Adjustable width shoulder slipform paver

Abstract

The utility model discloses a shoulder slipform paver of adjustable width belongs to road surface construction equipment technical field. The paver includes the vehicle body, the forming plate and the extrusion mechanism, and its key lies in, still including the pressure plate of rotation connection in the forming plate to and the adjusting mechanism of driving this pressure plate swing. The adjusting mechanism includes the driving block, the connecting rod, the sliding assembly and the follower, and driving block starts, and through connecting rod drive the sliding assembly in the sliding groove sliding of connecting axle, and then through follower drive pressure plate swing around the central axis, thereby change the inside width of forming plate, realize the on -line regulation of paving width. The utility model discloses through the setting adjusting mechanism, solved the existing paver width fixed, the poor commonality problem, has the advantage that can quickly adjust the paving width, one machine multi -use, construction efficiency is high, and the adjustment process is stable and reliable simultaneously, and the shoulder compactness after forming is high.

Description

Technical Field

[0001] This utility model relates to the field of road construction equipment technology, and in particular to an adjustable-width shoulder slipform paver. Background Technology

[0002] As a crucial component of highways, the construction quality of road shoulders directly impacts the overall stability and driving safety of the road. In modern road construction, slipform pavers are widely used due to their ability to complete the vibration, compaction, and shaping of road shoulders in a single operation, offering advantages such as fast construction speed and high-quality shaping.

[0003] Existing slipform pavers typically use a fixed-width forming mold as their core working component. During paving, materials such as concrete are fed into the mold, where they are extruded and shaped. As the machine moves forward, it leaves a continuous, smooth shoulder. This method demonstrates high efficiency on long road sections with standardized construction and constant shoulder width.

[0004] However, in actual engineering projects, the design width of the road shoulders often varies between different grades of highways and different sections of the same highway. Faced with this situation, construction teams using traditional fixed-width pavers usually have to adapt to the new construction requirements by replacing the entire set of forming molds of different widths. This process not only requires interrupting construction for time-consuming and labor-intensive disassembly and installation, but also necessitates preparing multiple sets of molds for different projects, greatly increasing the overall operating cost of the equipment and the auxiliary time for construction, and reducing the overall flexibility and efficiency of construction.

[0005] Therefore, this utility model proposes an adjustable-width shoulder slipform paver to address the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of fixed paving width in existing shoulder slipform pavers, which cannot be easily adjusted to adapt to different working conditions, resulting in poor equipment versatility and high overall operating costs, this utility model aims to provide a shoulder slipform paver with an adjustable width that has been structurally improved and can effectively solve the above problems.

[0007] This utility model provides an adjustable-width shoulder slipform paver, comprising: a vehicle body, a forming plate fixedly connected to the vehicle body by a fixing rod, and an extrusion mechanism disposed on the forming plate; the extrusion mechanism includes a central column that is driven and connected to a power block, and a spiral plate fixed to the outer peripheral wall of the central column; the paver also includes a pressure plate and an adjustment mechanism.

[0008] The pressure plate is rotatably connected to a central shaft located inside the forming plate, and the adjustment mechanism is used to drive the pressure plate to swing.

[0009] Furthermore, the adjustment mechanism includes a housing, a drive block, a transmission shaft, a connecting rod, a sliding assembly, a follower rod, and a fixed seat. The housing has a sliding groove. The drive block is fixedly installed inside the housing and is connected to the transmission shaft. One end of the connecting rod is connected to the transmission shaft, and the other end is rotatably connected to the connecting shaft of the sliding assembly. The connecting shaft is slidably fitted in the sliding groove. One end of the follower rod is rotatably connected to the connecting shaft, and the other end is connected to the pressure plate through the fixed seat, forming a complete transmission combination that can convert the rotational motion of the drive block into the arc-shaped oscillating motion of the pressure plate.

[0010] Preferably, the extrusion mechanism further includes a support plate, and the power block is mounted on the support plate.

[0011] Preferably, the bottom of the central column extends to form a fixed shaft, and the support plate is provided with a groove for the fixed shaft to rotate and engage.

[0012] Preferably, the molding plate has an inlet that communicates with the feeding end of the extrusion mechanism.

[0013] Preferably, the fixing seat is fixed to the pressure plate.

[0014] Preferably, the drive block is fixed to the housing by screws.

[0015] Preferably, a sealing strip is provided between the side of the pressure plate and the inner wall of the forming plate.

[0016] Preferably, the bottom of the vehicle body is equipped with multiple pulleys.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting an adjustment mechanism composed of a drive block, a connecting rod, a sliding component and a follower rod, can drive the pressure plate inside the forming plate to swing in an arc shape, which solves the problems of fixed paving width, poor versatility and high construction cost of existing road shoulder pavers, and achieves the technical effect of being able to adjust the paving width conveniently and quickly, making one machine multi-purpose, and significantly improving construction efficiency and equipment adaptability.

[0019] 2. This utility model solves the problems of jamming and unstable operation that occur in the adjustment mechanism during transmission by setting a sliding fit structure between the connecting shaft and the slide groove in the adjustment mechanism. It achieves the technical effect of ensuring smooth and stable width adjustment process, improving the accuracy of adjustment and the long-term reliability of equipment operation.

[0020] 3. This utility model solves the problem of insufficient density and low strength caused by the presence of gas in the material during the molding process by setting an extrusion mechanism with a spiral plate to compress the material. It effectively removes the gas from the material, making the road shoulder more compact and solid after molding, thus improving the technical effect of engineering quality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of an adjustable-width shoulder slipform paver proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the pulley structure of an adjustable-width road shoulder slipform paver proposed in this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the housing of an adjustable-width road shoulder slipform paver proposed in this utility model;

[0025] Legend:

[0026] 1. Molded board;

[0027] 2. Adjustment mechanism; 21. Housing; 22. Drive block; 23. Connecting rod;

[0028] 24. Sliding assembly; 241. Coupling; 242. Slide groove; 243. Drive shaft; 244. Screw; 245. Fixed base; 25. Follower rod; 26. Pressure plate; 27. Central shaft; 28. Sealing strip;

[0029] 3. Extrusion mechanism; 31. Power block; 32. Support plate; 33. Central column; 34. Fixed shaft; 35. Groove; 36. Spiral plate;

[0030] 4. Feed inlet; 5. Fixing rod; 6. Pulley; 7. Car body. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in 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 a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] Example:

[0033] Please refer to Figures 1 to 4 This utility model provides an adjustable-width road shoulder slipform paver, which aims to solve the problem that the paving width of existing road shoulder slipform pavers is usually fixed and cannot be easily adjusted to adapt to different working conditions, resulting in poor equipment versatility.

[0034] like Figure 1 As shown, the adjustable-width shoulder slipform paver includes a vehicle body 7 and a forming plate 1 fixedly connected to the vehicle body 7 by a fixing rod 5. Multiple pulleys 6 are installed at the bottom of the vehicle body 7 to serve as a moving and bearing platform for the entire device. The forming plate 1 is used for the initial enclosure and shaping of materials.

[0035] The molding plate 1 is provided with an extrusion mechanism 3 and a feed inlet 4 for feeding. The extrusion mechanism 3 is used to extrude and shape the material entering from the feed inlet 4. The molding plate 1 is rotatably connected to a pressure plate 26 for limiting the molding range. A sealing strip 28 is also provided between the pressure plate 26 and the inner wall of the molding plate 1 to prevent material leakage.

[0036] The core of this solution lies in the provision of an adjustment mechanism 2 capable of driving the pressure plate 26 to swing, thereby changing the forming width inside the forming plate 1. This adjustment mechanism 2 specifically includes a housing 21, a drive block 22, a connecting rod 23, a sliding assembly 24, a follower rod 25, and a fixed base 245. The drive block 22 is fixedly installed inside the housing 21 by screws 244. A sliding groove 242 is provided on the housing 21. The power output end of the drive block 22 is connected to a drive shaft 243. One end of the drive shaft 243 is connected to one end of the connecting rod 23, and the other end of the connecting rod 23 is rotatably connected to the connecting shaft 241 of the sliding assembly 24. Shaft 241 slides within groove 242. One end of follower rod 25 is rotatably connected to shaft 241, while the other end of follower rod 25 is connected to fixed seat 245. Fixed seat 245 is fixed to pressure plate 26. Rotating end of pressure plate 26 is connected to central shaft 27 located within forming plate 1. Thus, when drive block 22 operates, its power is transmitted to shaft 241 via transmission shaft 243 and connecting rod 23, driving shaft 241 to slide along groove 242. The sliding of shaft 241, through follower rod 25 and fixed seat 245, causes pressure plate 26 to swing in an arc around central shaft 27, thereby achieving adjustment of paving width.

[0037] Please refer to the following carefully. Figure 2 , Figure 3 and Figure 4 The internal structure of the core adjustment mechanism 2 will be described in detail below:

[0038] The housing 21 of the adjusting mechanism 2 is fixedly installed on the outside of the molding plate 1. The drive block 22 is fixed inside the housing 21 by screws 244. A slide groove 242 is machined on the inner wall of the housing 21. The slide groove 242 provides precise guidance and limit for the reciprocating sliding motion of the connecting shaft 241.

[0039] Meanwhile, the connecting shaft 241 of the sliding assembly 24 is slidably fitted in the slide groove 242. The power output by the drive block 22 drives the connecting shaft 241 to reciprocate along the length of the slide groove 242 through the transmission shaft 243 and the connecting rod 23. One end of the connecting shaft 241 is rotatably connected to the follower rod 25, and the other end of the follower rod 25 is connected to the pressure plate 26 through the fixed seat 245, wherein the fixed seat 245 is fixed to the outer surface of the pressure plate 26.

[0040] In the assembled state, the rotational motion of the drive block 22 is converted into the linear sliding motion of the connecting shaft 241, and then, through the follower rod 25, it is finally converted into the arc-shaped oscillation motion of the pressure plate 26 around the central axis 27. This composite motion conversion mechanism consisting of rotation and linear oscillation ensures the smoothness and reliability of the adjustment action and can provide sufficient driving torque to overcome the resistance of the material to the pressure plate 26.

[0041] As a preferred embodiment, in order to achieve efficient extrusion and molding of materials, please refer to... Figure 4 The extrusion mechanism 3 also includes a support plate 32, on which the power block 31 is mounted. The support plate 32 is used to support the power block 31 and to securely mount it on the molding plate 1.

[0042] In a more preferred embodiment, in order to ensure the stable operation of the extrusion mechanism 3 for a long time, a fixed shaft 34 is formed at the end of the central column 33 away from the power block 31. A groove 35 for accommodating and supporting the fixed shaft 34 is correspondingly provided on the support plate 32. The fixed shaft 34 rotates and engages in the groove 35, providing an additional support point for the rotation of the central column 33, effectively preventing the central column 33 from deflecting or vibrating when subjected to large extrusion pressure.

[0043] As a preferred embodiment, in order to facilitate the addition of materials, the molding plate 1 is provided with a feed port 4 that is connected to the feed end of the extrusion mechanism 3, and the materials enter the working area of ​​the spiral plate 36 through the feed port 4.

[0044] In a preferred embodiment, to ensure the reliability of the connection, the follower rod 25 is connected to the pressure plate 26 by a fixed seat 245. The fixed seat 245 is fixed to the surface of the pressure plate 26, and the end of the follower rod 25 is rotatably connected to the fixed seat 245.

[0045] In a preferred embodiment, in order to ensure the sealing and cleanliness of the adjustment mechanism 2, the drive block 22 is firmly fixed to the housing 21 by multiple screws 244. The housing 21 provides good protection for the internal precision components such as the drive block 22 and the transmission shaft 243.

[0046] As a preferred embodiment, in order to enhance the sealing effect of the adjustment and prevent material leakage at the boundary of the width adjustment, a sealing strip 28 is provided on the side of the pressure plate 26 facing the inner wall of the molding plate 1. The sealing strip 28 always maintains elastic contact with the inner wall of the molding plate 1 when the pressure plate 26 swings.

[0047] As a preferred embodiment, in order to ensure the smooth movement of the whole machine, multiple pulleys 6 are installed at the bottom of the vehicle body 7.

[0048] The working principle is as follows:

[0049] When paving is required, the material is poured in from the feed port 4. The power block 31 of the extrusion mechanism 3 is activated, driving the central column 33 to rotate. The spiral plate 36 fixed on the central column 33 rotates accordingly. The spiral plate 36 will compress the material, on the one hand, expelling the gas in the material to increase the density, and on the other hand, forcefully pushing the material into the forming area defined by the forming plate 1 and the pressure plate 26. As the vehicle body 7 moves along the edge of the road with the help of the pulley 6, the compressed material is continuously paved through the rear end of the forming plate 1 to form the road shoulder.

[0050] When the paving width needs to be adjusted, the drive block 22 in the adjustment mechanism 2 is activated. The rotational power output by the drive block 22 is transmitted to the connecting rod 23 through the transmission shaft 243. The connecting rod 23 then pushes the connecting shaft 241. Since the connecting shaft 241 is constrained in the slide groove 242 of the housing 21, its movement trajectory is strictly limited to linear sliding. The linear movement of the connecting shaft 241 is converted into the arc swinging motion of the pressure plate 26 around the central axis 27 of its rotation fulcrum through the follower rod 25 and the fixed seat 245. The swinging of the pressure plate 26 changes the distance between it and the inner wall of the forming plate 1, thereby accurately adjusting the width of the material forming cavity and realizing the adjustment of the paving width.

Claims

1. An adjustable-width shoulder slipform paver, comprising: Vehicle body (7); A molded plate (1) is fixedly connected to the vehicle body (7) by a fixing rod (5); And an extrusion mechanism (3) is provided on the molding plate (1). The extrusion mechanism (3) includes a central column (33) that is connected to the power block (31) for transmission, and a spiral plate (36) fixed to the outer peripheral wall of the central column (33). Its features are, The paver also includes a pressure plate (26) and an adjustment mechanism (2); The pressure plate (26) is rotatably connected to the central shaft (27) provided in the forming plate (1); The adjustment mechanism (2) includes: The housing (21) has a sliding groove (242) on it; A drive block (22) is fixedly installed inside the housing (21) and is connected to the drive shaft (243) for transmission. A connecting rod (23) is connected at one end to the drive shaft (243); The sliding assembly (24) includes a connecting shaft (241) rotatably connected to the other end of the connecting rod (23), the connecting shaft (241) being slidably fitted within the sliding groove (242); And a follower rod (25), one end of which is rotatably connected to the connecting shaft (241), and the other end is connected to the pressure plate (26) through a fixed seat (245) to drive the pressure plate (26) to swing around the central axis (27).

2. The adjustable-width shoulder slipform paver according to claim 1, characterized in that, The extrusion mechanism (3) also includes a support plate (32), and the power block (31) is mounted on the support plate (32).

3. The adjustable-width shoulder slipform paver according to claim 2, characterized in that, The bottom of the central column (33) extends to form a fixed shaft (34), and the support plate (32) is provided with a groove (35) for the fixed shaft (34) to rotate.

4. The adjustable-width shoulder slipform paver according to claim 1, characterized in that, The molding plate (1) has an inlet (4) that communicates with the feeding end of the extrusion mechanism (3).

5. The adjustable-width shoulder slipform paver according to claim 1, characterized in that, The fixing seat (245) is fixed on the pressure plate (26).

6. The adjustable-width shoulder slipform paver according to claim 1, characterized in that, The drive block (22) is fixed to the housing (21) by screws (244).

7. The adjustable-width shoulder slipform paver according to claim 1, characterized in that, A sealing strip (28) is provided between the side of the pressure plate (26) and the inner wall of the molding plate (1).

8. The adjustable-width shoulder slipform paver according to claim 1, characterized in that, The bottom of the vehicle body (7) is equipped with multiple pulleys (6).

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