A two-block sleeper repairing device

Abstract

The utility model discloses a double -block type sleeper repair device belongs to railway track technical field. A double -block type sleeper repair device, including base plate, the periphery of base plate is equipped with formwork assembly respectively, the formwork assembly is including first formwork and second formboard, is equipped with connecting assembly between adjacent first formwork with second formwork, and the limit component is equipped between first formwork with base plate. Through the synergetic effect of base plate, buffer pad, track gauge baffle, sleeper bolt and formwork assembly, the repaired sleeper can be closely combined with concrete roadbed plate, forms a whole, greatly strengthens the integrity and stability of repaired sleeper, effectively avoids the problem that the support intensity is insufficient because of unstable welding quality, improves the reliability of track structure, and the formwork assembly plays the role of forming when pouring concrete, makes the newly poured concrete closely combine with base plate and track gauge baffle, and further strengthens the structural strength of repaired sleeper.

Description

Technical Field

[0001] This utility model belongs to the field of railway track technology, and in particular relates to a double-block sleeper repair device. Background Technology

[0002] As a key component in modern railway track structures, the double-block sleeper plays an irreplaceable role in ensuring the safe and stable operation of trains. It effectively transmits the longitudinal force of the rails to the track bed, while providing stable and reliable support for the rails, ensuring that the rails always maintain the correct geometric position and gauge during train operation.

[0003] In actual operation, double-block sleepers are subject to various factors that cause varying degrees of damage. On the one hand, the huge dynamic load generated by train operation acts on the sleepers for a long time, leading to fatigue damage of the sleeper concrete, resulting in defects such as cracks and spalling, which seriously affects the strength and durability of the sleepers. On the other hand, factors such as rainwater erosion, temperature changes, and chemical corrosion in the natural environment will also accelerate the aging process of the sleepers and reduce their service life. If the sleepers are damaged and not repaired or replaced in time, the damage will affect the safety of train operation.

[0004] The repair steps for existing damaged sleepers are as follows: First, loosen the fasteners, raise the rail to a certain height, and use a concrete cutting saw or other methods to remove the damaged sleeper from the concrete end slab. A space of at least 25mm depth should be chiseled out at the bottom of the sleeper. For ballastless track structures where longitudinal reinforcing bars pass through the double-block sleeper steel truss, cut the reinforcing bars to expose the connecting reinforcing bars extending to the adjacent sleeper box. Roughen the exposed concrete surface, remove rust from the surface of the connecting reinforcing bars, clean loose particles and dust from inside the sleeper box, place a prefabricated double-block sleeper, select reinforcing bars of appropriate length and diameter, and weld them to the exposed longitudinal connecting reinforcing bars of the track bed slab. Support the double-block sleeper with a screw adjuster, position the rail, and install the fasteners. However, this repair method uses a replacement method for the double-block sleeper. Therefore, the stability of the welding quality is difficult to guarantee when welding the reinforcing bars. Problems such as weak welding and welding defects may occur during the welding process. This will not only affect the supporting strength of the sleeper but may also lead to instability of the track structure and increase safety hazards. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the prior art by providing a dual-block sleeper repair device.

[0006] To achieve the above objectives, the utility model adopts the following technical solution: a double-block sleeper repair device, including a base plate, a buffer pad installed on the lower end face of the base plate, a pair of gauge baffles installed on the upper surface of the base plate, a plurality of sleeper bolts installed on the base plate, template assemblies respectively provided around the base plate, the template assembly including a first template and a second template, a connecting assembly provided between adjacent first templates and second templates, and a limiting assembly provided between the first template and the base plate.

[0007] By adopting the above technical solution, through the synergistic effect of the base plate, buffer plate, gauge baffle, sleeper bolts, and template assembly, the repaired sleeper can be integrated with the concrete end plate. The template assembly plays a shaping role during concrete pouring, ensuring that the newly poured concrete is tightly bonded to the base plate and gauge baffle to form a whole. This greatly enhances the integrity and stability of the repaired sleeper, effectively avoids the problem of insufficient support strength caused by unstable welding quality, and improves the reliability of the track structure.

[0008] Optionally, the connecting assembly includes a fixed sleeve and a threaded sleeve installed on a first template or a second template, and a connecting sleeve is provided on the second template or the first template. The connecting sleeve, the fixed sleeve, and the threaded sleeve are connected and fixed by connecting bolts.

[0009] By adopting the above technical solution, and using a connection assembly consisting of a fixed sleeve, a connecting sleeve, a threaded sleeve, and connecting bolts, a quick, firm, and precise connection between the first and second templates can be achieved. This connection method is not only simple to operate, facilitating quick assembly and disassembly of the template components by construction personnel and improving the efficiency of repair work, but also has high connection stability. It can effectively avoid problems such as misalignment and deformation of the template components due to uneven stress or external interference during concrete pouring, thereby ensuring the molding quality of the newly poured concrete, further enhancing the integration of the repaired sleeper and the concrete track slab, and improving the stability and reliability of the overall structure.

[0010] Optionally, the limiting component includes a positioning rod connected to the base plate, a baffle seat is provided on the outer periphery of the positioning rod, a fastening bolt is provided on the baffle seat, a longitudinal limiting strip is installed on the side of the baffle seat near the first template, and a longitudinal limiting groove is provided on the first template to cooperate with the longitudinal limiting strip.

[0011] By adopting the above technical solution, the design of the positioning rod, base plate and fastening bolts can be used to orient the combined first template and second template. At the same time, it can limit the front and back displacement of the first template and second template during the filling process. The cooperation between the longitudinal limiting strip and the longitudinal limiting groove can prevent the combination of the first template and the second template from shifting left and right during the filling process, ensuring the accurate relative position between the template and the sleeper, and thus ensuring that the repaired sleeper has a regular shape and meets the size requirements.

[0012] Optionally, a corner protector strip is installed at the angle between the first template and the second template.

[0013] By adopting the above technical solution, this claim adds a corner guard strip at the angle between the first template and the second template. The installation of the corner guard strip can effectively protect the corner of the template, prevent concrete from seeping out from the connecting component during the sleeper repair process, and also prevent concrete from entering the connecting component, thereby making the disassembly of the connecting component difficult.

[0014] Optionally, the sleeper bolt assembly includes a sleeper bolt, a spring washer and a pressure-dividing washer are provided between the sleeper bolt and the upper surface of the base plate, a gauge adjustment block and a buffer washer assembly are provided between the sleeper bolt and the lower surface of the buffer pad, and a tube sleeve is fitted around the lower end of the sleeper bolt.

[0015] By adopting the above technical solutions, the spring washers and pressure-distributing washers installed between the sleeper bolts and the base plate can effectively disperse the pressure on the bolts and prevent them from loosening. The gauge adjustment blocks and buffer washer groups installed between the sleeper bolts and the buffer pads can not only achieve fine adjustment of the gauge, but also further buffer the impact force of train operation. The sleeve at the lower end of the bolts plays a role in protecting the bolts and preventing them from rusting and being damaged. These designs together improve the stability, reliability and durability of the sleeper bolt components, ensure that the connection between the repair device and the sleeper is firm and reliable, guarantee the stability of the sleeper after repair and the safety of railway operation, and facilitate gauge adjustment and maintenance.

[0016] Optionally, a spring bar is installed on the upper end face of a pair of gauge baffles, and the spring bar is fixed to the upper surface of the gauge baffle by a T-bolt and a hexagonal nut.

[0017] By adopting the above technical solution, the elastic clips are fixed using T-bolts and hexagonal nuts, adding an elastic support function to the sleeper repair device. The elasticity of the clips can effectively buffer the impact force generated on the sleepers during train operation, reduce sleeper wear and damage, and improve the service life of the sleepers. At the same time, the fixing method of the clips is simple and reliable, and easy to install and maintain. This design not only improves the shock absorption performance of the sleeper repair device, but also enhances the stability of the sleepers during train operation, further ensuring the safety and smoothness of railway operation.

[0018] Optionally, the buffer pad and the base plate are respectively provided with a plurality of corresponding perforations.

[0019] By adopting the above technical solution, the perforated design allows connecting parts such as sleeper bolts to pass smoothly through the perforations, achieving a tight connection between the base plate, buffer pad, and sleeper. The corresponding relationship of the perforations ensures the installation accuracy and reliability of the connecting parts, ensuring a firm and stable connection between the entire repair device and the sleeper. It also facilitates installation and disassembly operations, improving the efficiency and convenience of sleeper repair, and providing a strong guarantee for the stable operation of the repair device and the reliable repair of sleepers.

[0020] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the synergistic effect of the base plate, buffer pad, gauge baffle, sleeper bolts, and template assembly, the repaired sleeper can be tightly integrated with the concrete track bed slab to form a whole, greatly enhancing the integrity and stability of the repaired sleeper. This effectively avoids the problem of insufficient support strength caused by unstable welding quality, and improves the reliability of the track structure. The template assembly plays a shaping role when pouring concrete, ensuring that the newly poured concrete is tightly integrated with the base plate and gauge baffle, further enhancing the structural strength of the repaired sleeper.

[0021] 2. The limiting component, through the cooperation of positioning rod, baffle seat, fastening bolt, longitudinal limiting strip and longitudinal limiting groove, can orient the template and limit its forward and backward and left and right displacement during the filling process, ensuring that the relative position of the template and the sleeper is accurate, so that the repaired sleeper has a regular shape and meets the size requirements.

[0022] 3. Install corner guards at the corner between the first and second templates to effectively protect the corner area of ​​the templates, prevent concrete from seeping out from the connection components and entering the connection components, avoid difficulties in disassembling the connection components, and ensure the smooth progress of the repair work.

[0023] 4. The connecting components use fixed sleeves, connecting sleeves, threaded sleeves, and connecting bolts, which can achieve a quick, firm, and precise connection between the first template and the second template. The operation is simple, making it easy for construction personnel to quickly assemble and disassemble the template components, thus improving the efficiency of repair work. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the repair device of this utility model; Figure 2 This is a three-dimensional structural diagram of the first template of this utility model; Figure 3 This is a top view of the combined structure of the first template and the second template of this utility model; Figure 4 This is a schematic diagram of the three-dimensional connection structure between the baffle seat and the positioning rod of this utility model; Figure 5 This is a three-dimensional structural diagram of the sleeper bolt component of this utility model.

[0025] In the diagram: 1. Base plate; 2. Buffer pad; 3. Track gauge baffle; 31. Spring clip; 32. T-bolt; 33. Hex nut; 4. Sleeper bolt assembly; 41. Sleeper bolt; 42. Spring washer; 43. Pressure dividing washer; 44. Track gauge adjustment block; 45. Buffer washer assembly; 46. Pipe sleeve; 5. Template assembly; 6. First template; 7. Second template; 8. Connecting assembly; 81. Fixing sleeve; 82. Threaded sleeve; 83. Connecting sleeve; 84. Connecting bolt; 9. Limiting assembly; 91. Positioning rod; 92. Baffle seat; 93. Fastening bolt; 94. Longitudinal limiting strip; 95. Longitudinal limiting groove; 10. Corner guard strip; 11. Rail. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] like Figure 1As shown in Figure 5, the specific solution of the embodiment is as follows: A double-block sleeper repair device includes a base plate 1 installed on the lower end face of the rail 11. The base plate 1 serves as the basic load-bearing component of the entire repair device. It is installed on the lower end face of the rail 11 to provide an installation platform for other components and to transmit the longitudinal force of the rail 11 to the sleeper and track bed below. A buffer pad 2 is installed on the lower end face of the base plate 1. The buffer pad 2 is bonded to the base plate 1 with double-sided adhesive. The buffer pad 2 and the base plate 1 are respectively provided with several corresponding through holes. The buffer pad 2 can effectively buffer the impact force of the huge dynamic load generated by the train during operation on the sleeper and the repair device, reduce the damage caused by the impact, protect the sleeper and the various components of the repair device, and extend their service life. At the same time, the corresponding through hole design on the buffer pad 2 and the base plate 1 facilitates the passage of connecting parts such as sleeper bolts 41, so as to achieve a tight connection between the base plate 1, the buffer pad 2 and the sleeper. A pair of gauge baffles 3 are installed on the upper surface of the base plate 1. The main function of the gauge baffles 3 is to prevent the rails 11 from shifting laterally during train operation, maintain the correct position and gauge of the rails 11, and ensure the safety and smoothness of train operation. A spring strip 31 is installed on the upper surface of each pair of gauge baffles 3. The spring strip 31 is fixed to the upper surface of the gauge baffles 3 by T-bolts 32 and hexagonal nuts 33. The spring strip 31 adds elastic support to the sleeper repair device. The elasticity of the spring strip 31 can effectively buffer the impact force on the sleepers during train operation, reduce sleeper wear and damage, and improve the service life of the sleepers. At the same time, its fixing method is simple and reliable, easy to install and maintain, enhances the stability of the sleepers during train operation, and further ensures the safety and smoothness of railway operation.

[0029] Several sleeper bolt components 4 are installed on the base plate 1. Each sleeper bolt component 4 includes a sleeper bolt 41. A spring washer 42 and a pressure-distributing washer 43 are provided between the sleeper bolt 41 and the upper surface of the base plate 1. A gauge adjustment block 44 and a buffer washer group 45 are provided between the sleeper bolt 41 and the lower surface of the buffer pad 2. A sleeve 46 is fitted around the lower end of the sleeper bolt 41. There are four sleeper bolt components 4, which are symmetrically distributed. Through the synergistic effect of each component, the sleeper bolt components 4 achieve a tight and stable connection between the base plate 1, the buffer pad 2 and the sleeper. The spring washer 42 and the pressure-distributing washer 43 effectively disperse pressure, reduce local stress concentration, and extend the service life of the components. The gauge adjustment block 44 can adjust the gauge according to actual needs to ensure the accuracy of the track geometry. The buffer washer group 45 further enhances the buffering effect and reduces the impact of train operation on the sleeper. The sleeve 46 protects the sleeper bolt 41 from external environmental corrosion and ensures the reliability and durability of the connection.

[0030] The base plate 1 is provided with template components 5 on all four sides. The template components 5 include a first template 6 and a second template 7. There are two first templates 6 and two second templates 7. After the first templates 6 and the second templates 7 are assembled, they form a rectangular frame. The template components 5 provide a standardized operating space for the repair process, ensuring that the grouting material can be accurately filled into the parts that need to be repaired, thereby improving the repair quality. A corner guard strip 10 is installed at the angle between the first template 6 and the second template 7. The corner guard strip 10 can effectively protect the corner of the template and prevent concrete from seeping out from the connecting component 8 during the sleeper repair process. It also prevents concrete from entering the connecting component 8, which would make it difficult to disassemble the connecting component 8, thus ensuring the smooth progress of the repair work and the normal use of the connecting component 8.

[0031] A connecting component 8 is provided between adjacent first template 6 and second template 7. The connecting component 8 includes a fixed sleeve 81 and a threaded sleeve 82 installed on the first template 6 or the second template 7. A connecting sleeve 83 is provided on the second template 7 or the first template 6. The connecting sleeve 83, the fixed sleeve 81 and the threaded sleeve 82 are connected and fixed by connecting bolts 84. The connecting component 8 ensures that the connection between the various parts of the template component 5 is firm and reliable. During the repair process, it can withstand the pressure generated by grouting and other operations, maintain the integrity and stability of the template, and its connection method is simple and easy to operate, which facilitates the installation and disassembly of the template and improves the efficiency of the repair work.

[0032] A limiting component 9 is provided between the first template 6 and the base plate 1. The limiting component 9 includes a positioning rod 91 connected to the base plate 1. The positioning rod 91 is connected to the base plate 1 through a threaded post. A baffle seat 92 is provided on the outer periphery of the positioning rod 91. A fastening bolt 93 is provided on the baffle seat 92. A longitudinal limiting strip 94 is installed on the side of the baffle seat 92 near the first template 6. The first template 6 is provided with a longitudinal limiting groove 95 that cooperates with the longitudinal limiting strip 94. The design of the limiting component 9 prevents the template from moving longitudinally during the repair process, ensuring the accuracy of the repair space. The adjustment and cooperation between the positioning rod 91, the baffle seat 92 and the fastening bolt 93 can adjust and fix the distance between the template component 5 and the base plate 1. After fixing, it can prevent the template component 5 from moving back and forth during the grouting process. The cooperation between the longitudinal limiting strip 94 and the longitudinal limiting groove 95 can prevent the template component 5 from moving left and right after the baffle seat 92 is fixed.

[0033] The repair steps in the above embodiment are as follows: Once the double-block sleeper that needs repair is identified, the original fasteners on the damaged sleeper are removed using special tools. Clean the sleepers and surrounding area, removing debris, dust, and loose concrete fragments to prepare for the installation of the repair device. Place the cushioning pad 2 and the base plate 1 in the same position. Use double-sided tape to stick the cushioning pad 2 to the lower end of the base plate 1. Ensure that the sticking is firm. Note that the several perforations on the cushioning pad 2 and the base plate 1 correspond to each other. Install a pair of gauge baffles 3 on the upper surface of the base plate 1 to ensure that the gauge baffles 3 are in the correct position. Install spring strips 31 on the upper end face of the pair of gauge baffles 3 respectively. Use T-bolts to pass through the holes on the spring strips 31 and the gauge baffles 3, and then use hexagonal nuts 33 to fix the spring strips 31 to the upper surface of the gauge baffles 3. Use sleeper bolts 41 to assemble spring washers 42, pressure shims 43, gauge adjustment blocks 44 and buffer washer sets 45 together, and then rotate sleeper bolts 41 into the sleeve. Use a water drill to precisely locate the installation hole, and use a blower to remove the chiseled and drilled concrete debris. After cleaning, apply a bonding agent to the pit. The first template 6 and the second template 7 are assembled on the outer periphery of the base plate 1 to form a rectangular frame-shaped template assembly 5. During assembly, the connecting sleeve 83 is inserted between the fixing sleeve 81 and the threaded sleeve 82 and fixed by the connecting bolt 84. Corner guard strips 10 are installed at the angle between the first template 6 and the second template 7 to prevent concrete from seeping out from the connecting component 8 during the sleeper repair process, and to prevent concrete from entering the connecting component 8, thus ensuring the smooth progress of the repair work and the normal use of the connecting component 8. The positioning rod 91 is connected to the base plate 1 through the threaded post. The position of the outer periphery baffle seat 92 of the positioning rod 91 is adjusted and fixed by the fastening bolt 93. After the baffle seat 92 is fixed, its longitudinal limiting strip 94 is located in the longitudinal limiting groove 95. Prepare the mortar according to the ratio. First, pour the mortar into the drilled hole to 2 / 3 of the hole depth. Then, vertically screw in the pre-assembled sleeve bolt. Pour mortar along the edge of the template component 5 towards the fastener until it is full. After the mortar has hardened and reached its strength, remove the formwork assembly 5, remove the mortar from the surface of the fasteners, and treat the mortar surface with an angle grinder; Once the grout has sufficient strength, the spring bar 31 should be loosened to release the internal temperature stress generated during the hydrolysis of the grout.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-block sleeper repair device, characterized in that, The system includes a base plate installed on the lower end face of the rail, a buffer pad installed on the lower end face of the base plate, a pair of gauge baffles installed on the upper surface of the base plate, a number of sleeper bolts installed on the base plate, template assemblies provided around the base plate, the template assemblies including a first template and a second template, a connecting assembly provided between adjacent first templates and second templates, and a limiting assembly provided between the first template and the base plate. The limiting component includes a positioning rod connected to the base plate. A baffle seat is provided on the outer periphery of the positioning rod. A fastening bolt is provided on the baffle seat. A longitudinal limiting strip is installed on the side of the baffle seat near the first template. A longitudinal limiting groove is provided on the first template to cooperate with the longitudinal limiting strip.

2. The double-block sleeper repair device according to claim 1, characterized in that: The connecting assembly includes a fixed sleeve and a threaded sleeve installed on a first template or a second template. A connecting sleeve is provided on the second template or the first template. The connecting sleeve, the fixed sleeve, and the threaded sleeve are connected and fixed by connecting bolts.

3. The double-block sleeper repair device according to claim 1, characterized in that: Corner guards are installed at the angle between the first template and the second template.

4. The double-block sleeper repair device according to claim 1, characterized in that: The sleeper bolt assembly includes a sleeper bolt, a spring washer and a pressure-dividing washer are provided between the sleeper bolt and the upper surface of the base plate, a gauge adjustment block and a buffer washer assembly are provided between the sleeper bolt and the lower surface of the buffer pad, and a tube sleeve is fitted around the lower end of the sleeper bolt.

5. The double-block sleeper repair device according to claim 1, characterized in that: A pair of gauge baffles are respectively equipped with elastic bars on their upper end faces, and the elastic bars are fixed to the upper surface of the gauge baffles by T-bolts and hexagonal nuts.

6. The double-block sleeper repair device according to claim 1, characterized in that: The buffer pad and the base plate are respectively provided with a number of corresponding perforations.

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