Steel bar positioning tool for curve section of ballastless track

Abstract

The utility model discloses a reinforcing steel bar positioning tool for a curve section of a ballastless track, which is mainly used for binding reinforcing steel bars with different sizes in a transverse hook of a base plate of the curve section ballastless track so as to prevent the reinforcing steel bars from being used mistakenly. The device comprises a transportation box, and a plurality of storage grooves are formed in the transportation box and used for storing different types of steel bars in a classified mode to correspond to different use scenes below. The transport case is erected on the two sides of the track through the front supporting legs and the rear supporting legs, and the tools can move along the track through the idler wheels in the supporting legs. The transport case is provided with a protective shell, a rotating shaft in the shell is matched with a rotating mechanism in the front supporting leg, and a handle is rotated to drive the rotating shaft and the first bevel gear to change the direction of the rollers to achieve turning. The front supporting legs are further provided with damping mechanisms, and vibration of the rolling wheels is buffered through limiting rods, notches and springs. The tool effectively solves the problems that when a traditional steel bar conveying tool is used for curve section construction, steel bars are prone to being mixed, turning is inconvenient, and vibration is large, and the quality and efficiency of ballastless track curve section steel bar binding construction are improved.

Description

Technical Field

[0001] This utility model relates to the field of track construction equipment technology, and in particular to a steel bar positioning tool for ballastless track curved sections. Background Technology

[0002] Ballastless track on curved sections is extremely common in railway construction, and its base plate transverse hooks require steel reinforcement. During train operation, curved sections generate significant centrifugal force. By reinforcing the transverse hooks of the base plate with steel reinforcement, the overall integrity and stability of the track structure can be effectively enhanced, ensuring that the ballastless track maintains a good condition under long-term complex stress conditions, thus guaranteeing the safe and stable operation of trains.

[0003] On the one hand, traditional steel bar transport tools cannot properly classify and locate steel bars when the track cross-section height changes gradually on curved sections and different types of steel bars are required. This can easily lead to workers confusing different types of steel bars when picking them up, thus affecting construction quality and progress. On the other hand, traditional tools are not good at turning flexibility and shock absorption. When moving on complex terrain conditions on construction sites, they are difficult to turn easily and quickly, and the vibration is relatively large, which may cause the transported steel bars to shift or even be damaged, which is not conducive to efficient and safe construction. Utility Model Content

[0004] The purpose of this utility model is to provide a steel bar positioning tool for curved sections of ballastless track, so as to solve the problems of difficult steel bar classification and positioning, inconvenience of turning traditional transportation tools, and insufficient shock absorption in the construction of ballastless track on curved sections.

[0005] This utility model is achieved through the following technical solution:

[0006] A steel bar positioning fixture for a ballastless track curve section includes a transport box and multiple storage slots on the transport box. The bottom of the transport box is fixedly connected to a front support leg and a rear support leg. The bottom of the front support leg and the rear support leg are provided with rollers. A protective shell is fixed to the side of the transport box. The inner wall of the protective shell is rotatably provided with a rotating shaft. The front support leg is hollow and has a rotating mechanism for adjusting the direction of the rollers inside, as well as a shock-absorbing mechanism for buffering the vibration of the rollers.

[0007] Preferably, there is a pair of front support legs, and the rotating mechanism includes a pair of first bevel gears fixedly sleeved on the rotating shaft. Each front support leg is rotatably provided with a connecting rod, and the upper end of the connecting rod is fixed with a second bevel gear that meshes with the first bevel gear. When the first bevel gear drives the second bevel gear to rotate, it can change the forward direction of the roller.

[0008] Preferably, the shock-absorbing mechanism is disposed between the connecting rod and the roller; a sleeve is provided at the end of the connecting rod away from the second bevel gear, the sleeve has a notch, the roller is rotatably connected to the sleeve, the shock-absorbing mechanism includes a limiting rod provided on the connecting rod, the notch can prevent the limiting rod from falling off; a spring is also provided between the sleeve and the connecting rod.

[0009] Preferably, one end of the rotating shaft is rotatably connected to the inner wall of the protective shell, and the other end of the rotating shaft is fixed with a turntable, on which a handle is fixed.

[0010] Preferably, the first bevel gear and the second bevel gear have the same dimensions.

[0011] Preferably, the notch and the limiting rod form a first movable connecting unit. With the axis of the connecting rod as a reference, the steel bar positioning fixture for the ballastless track curve section further includes a second movable connecting unit that is mirror-symmetrical to the first movable connecting unit.

[0012] Preferably, the connecting rod is a cylinder, and the axis of the spring coincides with the axis of the connecting rod.

[0013] Preferably, the length of the notch perpendicular to the ground is greater than the free height of the spring.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects: The transport box of this utility model is equipped with a protective shell to reduce external interference. A rotating shaft rotatably mounted on the inner wall of the protective shell cooperates with a rotating mechanism inside the front support leg. Rotating the handle drives the rotating shaft and the first bevel gear to rotate, thereby changing the direction of the rollers and allowing the tooling to flexibly adapt to the complex trajectory of curved tracks. The shock-absorbing mechanism inside the front support leg, utilizing the cooperation of the limiting rod and the notch, as well as the elasticity of the spring, effectively buffers the vibration of the rollers, reducing the impact of bumps caused by uneven tracks, ensuring the stability of different types of steel bars in the storage slots of the transport box during movement, avoiding damage caused by steel bar displacement or collisions, and greatly improving the safety and accuracy of steel bar transportation. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the present invention, intended to show the working state of the tooling of the present invention;

[0018] Figure 3This is a schematic diagram of the rotating mechanism of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A.

[0020] The reference numerals in the attached figures represent:

[0021] 10. Transport box; 101. Storage compartment; 11. Rear support leg; 12. Front support leg.

[0022] 20. Protective case; 21. Turntable; 22. Handle.

[0023] 30. Shaft; 31. First bevel gear; 32. Second bevel gear.

[0024] 50. Connecting rod; 51. Limiting rod; 52. Sleeve; 53. Roller; 54. Spring; 55. Notch.

[0025] 60. Ballastless track. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0027] Example 1:

[0028] like Figures 1 to 4 As shown, this embodiment provides a steel bar positioning fixture for ballastless track curves, including a transport box 10 and multiple storage slots 101 provided on the transport box 10. The bottom of the transport box 10 is fixedly connected to a front support leg 12 and a rear support leg 11. The bottom of the front support leg 12 and the rear support leg 11 is provided with rollers 53. A protective shell 20 is fixed to the side of the transport box 10. A rotating shaft 30 is rotatably provided on the inner wall of the protective shell 20. The front support leg 12 is hollow and has a rotating mechanism for adjusting the direction of the rollers 53 inside, as well as a shock-absorbing mechanism for buffering the vibration of the rollers 53.

[0029] This solution aims to address issues such as incorrect rebar handling, inconvenient turning of transport equipment, and significant vibration during the binding of transverse hook rebars on the base plate of the ballastless track 60 on curved sections, due to the need for different types of rebars caused by the gradual change in track cross-sectional height. While not explicitly mentioned in the solution, necessary structural elements include conventional structures such as connectors linking various components to ensure a stable connection. During operation, the worker pushes the transport box 10 along the track. When a turn is needed, the worker rotates the handle 22 connected to the rotating shaft 30. The rotating shaft 30 drives the first bevel gear 31 fixed thereon to rotate, which in turn causes the second bevel gear 32, matched with it, on the connecting rod 50 inside the front support leg 12 to rotate, changing the direction of the roller 53 and enabling the equipment to turn. Simultaneously, if the roller 53 encounters vibration during movement, the sleeve 52 moves relative to the connecting rod 50, the limiting rod 51 slides within the notch 55, and the spring 54 provides cushioning and shock absorption. Thus, in practical applications, this not only prevents workers from picking up the wrong rebars but also allows the equipment to turn flexibly and transport rebars stably. For the rotating mechanism, alternative solutions such as worm gear transmission can be used to change the direction of roller 53; for the shock absorption mechanism, rubber shock-absorbing pads can be used to replace the combination of spring 54 and limit rod 51-notch 55 to achieve the shock absorption effect.

[0030] The transport box 10 is equipped with multiple storage slots 101. The dimensions of the storage slots 101 need to be precisely designed according to the thickness and length of different types of reinforcing bars. For example, for thicker and longer reinforcing bars, the depth and width of the storage slots 101 are increased accordingly to ensure that the reinforcing bars can be placed stably and will not be squeezed or deformed. For thinner and shorter reinforcing bars, the dimensions of the storage slots 101 are appropriately reduced to improve space utilization. The number of storage slots 101 is determined according to the types of reinforcing bars required in the construction of the ballastless track 60 on the curved section. Each type of reinforcing bar corresponds to one storage slot 101, achieving precise classification and storage. At the same time, the inner wall of the storage slots 101 can be made of anti-slip material to prevent the reinforcing bars from sliding during transportation.

[0031] In this embodiment, there is a pair of front support legs 12, and the rotating mechanism includes a pair of first bevel gears 31 fixedly sleeved on the rotating shaft 30. Each front support leg 12 is rotatably provided with a connecting rod 50. The upper end of the connecting rod 50 is fixed with a second bevel gear 32 that meshes with the first bevel gear 31. When the first bevel gear 31 drives the second bevel gear 32 to rotate, it can change the forward direction of the roller 53.

[0032] When the rotating shaft 30 rotates, it drives the first bevel gear 31 to rotate. Since the first bevel gear 31 matches the second bevel gear 32, the second bevel gear 32 rotates accordingly, which in turn drives the connecting rod 50 to rotate, thus adjusting the direction of the roller 53. This structure can accurately transmit power and ensure reliable execution of turning actions. An alternative solution is to use a chain and sprocket drive to connect the rotating shaft 30 and the connecting rod 50, which can also achieve power transmission and change the direction of the roller 53.

[0033] In this embodiment, the shock absorption mechanism is located between the connecting rod 50 and the roller 53; the end of the connecting rod 50 away from the second bevel gear 32 is provided with a sleeve 52, the sleeve 52 is provided with a notch 55, the roller 53 is rotatably connected to the sleeve 52, the shock absorption mechanism includes a limiting rod 51 provided on the connecting rod 50, the notch 55 can prevent the limiting rod 51 from falling off; a spring 54 is also provided between the sleeve 52 and the connecting rod 50.

[0034] The vibration of roller 53 causes sleeve 52 to move up and down relative to connecting rod 50, limiting rod 51 moves vertically within notch 55, and spring 54 is compressed or stretched to absorb vibration energy. This vibration damping method can effectively reduce the impact of vibration on tooling and reinforcing bars. An alternative solution is to use a hydraulic shock absorber instead of spring 54, installed between sleeve 52 and connecting rod 50 to achieve vibration damping.

[0035] In this embodiment, one end of the rotating shaft 30 is rotatably connected to the inner wall of the protective shell 20, and the other end of the rotating shaft 30 is fixed with a turntable 21, on which a handle 22 is fixed. The worker holds the handle 22 and rotates the turntable 21, causing the connected rotating shaft 30 to rotate, making operation convenient. If replacement is needed, a motor can be installed to drive the rotating shaft 30 to rotate, achieving automatic control.

[0036] The work process is as follows:

[0037] During the construction of the ballastless track 60 on the curved section, workers push transport boxes 10 containing different types of steel bars, allowing them to move along the track via rollers 53 on the front and rear support legs 11. When encountering a turn, workers turn handles 22 connected to the rotating shaft 30, causing the rotating shaft 30 and the first bevel gear 31 fixed thereon to rotate. The first bevel gear 31 drives the second bevel gear 32 on the connecting rod 50 inside the front support leg 12, changing the angle of the connecting rod 50 and adjusting the direction of the rollers 53 to complete the turning operation. During the entire movement, if the rollers 53 vibrate due to uneven track, the sleeve 52 moves relative to the connecting rod 50, the limiting rod 51 slides within the notch 55, and the spring 54 is compressed or stretched to absorb shock, ensuring the stability of the steel bars in the storage trough 101 until the corresponding transverse hook position is reached, at which point workers retrieve the correct type of steel bar for binding.

[0038] In this embodiment, the first bevel gear 31 and the second bevel gear 32 are the same size. Because the first and second bevel gears are the same, their linear velocity and angular velocity are consistent during transmission, ensuring the smoothness of the roller 53's turning process.

[0039] Example 2:

[0040] In this embodiment, the notch 55 and the limiting rod 51 form a first movable connecting unit. Taking the axis of the connecting rod 50 as a reference, the steel reinforcement positioning fixture for ballastless track curves also includes a second movable connecting unit that is mirror-symmetrical to the first movable connecting unit. During vibration, the two symmetrical movable connecting units work together to enhance the vibration damping effect and structural stability. Alternatively, multiple asymmetrically distributed limiting rod 51-notch 55 units can be set; a reasonable layout can also improve vibration damping performance.

[0041] In this embodiment, the connecting rod 50 is a cylinder, and the axis of the spring 54 coincides with the axis of the connecting rod 50. During operation, the spring 54 is compressed or stretched along the axis of the connecting rod 50, and the force is transmitted evenly, improving the reliability of shock absorption. Elastic elements of other shapes can be used, as long as they can effectively buffer vibrations along the axis of the connecting rod 50.

[0042] In this embodiment, the length of the notch 55 perpendicular to the ground is greater than the free height of the spring 54. When the spring 54 is compressed or stretched, the length of the notch 55 perpendicular to the ground is greater than the free height of the spring 54, providing sufficient deformation space for the spring 54 and ensuring the shock absorption effect.

[0043] When this fixture is applied to rebar tying scenarios with transverse hooks, multiple storage slots 101 can classify and store rebar according to the different rebar types required at different positions on the curved ballastless track 60, fundamentally eliminating the possibility of workers picking up the wrong rebar and ensuring construction quality. The rotating mechanism inside the front support leg 12 allows the fixture to turn flexibly on the curved track, improving construction efficiency; the shock absorption mechanism effectively buffers vibrations, preventing damage to the rebar due to bumps during transportation. The protective shell 20 protects the internal critical structure, extending the service life of the fixture and comprehensively supporting efficient, safe, and high-quality rebar tying operations.

[0044] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A steel bar positioning fixture for a ballastless track curve section, comprising a transport box (10) and a plurality of storage slots (101) disposed on the transport box (10), wherein a front support leg (12) and a rear support leg (11) are fixedly connected to the bottom of the transport box (10), and the bottom of the front support leg (12) and the rear support leg (11) are provided with rollers (53), characterized in that, The side of the transport box (10) is fixed with a protective shell (20), and the inner wall of the protective shell (20) is rotatably provided with a rotating shaft (30); the front support leg (12) is hollow, and a rotating mechanism for adjusting the direction of the roller (53) is provided inside, as well as a shock-absorbing mechanism for buffering the vibration of the roller (53).

2. The steel reinforcement positioning fixture for a ballastless track curve section according to claim 1, characterized in that, The front support leg (12) has a pair, and the rotating mechanism includes a pair of first bevel gears (31) fixedly sleeved on the rotating shaft (30). The front support leg (12) is rotatably provided with a connecting rod (50), and the upper end of the connecting rod (50) is fixed with a second bevel gear (32) that meshes with the first bevel gear (31). When the first bevel gear (31) drives the second bevel gear (32) to rotate, it can change the forward direction of the roller (53).

3. The steel bar positioning fixture for a ballastless track curve section according to claim 2, characterized in that, The shock-absorbing mechanism is located between the connecting rod (50) and the roller (53); a sleeve (52) is provided at the end of the connecting rod (50) away from the second bevel gear (32), and a notch (55) is provided on the sleeve (52). The roller (53) is rotatably connected to the sleeve (52). The shock-absorbing mechanism includes a limiting rod (51) provided on the connecting rod (50), and the notch (55) can prevent the limiting rod (51) from falling off. A spring (54) is also provided between the sleeve (52) and the connecting rod (50).

4. The steel bar positioning fixture for a ballastless track curve section according to claim 2, characterized in that, One end of the rotating shaft (30) is rotatably connected to the inner wall of the protective shell (20), and the other end of the rotating shaft (30) is fixed with a turntable (21), and a handle (22) is fixed on the turntable (21).

5. The steel bar positioning fixture for a ballastless track curve section according to claim 2, characterized in that, The first bevel gear (31) and the second bevel gear (32) have the same dimensions.

6. The steel bar positioning fixture for a ballastless track curve section according to claim 3, characterized in that, The notch (55) and the limiting rod (51) form a first movable connection unit. Taking the axis of the connecting rod (50) as a reference, the steel bar positioning fixture for the ballastless track curve section also includes a second movable connection unit that is mirror-symmetrical to the first movable connection unit.

7. The steel reinforcement positioning fixture for a ballastless track curve section according to claim 3, characterized in that, The connecting rod (50) is a cylinder, and the axis of the spring (54) coincides with the axis of the connecting rod (50).

8. A steel bar positioning fixture for a ballastless track curve section according to claim 3, characterized in that, The length of the notch (55) perpendicular to the ground is greater than the free height of the spring (54).

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