CN216040432U - Bidirectional track elevation adjusting device - Google Patents

Abstract

The utility model discloses a bidirectional track elevation adjusting device, which comprises: the adjustable displacement type vibration damping device comprises an adjustable displacement cushion block, wedge blocks, a chute basin, a tensioner and a track, wherein a fastener is installed on the side surface of the chute basin, a damping sheet is installed on the bottom surface of the chute basin, two groups of wedge blocks are arranged in the chute basin, and the chute basin is connected with the wedge blocks in a sliding mode; the two groups of wedge blocks are respectively provided with a convex structure and a concave structure which are correspondingly crossed and complemented, and the inclined planes of the convex structures of the two groups of wedge blocks are oppositely arranged; the wedge-shaped block is provided with a through hole, and the tensioner is arranged in the through hole; the adjustable displacement cushion block is arranged on the sliding groove basin, and the track is arranged on the adjustable displacement cushion block and fixedly connected through a track fastener; and the width of the sliding groove basin along the top surfaces of the two sides of the track is larger than the width of the sliding groove basin perpendicular to the top surfaces of the two sides of the track. The bidirectional track elevation adjusting device can adjust the elevation of the track surface bidirectionally (heightening or lowering) according to the requirement in the whole service life cycle of the track, saves a large amount of human, material and machine investment, and saves time and labor.

Description

Bidirectional track elevation adjusting device

Technical Field

The utility model belongs to the technical field of rail engineering, and particularly relates to a bidirectional rail elevation adjusting device.

Background

With the rapid development of rail transit in China, local rail sections under various geological conditions, basic conditions, environmental conditions and other factors may have integral settlement or differential settlement which does not meet the operation and maintenance requirements, and the settled rail sections need to be lifted in order to ensure the safe running of trains. Meanwhile, because roadbed fillers and foundation soil body in the ballastless track structure expand or temperature stress is generated between the track bed plate and the supporting layer, track upwarp diseases occur successively, and daily maintenance of the track surface elevation is difficult.

At present, a common ballast track lifting mode is that ballast stones are supplemented below a sleeper to lift the elevation of the sleeper so as to lift the elevation of a rail surface; for ballastless tracks, a common method is to directly lift the track and fill the gap between the track and the sleeper by grouting. The track lifting mode is complex in construction, time-consuming and labor-consuming. Grouting operation needs special instruments and equipment and operation teams, and daily maintenance cost is increased.

When the ballastless track has a small degree of upwarp damage, the fastener base plate is mostly adjusted in a mode of adjusting the fastener base plate, and when the ballastless track has a large degree of upwarp damage, the fastener base plate can not be adjusted almost, and the fastener base plate is often processed in a mode of speed-limited operation or dismantling and rebuilding.

If the arch-up disease and the foundation settlement of the ballastless track occur simultaneously, different positions of the local track section need to be raised or lowered, the existing single method is difficult to process, and the dismantling and rebuilding cost is high.

The construction of the ballast stone is supplemented manually, and the construction precision and efficiency are based on the experience of constructors. Ballast stones are added or removed below the sleeper, so that the construction elevation is difficult to control, the construction difficulty is increased to a certain extent, and the construction period is prolonged. The large-span railway bridge should not adopt the track board because the adjustment of rail surface elevation is big, has generally laid tiny fragments of stone, stone adjustment rail surface elevation through supplementing tiny fragments of stone, leads to the increase of bridge floor dead load weight to increase the bridge cost by a wide margin, consequently restricted the span of bridge even.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a bidirectional track elevation adjusting device which can conveniently and rapidly adjust the height of a track in a bidirectional way, so that the problems of integral settlement or uneven settlement of a local track section and an arch-up disease of a ballastless track are solved; the elevation is adjusted in two directions (heightening or lowering) in the whole life cycle of the track, so that a large amount of daily maintenance investment is saved, and time and labor are saved; and the possibility of replacing the ballast with the ballastless track by the track plate and replacing the ballasted track with the ballastless track is provided for the large-span railway bridge.

In order to achieve the purpose, the utility model adopts the following technical scheme: a bi-directional track elevation adjustment apparatus comprising: the adjustable displacement type vibration damping device comprises an adjustable displacement cushion block, wedge blocks, a chute basin, a tensioning device, a rail and a baffle, wherein a fastener is installed on the side surface of the chute basin, a damping sheet is installed on the bottom surface of the chute basin, two groups of wedge blocks are arranged in the chute basin, and the chute basin is connected with the wedge blocks in a sliding mode; the two groups of wedge blocks are respectively provided with a convex structure and a concave structure which are correspondingly crossed and complemented, and the inclined planes of the convex structures of the two groups of wedge blocks are oppositely arranged; the wedge-shaped block is provided with a through hole, and the tensioner is arranged in the through hole; the adjustable displacement cushion block is arranged on the sliding groove basin, and the track is arranged on the adjustable displacement cushion block and fixedly connected through a track fastener; the width of the chute basin along the top surfaces of the two sides of the track is larger than the width of the chute basin vertical to the top surfaces of the two sides of the track; the baffle is arranged around the adjustable displacement cushion block, the upper end of the baffle is detachably connected with the upper surface of the adjustable displacement cushion block, and the lower end of the side surface of the baffle is arranged on the fastener;

the adjustable displacement cushion block comprises a horizontal top plate and a triangular bump arranged on the lower portion of the horizontal top plate, the triangular bump is located between two sets of wedge blocks, the slopes of two slopes of the triangular bump are the same as those of the two sets of wedge blocks, 3 notches are sequentially formed in the triangular bump, the notches on two sides are attached to the top of the sliding groove basin, and the tensioning device penetrates through the middle notch.

Furthermore, the upper portion of the wedge is provided with a wedge upper panel, the wedge upper panel is arranged on a notch of the wedge convex structure, and the bottom of the wedge is provided with a wedge lower panel.

Furthermore, the bottom of the wedge block is provided with a notch matched with the peripheral flange of the sliding groove basin, and the wedge block is embedded into the sliding groove basin through the notch and the flange.

Further, the tensioning device is a high-strength bolt tensioning system.

Furthermore, a platform is arranged on one group of bulges of the wedge-shaped block, and the platform is attached to the bottom of the adjustable displacement cushion block located at the lowest position.

Furthermore, the adjustable displacement cushion block, the baffle plate and the fastener are fixedly connected through bolt and screw holes.

Compared with the prior art, the utility model has the beneficial effects that:

(1) through setting up adjustable piece such as adjustable displacement cushion, wedge, spout basin, when the track subsides to appear there is the adjustment demand, through controlling wedge position in the spout basin, realize the lift of adjustable displacement cushion, and then realize the track elevation adjustment in a flexible way. The bidirectional track elevation adjusting device can conveniently adjust the track elevation in the whole life cycle of the track, and simultaneously saves a large amount of daily operation and maintenance investment, and is time-saving and labor-saving;

(2) the two groups of wedge blocks in the bidirectional track elevation adjusting device are respectively provided with the corresponding crossed and complementary convex structures and concave structures, so that under the condition that the length of the chute basin is smaller, the stroke of the wedge blocks is increased, and the lift distance of the adjustable displacement cushion block is further increased;

(3) the fastener is arranged in the bidirectional track elevation adjusting device, so that the connection of the chute basin and a sleeper or a track plate of a track is realized, and the installation is convenient;

(4) in order to reduce the frictional resistance between the wedge-shaped block and the adjustable displacement cushion block and between the wedge-shaped block and the sliding groove basin when the wedge-shaped block slides and have the durability of a sliding surface, the plastic alloy MGB plate is used as a sliding surface material, and the wedge-shaped sliding groove has the characteristics of small friction coefficient, high bearing capacity, strong ageing resistance, self lubrication, no maintenance and the like.

Drawings

FIG. 1 is a schematic three-dimensional structure of a bidirectional track elevation adjustment device according to the present invention, wherein A in FIG. 1 is a schematic structural view of the bidirectional track elevation adjustment device applied on a track, and B in FIG. 1 is a schematic structural view of the bidirectional track elevation adjustment device;

FIG. 2 is a front view of the bi-directional track elevation adjustment apparatus of the present invention;

FIG. 3 is a side view of the bi-directional track elevation adjustment apparatus of the present invention;

FIG. 4 is a top view of the bi-directional track elevation adjustment apparatus of the present invention;

FIG. 5 is a schematic structural view of an adjustable displacement spacer and wedge of the present invention;

FIG. 6 is a schematic view showing the sequence of installation of the components in the bidirectional track elevation adjustment apparatus of the present invention;

the labels in the figures are:

1. an adjustable displacement cushion block; 1-1, a baffle; 2. a wedge block; 2-1, a wedge-shaped block upper panel; 2-2, a wedge-shaped block lower panel; 3. a chute basin; 3-1, fastening pieces; 3-2 damping sheets; 4. a tensioner; 5. a track; 5-1, a rail fastener.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 a, the present invention provides a bidirectional track elevation adjustment apparatus for use on a track, and fig. 1B and fig. 2 to 4 are schematic structural diagrams of the bidirectional track elevation adjustment apparatus, including: the adjustable displacement type combined sliding chute comprises an adjustable displacement cushion block 1, wedge blocks 2, a sliding chute basin 3, a tensioner 4, a rail 5 and a baffle 1-1, wherein a fastener 3-1 is installed on the side surface of the sliding chute basin 3 and fixedly connected through a bolt screw hole, a damping sheet 3-2 is installed on the bottom surface of the sliding chute basin 3, two groups of wedge blocks 2 are arranged in the sliding chute basin 3, and the wedge blocks 2 are connected in a sliding mode; as shown in fig. 5, one side of each of the two sets of wedges 2 is an inclined surface, the two sets of wedges 2 are respectively provided with a corresponding and cross-complementary convex structure and concave structure, and the inclined surfaces of the convex structures of the two sets of wedges 2 are arranged oppositely; the wedge-shaped block 2 is provided with a through hole, the stretching device 4 is arranged in the through hole and is used for the stretching device 4 to pass through, and then the pushing of the wedge-shaped block 2 is realized through the stretching device 4, and the stretching device 4 is a high-strength bolt stretching system. The adjustable displacement cushion block 1 is arranged on the sliding groove basin 3, and the track 5 is arranged on the adjustable displacement cushion block 1 and is fixedly connected through a track fastener 5-1; the width of the chute basin 3 along the top surfaces of the two sides of the track 5 is larger than the width of the chute basin 3 vertical to the top surfaces of the two sides of the track 5; the baffle 1-1 is arranged around the adjustable displacement cushion block 1, the upper end of the baffle 1-1 is detachably connected with the upper surface of the adjustable displacement cushion block 1, the lower end of the side surface of the baffle 1-1 is arranged on the fastening piece 3-1, the adjustable displacement cushion block 1, the baffle 1-1 and the fastening piece 3-1 are fixedly connected through bolt and screw holes, and the baffle 1-1 is a stainless steel plate piece. When the track has settlement and needs to be adjusted, the lifting of the adjustable displacement cushion block is realized by controlling the position of the wedge block in the chute basin, and then the track elevation adjustment is flexibly realized. The device can be used for conveniently adjusting the elevation of the track in the whole life cycle of the track, and simultaneously saves a large amount of daily operation and maintenance investment, and is time-saving and labor-saving.

As shown in fig. 5, the adjustable displacement cushion block 1 comprises a horizontal top plate and a triangular convex block arranged at the lower part of the horizontal top plate, two sides of the triangular convex block are two inclined planes, the triangular convex block is positioned between two groups of wedge blocks 2, and the inclination of the two inclined planes of the triangular convex block is the same as that of the two groups of wedge blocks 2, so that the inclined planes of the triangular convex block and the inclined planes of the wedge blocks 2 can be tightly attached, 3 notches are sequentially arranged on the triangular convex block, the notches on the two sides can be tightly attached to the top of the chute basin 3, the stretching device 4 penetrates through the middle notch, horizontal force is applied to the stretching device 4 to drive the wedge blocks 2 to slide in the chute basin 3, further adjusting the distance between the two groups of wedge blocks 2, the inclined surfaces of the adjustable displacement cushion blocks 1 and the inclined surfaces of the wedge blocks 2 slide relatively, and then the adjustable displacement cushion block 1 is lifted or lowered, thereby realizing the function of adjusting the elevation of the cushion block.

For example 5, the upper part of the wedge block 2 is provided with a wedge block upper panel 2-1, the wedge block upper panel 2-1 is arranged on a notch of a convex structure of the wedge block 2, the bottom of the wedge block 2 is provided with a wedge block lower panel 2-2, and the wedge block upper panel 2-1 and the wedge block lower panel 2-2 are all engineering plastic alloy MGB plates and have the characteristics of small friction coefficient, large bearing capacity, strong ageing resistance, self lubrication, maintenance-free property and the like. The bottom of wedge 2 is equipped with the notch with 3 mutual adaptations of flange all around of spout basin, and inside wedge 2 passed through notch and 3 insets of spout basins of flange, can realize that wedge 2 slides for 3 of spout basins. One group of bulges of the wedge-shaped block 2 is provided with a platform which is tightly attached to the bottom of the adjustable displacement cushion block 1 at the lowest position.

Fig. 6 is a schematic diagram of an installation sequence of components in the bidirectional track elevation adjustment device of the present invention, where the installation process of the bidirectional track elevation adjustment device is as follows: after the existing track of the damaged section is disassembled, drilling holes at the designed positions of sleepers or track plates on the track 5, and installing fasteners 3-1; assembling a wedge block 2, a wedge block upper panel 2-1 and a wedge block lower panel 2-2; and (3) installing a chute basin 3, putting the assembled wedge block 2 into the chute basin, and checking whether the wedge block 2 can move smoothly. Finally, the adjustable displacement cushion block 1 and the baffle 1-1 are installed after penetrating through the tensioner 4, the track fastener 5-1 and the track 5 are installed, the bolt of the tensioner 4 is twisted, the adjustable displacement cushion block 1 reaches a preset height, the bolt and the nut which are connected with the baffle 1-1, the adjustable displacement cushion block 1 and the chute basin 3 are screwed after the adjustable displacement cushion block 1 is in place, and the device is locked, so that the installation of the device is completed.

Example 1

For a ballast (ballastless) track, a track section of the device is set before operation, bolt holes required for installing fasteners 3-1 are reserved on sleepers (track plates), and the device is installed after the sleepers (track plates) are laid in place, specifically:

the method comprises the steps of firstly, cleaning sundries on a mounting surface of a sleeper (track slab), processing a collision depression caused by construction, then mounting fasteners 3-1 on the sleeper (track slab), mounting and flattening damping sheets 3-2 between two groups of fasteners 3-1, mounting a chute basin 3 on the damping sheets 3-2, pressing and compacting the damping sheets 3-2, and connecting the fasteners 3-1 and the chute basin 3 after the chute basin 3 is in place. In the process of installing the fastening piece 3-1, the damping piece 3-2 and the chute basin 3, the required bolt can not be screwed to be locked so as to facilitate fine adjustment among all the parts, when the installation of the fastening piece 3-1, the damping piece 3-2 and the chute basin 3 is confirmed to be correct, the connecting bolt of the fastening piece 3-1 and a sleeper (rail plate) is screwed, the connecting bolt of the fastening piece 3-1 and the chute basin 3 is screwed, and the installation of the fastening piece 3-1, the damping piece 3-2 and the chute basin 3 is completed.

And secondly, installing the upper wedge-shaped block panel 2-1 and the lower wedge-shaped block panel 2-2 to the corresponding positions of the wedge-shaped blocks 2 in the back field. The installation of wedge upper panel and wedge lower panel needs firm, and the adhesive that adopts needs ageing-resistant, resistant time, effective for a long time. After sundries in the chute basin 3 are cleaned up, the wedge-shaped block 2 pasted with the panel is loaded into the chute basin in a posture that the long edge of the wedge-shaped block is vertical to the track. The vertical surface of the wedge-shaped block 2 abuts against the inner wall of the chute basin 3 as an initial position. And (3) pushing the two groups of wedge blocks 2 to check whether the sliding is smooth, whether the outward protrusion and the inward recess are staggered without resistance, and whether the lower panel 2-2 of the wedge block can scrape and fall off. The checking method comprises the steps of firstly slowly pushing one group of wedge blocks 2 to the extreme position of the opposite end, then slowly pushing the other group of wedge blocks 2 to the extreme position of the opposite end, and resetting the wedge blocks 2 to the initial position after checking that no error exists. Finally, the steel wire passes through the tensioning device 4 and is provided with a matched nut backing plate.

And thirdly, correspondingly arranging the adjustable displacement cushion blocks 1 between the two groups of wedge blocks 2, and tightly attaching the notches on the two sides of the lower ends of the adjustable displacement cushion blocks 1 to the top surface of the wider outer edge of the chute basin 3 to serve as initial positions. Slowly turning the nut of the tension device 4, pushing the wedge block 2, observing whether the adjustable displacement cushion block 1 is stably lifted or not, and resetting the adjustable displacement cushion block 1 to the initial position after confirming that no error exists. And finally, installing a baffle plate 1-1 and bolts for connecting the baffle plate 1-1, the adjustable displacement cushion block 1 and the chute basin 3. And (4) referring to the steps, lifting the adjustable displacement cushion block 1 again, checking whether the lifting is smooth, and locking the four end angle bolts of the adjustable displacement cushion block 1 after the correctness is confirmed. And finally, installing a rail fastener to finish the installation of the device.

For the upper arch defect of the ballastless track, the height adjustment and reduction of the track is increased by pre-jacking the adjustable displacement cushion block 1.

For the track section which is not provided with the device before operation and needs to be additionally provided with the device during operation and maintenance, the installation method can refer to the method in the embodiment 1, and the difference is that for the track section which is additionally provided with the device, the installation is carried out after the corresponding track is detached.

Example 2

The bidirectional track elevation adjusting device is applied to a long-span railway bridge scene.

Because large-span railway bridge is because the adjustment of rail surface elevation is big, should not adopt the track board, generally has laid the tiny fragments of stone, adjusts the rail surface elevation through addding the tiny fragments of stone, leads to the increase of bridge floor dead load weight to increase the bridge cost by a wide margin, consequently restricted the span of bridge even. By combining the device with the track plate, the ballastless track is laid on the bridge, and the dead load weight on the bridge can be greatly reduced. When the height of the rail surface needs to be adjusted, the device can be sequentially adjusted, and then the elevation of the rail surface is adjusted.

The bidirectional track elevation adjusting device is installed on a large-span bridge, and the settlement of the bridge and the differential settlement between the bridge and the abutment are considered. Based on the installation method in the embodiment 1, when the adjustable displacement cushion block 1 is installed, the adjustable displacement cushion block should be in a jacking state, and a jacking value should be determined through calculation. The adjustable displacement cushion block 1 in the jacking state can continue jacking in the integral settlement area of the rail to raise the elevation of the rail surface; at the differential settlement position of the bridge head and the bridge abutment, the elevation of the adjustable displacement cushion block 1 can be adjusted up or down along the mileage according to the actually measured settlement value, so that the elevation curve of the rail surface is smoothly changed, and the operation state is optimized.

The large-span railway bridge adopting the bidirectional track elevation adjusting device increases the redundancy of the track elevation adjustment by design consideration differential settlement through realizing the track elevation pre-adjustment, and further provides space for reducing the construction and operation and maintenance costs.

For ballastless track sections with complex diseases, tracks at different positions in local areas may need to be heightened or lowered, and the problem can be effectively solved by adopting the differential settlement processing mode in embodiment 2.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may be made by those skilled in the art without departing from the principle of the utility model.

Claims (6)

1. A bi-directional track elevation adjustment apparatus, comprising: the device comprises an adjustable displacement cushion block (1), wedge blocks (2), a chute basin (3), a tensioner (4), a track (5) and a baffle (1-1), wherein a fastener (3-1) is installed on the side surface of the chute basin (3), a damping sheet (3-2) is installed on the bottom surface of the chute basin, two groups of wedge blocks (2) are arranged in the chute basin (3), and the chute basin (3) is connected with the wedge blocks (2) in a sliding manner; the two groups of wedge blocks (2) are respectively provided with corresponding and crossed complementary convex structures and concave structures, and the inclined planes of the convex structures of the two groups of wedge blocks (2) are arranged oppositely; the wedge-shaped block (2) is provided with a through hole, and the tensioner (4) is arranged in the through hole; the adjustable displacement cushion block (1) is arranged on the sliding groove basin (3), and the track (5) is arranged on the adjustable displacement cushion block (1) and is fixedly connected through a track fastener (5-1); the width of the chute basin (3) along the top surfaces at two sides of the track (5) is larger than the width of the chute basin (3) vertical to the top surfaces at two sides of the track (5); the baffle (1-1) is arranged around the adjustable displacement cushion block (1), the upper end of the baffle (1-1) is detachably connected with the upper surface of the adjustable displacement cushion block (1), and the lower end of the side surface of the baffle (1-1) is arranged on the fastener (3-1);

adjustable displacement cushion (1) include horizontal roof and set up in the triangle-shaped lug of horizontal roof lower part, the triangle-shaped lug is located between two sets of wedge (2), and two inclined plane inclinations of triangle-shaped lug are the same with the inclination of two sets of wedge (2), it has 3 notches to open in proper order on the triangle-shaped lug, and the notch of both sides is laminated with the top of spout basin (3), stretch-draw ware (4) run through the notch in the middle.

2. The bidirectional track elevation adjusting device as claimed in claim 1, wherein the upper part of the wedge block (2) is provided with a wedge block upper panel (2-1), the wedge block upper panel (2-1) is arranged on the notch of the convex structure of the wedge block (2), and the bottom of the wedge block (2) is provided with a wedge block lower panel (2-2).

3. The bidirectional track elevation adjusting device as claimed in claim 1, wherein the bottom of the wedge block (2) is provided with a notch which is matched with the flange around the chute basin (3), and the wedge block (2) is embedded into the chute basin (3) through the notch and the flange.

4. The bidirectional track elevation adjustment device of claim 1, wherein the tensioner (4) is a high-strength bolt tensioning system.

5. The device for adjusting the height of a bidirectional track as claimed in claim 1, wherein a platform is provided on one set of protrusions of the wedge block (2), and the platform is attached to the bottom of the adjustable displacement pad block (1) located at the lowest position.

6. The bidirectional rail elevation adjusting device of claim 1, wherein the adjustable displacement cushion block (1), the baffle plate (1-1) and the fastener (3-1) are fixedly connected through bolt and screw holes.

Images