CN215487278U - Rolling mill bearing mounting and dismounting tool - Google Patents

Abstract

The utility model provides a rolling mill bearing mounting and dismounting tool, which relates to the technical field of bearing mounting and dismounting and comprises two swing arms, a support rod and two hoisting rings, wherein the upper ends of the swing arms are hinged through a rotating shaft, the lower ends of the swing arms are provided with supporting plates, and the middle parts of the two swing arms are respectively provided with a mounting seat; the support rod is connected to the two mounting seats; the hoisting ring is arranged on the outer side of the swing arm and is used for being connected with a steel wire rope of the crown block. According to the mounting and dismounting tool for the bearings of the rolling mills, the lower ends of the two swing arms are opened by utilizing the rotating shaft, the lower end faces of the bearings are supported by the support plates at the lower ends of the swing arms, the locking of the relative positions of the two swing arms is realized through the connection of the support rods and the mounting seats, the support plates are prevented from falling out of inner holes of the bearings due to the fact that the swing arms swing around the rotating shaft to the adjacent sides, the support rods and the mounting seats are detachably connected, the included angle between the two swing arms can be conveniently adjusted in time, the tool is suitable for hoisting the bearings of different specifications, and the tool has good universality.

Description

Rolling mill bearing mounting and dismounting tool

Technical Field

The utility model belongs to the technical field of bearing mounting and dismounting, and particularly relates to a mounting and dismounting tool for a rolling mill bearing.

Background

During the rolling process, the roller bearing is used for supporting the roller so as to keep the roller at the right position in the frame. The roller bearing is required to have a small friction coefficient, sufficient strength and convenient roller replacement. The roll bearings are subjected to considerable rolling forces in the relatively short roll necks and to very high unit loads.

Therefore, the assembly of the rolling mill bearing seat is an important operation process in the steel rolling process, and the accurate installation of the bearing can ensure that the rolling mill bearing is effectively protected. The bearing hoisting clamp used at present can not be suitable for elevators of bearings with different specifications, is difficult to ensure the accuracy of bearing installation, and is easy to generate the inclination caused by unreasonable hoisting clamping points to cause the safety problem of personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mounting and dismounting tool for a bearing of a rolling mill, which can be suitable for hoisting bearings of various specifications and is convenient for ensuring the mounting precision of the bearing.

In order to achieve the purpose, the utility model adopts the technical scheme that: the rolling mill bearing mounting and dismounting tool comprises two swing arms, a support rod and two hoisting rings, wherein the upper ends of the swing arms are hinged through a rotating shaft, the lower ends of the swing arms are provided with supporting plates which are used for extending into inner rings of bearings to support the lower end faces of the bearings, and the middle parts of the two swing arms are respectively provided with a mounting seat; the supporting rod is connected to the two mounting seats and used for limiting the relative positions of the two mounting seats so as to enable the two swing arms to be opened to form a certain included angle; the hoisting ring is arranged on the outer side of the swing arm and is used for being connected with a steel wire rope of the crown block.

In a possible implementation manner, the mounting seat comprises a fixing sleeve and a mounting ring, and a main shaft of the fixing sleeve is connected to the inner side of the middle part of the swing arm in parallel with the axial direction of the rotating shaft; the mounting ring is connected on the fixed sleeve through a threaded rod, the supporting rod penetrates through the mounting ring and is in threaded connection with the mounting ring, and the supporting rod is in threaded connection with a locking nut used for locking the relative position of the supporting rod and the mounting ring.

In some embodiments, two lock nuts are provided, each located inside one of the two mounting rings, and each lock nut abuts against an end face of the corresponding mounting ring.

In a possible implementation manner, the main shaft of the hoisting ring is parallel to the main shaft of the rotating shaft, and the two hoisting rings are symmetrically arranged on the two swing arms.

In some embodiments, the hoisting ring is further connected with a hoisting piece, the hoisting piece comprises a cross rod and a lifting lug, and the cross rod penetrates through the hoisting ring; the lug is the U-shaped spare that the opening is decurrent, and the horizontal pole is connected in the lower extreme of lug for the opening of shutoff lug, wire rope wear to locate in the hole that lug and horizontal pole formed.

In some embodiments, the lifting lug has a first extending portion extending downward and a second extending portion disposed parallel to the first extending portion, a through hole is disposed at a lower end of the first extending portion, a threaded hole is disposed on the second extending portion, an external thread is disposed at one end of the cross rod, and the cross rod is disposed in the through hole and is matched with the threaded hole through the external thread.

In a possible implementation mode, the lower end of the swing arm is connected to the center of the surface of the supporting plate, and the supporting plate is provided with a radian matched with the inner ring of the bearing in the horizontal direction.

In some embodiments, a top surface of the plate is provided with a compliant pad for supporting the bearing.

In a possible implementation manner, the upper ends of the swing arms are respectively provided with a hinged seat which is used for being matched with the rotating shaft in a rotating mode, the hinged seat is provided with an opening which is arranged towards the rotating shaft and is communicated up and down, and the rotating shaft penetrates through the hinged seat and the opening.

In one possible implementation, the swing arm is a rectangular tube.

The shown scheme of this application embodiment, compared with the prior art, the frock is torn open in rolling mill bearing ann that this application embodiment provided, utilize the pivot to make the lower extreme of two swing arms open, the lower terminal surface of bearing carries out the bearing with the help of the layer board of swing arm lower extreme, the locking of the relative position of two swing arms is realized to the connection through bracing piece and mount pad, avoid the swing arm to revolute the adjacent one side swing of axial and make the layer board deviate from the hole of bearing, for dismantling the form of being connected between bracing piece and the mount pad, be convenient for in good time adjust the contained angle between two swing arms, make this frock be applicable to the hoist and mount of the bearing of different specifications, good commonality has, be applicable to the assembly of the bearing of different specifications.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a rolling mill bearing mounting and dismounting tool provided in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a right-view structure of the swing arm and the lifting member in the embodiment of the present invention shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the swing arm, the support rod and the mounting seat in the direction A in FIG. 1 according to the present invention;

FIG. 4 is a schematic cross-sectional view of B-B in FIG. 1 according to an embodiment of the present invention;

fig. 5 is a schematic top view of a swing arm and a hinge base in fig. 1 according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1. swinging arms; 11. a rotating shaft; 2. a support bar; 3. hoisting a ring; 4. a support plate; 41. a flexible cushion layer; 5. a mounting seat; 51. fixing a sleeve; 52. a mounting ring; 53. locking the nut; 54. a threaded rod; 6. hoisting a piece; 61. a cross bar; 62. lifting lugs; 621. a first extension portion; 622. a second extension portion; 7. a hinged seat; 8. a steel cord.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and are therefore not to be considered limiting. 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, "a number" means two or more unless specifically limited otherwise.

When carrying out the installation of bearing, the main shaft of bearing is the form that sets up along the up-down direction, open two swing arms 1 and swing arm 1's lateral surface and the inner circle contact of bearing, utilize layer board 4 bearing's of swing arm 1 below lower terminal surface, utilize the wire rope 8 of overhead traveling crane to promote the hoisting ring 3 on the swing arm 1, the realization lifts by crane in step to swing arm 1 and below bearing, the overhead traveling crane drives the bearing and removes the position back of required installation, wire rope 8 drives swing arm 1 and the bearing whereabouts to the mounting hole of the bearing frame of treating the installation, after the installation, adjust the bracing piece 2, make swing arm 1 draw in to adjacent one side, can deviate from in the inner circle of bearing until layer board 4, can take out this frock smoothly.

Referring to fig. 1 to 5, the assembling and disassembling assembly of the rolling mill bearing according to the present invention will now be described. The rolling mill bearing mounting and dismounting tool comprises two swing arms 1, a support rod 2 and two hoisting rings 3, wherein the upper ends of the swing arms 1 are hinged through a rotating shaft 11, the lower ends of the swing arms are provided with support plates 4 which are used for extending into inner rings of bearings to support the lower end surfaces of the bearings, and the middle parts of the two swing arms 1 are respectively provided with a mounting seat 5; the support rod 2 is connected to the two mounting seats 5 and used for limiting the relative positions of the two mounting seats 5 so as to enable the two swing arms 1 to be opened to form a certain included angle; the hoisting ring 3 is arranged on the outer side of the swing arm 1 and is used for being connected with a steel wire rope 8 of a crown block.

The rolling mill bearing ann that this embodiment provided tears frock open, compared with the prior art, the rolling mill bearing ann that this embodiment provided tears frock open, utilize pivot 11 to make two lower extremes of swing arm 1 open, lower terminal surface to the bearing carries out the bearing with the help of layer board 4 of swing arm 1 lower extreme, the locking of the relative position of two swing arms 1 is realized to being connected through bracing piece 2 and mount pad 5, avoid swing arm 1 to revolute 11 to adjacent one side swing and make layer board 4 deviate from the hole of bearing, the form of being connected can dismantle between bracing piece 2 and the mount pad 5, be convenient for in good time adjust the contained angle between two swing arms 1, make this frock be applicable to the hoist and mount of the bearing of different specifications, good commonality has, be applicable to the assembly of the bearing of different specifications.

In some possible implementations, the above-mentioned feature mounting seat 5 adopts a structure as shown in fig. 3. Referring to fig. 3, the mounting seat 5 comprises a fixing sleeve 51 and a mounting ring 52, wherein the main shaft of the fixing sleeve 51 is connected to the inner side of the middle part of the swing arm 1 in parallel with the axial direction of the rotating shaft 11; the mounting ring 52 is connected to the fixing sleeve 51 through a threaded rod 54, the support rod 2 penetrates through the mounting ring 52 and is in threaded connection with the mounting ring 52, and a locking nut 53 for locking the relative position of the support rod 2 and the mounting ring 52 is in threaded connection with the support rod 2. Fixed cover 51 welds the inboard at swing arm 1, collar 52 passes through threaded rod 54 and fixed cover 51 threaded connection, the axle center of collar 52 can carry out circumferencial direction's adjustment around the axle center of threaded rod 54, can be to the change of angle between two swing arms 1, correspond the adjustment so that bracing piece 2 can pass collar 52 smoothly, realize the screw-thread fit with collar 52, and then realize bracing piece 2 and effectively inject two swing arm 1 relative contained angles, guarantee the effective bearing of lower extreme layer board 4 to the lower terminal surface of bearing.

Referring to fig. 1, in some embodiments, on the basis of locking the relative positions of the mounting rings 52 and the support rod 2 by using the locking nuts 53, two locking nuts 53 are provided, which are respectively located on the inner sides of the two mounting rings 52, and each locking nut 53 abuts against the end surface of the corresponding mounting ring 52.

To two mount rings 52 that set up on two swing arms 1, two lock nut 53 have been set up to the correspondence on bracing piece 2, lock nut 53 is located the inboard of mount ring 52 respectively, also be exactly two adjacent one sides of mount ring 52, the outer terminal surface that utilizes lock nut 53 and the terminal surface of mount ring 52 carry out the top tightly, guarantee two swing arms 1 and open the stability of angle, make two layer boards 4 relative position of lower extreme stable, play effectual supporting role to the lower terminal surface of bearing.

In some possible implementations, the main axis of the hoisting ring 3 is parallel to the main axis of the rotating shaft 11, and the two hoisting rings 3 are symmetrically arranged on the two swing arms 1.

Can directly set up hoisting ring 3 in the outside of swing arm 1, can utilize the wire rope 8 of overhead traveling crane directly to pass hoisting ring 3 and realize that the hoist and mount of whole frock rise, reach the effect of synchronous hoisting lower part bearing. In order to keep the stability of the position of the bearing in the lifting process, the two hoisting rings 3 are symmetrically arranged on the outer sides of the two swing arms 1, so that the lifting force can be uniformly distributed. Meanwhile, the main shaft of the hoisting ring 3 is arranged in a manner parallel to the main shaft of the rotating shaft 11, so that the steel wire rope 8 can be conveniently inserted into the hoisting ring, and the effect of stably lifting the swing arm 1 and the bearing below the swing arm is achieved.

Referring to fig. 2, on the basis of hoisting in the tool and the bearing by using the hoisting ring 3, the hoisting ring 3 is further connected with a hoisting piece 6, the hoisting ring 3 is further connected with the hoisting piece 6, the hoisting piece 6 comprises a cross rod 61 and a lifting lug 62, and the cross rod 61 penetrates through the hoisting ring 3; the lifting lug 62 is a U-shaped part with a downward opening, the cross rod 61 is connected to the lower end of the lifting lug 62 and used for plugging the opening of the lifting lug 62, and the steel wire rope 8 is arranged in a hole formed by the lifting lug 62 and the cross rod 61 in a penetrating mode.

The hoisting piece 6 arranged on the hoisting ring 3 has larger air passage flexibility in the hoisting process, and the jamming generated between the steel wire rope 8 and the hoisting ring 3 is avoided to influence the hoisting balance. Utilize horizontal pole 61 to pass the annular ring of hoist and mount ring 3, hoist and mount ring 3 extends certain length in its axial, can play stable supporting effect to horizontal pole 61, is connected with the lug 62 of U-shaped on the horizontal pole 61, and wire rope 8 can pass the hole that lug 62 and horizontal pole 61 formed smoothly, when utilizing wire rope 8 to lift by crane, can take place relative rotation between horizontal pole 61 and the hoist and mount ring 3, improves the flexibility of being connected between wire rope 8 and the hoist and mount ring 3.

In some embodiments, the lifting lug 62 has a first extending portion 621 extending downward and a second extending portion 622 disposed parallel to the first extending portion 621, a through hole is disposed at a lower end of the first extending portion 621, a threaded hole is disposed on the second extending portion 622, an external thread is disposed at one end of the cross bar 61, and the cross bar 61 is disposed in the through hole and is matched with the threaded hole through the external thread.

The cross bar 61 passes through the through hole on the first extension 621, and is matched with the threaded hole on the second extension 622 by means of the external thread on the end portion, so as to achieve the locking of the relative position with the lifting lug 62. The end of the cross rod 61 far away from the external thread is provided with a rotating button, so that the cross rod 61 can be rotated conveniently, and the operation convenience is improved.

Referring to fig. 4, it should be noted that, in order to enable the supporting plate 4 to be stably connected to the lower end of the swing arm 1, the lower end of the swing arm 1 is connected to the center of the plate surface of the supporting plate 4, and the supporting plate 4 is provided with a radian matched with the inner ring of the bearing in the horizontal direction. The part of layer board 4 through being located the swing arm 1 outside carries out the bearing, and in order to improve the reliability of bearing, avoids outside atress to cause the problem of outside below slope, connects the lower extreme of swing arm 1 in the center department of layer board 4, is located layer board 4 of swing arm 1 inboard and does not receive the bearing power, but is convenient for guarantee the equilibrium of whole layer board 4 atress. Further, for the cooperation that can be better with the lower terminal surface of bearing, layer board 4 has certain radian, and this radian can be with the inner circle radian phase-match of bearing, improves the bearing effect of layer board 4 terminal surface under to the bearing.

Referring to fig. 1, on the basis of supporting the bearing by the supporting plate 4, a flexible cushion layer 41 for supporting the bearing is arranged on the top surface of the supporting plate 4. The flexible cushion layer 41 can prevent the supporting plate 4 from being in rigid contact with the lower end face of the bearing, and avoid scraping damage to the surface of the bearing.

In some possible implementations, referring to fig. 1 and 5, the upper ends of the swing arms 1 are respectively provided with a hinge seat 7 for rotationally matching with the rotating shaft 11, the hinge seat 7 has an opening which is disposed toward the rotating shaft 11 and is through up and down, and the rotating shaft 11 is disposed through the hinge seat 7 and the opening. The upper part of the swing arm 1 is fixedly provided with a hinged seat 7, and the hinged seat can adopt a welding connection mode. The hinged seat 7 facilitates the arrangement of the rotating shaft 11, and further realizes the relative rotation between the two swing arms 1. Two articulated seats 7 are equipped with the opening of relative setting respectively, and one of them articulated seat 7 can insert in the opening of another articulated seat 7, and pivot 11 runs through two articulated seat 7 settings, is convenient for carry out laying and installing of pivot 11.

Referring to fig. 4, specifically, the swing arm 1 is a rectangular tube. The rectangular pipe is not only convenient for carry on the installation of hoisting ring 3 and mount pad 5, still has simultaneously and is convenient for draw materials, advantage that the cost is lower.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. Frock is torn open in rolling mill bearing ann, its characterized in that includes:

the upper ends of the two swing arms are hinged through a rotating shaft, the lower ends of the two swing arms are provided with supporting plates which are used for extending into the inner ring of the bearing to support the lower end face of the bearing, and the middle parts of the two swing arms are respectively provided with a mounting seat;

the supporting rod is connected to the two mounting seats and used for limiting the relative positions of the two mounting seats so as to enable the two swing arms to be opened to form a certain included angle;

and the two hoisting rings are arranged on the outer side of the swing arm and are used for being connected with a steel wire rope of the crown block.

2. The rolling mill bearing mounting and dismounting tool according to claim 1, wherein the mounting seat comprises:

the main shaft is parallel to the axial direction of the rotating shaft and is connected to the inner side of the middle part of the swing arm;

the mounting ring is connected to the fixed sleeve through a threaded rod, the supporting rod penetrates through the mounting ring and is in threaded connection with the mounting ring, and the supporting rod is in threaded connection with a locking nut used for locking the relative position of the supporting rod and the mounting ring.

3. The rolling mill bearing mounting and dismounting tool according to claim 2, wherein the two locking nuts are arranged on the inner sides of the two mounting rings respectively, and each locking nut abuts against the end face of the corresponding mounting ring.

4. The rolling mill bearing mounting and dismounting tool according to claim 1, wherein a main shaft of the hoisting ring is parallel to a main shaft of the rotating shaft, and the two hoisting rings are symmetrically arranged on the two swing arms.

5. The rolling mill bearing mounting and dismounting tool according to claim 4, wherein a hoisting piece is further connected to the hoisting ring, and the hoisting piece comprises:

the cross rod penetrates through the hoisting ring;

the lifting lug is a U-shaped piece with a downward opening, the cross rod is connected to the lower end of the lifting lug and used for plugging the opening of the lifting lug, and the steel wire rope is arranged in the hole formed by the lifting lug and the cross rod in a penetrating mode.

6. The rolling mill bearing mounting and dismounting tool according to claim 5, wherein the lifting lug is provided with a first extending portion extending downwards and a second extending portion arranged in parallel with the first extending portion, a through hole is formed in the lower end of the first extending portion in a penetrating mode, a threaded hole is formed in the second extending portion, an external thread is formed in one end of the cross rod, and the cross rod is arranged in the through hole in a penetrating mode and matched with the threaded hole through the external thread.

7. The rolling mill bearing mounting and dismounting tool according to claim 1, wherein the lower end of the swing arm is connected to the center of the plate surface of the supporting plate, and the supporting plate is provided with a radian matched with the inner ring of the bearing in the horizontal direction.

8. The rolling mill bearing mounting and dismounting tool according to claim 7, wherein a flexible cushion layer for supporting the bearing is arranged on the top surface of the supporting plate.

9. The rolling mill bearing mounting and dismounting tool according to any one of claims 1 to 8, wherein the upper ends of the swing arms are respectively provided with a hinge seat which is used for being in running fit with the rotating shaft, the hinge seats are provided with openings which are arranged towards the rotating shaft and are communicated up and down, and the rotating shaft penetrates through the hinge seats and the openings.

10. The rolling mill bearing mounting and dismounting tool of claim 9, wherein the swing arm is a rectangular tube.

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