CN216966223U

CN216966223U - Crystallizer vibrating device

Info

Publication number: CN216966223U
Application number: CN202220390690.6U
Authority: CN
Inventors: 靳国栋; 周游; 管炜
Original assignee: Wuhan Xisai Metallurgical Engineering Co ltd
Current assignee: Wuhan Xisai Metallurgical Engineering Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-07-15
Anticipated expiration: 2032-02-25

Abstract

The utility model discloses a crystallizer vibration device, which solves the problem that the amplitude of the existing crystallizer vibration device is inconvenient to adjust. The technical scheme includes that the transmission mechanism comprises a transmission mechanism, a connecting rod mechanism and a four-connecting-rod framework which are connected in sequence, the transmission mechanism comprises a driving motor, a coupler, a speed reducer and an eccentric mechanism which are connected in sequence, the eccentric mechanism comprises eccentric shafts which are installed on two concentric bearing seats and one ends of which are connected with the speed reducer, an eccentric sleeve and a shaft sleeve are sleeved on the eccentric shafts in a front-back mode, the eccentric sleeve is integrally connected with the eccentric shafts through the shaft sleeve, eccentric sleeve bearings are arranged outside the eccentric sleeve, and the eccentric sleeve bearings are connected with the connecting rod mechanism through the eccentric bearing seats. The utility model has simple structure, flexible and convenient amplitude adjustment, good reliability, high precision and high efficiency.

Description

Crystallizer vibrating device

Technical Field

The utility model relates to a crystallizer vibration device.

Background

The crystallizer vibration device is one of the core devices in the complete equipment of a continuous casting machine, and has the functions of ensuring the uniform growth of a casting blank shell in a crystallizer and preventing a primary blank shell from being adhered to the copper wall of the crystallizer. In the continuous casting production, the vibration precision and the stability of the crystallizer not only have great influence on the surface quality of a continuous casting blank, but also directly influence the production efficiency and the operation safety.

The existing crystallizer vibration device of the continuous casting machine mainly comprises a transmission mechanism, a vibration device connecting rod mechanism and a vibration device four-connecting-rod frame, wherein an eccentric mechanism in the transmission mechanism is connected with a speed reducer, the speed reducer is connected with a driving motor through a coupler, so that the eccentric device is driven to rotate through the rotation of the driving motor to generate vertical reciprocating motion, and the vibration device four-connecting-rod frame is driven to vibrate vertically through the connecting rod mechanism.

The amplitude of the common vibration device on the market is adjusted in various forms, but most of the common vibration devices are complex in structure, the adjustment process is very difficult in normal production, and some vibration devices can not be adjusted.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a crystallizer vibration device which is simple in structure, can flexibly and conveniently adjust the amplitude, and is good in reliability, high in precision and high in efficiency.

The technical scheme includes that the transmission mechanism comprises a transmission mechanism, a connecting rod mechanism and a four-connecting-rod framework which are connected in sequence, the transmission mechanism comprises a driving motor, a coupler, a speed reducer and an eccentric mechanism which are connected in sequence, the eccentric mechanism comprises eccentric shafts which are installed on two concentric bearing seats and one ends of which are connected with the speed reducer, an eccentric sleeve and a shaft sleeve are sleeved on the eccentric shafts in a front-back mode, the eccentric sleeve is integrally connected with the eccentric shafts through the shaft sleeve, eccentric sleeve bearings are arranged outside the eccentric sleeve, and the eccentric sleeve bearings are connected with the connecting rod mechanism through the eccentric bearing seats.

The front end of the eccentric sleeve abuts against a shoulder on one side of the eccentric shaft, the front end of the shaft sleeve is detachably connected with the rear end of the eccentric sleeve, and the rear end of the shaft sleeve is tightly attached to the round nut; the round nut is sleeved on the eccentric shaft through threads and is screwed and pressed at the rear end of the shaft sleeve through threads.

The front end of the shaft sleeve is detachably connected with the rear end of the eccentric sleeve, and the rear end of the shaft sleeve is tightly attached to the round nut; the round nut is sleeved on the eccentric shaft through threads and is screwed and pressed at the rear end of the shaft sleeve through threads.

The inner wall of the shaft sleeve is provided with a key, the eccentric shaft is provided with a key groove, and the key is correspondingly inserted into the key groove.

The front end of the shaft sleeve is meshed with the rear end of the eccentric shaft sleeve.

Has the advantages that:

1) the utility model adopts a structural form that the eccentric shaft is matched with the eccentric sleeve, and can flexibly and conveniently adjust the eccentric distance by adjusting the relative rotation angle of the eccentric shaft and the eccentric sleeve, thereby realizing the up-and-down amplitude of the vibrating device which is flexibly adjusted.

2) The eccentric shaft and the shaft sleeve are connected by screwing the threads of the key, the key groove and the round nut, and the front end of the shaft sleeve is meshed with the rear end of the eccentric shaft sleeve, so that the connection between the eccentric shaft and the shaft sleeve is realized in the radial direction and the circumferential direction, the rotating acting force of the eccentric shaft is transmitted to the eccentric sleeve through the shaft sleeve to rotate together, and the eccentric sleeve is driven to rotate synchronously.

3) The circular nut is loosened, the meshing state between the shaft sleeve and the eccentric shaft is removed, the eccentric shaft or the eccentric sleeve is relatively rotated to adjust the amplitude, accumulated deviation of factors such as abrasion, assembly and processing can be compensated, various amplitude amplitudes can be provided for the crystallizer vibration device according to different process requirements, the adjustment precision is related to the number of teeth of the front end of the shaft sleeve meshed with the rear end of the eccentric shaft sleeve, the adjustment process is flexible and convenient, the downtime and maintenance time and the maintenance labor intensity are effectively reduced, and the device has the advantages of simplicity in operation, convenience, good flexibility, no need of replacing an eccentric mechanism, high operation efficiency, low cost and good reliability.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic view of the eccentric mechanism X-1.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

In fig. 1, X: a transmission mechanism; x-1: an eccentric mechanism; x-2: a speed reducer; x-3: a coupling; x-4: a drive motor; y: a link mechanism; y-1: a longitudinal tie bar; z: a four-bar linkage frame;

in fig. 2 and 3, 1 — eccentric shaft; 2-eccentric sleeve; 3-eccentric sleeve bearing; 4-shaft sleeve; a 5-bond; 6-round nut; 7-concentric bearing seats; 8-concentric bearing seats; 9-eccentric sleeve bearing block; 10-keyway, 11-shoulder.

Detailed Description

The utility model is further explained below with reference to the drawings:

referring to fig. 1, the utility model comprises a transmission mechanism X, a link mechanism Y and a four-link frame Z, wherein a longitudinal pull rod Y-1 of the link mechanism Y is connected with an eccentric mechanism X-1 in the transmission mechanism X, the eccentric mechanism X-1 is connected with a speed reducer X-2, the speed reducer X-2 is connected with a driving motor X-4 through a coupler X-3, so that the eccentric device X-1 is driven to rotate through the rotation of the driving motor X-4 to generate up-and-down reciprocating motion, and the four-link frame Z of a vibration device is driven to vibrate up and down through the link mechanism Y.

The eccentric mechanism X-1 comprises an eccentric shaft 1 which is arranged on two concentric bearing seats 7 and 8 and one end of which is connected with a speed reducer X-2, an eccentric sleeve 2 and a shaft sleeve 4 are sleeved on the eccentric shaft 1 in a front-back manner, the front end of the eccentric sleeve 2 is propped against a shoulder 11 on one side of the eccentric shaft 1, the front end of the shaft sleeve 4 is meshed with the rear end of the eccentric sleeve 2 (for example, the matching of trapezoidal teeth or tooth grooves is adopted), and the rear end of the shaft sleeve 4 is clung to a round nut 6; the round nut 6 is sleeved on the eccentric shaft 1 through threads, is tightly screwed and pressed at the rear end of the shaft sleeve 4 through threads, and axially fixes the eccentric sleeve 2 and the shaft sleeve 4 through the combined action of the shoulder 11 and the round nut 6. The inner wall of the shaft sleeve 4 is provided with a key 5, the eccentric shaft 1 is provided with a key groove 10, the key 5 is correspondingly inserted into the key groove 10, and the shaft sleeve 4 is circumferentially fixed under the action of the key 5, so that the eccentric sleeve 2 and the shaft sleeve 4 can rotate along with the eccentric shaft 1. An eccentric sleeve bearing 3 is arranged outside the eccentric sleeve 2, and the eccentric sleeve bearing 3 is connected with a longitudinal pull rod Y-1 of the connecting rod mechanism connecting Y through an eccentric bearing seat 9.

When the amplitude value is adjusted in production, the round nut 6 is only required to be loosened, the eccentric sleeve 2 is fixed by a tool, the shaft sleeve 4 is pulled out backwards, the meshing state of the shaft sleeve and the eccentric sleeve 2 is relieved, and the relative position of the eccentric sleeve 2 and the eccentric shaft 1 is rotated, so that various different total eccentric distances are achieved; after the set value is adjusted, the shaft sleeve 4 is pushed forwards to be meshed with the rear end of the eccentric sleeve 2 again, and finally the round nut 6 is screwed to fix, so that different amplitude values can be obtained. The adjustment precision can be improved by processing the number of teeth meshed on the eccentric sleeve 2 and the shaft sleeve 4, and the more the number of teeth, the higher the precision is. In the case of securing strength and considering economy, the more the number of teeth, the better.

If the eccentricity is deviated due to the processing of the central lines of the eccentric sleeve 2 and the eccentric shaft 1, or if the eccentric sleeve 2 and the eccentric shaft 1 are deviated due to long-term working abrasion, manual adjustment and repair can be carried out according to the deviation, the service life of the eccentric mechanism is prolonged, and the time spent on replacing the eccentric mechanism is saved. Firstly loosening the round nut 6, then loosening the eccentric sleeve 2 and the shaft sleeve 4 to remove the meshing state, rotating the eccentric sleeve 2 by a certain angle, namely one or more teeth number, according to the measured machining deviation amount and according to a proper direction, then matching the eccentric sleeve 2 and the shaft sleeve 4, and screwing the round nut 6 to realize the center line correction function of the eccentric sleeve 2 and the eccentric shaft 1, so that the vibrating device can reach higher amplitude precision during working. Similarly, when a new amplitude value is required by the process, the relative positions of the central lines of the eccentric sleeve 2 and the shaft sleeve 4 can be adjusted according to the method to reach different amplitude values so as to meet different process requirements.

Claims

1. The utility model provides a crystallizer vibrating device, is including the drive mechanism, link mechanism and the four-bar frame that connect gradually, drive mechanism is including the driving motor, shaft coupling, speed reducer and the eccentric mechanism who connects gradually, its characterized in that, eccentric mechanism is including installing on two concentric bearing frames, the eccentric shaft that one end is connected with the speed reducer, the cover is equipped with eccentric cover and axle sleeve around on the eccentric shaft, eccentric cover is through axle sleeve and eccentric shaft body coupling, eccentric cover sets up eccentric cover bearing outward, eccentric cover bearing through eccentric bearing frame with link mechanism connects.

2. The mold oscillating device of claim 1, wherein the front end of the eccentric sleeve abuts against a shoulder on one side of the eccentric shaft, the front end of the bushing is detachably connected with the rear end of the eccentric sleeve, and the rear end of the bushing is tightly attached to the round nut; the round nut is sleeved on the eccentric shaft through threads and is screwed and pressed at the rear end of the shaft sleeve through threads.

3. The mold oscillating device of claim 2, wherein said bushing has a key on an inner wall thereof, and said eccentric shaft has a key groove therein, said key being inserted into said key groove.

4. The mold oscillating device of claim 2 or 3, wherein a front end of said sleeve is engaged with a rear end of said eccentric sleeve.