CN217393372U

CN217393372U - Column type rotating cantilever beam bracket

Info

Publication number: CN217393372U
Application number: CN202220271098.4U
Authority: CN
Inventors: 计章权; 陈斌辉; 夏培根; 裴敏男
Original assignee: Zhejiang Jiuli Hi Tech Metals Co Ltd
Current assignee: Zhejiang Jiuli Hi Tech Metals Co Ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-09-09
Anticipated expiration: 2032-02-10

Abstract

The utility model belongs to the technical field of steel pipe pre-straightening equipment, in particular to a column type rotating cantilever beam bracket, which comprises a base, a vertical shaft, a fork arm, a short shaft and a jacking; the base is connected with a four-column hydraulic oil press, and the vertical shaft is rotatably connected with the base; one end of the fork arm is connected with the vertical shaft, and the other end of the fork arm is connected with the short shaft; one end of the short shaft, which is far away from the fork arm, is rotatably connected with the jacking; the jacking is used for driving an upper die for pre-straightening the steel pipe to be connected with a four-column hydraulic oil press. The utility model discloses an increase a vertical axis formula rotatory cantilever beam on four post hydraulic oil press edges, add a bracket platform, utilize balanced support and rotation principle, make things convenient for the operative employee to go up the mould can be balanced put on the bracket, the manual work can be laborsaving will go up the mould and push down four post hydraulic oil press draw-in groove positions, find suitable draw-in groove position and screw up the screw, operate like this both convenient high efficiency, save the remodelling time greatly, the security of the remodeling has also been ensured.

Description

Column type rotating cantilever beam bracket

Technical Field

The utility model belongs to the technical field of the steel pipe is straightening equipment in advance, concretely relates to rotatory cantilever beam bracket of column.

Background

In the production process of the seamless stainless steel tube, straightening and heat treatment are processes which must be carried out in the production process of the seamless stainless steel tube, and in the heat treatment process, the bent tube cannot easily enter a feeding device of a straightening machine because the tube can be bent in the rapid cooling process, so that the bent tube needs to be pre-straightened. The method of the pre-straightening treatment is that a four-column hydraulic oil press is used for straightening the annealed bent pipe. The hydraulic oil press is used for straightening the stainless steel pipe and needs to use 3 dies, namely 1 upper die and 2 lower dies. The whole process of the seamless stainless steel pipe pre-straightening comprises the steps that a long lathe bed is additionally arranged at the bottom of a four-column hydraulic oil press, a groove is formed in the upper surface of the lathe bed, 2 lower dies can be placed on the upper portion of the lathe bed, a clamping groove is formed in the bottom plate of an oil cylinder of the four-column hydraulic oil press, 1 upper die is buckled through the clamping groove, and the pipe is subjected to inching straightening treatment by utilizing a 3-point line. The model of this 3 moulds need be changed to the retooling at every turn, and the mould is not of uniform size and weight ratio is heavier, changes the bed die and we only need hang the mould to bed seat scratch groove on, but when changing the mould, need carry out the handling with the driving. The upper die is clamped firstly, then the crane is loosened, and the die is held by manpower and pushed inwards. Very dangerous easily causes the incident, spends more time moreover, goes up mould weight simultaneously greatly, and the handling has danger.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem and providing a column type rotating cantilever beam bracket.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

a column type rotary cantilever beam bracket comprises a base, a vertical shaft, a fork arm, a short shaft and a jacking; the base is connected with a four-column hydraulic oil press, and the vertical shaft is rotatably connected with the base; one end of the fork arm is connected with the vertical shaft, and the other end of the fork arm is connected with the short shaft; one end of the short shaft far away from the fork arm is rotatably connected with the jacking; the jacking is used for driving an upper die for pre-straightening the steel pipe to be connected with the four-column hydraulic oil press.

Furthermore, the base comprises a steel plate and a bearing sleeve, one end of the steel plate is welded with the bottom of the four-column hydraulic oil press, and the other end of the steel plate is connected with the bearing sleeve; the bearing sleeve is sleeved outside the vertical shaft.

Furthermore, a first one-way thrust bearing is sleeved outside the vertical shaft, a first mounting groove is formed in the top of the bearing sleeve, and the first one-way thrust bearing is located in the first mounting groove; the first one-way thrust bearing is simultaneously positioned between the inner wall of the first mounting groove and the outer wall of the vertical shaft.

Furthermore, a first gland is arranged at an opening at the top end of the first mounting groove, and the first gland is sleeved outside the vertical shaft.

Furthermore, one end of the vertical shaft, which is far away from the bearing sleeve, is vertically connected with the fork arm through a pin shaft;

furthermore, one end of the fork arm far away from the vertical shaft is vertically connected with the short shaft.

Further, the jacking comprises a jacking sleeve and a top plate; the top sleeve is sleeved outside the short shaft, and the top plate is sleeved on the top of the top sleeve.

Furthermore, a second gland is arranged at the opening end of the top sleeve, which is far away from the top plate; the second gland is sleeved outside the short shaft and is connected with the top sleeve through a screw.

Furthermore, a second one-way thrust bearing is sleeved outside the short shaft, a second mounting groove is formed in the top sleeve, and the second one-way thrust bearing is located in the second mounting groove; the second one-way thrust shaft is simultaneously positioned between the outer wall of the short shaft and the inner wall of the top sleeve.

Furthermore, one end of the short shaft extending out of the top sleeve is sleeved with a shaft clamp spring.

Compared with the prior art, the utility model has the beneficial technical effects that:

the utility model discloses an increase a vertical axis formula rotatory cantilever beam on four post hydraulic oil press edges, add a bracket platform, through rotating the principle, make things convenient for the operative employee to go up that the mould can be balanced put on the bracket, the manual work can be laborsaving will go up the mould and push down four post hydraulic oil press draw-in groove positions, find suitable draw-in groove position and screw up the screw, operate like this both convenient high efficiency, save the remodelling time greatly, also ensured the security of remodelling.

Drawings

FIG. 1 is a view showing an overall configuration of the present embodiment;

FIG. 2 is a view showing the structure of the base of the present embodiment;

fig. 3 is a top-supporting structure diagram of the present embodiment.

In the figure, 1 base, 2 steel plates, 3 bearing sleeves, 4 vertical shafts, 5 short shafts, 6 jacking supports, 7 jacking sleeves, 8 top plates, 9 first one-way thrust bearings, 10 first pressing covers, 11 pin shafts, 12 second pressing covers, 13 second one-way thrust bearings, 14 shaft snap springs and 15 fork arms.

Detailed Description

The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.

As shown in fig. 1-3, the present embodiment is a column-type rotating cantilever bracket, which comprises a base 1, a vertical shaft 4, a yoke 15, a short shaft 5 and a top support 6. The base 1 is connected with a four-column hydraulic oil press, and the vertical shaft 4 is rotatably connected with the base 1. One end of the yoke 15 is connected to the vertical shaft 4 and the other end is connected to the stub shaft 5. The end of the short shaft 5 far away from the fork arm 15 is rotatably connected with the jacking 6. The jacking 6 is used for driving an upper die for pre-straightening the steel pipe to be connected with a four-column hydraulic oil press. When the upper die is used in the embodiment, the upper die is placed on the jacking 6, and the fork arm 15, the short shaft 5, the jacking 6 and the upper die are driven to integrally rotate when the vertical shaft 4 rotates. Meanwhile, the jacking 6 is independently rotated, the jacking 6 rotates to drive the upper die to rotate, the upper die is conveyed to the clamping groove position at the bottom plate of the oil cylinder of the four-column hydraulic oil press, and the upper die is fixed on the four-column hydraulic oil press. The base 1, the vertical shaft 4, the fork arm 15 and the short shaft 5 can form a vertical shaft type rotating cantilever beam of the embodiment, and the jacking 6 forms a bracket platform of the embodiment. Therefore, in the embodiment, the vertical shaft type rotating cantilever beam is additionally arranged on the edge of the four-column hydraulic oil press, the bracket platform is additionally arranged, the rotation principle is utilized, an operator can conveniently place the upper die on the bracket, the upper die can be manually pushed to the clamping groove position of the four-column hydraulic oil press in a labor-saving manner, the appropriate clamping groove position is found, the screw is screwed to fix the upper die, the operation is convenient, fast and efficient, the die changing time is greatly saved, and the die changing safety is also ensured.

The base 1 of this embodiment includes steel sheet 2 and bearing housing 3, and the bottom welding of the one end of steel sheet 2 and four post hydraulic oil presses, the other end and bearing housing 3 are connected. The bearing sleeve 3 is sleeved outside the vertical shaft 4. The steel plate 2 is made of Q235A. The vertical shaft 4 is also sleeved with a first one-way thrust bearing 9, the top of the bearing sleeve 3 is provided with a first mounting groove, and the first one-way thrust bearing 9 is positioned in the mounting groove. The first one-way thrust bearing 9 is positioned between the inner wall of the first mounting groove and the outer wall of the vertical shaft 4. The first one-way thrust bearing 9 facilitates rotation of the vertical shaft 4. A first gland 10 is arranged at an opening at the top end of the first mounting groove, and the vertical shaft 4 is sleeved with the first gland 10. The vertical shaft 4 is made of high-quality 45 # steel, and is subjected to quenching and tempering, the hardness is controlled to be HB 212-225, and deformation is prevented.

In the embodiment, the end of the vertical shaft 4 far away from the bearing sleeve 3 is vertically connected with the fork arm 15 through the pin shaft 11. The end of the yoke 15 remote from the vertical shaft 4 is perpendicularly connected to the stub shaft 5. The minor axis 5 is parallel to the vertical axis 4. The rotation of the vertical shaft 4 drives the fork arm 15 and the short shaft 5 to integrally rotate.

The top holder 6 of the present embodiment includes a top sleeve 7 and a top plate 8. The top sleeve 7 is sleeved outside the short shaft 5, and the top plate 8 is sleeved on the top of the top sleeve 7. The top plate 8 is made of high-quality 45 # steel, and is subjected to quenching and tempering, the hardness is controlled to be HB 212-225, deformation is prevented, and a certain weight can be borne. The opening end of the top sleeve 7 far away from the top plate 8 is provided with a second gland 12. The second gland 12 is sleeved outside the short shaft 5 and connected with the top sleeve 7 through a screw. The short shaft 5 is also sleeved with a second one-way thrust bearing 13. In order to install the second one-way thrust bearing 13, a second installation groove is formed in the top sleeve 7, and the second one-way thrust bearing 13 is located in the second installation groove. The second one-way thrust shaft is simultaneously positioned between the outer wall of the short shaft 5 and the inner wall of the top sleeve 7. The second one-way thrust bearing 13 facilitates rotation of the stub shaft 5. In order to fix the short shaft 5 and the top sleeve 7 conveniently, one end of the short shaft 5, which extends out of the top sleeve 7, is sleeved with a shaft clamp spring 14.

The installation process of this embodiment is: one side of the base 1 is fixed with a four-column hydraulic oil press through electric welding, and the other side is welded with an upper bearing sleeve 3 through electric welding; a vertical shaft 4 with the similar height of a four-column hydraulic oil press is arranged in the bearing sleeve 3, and a first one-way thrust bearing 9 is arranged in the bearing sleeve 3, so that the rotation is facilitated; a fork arm 15 is connected to the top of the vertical shaft 4 through a pin shaft 11, a short shaft 5 is connected to the tail end of the fork arm 15 through electric welding, a jacking support 6 of the bracket is connected to the top of the short shaft 5 through six screws, and a second one-way thrust bearing 13 is also installed at the connecting position of the short shaft 5 and the jacking support 6.

The working principle of the embodiment is as follows: an upper die for pre-straightening the seamless stainless steel pipe is placed on a top plate 8 of a jacking support 6, the upper die is conveyed to a clamping groove at the bottom plate of a four-column hydraulic oil press oil cylinder through rotation of a vertical shaft 5 and rotation of the jacking support 6, and the upper die is fixed through screws. Namely, the replacement of the upper mold is completed.

The original mold change measurement data was typically 20 minutes. By using the embodiment, the field measurement of the tool and the die replacement can be shortened by 10 minutes compared with the original tool and die replacement, and the die replacement efficiency is greatly improved.

The embodiments of the present invention have been described in detail, and those skilled in the art can easily understand that there are various changes in the embodiments according to the idea of the present invention, and such changes should be considered as the protection scope of the present invention.

Claims

1. The utility model provides a rotatory cantilever beam bracket of column which characterized in that:

comprises a base, a vertical shaft, a fork arm, a short shaft and a jacking;

the base is connected with a four-column hydraulic oil press, and the vertical shaft is rotatably connected with the base; one end of the fork arm is connected with the vertical shaft, and the other end of the fork arm is connected with the short shaft; one end of the short shaft, which is far away from the fork arm, is rotatably connected with the jacking; the jacking is used for driving an upper die for pre-straightening the steel pipe to be connected with the four-column hydraulic oil press.

2. The column swivel cantilever beam bracket of claim 1, wherein: the base comprises a steel plate and a bearing sleeve, one end of the steel plate is welded with the bottom of the four-column hydraulic oil press, and the other end of the steel plate is connected with the bearing sleeve; the bearing sleeve is sleeved outside the vertical shaft.

3. The column swivel cantilever bracket of claim 2, wherein: a first one-way thrust bearing is sleeved outside the vertical shaft, a first mounting groove is formed in the top of the bearing sleeve, and the first one-way thrust bearing is located in the first mounting groove; the first one-way thrust bearing is simultaneously positioned between the inner wall of the first mounting groove and the outer wall of the vertical shaft.

4. The column swivel cantilever bracket of claim 3, wherein: a first gland is arranged at an opening at the top end of the first mounting groove and sleeved outside the vertical shaft.

5. The column swivel cantilever bracket of claim 2, wherein: one end of the vertical shaft, which is far away from the bearing sleeve, is vertically connected with the fork arm through a pin shaft.

6. The column swivel cantilever bracket of claim 5, wherein: one end of the fork arm far away from the vertical shaft is vertically connected with the short shaft.

7. The column swivel cantilever bracket of claim 1, wherein: the jacking comprises a jacking sleeve and a top plate; the top sleeve is sleeved outside the short shaft, and the top plate is sleeved on the top of the top sleeve.

8. The column swivel cantilever bracket of claim 7, wherein: a second gland is arranged at the opening end of the top sleeve far away from the top plate; the second gland is sleeved outside the short shaft and is connected with the top sleeve through a screw.

9. The column rotating cantilever bracket of claim 8, wherein: a second one-way thrust bearing is sleeved outside the short shaft, a second mounting groove is formed in the top sleeve, and the second one-way thrust bearing is located in the second mounting groove; the second one-way thrust shaft is simultaneously positioned between the outer wall of the short shaft and the inner wall of the top sleeve.

10. The column swivel cantilever bracket of claim 9, wherein: one end of the short shaft extending out of the top sleeve is sleeved with a shaft clamp spring.