CN213380146U

CN213380146U - Bale revolving platform joint shaft and bearing replacement device

Info

Publication number: CN213380146U
Application number: CN202022432901.1U
Authority: CN
Inventors: 廖巍; 蒋鹏飞; 易英; 张涛; 常文超; 马鹏; 朱忠利; 王日华; 罗浩; 张文斌; 张琴; 晏宁宁; 张继勇; 许才盛
Original assignee: Xinyu Iron and Steel Co Ltd
Current assignee: Xinyu Iron and Steel Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-08
Anticipated expiration: 2030-10-28

Abstract

The utility model provides a bale rotary table articulated shaft and bearing change device, belongs to bearing extracting tool technical field, this change device, including the rotary table body, the both sides of rotary table body are provided with two sets of crossing arms that link to each other through the crossbeam respectively symmetrically, every group crossing arm includes bale arm and yoke, the one end of bale arm links to each other with the rotary table body through yoke and crossbeam, the crossbeam rotates with the upper portion of rotary table body through articulated shaft and bearing and links to each other, all be provided with on bale arm and the crossbeam and hang the lift structure, the below of yoke is provided with vertical jacking part, sliding connection has horizontal ejecting part between two sets of crossing arms, two ejecting ends of horizontal ejecting part are respectively with two articulated shafts, the beneficial effects of the utility model are that, this bearing change device overall structure is simple, use cost is low, make the change process of articulated shaft and bearing simple and convenient operation, the used instruments are simple, are not influenced by field conditions, and are safe and reliable in the whole replacement process and high in efficiency.

Description

Bale revolving platform joint shaft and bearing replacement device

Technical Field

The utility model relates to a bearing extracting tool technical field especially relates to a device is changed to bale revolving platform joint axle and bearing.

Background

At present, when a joint shaft and a bearing of a bale rotary table of a domestic slab continuous casting machine are replaced, workpieces such as a bale arm and the like are detached one by one or are installed one by one after the bale arm and a cross beam are detached in the replacement process, or multiple cranes are used for performing cross operation, the process is complex and unsafe, the replacement time is too long, the influence on production is large, and the labor intensity is high. The traditional replacement scheme in the past cannot meet the requirements of safety, high efficiency and high quality, so a new replacement technology needs to be designed to meet the current requirements.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a device is changed to bale revolving platform articulated shaft and bearing makes the change process of articulated shaft and bearing simple and convenient, convenient operation, and the apparatus of use is simple, does not receive site conditions's influence, whole change process safe and reliable, efficient.

In order to achieve the above object, the present invention provides a technical solution for solving the technical problem: the bale rotary table joint shaft and bearing replacing device comprises a rotary table body, two groups of crossed arms connected through a cross beam are symmetrically arranged on two sides of the rotary table body respectively, each group of crossed arms comprises a bale arm and a connecting arm, one end of the bale arm is connected with the rotary table body through the connecting arm and the cross beam, the cross beam is rotatably connected with the upper portion of the rotary table body through the joint shaft and a bearing, hoisting structures are arranged on the bale arm and the cross beam, a vertical jacking component is arranged below the connecting arm, a horizontal ejection component is connected between the two groups of crossed arms in a sliding mode, and two ejection ends of the horizontal ejection component are opposite to the two joint shafts respectively.

Furthermore, a sliding track is arranged on the rotary table body along the length direction of the rotary table body, the horizontal ejection component comprises a horizontal jack and a square billet connected with the horizontal jack, the horizontal jack and the square billet are connected to the sliding track in a sliding mode, and the ejection end of the horizontal jack and the outer end of the square billet are opposite to the two joint shafts respectively.

Furthermore, an extension shaft is arranged at the outer end of the square billet and is opposite to the joint shaft, the diameter of the extension shaft is smaller than that of the joint shaft, and the diameter of the ejection end of the horizontal jack is smaller than that of the joint shaft.

Furthermore, the vertical jacking parts are symmetrically arranged at two ends of the lower part of the revolving platform body, and are positioned below the connecting arm and are in contact with the connecting arm.

Further, the vertical jacking component comprises a mounting plate blank and a vertical jack, the mounting plate blank is welded on the rotary table body and is located below the linkage arm, the vertical jack is fixed on the mounting plate blank, and the jacking end of the vertical jack is in contact with the center of the bottom of the linkage arm.

Furthermore, the outer side upper end of the bale arm is detachably connected with a counterweight plate blank, and a bearing vehicle is arranged below the bale arm.

Further, the lifting structure comprises a lifting lug I, a lifting lug II and a lifting lug III which are connected with the chain block, the lifting lug I and the lifting lug II are arranged at the middle part of the cross beam and the cross beam are far away from one end of the revolving platform body, and the lifting lug III is arranged at one end, close to the revolving platform body, of the ladle arm.

Furthermore, the hoisting structure further comprises a hoisting support arranged in the middle of the bale arm, and the hoisting support is connected with a lifting hook of the crane.

The utility model has the advantages that:

1. the utility model discloses a hang and rise equipment and hang and rise the structure and link to each other, hang and rise an allocation position with bale arm back locking, the weightlessness problem of collapsing that the later stage dismantlement process brought has been prevented, make the operation safe and reliable more, and provide the holding power for hanging through the vertical jacking part of antithetical couplet arm below, the holding power is adjustable, can make the bearing quick adjustment to the state of not atress, then it is outwards ejecting simultaneously with the articulated shaft on two sets of crossing arms to use horizontal ejection part, then demolish the bearing, it makes the one end of crossbeam relative with the bearing installation position to adjust the equipment that hangs after installing new bearing, put the articulated shaft in place, bale revolving platform can resume the use, make the change process of articulated shaft and bearing simple and convenient, high efficiency of whole change process.

2. Specifically, the horizontal ejection part is connected to the rotary table body in a sliding mode, the horizontal ejection part comprises a horizontal jack and a square billet connected with the horizontal jack, the outer ends of the horizontal jack and the square billet are opposite to the two joint shafts respectively, when the ejection end of the horizontal jack extends out to jack one of the joint shafts, the square billet can jack the other joint shaft at the same time, the two joint shafts can be ejected out simultaneously due to the action of the horizontal jack, the use cost is reduced, and the dismantling efficiency is improved.

3. In addition, the upper end of the outer side of the large wrapping arm is provided with a counterweight plate blank, a bearing vehicle is arranged below the large wrapping arm, the counterweight plate blank can automatically fall back to the bearing vehicle by virtue of the counterweight after the joint shaft is ejected out, and the crane at the moment can be separated from the large wrapping arm to be used for other production, so that application resources are saved, the dismounting state of the large wrapping arm is more stable, and the safety is stronger.

In conclusion, the bearing replacing device is simple in overall structure and low in use cost, the replacing process of the joint shaft and the bearing is simple and convenient, the operation is convenient, the used instruments are simple, the influence of field conditions is avoided, and the whole replacing process is safe and reliable and high in efficiency.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

FIG. 1 is a schematic structural view of one side of a tundish revolving platform of the present invention;

FIG. 2 is a schematic view of the bearing of FIG. 1 with the bearing removed;

FIG. 3 is a schematic structural view of the connection between the horizontal top-out member and the linking arm in FIG. 2;

FIG. 4 is a top view of FIG. 2;

the labels in the above figures are: 1. the lifting platform comprises a rotary table body, 11 sliding rails, 2 cross arms, 21 ladle arms, 22 coupling arms, 23 cross beams, 3 joint shafts, 4 bearings, 5 vertical jacking components, 51 installation slabs, 52 vertical jacks, 6 horizontal jacking components, 61 horizontal jacks, 62 square billets, 621 extension shafts, 7 counterweight slabs, 8 bearing cars, 9 lifting lugs I, 10 lifting lugs II, 12 lifting lugs III and 13 lifting supports.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses specific embodiment does: as shown in fig. 1 to 4, a bale rotary table joint shaft and bearing replacing device comprises a rotary table body 1, two groups of cross arms 2 connected through a cross beam 23 are symmetrically arranged on two sides of the rotary table body 1 respectively, each group of cross arms 2 comprises a bale arm 21 and a connecting arm 22, one end of the bale arm 21 is connected with the rotary table body 1 through the connecting arm 22 and the cross beam 23, the cross beam 23 is rotatably connected with the upper part of the rotary table body 1 through a joint shaft 3 and a bearing 4, the bale arm 21 and the cross beam 23 are both provided with lifting structures, the bale arm 21 is lifted to a certain position and then locked, the weight loss collapse problem caused by the later-period disassembly process is prevented, the operation is safer and more reliable, a vertical jacking component 5 is arranged below the connecting arm 22, a horizontal jacking component 6 is slidably connected between the two groups of cross arms 2, two jacking ends of the horizontal jacking component 6 are respectively opposite to the two joint shafts 3, the supporting force is provided for lifting through the vertical jacking component 5, the supporting force is adjustable, the bearing 4 can be quickly adjusted to be in a stress-free state, then the joint shafts 3 on the two groups of cross arms 2 are simultaneously ejected outwards by the horizontal jacking component 6, then the bearing 4 is disassembled, new bearing 4 is installed, lifting equipment is adjusted to enable one end of the cross beam to be opposite to the installation position of the bearing 4, the joint shafts 3 are installed in place, the bale rotary table can be recovered for use, the replacement process of the joint shafts and the bearings is simple and convenient, the operation is convenient, and the efficiency of the whole replacement process is high.

Specifically, as shown in fig. 4, a sliding rail 11 is disposed on the turntable body 1 along the length direction thereof, the horizontal ejection component 6 includes a horizontal jack 61 and a square billet 62 connected thereto, the horizontal jack 61 and the square billet 62 are slidably connected to the sliding rail 11, the sliding rail 11 can be set to a sliding groove structure, the ejection end of the horizontal jack 61 and the outer end of the square billet 62 are respectively opposite to the two joint shafts 3, specifically, the outer end of the square billet 62 is provided with an extension shaft 621, the extension shaft 621 is opposite to the joint shafts 3, the diameter of the extension shaft 621 is smaller than that of the joint shafts 3, the diameter of the ejection end of the horizontal jack 61 is smaller than that of the joint shafts 3, it is ensured that the joint shafts 3 can be ejected outwards by the horizontal jack 61 and the extension shaft 621, when the ejection end of the horizontal jack 61 extends to eject one of the joint shafts 3, the extension shaft 621 of the square billet 62 also ejects the other joint shaft 3, the action of the horizontal jack 61 enables the two joint shafts 3 to be ejected out simultaneously, thereby reducing the use cost and improving the dismantling efficiency.

Specifically, as shown in fig. 3, vertical jacking components 5 are symmetrically arranged at two ends of the lower portion of the rotary table body 1, the vertical jacking components 5 are located below the link arm 22 and are in contact with the link arm 22, each vertical jacking component 5 comprises a mounting plate blank 51 and a vertical jack 52, the mounting plate blank 51 is welded on the rotary table body 1 and is located below the link arm 22, the vertical jack 52 is fixed on the mounting plate blank 51, the mounting plate blank 51 provides a mounting space for the vertical jack 52, the ejection end of the vertical jack 52 is in contact with the bottom center of the link arm 22, the force of the link arm 22 can be adjusted by adjusting the ejection length of the vertical jack 52, and the bearing 4 can be rapidly adjusted to an unstressed state by matching with hoisting equipment.

Specifically, as shown in fig. 1 and fig. 2, the lifting structure includes a lifting lug i 9, a lifting lug ii 10 and a lifting lug iii 12 connected to the chain block, the lifting lug i 9 and the lifting lug ii 10 are disposed in the middle of the cross beam 23 and at one end of the cross beam 23 far away from the turntable body 1, the lifting lug iii 12 is disposed at one end of the ladle arm 21 close to the

turntable body

1, and 3 chain blocks are respectively mounted on the lifting lug i 9, the lifting lug ii 10 and the lifting lug iii 12, so that the cross beam 23 and the ladle arm 21 can be lifted upwards, and the stress of the bearing 4 is gradually reduced; the middle part of big package arm 21 is provided with lifts by crane support 13, lifts by crane support 13 and links to each other with the lifting hook of hoist, because the lifting hook of hoist has the locking function, uses the hoist to carry out position locking with big package arm 21, has prevented that the later stage from dismantling the weightlessness problem of collapsing that articulated shaft 3 processes brought, makes the operation safe and reliable more.

In addition, the upper end of the outer side of the large wrapping arm 21 is detachably connected with a counterweight plate blank 7, a bearing vehicle 8 is arranged below the large wrapping arm 21, the counterweight plate blank 7 can fall back to the bearing vehicle 8 automatically by virtue of a counterweight after the joint shaft 3 is ejected out, and the crane at the moment can be separated from the large wrapping arm to be used for other production, so that the application resources are saved, the dismounting state of the large wrapping arm is more stable, and the safety is stronger.

The method for replacing the joint shaft and the bearing by using the replacing device comprises the following steps: firstly, respectively installing lifting hooks of three pairs of chain blocks on a lifting lug I9, a lifting lug II 10 and a lifting lug III 12, tensioning a chain, and then installing the lifting hook of a crane on a lifting bracket 13 to lock a bale arm 21; then, adjusting the ejection length of the vertical jack 52 to enable the vertical jack 52 to eject the link arm 22 upwards for a certain distance, and adjusting the chain block connected with the lifting lug II 10 and the lifting lug III 12 to enable the bearing 4 not to be stressed; then, operating the horizontal jack 61 to enable the extending end of the horizontal jack 61 and the extending end of the square billet 62 to prop against the two opposite joint shafts 3, ejecting the two joint shafts 3 outwards, and then disassembling the bearing 4; finally, the crane is separated from the bale arm 21, the bale arm 21 falls onto the carrying vehicle 8 downwards under the balance weight of the balance weight plate blank 7, the bale arm 21 is lifted by the crane after the new bearing 4 is installed, the chain block is adjusted to enable one end of the cross beam 23 to move to the installation position of the joint shaft 3, the chain block is detached and the crane is removed after the new joint shaft 3 is installed, and the bale rotary table can be recovered for use.

The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.

Claims

1. A bale rotary table joint shaft and bearing replacing device is characterized by comprising a rotary table body (1), two groups of crossed arms (2) connected through a cross beam (23) are respectively and symmetrically arranged on two sides of the rotary table body (1), each group of crossed arms (2) comprises a big ladle arm (21) and a connecting arm (22), one end of the big ladle arm (21) is connected with the rotary table body (1) through the connecting arm (22) and the cross beam (23), the cross beam (23) is rotationally connected with the upper part of the rotary table body (1) through a joint shaft (3) and a bearing (4), the ladle arm (21) and the cross beam (23) are both provided with hoisting structures, a vertical jacking component (5) is arranged below the connecting arm (22), a horizontal jacking component (6) is connected between the two groups of cross arms (2) in a sliding way, two ejection ends of the horizontal ejection component (6) are respectively opposite to the two joint shafts (3).

2. The bale turret joint shaft and bearing replacement device of claim 1, wherein: be provided with slip track (11) along its length direction on revolving platform body (1), horizontal ejection part (6) are including horizontal jack (61) and square billet (62) that link to each other with it, horizontal jack (61) and square billet (62) sliding connection be in on slip track (11), the ejection end of horizontal jack (61) and the outer end of square billet (62) are relative with two articulated shafts (3) respectively.

3. The bale turret joint shaft and bearing replacement device of claim 2, wherein: an extension shaft (621) is arranged at the outer end of the square billet (62), the extension shaft (621) is opposite to the joint shaft (3), the diameter of the extension shaft (621) is smaller than that of the joint shaft (3), and the diameter of the ejection end of the horizontal jack (61) is smaller than that of the joint shaft (3).

4. The bale turret joint shaft and bearing changing apparatus according to any of claims 1-3, wherein: the vertical jacking parts (5) are symmetrically arranged at two ends of the lower portion of the rotary table body (1), and the vertical jacking parts (5) are located below the connecting arm (22) and are in contact with the connecting arm (22).

5. The bale turret joint shaft and bearing replacement device of claim 4, wherein: the vertical jacking component (5) comprises a mounting plate blank (51) and a vertical jack (52), the mounting plate blank (51) is welded on the rotary table body (1) and is located below the linkage arm (22), the vertical jack (52) is fixed on the mounting plate blank (51), and the jacking end of the vertical jack (52) is in contact with the center of the bottom of the linkage arm (22).

6. The bale turret joint shaft and bearing replacement device of claim 4, wherein: the outer side upper end of the big wrapping arm (21) is detachably connected with a counterweight plate blank (7), and a bearing vehicle (8) is arranged below the big wrapping arm (21).

7. The bale turret joint shaft and bearing replacement device of claim 4, wherein: the lifting structure comprises a lifting lug I (9), a lifting lug II (10) and a lifting lug III (12) which are connected with a chain block, the lifting lug I (9) and the lifting lug II (10) are arranged at the middle of a cross beam (23) and the cross beam (23) are far away from one end of the revolving platform body (1), and the lifting lug III (12) is arranged at one end of the revolving platform body (1) close to a bale arm (21).

8. The bale turret joint shaft and bearing replacement device of claim 4, wherein: the hoisting structure further comprises a hoisting support (13) arranged in the middle of the bale arm (21), and the hoisting support (13) is connected with a lifting hook of a crane.