CN208515315U - Flexural pivot and articulated system with front and back flexural pivot - Google Patents

Abstract

The utility model discloses a kind of flexural pivots, including inner ring, rubber layer and outer ring, fluting is offered on outer ring, the center position of the depth direction of slot toward rubber layer extends, bottom surface extends close to inner ring, and the buffer area being oppositely arranged is formed in rubber layer, for transmitting and releasing stress, it is designed by the internal structure to flexural pivot, to promote impact resistance and prolong the service life；Also disclose a kind of articulated system, including side arm, after-frame and turntable bearing, flexural pivot above-mentioned is connected separately in the front end of side arm and the rear end of after-frame, there is a connection frame in the rear end of the after-frame, hydraulic cylinder is connected between connection frame and side arm, it by above technical scheme, can guarantee the safety of vehicle driving, and promote the comfort level of passenger.

Description

Flexural pivot and articulated system with front and back flexural pivot

Technical field

The utility model relates to articulated vehicle technical field more particularly to a kind of flexural pivots, have the characteristics that high resistance to torsion；Also relate to And a kind of articulated system, it is respectively connected with flexural pivot between frame and compartment before and after articulated system, provides freedom degree for vehicle, and It is connected with hydraulic system between the frame of front and back, to guarantee vehicle driving safety and promote comfort of passenger.

Background technique

Articulated coach, be connected by articulated mounting and interconnected, passenger can walk about therebetween two rigid compartments Car composed by body has the characteristics that capacity is big, passenger capacity is high.

Current articulated system, for flexural pivot due to the characteristic of self structure, service life is shorter, influences compartment and hinged system The connective stability of system, and usually articulated system is unable to satisfy two sections or more piece twin shaft in front truck or rear car arrangement flexural pivot Articulated coach uses, before only adapting in set or the demand of postposition vehicle, and the system having lacks damping control, leads to vehicle Safety is insufficient under steam, while also reducing the comfort level of passenger.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of flexural pivot, by the internal structure to flexural pivot into Row design, to promote impact resistance and prolong the service life；And a kind of articulated system is additionally provided, it is same in side arm and after-frame When configuration flexural pivot and damping system, to promote the safety of vehicle.

The technical solution of the utility model is as follows:

Flexural pivot is equipped with rubber layer, rubber layer and outer ring sulphur including the inner ring to socket-connect with mandrel between mandrel and outer ring Change bonding, inner ring and outer ring are metal layer, and rubber layer is for playing the role of buffer shock-absorbing；Opposite set is offered on outer ring The center position of the fluting set, depth direction toward the rubber layer of slot extends, and bottom surface extends close to inner ring, formed in rubber layer The buffer area being oppositely arranged can generate extrusion deformation when mandrel is carrying out pitching movement or when rocking to rubber, rubber by Active force can be transferred to buffer area after deformation, and active force can be discharged by aperture to outside.

A preferred technical solution, slot are extended after extending to rubber layer, then in parallel to two sides extend, formed with The concentric arcuate segments of inner ring, by the way that a part of impact, and the side by active force to buffer area to slot can be absorbed using arcuate segments To gradually transmitting.

Further improved technical solution is additionally provided with hollow area at the center of rubber layer, the arc-shaped structure in hollow area, and interior Circle with one heart, by utilizing the hollow area, can assist the arcuate segments to carry out energy-obsorbing and damping, i.e., in the work by different directions After firmly, by that arcuate segments can be cooperated to absorb a part impact using hollow area, when guaranteeing has required angle, no It will lead to rubber excessively to deform, help to reduce intensity.

Further improved scheme on the basis of preceding solution, at least in the arcuate segments or the hollow area One or both ends be equipped with energy-absorbing area, the aperture in energy-absorbing area is greater than the face height of hollow area, passes through and utilizes the energy-absorbing area It can be extended absorption to initial impact, the impact to hollow area or arcuate segments is reduced, by the way that impact force can be dredged Hollow area or arcuate segments are dissipated to, when the impact that hollow area absorbs reaches saturation, impact can be transferred in arcuate segments, and finally be led to The aperture being connected with arcuate segments is crossed to be discharged.

We additionally provide a kind of articulated system, including side arm, after-frame and turntable bearing, and turntable bearing can connect side arm And after-frame, and it is relatively rotatable to each other side arm and after-frame, ball above-mentioned is connected separately in the front end of side arm and the rear end of after-frame Hinge, car body are fastened by bracket and mandrel, and 3 freedom can be respectively formed between side arm and car body or after-frame and car body Degree, the i.e. pitch angle of vertical direction, the torsion angle and angle of oscillation of horizontal direction protect turntable bearing to better adapt to operating condition； There is a connection frame in the rear end of the after-frame, flexural pivot is installed on the connection frame, and the both ends of connection frame are connected separately with liquid The other end of cylinder pressure, hydraulic cylinder is connected with side arm respectively, positioned at the two sides of turntable bearing, is capable of providing resistance using hydraulic cylinder Buddhist nun, guarantees the safety of vehicle driving, while being able to ascend the comfort level of passenger.

As a kind of further improved technical solution, lug is equipped on the side arm, lug is distributed in turntable bearing Two sides, offer through-hole on lug；It is respectively equipped with connecting plate at the both ends of the connection frame, offers through-hole on connecting plate, By utilizing through-hole, lug can be connected with hydraulic cylinder.

As a kind of perferred technical scheme, the lug positioned at the same side of the side arm is vertically distributed in pairs, One end of hydraulic cylinder can be arranged in the side of turntable bearing, facilitate and stretch, and will not interfere with.

As a kind of further improved technical solution, the connecting plate positioned at connection frame the same side divides in pairs from vertical direction Cloth, wherein having groove in the left and right sides of after-frame, the depth of groove is greater than the cylinder diameter of hydraulic cylinder, when hydraulic cylinder is retracted to minimum When, it is accommodated in the groove just, and top will not be collided with side arm or turntable bearing.

Improvement project on the basis of preceding solution, is equipped with cavity on the side arm or after-frame, and cavity is opposite In the symmetrical distribution of the center line of articulated system, the purpose of loss of weight can be played using cavity, while being able to maintain left and right Balance.

As a kind of perferred technical scheme, it is connected separately in the end of the side arm and the after-frame in always 3 flexural pivots of line, wherein the center of intermediate flexural pivot and turntable bearing is on same straight line, and intermediate flexural pivot is capable of forming To the auxiliary of two sides flexural pivot, it is ensured that stress balance.

The utility model has the advantages that the utility model is able to bear pitching by the way that a kind of flexural pivot is arranged, using buffer area, reverses and wave The impact in direction has stronger shock resistance；We additionally provide a kind of articulated system, match on side arm and after-frame It is equipped with the flexural pivot, can be improved the reliability of connection using the flexural pivot, and is provided with hydraulic cylinder, to guarantee the peace of vehicle driving Entirely, the comfort level of passenger is promoted.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the overall structure diagram of articulated system disclosed in the utility model embodiment；

Fig. 2 is the structural schematic diagram of side arm disclosed in the utility model embodiment；

Fig. 3 is the structural schematic diagram of after-frame disclosed in the utility model embodiment；

Fig. 4 is the structural schematic diagram of the first flexural pivot disclosed in the utility model embodiment；

Fig. 5 is the structural schematic diagram of second of flexural pivot disclosed in the utility model embodiment；

Fig. 6 is the structural schematic diagram of the utility model embodiment improved flexural pivot on the basis of Fig. 4；

Fig. 7 is the structural schematic diagram of the utility model embodiment improved flexural pivot on the basis of Fig. 4；

Fig. 8 is the structural schematic diagram for the flexural pivot that the utility model embodiment optimizes on the basis of Fig. 6；

Fig. 9 is the structural schematic diagram for the flexural pivot that the utility model embodiment optimizes on the basis of Fig. 7.

Number and corresponding component title represented by letter in figure:

1, side arm；2, after-frame；21, groove；3, turntable bearing；4, flexural pivot；41, mandrel；42, inner ring；43, rubber layer；44, Outer ring；45, slot；46, arcuate segments；47, hollow area；48, energy-absorbing area；5, hydraulic cylinder；6, lug；7, connection frame；8, cavity.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Detailed description.

A kind of articulated system for trolley bus, in conjunction with Fig. 1 to Fig. 3, including side arm 1, after-frame 2 and turntable bearing 3, In, the side arm 1 is connected with front compartment, and the after-frame 2 is connected with trunk, and turntable bearing 3 is connected to side arm 1 and after-frame Between 2, make vehicle during traveling, side arm 1 and after-frame 2 can carry out opposite rotation with the movement of vehicle.

Fig. 1 shows the overall structure diagram of articulated system, wherein it is connected with flexural pivot 4 in the end of side arm 1, in conjunction with Fig. 2, respectively left flexural pivot 4, middle flexural pivot 4 and right flexural pivot 4, has been correspondingly connected with bracket on front compartment, passes through ball by mandrel 41 Hinge 4, is connected with bracket；In conjunction with Fig. 3, it is also connected with flexural pivot 4 in the end of after-frame 2, the position phase with the flexural pivot 4 on side arm 1 It is corresponding, it is also respectively provided with left flexural pivot 4, middle flexural pivot 4 and right flexural pivot 4, bracket has been correspondingly connected on trunk, is worn by mandrel 41 Flexural pivot 4 is crossed, is connected with bracket.

During traveling, due to being connected with turntable bearing 3 between side arm 1 and after-frame 2, turntable bearing 3 can make vehicle Side arm 1 and after-frame 2 relatively rotate, and side arm 1 is connected with front compartment by flexural pivot 4, and after-frame 2 passes through 4 phase of flexural pivot with trunk Therefore connection for articulated system, can generate the freedom in three directions using flexural pivot 4 between side arm 1 and front compartment Degree, the respectively pitching movement of vertical direction, the twist motion and oscillating motion of horizontal direction；Similarly, after-frame 2 and trunk Between using flexural pivot 4 can also generate the freedom degree in three directions, respectively from the pitching movement of vertical direction, from level The twist motion and oscillating motion in direction.

Guaranteeing 1 uniform force of side arm by can be realized using three flexural pivots 4, being stably connected with side arm 1 with front compartment, subtracting Light load enhances bonding strength.

Fig. 4 shows a kind of cross-section structure of flexural pivot, and flexural pivot 4 used by the present embodiment includes inner ring 42, rubber layer 43 With outer ring 44, inner ring 42 and outer ring 44 are metal layer, and rubber layer 43 is fitted by way of vulcanization with outer ring 44；In outer ring Slot 45 is offered on 44, the position of slot 45 is opposite, for example, opening up slot 45 in the top and bottom of outer ring 44, slot 45 passes through outer Circle 44 enters to inside rubber layer 43, bottom end close to the outer diameter of the inner ring 42, i.e., of length no more than outer ring 44 of aperture and The thickness of rubber layer 43.

As described in aforementioned, in vehicular motion, flexural pivot 4 can bear pitching, distortion and swing, in reality In operating condition, when vehicle is climbed by horizontal section, an angle will form between front compartment and trunk, at this point, Flexural pivot 4 needs to bear the impact from pitching movement can be in rubber layer 43 itself by carrying out fluting 45 in rubber layer 43 During carrying out absorption impact, 45 compound rubber layer 43 of slot can further energy-absorbing, and rubber can be prevented by instantaneous It is excessively squeezed and deformed when impact, it is caused to shorten the working life.

Same reason, when vehicle is by slope, flexural pivot 4 can bear the impact from twist motion, 43 meeting of rubber layer It is squeezed to side, at this time by utilizing slot 45, bigger free space, slot 45 can be provided when being squeezed for rubber layer 43 It can release stress, while also can reduce the intensity that rubber layer 43 is hit, effective protection rubber layer 43.

When vehicle passes through bumpy road, since left and right vehicle wheel shakes, flexural pivot 4 can be made to be rushed by from oscillating motion It hits, rubber layer 43 can be squeezed frequently to middle part, and by that can make the release impact of rubber layer 43 using slot 45, it is empty to expand buffering Between, prevent premature aging.

Fig. 5 shows the schematic diagram of the section structure of further improved flexural pivot, in the figure, structure and Fig. 4 phase of flexural pivot 4 Seemingly, including inner ring 42, rubber layer 43 and outer ring 44, the inner ring 42 and the outer ring 44 are metal layer, we from outer ring 44 to 43 direction of rubber layer fluting 45, slot 45 is opened to rubber layer 43, along the camber line of rubber layer 43, is extended to two sides, is passed through benefit A part of impact can be absorbed with arcuate segments 46, and active force is gradually transmitted to buffer area to the direction of slot 45.

Fig. 6 shows the schematic diagram of the section structure of improved flexural pivot on the basis of Fig. 4, and Fig. 7 is shown to be changed on the basis of Fig. 5 Into flexural pivot the schematic diagram of the section structure, wherein combine Fig. 4 and Fig. 5 on the basis of, in the center of rubber layer 43 is additionally provided with Dead zone 47 is formed by the arc-shaped structure of hollow area 47, concentric with inner ring 42, by utilizing the hollow area 47, Neng Goufu The arcuate segments 46 are helped to carry out energy-obsorbing and damping, i.e., after the active force by different directions, by that can match using hollow area 47 It closes arcuate segments 46 and absorbs a part of impact, when guaranteeing has required angle, not will lead to rubber and excessively deform, facilitate Reduce intensity.

Fig. 8 shows the schematic diagram of the section structure of more excellent improved flexural pivot on the basis of Fig. 6, and Fig. 9 shows the base in Fig. 7 The schematic diagram of the section structure of the flexural pivot of Optimal improvements on plinth, that is, at least the one of the arcuate segments 46 or the hollow area 47 End or both ends are equipped with energy-absorbing area 48, and the aperture in energy-absorbing area 48 is greater than the face height of hollow area 47, by utilizing the energy-absorbing Area 48 can be extended absorption to initial impact, reduce the impact to hollow area 47 or arcuate segments 46, by that can incite somebody to action Impact force is evacuated to hollow area 47 or arcuate segments 46, and when the impact that hollow area 47 absorbs reaches saturation, impact can be transferred to arc In shape area 46, and it is discharged eventually by the slot 45 being connected with arcuate segments 46.

It is similar with the aforementioned operating condition in actual condition, when by pitching, reverse and wave the impact in direction when, By being able to carry out energy-obsorbing and damping using energy-absorbing area 48, it can also reach energy-obsorbing and damping, especially energy-absorbing area using arcuate segments 46 48 can protect arcuate segments 46, meanwhile, hollow area 47 can assist arcuate segments 46, and hollow area 47 can also The protection for receiving energy-absorbing area 48, gradually evacuates impact force, by above technical scheme, formation multistage inside flexural pivot 4 can be made to release The channel of power is bled off pressure, effective protection flexural pivot 4 promotes the stability of connection.

In addition, there is a connection frame 7 in the rear end of after-frame 2, flexural pivot 4 is installed on the connection frame 7, connection frame 7 Both ends are connected separately with hydraulic cylinder 5, and the other end of hydraulic cylinder 5 is connected with side arm 1 respectively, and link position is, before described Frame 1 is equipped with lug 6, and lug 6 is distributed in the two sides of turntable bearing 3, offers through-hole on lug 6.

It is attached in this manner, is respectively equipped with connecting plate at the both ends of the connection frame 7, opens on connecting plate Lug 6 can be connected with hydraulic cylinder 5,5 end of hydraulic cylinder after connection is located at turntable equipped with through-hole by utilizing through-hole The two sides of bearing 3 are capable of providing damping using hydraulic cylinder 5, guarantee the safety of vehicle driving, while being able to ascend relaxing for passenger Appropriateness.

The vertically distribution in pairs of lug 6 of the same side of the side arm 1 will be especially located at, it can be by hydraulic cylinder 5 One end be arranged in the side of turntable bearing 3, facilitate and stretch, can have enough distance of stretch out and draw back guaranteeing hydraulic cylinder 5 Under the premise of, it will not be collided with turntable bearing 3 or side arm 1, that is to say, that specific by the way that one is arranged on side arm 1 Space, can be used in steadily connection liquid cylinder pressure 5, and can guarantee will not be with turntable bearing 3 and side arm 1 in motion process Interfere.

In addition, will not interfere with after-frame 2 to guarantee hydraulic cylinder 5 during the motion, it is same connection frame 7 will to be located at The connecting plate of side is distributed in pairs from vertical direction, wherein having groove 21 in the left and right sides of after-frame 2, the depth of groove 21 is greater than The cylinder diameter of hydraulic cylinder 5 is accommodated in the groove 21 just when hydraulic cylinder 5 is retracted to minimum, and top will not be with side arm 1 Or turntable bearing 3 collides.

Preferably, referring to Fig.1, cavity 8 is equipped on the side arm 1 or after-frame 2, cavity 8 is relative to articulated system The symmetrical distribution of center line, moreover, the cavity be alongst formed strip structure cavity, pass through utilization Cavity 8 can play the purpose of loss of weight, while be able to maintain left-right balance.

By above technical scheme, a kind of articulated system for trolley bus provided by the utility model, anti-impact Excellent performance is hit, can satisfy the demand of various operating conditions, it is ensured that stable connection between compartment；By being arranged on the basis of flexural pivot 4 The hydraulic cylinder 5 that can be used cooperatively with it provides damping for vehicle driving, improves safety.

Above-described is only preferred embodiments of the present invention, it is noted that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.

Claims (10)

1. flexural pivot is equipped with rubber layer including the inner ring to socket-connect with mandrel between mandrel and outer ring, rubber layer and outer ring vulcanize Bonding；It is characterized in that, offering the slot being oppositely arranged on outer ring, the center position of direction toward the rubber layer of slot extends, bottom Face extends close to inner ring, and the buffer area being oppositely arranged is formed in rubber layer.

2. flexural pivot as described in claim 1, which is characterized in that slot is extended after extending to rubber layer, then in parallel to two Side extends, and forms the arcuate segments concentric with inner ring.

3. flexural pivot as claimed in claim 2, which is characterized in that be additionally provided with hollow area at the center of rubber layer, hollow area is in arc Shape structure, it is concentric with inner ring.

4. flexural pivot as claimed in claim 3, which is characterized in that at least the arcuate segments or the hollow area one end or Person both ends are equipped with energy-absorbing area, and the aperture in energy-absorbing area is greater than the face height of hollow area.

5. articulated system, including side arm, after-frame connect the turntable bearing of side arm and after-frame, which is characterized in that in the front end of side arm It is connected separately with flexural pivot described in Claims 1-4 with the rear end of after-frame, car body is fastened by bracket and mandrel；Described The rear portion of after-frame has a connection frame, and flexural pivot is installed on the connection frame, and the both ends of connection frame are connected separately with hydraulic cylinder, liquid The other end of cylinder pressure is connected with side arm respectively, positioned at the two sides of turntable bearing.

6. articulated system as claimed in claim 5, which is characterized in that be equipped with lug on the side arm, lug, which is distributed in, to be turned The two sides that dish axle is held offer through-hole on lug；It is respectively equipped with connecting plate at the both ends of the connection frame, is offered on connecting plate Through-hole.

7. articulated system as claimed in claim 6, which is characterized in that the lug positioned at the same side of the side arm is along Vertical Square To pairs of distribution.

8. articulated system as claimed in claim 5, which is characterized in that the connecting plate positioned at connection frame the same side is from vertical direction Distribution in pairs, wherein having groove in the left and right sides of after-frame, the depth of groove is more than or equal to the cylinder diameter of hydraulic cylinder.

9. such as the described in any item articulated systems of claim 5 to 8, which is characterized in that be equipped on the side arm or after-frame Cavity, center line symmetrical distribution of the cavity relative to articulated system.

10. articulated system as claimed in claim 5, which is characterized in that connect respectively in the end of the side arm and the after-frame It is connected to and is in collinear 3 flexural pivots, the center of intermediate flexural pivot and turntable bearing is on same straight line.