CN218252229U

CN218252229U - Straightening device for reinforcing ribs on back of high-phosphorus brake shoe for railway vehicle

Info

Publication number: CN218252229U
Application number: CN202121004759.9U
Authority: CN
Inventors: 黄世华; 曾文祥; 顾铁军; 曾能忠
Original assignee: Longchang Huasheng Railway Accessories Technology Co ltd
Current assignee: Longchang Huaxing Railway Parts Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2023-01-10
Anticipated expiration: 2031-05-12

Abstract

The utility model discloses a straightening device for reinforcing ribs on a high-phosphorus brake shoe back of a railway vehicle, which comprises a group of traction wheels, a group of feeding wheels and a rotary drum, wherein both ends of the rotary drum are fixedly connected with a rotary shaft, a bearing and a bearing seat are arranged outside the rotary shaft, and a transmission device is connected on one of the rotary shafts; the two rotating shafts are provided with axial through holes; a plurality of rolling bearings are arranged in the rotary drum along the axis of the rotary drum, a straightening die is arranged in a bearing inner ring of each rolling bearing, each straightening die is provided with an axial reducing hole, the inner diameter of each reducing hole is gradually reduced from two ends to the middle, the axes of the reducing holes of two adjacent straightening dies are arranged in a radial staggered manner, and the axes of the reducing holes of all the straightening dies are arranged in a corrugated manner in the axial direction; the utility model discloses not only have the stable advantage of product straightness accuracy to avoid product surface fish tail, and improve mould life.

Description

Straightening device for reinforcing ribs on back of high-phosphorus brake shoe for railway vehicle

Technical Field

The utility model relates to a straightening device of round steel, especially be used for the straightening device of strengthening rib on the high phosphorus brake shoe tile back of the body of rail vehicle.

Background

The reinforcing rib on the high-phosphorus brake shoe back for the railway vehicle is an important component of the high-phosphorus brake shoe back, and mainly increases the strength of the high-phosphorus brake shoe back for the railway vehicle, plays a role of chilling block during pouring, and reduces the defects of looseness, pores and the like in a high-phosphorus cast iron friction material; the strengthening rib is made through the optical disc strip, the curvature of the optical disc strip is large, the straightening treatment is needed, multiple groups of compression rollers are mostly adopted in the existing straightening device, the optical disc strip passes through the multiple groups of compression rollers, and the multiple groups of compression rollers can feed and play a role in straightening; however, the straightness of the device after straightening is not stable enough due to the straightening mode, and the hardness of the optical disc strip is high, so that the optical disc strip is in sliding friction with the compression roller, the surface of the optical disc strip is scratched seriously, and the service life of the tool is shortened.

Disclosure of Invention

The utility model aims at the above-mentioned not enough that prior art exists, provide a straightener of strengthening rib on the back of a shoe of high phosphorus brake shoe for rail vehicle, it not only has the stable advantage of product straightness accuracy to avoid product surface fish tail, and improve mould life.

In order to achieve the above purpose, the straightening device for strengthening ribs on the back of a high-phosphorus brake shoe for railway vehicles comprises a group of traction wheels, a group of feeding wheels and a rotary drum arranged between the traction wheel group and the feeding wheel group, wherein both ends of the rotary drum are fixedly connected with a rotary shaft, a bearing and a bearing seat are arranged outside the rotary shaft, and a transmission device is connected to one of the rotary shafts; it is characterized in that the two rotating shafts are provided with axial through holes; the axial straightening device is characterized in that a plurality of rolling bearings are arranged in the rotary drum along the axial line of the rotary drum, a straightening die is installed in a bearing inner ring of each rolling bearing, each straightening die is provided with an axial reducing hole, the inner diameter of each reducing hole is gradually reduced from two ends to the middle, the axial centers of the reducing holes of two adjacent straightening dies are arranged in a radial staggered mode, and the axial centers of the reducing holes of all the straightening dies are arranged in a corrugated mode in the axial direction.

When in use, the optical disk strip passes through the traction wheel set, the two rotating shafts, the plurality of straightening dies and the feeding wheel set; the rotary drum rotates, each straightening die rotates to form a spiral line-shaped straightening die cavity, meanwhile, the optical disc strip is fed forwards and sequentially passes through each straightening die, the bent optical disc strip linearly advances, the surface of the optical disc strip is in a spiral line shape and is extruded by each straightening die, a better straightening effect is achieved, the product straightness is stable, no sliding friction exists between the straightening die and the optical disc strip under the action of the rolling bearing, only relative rotation is achieved, the surface of the product can be prevented from being scratched, and the service life of the die is prolonged;

as a further improvement of the utility model, a plurality of adjusting seats are arranged in the rotary drum, each adjusting seat is fixedly arranged in the rotary drum through the fastening bolts on the two opposite side walls of the rotary drum, and each rolling bearing is fixedly arranged in the respective adjusting seat; the eccentricity of each straightening die relative to the optical disk strip can be adjusted, and the method is suitable for optical disk strips with different curvatures;

as a further improvement of the utility model, the position with the smallest inner diameter in the middle of each reducing hole is provided with a fillet; the surface of the product can be further prevented from being scratched;

to sum up, the utility model discloses not only have the stable advantage of product straightness accuracy to avoid product surface fish tail, and improve mould life.

Drawings

Fig. 1 is a front view of an embodiment of the present invention.

Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 2, the straightening device for reinforcing ribs on the back of a high-phosphorous brake shoe for railway vehicles of the embodiment comprises a group of traction wheels 1, a group of feeding wheels 2 and a rotary drum 3 arranged between the traction wheel group 1 and the feeding wheel group 2, wherein two ends of the rotary drum 3 are fixedly welded with a rotary shaft 4, a bearing 6 and a bearing seat 7 are arranged outside the rotary shaft 4, and one rotary shaft 4 is connected with a belt pulley 8 as a transmission device; the two rotating shafts 4 are provided with axial through holes 5; five adjusting seats 9 are arranged in the rotary drum 3 along the axis of the rotary drum, each adjusting seat 9 is fixedly arranged in the rotary drum 3 through fastening bolts 10 on two opposite side walls of the rotary drum 3, a rolling bearing 11 is fixedly arranged in each adjusting seat 9, a straightening die 13 is arranged in a bearing inner ring 12 of each rolling bearing 11, a step and a ring groove are arranged on the excircle of each straightening die 13, a retainer ring 14 is arranged in the ring groove, and the bearing inner ring 12 outside the straightening die 13 is clamped between the step and the retainer ring 14; each straightening die 13 is provided with an axial reducing hole 15, the inner diameter of each reducing hole 15 is gradually reduced from two ends to the middle, and the smallest inner diameter part of the middle of each reducing hole 15 is provided with a fillet 16; the axes of the reducing holes 15 of two adjacent straightening dies 13 are arranged in a radial staggered manner, and the axes of all the reducing holes 15 are arranged in a corrugated manner in the axial direction.

When in use, the optical disc strip 17 passes through the traction wheel set 1, the two rotating shafts 4, the straightening dies 13 and the feeding wheel set 2; the rotating drum 3 is rotated through the belt pulley 8, each straightening die 13 is rotated, meanwhile, the optical disk strips 17 are fed forwards and sequentially pass through each straightening die 13, because the axes of the reducing holes 15 of two adjacent straightening dies 13 are arranged in a radial staggered manner, the axes of all the reducing holes 15 are arranged in a corrugated manner in the axial direction to form a rotating spiral-line-shaped straightening die cavity, the bent optical disk strips 17 move forwards linearly, the surfaces of the optical disk strips are extruded in a spiral line by the fillets 16 at the minimum inner diameter positions of the straightening dies 13, a better straightening effect is achieved, the straightness of the product is stable, no sliding friction exists between the straightening dies 13 and the optical disk strips 17 under the action of the rolling bearing 11, only relative rotation is achieved, no scratch is caused on the surfaces of the product due to the fillets 17, and the service life of the dies is prolonged; the eccentricity of each straightening die 13 relative to the optical disc strip 17 can be adjusted through the fastening bolts 10, and the method is suitable for optical disc strips with different curvatures.

The present invention is not limited to the above embodiments, and the belt pulley can be replaced by a chain wheel or a gear as a transmission device, and the number of the adjusting seat and the straightening mold can be changed, and they all fall into the protection scope of the present patent.

Claims

1. A straightening device for reinforcing ribs on the back of a high-phosphorus brake shoe for a railway vehicle comprises a group of traction wheels, a group of feeding wheels and a rotary drum arranged between a traction wheel group and a feeding wheel group, wherein two ends of the rotary drum are fixedly connected with rotary shafts, bearings and bearing seats are arranged outside the rotary shafts, and a transmission device is connected to one of the rotary shafts; it is characterized in that the two rotating shafts are both provided with axial through holes; the axial straightening device is characterized in that a plurality of rolling bearings are arranged in the rotary drum along the axial line of the rotary drum, a straightening die is installed in a bearing inner ring of each rolling bearing, each straightening die is provided with an axial reducing hole, the inner diameter of each reducing hole is gradually reduced from two ends to the middle, the axial centers of the reducing holes of two adjacent straightening dies are arranged in a radial staggered mode, and the axial centers of the reducing holes of all the straightening dies are arranged in a corrugated mode in the axial direction.

2. The device as claimed in claim 1, wherein the drum has a plurality of adjustment seats, each of the adjustment seats is fixed in the drum by fastening bolts on opposite side walls of the drum, and each of the rolling bearings is fixed in the respective adjustment seat.

3. The straightener for reinforcing bars on the back of a high phosphorus brake shoe for railway vehicles as claimed in claim 1 or 2, wherein the smallest inner diameter part of each of said reducing holes is provided with a round corner.