CN215144342U

CN215144342U - Receiving frame device in roll forging process of oversized roll forging

Info

Publication number: CN215144342U
Application number: CN202120192089.1U
Authority: CN
Inventors: 杨勇; 张艳朝; 孙国强; 胡福荣; 陈祥龙; 李海涛
Original assignee: Beijing Research Institute of Mechanical and Electrical Technology
Current assignee: China National Machinery Institute Group Beijing Electromechanical Research Institute Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-12-14
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a receiving frame device in the roll forging process of an oversized roll forging piece, which structurally comprises a lifting guide mechanism and a driving rolling mechanism; the lifting guide mechanism comprises two guide rods and a hydraulic cylinder, and the hydraulic cylinder can react to the lifting height in time according to the motion condition of the roller forging; the rolling mechanism is by 1 fixed axle, cylinder and first way and the guide die that the second was said, leans on the bearing to rotate and drives the cylinder and rotate, and first way and second way guide die are fixed on the cylinder, rotate together with the cylinder, the utility model discloses the main significant characteristics are that roll forging to super large type roller forging realizes that automated production provides necessary auxiliary device, eliminates the backward production technology that axletree turned round roll forging in the past, realizes automated production to the axletree, avoids turning round roll forging in-process to produce folding defect, improves production efficiency greatly.

Description

Receiving frame device in roll forging process of oversized roll forging

Technical Field

The utility model relates to a material receiving frame auxiliary device of super large type roller forging roll forging process realizes through auxiliary device that large type roller forging can roll forging in succession and need not the roll forging of turning around to can make large type roller forging realize that automated production is applied to an additional device in the roll forging field.

Background

In recent years, rapid development of ships and railway transportation industries actively promotes heavy load and speed increase so as to relieve the deficiency of transportation carrying capacity. Particularly, the most important bearing part of the axle part of the rail transit vehicle bears the self weight and load of the vehicle, and also bears impact force and braking force when the train runs and stops, the stress condition is more complicated in the high-speed and heavy-load state, and the axle of the truck has more strict technical requirements in terms of safety. Therefore, in addition to fully paying attention to the raw materials and the heat treatment after forging to ensure that the technical requirements are met, the rail transit axle must be subjected to a roll forging plastic deformation process in the forming process so as to achieve the dual purposes of forming to the required shape and improving the mechanical property of the rail transit axle.

At present, the roll forging of the oversized roll forging piece is mainly a roll forging process of a rail transit axle, the process adopts four-pass turning roll forging or two-pass turning roll forging, but the process has the defects that the position of the maximum deformation position of an actual bite at the turning roll forging position is not fixed, the dislocation among different passes is easy, the roll forging piece is folded at the turning position, and the bearing capacity of the axle is reduced; the four-pass roll forging consumes long time, the roll forging with the reversed head occupies larger production space, the production mode has low operation automation degree and low labor production efficiency.

The utility model provides a problem that large-scale roller forging piece adopts the monoblock mould and saves the roll forging of turning round at the roll forging in-process to provide one between manipulator and roll forging machine and connect the work or material rest, the utility model discloses be favorable to large-scale roller forging piece automated production, play support and conveying effect at the roll forging in-process, be the accessory that the whole roll forging of roll forging piece takes shape. The production of the oversized roll forging is manual turning roll forging at present, and the roll forging process for realizing automatic production of the oversized roll forging by adding an auxiliary device is not recorded in documents at present.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a receiving frame device in the roll forging process of an oversized roll forging piece, which is characterized in that the structure comprises a lifting guide mechanism and a transmission rolling mechanism; the lifting guide mechanism comprises two guide rods and a hydraulic cylinder, and the hydraulic cylinder can react to the lifting height in time according to the motion condition of the roller forging; the transmission rolling mechanism consists of a fixed shaft, a roller and a first guide die and a second guide die, the roller is driven to rotate by the rotation of a bearing, and the first guide die and the second guide die are fixed on the roller and rotate together with the roller; the guide mechanism is characterized in that guide sleeves are arranged on two guide rods of the guide mechanism, the guide sleeves are partially submerged in the base, H4 is 135mm above the base, the total length H3 is 265mm, the two guide rods are identical in size, and the diameter d1 is 80 mm; outer diameter of roller of driving rolling mechanism

D3 is 230mm, the positioning size L6 between two times is 350mm, and the inner diameter D5 of the roller is 140 mm; bearings are arranged at two ends in the roller; the two secondary guide dies are cylindrical and are arranged on the roller; two circles of screws are connected between the first guide die and the roller, four screws are uniformly distributed in each circle, and eight screws are needed in total; two circles of screws are connected between the second guide die and the roller, four screws are uniformly distributed in each circle, and eight screws are needed in total; the shape of the first guide die cavity is the same as the theoretical size of the shape of the first roll forging die cavity, so that two thirds of the contact surface of the first roll forging is attached to the guide die cavity; the shape of the second guide die cavity is the same as the theoretical size of the shape of the second roll forging die cavity, so that one half of the contact surface of the second roll forging is attached to the guide die cavity; inner diameter of first guide die

Second guide die inner diameter

The outer diameter D1 of the first guide die and the second guide die is 315 mm; the maximum height h2 of the receiving frame from the ground is 1320 mm; the lowest height h1 of the material receiving frame is 1055mm

Drawings

FIG. 1 is a front view of a receiving rack;

fig. 2 is a side view of the receiving rack;

FIG. 3 is a front view of a first guide die;

FIG. 4 is a front view of a second guide die;

FIG. 5 is a side view of the first and second guide molds

FIG. 6 is a front view of the drum;

FIG. 7 is a front view of the stationary shaft;

FIG. 8 is a front view of a fixed axle support base;

FIG. 9 is a side view of the fixed axle support base;

FIG. 10 is a schematic view of the lowest and highest positions of the lifting of the receiving rack;

Detailed Description

The embodiment of the utility model comprises a lifting guide mechanism and a driving rolling mechanism; the lifting guide mechanism comprises two guide rods and a hydraulic cylinder, and the hydraulic cylinder can react to the lifting height in time according to the motion condition of the roller forging; the driving rolling mechanism consists of a fixed shaft, a roller and a first and a second guide dies, the roller is driven to rotate by the rotation of a bearing, and the first and the second guide dies are fixed on the roller and rotate together with the roller. Fig. 1 is a front view of the material receiving frame, wherein the reference numeral 1 is a fixed shaft, the reference numeral 2 is a first guide die, the reference numeral 3 is a second guide die, the

reference numerals

2 and 3 are fixed on a roller and roll together with the roller, and the distance L5 between the two is 650 mm; the number 4 is a roller, the number 5 is a bearing, two ends of the fixed shaft are respectively provided with one bearing, and the bearings are fixed on the fixed shaft and drive the roller to rotate together; reference number 6 indicates that the two guide bars have the same size, the diameter d1 is 80mm, and the distance between the two guide bars is L2 is 900 mm; is arranged in a guide sleeve mark 15 on a base mark 7; the reference number 14 is a hydraulic cylinder, and the lifting of the material receiving frame is mainly completed by the hydraulic cylinder; the height H1 of the base 7 is 300mm, the length L3 is 1350mm, and the width L4 is 400 mm; reference numeral 9 is a fixed bolt, and the distance L1 is 600 mm; the number 8 in fig. 2 is a supporting seat, H4 is 130mm on the supporting seat of the guide sleeve 15, and the total length H3 is 265 mm.

FIG. 3 is a front view of a first guide die with an inner diameter

Reference numeral 10 is a contact surface of the first guide die cavity and the first roll forging, and the shape of the contact surface is the same as the theoretical size of the shape of the first roll forging die cavity, so that two thirds of the contact surface of the first roll forging is attached to the guide die cavity; FIG. 4 shows the inner diameter of the second guide die

The die cavity of the die is designed to be circular, so that one half of the contact surface of the second roll forging piece is attached to the guide die cavity; reference numeral 11 is a contact surface between the second guide die cavity and the second roll forging, and the shape of the contact surface is the same as the theoretical size of the shape of the second roll forging die cavity, so that one half of the contact surface of the second roll forging is attached to the guide die cavity; the two secondary guide dies are cylindrical. Fig. 5 is a side view of a first guide die and a second guide die, and reference numeral 13 is a set screw of the guide dies, and four guide dies are uniformly arranged per one guide die.

FIG. 6 is a front view of a roller having a maximum outer diameter D3 of 230mm and an outer diameter of the roller assembled with a guide die

The inner diameter D5 of the roller is 140mm, the positioning size L6 of the first guide die and the second guide die is 350mm, and the total length L7 of the roller is 1175 mm. Fig. 7 is a front view of the fixed shaft, D9 is 110mm, 12 is threads at two ends of the fixed shaft, the length L8 between bearings is 1150mm, the distance L9 between two ends of the bearings is 1358, and the maximum length L10 of the fixed shaft is 1498 mm. Fig. 8 is a front view of a fixed shaft support seat, wherein the height H5 of the support seat is 270mm, and the length L11 of the support seat is 1325 mm. Fig. 9 is a side view of the fixed axle supporting seat, where the distance L12 between the supporting seat fixing screw holes is 190mm, the height H7 between the supporting seat bosses is 45mm, and the distance H6 between the fixed axle and the base floor is 195 mm; water with fixed axis line spaced from baseThe flat distance L13 is 200 mm.

Fig. 10 is a schematic diagram of the lowest and highest positions of the receiving rack, the lowest position h1 of the receiving rack from the ground is 1055mm, the height h2 of the receiving rack from the ground is 1320mm, and the lifting range of the receiving rack is 265 mm.

The above description is only a preferred embodiment of the present invention, and all changes made by the claims of the present invention should be considered as falling within the scope of the present invention.

Claims

1. A receiving frame device in the roll forging process of an oversized roll forging piece is characterized in that the structure of the receiving frame device comprises a lifting guide mechanism and a transmission rolling mechanism; the lifting guide mechanism comprises two guide rods and a hydraulic cylinder, and the hydraulic cylinder can react to the lifting height in time according to the motion condition of the roller forging; the driving rolling mechanism consists of a fixed shaft, a roller and a first and a second guide dies, the roller is driven to rotate by the rotation of a bearing, and the first and the second guide dies are fixed on the roller and rotate together with the roller.

2. The material receiving frame device in the roll forging process of the oversized roll forging as claimed in claim 1, wherein the guide sleeves are mounted on two guide rods of the guide mechanism, the guide sleeves are partially submerged in the base, H4 is 135mm above the base, the total length H3 is 265mm, the two guide rods are the same in size, and the diameter d1 is 80 mm.

3. The material receiving frame device in the roll forging process of the oversized roll forging piece as claimed in claim 1, wherein the outer diameter of a roller of a driving rolling mechanism

D3 is 230mm, the positioning size L6 between two times is 350mm, and the inner diameter D5 of the roller is 140 mm; and bearings are arranged at two ends in the roller.

4. The material receiving frame device in the roll forging process of the oversized roll forging piece as claimed in claim 1, wherein the two secondary guide dies are cylindrical and are arranged on a roller; two circles of screws are connected between the first guide die and the roller, four screws are uniformly distributed in each circle, and eight screws are needed in total; two circles of screws are connected between the second guide die and the roller, four screws are uniformly distributed in each circle, and eight screws are needed.

5. The material receiving frame device in the roll forging process of the oversized roll forging piece as claimed in claim 1, wherein the shape of the first guide die cavity is the same as the theoretical size of the shape of the first roll forging piece die cavity, so that two thirds of the contact surface of the first roll forging piece is attached to the guide die cavity; the shape of the second guide die cavity is the same as the theoretical size of the shape of the second roll forging die cavity, and one half of the contact surface of the second roll forging is attached to the guide die cavity.

6. The material receiving frame device in the roll forging process of the oversized roll forging piece as claimed in claim 1 or 4, wherein the inner diameter of the first guide die

Second guide die inner diameter

The outer diameter D1 of the first guide die and the second guide die is 315 mm.

7. The material receiving frame device in the roll forging process of the oversized roll forging as claimed in claim 1, wherein the maximum height h2 of the material receiving frame from the ground is 1320 mm; the lowest height h1 of the material receiving frame is 1055 mm.