CN214401228U

CN214401228U - Longitudinal seamless expansion device of suspension type monorail track beam

Info

Publication number: CN214401228U
Application number: CN202022328683.7U
Authority: CN
Inventors: 赵晓梅; 马骉; 吴琰; 刘晓銮; 江震
Original assignee: Shanghai Municipal Engineering Design Insitute Group Co Ltd
Current assignee: Shanghai Municipal Engineering Design Insitute Group Co Ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-10-15
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a vertical seamless telescoping device of suspension type single track roof beam, be applicable to the continuous track roof beam of large-span or the continuous track roof beam of many strides, this telescoping device of its characterized in that includes the fixed plate of fixed mounting at expansion joint both sides track beam ends portion, and a plurality of installs the fly leaf between two fixed plates, establish the slant slide between fixed plate and adjacent fly leaf and two adjacent fly leaves, through the relative slip along the slant slide, make the fly leaf along lateral shifting, the track roof beam is along longitudinal movement, thereby realize the change of the vertical flexible volume of roof beam seam. The utility model provides a large-span continuous track roof beam or many in the suspension type single track traffic big deflection telescoping device's a structural style solves the beam-ends simultaneously and crosses the problem that the seam driving is not smooth and straight-forward. The movable plate can be manufactured, processed and installed in an modularized mode, and rapid construction is facilitated.

Description

Longitudinal seamless expansion device of suspension type monorail track beam

Technical Field

The utility model relates to a seamless telescoping device of modulization of suspension type single track roof beam belongs to the bridge engineering field.

Background

The suspended monorail transit has the advantages of high space utilization rate, small occupied area, strong line adaptability, short engineering period and the like, and can well meet the requirements of medium and small transportation volume city tourism and commuting traffic. The vehicle is suspended below the track beam, and the track beam is supported on the pier through a pin shaft or a support.

The rail beam bottom plate is directly used as a sliding surface of a vehicle and has a structure of 'beam-rail combination'. Under the action of using loads such as temperature, braking force and the like, the width of a beam seam at the end part of the adjacent track beam can be changed in a telescopic mode, and a telescopic device needs to be arranged at the end part of the track beam. Due to the structural characteristic of 'beam-rail integration', the overlarge gap width can cause the vehicle to generate obvious vibration and noise when passing the gap, and the stability and the comfort of driving are influenced. Therefore, the control of the width of the joint of the beam end expansion device is especially important for improving the stability and the comfort of the suspended monorail travelling crane.

The existing expansion device of the suspension type track beam comprises a seamless type expansion device, a comb plate type expansion device, a seamless type expansion device and a comb plate combined type expansion device, wherein when the expansion of a finger beam seam changes, the width of a gap between adjacent plates is unchanged and is close to a seamless structure, and the driving smoothness of the form is better. However, the existing expansion devices are all suspension type single-rail expansion devices aiming at common span, and are not suitable for large-deformation expansion joints of large-span beams or multi-span continuous beams.

The utility model provides a seamless formula telescoping device of modulization is applicable to the large deflection expansion joint of the continuous track roof beam of large-span or the continuous roof beam of multispan in suspension type single track traffic.

SUMMERY OF THE UTILITY MODEL

The utility model provides a seamless telescoping device of modulization of suspension type monorail track roof beam to satisfy the flexible demand of warping of large-span continuous track roof beam or the continuous track roof beam-ends of many strides among the suspension type monorail transit, and improve ride comfort and travelling comfort when the vehicle is gone through the seam.

The utility model discloses the purpose can be realized through following technical scheme: the utility model provides a seamless telescoping device of modulization of suspension type single track roof beam, be applicable to the continuous track roof beam of large-span or the continuous track roof beam of many strides, this telescoping device of its characterized in that includes the fixed plate of fixed mounting at expansion joint both sides track beam ends portion, and the fly leaf of a plurality of installation between two fixed plates, fixed plate and adjacent fly leaf, and establish the slant slide between two adjacent fly leaves, fixed plate and adjacent fly leaf, and form sliding connection through the slant slide between two adjacent fly leaves, through the relative slip along the slant slide, make the fly leaf along lateral shifting, the track roof beam is along longitudinal movement, thereby realize the change of the vertical flexible volume of beam joint.

Furthermore, the fixed plates are respectively fixed on the bottom plate of the track beam, the movable plate is placed on the bottom plate of the track beam, and a cushion block made of low-friction elastic material is arranged between the bottom of the movable plate and the bottom plate of the track beam. Because the bottom of the movable plate can slide with the bottom plate of the track beam, a cushion block made of low-friction elastic material is arranged between the bottom of the movable plate and the bottom plate of the track beam, so that the beam seam can freely stretch and retract.

Furthermore, a transverse limiting block is arranged on the inner side of the rail beam bottom reinforcing plate, so that the moving range of the movable plates is restricted within the width range of the rail beam bottom plate, and the transverse limiting block can cooperate with the transverse movement of each movable plate.

Furthermore, the plate surface of each movable plate is in an isosceles trapezoid shape, the front span fixing plate and the rear span fixing plate are provided with inclined edges corresponding to the movable plates, and the inclined slide ways are arranged at the inclined edge positions of the front span fixing plate, the rear span fixing plate and the movable plates.

Further, the inclined slideway is characterized in that a protruding part is arranged at the bottom of the side of one of the adjacent plates, and a corresponding groove part is arranged at the corresponding position of the top of the other one of the adjacent plates, so that the protruding part can slide in a track formed by the recessed part.

Furthermore, the oblique slideway is characterized in that a pin bolt hole is formed in the side of one of the adjacent plates, a pin bolt is fixed in the pin bolt hole, a long-strip-shaped sliding groove is formed in the side of the other of the adjacent plates along the oblique edge, and the pin bolt is positioned in the sliding groove of the other plate, so that the sliding groove of the other plate can slide obliquely along the pin bolt.

The number (be no less than 2) of fly leaf can be selected according to flexible volume demand to adjacent board, can satisfy the operation requirement at big deflection expansion joint, and fly leaf and fixed plate provide vertical support by the track beam bottom plate. When the beam joint stretches and retracts, the longitudinal joint width between the plates is unchanged, the plurality of slide joints are arranged, the adaptability to the torsional deformation of the beam end, the transverse break angle of the beam end, the vertical break angle deformation and the like is stronger, and the smoothness and the comfort of driving can be obviously improved.

Further, when the beam gap of track roof beam is vertical flexible the change, two sloping edges of fly leaf remove along the slide for the whole lateral shifting of fly leaf, its characteristics are as follows: 1) when the structure makes the beam joint of the track beam change in a telescopic manner, the width of the bevel edge joint connected with the adjacent plates is not changed, and the width of the joint only needs to meet the installation requirement of components, and is close to a seamless plate in use. 2) The movable plates are positioned in the action width range of the vehicle travelling wheels under the conditions of maximum seam width and minimum seam width, so that the wheels are prevented from being empty.

Compared with the prior art, the utility model discloses the advantage lies in:

1. the requirement of automatic stretching deformation of the large-deformation stretching device under the use load is met. Because each movable plate can only transversely move within the action width range of the wheel and the variation of the corresponding beam gap is limited, the single movable plate form can only be suitable for the beam gap of a common small-and-medium-span track beam. The utility model discloses a modular polylith fly leaf device can satisfy the expansion joint deformation requirement of long span or multi-span continuous beam.

2. For a large-span track beam or a multi-span continuous track beam, the modular seamless expansion device of the utility model has a plurality of slide seams, has stronger adaptability to beam end torsional deformation, beam end transverse folding angle, vertical folding angle deformation and the like, and improves the stability and comfort level of a travelling crane;

3. the modular expansion joint can select reasonable movable plates according to actual requirements, and the movable plates can be manufactured, processed and installed in a modular mode, so that rapid construction is facilitated.

4. The limiting block of the bottom plate on the opening side can restrict the moving range of the movable plates within the width range of the bottom plate and can cooperate with the transverse movement of each movable plate.

Drawings

Fig. 1 is a schematic cross-sectional view of the mounting fixture end plate of the present invention.

Fig. 2 is a schematic cross-sectional view of the movable plate for mounting according to the present invention.

Fig. 3 is a schematic plan view of the modular expansion device of the present invention in a minimum slit width state (2 movable plates).

Fig. 4 is a schematic plan view of the modular expansion device of the present invention (2 movable plates) in the maximum slit width state.

Fig. 5 is a schematic plan view of the modular expansion device of the present invention in the maximum slit width state (3 movable plates).

Fig. 6 is a schematic cross-sectional view of the slide way with the plate end L-shaped structure according to the present invention.

Fig. 7 is a schematic cross-sectional view of the slide way of the present invention in the form of a pin.

Fig. 8 is a schematic plan view of the present invention in the form of a pin and bolt slide.

Fig. 9 is a schematic cross-sectional view of the lateral limiting block of the movable plate of the present invention.

Detailed Description

The features of the invention are explained in further detail below by way of example with reference to the accompanying drawings:

referring to fig. 1, the symbols in the figure are: the track beam web 1, the track beam bottom plate 2, the track beam bottom plate 3 of putting more energy into, track beam end web reinforcing plate 11, track beam end bottom plate reinforcing plate 12, telescoping device comprise fixed plate 4, first fly leaf 51 and second fly leaf 52, slide 6, low friction hinders elastic material cushion 7, horizontal stopper 8.

As shown in the figure, the track roof beam is including the track web 1 that is located both sides, the outside of track web 1 still is equipped with track beam end web reinforcing plate 11, track beam web 1 bottom is equipped with the track beam bottom plate 2 that extends to track beam central line direction, 2 tip of track beam bottom plate that stride around are equipped with track beam bottom reinforcing plate 12 respectively, two fixed plates 4 are installed on the track beam bottom reinforcing plate 12 that stride around through the bolt respectively, first fly leaf 51, second fly leaf 52 install on track beam bottom reinforcing plate 12 through low friction resistance elastic material cushion 7, the fixed plate, connect through oblique slide 6 between the adjacent two in the fly leaf. The plate surface of each movable plate is isosceles trapezoid, the fixed plate is provided with a bevel edge corresponding to the movable plate, and the oblique slide way is arranged at the bevel edge positions of the fixed plate and the movable plate. The first movable plate is provided with an upper bottom with smaller length towards the side of the web plate of the track and a lower bottom with larger length towards the side of the central line of the track; the second movable plate is a lower bottom with a larger length toward the web side of the rail, and an upper bottom with a smaller length toward the centerline side of the rail.

The oblique slideway 6 is a structure for ensuring the relative movement of the adjacent plates along the oblique edge. The structure of the diagonal chute may take a variety of forms. The first method is as follows: as shown in FIG. 6, the inclined edges of the adjacent plates are formed in a matched regular L-shaped and inverted L-shaped configuration, i.e. the bottom of the side of one of the adjacent plates is provided with a convex portion, and the top of the other plate is provided with a corresponding concave portion at a corresponding position, so that the convex portion can slide in the track formed by the concave portion. The second method comprises the following steps: as shown in fig. 7 and 8, the fixed plate 4 and the rail beam bottom plate reinforcing plate 12 are fixed ends, the fixed plate and the rail beam bottom plate reinforcing plate are provided with pin holes 21, the pin bolts are fixedly arranged on the fixed ends, the movable plate is a sliding end, a sliding groove 22 is arranged along the inclined edge, the sliding groove of the movable plate is sleeved on the pin bolt, and when the beam seam longitudinally extends and retracts, the sliding groove 22 on the movable plate slides along the inclined edge to drive the movable plate to move left and right.

Above two kinds of modes, under the prerequisite of guaranteeing that the fly leaf freely slides along the slant, can increase and decrease spacing bolt according to actual need.

The reinforcing plate 12 is provided with a stopper 8 on the lateral opening side. The stopper 8 restricts the moving range of the first plate 51 and the second plate 52 within the width range of the base plate, and can cooperate with the lateral movement of the first plate 51 and the second plate 52.

The case when the beam gap is widened will be described below by comparing fig. 3 and 4. When the distance of the track beam is increased, longitudinal displacement in the direction of separating occurs between the front and rear bottom-spanning reinforcing plates 12 and the fixed plate 4, the gap is increased, at this time, due to the connection of the slide ways, the first movable plate 51 and the second movable plate 52 move along the slide ways 6, the movable plates move integrally along the transverse direction, wherein the first movable plate 51 moves towards the web side, and the second movable plate 52 moves towards the central line side of the track beam, so that the effect of increasing the beam gap is achieved. Conversely, when the beam gap is narrowed, the first movable plate 51 and the second movable plate 52 are displaced in opposite directions.

Fig. 3 and 4 are plan views showing the minimum and maximum gap widths between the front and rear cross-rail beams for 2 movable plates; fig. 5 is a plan view of the maximum slot width of 3 movable plates. In the process of changing the gap width, the movable plate is always positioned in the range of the action width B of the vehicle travelling wheel so as to ensure that the wheels run on the movable plate or the fixed plate of the expansion joint without the phenomenon of falling off.

When the width of the beam gap changes, the end of the rail beam is longitudinally displaced, and due to the connection of the slide way, the inclined edges of the first movable plate 51 and the second movable plate 52 move along the slide way, and the movable plates integrally move along the transverse direction. Therefore, when the beam seam of the track beam is changed in a telescopic mode, the width of the bevel edge seam where the adjacent plates are connected is not changed, the width of the seam only needs to meet the installation requirement of a component, and the seam is close to a seamless plate in use.

Seamless telescoping device of modulization, can satisfy the continuous track roof beam of large-span and move a vehicle smoothly problem of many strides continuous track roof beam when the seam is crossed to the beam-ends, avoid the train to produce violent vibrations because of the clearance in marcing. The structural form has large deformation and expansion amount, is convenient to install, and obviously improves the stability and the comfort of the travelling crane. Furthermore, but modulization expansion joint modulization manufacturing, processing and installation, be favorable to the rapid construction.

It is to be understood that the above description and illustrations are exemplary only and are not intended to limit the present disclosure, application, or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention is intended to include any embodiments that fall within the foregoing description and the appended claims.

Claims

1. The utility model provides a vertical seamless telescoping device of suspension type single track roof beam, its characterized in that this telescoping device includes the fixed plate of fixed mounting at expansion joint both sides track beam ends portion to and a plurality of installs the fly leaf between two fixed plates, establish the slant slide between fixed plate and adjacent fly leaf and two adjacent fly leaves, form sliding connection through the slant slide between fixed plate and adjacent fly leaf and two adjacent fly leaves.

2. The longitudinal seamless extension device of a suspended monorail track beam as claimed in claim 1, wherein the fixed plates are fixed on the track beam bottom plate respectively, the movable plate is placed on the track beam bottom plate, and a low friction elastic material pad is arranged between the bottom of the movable plate and the track beam bottom plate.

3. The longitudinal seamless extension device of a suspended monorail track beam as defined in claim 1, wherein a transverse limiting block is provided inside the reinforcement plate of the track beam bottom so as to restrict the moving range of the movable plate within the width of the track beam bottom plate.

4. The longitudinal seamless expansion device of a suspended monorail track beam as claimed in claim 1, wherein the plate surface of each movable plate is isosceles trapezoid, the front span fixing plate and the rear span fixing plate have inclined edges corresponding to the movable plates, and the oblique slide ways are arranged at the positions of the inclined edges of the front span fixing plate, the rear span fixing plate and the movable plates.

5. A longitudinally seamless telescoping device for a suspended monorail track beam as defined in claim 1, wherein said diagonal tracks are formed by a protrusion on the bottom of one of the adjacent plates at the side and a corresponding recess on the top of the other of the adjacent plates at a corresponding location so that the protrusion slides within the track formed by the recess.

6. A longitudinally seamless telescopic device for a suspended monorail track beam as defined in claim 1, wherein said oblique slideway is formed by a pin hole at the side of one of the adjacent plates and an elongated runner at the side of the other of the adjacent plates along the oblique edge, the pin passing through the pin hole of one of the plates and sliding along the runner in the runner hole of the other plate.