CN220842531U

CN220842531U - Connecting device, suspension system and empty railway train

Info

Publication number: CN220842531U
Application number: CN202322809444.7U
Authority: CN
Inventors: 谢波; 张水清; 周飞; 何斌斌
Original assignee: Guangdong Jinglan Air Railway Development Co ltd
Current assignee: Guangdong Jinglan Air Railway Development Co ltd
Priority date: 2023-10-18
Filing date: 2023-10-18
Publication date: 2024-04-26
Anticipated expiration: 2033-10-18

Abstract

The utility model discloses a connecting device, a suspension system and an empty railway train. The connecting device is used for connecting the train body and the bogie of the air train and comprises a center pin, a damping mechanism and a limiting assembly. The center pin has an end portion, and the damper mechanism includes a first member, a connecting piece, and a second member, the connecting piece connecting the first member and the second member in such a manner that relative rotation between the first member and the second member along a center axis of the damper mechanism can occur. The spacing assembly is disposed between the end and the first member. The damping mechanism is provided with a hollow cavity, the center pin penetrates through the connecting piece and the hollow cavity, the center pin, the connecting piece and the first component are fixedly connected, so that the center pin, the connecting piece and the first component can rotate relative to the second component along the central axis of the center pin, and a gap is reserved between the center pin and the damping mechanism. The connecting device can improve the curve passing performance of the air-train.

Description

Connecting device, suspension system and empty railway train

Technical Field

The utility model relates to the technical field of air trains, in particular to a connecting device, a suspension system and an air train.

Background

The air train is one of rail transit and has the advantages of low construction cost, high space utilization rate, small environmental pollution, strong adaptability and the like. The rail beam of the air train is suspended in the air, the train body of the air train is suspended below the rail beam through the bogie and the suspension structure, and the framework of the bogie is arranged in the rail beam and is connected with the train body through the suspension structure. In the actual use of vertical base in the bogie, use air spring to carry out flexonics with the joist on the bogie and empty railway train car generally, air spring can reduce the vibration of passing through the joist and following the swing of vertical direction and being conducted to empty railway train car on the one hand, on the other hand can also make empty railway train's automobile body can maintain in the horizontality through aerifing in the air spring, and in the in-process of in-service use of bogie, the joist can not only apply the drawing/pressure of vertical direction to air spring, the joist also can apply horizontal force to air spring along the in-process of horizontal plane swing.

When an air train passes through a small-radius curve, a larger relative rotation angle is generated between the bogie and the train body, and if the relative rotation angle caused by the curve is adapted only by deformation of two air springs, the air springs are required to have enough deformation capability, but in the existing products, no air springs capable of meeting the requirements are available. Or in order to provide the air spring with sufficient deformability, it is necessary to provide the air spring to be larger than the existing air spring, but using such a larger volume of the air spring occupies more space, resulting in a change in the vehicle body structure while also compressing the layout space of other devices. In addition, the air spring with overlarge volume can also cause larger horizontal displacement, so that other structural parts are stressed excessively, for example, structural stress of guide wheels and the like is increased, and further the abrasion of the wheels is increased.

Disclosure of utility model

The utility model aims to solve one of the known technical problems at least to a certain extent, and provides a connecting device which can improve the curve passing performance of a train body of an air-train.

The utility model also provides a suspension system and an empty railway train.

According to a first aspect of the present utility model, a connecting device for connecting a body and a bogie of an air train includes: a center pin having an end;

The damping mechanism comprises a first member, a connecting piece and a second member, wherein the connecting piece is used for connecting the first member and the second member in a mode that the first member and the second member can rotate relatively along the central axis of the damping mechanism;

a spacing assembly disposed between the end and the first member;

The damping mechanism is provided with a hollow cavity, the center pin penetrates through the connecting piece and the hollow cavity, the center pin, the connecting piece and the first component are fixedly connected, so that the center pin, the connecting piece and the first component can rotate relative to the second component along the central axis of the center pin, and a gap is reserved between the center pin and the damping mechanism.

The connecting device according to the first aspect of the utility model has the following beneficial effects: the curve passing performance of the train body of the air train can be improved.

In some embodiments, the connector is a shock absorbing rubber or a shock absorbing spring.

In some embodiments, the stop assembly includes a first ring portion and a second ring portion that cooperate to limit the stop portion.

In some embodiments, the limiting component is formed with a plurality of first bulges along the circumferential direction, and the first ring part and the second ring part are respectively provided with at least one first bulge,

One end of the first member, which is far away from the connecting piece, is provided with a plurality of first grooves, and the first protrusions are respectively inserted into the first grooves;

Or alternatively

The limiting component is provided with a plurality of first grooves along the circumferential direction, at least one first groove is respectively arranged on the first ring part and the second ring part,

One end of the first member, which is far away from the connecting piece, is provided with a plurality of first bulges which are respectively inserted into the first grooves;

The first member is provided with a mounting groove, the limiting assembly is mounted in the mounting groove, and in the state that the limiting assembly is mounted in the mounting groove, the upper surface of the limiting assembly is flush with the upper surface of the first member.

In some embodiments, the end portion abuts against the limiting portion, a plurality of second protrusions are formed on the end portion along the circumferential direction, a plurality of second grooves are formed on the limiting portion along the circumferential direction, and the second protrusions are respectively inserted into the second grooves;

Or alternatively

The end part is formed with a plurality of second grooves along the circumferential direction, the limit part is formed with a plurality of second bulges along the circumferential direction, and the second bulges are respectively inserted into the second grooves.

The suspension system according to the second aspect of the present utility model comprises: the connection device of any one of the above and a suspension structure;

the suspension structure includes:

the hanging seat is connected with the connecting device,

Two swing arms, one ends of the two swing arms are respectively connected with the hanging seat,

The other ends of the two swing arms are respectively connected with the swing bolster, the two ends of the swing bolster are respectively provided with an air spring,

The swing arms are arranged at the center of the swing bolster at intervals along the length direction of the swing bolster.

The suspension system according to the second aspect of the utility model has the following advantageous effects: the curve passing performance of the train body of the air train can be improved.

In some embodiments, the vehicle further comprises a transverse shock absorber, one end of the transverse shock absorber is connected with one of the two swing arms, the other end of the transverse shock absorber is connected with the swing bolster, and the vehicle body is damped in the horizontal direction;

the air spring is matched with the damping device of the connecting device to damp the car body in the vertical direction.

In some embodiments, the swing bolster further comprises a transverse pull rod and a traction pull rod, wherein the transverse pull rod is arranged at one end of the swing bolster in the length direction, and one end of the transverse pull rod, which is far away from the swing bolster, is connected to a vehicle body sleeper beam;

The traction pull rod is arranged at one end of the swing bolster in the width direction, and one end, far away from the swing bolster, of the traction pull rod is connected to the vehicle body.

In some embodiments, when the suspension system is mounted to a bogie, a lower surface of the second member of the connection device abuts the bogie to fixedly connect the second member to the bogie, and the center pin, the spacing assembly, and the first member of the connection device are rotatable relative to the second member and the bogie along an axis of the center pin.

An air train according to a third aspect of the present utility model includes the suspension system according to any one of the above and a train body.

The empty railway train according to the third aspect of the utility model has the following beneficial effects: the curve passing performance of the train body of the air train can be improved.

Drawings

Fig. 1 is a perspective view of a connection device of the present utility model.

Fig. 2 is an exploded view of the connection device.

Fig. 3 is a top view of the connection device.

Fig. 4 is a cross-sectional view at A-A in fig. 3.

Fig. 5 is a perspective view of the suspension system of the present utility model.

Fig. 6 is a front view of the suspension system.

Fig. 7 is a side view of the suspension system.

Reference numerals:

A center pin 100; an end 101; a first inclined surface 101a; a second protrusion 102; a blocking member 110; a spacing assembly 200; a first ring portion 210; a second ring portion 220; a limit part 201; a second inclined surface 201a; a second groove 202; a first protrusion 203; a damper mechanism 300; a first member 310; a connector 320; a second member 330; a first groove 301; a hanging structure 400; a hanging seat 410; swing arms 420; a lateral damper 421; swing bolster 430; an air spring 431; a transverse tie rod 432; anti-roll torsion bar 433; pull rod 434.

Detailed Description

Examples of the present embodiment are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The examples described below by referring to the drawings are illustrative only for the explanation of the present embodiment and are not to be construed as limiting the present embodiment.

In the description of the present embodiment, it should be understood that the direction or positional relationship indicated with respect to the direction description, such as up, down, front, rear, left, right, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present embodiment and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present embodiment.

In the description of the present embodiment, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present embodiment, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly, and those skilled in the art may reasonably determine the specific meaning of the above terms in the present embodiment in combination with the specific contents of the technical solution.

In recent years, air-train is becoming more and more interesting and favored as an innovative rail traffic way. The air train is unique in that it is suspended below the track and driven by a motor so that the air train can travel without contacting the ground. The appearance of the air-train not only improves the urban traffic efficiency, but also adds new elements for urban landscapes. The appearance of air trains benefits from the continuous development of modern technology. Such air trains are generally composed of cars and suspension devices. The suspension device comprises an active suspension and a passive suspension, and can effectively reduce jolt and noise of running of the air-train. Meanwhile, the air-train also adopts an advanced electric control system and a safety system, so that the running of the air-train is safer and more efficient. The advantages of the air train are numerous. First, the empty railway train does not contact the ground, so the empty railway train is not limited by the terrain and can freely shuttle in the city. Secondly, the running speed of the air-train is relatively high, and the living requirement of the city fast rhythm can be met. In addition, the running noise of the air-train is smaller, and the pollution to the urban environment is also smaller. Most importantly, the construction cost of the air train is low, and a large amount of construction cost can be saved for the city.

The rail beam of the air train is suspended in the air, and the train body of the air train is suspended below the rail beam through the bogie and the suspension system. Generally, each car is provided with two bogies, which are provided at the front and rear ends of the car, respectively, and which are mounted in rail beams and are connected to the top of the car body by a suspension system. The motor drives the bogie so that the bogie runs along the track beam, and the bogie can drive the vehicle body and the bogie to run synchronously through the suspension system. In the prior art, suspension systems are generally classified into a harp type (asymmetric suspension steel wheel type) and a center pin type.

Specifically, for the suspension system of the center pin type, the bogie and the vehicle body are flexibly connected by adopting the air spring, the air spring can absorb shock to the vehicle body in the vertical direction on one hand, vibration and noise during running of the empty railway train are reduced, riding comfort of passengers is improved, and on the other hand, the vehicle body can be maintained in a horizontal state by the air spring.

In addition, the air spring may also change or maintain the height of the air spring through a height valve. The air pressure of the compressed air can be automatically adjusted along with the change of the load and the road condition, and the height of the vehicle body is ensured not to be changed along with the change of the load, so that the comfort of passengers in riding is improved. When the passing performance of the air train needs to be improved, the air spring can be adjusted through the height valve to lift the train body, and when the safety of the air train which is convenient for people or cargoes to go up and down or runs at high speed needs to be improved, the air spring can be adjusted through the height valve to lower the train body.

However, when the air train passes through a curve with a smaller radius (for example, the radius is smaller than 50 m), a larger relative rotation angle is generated between the bogie and the train body, and the air spring depends on the ductility of the air spring to adapt to the horizontal force applied by the air spring, so that the stability of the train body is difficult to be effectively maintained only by the deformability of the air spring of the existing suspension system. If the stability of the vehicle body is to be improved, an air spring having a stronger deformability is required, and as a result, the volume of the air spring is increased, but the use of such a larger air spring in the suspension system changes the vehicle body structure and severely squeezes the arrangement space of other devices.

In order to solve the above problems, the present utility model provides a connecting device capable of improving the stability of a train body of an air train.

According to the connecting device of the first aspect of the present utility model, the connecting device is used for connecting a train body and a bogie of an air train, and comprises a center pin 100, a shock absorbing mechanism 300 and a limit assembly 200. The center pin 100 has an end 101, and the damper mechanism 300 includes a first member 310, a connector 320, and a second member 330, the connector 320 connecting the first member 310 and the second member 330 in such a manner that relative rotation between the first member 310 and the second member 330 can occur along a central axis of the damper mechanism 300. The stop assembly 200 is disposed between the end 101 and the first member 310. The damper mechanism 300 is formed with a hollow cavity, the center pin 100 passes through the connector 320 and the hollow cavity, and the center pin 100, the connector 320 and the first member 310 are fixedly connected such that the center pin 100, the connector 320 and the first member 310 can rotate along a central axis of the center pin 100 with respect to the second member 330, and a gap is provided between the center pin 100 and the damper mechanism 300.

The connecting device is used as a device for connecting the bogie and the car body and is used for transmitting vertical force so as to realize the rotation of the car body relative to the bogie and optimize the stability and the flexibility of the empty railway train during operation. In the present embodiment, the connecting device is provided with the damper mechanism 300, and the damper mechanism 300 includes the first member 310 and the second member 330 and the connector 320 connecting the first member 310 and the second member 330, so that the first member 310 and the second member 330 can be rotated relatively. For example, when the first member 310 is fixed, the second member 330 can be rotated with respect to the first member 310 by deformation of the connector 320, or when the second member 330 is fixed, the first member 310 can be rotated with respect to the second member 330 by deformation of the connector 320.

In this embodiment, when the connecting device connects the bogie and the vehicle body, the second member 330 of the shock absorbing mechanism 300 is fixedly connected with the bogie, the center pin 100 is fixedly connected with the first member 310 through the limiting component 200, and under the action of the connecting piece 320, the center pin 100, the limiting component 200 and the first member 310 can rotate along the central axis of the center pin 100 relative to the fixed second member 330, so as to better perform vertical shock absorption on the vehicle body, improve the stability of the vehicle body, and further ensure the comfort of passengers. When the connecting device is matched with the air spring 431 in the suspension system, when the air train passes through the small radius curve, the relative deformation generated by the small curve can be borne by the damping mechanism 300 and the air spring 431 at the same time, so that the deformation of the air spring 431 can be effectively reduced, the smaller air spring 431 is arranged to adapt to the deformation, and other equipment installation spaces can be released. Meanwhile, since the air spring 431 with a large volume is not required to be arranged, the relative displacement between the swing bolster 430 and the vehicle body can be reduced, and the arrangement of other devices is facilitated. The stability of the car body is ensured, meanwhile, the equipment is compact, and the space is saved.

In addition, in order to ensure the rotational freedom of the center pin 100, to avoid the shaking and noise of the vehicle body caused by unnecessary friction, a gap exists between the center pin 100 and the shock absorbing mechanism 300, that is, the center pin 100 and the shock absorbing mechanism 300 are not in contact, the center pin 100 and the shock absorbing mechanism 300 are connected through the limiting assembly 200, on one hand, the connection strength of the center pin 100 and the first member 310 can be increased, the relative rotation between the center pin 100 and the first member 310 is avoided, on the other hand, the shaking or noise caused by the friction between the center pin 100 and the shock absorbing mechanism 300 can be avoided, the stability of the vehicle body is improved, and further the riding comfort of passengers is improved.

In order to secure the connection strength between the components and the stability of the vehicle body, the first member 310 and the second member 330 are preferably made of metal.

The connecting device according to the first aspect of the utility model has the following beneficial effects: the stability of the train body of the air train can be improved. In the present embodiment, the damper device having the first member 310, the connector 320, and the second member 330 is provided to be fitted to the outside of the center pin 100, so that the center pin 100 can rotate along the center axis of the center pin 100 with respect to the second member 330 fixed to the bogie, and the vehicle body can be stabilized when passing through a small radius curve.

In some embodiments, the connector 320 is a shock absorbing rubber or a shock absorbing spring. In order for the connector 320 to connect the first member 310 and the second member 330 in such a manner that the first member 310 and the second member 330 can be relatively rotated along the central axis of the damper mechanism 300, the connector 320 needs to have a small torsional rigidity and can be used in combination with the air spring 431 to provide a small turning resistance to the air train, thereby reducing wear of the guide wheels of the bogie. The connector 320 may be a member having shock absorbing capability and deformation capability such as shock absorbing rubber or a shock absorbing spring. The damping rubber can be selected from Natural Rubber (NR), butadiene Rubber (BR) or Styrene Butadiene Rubber (SBR) so as to have certain rigidity on the premise of ensuring the deformation capability. The damper springs may be selected from carbon spring steel, alloy spring steel, etc. having high elastic limit, fatigue limit, and a certain impact toughness.

In the present embodiment, the connector 320 is described as an example of the shock absorbing rubber. The damper rubber is used as the connector 320 to connect the first member 310 and the second member 330, and when the second member 330 is fixed to the bogie, the center pin 100, the stopper assembly 200 and the first member 310 are fixedly connected to form a unit, and the unit structure is capable of rotating around the central axis of the center pin 100 with respect to the second member 330 by deformation of the damper rubber, and damping the vehicle body in the vertical direction in cooperation with the air spring 431. Through setting up the damper 300 that has damping rubber, when the air-train passes through less radius curve, the relative deformation that produces by little curve can be undertaken by damping rubber and air spring 431 simultaneously to can effectively reduce the required deformation of air spring 431, need not set up bigger air spring 431, can release other equipment installation spaces. Meanwhile, due to the fact that the volume of the air spring 431 is smaller, the displacement between the swing bolster 430 connected with the air spring 431 and the vehicle body is reduced, and arrangement of other devices is facilitated.

In addition, the damping rubber and the air spring 431 are elastic components, have the capability of automatic recovery, and cannot form residual internal force to cause the eccentric wear of the tire.

In some embodiments, the spacing assembly 200 includes a first ring portion 210 and a second ring portion 220, the first ring portion 210 and the second ring portion 220 together defining a spacing portion 201. The stopper assembly 200 is disposed between the center pin 100 and the first member 310 for fixedly coupling the center pin 100 and the first member 310. The spacing assembly 200 includes two first and second ring portions 210, 220 that interface with each other to facilitate installation. For example, when assembling the connection device, the center pin 100 is inserted into the hollow cavity of the damper mechanism 300, a sufficient distance is left between the end 101 of the center pin 100 and the first member 310 of the damper mechanism 300, the first ring portion 210 and the second ring portion 220 are respectively installed from both sides of the center pin 100 in the radial direction of the center pin 100, so that the first ring portion 210 and the second ring portion 220 are abutted to form the stopper assembly 200, and then the center pin 100 is moved to tightly connect and fix the center pin 100, the stopper assembly 200 and the first member 310 into a whole.

In addition, in order to further increase the connection strength between the center pin 100 and the connector 320, so that the entire structure is compacted and matched, the end portion 101 of the center pin 100 further includes a first inclined surface 101a, the limiting portion 201 further includes a second inclined surface 201a, and when the center pin 100 is fixedly connected with the shock absorbing mechanism 300 through the first ring portion 210 and the second ring portion 220, the first inclined surface 101a of the end portion 101 is in abutting fit with the second inclined surface 201a of the limiting portion 201, and the first inclined surface 101a and the second inclined surface 201a are tightly attached to each other, so that the connection strength between the center pin 100 and the connector 320 is further increased. By means of the bevel engagement, the end portion 101 can be pressed against the first ring portion 210 and the second ring portion 220 in the radial direction, and the connection fixing strength of the center pin 100 and the damper mechanism 300 can be increased, so that the entire structure can be stably fixed and compacted.

In some embodiments, the limiting assembly 200 is formed with a plurality of first protrusions 203 along the circumferential direction, and the first ring portion 210 and the second ring portion 220 are respectively provided with at least one first protrusion 203, one end of the first member 310, which is far away from the connecting piece 320, is provided with a plurality of first grooves 301, and the first protrusions 203 are respectively inserted into the first grooves 301. Alternatively, the limiting assembly 200 may be formed with a plurality of first grooves 301 along the circumferential direction, and the first ring portion 210 and the second ring portion 220 are respectively provided with at least one first groove 301, and one end of the first member 310, which is far away from the connecting piece 320, is provided with a plurality of first protrusions 203, and the first protrusions 203 are respectively inserted into the first grooves 301. Through setting up first protruding 203 in one of spacing subassembly 200 and first component 310, another sets up first recess 301, first recess 301 inserts first protruding 203, can guarantee the zonulae occludens between spacing subassembly 200 and the first component 310, strengthen the joint strength between spacing subassembly 200 and the first component 310, avoid producing relative rotation between spacing subassembly 200 and the first component 310, and then guarantee the joint strength between the center pin 100 of installing in spacing subassembly 200 and the first component 310, avoid producing relative rotation between center pin 100 and the first component 310, ensure stable connection between each component, make the automobile body of empty iron train in the operation keep stable.

In addition, the center pin 100 and the damper 300 are connected and limited only by the limiting assembly 200, and the center pin 100 and the damper 300 are not contacted with each other, so that noise or vibration caused by friction can be avoided, the damping effect can be further increased, and the stability of the vehicle body can be improved.

The first member 310 is formed with a mounting groove, the spacing assembly 200 is mounted in the mounting groove, and in a state in which the spacing assembly 200 is mounted in the mounting groove, the upper surface of the spacing assembly 200 is flush with the upper surface of the first member 310. The spacing subassembly 200 is installed in first component 310 through the mounting groove, as the connection and spacing part between centre pin 100 and the first component 310, set up spacing subassembly 200 (i.e. first ring portion 210 and second ring portion 220)'s upper surface and the upper surface of first component 310 to the parallel and level, can make spacing subassembly 200 install behind the mounting groove and do not protrude in first component 310, guaranteed the compact connection between centre pin 100, spacing subassembly 200 and first component 310 to make the structure wholly occupy less space, the installation arrangement of other equipment of being convenient for.

In some embodiments, the end 101 of the center pin 100 abuts against the stopper 201, the end 101 is formed with a plurality of second protrusions 102 in the circumferential direction, the stopper 201 is formed with a plurality of second grooves 202 in the circumferential direction, and the second protrusions 102 are respectively inserted into the second grooves 202. Or the end 101 is formed with a plurality of second grooves 202 in the circumferential direction, the stopper 201 is formed with a plurality of second protrusions 102 in the circumferential direction, and the second protrusions 102 are respectively inserted into the second grooves 202. Through setting up the second arch 102 in one of tip 101 and spacing portion 201, the other sets up second recess 202, second recess 202 inserts second arch 102, can guarantee the close connection between king pin 100 and the spacing subassembly 200, strengthen the joint strength between king pin 100 and the spacing subassembly 200, avoid producing relative rotation between king pin 100 and the spacing subassembly 200, and then guarantee the joint strength between king pin 100 and the first component 310 of installing in spacing subassembly 200, avoid producing relative rotation between king pin 100 and the first component 310, ensure the stable connection between each component, make the automobile body of empty iron train in the operation keep stable.

The suspension system according to the second aspect of the present utility model comprises the connection device of any one of the above and the suspension structure 400. The suspension structure 400 includes a suspension base 410, two swing arms 420, and a swing bolster 430. The connecting device is connected to the hanging seat 410, one ends of the two swing arms 420 are respectively connected to the hanging seat 410, the other ends of the two swing arms 420 are respectively connected to the swing bolster 430, and air springs 431 are respectively arranged at two ends of the swing bolster 430. Wherein, the two swing arms 420 are arranged at intervals along the length direction of the swing bolster 430 at the center of the swing bolster 430. The suspension system is connected with the bogie and the car body, the suspension system comprises the connecting device and the suspension structure 400, and the suspension system and the air spring 431 are combined to act together, when the air train passes through the small radius curve, the relative deformation generated by the small curve can be borne by the connecting piece 320 (damping rubber in the embodiment) of the damping mechanism 300 and the air spring 431 together, so that the deformation of the air spring 431 can be effectively reduced, the small air spring 431 is arranged to adapt to the deformation, and other equipment installation spaces can be released. In addition, due to the smaller volume of the air spring 431, the relative displacement between the swing bolster 430 and the vehicle body is reduced, which is more beneficial to the arrangement of other devices. The damping rubber of the damping mechanism 300 has smaller torsional rigidity, and is in series connection with the air spring 431, and the combination of the damping rubber and the air spring 431 can enable the whole vehicle to have smaller rotation resistance, so that abrasion of the guide wheels of the bogie is reduced. The service life of the air train can be prolonged while the stability of the whole train is improved.

In this embodiment, the hanging seat 410, the two swing arms 420 and the swing bolster 430 are connected by a pin shaft to form a four-bar structure, so as to realize transverse vibration reduction of the vehicle body, and the vehicle body can have the characteristics of small limit and excellent stability.

In addition, when the coupling device is mounted to the hanger 410 of the suspension structure 400, one end of the center pin 100, which is remote from the shock absorbing mechanism 300, is fixedly coupled to the hanger 410 by a screw, and the end 101 of the center pin 100 is fixedly coupled to the bogie in the form of a screw and a key groove. Also, the center pin 100 is further provided with a stopper 110, and the stopper 110 serves to restrict radial movement between the center pin 100 and the bogie while retaining axial and rotational degrees of freedom. The stopper 110 may be integrally formed with the center pin 100 or may be mounted to the center pin 100 as a separate structure, and in this embodiment, the stopper 110 is preferably integrally formed with the center pin 100 for easy mounting and structural strength of the stopper 110.

The suspension system according to the second aspect of the utility model has the following advantageous effects: the curve passing performance of the air train can be improved. In this embodiment, since the suspension system is provided with the shock absorbing mechanism 300 and the air spring 431 at the same time, compared with the prior art, the shock absorbing rubber can share the deformation borne by the air spring 431 without using a larger volume of the air spring 431, so that the smaller volume of the air spring 431 can be used, the curve passing performance of an air-train is improved, the stability of the train body in the running process is improved, the shaking of the train body is reduced to a great extent, and the passengers have good riding experience when riding. Moreover, by adopting the suspension system disclosed by the utility model, the horizontal displacement of the air spring can be reduced, the stress of other structural parts is reduced, and the abrasion aggravation caused by overlarge stress of structures such as guide wheels and the like is avoided.

In some embodiments, the vehicle body is further provided with a transverse damper 421, one end of the transverse damper 421 is connected to one of the two swing arms 420, and the other end is connected to the swing bolster 430, so as to damp the vehicle body in a horizontal direction. The air spring 431 is engaged with a damper of the connecting device to damp the vehicle body in the vertical direction. Specifically, in order to further damp the vehicle body in the horizontal direction, the suspension system further includes a transverse damper 421, one end of the transverse damper 421 is connected to one of the two swing arms 420, and the other end is connected to the lower portion of the swing bolster 430, so that the vehicle body is further damped, and in the turning process, the stability of the vehicle body can be ensured, and comfortable riding experience is brought to passengers.

In some embodiments, a cross brace 432 and a traction brace 434 are also included, the cross brace 432 is disposed at one end of the bolster 430 in the length direction, and the end of the cross brace 432 remote from the bolster 430 is connected to the body bolster. The drag link 434 is disposed at one end of the bolster 430 in the width direction, and one end of the drag link 434 remote from the bolster 430 is connected to the vehicle body. The transverse tie bar 432 and the traction tie bar 434 may be hinged to the bolster 430 and the body bolster in such a manner as to restrict the lateral displacement and the longitudinal displacement of the body, respectively, to further improve the stability of the body.

In addition, an anti-roll torsion bar 433 is also provided between the bolster 430 and the car body to reduce the roll angle of the train.

In some embodiments, when the suspension system is mounted to the bogie, the lower surface of the second member 330 of the connection device abuts the bogie such that the second member 330 is fixedly connected to the bogie, and the center pin 100, the spacing assembly 200, and the first member 310 of the connection device are rotatable relative to the second member 330 and the bogie along the axis of the center pin 100. Specifically, when the second member 330 is fixed to the bogie, the center pin 100, the limiting assembly 200 and the first member 310 can be fixedly connected to form a unit, and the unit structure can rotate around the central axis of the center pin 100 relative to the second member 330 through deformation of the damping rubber, and damp the vehicle body in the vertical direction in cooperation with the air spring 431, thereby reducing shaking of the vehicle body.

For further damping in the vertical direction, an orifice may also be provided in the air spring 431 to provide vertical damping.

An air train according to a third aspect of the present utility model includes the suspension system of any one of the above and a train body. Specifically, the air train may include the suspension system, a vehicle body disposed below the suspension system, and a vehicle body bolster (not shown), the vehicle body being connected to the bogie through the suspension system, one end of the suspension system being connected to a frame of the bogie, and the other end being connected to the vehicle body through the vehicle body bolster.

The empty railway train according to the third aspect of the utility model has the following beneficial effects: the curve passing performance of the air train can be improved. Through being provided with above-mentioned suspension, can make the automobile body keep stable in the operation in-process, improve the curve passing performance of air-railway train to make the small curve circuit of air-railway train accessible, thereby improved the line adaptability of air-railway train greatly and promoted the application scenario of air-railway system.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While examples of the present embodiment have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the embodiments, the scope of which is defined by the claims and their equivalents.

Claims

1. The connecting device for connect train body and bogie of air train, its characterized in that includes:

A center pin having an end;

a spacing assembly disposed between the end and the first member;

2. The connection device of claim 1, wherein the connection member is a shock absorbing rubber or a shock absorbing spring.

3. The connection device of claim 1, wherein the stop assembly includes a first loop portion and a second loop portion, the first loop portion and the second loop portion together limiting the stop portion.

4. The connecting device according to claim 3, wherein the limiting assembly is formed with a plurality of first protrusions in a circumferential direction, and the first ring portion and the second ring portion are respectively provided with at least one of the first protrusions,

Or alternatively

5. The connection device according to claim 4, wherein the end portion abuts against the stopper portion, the end portion is formed with a plurality of second protrusions in a circumferential direction, the stopper portion is formed with a plurality of second grooves in a circumferential direction, and the second protrusions are respectively inserted into the second grooves;

Or alternatively

6. Suspension system, characterized by comprising a connection device according to any of claims 1 to 5 and a suspension structure;

the suspension structure includes:

the hanging seat is connected with the connecting device,

7. The suspension system of claim 6, further comprising a lateral shock absorber, one end of the lateral shock absorber being connected to one of the two swing arms, the other end being connected to the bolster, and shock absorbing the vehicle body in a horizontal direction;

8. The suspension system of claim 7, further comprising a transverse tie rod and a traction tie rod, the transverse tie rod being disposed at one end of the bolster in a length direction and one end of the transverse tie rod remote from the bolster being connected to a body bolster;

9. A suspension system according to claim 8, wherein when the suspension system is mounted to a bogie, a lower surface of the second member of the connection means abuts the bogie to fixedly connect the second member to the bogie, the centre pin, the spacing assembly and the first member of the connection means being rotatable relative to the second member and the bogie along the axis of the centre pin.

10. An air train comprising the suspension system according to any one of claims 6 to 9 and a train body.