CN211614774U

CN211614774U - Roller head assembling trolley

Info

Publication number: CN211614774U
Application number: CN201922070208.1U
Authority: CN
Inventors: 晏宏山; 李元春; 肖连华; 马佳; 李明军; 张殿丁
Original assignee: Tangshan Iron and Steel Group Co Ltd; HBIS Co Ltd Tangshan Branch
Current assignee: Tangshan Iron and Steel Group Co Ltd; HBIS Co Ltd Tangshan Branch
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-10-02
Anticipated expiration: 2029-11-27

Abstract

The utility model relates to a roll roller head assembly trolley belongs to metallurgical maintenance equipment field. The hydraulic lifting device comprises small wheels (6), a bottom plate (7), a hydraulic jack (8), a supporting plate (9) and a V-shaped support (10), wherein the hydraulic jack (8) is arranged on the upper end face of the bottom plate (7), the small wheels (6) are arranged on the lower end face of the bottom plate (7), the supporting plate (9) is arranged on the hydraulic jack (8), and the V-shaped support (10) is arranged on the upper end face of the supporting plate (9). The device is convenient to operate, can be suitable for assembling the roller heads of different roller necks, ensures the centering quality, has high assembling precision and improves the assembling quality. By adopting the device to assemble the roller head, the occupied time of the crown block is reduced, and the labor is reduced. And the hydraulic jack is adopted to support and other parts, so that the universality is strong and the manufacture is easy.

Description

Roller head assembling trolley

Technical Field

The utility model relates to a roll roller head assembly trolley belongs to metallurgical maintenance equipment field.

Background

The roller is an important part on a rolling mill in a steel mill, belongs to a large-scale shaft part from the viewpoint of mechanical processing, and is characterized by large size and heavy weight. The roller is generally manufactured by adopting an integral casting or composite metallurgy casting mode and mainly comprises a roller head, a roller neck and a roller body, wherein the roller head part of some special rollers has smaller diameter and longer length than the roller neck due to the diameter, and the part is difficult to manufacture by a casting method and needs to be assembled on a roller body through a later stage.

The roller head belongs to axle type part, and weight is heavier, is connected with the roll neck through screw-thread fit's mode, need heat the back with the roll neck at the in-process of assembly, with the roller head through screw thread screw in roll neck mounting hole, requires that the assembly precision is high (the fit tolerance is about 0.3 mm). Because the roller head is heavy, a plurality of workers are needed to cooperate and complete in the assembling process, and the operation difficulty is high. The roller head is easy to incline in the assembling process, the roller head is scrapped, the roller neck needs to be re-processed, and the processing time and the processing materials are wasted. Therefore, a roller head assembling device is needed to be designed, so that the roller head assembling efficiency and success rate are improved, and the assembling cost is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a roll roller head assembly dolly is provided, improves roller head assembly efficiency, success rate, reduces assembly cost.

The utility model adopts the technical proposal that:

the roller head assembling trolley comprises small wheels, a bottom plate, a hydraulic jack, a supporting plate and a V-shaped support, wherein the hydraulic jack is arranged on the upper end face of the bottom plate, the small wheels are arranged on the lower end face of the bottom plate, the supporting plate is arranged on the hydraulic jack, and the V-shaped support is arranged on the upper end face of the supporting plate.

The roller head assembling trolley for the roller is characterized in that 3-6 small wheels are provided.

The roller head assembling trolley for the roller is characterized in that 3-6 hydraulic jacks are arranged.

According to the roller head assembling trolley for the roller, the number of the V-shaped supports is 2-4.

According to the roller head assembling trolley for the roller, the V-shaped angle of the V-shaped support is 60-100 degrees.

According to the roller head assembling trolley for the roller, the rolling bearings are mounted on the two side end faces of the V-shaped bracket.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the device is convenient to operate, can be suitable for assembling the roller heads of different roller necks, ensures the centering quality, has high assembling precision and improves the assembling quality. By adopting the device to assemble the roller head, the occupied time of the crown block is reduced, and the labor is reduced. And the hydraulic jack is adopted to support and other parts, so that the universality is strong and the manufacture is easy.

Drawings

FIG. 1 is a front view of the structure of the device of the present invention;

fig. 2 is a side view of the device of the present invention;

fig. 3 is a state diagram of the device of the present invention when applied to installation;

the labels in the figure are: the roller comprises a roller neck 1, an assembling hole 2, a roller head 3, an assembling trolley 4, a rotating rod 5, a small wheel 6, a bottom plate 7, a hydraulic jack 8, a supporting plate 9, a V-shaped bracket 10 and a rolling bearing 11.

Detailed Description

The technical solution in the embodiment of the present invention is described below with reference to the drawings in the embodiment of the present invention.

As shown in the attached drawings, the roller head assembling trolley comprises small wheels 6, a bottom plate 7, hydraulic jacks 8, supporting plates 9 and V-shaped supports 10, wherein the hydraulic jacks 8 are arranged on the upper end face of the bottom plate 7, the small wheels 6 are arranged on the lower end face of the bottom plate 7, the supporting plates 9 are arranged on the hydraulic jacks 8, and the V-shaped supports 10 are arranged on the upper end face of the supporting plates 9. The number of the small wheels 6 is 4, the number of the hydraulic jacks 8 is 4, the number of the V-shaped supports 10 is 2, the V-shaped angle of each V-shaped support 10 is 90 degrees, and rolling bearings 11 are mounted on two side end faces of each V-shaped support 10.

During assembly and installation, a rotating rod 5 is welded on a non-assembly section of the roller head 3, and the roller head 3 is placed on a V-shaped bracket 10 of an assembly trolley. The central line of the roller is ensured to be in a horizontal position. And marking lines on the assembly part of the roller head 3 according to the drawing requirements, and marking position lines for assembly to the size.

The four hydraulic jacks 8 are adjusted to ensure that the roller head 3 is axially horizontal, and in the adjusting process, the leveling rod is placed on the roller head 3 to ensure that the height of the roller head 3 is consistent with the height of the assembling hole 2 of the roller neck 1.

The roll neck 1 is heated by manual movement of propane flame, and the size of the assembly hole 2 is measured at any time. After the size of the assembly hole 2 meets the assembly requirement, the trolley is pushed to enable the thread part of the roller head 3 to be in thread contact with the thread part of the assembly hole 2, the rotating rod 5 is rotated to enable the roller head 3 to be screwed into the assembly hole 2, the roller head is screwed tightly, the assembly is completed after the roller head reaches an assembly position line, and after the rotating rod 5 is removed through flame heating, subsequent processing is carried out.

The device is convenient to operate, can be suitable for assembling the roller heads of the rollers with different roller diameters, ensures the centering quality, has high assembling precision and improves the assembling quality. By adopting the device to assemble the roller head, the occupied time of the crown block is reduced, and the labor is reduced. And the hydraulic jack is adopted to support and other parts, so that the universality is strong and the manufacture is easy.

Claims

1. The roller head assembling trolley is characterized by comprising small wheels (6), a bottom plate (7), hydraulic jacks (8), supporting plates (9) and V-shaped supports (10), wherein the hydraulic jacks (8) are arranged on the upper end face of the bottom plate (7), the small wheels (6) are arranged on the lower end face of the bottom plate (7), the supporting plates (9) are arranged on the hydraulic jacks (8), and the V-shaped supports (10) are arranged on the upper end face of the supporting plates (9).

2. The roll-head assembly trolley according to claim 1, characterized in that the number of the small wheels (6) is 3-6.

3. The roll head assembly trolley according to claim 1, wherein the number of the hydraulic jacks (8) is 3-6.

4. The roll-head assembly trolley according to claim 1, characterized in that the number of the V-shaped supports (10) is 2-4.

5. The roll bit assembly carriage as claimed in claim 1, characterized in that the V-shaped angle of the V-shaped bracket (10) is 60-100 degrees.

6. The roll head assembly trolley according to claim 1, wherein rolling bearings (11) are mounted on two side end faces of the V-shaped bracket (10).