CN-122009264-A - Integral frame rocking arm formula location freight train bogie

CN122009264ACN 122009264 ACN122009264 ACN 122009264ACN-122009264-A

Abstract

The invention relates to the technical field of truck bogies, in particular to an integral framework rotary arm type positioning truck bogie. The frame is formed by welding side beams, end beams and cross beams. The wheel set is connected with the side beam through a pivoted arm type axle box positioning device, and the device comprises a positioning pivoted arm, an axle box body and an elastic suspension system. The sleeper beam is connected with the framework through an anti-side rolling torsion bar mechanism, a traction mechanism and a transverse hydraulic damper. The conical stop piece is arranged in the spring group, so that the conical stop piece is prevented from being connected with the inner spring and ground, a rubber pad is vulcanized at the bottom of the spring, and the additional transverse stiffness is reduced. The basic braking mechanism adopts symmetrical double braking beams, and high-efficiency braking is realized through an optimized pull rod hinging system. The invention solves the problems of easy breaking of the axle box spring, easy abrasion of the stop piece, slow braking response and the like, and improves the reliability and fatigue life of key parts of the bogie.

Inventors

Lin Duohao
GAO GUOYANG
BI YAN
NIU BAOKANG
ZHANG WEIWEI
MENG LING
CUI XINGHUA
Tian Zhaoxiong
CAO QINQIN
YIN ZEYU

Assignees

兰州交通大学

Dates

Publication Date: 20260512
Application Date: 20260313

Claims (9)

1. The integral frame pivoted arm type positioning truck steering frame is characterized by comprising a frame, two sets of wheel set assemblies, a foundation braking mechanism and a sleeper beam, wherein the two sets of wheel set assemblies are arranged on the frame, the frame comprises two oppositely arranged side beams, a front end beam and a rear end beam which are connected with the end parts of the two side beams, and two parallel tubular cross beams which are arranged between the two side beams, each set of wheel set assembly is connected with the end parts of the two corresponding side beams through two pivoted arm type axle box positioning devices, and axle box spring mounting seats, vertical shock absorber mounting seats and pivoted arm hinging seats are arranged at the two ends of the side beams; The rotary arm type axle box positioning device comprises a positioning rotary arm, an axle box body, an elastic suspension system, a vertical hydraulic damper and a wheel set bearing arranged in the axle box body, wherein the axle box body is formed by enclosing a positioning rotary arm and a clamping hoop, a spring bearing platform and a vertical damper support are arranged on the positioning rotary arm, the elastic suspension system is arranged between an axle box spring mounting seat and the spring bearing platform, the positioning rotary arm is connected with a rotary arm hinging seat through a rubber hinging node, and the vertical hydraulic damper is arranged between the vertical damper mounting seat and the vertical damper support; And two ends of the sleeper beam are connected with the framework through an anti-side rolling torsion bar mechanism, a traction mechanism and a transverse hydraulic shock absorber.
2. The steering frame of the integral frame pivoted arm type positioning truck of claim 1, wherein a center plate is arranged in the middle of the upper surface of the sleeper beam, side bearing boxes are arranged on two sides of the upper surface of the center plate, a torsion bar mounting seat and a transverse shock absorber mounting seat are arranged on two sides of the bottom of the sleeper beam, and a torsion bar support and a transverse shock absorber support are also arranged on the outer side wall of the side beam; One end of the anti-rolling torsion bar mechanism is connected with the torsion bar mounting seat, the other end of the anti-rolling torsion bar mechanism is connected with the torsion bar support, one end of the transverse hydraulic damper is connected with the transverse damper support, and the other end of the transverse hydraulic damper is connected with the transverse damper mounting seat.
3. The integrated frame pivoted arm positioning truck steering frame of claim 1, wherein the foundation brake mechanism comprises a brake cylinder, a front brake and a rear brake which are symmetrically arranged, the front brake is connected with the rear brake through a connecting beam, the front brake comprises a front brake frame, a first front brake beam and a second front brake beam, one end of the front brake frame is fixedly connected with the front beam, the other end of the front brake frame is fixedly connected with a cross beam, both ends of the first front brake beam are connected with first front brake heads, each first front brake head is hinged with the front beam through a first suspender, the first front brake beam is also hinged with the front beam through a connecting rod, and a connecting hole of the first suspender and the first front brake head is connected with the connecting hole of the first front brake head through a limiting rod; The two ends of the second front brake beam are connected with second front brake heads, each second front brake head is hinged with the side beam through a second suspender, the second front brake beam is also hinged with the front end beam through a connecting rod, and the second suspender is connected with the bottom of the second front brake head through a limiting rod; The front brake frame comprises a first pull rod, a second pull rod, a first brake pull rod and a second brake pull rod, one end of the first pull rod is hinged with the front brake frame, the other end of the first pull rod is fixedly connected with the middle part of the first brake pull rod, the bottom of the first brake pull rod is hinged with a first front brake beam, and the first brake pull rod is connected with the output end of a brake cylinder; One end of the second pull rod is fixedly connected with the front brake frame, the other end of the second pull rod is hinged with the middle of the second brake pull rod, the bottom of the second brake pull rod is hinged with the second front brake beam, and the first brake pull rod is connected with the second brake pull rod through a connecting rod.
4. The one-piece frame tumbler positioning truck steering frame of claim 2, wherein the rear end brake comprises a rear brake frame, a first rear brake beam and a second rear brake beam, one end of the rear brake frame is fixedly connected with the rear end beam, the other end of the rear brake frame is fixedly connected with the cross beam, both ends of the first rear brake beam are connected with first rear brake heads, each first rear brake head is hinged with the rear end beam through a first suspender, the first rear brake beam is also hinged with the rear end beam through a connecting rod, and the first suspender is connected with a connecting hole of the first rear brake head through a limiting rod; The two ends of the second rear brake beam are connected with second rear brake heads, each second rear brake head is hinged with the side beam through a second suspender, the second rear brake beam is also hinged with the rear end beam through a connecting rod, and the second suspender is connected with the bottom of the second rear brake head through a limiting rod; the rear brake frame comprises a first pull rod, a second pull rod, a first brake pull rod and a second brake pull rod, one end of the first pull rod is hinged with the rear brake frame, the other end of the first pull rod is fixedly connected with the middle part of the first brake pull rod, and the bottom of the first brake pull rod is hinged with a first rear brake beam; One end of the second pull rod is fixedly connected with the rear brake frame, the other end of the second pull rod is hinged with the middle part of the second brake pull rod, the bottom of the second brake pull rod is hinged with the second rear brake beam, and the first brake pull rod is connected with the second brake pull rod through a connecting rod; And a brake shoe is fixedly arranged on the first front brake head, the second front brake head and the second rear brake head.
5. The steering frame of an integral frame pivoted arm type positioning truck as claimed in claim 4, wherein the anti-rolling torsion bar mechanism comprises a transmission bar, a bent bar and a vertical bar, wherein the bent bar and the vertical bar are arranged on two sides of the transmission bar, two ends of the transmission bar are rotatably connected with a sleeper beam, one end of the vertical bar is connected with the torsion bar support, and the other end of the vertical bar is connected with the transmission bar through the bent bar.
6. The steering frame of the integral frame pivoted arm type positioning truck of claim 5, wherein the middle part of the side beam is concave downwards, a rubber pile mounting seat is arranged at the concave part of the middle part, and a plurality of groups of rubber piles are arranged between the two ends of the sleeper beam and the concave surface of the side beam; One end of the rubber pile is connected with the side beam, and the other end of the rubber pile is connected with the sleeper beam.
7. The steering frame of the integral frame pivoted arm type positioning truck of claim 6, wherein the elastic suspension system comprises a spring group, a rubber pad, a spring lower clamping plate, a spring upper clamping plate and a stop piece arranged in the spring group, the spring group comprises an inner spring and an outer spring, the inner spring is arranged in the outer spring, the rubber pad is fixed on the spring lower clamping plate in a vulcanization mode, and the outer spring and the inner spring are respectively connected with the axle box spring mounting seat and the spring bearing platform through the spring lower clamping plate and the spring upper clamping plate; The diameter of the spring wire of the outer spring is 48mm, the diameter of the spring wire is 235mm, the number of spring turns is 4.5, the spring rate of the spring wire is 903N/mm, the diameter of the spring wire of the inner spring is 30mm, the diameter of the spring wire is 140mm, the number of spring turns is 6.2, and the spring rate of the spring wire is 467N/mm.
8. The steering frame of the integral frame pivoted arm type positioning truck of claim 7, wherein the stop piece comprises a base and a rubber body, the base is fixed on a spring bearing platform, the top of the rubber body is provided with an upper end limiting cover, the bottom of the rubber body is provided with a bottom plate, the rubber body is fixed on the base through the bottom plate, and the rubber body is formed by vulcanizing a rubber and a metal partition plate; the rubber body is of a conical structure, the outer diameter of the top end of the rubber body is 65mm, and the outer diameter of the bottom end of the rubber body is 80mm.
9. The truck bogie with the integral frame and the rotary arm type positioning function according to claim 7, wherein the traction mechanism is arranged in the middle of the bottom of the sleeper beam and comprises a bearing table and a traction connecting seat, the bearing table is connected with the traction connecting seat through a traction center pin, and two sides of the traction connecting seat are connected with two cross beams through a first traction pull rod and a second traction pull rod respectively.

Description

Integral frame rocking arm formula location freight train bogie Technical Field The invention relates to the technical field of truck bogies, in particular to an integral framework rotating arm type positioning truck bogie. Background The performance of the truck bogie as a core running component of a railway vehicle is directly related to the running safety, stability, curve passing capability and service life of key components of the train. However, with the acceleration of freight transportation, the development of heavy load and the complexity of line conditions, the prior art gradually exposes a number of reliability problems to be solved in practical application. First, the durability of a primary suspension system is challenging. As a core component for buffering wheel rail impact, the double-coil spiral steel spring set is easy to generate fatigue fracture under the action of long-term complex load, and particularly the condition that an outer spring is prior to an inner spring is common. In addition, the traditional elastic stop used for vertical limiting under extreme working conditions is arranged inside the spring set and connected with the inner spring for grinding, so that the stop rubber body is often cracked, and the protection effect is lost. In addition, the traditional braking mechanism has the problems of complex structure, more transmission links, slow braking response, uneven abrasion of brake shoes and the like. Therefore, there is a need to develop a bogie with a reasonable structure, reasonable bearing distribution of the suspended core components, and high foundation braking efficiency for locating the bogie of a truck with an integral frame and a rotary arm, so as to prolong the service life of the suspended core components. Disclosure of Invention The present invention aims to provide an integral frame boom positioning truck bogie which solves the problems mentioned in the background art. The invention provides an integral frame pivoted arm type positioning truck steering frame, which comprises a frame, two sets of wheel pair assemblies, a foundation braking mechanism and a sleeper beam, wherein the two sets of wheel pair assemblies are arranged on the frame, the frame comprises two oppositely arranged side beams, a front end beam and a rear end beam which are connected with the end parts of the two side beams, and two parallel tubular cross beams arranged between the two side beams, each set of wheel pair assemblies is connected with the end parts of the two corresponding side beams through two pivoted arm type axle box positioning devices, and axle box spring mounting seats, vertical shock absorber mounting seats and pivoted arm hinging seats are arranged at the two ends of the side beams; The rotary arm type axle box positioning device comprises a positioning rotary arm, an axle box body, an elastic suspension system, a vertical hydraulic damper and a wheel set bearing arranged in the axle box body, wherein the axle box body is formed by enclosing a positioning rotary arm and a clamping hoop, a spring bearing platform and a vertical damper support are arranged on the positioning rotary arm, the elastic suspension system is arranged between an axle box spring mounting seat and the spring bearing platform, the positioning rotary arm is connected with a rotary arm hinging seat through a rubber hinging node, and the vertical hydraulic damper is arranged between the vertical damper mounting seat and the vertical damper support; And two ends of the sleeper beam are connected with the framework through an anti-side rolling torsion bar mechanism, a traction mechanism and a transverse hydraulic shock absorber. Preferably, a central disc is arranged in the middle of the upper surface of the sleeper beam, side bearing boxes are arranged on two sides of the upper surface of the central disc, a torsion bar mounting seat and a transverse shock absorber mounting seat are arranged on two sides of the bottom of the sleeper beam, and a torsion bar support and a transverse shock absorber support are further arranged on the outer side wall of the side beam; One end of the anti-rolling torsion bar mechanism is connected with the torsion bar mounting seat, the other end of the anti-rolling torsion bar mechanism is connected with the torsion bar support, one end of the transverse hydraulic damper is connected with the transverse damper support, and the other end of the transverse hydraulic damper is connected with the transverse damper mounting seat. Preferably, the foundation braking mechanism comprises a braking cylinder, front-end brakes and rear-end brakes which are symmetrically arranged, wherein the front-end brakes are connected with the rear-end brakes through connecting beams, the front-end brakes comprise a front braking frame, a first front braking beam and a second front braking beam, one end of the front braking frame is fixedly connected with the front-end beam, the other end of the fr