阅读说明：本技术 地铁工程车辆转向架轴箱整体起吊时的连接装置 (Connecting device for integrally hoisting bogie axle box of metro engineering vehicle ) 是由 穆青 马超 李田 朱世昌 张伟杰 张乾宇 朱红军 吴庆立 苗武 张龙平 滕聪 于 2019-11-26 设计创作，主要内容包括：提供一种地铁工程车辆转向架轴箱整体起吊时的连接装置,弹簧上座和弹簧下座位于转向架构架和轮对轴箱之间且弹簧上座固连于转向架构架上,连接于转向架构架上的工艺销穿过弹簧上座和弹簧下座上的中心孔伸至弹簧下座外部,弹簧下座下端适配于轮对轴箱上的安装孔内且减振垫套设于弹簧下座上,工艺销下端与锁紧件可拆式固连后实现转向架构架与轮对轴箱起吊时的刚性连接。本发明消除了整体起吊时转向架构架与轮对轴箱的起吊空行程,避免了起吊时缓冲弹簧的错位,降低了一系垂向油压减振器超过最大拉升行程的风险,保障了转向架构架与轮对轴箱整体起吊时的安全性与可靠性,顶升设备利用率高,设计合理,经济适用,提高了操作的安全性与可靠性。(The utility model provides a connecting device when subway engineering vehicle bogie axle box wholly lifts by crane, spring seat of honour and spring seat of honour are located between bogie frame and the wheel pair axle box and the spring seat of honour links firmly on the bogie frame, the centre bore that connects on the bogie frame on passing spring seat of honour and spring seat of honour extends the spring seat of honour outside, spring seat of honour lower extreme adaptation is in the mounting hole on the wheel pair axle box and the damping cushion cover is located the spring seat of honour, realize the rigid connection when bogie frame and wheel pair axle box lift by crane after technology round pin lower extreme links firmly with removable retaining member. The lifting device eliminates the lifting idle stroke of the bogie frame and the wheel set axle box during integral lifting, avoids the dislocation of the buffer spring during lifting, reduces the risk that a system of vertical oil pressure shock absorbers exceed the maximum lifting stroke, ensures the safety and reliability during integral lifting of the bogie frame and the wheel set axle box, has high utilization rate of lifting equipment, reasonable design, economy and applicability, and improves the safety and reliability of operation.)

1. The connecting device comprises an upper spring seat (1), a buffer spring (2), a lower spring seat (7), a damping pad (6), a process pin (3) and a flat pin (5), wherein the upper spring seat (1) and the lower spring seat (7) are positioned between a bogie framework (9) and a wheel set axle box (8), the upper spring seat (1) is fixedly connected onto the bogie framework (9), the buffer spring (2) is arranged between the upper spring seat (1) and the lower spring seat (7), the process pin (3) connected onto the bogie framework (9) penetrates through center holes in the upper spring seat (1) and the lower spring seat (7) to extend to the outside of the lower spring seat (7), the lower end of the lower spring seat (7) is matched in a mounting hole in the wheel set axle box (8), and the damping pad (6) positioned on the upper end face of the axle box (8) is sleeved on the lower spring seat (7), the method is characterized in that: the lower end of the process pin (3) is detachably and fixedly connected with the locking piece to realize rigid connection when the bogie frame (9) is hoisted with the wheel set axle box (8).

2. The connecting device for integrally hoisting the bogie axle box of the metro engineering vehicle according to claim 1, is characterized in that: the locking piece is a lifting nut (12), the lower end of the process pin (3) is provided with an external thread (10), a lifting gasket (11) below the wheel set axle box (8) is sleeved on the process pin (3), and the rigid connection between the bogie frame (9) and the wheel set axle box (8) is realized after the lifting nut (12) is screwed in fit with the external thread (10) at the lower end of the process pin (3).

3. The connecting device for integrally hoisting the bogie axle box of the metro engineering vehicle according to claim 2, is characterized in that: the lower end of the process pin (3) is provided with a long hole (13), the long hole (13) is axially parallel to the process pin (3), the lower end of the process pin (3) is provided with a pin hole (14) perpendicular to the long hole (13), the flat pin (5) penetrates through the long hole (13) and is installed on the process pin (3), the split pin (4) penetrates through the pin hole (14) and the hole in the flat pin (5) and then locks the flat pin (5), and the bogie frame (9) sequentially detaches the split pin (4) and the flat pin (5) before lifting the whole vehicle, sleeves a lifting gasket (11) on the process pin (3), screws the lifting gasket to the external thread (10) at the lower end of the process pin (3) through a lifting nut (12) and lifts the vehicle.

Technical Field

The invention belongs to a bogie of a subway engineering vehicle, and particularly relates to a connecting device for integrally hoisting a bogie shaft box of the subway engineering vehicle.

Background

At present, a buffer spring between a bogie frame and a wheel set axle box of a metro engineering vehicle is installed by pre-compressing the buffer spring by adopting a process pin and a flat pin, after the vehicle is assembled, a gap which is suitable for the change of a primary suspension dynamic load is reserved at the bottom of the flat pin and the wheel set axle box, when the bogie frame is integrally lifted along with the vehicle, a hydraulic jacking device jacks up the frame, the frame drives the bogie frame to lift, the bogie frame drives the process pin and the flat pin to lift, and when the reserved gap between the flat pin and the bottom of the wheel set axle box is consumed, the flat pin and the bottom of the wheel set axle box are mutually limited, so that the rigid connection between the bogie frame and the wheel set axle box is realized, and then the binderless lifting between the bogie frame and the; however, with the increasing requirements of subway engineering vehicles on rescue lifting in the current stage, the lifting safety and the lifting timeliness are required, namely, the existing overall lifting mode often consumes the gap between the flat pin and the bottom of the wheel set axle box, the stroke of hydraulic lifting equipment is insufficient, and the lifting efficiency is low, and improvement is needed to solve the problems.

Disclosure of Invention

The technical problems solved by the invention are as follows: the utility model provides a connecting device when subway engineering vehicle bogie axle box wholly lifts by crane, through with the removable back that links firmly of technology round pin lower extreme and retaining member, rigid connection when realizing bogie frame and wheel set axle box lift by crane, the poor problem of hydraulic pressure jacking equipment suitability has been solved, the empty stroke of lifting by crane of bogie frame and wheel set axle box when having eliminated whole lift by crane, buffer spring's dislocation when having avoided lifting by crane, the risk that a system of vertical oil pressure shock absorber surpassed the biggest stroke that draws, security and reliability when having ensured bogie frame and wheel set axle box wholly lift by crane, jacking equipment utilization ratio is high, and reasonable design, moreover, the steam generator is simple in structure, economy and applicability, the security and the reliability of operation have been improved.

The technical scheme adopted by the invention is as follows: connecting device when subway engineering vehicle bogie axle box wholly lifts by crane, including spring upper bracket, buffer spring, spring lower carriage, damping pad, technology round pin and flat round pin, spring upper bracket and spring lower carriage are located between bogie frame and the wheel pair axle box and the spring upper bracket links firmly on the bogie frame, buffer spring locates between spring upper bracket and the spring lower carriage, and the technology round pin of connecting on bogie frame passes the centre bore on spring upper bracket and the spring lower carriage and extends the spring lower carriage outside, spring lower carriage lower extreme adaptation just is located the damping pad cover of wheel pair axle box up end in the mounting hole on the wheel pair axle box and locates on the spring lower carriage, the rigid connection when bogie frame and wheel pair axle box lift by crane is realized to technology round pin lower extreme and retaining member removable back.

The locking piece is a lifting nut, an external thread is formed at the lower end of the process pin, a lifting washer below the wheel set axle box is sleeved on the process pin, and the rigid connection between the bogie frame and the wheel set axle box is realized after the lifting nut is screwed with the external thread at the lower end of the process pin in a matching manner.

Furthermore, the lower end of the process pin is provided with a long hole which is axially parallel to the process pin, the lower end of the process pin is provided with a pin hole which is perpendicular to the long hole, the flat pin penetrates through the long hole and is installed on the process pin, the cotter pin penetrates through the pin hole and the holes in the flat pin and then locks the flat pin, the bogie frame sequentially detaches the cotter pin and the flat pin before lifting the whole vehicle, then sleeves the lifting washer on the process pin, and screws the lifting washer on the outer thread of the lower end of the process pin through the lifting nut.

Compared with the prior art, the invention has the advantages that:

1. according to the technical scheme, after the lower end of the process pin is detachably and fixedly connected with the locking piece, rigid connection between the bogie frame and the wheel set axle box during lifting is realized, the lifting idle stroke of the bogie frame and the wheel set axle box during integral lifting is eliminated, the dislocation of a buffer spring during lifting is avoided, and the risk that a system of vertical oil pressure vibration absorbers exceed the maximum pulling stroke is reduced;

2. according to the technical scheme, after the cotter pin and the flat pin are sequentially disassembled before the whole vehicle is lifted, the lifting washer is sleeved on the process pin and is matched and screwed with the external thread at the lower end of the process pin through the lifting nut for lifting, the disassembly and the installation before and after the lifting are convenient and quick, and the process pin meets the pre-compression installation requirement of the buffer spring when the bogie frame and the wheel set are assembled in the axial direction and the requirement of gapless installation between the bogie frame and the wheel set axle box when the bogie frame is lifted;

3. the technical scheme ensures the safety and reliability of the whole hoisting process of the bogie frame and the wheel set axle box, has high jacking equipment utilization rate, reasonable design and simple structure, improves the safety and reliability of operation, and is convenient to operate, economical, applicable and convenient to install and overhaul.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the invention before lifting;

FIG. 3 is a schematic view of the structure of the process pin of the present invention.

Detailed Description

In the following, an embodiment of the present invention will be described in conjunction with fig. 1 to 3, so as to clearly and completely describe the technical solution, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, not the whole embodiment.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The connecting device for integrally hoisting the bogie axle box of the metro engineering vehicle comprises an upper spring seat 1, a buffer spring 2, a lower spring seat 7, a damping pad 6, a process pin 3 and a flat pin 5, the upper spring seat 1 and the lower spring seat 7 are positioned between a bogie frame 9 and a wheel set axle box 8, the upper spring seat 1 is fixedly connected on the bogie frame 9, the buffer spring 2 is arranged between the upper spring seat 1 and the lower spring seat 7, and the process pin 3 connected to the bogie frame 9 extends to the outside of the unsprung portion 7 through the center holes of the sprung portion 1 and the unsprung portion 7, the lower end of the lower spring seat 7 is adapted to a mounting hole on the wheel-set axle box 8, and the damping pad 6 positioned on the upper end surface of the wheel-set axle box 8 is sleeved on the lower spring seat 7, the lower end of the process pin 3 is detachably and fixedly connected with a locking piece to realize rigid connection when the bogie frame 9 and the wheel set axle box 8 are lifted; specifically, the locking piece is a lifting nut 12, the lower end of the process pin 3 is provided with an external thread 10, a lifting washer 11 below the wheel set axle box 8 is sleeved on the process pin 3, and the rigid connection between the bogie frame 9 and the wheel set axle box 8 is realized after the lifting nut 12 is matched and screwed with the external thread 10 at the lower end of the process pin 3; specifically, the lower end of the process pin 3 is provided with a long hole 13, the long hole 13 is axially parallel to the process pin 3, the lower end of the process pin 3 is provided with a pin hole 14 perpendicular to the long hole 13, the flat pin 5 penetrates through the long hole 13 and is mounted on the process pin 3, the cotter pin 4 penetrates through the pin hole 14 and the holes in the flat pin 5 to lock the flat pin 5, the steering frame 9 sequentially detaches the cotter pin 4 and the flat pin 5 before lifting the whole vehicle, and then the lifting washer 11 is sleeved on the process pin 3 and is screwed with the external thread 10 at the lower end of the process pin 3 through the lifting nut 12.

The technical scheme is mainly used for pre-compressing the buffer spring 3 during assembling of a bogie frame 9 and a wheel set axle box 8 before hoisting, wherein the lower end of a process pin 3 is provided with external threads 10, the lower end of the process pin 3 is provided with a long hole 13 for installing a flat pin 5 and a pin hole 14 for installing a split pin 4, when the whole body is hoisted, the split pin 4 and the flat pin 5 are taken out in sequence, then a hoisting washer 11 is sleeved at the lower end of the process pin 3, and a hoisting nut 12 is screwed in a matching way with the external threads 10 at the lower end of the process pin 3, so that gapless installation among the hoisting nut 12, the hoisting washer 11 and the wheel set axle 8 is realized; the mechanism can effectively eliminate idle stroke between a bogie frame 9 and a wheel set axle box 8 during lifting through the matching of a process pin 3 with an external thread 10, a lifting washer 11 and a lifting nut 12, realizes the idle stroke-free lifting of the bogie frame 9 and the wheel set axle box 8, prevents a buffer spring 3 of the wheel set axle box 8 from being misplaced or exceeding the maximum pulling stroke of a vertical oil pressure shock absorber during lifting, can safely and quickly realize the integral lifting of the bogie frame and the wheel set axle box 8 by utilizing general hydraulic lifting equipment, further realizes the integral lifting of a whole vehicle and the bogie, improves the safety and reliability of operation, ensures the safety of lifting and the applicability of hydraulic lifting equipment, has high utilization rate of the lifting equipment, is reasonable in design and simple in structure, improves the safety and reliability of operation, and is convenient to operate, economical, apply to use and install and overhaul.

The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.