CN210916201U

CN210916201U - Lightweight bracket rotating shaft

Info

Publication number: CN210916201U
Application number: CN201922010288.1U
Authority: CN
Inventors: 郭亮; 王伟; 钦明
Original assignee: YANGZHOU METALLURGICAL MACHINERY CO Ltd
Current assignee: YANGZHOU METALLURGICAL MACHINERY CO Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-07-03
Anticipated expiration: 2029-11-20

Abstract

Lightweight trailing arm pivot. Relate to dress steel machine equipment technical field, especially relate to and carry out lightweight improvement to loading steel machine lifting mechanism's trailing arm pivot. The lightweight bracket arm rotating shaft is light in weight, low in material consumption and capable of meeting normal bearing capacity and working precision. Comprises shaft necks at two ends, and a bearing is movably connected outside the shaft necks; the shaft head pipe is connected to the two ends of the middle pipe, the outer end of the shaft head pipe is connected with a shaft head, and the outer end of the shaft head is the shaft neck. The middle pipe is connected with the shaft head pipe through a flange, and the middle pipe and the shaft head pipe are coaxial. The utility model discloses greatly reduced investment cost, also reduced the moment of torsion that bears bearing and transmission when dress steel machine self subtracts heavy moreover, improved the life of vulnerable part.

Description

Lightweight bracket rotating shaft

Technical Field

The utility model relates to a dress tapping machine equipment technical field especially relates to and carries out lightweight improvement to the trailing arm pivot of elevating system in the dress tapping machine.

Background

At present, both domestic and foreign equipment for feeding steel billets into and out of a heating furnace adopt a push rod type or a lifting type, and in the process of heating the steel billets, a steel loading and discharging machine is an auxiliary machine with the highest use frequency in auxiliary equipment of the heating furnace. In the actual operation process, when the steel billet is conveyed to the position of the steel loading machine from the roller way in front of the furnace, the steel loading and discharging machine sends the steel billet into the heating furnace for heating, and after the heating furnace reaches the preset temperature, the steel loading and discharging machine is taken out from the heating furnace and placed on the conveying roller way.

The existing loading and discharging machine adopts a push rod type or a lifting type, and a main (supporting arm) rotating shaft of a lifting mechanism of the existing loading and discharging machine is a solid shaft, so that the existing loading and discharging machine is large in mass and high in heat storage; this is equivalent to let "people carry dozens of jin of iron gloves to work", can't work after reaching certain fatigue degree. This design, while achieving load bearing capability, consumes considerable raw material and manufacturing resources.

Disclosure of Invention

The utility model provides a to above problem, it is light to provide a quality, and material consumption is few, and can satisfy the lightweight trailing arm pivot of normal bearing capacity and work precision.

The technical scheme of the utility model is that: comprises shaft necks at two ends, and a bearing is movably connected outside the shaft necks; the shaft head pipe is connected to the two ends of the middle pipe, the outer end of the shaft head pipe is connected with a shaft head, and the outer end of the shaft head is the shaft neck.

The middle pipe is connected with the shaft head pipe through a flange, and the middle pipe and the shaft head pipe are coaxial.

The flange connection is as follows: the first flange is fixedly connected with a pipe orifice of the middle pipe, the second flange is fixedly connected with a pipe orifice of the shaft head pipe towards the direction of the middle pipe, and the first flange is fixedly connected with the second flange through bolts; an adjusting gasket is arranged between the first flange and the second flange.

The shaft head comprises a shaft rod facing the direction of the shaft head pipe, and the outer diameter of the shaft rod is smaller than the inner diameter of the shaft head pipe; the shaft lever extends into the shaft head pipe, a plurality of support rings are fixedly arranged outside the shaft lever, and the outer circles of the support rings are fixedly connected with the inner wall of the shaft head pipe; the shaft head and the shaft head pipe are coaxial.

And after the shaft lever extends into the shaft head pipe, the shaft lever continues to extend into the middle pipe, and the excircle of the support ring is fixedly connected with the inner wall of the middle pipe.

And a sleeve is fixedly arranged outside the middle pipe.

The bearing comprises a copper sleeve and a gland, the copper sleeve movably supports the excircle of the journal, and the gland is arranged on the copper sleeve.

The root of the journal is provided with a step I for limiting the axial position of the bearing and a step II for limiting the axial position of the outermost end support ring.

The utility model discloses the combination attaches together the operating characteristic who uses the transmission moment of torsion as the owner of steel machine trailing arm pivot, utilizes the integrated configuration of spindle nose, high strength hollow steel pipe, support ring, flange and intermediate pipe to replace prior art's solid axle, recycles the bearing strength that strict welding requirement reaches the design, subtracts heavy 30% under equal bearing capacity, has both reached lightweight purpose, has reduced the input of raw and other materials again. Meanwhile, after the lightweight design is adopted, the overall product precision of the supporting arm rotating shaft is guaranteed by using a reasonable structure. The utility model discloses greatly reduced investment cost, also reduced the moment of torsion that bears bearing and transmission when dress steel machine self subtracts heavy moreover, improved the life of vulnerable part.

Drawings

Figure 1 is a schematic structural view of the present invention,

figure 2 is a top view of figure 1,

FIG. 3 is a schematic structural view of the middle shaft body of the present invention,

figure 4 is a schematic structural diagram of the middle shaft head of the utility model,

FIG. 5 is a schematic view of the operation of the present invention;

1 is a shaft head, 11 is a shaft neck, 12 is a shaft rod, 13 is a step I, 14 is a step II, 2 is a shaft head pipe, 3 is a middle pipe, 31 is a sleeve, 41 is a flange I, 42 is a flange II, 43 is an adjusting gasket, 5 is a support ring, 6 is a copper sleeve, 7 is a gland,

10 is a bracket arm, 20 is a crank arm, and 30 is a driving cylinder.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the present application will be clearly and completely described below with reference to fig. 1 to 5.

The lightweight bracket arm rotating shaft comprises shaft necks 11 at two ends, and bearings are movably connected outside the shaft necks 11; the lightweight trailing arm rotating shaft further comprises a middle pipe 3, two ends of the middle pipe 3 are respectively connected with a shaft head pipe 2, the outer end of the shaft head pipe 2 is further connected with a shaft head 1, and the outer end of the shaft head 1 is the shaft neck 11.

The middle pipe 3 is connected with the shaft head pipe 2 by a flange, and the middle pipe 3 and the shaft head pipe 2 are coaxial.

The flange connection is as follows: the flange I41 is fixedly connected with a pipe orifice of the middle pipe 3, the flange II 42 is fixedly connected with a pipe orifice of the shaft head pipe 2 facing the direction of the middle pipe 3, and the flange I41 is fixedly connected with the flange II 42 through bolts; an adjusting gasket 43 is arranged between the first flange 41 and the second flange 42, and the adjusting gasket 43 is made of cold-rolled steel plates.

The shaft head 1 comprises a shaft rod 12 facing the direction of the shaft head pipe 2, and the outer diameter of the shaft rod 12 is smaller than the inner diameter of the shaft head pipe 2; the shaft lever 12 extends into the shaft head pipe 2, a plurality of support rings 5 are fixedly arranged outside the shaft lever 12, and the excircle of each support ring 5 arranged on the shaft lever 12 is fixedly connected with the inner wall of the shaft head pipe 2; the shaft head 1 and the shaft head pipe 2 are coaxial.

After the shaft lever 12 extends into the shaft head pipe 2, the shaft lever continues to extend into the middle pipe 3, and the excircle of the support ring 5 arranged on the shaft lever 12 is fixedly connected with the inner wall extending into the middle pipe 3.

The outer part of the intermediate pipe 3 is also fixedly provided with a sleeve 31. The sleeve 31 can protect the intermediate pipe 3 and increase the bending resistance of the intermediate pipe 3.

The bearing comprises a copper bush 6 and a gland 7, wherein the copper bush 6 movably supports the excircle of a shaft neck 11, and the gland 7 is arranged on the copper bush 6. The gland 7 is used for axially positioning the bearing outer ring, ensuring sufficient centering precision, ensuring the normal working condition of the bearing and being also used for bearing certain torque or torque.

A first step 13 for limiting the axial position of the bearing and a second step 14 for limiting the axial position of the outermost support ring are arranged at the root of the journal 11. The second step 14 is fixedly connected with the support ring 5 on the inner wall of the opening of the shaft head pipe 12, and the diameter of the first step 13 is larger than the inner diameter of the bearing, so that the bearing is prevented from moving in an axial direction when being installed at a shaft diameter position. The second step 14 has the function of positioning the shaft head pipe 2, and the first step 13 and the second step 14 are different in height, so that the movement of parts on the shaft head 1 in the axial direction can be limited, the mounted parts can be prevented from sliding in the working process, and the influence of axial pressure generated by some parts in the working process on other parts can be reduced.

Fig. 5 is a schematic view of the installation operation of the lifting device of the loading and discharging machine with the lightweight bracket arm rotating shaft of the present invention, and the operation principle is that the driving cylinder 30 drives the crank arm 20 to swing up and down to drive the lightweight bracket arm rotating shaft of the present invention to make the bracket arm 10 move up and down to complete the lifting operation.

The working process of loading the steel billet into the furnace and discharging the steel billet from the furnace by the steel loading machine is as follows: when the loading and discharging machine runs from the initial position to the heating furnace direction (forward direction) to take out the steel billet, the loading and discharging machine lifting device is positioned at the lower position, at the moment, the loading and discharging rod driving mechanism runs to insert the loading and discharging rod under the plate blank, then the lifting device of the loading and discharging machine is lifted to the upper position, the loading and discharging rod supports the slab, the bottom surface of the slab is higher than the surface of a sliding rail in the furnace and the surface of a roller way behind the furnace, then the loading and discharging rod driving mechanism drives the loading and discharging rod to move forward, the steel billet is sent into a heating furnace to be heated, after reaching a certain temperature, the loading and discharging rod driving mechanism drives the loading and discharging rod to retreat, and finally the loading and discharging machine lifting device descends to a lower position to enable the slab to fall on the surface of a feeding roller channel behind the furnace to finish the discharging work of the slab, at the moment, the loading and discharging machine is recovered to a standby working state, and after the temperature of the steel slab reaches a preset temperature in the heating furnace, and the steel billet is taken out of the heating furnace by the loading steel machine according to the same working content and then is placed on a conveying roller way.

Claims

1. Lightweight trailing arm pivot, including the axle journal at both ends, the outer swing joint of axle journal has the bearing, its characterized in that still includes intermediate tube the both ends of intermediate tube respectively are connected with the axle head pipe the outer end of axle head pipe still is connected with the spindle nose, the outer end of spindle nose does the axle journal.

2. The lightweight corbel shaft according to claim 1, wherein the intermediate tube is flanged to the stub shaft tube and is concentric with the stub shaft tube.

3. The lightweight trailing arm shaft of claim 2, wherein the flange connection is: the first flange is fixedly connected with a pipe orifice of the middle pipe, the second flange is fixedly connected with a pipe orifice of the shaft head pipe towards the direction of the middle pipe, and the first flange is fixedly connected with the second flange through bolts; and an adjusting gasket is arranged between the first flange and the second flange.

4. The lightweight trailing arm axle of claim 1 wherein the stub shaft includes an axle oriented in the direction of the stub shaft tube, the axle having an outer diameter less than the inner diameter of the stub shaft tube; the shaft lever extends into the shaft head pipe, a plurality of support rings are fixedly arranged outside the shaft lever, and the outer circles of the support rings are fixedly connected with the inner wall of the shaft head pipe; the shaft head and the shaft head pipe are coaxial.

5. The lightweight trailing arm shaft according to claim 4, wherein the shaft rod continues to extend into the intermediate tube after extending into the shaft head tube, and the outer circle of the support ring is fixedly connected to the inner wall of the intermediate tube.

6. The lightweight bracket arm rotating shaft according to claim 1, wherein a sleeve is further fixedly provided outside the intermediate pipe.

7. The lightweight corbel shaft according to claim 1, wherein the bearing comprises a copper sleeve and a gland, the copper sleeve movably supports an outer circle of the journal, and the gland is disposed on the copper sleeve.

8. The lightweight corbel shaft according to claim 1, wherein the root of the journal is provided with a first step for limiting the axial position of the bearing and a second step for limiting the axial position of the outermost support ring.