CN214184624U

CN214184624U - Main transmission shaft of rolling mill in steel rolling mill

Info

Publication number: CN214184624U
Application number: CN202023168813.1U
Authority: CN
Inventors: 吴僧
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-14
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a rolling mill final drive shaft of steel mill, including central siphon and axostylus axostyle, the equal fixed mounting in both sides of central siphon has the inserted bar, the sleeve has been cup jointed on the inserted bar, sleeve and axostylus axostyle fixed connection, the telescopic inside has been seted up and has been supplied inserted bar male slot, the screw thread blind hole has all been seted up to the top and the bottom of inserted bar, the inside threaded connection of screw thread blind hole has positioning bolt, run through on the sleeve and set up the draw-in groove that supplies the positioning bolt card to go into, telescopic outer wall is equipped with first screw thread layer and second screw thread layer, threaded connection has the screwed pipe between first screw thread layer and the second screw thread layer. The utility model relates to a transmission shaft technical field, simple structure, the installation is dismantled conveniently, has reduced the maintenance cost, has reduced the waste of resource, is favorable to the use of enterprise.

Description

Main transmission shaft of rolling mill in steel rolling mill

Technical Field

The utility model relates to a transmission shaft technical field especially relates to a rolling mill final drive shaft of steel mill.

Background

The transmission shaft is a high-speed, low-bearing rotating body, so that the dynamic balance of the transmission shaft is crucial. The dynamic balance test is carried out on a general transmission shaft before leaving a factory, and the transmission shaft is adjusted on a balancing machine. In the case of a front engine rear wheel drive vehicle, the transmission is arranged to transmit the rotation of the transmission to the shaft of the final drive, and the transmission can be provided with a plurality of joints, and the joints can be connected through universal joints.

The main transmission shaft of the rolling mill in the prior art is of an integrated structure, after deformation occurs, independent parts cannot be replaced, the main transmission shaft of the rolling mill can only be replaced integrally, maintenance cost is high, and meanwhile certain resources are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems existing in the prior art and providing a main transmission shaft of a rolling mill in a steel rolling mill.

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

the utility model provides a rolling mill final drive shaft of steel mill, includes central siphon and axostylus axostyle, the equal fixed mounting in both sides of central siphon has the inserted bar, the sleeve has been cup jointed on the inserted bar, sleeve and axostylus axostyle fixed connection, the telescopic inside slot of confession inserted bar male has been seted up, the screw thread blind hole has all been seted up to the top and the bottom of inserted bar, the inside threaded connection of screw thread blind hole has positioning bolt, run through on the sleeve and set up the draw-in groove that supplies positioning bolt card to go into, telescopic outer wall is equipped with first screw thread layer and second screw thread layer, threaded connection has the screwed pipe between first screw thread layer and the second screw thread layer.

Preferably, the outer wall of the inserted bar is provided with a plurality of teeth, and the inner wall of the slot is provided with an engaging slot matched with the teeth.

Preferably, the first thread layer and the second thread layer are both external threads, and the inner wall of the threaded pipe is provided with internal threads matched with the external threads.

Preferably, the positioning bolt is a hexagon socket head cap screw, and the positioning bolt is made of stainless steel.

Preferably, the outer surface of the threaded pipe is integrally formed with anti-slip lines, and the anti-slip lines are obliquely arranged.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the fixing device has the advantages that the fixing device can play a good fixing effect by matching the inserted rod, the sleeve, the slot, the clamping groove, the threaded blind hole and the positioning bolt, so that the inserted rod and the sleeve are more stably connected, and the inserted rod is fixed by adopting threaded connection and is more convenient to disassemble.

2. The positioning bolt can be blocked through the matching of the first thread layer, the second thread layer and the threaded pipe, the separation of the positioning bolt from the inside of the threaded blind hole in the use process is avoided, and the stability of the inserted bar and the sleeve connection is further improved.

Drawings

FIG. 1 is a schematic view of a front sectional structure of a main transmission shaft of a rolling mill in a steel rolling mill according to the present invention;

FIG. 2 is a schematic structural view of an insert rod in a main transmission shaft of a rolling mill in a steel rolling mill according to the present invention;

fig. 3 is an enlarged view of a structure at a in fig. 1.

In the figure: 1. an axle tube; 2. a shaft lever; 3. inserting a rod; 4. a sleeve; 5. teeth; 6. a slot; 7. a card slot; 8. a threaded blind hole; 9. positioning the bolt; 10. a first thread layer; 11. a second threaded layer; 12. a threaded pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a rolling mill main drive shaft of steel mill, including central siphon 1 and axostylus axostyle 2, the equal fixed mounting in both sides of central siphon 1 has inserted bar 3, sleeve 4 has been cup jointed on inserted bar 3, sleeve 4 and axostylus axostyle 2 fixed connection, confession inserted bar 3 male slot 6 has been seted up to the inside of sleeve 4, threaded blind hole 8 has all been seted up to the top and the bottom of inserted bar 3, threaded blind hole 8's internal thread is connected with positioning bolt 9, run through on the sleeve 4 and set up the draw-in groove 7 that supplies positioning bolt 9 card to go into, sleeve 4's outer wall is equipped with first thread layer 10 and second thread layer 11, threaded connection has screwed pipe 12 between first thread layer 10 and the second thread layer 11.

Wherein, be equipped with a plurality of teeth 5 on the outer wall of inserted bar 3, set up the meshing groove with 5 looks adaptations of teeth on the inner wall of slot 6, make the connection of inserted bar 3 and sleeve 4 more stable through the cooperation of teeth 5 and meshing groove.

Wherein, first thread layer 10 and second thread layer 11 are the external screw thread, are equipped with the internal thread with external screw thread looks adaptation on the inner wall of screwed pipe 12, use the connection of the screwed pipe 12 of being convenient for through the cooperation of first thread layer 10 and second thread layer 11.

Wherein, positioning bolt 9 is hexagon socket head cap screw, and positioning bolt 9 is stainless steel material, and stainless steel has fine hardness and corrosion resisting property, is favorable to prolonging positioning bolt 9's life, can avoid positioning bolt 9 the condition of corrosion to appear simultaneously.

Wherein, the surface integrated into one piece of screwed pipe 12 has anti-skidding line, and anti-skidding line sets up for the slope, has increased the frictional force of screwed pipe 12 surface through anti-skidding line, can play fine anti-skidding effect, and then has made things convenient for the rotation of screwed pipe 12.

The working principle is as follows: in the utility model, when the shaft rod 2 is damaged and needs to be replaced, firstly the threaded pipe 12 is rotated to move the threaded pipe 12 to the first threaded layer 10, then the positioning bolt 9 is leaked, then the positioning bolt 9 is screwed out from the inner part of the threaded blind hole 8, the sleeve 4 is pulled out from the inserted link 3, the disassembly of the shaft rod 2 can be completed, the structure is simple, the operation is convenient, the problem that the main transmission shaft of the rolling mill is mostly in an integrated structure in the prior art is solved, after the deformation occurs, the independent component can not be replaced, only the main transmission shaft of the rolling mill can be replaced integrally, the maintenance cost is higher, and simultaneously the waste of certain resources is also caused, the good fixing effect can be achieved by the matched use of the inserted link 3, the sleeve 4, the slot 6, the clamping groove 7, the threaded blind hole 8 and the positioning bolt 9, further the connection of the inserted link 3 and the sleeve 4 is more stable, and the threaded connection is adopted for fixation, dismantle more conveniently, can carry out the shutoff to positioning bolt 9 through the cooperation of first thread layer 10, second thread layer 11 and screwed pipe 12, avoid positioning bolt 9 to break away from the inside of screw thread blind hole 8 at the in-process that uses, further improved the stability that inserted bar 3 and sleeve 4 are connected.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A main transmission shaft of a rolling mill in a steel rolling mill comprises a shaft tube (1) and a shaft rod (2), it is characterized in that the two sides of the shaft tube (1) are both fixedly provided with inserted rods (3), the inserted bar (3) is sleeved with a sleeve (4), the sleeve (4) is fixedly connected with the shaft lever (2), the inside of the sleeve (4) is provided with a slot (6) for the insertion of the insertion rod (3), the top and the bottom of the inserted bar (3) are both provided with threaded blind holes (8), the inner thread of the threaded blind hole (8) is connected with a positioning bolt (9), a clamping groove (7) for clamping the positioning bolt (9) is arranged on the sleeve (4) in a penetrating way, the outer wall of the sleeve (4) is provided with a first thread layer (10) and a second thread layer (11), a threaded pipe (12) is connected between the first threaded layer (10) and the second threaded layer (11) in a threaded manner.

2. The main transmission shaft of a rolling mill of a steel mill according to claim 1, characterized in that a plurality of teeth (5) are provided on the outer wall of the insert rod (3), and an engagement groove adapted to the teeth (5) is provided on the inner wall of the insertion groove (6).

3. The main transmission shaft of a rolling mill of a steel mill according to claim 1, characterized in that the first thread layer (10) and the second thread layer (11) are both external threads, and the inner wall of the threaded pipe (12) is provided with internal threads adapted to the external threads.

4. A mill main drive shaft according to claim 1, characterized in that said positioning bolt (9) is a hexagon socket head cap screw, said positioning bolt (9) being of stainless steel material.

5. A mill main drive shaft according to claim 1, characterized in that the threaded pipe (12) has an outer surface integrally formed with anti-slip threads, said anti-slip threads being arranged obliquely.