CN104590985B - The lift of rail vehicle entirety lifting and lifting method - Google Patents

Abstract

The present invention relates to a kind of lift and the lifting method of rail vehicle entirety lifting, towing pin is installed a lifting seat, described lifting seat stretches out to the framework of both sides, two lifting points are cooperatively formed with the first position limiting structure on the framework of both sides when lifting, simultaneously, utilize drawing pull bar and vertical limit stops cooperatively forms the 3rd lifting point, by three lifting points by car body and bogie entirety lifting.The present invention utilizes the parts such as existing drawing pull bar to simplify and optimize structure, make overall structure advantages of simple, combined the function realizing overall lifting by different parts, the parts of increase are few, it is possible to well realize lightweight, low cost, easy for installation, and realize 3 liftings between car body and bogie, uniform force during lifting, can ensure when lifting steadily reliable, the phenomenon such as will not glance off.

Description

Lifting device and lifting method for overall lifting of rail vehicles

technical field

The invention relates to an overall lifting device for a rail vehicle and a lifting method, belonging to the technical field of rail vehicle manufacturing.

Background technique

The rail vehicle is composed of a car body and a bogie. The load between the car body and the bogie is realized by secondary springs, and the traction and braking force is transmitted from the bogie to the car body through the traction rod. China's standard EMUs must be exported overseas, so it is necessary to lift the whole vehicle during sea transportation, and if there is an abnormal situation during the operation of the rail vehicle, and in order to realize the heavy work caused by not lifting the vehicle and pushing out the bogie when replacing the single wheel set Due to the workload, it is often necessary to hoist the car body and the bogie as a whole.

The traditional rail vehicles are equipped with hoisting devices such as lifting holes on the bogie and the car body respectively. Before hoisting, multiple rigid booms need to be installed between the bogie and the car body. The hoisting hole of the car body is connected, and the self-weight of the bogie is borne by a plurality of rigid suspenders, so that the car body and the bogie are stably connected and hoisted as a whole. When the rail vehicle is running at high speed, there will be relative movements such as deflection and lateral movement between the bogie and the car body. Therefore, when the vehicle is in normal operation, the rigid boom cannot be installed on the car body and must be removed. Similarly, because of the deflection and Relative movements such as lateral movement make the installation of the boom more difficult or even impossible, which brings certain obstacles to the overall lifting of the bogie and car body. In addition, lifting devices such as booms need to be temporarily assembled, and there are many connecting fasteners, and they are only used in lifting conditions, and they also occupy a large space, which reduces work efficiency and is time-consuming and laborious.

In the Chinese patent "a hoisting and limiting device for urban rail vehicle" with the patent number of 201320002221.3, a structure for integral hoisting of the car body and bogie is disclosed. Bolts, install lock nuts on the limit bolts. When the device is hoisted, the fifth wheel is lifted by the traction pin and the disc-shaped stop cover at the bottom of the fifth wheel, and at the same time four limit bolts are lifted by the fifth wheel to complete the overall lifting of the car body and the bogie. Although the structure is simple, easy to install and maintain, and can run with the vehicle, but relying on four limit bolts, its lifting capacity is relatively weak. The stability is also greatly affected.

Contents of the invention

The main purpose of the present invention is to solve the above problems and deficiencies, and to provide a lifting device with a simple and reasonable structure, which can ensure stable lifting of rail vehicles as a whole.

Another main purpose of the present invention is to provide a lifting method for the overall lifting of rail vehicles that can ensure stable lifting.

For realizing the above object, technical scheme of the present invention is:

A lifting device for overall lifting of a rail vehicle, comprising a frame, a transverse stop seat, a traction rod, a traction pin and a vertical limit stop, the transverse stop seat and the vertical limit stop are installed on the On the frame, the two ends of the traction rod are respectively connected to the frame and the traction pin, and a lifting suspender is installed on the traction pin, and the lifting suspender has extensions protruding to the framework on both sides, The frame is provided with a first limiting structure for lifting and cooperating with the protruding part of the lifting seat, and there is a first stop structure between the first limiting structure and the protruding part of the lifting seat. There is a gap on the traction rod with a second position-limiting structure that cooperates with the vertical limit stopper for hoisting, and there is a gap between the vertical limit stopper and the second position-limiting structure of the traction rod. second gap.

Further, the frame is composed of two side beams, two beams and two longitudinal auxiliary beams, the two beams are arranged in parallel between the two side beams, and the two longitudinal auxiliary beams are arranged in parallel between the two beams, so The transverse stop seat is fixedly mounted on the longitudinal auxiliary beam, and the vertical limit stop is fixedly mounted on the cross beam.

Further, the second limiting structure on the pulling rod is the circumferential surface of the end of the pulling rod, or a limiting plane cut out on the circumference of the end of the pulling rod, and the circumferential surface or the limiting The plane cooperates with the vertical limit stop when lifting.

Further, the lifting seat is fixedly connected with the traction pin through a first bolt.

Further, the middle of the two protruding parts of the lifting seat forms an upwardly concave inverted U-shaped structure.

Further, the first limiting structure is a limiting seat provided on the frame and protruding toward the pulling pin.

Further, the limit seat is the transverse stop seat.

Further, the transverse stop seat is fixed on the frame through the back seat.

Further, the first gap and the second gap have the same value.

Another technical scheme of the present invention is:

A lifting method for the overall lifting of a rail vehicle. A lifting suspension seat is installed on the traction pin, and the lifting suspension seat protrudes to the frames on both sides, and when lifting, it is in contact with the first limit structure on the two sides of the frame. Cooperate to form two lifting points, and at the same time, use the cooperation of the traction rod and the vertical limit stop to form the third lifting point, and lift the car body and the bogie as a whole through the three lifting points.

In summary, compared with the prior art, the lifting device and lifting method for the overall lifting of rail vehicles according to the present invention have the following advantages:

(1) Simplify and optimize the structure by using the existing traction rods and other components, so that the overall structure is simple and reasonable, and realize the overall lifting function through the combination of different components. High quality, low cost, easy installation, and help to reduce the impact force of the lateral wheel rail, will not damage the track, and can also be used for the transformation of existing vehicles.

(2) Three lifting points are set between the car body and the bogie to realize the three-point lifting between the car body and the bogie, and the force is even when lifting, which can ensure stable and reliable lifting. Skew etc. will occur.

(3) It is suitable for single wheel set replacement when lifting the whole vehicle or without lifting the vehicle during sea transportation and maintenance, and it can run with the vehicle while realizing the overall lifting of the bogie and vehicle body, without affecting the normal operation of the vehicle.

(4) In the present invention, the first bolt and the traction pin are fixedly connected to the lifting bracket, so that the installation position of the lifting bracket can be determined according to the on-site assembly conditions, and the values of the first gap C1 and the second gap C2 can be guaranteed by a simple method The same, so as to ensure that when lifting, the three points are stressed at the same time, so that the force is dispersed and the overall carrying capacity is guaranteed.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a cross-sectional view along line A-A of Fig. 1 .

As shown in Figure 1 and Figure 2, car body 1, frame 2, traction pin 3, traction rod 4, transverse stop seat 5, protrusion 5a, transverse shock absorber 6, beam 7, longitudinal auxiliary beam 8, bolt 9 , traction rod node 10, limit plane 11, shock absorber mounting seat 12, connection seat 13, anti-loosening device 14, back seat 15, bolt 16, vertical limit stop 17, lifting seat 18, extension 19, the first bolt 20.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

As shown in Figure 1 and Figure 2, a rail vehicle overall lifting device provided by the present invention is used for overall lifting of the car body and bogie, including car body 1, frame 2, traction pin 3, traction rod 4, transverse Stopper 5, transverse shock absorber 6 and vertical limit stopper 17.

Among them, the frame 1 is composed of two side beams (not shown in the figure), two beams 7 and two longitudinal auxiliary beams 8, the two beams 7 are parallel to each other and perpendicular to the side beams, and the two beams 7 are made of seamless steel pipes structure, the two ends of the two beams 7 are welded and fixed on the side beams on both sides, two longitudinal auxiliary beams 8 are arranged between the two beams 7, the two longitudinal auxiliary beams 8 are arranged in parallel and perpendicular to the beam 7, and the longitudinal auxiliary beams The cross-section of the beam 8 is II-shaped, which can be spliced and welded by plates, or it can be made of stainless steel profiles. And in the space surrounded by two longitudinal auxiliary beams 8.

The top of the traction pin 3 is fixedly connected on the car body 1 by a plurality of bolts 9, and the traction rod 4 is installed at the bottom position of the traction pin 3, the traction rod 4 is one, and one end of the traction rod 4 is connected with the frame 2, and the traction rod 4 The other end of the traction rod 4 is connected to the bottom of the traction pin 3 through the traction rod node 10, and the bottom of the traction pin 3 has a U-shaped structure that is concave inward. The two ends of each are fixedly connected on the two side walls of the U-shaped structure by bolts 16.

A transverse stop seat 5 is respectively arranged on both sides of the traction pin 3, and a rubber transverse stop is installed on the transverse stop seat 5 for limiting the lateral movement of the vehicle body. A transverse shock absorber 6 is arranged on both sides of the traction pin 3, symmetrically arranged on the longitudinal auxiliary beams 11 on both sides of the traction pin 2, and the transverse shock absorber 6 is used to attenuate the transverse vibration of the vehicle body. In this embodiment, one end of the transverse shock absorber 6 is fixedly connected to the shock absorber mount 12 on the longitudinal auxiliary beam 11 , and the other end is fixedly connected to the upper position of the traction pin 3 . Fixing the transverse shock absorber 6 between the traction pin 3 and the frame 2 can ensure that the joint rotation angle of the transverse shock absorber 6 is small, which is conducive to passing a small radius curve, and can simplify the structure of the bottom of the traction pin 3 and the traction rod 3, Reduce the weight of the bogie. A shock absorber mounting seat 12 is installed on the longitudinal auxiliary beam 11, a connecting seat 13 is installed on the traction pin 3, and the two ends of the transverse shock absorber 6 are respectively connected to the shock absorber mounting seat 12 and the On the connecting seat 13 on the traction pin 3.

The vertical limit stop 17 is welded and fixed on the beam 7. When the air spring (not shown in the figure) in the secondary suspension device is overcharged, the car body 1 will rise abnormally, and the vertical limit stop 17 can effectively Prevent the air spring from overcharging and ensure the safe operation of the vehicle.

As shown in Fig. 1 and Fig. 2, in the present embodiment, a lifting seat 18 is installed on the traction pin 3, and the lifting seat 18 has an extension 19 protruding to the longitudinal auxiliary beam 8 on both sides, in order to increase the lifting The overall strength of the hanger 18 is that the hanger 18 is made of integral forging or spliced and welded weather-resistant steel plates, which is roughly a box structure. The middle of the two protruding parts 19 of the lifting seat 18 forms an upwardly concave inverted U-shaped structure, and the top edge of the inverted U-shaped structure is fixedly connected with the traction pin 3 through two first bolts 20 . In order to prevent the first bolts 20 from loosening during the operation of the vehicle, an anti-loosening device 14 is also provided on the two first bolts 20 .

Corresponding to the two protruding parts 19 on the lifting base 18, a first limit structure for lifting and cooperating with the protruding parts 19 is respectively arranged on the two longitudinal auxiliary beams 8, the first limit structure is set The limit seat on the longitudinal auxiliary beam 8, in this embodiment, in order to simplify the structure, the limit seat adopts the horizontal stop seat 5 itself, and the transverse stop seat 5 is welded and fixed on the longitudinal auxiliary beam through the back seat 15. The side portion of 8, the back seat 15 is roughly box-shaped structure, plays the effect that connects transverse stop seat 5 and longitudinal auxiliary beam 8, and transverse stop seat 5 has the protruding part 5a that protrudes toward traction pin 3 direction. In order to improve the overall strength, the transverse stop seat 5 and the back seat 15 are made of weather-resistant steel plates with a certain thickness or materials with high strength.

When lifting, the protruding part 19 of the lifting seat 18 lifts the protruding part 5a of the transverse stop seat 5 from below the protruding part 5a of the transverse stop seat 5 to play the role of lifting. The contact area between the protruding portion 19 and the protruding portion 5a of the transverse stop seat 5 can be measured and controlled as required to ensure stable and reliable lifting while ensuring the strength and required carrying capacity of the lifting.

As shown in Figure 2, there is a second position-limiting structure on the traction rod 4 that cooperates with the vertical limit stopper 17. Itself cooperates with the vertical limit stop 17 to realize lifting.

In order to ensure the stability when lifting, in this embodiment, it is preferable to cut out a limiting plane 11 as a second limiting structure on the circumference of the end of the pulling rod 4 without affecting the overall strength of the pulling rod 4. The limit plane 11 pushes up the vertical limit stop 17 from below the vertical limit stop 17 when lifting. Since there is a certain contact area between the limit plane 11 and the vertical limit stopper 17, and the contact area can be measured and controlled as required, the lifting is more stable and the carrying capacity is stronger.

There is a first gap C1 between the protruding portion 5a of the lateral stop seat 5 and the protruding portion 19 of the lifting seat 18, there is a second gap C2 between the vertical limit stop 17 and the traction rod 4, and the first gap C1 The value is the same as that of the second gap C2. When the vehicle is running normally, the first gap C1 and the second gap C2 ensure that the lifting seat 18, the protrusion 5a of the traction rod 4 and the lateral stop seat 5 and the vertical limit stop 17 will not touch, to ensure the normal operation of the vehicle. When the overall lifting is required for shipping, maintenance, etc., the car body 1 is first lifted upwards, driving the traction pin 3 to move upwards, and the lifting seat 18 and the traction rod 4 also move upwards accordingly, and the two protruding parts of the lifting seat 18 19 simultaneously jack up the protruding parts 5a of the transverse stop seats 5 on the two longitudinal auxiliary beams 8, and at the same time, the limit plane 11 on the traction rod 4 lifts up the vertical limit stop 17, and then the bogie is also Hoisting to realize the overall lifting of the car body and bogie.

The lifting method described in the present invention is a three-point lifting method. When lifting, the two extensions 19 of the lifting seat 18 are respectively connected with the protrusions of the transverse stopper seats 5 on the longitudinal auxiliary beams 8 on both sides. Part 5a cooperates to form two lifting points, and at the same time, utilizes the cooperation of the traction rod 4 and the vertical limit stopper 17 to form a third lifting point, and the car body and the bogie are lifted as a whole through the three lifting points. The hoisting method with three-point support can effectively ensure that the overall hoisting of the car body and bogie is stable and reliable without deflection.

The present invention uses the existing traction rods and other components to simplify and optimize the overall lifting structure. Only the lifting base 18 and other structures are added, and there are few added parts, which can achieve light weight, reduce the mass between the springs, and reduce the cost. Low, easy installation and maintenance.

A certain contact area can be guaranteed between the protruding part 19 of the lifting seat 18 and the protruding part 5a of the transverse stop seat 5, and between the limit plane 11 of the traction rod 4 and the vertical limit stop 17, Each lifting point is evenly stressed, and the bearing capacity is evenly distributed, further ensuring the stability of lifting.

The lifting base 18 is fixedly connected with the traction pin 3 by the first bolt 20, so that the installation position of the lifting base 18 can be determined conveniently according to the on-site assembly conditions, and a simple method can ensure that the values of the first gap C1 and the second gap C2 are the same. In this way, it is ensured that when lifting, the three points are stressed at the same time, so that the force is dispersed and the overall carrying capacity is guaranteed.

As mentioned above, a similar technical solution can be derived in combination with the content of the solution given in the accompanying drawings. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solutions of the present invention.

Claims (10)

1. a lift for rail vehicle entirety lifting, including framework, horizontal stopping seat, drawing pull bar, leads Drawing pin and vertical limit stops, described horizontal stopping seat and vertical limit stops are arranged on described framework, described in lead The be pulled two ends of bar are connected with described framework and towing pin respectively, it is characterised in that: on described towing pin, install one Lifting seat, described lifting seat has the extension that the framework to both sides stretches out, described framework is provided with for The first position limiting structure that the extension lifting of described lifting seat coordinates, described first position limiting structure and described lifting seat There is between extension the first gap, described drawing pull bar has and coordinates with described vertical limit stops lifting Second position limiting structure, has between second between described vertical limit stops and the second position limiting structure of described drawing pull bar Gap.

The lift of rail vehicle entirety lifting the most according to claim 1, it is characterised in that: described structure Frame is made up of two curb girders, two crossbeams and two longitudinal floor stringers, two crossbeams be set in parallel in two curb girders it Between, two longitudinal floor stringers are set in parallel between two crossbeams, and described horizontal stopping seat is fixedly mounted on described vertical On floor stringer, described vertical limit stops is fixedly mounted on described crossbeam.

The lift of rail vehicle entirety lifting the most according to claim 1 and 2, it is characterised in that: described The second position limiting structure in drawing pull bar is the periphery of described drawing pull bar end, or is at described drawing pull bar end The spacing plane cut out on portion's circumference, described periphery or spacing plane when lifting with described vertical limit stops Lifting coordinates.

The lift of rail vehicle entirety lifting the most according to claim 1 and 2, it is characterised in that: described Lifting seat is connected by the first bolt and described towing pin are fixing.

The lift of rail vehicle entirety lifting the most according to claim 4, it is characterised in that carry described in: The inverted U-shaped that the intermediate formation of two extensions of flap seat is concave up.

The lift of rail vehicle entirety lifting the most according to claim 1 and 2, it is characterised in that: described First position limiting structure is the limit base stretched out to described towing pin direction being arranged on described framework.

The lift of rail vehicle entirety lifting the most according to claim 6, it is characterised in that: described limit Position seat is described horizontal stopping seat.

The lift of rail vehicle entirety lifting the most according to claim 7, it is characterised in that: described horizontal stroke It is fixed on described framework by back of the body seat to stopping seat.

The lift of rail vehicle entirety lifting the most according to claim 1, it is characterised in that: described One gap is identical with the numerical value in the second gap.

10. one kind uses the lifting side of the lift of rail vehicle entirety lifting described in any one of claim 1-9 Method, it is characterised in that: installing a lifting seat on towing pin, described lifting seat stretches out to the framework of both sides, is carrying Cooperatively form two lifting points when hanging with the first position limiting structure on the framework of both sides, meanwhile, utilize drawing pull bar and hang down The 3rd lifting point is cooperatively formed, by three lifting points by car body and bogie entirety lifting to limit stops.