushions (7) are fixedly connected with the shock absorbing seats (8).