Sleeper surface roughness treatment device and treatment method

Abstract

This invention discloses a railway sleeper surface roughness treatment device and method, relating to the field of railway sleeper surface treatment technology. Key technical features include an installation area, with a traction component installed on one side of the upper end of the installation area, and a railway sleeper conveying component installed on the other side of the upper end of the installation area. A water spraying component is installed at the upper end of the installation area, outside the railway sleeper conveying component. The water spraying component includes two symmetrically installed installation boxes at the top of the installation area, with a protective cover between the two installation boxes. Two hydraulic rotating heads are installed inside the installation boxes, with a rotating disk at one end of each hydraulic rotating head and multiple nozzles installed at the other end of the rotating disk. The technical advantage of this design is that it uses a continuous conveying and processing method to treat the surface roughness of the railway sleeper body, improving overall production efficiency.

Description

Technical Field

[0001] This invention relates to the field of railway sleeper surface treatment technology, specifically to a railway sleeper surface roughness treatment device and method. Background Technology

[0002] During the use of twin-block ballastless track, we found that cracks extending outward at 45° are easily formed at the four corners of the sleepers after the integral track bed is poured. This phenomenon is very common. If it is not treated or not treated properly, micro-cracks of varying degrees will easily appear around the sleepers. With the erosion of rainwater, the micro-cracks will gradually form through cracks. Therefore, roughening the concrete surface can effectively improve the bonding force between new and old concrete and reduce the generation of micro-cracks.

[0003] Currently, there are two common processing methods: pasting roughening tape inside the model. The main problems with this process are: the roughening tape must be pasted before each model is produced, severely impacting production efficiency; the resulting rough surface has very low roughness, consisting mainly of a surface mortar layer with poor adhesion; and the roughening tape is quite thick, affecting the sleeper's shape and dimensions.

[0004] The process involves spraying a retarder into the mold's interior cavity, followed by high-pressure water jetting to remove the surface mortar layer after demolding. The main problems with this process are: it's difficult to prevent the retarder from dripping onto the bottom surface of the mold during spraying, causing retardation on the rail bearing surface as well, resulting in a rough, non-smooth surface on the finished sleeper, which does not meet specifications. After each demolding, the sides of the mold must be re-sprayed with retarder, making the process cumbersome, and the retarder can negatively impact the surface strength of the concrete. Furthermore, high-pressure water jet rinsing cannot create a uniformly rough surface, and the depth of the roughness is difficult to guarantee. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a sleeper surface roughness treatment device and method. The roughness depth can be adjusted by controlling water pressure, which can efficiently and accurately control the roughness treatment depth, thereby achieving an ideal bonding effect during secondary pouring and improving surface treatment efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sleeper surface roughness treatment device, comprising an installation area, a traction component installed on one side of the upper end of the installation area, a sleeper conveying component installed on the other side of the upper end of the installation area, and a water spraying treatment component installed at the upper end of the installation area and outside the sleeper conveying component.

[0007] The water spray treatment component includes two mounting boxes symmetrically installed at the top of the installation area, with a protective cover installed between the two mounting boxes. Inside each mounting box are two hydraulic rotating heads, one end of which is equipped with a rotating disk, and the other end of which is equipped with multiple nozzles.

[0008] Preferably, the traction component includes a mounting base plate installed on one side of the upper end of the mounting area. A mounting seat one is installed on one side of the upper end of the mounting base plate, and a transmission seat is installed on the other side of the upper end of the mounting base plate. A rotating rod one is rotatably installed between the transmission seat and the mounting seat one. A take-up and release turntable is installed on one side of the outer wall of the rotating rod one. A traction motor is installed on one side of the transmission seat. A take-up and release pull rope is wound around the inner side of the take-up and release turntable. A mounting seat two is installed on the other side of the upper end of the mounting area. A rotating rod two is installed on the upper inner side of the mounting seat two. A fixed pulley is rotatably installed in the middle of the rotating rod two.

[0009] Preferably, the sleeper conveying component includes two sliding rails installed at the top of the installation area, a conveying trolley slidably mounted above the two sliding rails, rolling rollers that cooperate with the sliding rails installed at the bottom of the conveying trolley, a sleeper body placed on top of the conveying trolley, a cover plate on the upper end of the sleeper body, side baffles installed at both edges of the top of the conveying trolley, and rope fixing seats installed at both edges of the bottom sliding direction of the conveying trolley.

[0010] Preferably, the take-up and release rope is wound with a slack at the take-up and release turntable, one end of the take-up and release rope is connected to one of the rope fixing seats via a fixed pulley, and the other end of the take-up and release rope is connected to another rope fixing seat. The direction of movement of the conveying trolley can be controlled by controlling the forward and reverse rotation of the traction motor.

[0011] Preferably, the shielding cover is tightly fitted to the upper end of the sleeper body, forming a shielding area on the upper end of the sleeper body, and the side baffle is higher than the lower edge of the sleeper body.

[0012] Preferably, the sleeper conveying component includes a conveying frame at the installation area, with rotatable conveying rollers linearly arranged above the conveying frame, and the sleeper body placed above the conveying rollers.

[0013] A method for treating the surface roughness of railway sleepers includes the following steps:

[0014] S1. Hoist the sleeper body one by one to the sleeper conveying component, with one side of the sleeper body perpendicular to the water spray direction of the nozzle;

[0015] S2, and by controlling the rotation of the sleeper conveying component, the sleeper body is pulled and conveyed;

[0016] S3. Start the water spray treatment component. The hydraulic rotating head drives the rotating disk to rotate, so that the nozzle generates a rotating high-pressure water jet. Two sets of nozzles perform two-stage water jet treatment on the sleeper body to obtain a sleeper body with a surface roughness of 2-3mm.

[0017] S4. Re-stack the surface-treated sleeper bodies.

[0018] Preferably, the traction speed in S2 is 5-10 m / min.

[0019] Preferably, in the first stage of water jet treatment in S3, the rotation speed of the rotating disk is 400-500 rpm, the water jet pressure of the nozzle is 120-160 MPa, and the roughness after treatment is 1-2 mm.

[0020] In the second stage of water jet treatment, the rotating disk rotates at 300-400 rpm, the water jet pressure of the nozzle is 80-120 MPa, and the roughness after treatment is 2-3 mm.

[0021] Compared with the prior art, the present invention provides a sleeper surface roughness treatment device and method, which has the following beneficial effects: This design adopts a continuous conveying and processing method to achieve the treatment of the surface roughness of the sleeper body, thereby improving the overall production efficiency.

[0022] The two-stage processing method allows for more precise control of the surface treatment depth of the sleeper body during the second stage, using relatively lower water jet pressure and rotation speed. This prevents the aggregate inside the sleeper body from falling off and affecting its structural strength. Furthermore, the sleeper body treated in the two stages has higher bonding strength after the second casting, solving the problem of micro-cracks of varying degrees appearing around the sleeper body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of the disassembled structure of the water spraying component in Embodiment 1 of the present invention;

[0025] Figure 3 This is a schematic diagram of the traction component in Embodiment 1 of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of mounting base two in Embodiment 1 of the present invention;

[0027] Figure 5 This is a schematic diagram of the sleeper conveying component in Embodiment 1 of the present invention;

[0028] Figure 6 This is a schematic diagram of the hydraulic rotary head in Embodiment 1 of the present invention;

[0029] Figure 7 This is a schematic diagram of the other side of the hydraulic rotary head in Embodiment 1 of the present invention;

[0030] Figure 8This is a schematic diagram of the sleeper surface after the treatment according to the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0032] Figure 10 This is a schematic diagram of the sleeper conveying component in Embodiment 2 of the present invention.

[0033] In the diagram: 1. Installation area;

[0034] 2. Water spray treatment components; 21. Mounting housing; 22. Protective cover; 23. Hydraulic rotating head; 24. Rotary disc; 25. Spray nozzle;

[0035] 3. Traction components; 31. Mounting base plate; 32. Transmission seat; 33. Mounting seat one; 34. Rotating rod one; 35. Retracting turntable; 36. Traction motor; 37. Retracting rope; 38. Mounting seat two; 39. Rotating rod two; 391. Fixed pulley;

[0036] 4. Sleeper conveying components; 41. Conveying trolley; 42. Rolling rollers; 43. Side baffles; 44. Sleeper body; 45. Cover plate; 46. Sliding track; 47. Pull rope fixing seat; 48. Conveying frame; 49. Conveying rollers. Detailed Implementation

[0037] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0038] Please see Figure 1-8 This invention provides a technical solution for a railway sleeper surface roughness treatment device and method:

[0039] Example 1: A sleeper surface roughness treatment device includes an installation area 1, a traction component 3 installed on one side of the upper end of the installation area 1, a sleeper conveying component 4 installed on the other side of the upper end of the installation area 1, and a water spraying component 2 installed at the upper end of the installation area 1 and outside the sleeper conveying component 4.

[0040] The water spray treatment component 2 includes two mounting boxes 21 symmetrically installed at the top of the mounting area 1. A protective cover 22 is installed between the two mounting boxes 21. Two hydraulic rotating heads 23 are installed inside the mounting boxes 21. A rotating disk 24 is provided at one end of the hydraulic rotating head 23. Multiple nozzles 25 are installed at one end of the rotating disk 24. A high-pressure pump is used to supply water to the nozzles 25.

[0041] The traction component 3 includes a mounting base plate 31 installed on one side of the upper end of the mounting area 1. A mounting seat 33 is installed on one side of the upper end of the mounting base plate 31. A transmission seat 32 is installed on the other side of the upper end of the mounting base plate 31. A rotating rod 34 is rotatably installed between the transmission seat 32 and the mounting seat 33. A take-up and release turntable 35 is installed on one side of the outer wall of the rotating rod 34. A traction motor 36 is installed on one side of the transmission seat 32. A take-up and release pull rope 37 is wound around the inner side of the take-up and release turntable 35. A mounting seat 38 is installed on the other side of the upper end of the mounting area 1. A rotating rod 39 is installed on the upper inner side of the mounting seat 38. A fixed pulley 391 is rotatably installed in the middle of the rotating rod 39.

[0042] The sleeper conveying component 4 includes two sliding rails 46 installed at the top of the installation area 1. A conveying trolley 41 is slidably mounted above the two sliding rails 46. Rolling rollers 42 that cooperate with the sliding rails 46 are installed at the bottom of the conveying trolley 41. The sleeper body 44 is placed on top of the conveying trolley 41. A cover plate 45 is provided on the upper end of the sleeper body 44. Side baffles 43 are installed on both edges of the top of the conveying trolley 41. Pull rope fixing seats 47 are installed on both edges of the bottom sliding direction of the conveying trolley 41. It should be noted that the function of the sleeper conveying component 4 is to convey the sleeper body 44. The sleeper conveying component 4 is not the only limitation of the conveying method. It can achieve continuous conveying of the sleeper body 44. The function of the cover plate 45 is to cover the upper end of the sleeper body 44 to prevent the material from falling off and affecting the overall aesthetics.

[0043] The take-up and release pull rope 37 is located at the take-up and release turntable 35 with a slack in winding. One end of the take-up and release pull rope 37 is connected to one of the pull rope fixing seats 47 via the fixed pulley 391. The other end of the take-up and release pull rope 37 is connected to another pull rope fixing seat 47. The direction of movement of the conveying trolley 41 can be controlled by controlling the forward and reverse rotation of the traction motor 36.

[0044] The cover plate 45 fits tightly against the upper end of the sleeper body 44, forming a shielding area on the upper end of the sleeper body 44 to ensure that the upper part is not impacted by water flow, making the upper part of the sleeper body 44 more intact and more aesthetically pleasing. The side baffle 43 is higher than the lower edge of the sleeper body 44 to prevent the lower corners from being washed away.

[0045] In embodiment 2, the sleeper conveying component 4 includes a conveying frame 48 at the installation area 1, with rotatable conveying rollers 49 linearly arranged above the conveying frame 48, and a sleeper body 44 placed above the conveying rollers 49.

[0046] Example 3: A method for treating the surface roughness of railway sleepers, comprising the following steps:

[0047] S1. Hoist the sleeper bodies 44 one by one to the sleeper conveying component 4, with one side of the sleeper body 44 perpendicular to the water spray direction of the nozzle 25.

[0048] S2, and by controlling the rotation of the sleeper conveying component 4, the sleeper body 44 is pulled and conveyed;

[0049] S3. Start the water spray treatment component 2. Drive the rotating disk 24 to rotate through the hydraulic rotating head 23, so that the nozzle 25 generates a rotating high-pressure water jet. The two sets of nozzles 25 perform two-stage water jet treatment on the sleeper body 44 to obtain a sleeper body 44 with a surface roughness of 2-3mm.

[0050] S4. Re-stack the surface-treated sleeper bodies 44.

[0051] The traction speed in S2 is 5-10 m / min, which ensures that the water jet can treat the surface of the sleeper body 44 without causing excessive treatment depth and aggregate loss.

[0052] In the first stage of water jet treatment in S3, the rotation speed of the rotating disk 24 is 400-500 rpm, the water jet pressure of the nozzle 25 is 120-160 MPa, and the roughness after treatment is 1-2 mm.

[0053] In the second stage of water jet treatment, the rotation speed of the rotating disk 24 is 300-400 rpm, the water jet pressure of the nozzle 25 is 80-120 MPa, and the roughness after treatment is 2-3 mm.

[0054] Bond strength test procedure:

[0055] Experimental preparation:

[0056] Three groups of 150*150*150mm test blocks were prepared. The first group underwent surface roughening using the equipment of this invention, with only a first-stage water jet treatment to a depth of 1-2mm. The second group was not treated. The third group underwent surface roughening using the equipment of this invention, followed by two stages of water jet treatment to a depth of 2-3mm. Both groups were then subjected to secondary casting to form 600*150*150mm flexural strength test blocks. Bond strength tests were conducted on the test blocks that reached 7 days of age. The fracture surfaces in all tests were the interface between the old and new concrete. The test results are as follows:

[0057]

[0058] The test data above shows that after the sleeper body 44 is surface-treated by the two-stage water jet of the present invention, the bonding strength of the sleeper after secondary casting is greatly improved, thereby solving the problem that micro-cracks of different degrees are prone to appear around the sleeper body 44.

[0059] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A method for treating the surface roughness of railway sleepers using a device, comprising an installation area (1), characterized in that: A sleeper conveying component (4) is installed on the other side of the upper end of the installation area (1). A water spraying component (2) is installed on the upper end of the installation area (1) and on the outside of the sleeper conveying component (4). A sleeper body (44) is placed at the sleeper conveying component (4). The water spray treatment component (2) includes two mounting boxes (21) symmetrically installed at the top of the mounting area (1), a protective cover (22) is installed between the two mounting boxes (21), and two hydraulic rotating heads (23) are installed inside the mounting boxes (21). A rotating disk (24) is provided at one end of the hydraulic rotating head (23), and multiple nozzles (25) are installed at one end of the rotating disk (24). Specifically, the processing steps are as follows: S1. Hoist the sleeper body (44) one by one to the sleeper conveying component (4), with one side of the sleeper body (44) perpendicular to the water spray direction of the nozzle (25); S2, and by controlling the rotation of the sleeper conveying component (4), the sleeper body (44) is traction and conveyed; S3. Start the water spray treatment component (2), drive the rotating disk (24) to rotate through the hydraulic rotating head (23), so that the high-pressure water jet is generated at the nozzle (25). The two sets of nozzles (25) perform two-stage water jet treatment on the sleeper body (44) to obtain a sleeper body (44) with a surface roughness of 2-3mm. S4. Re-stack the surface-treated sleeper bodies (44).

2. The processing method of the sleeper surface roughness treatment equipment according to claim 1, characterized in that: A traction component (3) is also installed on one side of the upper end of the installation area (1). The traction component (3) includes an installation base plate (31) installed on one side of the upper end of the installation area (1). An installation seat (33) is installed on one side of the upper end of the installation base plate (31). A transmission seat (32) is installed on the other side of the upper end of the installation base plate (31). A rotating rod (34) is rotatably installed between the transmission seat (32) and the installation seat (33). A take-up turntable (35) is installed on one side of the outer wall of the rotating rod (34). A traction motor (36) is installed on one side of the transmission seat (32). A take-up pull rope (37) is wound around the inner side of the take-up turntable (35). An installation seat (38) is installed on the other side of the upper end of the installation area (1). A rotating rod (39) is installed on the upper inner side of the installation seat (38). A fixed pulley (391) is rotatably installed in the middle of the rotating rod (39).

3. The method for treating the surface roughness of railway sleepers according to claim 2, characterized in that: The sleeper conveying component (4) includes two sliding rails (46) installed at the top of the installation area (1). A conveying trolley (41) is slidably arranged above the two sliding rails (46). A rolling roller (42) that works with the sliding rails (46) is installed at the bottom of the conveying trolley (41). A sleeper body (44) is placed above the conveying trolley (41). A cover plate (45) is provided on the upper end of the sleeper body (44). Side baffles (43) are installed at both edges of the top of the conveying trolley (41). A rope fixing seat (47) is installed at both edges of the bottom sliding direction of the conveying trolley (41).

4. The method for treating surface roughness of railway sleepers according to claim 3, characterized in that: The take-up and release pull rope (37) is located at the take-up and release turntable (35) with a slack in winding. One end of the take-up and release pull rope (37) is connected to one of the pull rope fixing seats (47) via a fixed pulley (391), and the other end of the take-up and release pull rope (37) is connected to another pull rope fixing seat (47). The direction of movement of the conveying trolley (41) can be controlled by controlling the forward and reverse rotation of the traction motor (36).

5. The method for treating surface roughness of railway sleepers according to claim 3, characterized in that: The shielding cover (45) is tightly fitted to the upper end of the sleeper body (44), and the shielding cover (45) forms a shielding area on the upper end of the sleeper body (44). The side baffle (43) is higher than the lower edge of the sleeper body (44).

6. The method for treating surface roughness of railway sleepers according to claim 1, characterized in that: The sleeper conveying component (4) includes a conveying frame (48) at the installation area (1), with rotatable conveying rollers (49) linearly arranged above the conveying frame (48), and a sleeper body (44) placed above the conveying rollers (49).

7. The method for treating surface roughness of railway sleepers according to claim 1, characterized in that: The traction speed in S2 is 5-10 m / min.

8. The method for treating surface roughness of railway sleepers according to claim 1, characterized in that: In the first stage of water jet treatment in S3, the rotation speed of the rotating disk (24) is 400-500 rpm, the water jet pressure of the nozzle (25) is 120-160 MPa, and the roughness after treatment is 1-2 mm. In the second stage of water jet treatment, the rotation speed of the rotating disk (24) is 300-400 rpm, the water jet pressure of the nozzle (25) is 80-120 MPa, and the roughness after treatment is 2-3 mm.

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