Variable span rail layer

Abstract

The utility model discloses a variable span rail layer which comprises two bases arranged oppositely, steering shafts are rotatably installed at the two ends of the bases, electric rolling wheels are installed on the steering shafts, lifting hydraulic cylinders are installed on the bases, and steering mechanisms are installed on the bases. The height of the two supporting leg assemblies is adjustable, and the supporting leg assemblies are vertically arranged on the base; the supporting beam assembly comprises two socket box beams and a plug-in box beam, the two socket box beams are coaxially arranged, the opposite ends of the two socket box beams are provided with insertion holes, the insertion holes are formed in the axial direction of the socket box beams, and the two ends of the plug-in box beam are movably inserted into the insertion holes of the two socket box beams respectively; the opposite ends of the two socket box girders are connected to the upper ends of the two supporting leg assemblies correspondingly, telescopic hydraulic cylinders are installed at the two ends of the socket box girder correspondingly, and the socket box girders are provided with first locking pieces. And the lifting appliance is mounted on the plug-in box girder in a lifting manner. The track laying machine solves the problem that an existing track laying machine is fixed in span and cannot be suitable for various tunnel structures and ballast bed forms.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a variable-span track laying machine. Background Art

[0002] With the rapid development of urban subway construction and changing market demands, traditional track-laying technology is no longer able to meet the requirements for efficiency, precision, and environmental friendliness. Traditional track-laying technology, which primarily relies on manpower and mechanical equipment, suffers from low efficiency, limited precision, and high labor intensity. This not only impacts the progress and quality of subway track-laying, but also increases costs and safety risks. To meet the urgent need for efficient track-laying technology in subway construction, the Xinneng Intelligent Track Laying Machine was developed by combining advanced technologies such as new energy, artificial intelligence, and the Internet of Things.

[0003] Tunnel structures vary, including shield, horseshoe, rectangular, platform, and civil air defense door configurations. To accommodate these various tunnel structures and trackbed configurations, the structure and span of the tunnel track laying machine must be adapted accordingly. Due to the confined space within the tunnel, changing the span and structure of the tunnel track laying machine within the tunnel presents numerous risks, operational inconveniences, and lengthy operations. Furthermore, if the tunnel track laying machine ceases operation, the entire track laying process grinds to a halt, resulting in work delays.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] In order to overcome the defects of the existing technology, a variable span track laying machine is now provided to solve the problem that the existing track laying machine has a fixed span and cannot be used in various tunnel structures and roadbed forms.

[0006] To achieve the above object, a variable span track laying machine is provided, comprising:

[0007] Two bases are arranged opposite to each other, with steering shafts rotatably mounted at both ends of the bases, the steering shafts being equipped with electric rollers for sliding on the walking tracks, the bases being equipped with lifting hydraulic cylinders, and the bases being equipped with steering mechanisms for driving the steering shafts;

[0008] Two height-adjustable leg assemblies, the leg assemblies being vertically arranged on the base;

[0009] A support beam assembly, comprising two socket box beams and a plug-in box beam, wherein the two socket box beams are coaxially arranged, and sockets are formed at opposite ends of the two socket box beams, and the sockets are arranged along the axial direction of the socket box beams. Both ends of the plug-in box beam are movably inserted into the sockets of the two socket box beams, and the opposite ends of the two socket box beams are respectively connected to the upper ends of the two leg assemblies. Both ends of the plug-in box beam are respectively installed with a telescopic hydraulic cylinder for driving the plug-in box beam, and the socket box beam is installed with a first locking member for locking the plug-in box beam;

[0010] The sling is installed on the plug-in box beam in a liftable manner.

[0011] Furthermore, the steering mechanism is a first motor, and the output shaft of the first motor is coaxially connected to the steering shaft.

[0012] Furthermore, the socket box beam is provided with a plurality of first locking holes connected to the socket, and the plurality of first locking holes are arranged at intervals along the axial direction of the socket box beam, and the plug-in box beam is provided with a second locking hole, and the first locking piece is inserted into a first locking hole and the second locking hole.

[0013] Furthermore, the leg assembly includes:

[0014] A column is vertically arranged in the middle of the base, and a vertical channel is formed inside the column;

[0015] A sliding column, the lower end of which is slidably disposed in the vertical channel, and the opposite ends of the socket box beam are connected to the upper end of the sliding column;

[0016] a lifting hydraulic cylinder, installed in the vertical channel and supported on the lower end of the sliding column;

[0017] A second locking member for locking the sliding column is installed on the column.

[0018] Furthermore, the column is provided with a plurality of third locking holes connected to the vertical channel, the sliding column is provided with a fourth locking hole, and the second locking member is inserted into a third locking hole and the fourth locking hole.

[0019] The beneficial effect of the present invention is that the variable span track laying machine of the present invention is an efficient, intelligent and environmentally friendly track laying machine equipment, and the width thereof can be adjusted by extending and retracting the telescopic hydraulic cylinder to adjust the insertion depth of the plug-in box beam in the socket in the socket box beam. Before adjusting the width of the variable span track laying machine of the present invention, the electric roller on the base is disengaged from the running track by extending the lifting hydraulic cylinder. The steering mechanism drives the steering shaft to rotate so that the running direction of the electric roller is perpendicular to the running track. The base is then lowered by lifting the hydraulic cylinder so that the electric roller touches the ground, so that the width of the variable span track laying machine of the present invention can be subsequently adjusted to be suitable for use in a variety of tunnel structures and roadbed forms. The height of the variable span track laying machine of the present invention can be adjusted by the lifting hydraulic cylinder provided at the support leg assembly, which can meet the limit size requirements required for all rail transit track laying projects to meet the needs of the subway construction field. At the same time, this research has made improvements in the application scenarios, performance optimization and cost-effectiveness of the intelligent track laying machine, and has greatly promoted the continuous development and application of intelligent track laying machine technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 This is a schematic structural diagram of a variable-span track laying machine according to an embodiment of the present utility model.

[0022] Figure 2 This is a front view of a variable span track laying machine according to an embodiment of the present utility model.

[0023] Figure 3 This is a structural diagram of a base according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic structural diagram of a sling according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0025] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] Reference Figures 1 to 4As shown, the utility model provides a variable-span track laying machine, comprising: a base 1, a leg assembly 2, a support beam assembly, and a sling 4.

[0028] In this embodiment, there are two bases 1 , which are arranged opposite to each other.

[0029] See Figure 3 As shown, the base 1 is elongated. Steering shafts 11 are rotatably mounted at both ends of the base 1. Motorized rollers 12 are mounted on the steering shafts 11. These motorized rollers 12 are used to slide on the running track 5. The base is positioned along the length of the running track 5. A lifting hydraulic cylinder 13 is mounted on the base 1. A steering mechanism is also mounted on the base 1. The steering mechanism is used to drive the steering shaft 11.

[0030] In this embodiment, the steering mechanism is a first motor, and the output shaft of the first motor is coaxially connected to the steering shaft 11 .

[0031] There are two leg assemblies 2. The height of the leg assemblies 2 is adjustable. The leg assemblies 2 are vertically arranged on the base 1.

[0032] The support beam assembly 3 includes two socket box beams 31 and a splice box beam 32. The two socket box beams 31 are coaxially arranged. Sockets are provided at opposite ends of the two socket box beams 31. The sockets are arranged along the axial direction of the socket box beams 31. The ends of the splice box beam 32 are movably inserted into the sockets of the two socket box beams 31. The opposite ends of the two socket box beams 31 are respectively connected to the upper ends of the two support leg assemblies 2. Telescopic hydraulic cylinders are respectively installed at both ends of the splice box beam 32. The telescopic hydraulic cylinders are used to drive the splice box beam 32. The socket box beam 31 is equipped with a first locking member. The first locking member is used to lock the splice box beam 32.

[0033] The sling 4 is movably mounted on the plug-in box beam 32. The sling is used to lift heavy objects such as standard rails or concrete hoppers.

[0034] As a preferred embodiment, see Figure 2 As shown, the socket box beam 31 is provided with a plurality of first locking holes connected to the insertion hole. The plurality of first locking holes are spaced apart along the axial direction of the socket box beam 31. The plug box beam 32 is provided with a second locking hole. The first locking member is inserted into one of the first locking hole and the second locking hole.

[0035] In this embodiment, continue to refer to Figure 2 As shown, the leg assembly 2 includes: a column 21, a sliding column 22, a lifting hydraulic cylinder 23, and a second locking member.

[0036] A column 21 is erected in the middle of the base 1. A vertical channel is formed within the column 21. A sliding column 22 is coaxially arranged with the column. The lower end of the sliding column 22 slides in the vertical channel. The opposite ends of the socket box beam 31 are connected to the upper end of the sliding column 22. A lifting hydraulic cylinder 23 is installed in the vertical channel. The lifting hydraulic cylinder 23 is supported by the lower end of the sliding column 22. A second locking member is installed on the column 21. The second locking member is used to lock the sliding column 22.

[0037] Specifically, the column 21 is provided with a plurality of third locking holes connected to the vertical channel, the sliding column 22 is provided with a fourth locking hole, and the second locking member is inserted into the third locking hole and the fourth locking hole.

[0038] This variable-span track laying machine is powered by a 60V battery and consists primarily of a support beam assembly, outrigger assembly, base, motorized rollers, a sling, and an electrical control system. To facilitate transportation and on-site installation, the components are secured with pins and bolts.

[0039] The width of the variable span track laying machine of the utility model is adjusted by adjusting the insertion depth of the splicing box beam in the insertion hole of the splicing box beam by telescoping the telescopic hydraulic cylinder. The adjustable width range of the variable span track laying machine of the utility model is 3 to 4.5 meters.

[0040] Before adjusting the width of the variable-span track laying machine, the hydraulic cylinder is extended to disengage the motorized rollers on the base from the track. The steering mechanism drives the steering shaft to rotate, aligning the motorized rollers' travel direction with the track. The hydraulic cylinder is then lowered to allow the motorized rollers to touch the ground, allowing the width of the variable-span track laying machine to be adjusted.

[0041] The height of the variable-span track laying machine of the utility model is adjusted by a jacking hydraulic cylinder arranged at the support leg assembly, and the adjustable height range is 3 to 5.2 meters, which can meet the limit size requirements required by all rail transit track laying projects.

[0042] The travel of this variable-span track laying machine is driven by electric rollers mounted on the base. These rollers are controlled by a 0.8kW three-in-one motor. To ensure safe operation, infrared anti-collision and warning devices are installed.

[0043] The lifting action of the spreader of the variable-span track laying machine of the utility model is controlled by two electric hoists with a power of 6.3kW installed on the plug-in box girder, and the cargo is lifted collaboratively by connecting the spreader with multiple sets of steel ropes; at the same time, it is equipped with a modular multifunctional trolley to realize horizontal adjustment of the front, back, left and right corners of the spreader, and the trolley and the trolley can realize directional adjustment of the front, back, left and right.

[0044] The use process of the variable span track laying machine of the utility model:

[0045] S1. When laying the track for the variable span track laying machine, the track for the subway track laying machine should be 100m ahead of the steel mesh laying area.

[0046] S2. Lay the roadbed base reinforcement mesh.

[0047] S3. Assemble rails, sleepers, fasteners, etc. into standard track rows at the track laying base.

[0048] S4. Use two gantry cranes to lift the assembled track onto a subway flatbed truck and transfer it to the track laying operation surface.

[0049] S5. Two track laying machines work together to hoist and lay the standard rails into place for installation.

[0050] S6. The top-supported rail support frame assists the track laying machine in track laying. First, the track direction, gauge, level, elevation and other geometric dimensions are roughly adjusted according to the design requirements, and then fine-tuned using the track inspection trolley. Repeated adjustments are made to achieve the track laying accuracy requirements.

[0051] S7. Lay the upper steel mesh of the roadbed. There are 5 longitudinal steel bars in the upper steel mesh of the roadbed that pass through the holes reserved for the sleepers.

[0052] S8. Transverse and longitudinal reinforcements are double-sided lap welded and tied.

[0053] S9. Remove the formwork on the track bed, and the track laying machine lifts the concrete hopper for pouring and vibrating; when the concrete strength reaches 7.5Mpa, remove the formwork and rail support frame.

[0054] S10, loop the above process to complete the track laying operation.

[0055] The variable-span track laying machine of the present invention is an efficient, intelligent and environmentally friendly track laying machine equipment. The width of the variable-span track laying machine can be adjusted by extending and retracting the telescopic hydraulic cylinder to adjust the insertion depth of the plug-in box beam in the socket in the socket box beam. Before adjusting the width of the variable-span track laying machine of the present invention, the electric roller on the base is disengaged from the running track by extending the lifting hydraulic cylinder. The steering mechanism drives the steering shaft to rotate so that the running direction of the electric roller is perpendicular to the running track. The base is then lowered by lifting the hydraulic cylinder so that the electric roller touches the ground, so that the width of the variable-span track laying machine of the present invention can be adjusted subsequently. The height of the variable-span track laying machine of the present invention can be adjusted by the lifting hydraulic cylinder set at the support leg assembly, which can meet the limit size requirements required for all rail transit track laying projects to meet the needs of the subway construction field. At the same time, this research has made improvements in the application scenarios, performance optimization and cost-effectiveness of the intelligent track laying machine, and has greatly promoted the continuous development and application of intelligent track laying machine technology.

[0056] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A variable span track laying machine, characterized in that: include: Two bases are arranged opposite to each other, with steering shafts rotatably mounted at both ends of the bases, the steering shafts being equipped with electric rollers for sliding on the walking tracks, the bases being equipped with lifting hydraulic cylinders, and the bases being equipped with steering mechanisms for driving the steering shafts; Two height-adjustable leg assemblies, the leg assemblies being vertically arranged on the base; A support beam assembly, comprising two socket box beams and a plug-in box beam, wherein the two socket box beams are coaxially arranged, and sockets are formed at opposite ends of the two socket box beams, and the sockets are arranged along the axial direction of the socket box beams. Both ends of the plug-in box beam are movably inserted into the sockets of the two socket box beams, and the opposite ends of the two socket box beams are respectively connected to the upper ends of the two leg assemblies. Both ends of the plug-in box beam are respectively installed with a telescopic hydraulic cylinder for driving the plug-in box beam, and the socket box beam is installed with a first locking member for locking the plug-in box beam; The sling is installed on the plug-in box beam in a liftable manner.

2. The variable span track laying machine according to claim 1, characterized in that: The steering mechanism is a first motor, and the output shaft of the first motor is coaxially connected to the steering shaft.

3. The variable span track laying machine according to claim 1, characterized in that: The socket box beam is provided with a plurality of first locking holes connected to the insertion hole, and the plurality of first locking holes are spaced apart along the axial direction of the socket box beam. The plug-in box beam is provided with a second locking hole, and the first locking piece is inserted into a first locking hole and the second locking hole.

4. The variable span track laying machine according to claim 1, characterized in that: The leg assembly comprises: A column is vertically arranged in the middle of the base, and a vertical channel is formed inside the column; A sliding column, the lower end of which is slidably disposed in the vertical channel, and the opposite ends of the socket box beam are connected to the upper end of the sliding column; a lifting hydraulic cylinder, installed in the vertical channel and supported on the lower end of the sliding column; A second locking member for locking the sliding column is installed on the column.

5. The variable span track laying machine according to claim 4, characterized in that: The column is provided with a plurality of third locking holes connected to the vertical channel, the sliding column is provided with a fourth locking hole, and the second locking piece is inserted into a third locking hole and the fourth locking hole.

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