阅读说明：本技术 一种双块式无砟轨道排架装置、其调节方法及其施工方法 (Double-block type ballastless track bent frame device, adjusting method and construction method thereof ) 是由 周丽 于 2020-06-11 设计创作，主要内容包括：本发明公开了一种双块式无砟轨道排架装置及其调节方法,包括轨排主体、一端活动连接于所述轨排主体端部的调节件、及抵近于所述轨排主体侧方的防护基础,所述调节件用于固定双列工具轨,所述调节件的另一端活动连接于所述防护基础上,所述调节件的两端可分别锁定于所述轨排主体和所述防护基础上,实现对轨排的横向宽度调节、高度调节和水平角度调节互不干扰。本发明还公开了一种双块式无砟轨道排架装置的施工方法,具备轨枕安装定位、轨道粗调、安装模板、轨道精调功能,可有效地简化作业程序,提高了施工效率。(The invention discloses a double-block ballastless track bent frame device and an adjusting method thereof, and the double-block ballastless track bent frame device comprises a track panel main body, an adjusting piece and a protective foundation, wherein one end of the adjusting piece is movably connected to the end part of the track panel main body, the protective foundation is close to the side of the track panel main body, the adjusting piece is used for fixing a double-row tool track, the other end of the adjusting piece is movably connected to the protective foundation, and two ends of the adjusting piece can be respectively locked on the track panel main body and the protective foundation, so that the transverse width adjustment, the height adjustment and the horizontal angle adjustment of the track panel are not interfered with each. The invention also discloses a construction method of the double-block ballastless track bent frame device, which has the functions of sleeper installation positioning, track rough adjustment, template installation and track fine adjustment, can effectively simplify the operation procedure and improve the construction efficiency.)

1. The utility model provides a two formula ballastless track framed bent devices, its characterized in that, including section of track main part, one end swing joint in the regulating part of section of track main part tip reaches to be close to the protection basis of section of track main part side, the regulating part is used for fixed biserial instrument rail, the other end swing joint of regulating part in on the protection basis, the both ends of regulating part can lock in respectively the section of track main part with on the protection basis.

2. The double block ballastless track rack assembly of claim 1, wherein the adjusting member comprises a sliding sleeve sliding on the end of the track panel main body, and a connecting arm;

the sliding sleeve is provided with a first sliding part connected with the track panel main body in a sliding mode and a connecting part used for connecting the connecting arm;

the first sliding part can slide and be locked at the end part of the track panel main body, one end of the connecting arm can slide and be locked at the connecting part, and the other end can slide and be locked on the protection foundation.

3. The double-block ballastless track bent device of claim 2, wherein a first sliding groove is formed in an end of the track panel main body, the track panel main body comprises a first screw rotatably connected to the first sliding groove and a first locking nut threadedly sleeved on the first screw, the first sliding portion slides in the first sliding groove, the first screw passes through the first sliding portion and is in threaded connection with the first sliding portion, a length direction of the first screw is identical to a length direction of the track panel main body, the first sliding portion can move along the length direction of the first screw by rotating the first screw, and the first locking nut locks a position of the first sliding portion on the first screw.

4. The double-block ballastless track bent device of claim 3, wherein the connecting portion is provided with a second chute, the connecting arm comprises an arm body, a sliding block slidably connected in the second chute, and a hinge shaft extending from the sliding block, one end of the arm body is hinged to the hinge shaft, and the other end of the arm body is connected to the protective foundation; the sliding sleeve comprises a second screw rod which is rotatably connected in the second sliding groove and a second locking nut which is sleeved on the second screw rod in a threaded manner, the length direction of the second screw rod is consistent with the length direction of the sliding sleeve, the position of the sliding block in the second sliding groove can be adjusted by rotating the second screw rod, and the position of the sliding block in the second sliding groove can be locked by rotating the second locking nut.

5. The double-block ballastless track bent device of claim 4, wherein the second screw extends from a bottom end of the second chute to an outside of an end of the second chute, and the second locking nut is threadedly engaged with the second screw outside the second chute;

and rotating the second screw rod to enable the sliding block to slide in the second sliding groove, and rotating the second locking nut to abut against the outer wall of the second sliding groove.

6. The double-block type ballastless track bent frame device of claim 4, wherein two second screws are rotatably connected in each second sliding chute, each screw has one end extending out of the second sliding chute, and one end of each second screw extending out of the second sliding chute is threadedly sleeved with the second locking nut;

and rotating the two second screw rods to respectively abut against the two side walls of the sliding block along the length direction of the second sliding chute, and rotating the second locking nut to abut against the outer wall of the sliding sleeve outside the second sliding chute so as to lock the position of the sliding block in the second sliding chute.

7. The double-block ballastless track bent device of claim 4, wherein the protective foundation has a vertical groove formed along a vertical direction, the arm body has a second sliding portion slidably connected in the vertical groove, the connecting arm further comprises a third screw rotatably connected in the vertical groove along the vertical direction, and a third locking nut threadedly fitted on the third screw, and the third screw passes through the second sliding portion and is threadedly connected with the second sliding portion;

the third screw rod is rotated to enable the second sliding portion to slide in the vertical groove, and the third locking nut is rotated to abut against the protection base outside the vertical groove so as to lock the height of the second sliding portion in the vertical groove.

8. The double block type ballastless track bent device of claim 7, wherein after the positions of the first sliding portion, the sliding block, and the second sliding portion are locked, respectively, the first sliding groove, the second sliding groove, and the vertical groove are coated with a filling layer.

9. An adjusting method of a double-block ballastless track bent device is characterized by comprising the following steps:

s41: rotating the first screw rod to enable the first sliding portion to move along the length direction of the first screw rod, and rotating the first locking nut to abut against the end portion, outside the first sliding groove, of the track panel main body so as to lock the position, on the first screw rod, of the first sliding portion, so that the transverse width of the track panel is adjusted;

s42: the second sliding part can slide along the vertical groove by rotating the third screw rod, and the third locking nut is rotated to the protective foundation outside the vertical groove so as to lock the height of the second sliding part in the vertical groove and complete the height adjustment of the tool rail;

s43: rotating the second screw to adjust the position of the sliding block in the second sliding groove, and rotating the second locking nut to abut against the sliding sleeve outside the second sliding groove to lock the position of the sliding block in the second sliding groove, so as to complete the adjustment of the horizontal angle of the track panel main body surface;

s44: filling the first chute, the second chute and the vertical slot.

10. A construction method of a double-block ballastless track bent frame device is characterized by comprising the following steps:

s1: cleaning a site, arranging a center line control pile and a mark pile, presetting a ballast bed reinforcing mesh, and installing a transverse template;

s2: laying a protection foundation;

s3: the method comprises the following steps of (1) separating sleepers and assembling a track panel main body, and roughly adjusting the position of the track panel main body by utilizing self-propelled paving and matching with a multifunctional electric control lifting appliance;

s4: binding a ballast bed reinforcing mesh, grounding and welding, and adjusting and locking the transverse width, the vertical height and the horizontal angle of the ballastless track bent device by using the adjusting method as claimed in claim 8;

s5: installing a longitudinal template, installing the longitudinal template in a groove of a bent support leg of the track panel, and fixing the transverse template at the bottom of the track panel by using a clamp;

s6: pouring concrete of a ballast bed, fixing the double blocks, and vibrating and plastering to form;

s7: and (5) curing, dismantling the track bent frame and entering circulating construction.

Technical Field

The invention belongs to the field of railway track buildings, and particularly relates to a double-block ballastless track bent frame device, an adjusting method and a construction method thereof.

Background

The traditional single-beam track bent frame is generally provided with four rectangular tube support beams, so that the distance between the support beams is fully enlarged, the construction operation space can be increased, the construction procedures of reinforcement binding, concrete pouring, concrete vibrating, concrete plastering and the like are greatly facilitated for constructors, the track bent frame is used for simulating a formal rail, and the positions of a double-block sleeper, a long-sleeper embedded sleeper and an elastic supporting block sleeper are accurately locked so as to ensure that the geometric shape and position of the formal rail are laid. The geometrical shape and position of the track comprise: gauge, track direction, elevation, level, rail base slope. The geometric shape and position determined by the track bent frame itself includes track gauge and track bottom slope, and other parameters of track direction, elevation, level and curve superelevation need to be adjusted by matching single or multiple elevation screw rods and track direction adjusters of the track bent frame system. The single-beam type track bent frame is widely applied to Lanxin second double lines, Daxiseofu, Guiguang high-speed railway, Jingfu railway, China and south channels and the like.

The invention relates to a method for solving the problem that ballastless track bent frames of double-block sleepers, long-sleeper embedded sleepers and elastic supporting block sleepers cannot be quickly and precisely adjusted and positioned, most of the current track bent frame equipment adopts a rectangular pipe frame with a single-beam structure, and the ultrahigh adjustment of the track direction, the elevation and the curve is realized on a joist, which is specifically represented as follows: the height of the track is adjusted up and down by adjusting the height adjuster on the supporting leg; the rail direction of the rail is transversely adjusted by rail direction locking devices at two sides of the fixed joist; the angle adjustment of the supporting legs and the joist is realized by screwing angle adjusting bolts, so that the curve superelevation of the track is adjusted.

However, as time goes on, the track bent frame for realizing the geometric position adjustment of the track gradually shows the defects of difficult positioning of rough laying of the track panel, repeated fine adjustment construction, large manual interference and the like because the transverse direction, the elevation and the like of the tool track are linked and can interfere with each other, when one parameter is adjusted, other parameters can change simultaneously, the adjustment can be completed only by continuous debugging, but the accuracy is finally difficult to ensure.

Disclosure of Invention

The invention aims to provide a ballastless track bent frame which can realize the transverse width adjustment, the height adjustment and the horizontal angle adjustment of a track panel and is not interfered mutually.

In order to achieve the technical purpose, the technical scheme of the invention comprises the following steps:

the utility model provides a two formula ballastless track framed bent devices, includes section of track main part, one end swing joint in the regulating part of section of track main part tip and support near in the protection basis of section of track main part side, the section of track main part is used for fixed biserial instrument rail, the other end swing joint of regulating part in on the protection basis, the both ends of regulating part can lock in respectively the section of track main part with on the protection basis.

An adjusting method of a double-block ballastless track bent frame device comprises the following steps:

s41: the first sliding part can move along the length direction of the first screw rod by rotating the first screw rod, and the first locking nut is rotated to abut against the end part of the track panel main body outside the first sliding groove so as to lock the position of the first sliding part on the first screw rod, so that the transverse width of the track panel is adjusted;

s42: the second sliding part can slide along the vertical groove by rotating the third screw rod, and the third locking nut is rotated to the protective foundation outside the vertical groove so as to lock the height of the second sliding part in the vertical groove and complete the height adjustment of the tool rail;

s43: rotating the second screw to adjust the position of the sliding block in the second sliding groove, and rotating the second locking nut to abut against the sliding sleeve outside the second sliding groove to lock the position of the sliding block in the second sliding groove, so as to complete the adjustment of the horizontal angle of the track panel main body surface;

s44: filling the first chute, the second chute and the vertical slot.

A construction method of a double-block ballastless track bent frame device comprises the following steps:

s1: cleaning a site, arranging a center line control pile and a mark pile, presetting a ballast bed reinforcing mesh, and installing a transverse template;

s2: laying a protection foundation;

s3: the method comprises the following steps of (1) separating sleepers and assembling a track panel main body, and roughly adjusting the position of the track panel main body by utilizing self-propelled paving and matching with a multifunctional electric control lifting appliance;

s4: binding a ballast bed reinforcing mesh, and grounding and welding, wherein the transverse width, the vertical height and the horizontal angle of the ballastless track bent device are adjusted and locked by using the adjusting method of the double-block ballastless track bent device;

s5: installing a longitudinal template, installing the longitudinal template in a groove of a bent support leg of the track panel, and fixing the transverse template at the bottom of the track panel by using a clamp;

s6: pouring concrete of a ballast bed, fixing the double blocks, and vibrating and plastering to form;

s7: and (5) curing, dismantling the track bent frame and entering circulating construction.

Compared with the prior art, the invention has the beneficial effects that: .

1. According to the double-block ballastless track bent frame device, the track panel main body and the protection foundation are respectively and movably connected through the adjusting piece and can be respectively locked on the track panel main body and the protection foundation, so that the transverse width adjustment, the height adjustment and the horizontal angle adjustment of the track panel are not interfered with each other.

2. According to the adjusting method of the double-block type ballastless track bent frame device, the position of the sliding sleeve on the track panel main body can be adjusted through the first screw and the first locking nut, and the width adjustment of the track panel is realized; the vertical height of the whole track panel can be adjusted through a third screw and a third locking nut; finally, one end of the arm body is hinged to the hinge shaft, the hinge shaft and the sliding block are connected into a whole, the sliding block can slide in the second sliding groove through the second screw rod, the second locking nut 203 is locked, therefore, the positions of the sliding blocks at the two ends of the track panel relative to the center of the sliding block can be respectively adjusted to be asymmetric, the horizontal plane angle adjustment of the track panel can be realized, the adjusting method is simple and convenient, and the adjusting precision is high.

3. The combined track bent frame integrates a tool track, a sleeper track, a template and an adjusting system (forms a bent main body and a sliding sleeve), has the functions of sleeper installation and positioning, rough track adjustment, template installation and fine track adjustment, can effectively simplify the operation procedure and improve the construction efficiency.

4. After the construction method disclosed by the invention is used for sleeper distribution operation, the track panel is directly assembled on the movable mechanical sleeper distribution assembly platform, the distance between sleepers is accurate and reliable, and the engineering quality and progress are not influenced.

5. According to the construction method, after the sleeper splitting operation, the transverse width, the vertical height and the horizontal angle of the track bent can be adjusted and locked, so that accurate adjustment is realized, and the adjustment is convenient; in addition, compared with the defects that the radar 2000 system can only be constructed in sequence, the construction process occupies more equipment, the construction site is large, a special logistics channel is needed, and the construction progress is slow, the construction method can realize circular parallel construction, and has the advantages of less equipment occupation, high equipment utilization rate and fast construction progress in the construction process.

Drawings

Fig. 1 is a schematic diagram of an implementation state of a double-block ballastless track bent frame device according to an embodiment of the invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic diagram of another implementation state of a double-block ballastless track bent frame device according to an embodiment of the invention;

FIG. 4 is a schematic perspective view of an alternative connection between a connection arm and a connection portion according to an embodiment of the invention;

FIG. 5 is a schematic perspective view of an alternative connection of a connecting arm to a connecting portion according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of an alternative connection of a connecting arm to a connecting portion according to an embodiment of the present invention;

fig. 7 is a flowchart of an adjusting method of a double-block ballastless track bent frame device according to an embodiment of the present invention;

fig. 8 is a flowchart of a construction method of a double-block ballastless track bent frame device according to an embodiment of the present invention;

fig. 9 is a side-by-side circulation construction diagram of a double-block ballastless track bent frame device provided by the embodiment of the invention;

1 track panel main body, 10 first sliding chute, 11 first screw rod, 12 first locking nut, 2 adjusting piece, 20 sliding sleeve, 200 first sliding part, 2000 bearing sliding part, 2001 thread sliding part, 201 connecting part, 2010 second sliding chute, 202 second screw rod, 203 second locking nut,

21 connecting arm, 210 arm body, 2100 second sliding part, 211 slider, 212 hinge shaft, 213 third screw, 214 third locking nut,

3 protective foundation, 30 vertical grooves,

4 tool rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Double-block type ballastless track bent device

Referring to fig. 1-3, the double-block ballastless track bent frame device provided by the invention comprises a track panel main body 1, an adjusting piece 2 with one end movably connected to the end part of the track panel main body 1, and a protection foundation 3 close to the side of the track panel main body, wherein the adjusting piece 2 is used for fixing a double-row tool track 4, the other end of the adjusting piece 2 is movably connected to the protection foundation 3, and two ends of the adjusting piece 2 can be respectively locked on the track panel main body 1 and the protection foundation 3. According to the double-block ballastless track bent frame device, the track panel main body and the protection foundation are respectively and movably connected through the adjusting piece and can be respectively locked on the track panel main body and the protection foundation, so that the transverse width adjustment, the height adjustment and the horizontal angle adjustment of the track panel are not interfered with each other.

Specifically, as shown in fig. 4-5, the adjusting member 2 includes a sliding sleeve 20 sliding on the end of the track panel main body 1, and a connecting arm 21. The tool rail 4 is fixed on the sliding sleeve 20, one end of the connecting arm 21 slides in the sliding sleeve 20, and the other end slides on one side surface of the protection base 3 close to the track panel main body 1. The width adjustment of the track panel is realized by the sliding of the sliding sleeve 20 on the track panel main body 1, and the vertical height and the levelness adjustment of the track panel are respectively realized by the sliding of two ends of the connecting arm 21. The sliding connection mode of the sliding sleeve 20 and the track panel main body 1, the sliding connection mode of the connecting arm 21 and the sliding sleeve 20, and the sliding connection mode of the connecting arm 21 and the protection base 3 can be modes such as groove-fit sliding, sleeve-fit sliding, groove-fit rolling and the like. In a more specific embodiment, the sliding sleeve 20 has a first sliding portion 200 slidably connected with the track panel main body 1 through a groove fit, and a connecting portion 201 for connecting the connecting arm 21, the first sliding portion 200 is slidably locked at an end portion of the track panel main body 1, one end of the connecting arm 21 is slidably locked at the connecting portion 201, and the other end is slidably locked at the protection base 3.

In order to illustrate the way that the first sliding portion 200 can slide and be locked on the track panel main body 1, in a further embodiment, as shown in fig. 1-2, a first sliding slot 10 is formed at an end portion of the track panel main body 1, the track panel main body 1 includes a first screw 11 rotatably connected in the first sliding slot 10, and a first locking nut 12 threadedly sleeved on the first screw 11, the first sliding portion 200 slides in the first sliding slot 10, the first screw 11 passes through the first sliding portion 200 and is threadedly connected with the first sliding portion 200, a length direction of the first screw 11 is consistent with a length direction of the track panel main body 1, the first sliding portion 200 can move along the length direction of the first screw 11 by rotating the first screw 11, and the first locking nut 12 locks a position of the first sliding portion 200 on the first screw 11. Thus, the transverse width of the track panel can be adjusted. Specifically, two ends of the track panel main body 1 are respectively provided with a first sliding chute 10, a first screw rod 11 and a first locking nut 12, so that the transverse sliding distances of the sliding sleeves 20 at the two ends can be adjusted simultaneously or respectively, and the adjustment is flexible during construction.

In a further embodiment, as shown in fig. 1-2, the first sliding portion 200 includes a bearing sliding portion 2000 sliding outside the first sliding groove 10 and a threaded sliding portion 2000 sliding inside the first sliding groove 10. The bearing sliding part 2000 is only connected with the track panel main body 20 in a sliding mode, sliding of the sliding sleeve 20 is achieved, the sliding contact area of the bearing sliding part 2000 and the track panel main body 20 meets bearing requirements, specifically, a section of groove is formed in the upper surface of the end portion of the track panel main body 1, the bearing sliding part 2000 is a portion, protruding towards the upper surface of the track panel main body 1, of the first sliding part 200, the portion is embedded into and slides in the groove, meanwhile, the tool rail 4 is fixed on the upper surface of the bearing sliding part 2000, therefore, the groove limits movement of the bearing sliding part 2000, meanwhile, the bearing sliding part 2000 has the width and the length meeting the requirements of the tool rail 4 and bearing on the tool rail 4, and therefore the sliding sleeve 20 can slide and meet bearing requirements at the same time. The threaded sliding portion 2001 is another portion of the first sliding portion 200 extending into the first sliding groove 10, so as to lock the sliding sleeve 20 to slide along the length direction of the track panel main body 1.

In order to illustrate the connection manner between the connecting arm 21 and the sliding sleeve 20, in a further embodiment, as shown in fig. 1 to 5, the connecting portion 201 is provided with a second sliding slot 2010, the connecting arm 21 includes an arm body 210, a sliding block 211 slidably connected in the second sliding slot 2010, and a hinge shaft 212 extending from the sliding block 211, one end of the arm body 210 is hinged to the hinge shaft 212, and the other end is connected to the protection base 3; the sliding sleeve 20 includes a second screw 202 rotatably connected to the connecting portion 201 and inserted into the second sliding groove 2010, and a second locking nut 203 threadedly fitted on the second screw 202, wherein a length direction of the second screw 202 is identical to a length direction of the sliding sleeve 20, a position of the slider 211 in the second sliding groove 2010 can be adjusted by rotating the second screw 202, and a position of the slider 211 in the second sliding groove 2010 can be locked by rotating the second locking nut 203.

A sliding and locking manner of the sliding block 211 in the second sliding groove 2010 is that the second screw 202 extends from one bottom end of the second sliding groove 2010 to the outside of one end of the second sliding groove 2010, and the second locking nut 203 is threadedly sleeved on the second screw 202 outside the second sliding groove 2010; thus, the second screw 202 is rotated to slide the slider 211 in the second sliding groove 2010, and the second locking nut 203 is rotated to abut against the outer wall of the second sliding groove 2010. Specifically, as shown in fig. 6, an i-shaped notch is formed in the connecting portion 201, two inner walls of two wings of the notch form second sliding grooves 2010, a sliding block 211 slides in each second sliding groove 2010, a second screw 202 is rotatably connected in each second sliding groove 2010, one end of each second screw 202 extends out of the second sliding groove 2010 towards the i-shaped notch, and a second locking nut 203 is threadedly sleeved on one end of the second screw 202 extending out of the second sliding groove 2010; thus, the sliding block 211 can slide in the second sliding groove 2010 by rotating the second screw 202, and the second locking nut 203 is rotated to abut against the outer wall of the second sliding groove 2010, so that the sliding block 211 can be locked.

A sliding and locking manner of the sliding block 211 in the second sliding groove 2010 is that two second screws 202 are rotatably connected in each second sliding groove 2010, each second screw 202 has one end extending out of the second sliding groove 2010, and one end of each second screw 202 extending out of the second sliding groove 2010 is threaded and sleeved with a second locking nut 203; thus, one end of the second screw 202 in the second sliding groove 2010 is rotated to abut against two side walls of the slider 211 in the second sliding groove 2010 along the length direction of the sliding sleeve 20, and the second locking nut 203 is rotated to abut against the outer wall of the second sliding groove 2010, so as to lock the position of the slider 211 in the second sliding groove 2010. Specifically, in this embodiment, the connecting portion 201 is a protruding portion of the sliding sleeve 20, two opposite inner side walls of the connecting portion 201 after being recessed form a second sliding groove 2010, a sliding block 211 slides in each second sliding groove 2010, two second screws 202 are rotatably connected in each second sliding groove 2010, one end of each second screw 202 located in the second sliding groove 2010 forms a shape adapted to the second sliding groove 2010 and slides in the second sliding groove 2010 in the same manner as the sliding block 211, and one end of each second screw 202 located outside the second sliding groove 2010 is sleeved with a second locking nut 203. Thus, the two second screws 202 can be rotated to respectively abut against the two side walls of the sliding block 211 along the length direction of the sliding sleeve 20, and the second locking nut 203 can be rotated to abut against the outer wall of the sliding sleeve 20 outside the second sliding groove 203, so as to lock the position of the sliding block 211 in the second sliding groove 203.

In the above embodiment of the sliding and locking manner of the sliding block 211 in the second sliding portion 2010, the connecting portion 201 may form a plurality of second sliding grooves 2010, a plurality of sliding blocks 211 and a plurality of hinge shafts 212 arranged side by side, and the corresponding arm 210 may form a plurality of branches hinged to the hinge shafts 212 respectively. Correspondingly, two second sliding grooves 2010, two sliding blocks 211 and a hinge shaft 212 are formed in an i-shaped notch or a protruding part of each connecting part 201, and a branch of one arm body 210 is correspondingly hinged with the notch or the protruding part. In this way, the arm body 210 is supported by the plurality of branches, and the strength of the connecting arm 21 can be increased, thereby enhancing the support of the track panel.

In a further embodiment, the arm body 210 of the connecting arm 21 is integrally arc-shaped, and the arc-shaped opening of the arm body is obliquely downward towards the middle of the track panel main body 1, so that the bearing stress of the track panel main body 1 can be dispersed.

To illustrate the connection between the connecting arm 21 and the protection base 3, in a specific embodiment, as shown in fig. 1-2, the protection base 3 has a vertical slot 30 opened along a vertical direction, the arm body 210 has a second sliding portion 2100 slidably connected in the vertical slot 30, the connecting arm 21 further includes a third screw 213 rotatably connected in the vertical slot 30 along the vertical direction, and a third locking nut 214 threadedly engaged with the third screw 213, and the third screw 213 passes through the second sliding portion 2100 and is threadedly connected with the second sliding portion 2100; the second sliding portion 2100 can slide in the vertical groove 30 by rotating the third screw rod 213, and the third locking nut 214 is rotated to abut against the protection base 3 outside the vertical groove 30, so as to lock the height of the second sliding portion 2100 in the vertical groove 30. According to the embodiment, the vertical height of the track panel can be adjusted.

Adjusting method of double-block ballastless track bent device

With reference to fig. 7, the adjusting method of the double-block ballastless track bent frame device provided by the above embodiment includes the following steps:

s41: the first screw 11 is rotated to enable the first sliding part 200 to move along the length direction of the first screw 11, and the first locking nut 12 is rotated to abut against the end part of the track panel main body 1 outside the first sliding groove 10 to lock the position of the first sliding part 200 on the first screw 11, so as to complete the transverse width adjustment of the track panel; specifically, the first screw 11 is rotated to make the bearing sliding portion 2000 slide in the corresponding groove, and the threaded sliding portion 2001 slides in the first sliding groove 10, and the first locking nut 12 is rotated to abut against the end portion of the track panel main body 1 outside the first sliding groove 10, so that the sliding and locking of the sliding sleeve 20 along the track panel main body 1 can be completed.

S42: the third screw rod 213 is rotated to enable the second sliding portion 2100 to slide in the vertical groove 30, and the third locking nut 214 is rotated to the protection base 3 outside the vertical groove 30 to lock the height of the second sliding portion 2100 in the vertical groove 30, so as to complete the height adjustment of the tool rail 4;

s43: rotating the second screw 202 to adjust the position of the slider 211 in the second sliding groove 2010, and rotating the second locking nut 203 to abut against the sliding sleeve 20 outside the second sliding groove 2010 to lock the position of the slider 211 in the second sliding groove 2010, thereby completing the adjustment of the horizontal angle of the track panel main body surface;

s44: filling the first chute 10, the second chute 2010 and the vertical groove 30 respectively; so, protect first screw rod 11 in the first spout 10, second screw rod 202 in the second spout 2010, third screw rod 213 in the vertical groove 30, specifically, the filler material chooses pitch or polyurethane resin to fill for use, forms waterproof, rust-resistant and anti-oxidant effect to it, need to shovel the back with the filling layer after the cycle construction, adjusts again.

In the adjusting mode, the position of the sliding sleeve on the track panel main body can be adjusted through the first screw and the first locking nut, and the width of the track panel is adjusted; the vertical height of the whole track panel can be adjusted through a third screw and a third locking nut; finally, one end of the arm body 210 is hinged to the hinge shaft 212, the hinge shaft 212 and the sliding block 211 are connected into a whole, the sliding block 211 can slide in the second sliding groove 2010 through the second screw 202, and the second locking nut 203 locks, so that the positions of the sliding blocks 211 at the two ends of the track panel relative to the center of the sliding blocks can be adjusted asymmetrically, the horizontal plane angle adjustment of the track panel can be realized, the adjusting method is simple and convenient, and the adjusting precision is high.

Construction method of double-block ballastless track bent frame device

The construction of the ballast bed is calculated according to the daily schedule of 351 meters, three shifts are totally arranged, and the construction length of each shift is 175.5m each day. Now, 6 track panels (30 units) are taken as an example, and two rows of tracks are divided into a first line and a second line, wherein the construction sequence is that the first line is first, the second line is later, the distance between two lines is 175.5m, and the time interval is 8 h. As shown in fig. 9, the construction steps are as follows:

1. the first group of the first line is provided with 1-5 units, the first group is locked after the geometric dimension of the rail surface is adjusted, and the time is controlled to be 8 h.

2. And pouring concrete from the beginning of the 1 unit track panel to the end of the 5 unit track panel, wherein the pouring length is 175.5m, and the time is controlled to be 8 h. And (5) timely plastering and preserving after concrete pouring is finished.

3. The second line and the second group of track panel 6-10 units are arranged at the beginning of concrete pouring of the first group, and the geometrical dimension locking of the track surface is adjusted. The time is also controlled at 8 h.

4. The second set of concretes starts from 6 units of track panel and ends with 10 units of track panel, the casting length is also 175.5 m. The time is 8 h.

5. The construction of the first line third group 11-15 units, the second line fourth group 16-20 units, the first line fifth group 21-25 units and the second line sixth group 26-30 units is the same as the above.

6. And (3) when the strength of the first group of track panel concrete reaches the standard, removing 1-5 units of track panels, and performing seventh group (1-5 units) of track panel connection. And (4) sequentially circulating, wherein the left line is the same as the right line until all ballast bed constructions are completed.

As shown in fig. 8, the construction method of the double-block ballastless track according to the present invention is described by taking an example of completing a complete construction (for example, 1 to 5 units in the above steps) in one shift, specifically performing the following steps,

s1: cleaning a site, arranging a center line control pile and a mark pile, presetting a ballast bed reinforcing mesh, and installing a transverse template;

s2: laying a protection foundation;

s3: the method comprises the following steps of (1) separating sleepers and assembling a track panel main body, and roughly adjusting the position of the track panel main body by utilizing self-propelled paving and matching with a multifunctional electric control lifting appliance; the self-propelled paving machine is used for being matched with the multifunctional electric control lifting appliance to hoist the sleeper to the movable mechanical sleeper-separating assembly platform to separate the sleeper, the self-propelled paving machine hoisting combined type track bent frame is moved to be aligned above the movable mechanical sleeper-separating assembly platform, the sleeper with separated sleeper spacing is installed on the combined type track bent frame to form a small track panel for paving, and the track panel is subjected to center line alignment to realize coarse adjustment;

s4: the method for adjusting the double-block type ballastless track bent device provided by the embodiment is utilized to complete the adjustment and locking of the transverse width, the vertical height and the horizontal angle of the ballastless track bent device;

s5: installing a longitudinal template, installing the longitudinal template in a groove of a bent support leg of the track panel, and fixing the transverse template at the bottom of the track panel by using a clamp;

s6: pouring concrete of a ballast bed, fixing the double blocks, and vibrating and plastering to form;

s7: the method comprises the following steps of maintaining the life, removing the track bent frame, entering circular construction, utilizing the self-propelled spreading machine to lift the track bent frame to hang the sleeper again for circular use, manually removing the longitudinal template after the track bent frame is removed, and removing the transverse template by using the self-propelled spreading machine.

Comparison of Process flow

The construction method of the invention comprises the following steps:

cleaning site → control of piles and mark piles in the center of the arrangement → presetting of track bed reinforcing steel bar nets → installation of transverse formworks → separation of sleepers and assembly of track slabs → rough adjustment of track slabs → binding of track bed reinforcing steel bar nets, grounding welding → connection, fine adjustment of track slabs → installation of longitudinal formworks → pouring of track bed concrete, vibration and plastering forming → curing and dismantling of track bent frames to enter circulation.

B, a construction method of the German radar 2000 system:

transporting sleepers to a construction site → laying sleepers → installing tool rails and fine adjustment screw bases → coarse adjusting the geometry of the rail face system → welding of the mesh reinforcement → installing longitudinal and transverse formworks → fine adjusting the geometry of the rail face system → pouring of track bed concrete → demolition formworks → demolition tool rails → long rail laying.

In summary, compared with the construction method of the radar 2000 system, the construction method of the present invention has the following advantages:

firstly, because the German radar 2000 system has no track bent, the adjustment of the track panel can not be realized by using two tool tracks, and the track panel needs to be adjusted by using a coarse adjusting machine set, the combined track bent of the invention integrates the tool track, a sleeper track, a template and an adjusting system (a track panel main body 1 and a sliding sleeve 2 are formed), has the functions of sleeper installation and positioning, track coarse adjustment, template installation and track fine adjustment, can effectively simplify the operation procedure and improve the construction efficiency;

secondly, after the sleeper distribution operation in the step S3, the track panel is directly assembled on the movable mechanical sleeper distribution assembly platform, the distance between sleepers is accurate and reliable, and after the radar 2000 system looses the sleepers, the track panel is assembled after the sleepers are detached from the discrete sleeper devices, so that the positions of the sleepers are likely to move in the process, and the engineering quality and progress are influenced;

thirdly, in the construction method, step S4, after the sleeper splitting operation, the transverse width, the vertical height and the horizontal angle of the track bent can be adjusted and locked, so that the precise adjustment is realized, and the adjustment is convenient; in addition, compared with the defects that the radar 2000 system can only be constructed in sequence, the construction process occupies more equipment, the construction site is large, a special logistics channel is needed, and the construction progress is slow, the construction method can realize circular parallel construction, and has the advantages of less equipment occupation, high equipment utilization rate and fast construction progress in the construction process.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.