Search

CN-224199733-U - Milling device for high-low joint of rail change

CN224199733UCN 224199733 UCN224199733 UCN 224199733UCN-224199733-U

Abstract

The utility model provides a rail-changing high-low joint milling device, which belongs to the technical field of railway engineering machinery and comprises a main frame and a slope adjusting mechanism arranged on the main frame, wherein the slope adjusting mechanism is used for adjusting the slope of the main frame so as to perform downhill milling operation, a rail clamping mechanism is used for clamping and positioning a rail so as to perform milling, a processing unit is used for milling a rail joint, and a guiding unit is used for guiding the processing unit to move along a downhill track so as to perform downhill milling. The cutter molding surface of the processing unit is matched with the working surface of the steel rail, the rail top and the non-working surface of the steel rail. The utility model effectively solves the problems of high labor intensity and poor precision of polishing the downhill of the new and old rails in the field, can realize the downhill transition milling operation with a sufficient range, meets the requirement of high gradient of <1 per mill, and has the advantages of high joint treatment efficiency, good quality and the like.

Inventors

  • YANG WEI
  • XU QIRUI
  • XIA FUKUN
  • LIU XUEHAI
  • WANG CHENGZHE
  • ZOU HAILONG
  • HUANG JIAYU
  • WANG YUSHI
  • SUN LIRUI

Assignees

  • 金鹰重型工程机械股份有限公司

Dates

Publication Date
20260505
Application Date
20250530

Claims (10)

  1. 1. The rail-changing high-low joint milling device is characterized by comprising a main frame (1) and a milling device arranged on the main frame (1): A slope adjusting mechanism (5) for adjusting the slope of the main frame (1) for performing a downhill milling operation; a rail clamping mechanism (4) for clamping and positioning the rail for milling; A machining unit (2) for milling the rail joints; a guiding unit (3) for guiding the movement of the processing unit (2) for down-slope milling.
  2. 2. The rail-changing high-low joint milling device according to claim 1, wherein the inclination adjusting mechanism (5) comprises a plurality of adjustable supporting leg mechanisms arranged at the lower part of the main frame (1), and the adjustable supporting leg mechanisms comprise hydraulic supporting legs (24) and servo valves for controlling the lifting and the shrinking of the hydraulic supporting legs.
  3. 3. The rail-changing high-low joint milling device according to claim 1, wherein the guide unit (3) comprises more than one guide rail (21) arranged on the main frame (1), sliding sleeves (19) connected to the guide rails (21) in a sliding mode, machining unit installation seats (10) connected to the sliding sleeves (19) and used for installing the machining units (2), and gear sliding rails used for being matched with the machining units (2), and the gear sliding rails comprise racks (6) arranged on the main frame (1) and gears (22) meshed with the racks (6) for transmission.
  4. 4. The device for milling the high-low joint of the rail change as claimed in claim 3, wherein the machining unit mounting base (10) is connected to the sliding sleeve (19) through the sliding sleeve mounting base (20).
  5. 5. The rail-changing high-low joint milling device according to claim 1, wherein the machining unit (2) comprises a guide driving element (8) arranged on a machining unit mounting seat (10) and used for driving a gear (22) to rotate so as to enable the gear (22) to reciprocate along a rack (6), a cutter (7) used for milling a steel rail, a cutter driving element (23) used for driving the cutter (7) to rotate and a vertical feeding driving element (12) used for driving the cutter (7) to vertically lift, and the cutter molding surface is matched with a steel rail working surface, a rail top and a steel rail non-working surface.
  6. 6. The rail-changing high-low joint milling device according to claim 5, wherein the guiding driving element (8), the cutter driving element (23) and the vertical feeding driving element (12) are servo motors or servo hydraulic motors.
  7. 7. The high and low joint milling device for a change rail according to claim 5, wherein the tool driving element (23) is connected to the machining unit mount (10) via a vertical feed driving element (12).
  8. 8. The milling device for the high-low joint of the rail change according to claim 5 is characterized in that the rail clamping mechanism (4) comprises a fixed rail clamping block (15) and a movable rail clamping block (16) which are matched with each other to clamp and position a steel rail; The clamping surfaces of the fixed clamping rail block (15) and the movable clamping rail block (16) are matched with the steel rail; The movable rail clamping block (16) is connected with the main frame (1) through a servo actuator servo hydraulic cylinder (18) for driving the movable rail clamping block (16) to clamp/unclamp a steel rail.
  9. 9. The milling device for the high-low joint of the rail change according to claim 1 is characterized by further comprising a control system for controlling the inclination adjusting mechanism (5), the guiding unit (3) and the processing unit (2) to mill the steel rail in a downhill mode according to the height difference of the new rail and the old rail.
  10. 10. The rail-changing high-low joint milling device according to claim 1 is characterized in that the main frame (1) is of a double-layer frame structure, each layer of frame comprises two longitudinal side beams (13) and more than one transverse side beam (14), the upper layer of frame further comprises more than one middle cross beam (17) connected between the two longitudinal side beams (13), and a plurality of longitudinal beams (131) used for connecting the upper layer of frame and the lower layer of frame are arranged between the opposite longitudinal side beams (13) on the upper layer of frame and the lower layer of frame.

Description

Milling device for high-low joint of rail change Technical Field The utility model belongs to the technical field of railway engineering machinery, and particularly relates to a rail-changing high-low joint milling device. Background In the field of high-speed railway line maintenance, according to railway line maintenance rules, when the vertical abrasion of a stock rail exceeds 6mm, the steel rail is replaced, and the welded joint of the replaced new and old rails is subjected to downhill processing. At present, the joint of the new rail and the old rail is mainly subjected to downhill processing by manually adopting a small polishing device, so that the labor intensity of operators is high, the operation efficiency is low, the downhill gradient is determined by combining experience with visual inspection, the precision is poor, and the quality is difficult to guarantee due to the fact that the personal experience and subjectivity of the operators are relied on. Disclosure of utility model The utility model aims to overcome the defects in the prior art, and provides the milling device for the high-low joint of the rail change, which has high joint treatment efficiency and good quality, and can effectively realize the purposes of reducing labor and improving quality and efficiency of polishing the high-low joint of the new and old rails on site along a slope. The technical scheme of the utility model is as follows: a milling device for a high-low joint of a rail change, including main frame and locate on the main frame: A slope adjustment mechanism for adjusting the slope of the main frame for performing a downhill milling operation; a rail clamping mechanism for clamping and positioning the rail for milling; the machining unit is used for milling the joint of the steel rail; and the guiding unit is used for guiding the machining unit to move along the downhill track so as to perform downhill milling. The inclination adjusting mechanism comprises a plurality of adjustable supporting leg mechanisms arranged at the lower part of the main frame, wherein each adjustable supporting leg mechanism comprises a hydraulic supporting leg and a servo valve for controlling the hydraulic supporting leg to lift and shrink. The guide unit comprises more than one guide rail arranged on the main frame, sliding sleeves connected to the guide rails in a sliding manner, a processing unit mounting seat connected to the sliding sleeves and used for mounting the processing unit, and a gear sliding rail matched with the processing unit, wherein the gear sliding rail comprises a rack arranged on the main frame and a gear meshed with the rack for transmission. The processing unit installation seat is connected to the sliding sleeve through the sliding sleeve installation seat. The processing unit comprises a guide driving element, a cutter driving element and a vertical feed driving element, wherein the guide driving element is arranged on a processing unit mounting seat and used for driving a gear to rotate so as to enable the gear to reciprocate along a rack, the cutter is used for milling a steel rail, the cutter driving element is used for driving the cutter to rotate, and the vertical feed driving element is used for driving the cutter to vertically lift. The cutter is a profiling cutter, and the molding surface of the cutter is matched with the working surface of the steel rail, the rail top and the non-working surface of the steel rail. And the cutter profiling surface is inlaid with cutter grains. The cutter is a concave arc milling cutter, and the molding surface of the milling cutter is matched with the working surface of the steel rail, the rail top and the non-working surface of the steel rail. The guiding driving element, the cutter driving element and the vertical feeding driving element are servo motors or servo hydraulic motors or other power sources. The cutter driving element is connected to the processing unit mounting seat through the vertical feeding driving element. The rail clamping mechanism comprises a fixed rail clamping block and a movable rail clamping block which are mutually matched to clamp and position the steel rail; the clamping surfaces of the fixed clamping rail block and the movable clamping rail block are matched with the steel rail; The movable rail clamping block is connected with the main frame through a servo hydraulic cylinder of a servo executing element for driving the movable rail clamping block to clamp/unclamp a steel rail. The system also comprises a control system for controlling the inclination adjusting mechanism, the guiding unit and the processing unit to carry out downhill milling on the steel rail according to the height difference of the new rail and the old rail. The main frame is of a double-layer frame structure, each layer of frame comprises two longitudinal side beams and more than one transverse side beam, the upper layer of frame further comprises more than one middle c