Auxiliary roadbed slab positioning tool for replacing elastic cushion layer

Abstract

The utility model discloses a roadbed slab positioning auxiliary tool for replacing an elastic cushion layer. The tool is mainly composed of a screw rod, a first baffle, a positioning plate and an abutting mechanism. The two ends of the screw are movably connected with the first baffles, and the distance is adjusted through matching of the nut and the external thread section of the screw. The positioning plate is composed of a primary plate and a secondary plate, is fixed to the first baffle and provides accurate position reference for installation of the base plate. The abutting mechanism comprises a sleeve, a rack plate, a gear section and the like, when the screw rotates, the rack plate is driven to abut against the base plate through gear and rack transmission, and a spring provides buffering. The tool can assist in guiding the relative position between the falling roadbed slab and the base plate, the installation precision between the roadbed slab and the base plate is improved, the installation efficiency and the track quality are remarkably improved, and the fault risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to ballastless track technical field especially relates to a track bed board positioning auxiliary frock for replacing elastic cushion layer. BACKGROUND

[0002] In ballastless track system, elastic cushion layer is arranged between track bed board and base plate. Its main function is to provide necessary elastic buffer, effectively absorb vibration and impact energy generated in train operation process, thereby reducing damage to track structure and surrounding infrastructure, and guaranteeing stable operation and long-term stability of track system.

[0003] The conventional track bed board positioning auxiliary frock for replacing elastic cushion layer has many deficiencies in track bed board installation operation of ballastless track curved section. On the one hand, it is difficult to ensure that the falling track bed board is reset with the adjacent base plate. In the installation process, there is lack of effective positioning and adjusting mechanism, which leads to large gap deviation and affects the overall performance of the track. On the other hand, the fixation stability of the track bed board is poor, and the existing abutting mechanism often cannot flexibly adjust the abutting force according to the actual demand, and lacks buffering measures. SUMMARY

[0004] The utility model aims at providing a track bed board positioning auxiliary frock for replacing elastic cushion layer to solve the problem that the conventional track bed board positioning auxiliary frock for replacing elastic cushion layer is difficult to assist guiding the position between the falling track bed board and the base plate and lacks fixation stability when installing in ballastless track curved section.

[0005] The utility model realizes the following technical scheme:

[0006] A track bed board positioning auxiliary frock for replacing elastic cushion layer, comprising a screw rod and a first baffle movably connected to both ends of the screw rod, a positioning plate is fixedly connected to the first baffle, the positioning plate is composed of a primary plate and a secondary plate; an external thread section is arranged on the screw rod, a nut is arranged on the side surface of the first baffle and engaged with the external thread section; a abutting mechanism is fixedly connected to the positioning plate, and the abutting mechanism can support the base plate when the screw rod rotates.

[0007] Preferably, a guide plate is fixedly connected to the parallel section of the positioning plate, and the guide plate has an inclination angle ranging from 7° to 13° in the direction from the positioning plate to the guide plate.

[0008] Preferably, the abutting mechanism comprises a sleeve fixed to the secondary plate, an opening is arranged on the side of the sleeve close to the screw rod, a rack plate is slidably arranged in the sleeve, and a gear section engaged with the rack plate is fixed to the screw rod.

[0009] When the screw rotates, the rack plate can be driven to move close to or away from the base plate.

[0010] Preferably, one end of the rack plate is slidingly arranged inside the sleeve, the other end of the rack plate is provided with a second baffle, a spring is arranged between the rack plate and the second baffle, one end of the spring is fixed to the end of the second baffle, and the other end of the spring is fixed to the second baffle.

[0011] Preferably, the angle between the length axis of the primary plate and the length axis of the secondary plate is 90°.

[0012] Preferably, the length axis of the primary plate is parallel to the length axis of the first baffle.

[0013] Preferably, the modulus of the teeth on the rack plate is equal to the modulus of the teeth on the gear segment.

[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects: the utility model discloses a screw and a nut are matched to adjust the distance between the first baffle, and different installation requirements can be adapted. The positioning plate is composed of a primary plate and a secondary plate, and provides accurate position reference for track bed plate installation, and ensures that the track bed plate and the adjacent base plate are accurately reset. The abutting mechanism can support the base plate when the screw rotates, enhances the fixing stability, and effectively improves the base plate installation efficiency and the overall quality of the track. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the embodiments of the utility model and form part of the present application, and do not constitute limitation to the embodiments of the utility model.

[0016] Figure 1 It is the overall structure schematic view of the utility model;

[0017] Figure 2 It is the side view structure schematic view of the utility model;

[0018] Figure 3 It is Figure 1 The enlarged view of A of the utility model aims at showing the structure schematic view of the abutting mechanism;

[0019] Figure 4 It is the setting direction of the utility model in actual use state, aiming at showing the relative position of the positioning plate at the four corners of the base plate.

[0020] The represented by the reference signs is:

[0021] 10, the first baffle, 11, the screw, 111, the gear segment, 12, the nut, 13, the positioning plate, 131, the guide plate, 14, the sleeve, 15, the rack plate, 16, the second baffle, 17, the spring. Detailed Implementation

[0022] 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. Unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Words such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, without excluding other elements or objects.

[0023] Example 1:

[0024] like Figures 1 to 4 As shown, this embodiment provides a positioning auxiliary tool for replacing the elastic pad layer of the track bed slab, including a screw 11 and a first baffle 10 movably connected to both ends of the screw 11. A positioning plate 13 is fixedly connected to the first baffle 10, and the positioning plate 13 is composed of a primary plate and a secondary plate. The screw 11 is provided with an external thread section, and the side of the first baffle 10 is provided with a nut 12 that meshes with the external thread section. A clamping mechanism is fixedly connected to the positioning plate 13. When the screw 11 rotates, it can drive the clamping mechanism to support the base plate.

[0025] This solution aims to address the challenge of reinstalling the track slab after replacing the elastic pad layer in the curved section of ballastless track, specifically the difficulty in guiding the lowered track slab towards alignment and stability with the adjacent base plate. In practice, an anti-slip pad can be installed at the contact point between the first baffle 10 and the base plate to enhance friction. During operation, the first baffle 10 is first pressed against both sides of the already installed base plate. The distance is adjusted using nuts 12 and screws 11, and the positioning plate 13 provides a precise positional reference for the installation of the new base plate. After installation, the screw 11 rotates, driving the clamping mechanism to support the base plate, significantly improving installation accuracy and stability. An alternative solution is to design the positioning plate 13 with an adjustable angle to accommodate curved sections of ballastless track with varying curvatures.

[0026] In this embodiment, a guide plate 131 is fixedly connected to the parallel section of the positioning plate 13, and the guide plate 131 has an inclination angle ranging from 7° to 13° along the direction from the positioning plate 13 to the guide plate 131.

[0027] In actual implementation, the guide plate 131 is installed on the parallel section of the positioning plate 13, and the guide plate 131 is made of high-strength metal material to ensure its durability. When installing, the guide plate 131 needs to be accurately measured and ensured to have an inclination angle of 7°-13° along the direction from the positioning plate 13 to the guide plate 131. During the installation process of the track bed plate, the inclination angle of the guide plate 131 can guide the track bed plate to smoothly enter the installation position defined by the positioning plate 13, thereby improving the installation efficiency and accuracy and avoiding the track bed plate from being stuck or deviated during installation.

[0028] In the embodiment, the abutting mechanism includes a sleeve 14 fixed on the secondary plate, the sleeve 14 is provided with an opening on the side close to the screw rod 11, a rack plate 15 is slidably arranged in the sleeve 14, and a gear segment 111 engaged with the rack plate 15 is fixed on the screw rod 11. When the screw rod 11 rotates, the rack plate 15 can be driven to approach or move away from the base plate.

[0029] In implementation, the sleeve 14 is welded and fixed on the secondary plate by metal material, and the gear segment 111 on the screw rod 11 and the teeth of the rack plate 15 need to be accurately processed to ensure that the modulus is equal and the engagement is accurate. When the screw rod 11 rotates, the rack plate 15 slides in the sleeve 14 through the engagement of the gear segment 111 and the rack plate 15, thereby approaching or moving away from the base plate.

[0030] In the embodiment, one end of the rack plate 15 is slidably arranged in the sleeve 14, the other end of the rack plate 15 is provided with a second baffle 16, a spring 17 is arranged between the second baffle 16 and the rack plate 15, one end of the spring 17 is fixed on the end of the second baffle 16, and the other end of the spring 17 is fixed on the second baffle 16.

[0031] In actual implementation, the second baffle 16 is installed on the end of the rack plate 15, and the spring 17 is fixed on the second baffle 16 and the rack plate 15 at both ends. When the screw rod 11 drives the rack plate 15 to abut against the base plate, the spring 17 plays a buffering role to avoid damage to the track bed plate caused by rigid contact. At the same time, the elasticity of the spring 17 can also adapt to the slight deformation of the track bed plate during use, and maintain a continuous abutting force. An alternative solution is to use a rubber buffer block instead of the spring 17, but attention should be paid to selecting a rubber material with appropriate hardness and elasticity.

[0032] Working process: First, abut the first baffle 10 against both sides of the installed base plate, and determine the appropriate distance through the adjustment of the nut 12 on the screw rod 11; then, the track bed plate to be installed is placed between the positioning plates 13 according to the position of the positioning plate 13; subsequently, rotate the screw rod 11, the screw rod 11 drives the gear segment 111 to rotate, the gear segment 111 engages with the rack plate 15, the rack plate 15 slides in the sleeve 14 to approach the base plate, the spring 17 between the second baffle 16 and the rack plate 15 provides a buffering abutting force, the fixation of the track bed plate is completed, and the guide plate 131 assists the track bed plate to smoothly locate during the installation process.

[0033] Embodiment 2:

[0034] In this embodiment, the angle between the length axis of the primary plate and the length axis of the secondary plate is 90°. This enables the positioning plate 13 to accurately position the base plate in two mutually perpendicular directions, improving the accuracy of the installation position of the track bed plate, and thus ensuring the overall performance of the track.

[0035] In this embodiment, the length axis of the primary plate is parallel to the length axis of the first baffle plate 10. When the first baffle plate 10 abuts against the installed base plate, the positioning plate 13 can accurately provide an installation position reference for the adjacent track bed plate, making the installation of the track bed plate more orderly and standardized, and improving the quality of track laying.

[0036] In this embodiment, the modulus of the teeth on the rack plate 15 is equal to that of the teeth on the gear segment 111. When the screw rod 11 rotates, the equal modulus enables the gear segment 111 to accurately mesh with the rack plate 15, achieving stable transmission and ensuring that the abutting mechanism accurately approaches or moves away from the base plate, thereby reliably fixing the track bed plate.

[0037] The present patent relates to a tool for fixing the base plate of a curved section of a ballastless track. The traditional tool has problems such as difficult gap control and unstable fixation. The tool mainly consists of a screw rod 11, a first baffle plate 10, a positioning plate 13, and an abutting mechanism. The screw rod 11 is movably connected to the first baffle plate 10 at both ends, and the distance is adjusted by the cooperation of the nut 12 and the outer threaded segment of the screw rod 11. The positioning plate 13 is composed of a primary plate and a secondary plate, and is fixed to the first baffle plate 10 to provide an accurate position reference for the installation of the track bed plate. The abutting mechanism includes a sleeve 14, a rack plate 15, and a gear segment 111, etc. When the screw rod 11 rotates, the rack plate 15 is driven to abut against the base plate through gear and rack transmission, and the spring 17 provides cushioning. The tool can assist in guiding the relative position of the falling track bed plate and the adjacent base plate, improve the fixation stability, and significantly improve the installation efficiency and the quality of the track.

[0038] The above embodiments are only used to illustrate the technical solutions of the present disclosure, and not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A positioning auxiliary tooling for replacing the elastic pad layer of a track slab, comprising a screw (11) and a first baffle (10) movably connected to both ends of the screw (11), characterized in that, A positioning plate (13) is fixedly connected to the first baffle (10), and the positioning plate (13) is composed of a primary plate and a secondary plate; the screw (11) is provided with an external thread section, and the side of the first baffle (10) is provided with a nut (12) that meshes with the external thread section; A clamping mechanism is fixedly connected to the positioning plate (13). When the screw (11) rotates, it can drive the clamping mechanism to support the base plate.

2. The track bed slab positioning auxiliary tool for replacing the elastic pad layer according to claim 1, characterized in that, A guide plate (131) is fixedly connected to the parallel section of the positioning plate (13). The guide plate (131) has an inclination angle ranging from 7° to 13° along the direction from the positioning plate (13) to the guide plate (131).

3. The track bed slab positioning auxiliary tool for replacing the elastic pad layer according to claim 2, characterized in that, The clamping mechanism includes a sleeve (14) fixed to the secondary plate. The sleeve (14) has an opening on the side near the screw (11). A rack plate (15) is slidably provided inside the sleeve (14). A gear segment (111) that meshes with the rack plate (15) is fixed on the screw (11). When the screw (11) rotates, it can drive the rack plate (15) to move closer to or away from the base plate.

4. The track bed slab positioning auxiliary tool for replacing the elastic pad layer according to claim 3, characterized in that, One end of the rack plate (15) is slidably disposed inside the sleeve (14), and the other end of the rack plate (15) is provided with a second baffle (16). A spring (17) is provided between the second baffle (16) and the rack plate (15). One end of the spring (17) is fixed to the end of the second baffle (16), and the other end of the spring (17) is fixed to the second baffle (16).

5. The track bed slab positioning auxiliary tool for replacing the elastic pad layer according to claim 1, characterized in that, The angle between the length axis of the primary plate and the length axis of the secondary plate is 90°.

6. The track bed slab positioning auxiliary tool for replacing the elastic pad layer according to claim 1, characterized in that, The length axis of the primary plate is parallel to the length axis of the first baffle (10).

7. The track bed slab positioning auxiliary tool for replacing the elastic pad layer according to claim 3, characterized in that, The teeth on the rack plate (15) have the same module as the teeth on the gear segment (111).

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