Telescopic screed plate structure, control method and paver

Abstract

The invention discloses a telescopic screed plate structure, a control method and a paver, and belongs to the field of pavement construction machinery. The telescopic screed plate structure comprises a foundation section and a movable telescopic section; a follow-up baffle capable of sliding is arranged on the basic section; the telescopic section and the foundation section are arranged in a staggered mode, and the follow-up baffle is arranged between the telescopic section and the foundation section. The follow-up baffle is provided with a first position where the telescopic section stretches out to drive the follow-up baffle to move so as to increase the coincidence amount of the basic section and the telescopic section. The telescopic section resets to drive the follow-up baffle to move to a reset second position; the telescopic section telescopically moves to realize the switching between the first position and the second position of the follow-up baffle plate; when the telescopic section stretches out, the follow-up baffle is driven to move to fill the gap between the foundation section and the telescopic section, it is guaranteed that after the telescopic section is put into use, laid building materials cannot leak out of the gap between the telescopic section and the foundation section, material marks are avoided, and the pavement laying quality is improved.

Description

Technical Field

[0001] This application relates to the field of road construction machinery technology, specifically to a telescopic screed structure, control method, and paver. Background Technology

[0002] Existing telescopic screeds are limited by transport width while also maximizing the maximum base paving width. This results in the width of the telescopic screed without its extension section typically being 2.5m to 5m or 3m to 6m. Consequently, when the telescopic screed is fully extended, the overlap between the base section and the extension section is very small. Paving material often leaks out from the gap between the base and extension sections, leaving material marks on the paved surface. In severe cases, this can even affect the quality of the pavement formation.

[0003] A common technical approach in the industry is to use baffles to reduce the gap between the base section and the expansion joint in the front-to-back direction. However, due to the relative movement between the base section and the expansion joint, coupled with manufacturing errors, even with baffles, the gap between them remains relatively large, and the leakage problem is only somewhat improved, not completely eliminated. Summary of the Invention

[0004] The purpose of this application is to provide a telescopic screed structure, control method, and paver to overcome the deficiencies caused by the prior art.

[0005] To achieve the above objectives, this application employs the following technical solution: Firstly, this application discloses a telescopic ironing board structure, which includes... The base section is equipped with a sliding follower baffle. A movable telescopic section is provided, which is staggered with the base section, and the follow-up baffle is provided between the telescopic section and the base section; The follower baffle has a first position where the extension section extends to drive the follower baffle to move and increase the overlap between the base section and the extension section; and a second position where the extension section resets to drive the follower baffle to reset; the extension and retraction movement of the extension section realizes the switching between the first position and the second position of the follower baffle; the distance between the follower baffle and the base section in the first position is less than the size of the building material particles to be laid.

[0006] In a further embodiment of this application, the follower baffle is mounted on the base section via a sliding assembly; The sliding assembly includes multiple fasteners and elastic elements. Multiple sliding grooves are provided in parallel on the base section. The multiple fasteners are arranged one-to-one with the multiple sliding grooves and are fixedly connected to the follower baffle through the corresponding sliding grooves. The elastic elements are located between the fasteners and the base section.

[0007] In a further embodiment of this application, the telescopic section is provided with a pushing part, the pushing part including a first pushing component and a second pushing component, the first pushing component and the second pushing component being spaced apart on both sides of the telescopic section along the moving direction of the telescopic section.

[0008] In a further embodiment, the follower baffle is provided with a contact portion that cooperates with the pushing part.

[0009] In a further embodiment, the first and second pushing components have the same structure; The first pushing assembly includes a pushing element and a locking element, wherein the pushing element is adjustablely mounted on the telescopic section and positioned by the locking element.

[0010] In a further embodiment of this application, the two sets of the basic segments and the telescopic segments are symmetrically arranged.

[0011] A further embodiment of this application also includes a frame, wherein the base section is fixedly connected to the frame, and a driving component is provided on the frame, the driving component driving the telescopic section to extend and retract.

[0012] In a further embodiment of this application, when the telescopic section extends, the base section and the telescopic section are arranged in a Z-shape.

[0013] This application further provides a control method based on a telescopic ironing board structure, which includes... The telescopic section extends, and the telescopic section drives the follower baffle to move to fit or approach the base section; The telescopic section retracts, and the telescopic section drives the follower baffle to move and reset, enabling the independent use of the base section. The follower baffle is put into use or reset depending on whether the telescopic section is activated.

[0014] This application also provides a paver that includes the above-described telescopic screed structure and / or uses the above-described control method.

[0015] The beneficial effects of this application are as follows: In this application, a sliding follower baffle is installed on the base section. When the telescopic section extends, it moves to fill the gap between the base section and the telescopic section. After the telescopic section resets, it also moves to reset. During the use of the device, the follower baffle is moved adaptively according to the actual use of the telescopic section to ensure that after the telescopic section is put into use, the paving material will not leak out from the gap between the telescopic section and the base section, thus avoiding leaving material marks and improving the quality of road paving. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the telescopic ironing board structure in the embodiments of this application; Figure 2 This is a schematic diagram of the follower baffle in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the base segment with a follower baffle installed in an embodiment of this application; Figure 4 This is a schematic diagram of the front side of the follower baffle installation in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the back of the follower baffle in the embodiment of this application; Figure 6 This is a schematic diagram of the installation of the triggering device in an embodiment of this application.

[0017] in: 1. Base section; 11. Slide groove; 2. Telescopic section; 21. Mounting panel; 3. Follow-up baffle; 31. Sliding assembly; 311. Fastener; 312. Elastic element; 4. Pushing part; 401. First pushing assembly; 402. Second pushing assembly; 41. Pushing element; 42. Locking part; 5. Baffle; 6. Protective cover. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0019] like Figure 1 As shown, this embodiment discloses an embodiment of a telescopic ironing board structure, which includes a base section 1 and a movable telescopic section 2. The base section 1 is provided with a sliding follower baffle 3. The telescopic section 2 is staggered with the base section 1, and the follower baffle 3 is disposed between the telescopic section 2 and the base section 1. The follower baffle 3 has a first position where the telescopic section 2 extends to drive the follower baffle 3 to move and fit or approach the base section 1; and a second position where the telescopic section 2 resets to drive the follower baffle 3 to move back to its original position; the telescopic section 2 moves to extend and retract to realize the switching between the first position and the second position of the follower baffle 3; the distance between the follower baffle 3 and the base section 1 in the first position is smaller than the size of the building material particles to be laid.

[0020] During use, the extension of the telescopic section 2 drives the movement of the follower baffle 3 to switch positions, thereby filling the gap between the telescopic section 2 and the base section 1, preventing the laying materials from leaking out of the gap during installation, and ensuring construction quality.

[0021] In some embodiments, a telescopic ironing board structure is specifically designed as follows; As attached Figure 2 and Figure 3 As shown, in this embodiment, the follower baffle 3 is installed on the base section 1 via the sliding assembly 31; The sliding assembly 31 includes two sets of fasteners 311 and an elastic element 312. Two parallel sliding grooves 11 are provided on the base section 1, with the direction of the grooves 11 aligned with the direction of extension and retraction of the telescopic section 2. The two fasteners 311 and the two sliding grooves 11 are correspondingly arranged and pass through the corresponding grooves 11 to be fixedly connected to the follower baffle 3. The elastic element 312 is located between the fasteners 311 and the base section 1. In actual manufacturing, to simplify the structure, the fasteners 311 are preferably flange bolts, and the elastic elements 312 are preferably disc springs. The fasteners 311 engage with threaded holes on the follower baffle 3; the elastic element 312 provides preload between the follower baffle 3 and the base section 1 to prevent the follower baffle 3 from shaking.

[0022] During installation, the follower baffle 3 is pressed onto the slide groove 11 of the base section 1 by the boss of the fastener 311; the fastener 311 can adjust the preload applied to the follower baffle 3 by the elastic element 312 through the thread; the slide groove 11 is preferably an elongated hole.

[0023] As attached Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the telescopic section 2 is provided with a pushing part 4, which includes a first pushing component 401 and a second pushing component 402. The first pushing component 401 and the second pushing component 402 are spaced apart on both sides of the telescopic section 2 along the moving direction of the telescopic section 2.

[0024] The follower baffle 3 is provided with a contact part that cooperates with the push part 4. The contact part is set as a V-shaped groove. The V-shaped groove cooperates with the push part 4 to ensure the stable movement of the follower baffle 3. The first push component 401 and the second push component 402 in this embodiment have the same structure. In addition, the base section 1 is provided with a protective cover 6 to prevent the paving material from seeping into the groove 11 of the base section 1.

[0025] As attached Figure 6 As shown, taking the first pushing assembly 401 as an example, it includes a pushing element 41 and a locking element 42. The pushing element 41 is adjustablely mounted on the telescopic section 2 and positioned by the locking element 42. During installation, the pushing element 41 is preferably a bolt. The pushing element 41 is fixed to the mounting panel 21 of the telescopic section 2 by threaded engagement. The pushing element 41 can be screwed out of the mounting panel 21 by a certain distance to contact and push the follower baffle 3 to move, and maintain a reasonable gap with the base section 1 according to the actual situation. After the pushing element 41 is adjusted to a suitable position, it is locked by the locking element 42 (nut).

[0026] During use, when the telescopic section 2 extends, the second pushing component 402 can push the follower baffle 3 to extend along with the telescopic section 2, so that there is always enough overlapping amount between the base section 1 and the telescopic section 2, preventing the paving material from leaking out of the gap between the base section 1 and the telescopic section 2.

[0027] When the telescopic section 2 retracts, the first pushing component 401 can push the follower baffle 3 to completely retract into the width flap range of the base section 1 along with the telescopic section 2, without affecting the transport width of the screed structure. It is worth noting here that the elastic element 312 provides a pre-tightening force to the follower baffle 3, but the pre-tightening force provided by the elastic element 312 is much smaller than the power provided to the follower baffle 3 when the pushing device moves.

[0028] In this embodiment, both the telescopic section 2 and the base section 1 are installed on the frame. There is a driving member on the frame, and the driving frame can use a hydraulic rod. The structure will not be elaborated here. The base section 1 is fixedly connected to the frame, and the driving member drives the telescopic section 2 to expand and contract; generally, two sets of the base section 1 and the telescopic section 2 are provided, and the two sets of the base section 1 and the telescopic section 2 are symmetrically arranged, and the two base sections 1 are arranged in the middle. When the telescopic section 2 extends, each set of the base section 1 and the telescopic section 2 is arranged in a Z shape, and the overall telescopic screed structure presents a "pin" shape.

[0029] This application provides an embodiment, which designs a control method. This method is implemented based on the above embodiment and includes The telescopic section 2 makes an extending movement, and the telescopic section 2 drives the follower baffle 3 to move to increase the overlapping amount between the base section 1 and the telescopic section 2 and reduce the gap between them; it should be noted here that during actual manufacturing, the follower baffle 3 will not completely seal the gap, but is sufficient to block paving materials such as asphalt and prevent the materials from leaking out; The telescopic section 2 makes a retracting movement, and the telescopic section 2 drives the follower baffle 3 to move back to its original position, realizing the independent use of the base section 1. The follower baffle 3 can be put into use or reset according to whether the telescopic section 2 is enabled. When the telescopic section 2 expands or retracts to a position close to the limit position, it triggers the movement of the follower baffle 3, completing the switching between the state of the follower baffle 3 being put into use and the state of waiting to be used.

[0030] This embodiment also provides an embodiment, which relates to a paver, which includes the telescopic screed structure in the above embodiment and / or uses the control method in the above embodiment.

[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A telescopic ironing board structure, characterized in that, include The base segment (1) is provided with a sliding follower baffle (3). A movable telescopic section (2) is arranged in a staggered manner with respect to the base section (1), and a follow-up baffle (3) is provided between the telescopic section (2) and the base section (1); The follower baffle (3) has a first position where the extension section (2) extends and drives the follower baffle (3) to move, increasing the overlap between the base section (1) and the extension section (2); and a second position where the extension section (2) resets and drives the follower baffle (3) to move back to its original position; the extension section (2) moves to extend and retract, thereby switching the first position and the second position of the follower baffle (3).

2. The telescopic ironing board structure according to claim 1, characterized in that, The follower baffle (3) is installed on the base section (1) via a sliding component (31); The sliding assembly (31) includes multiple fasteners (311) and elastic elements (312). Multiple sliding grooves (11) are provided in parallel on the base section (1). The multiple fasteners (311) are arranged one-to-one with the multiple sliding grooves (11) and are fixedly connected to the follower baffle (3) through the corresponding sliding grooves (11). The elastic element (312) is located between the fasteners (311) and the base section (1).

3. The telescopic ironing board structure according to claim 1, characterized in that, The telescopic section (2) is provided with a pushing part (4), which includes a first pushing component (401) and a second pushing component (402). The first pushing component (401) and the second pushing component (402) are spaced apart on both sides of the telescopic section (2) along the moving direction of the telescopic section (2).

4. The telescopic ironing board structure according to claim 3, characterized in that, The follower baffle (3) is provided with a contact part that cooperates with the push part (4).

5. The telescopic ironing board structure according to claim 3, characterized in that, The first pushing component (401) and the second pushing component (402) have the same structure; The first push assembly (401) includes a push element (41) and a locking element (42), wherein the push element (41) is adjustablely mounted on the telescopic section (2) and positioned by the locking element (42).

6. The telescopic ironing board structure according to claim 1, characterized in that, The two sets of the basic segment (1) and the telescopic segment (2) are symmetrically arranged.

7. The telescopic ironing board structure according to claim 1, characterized in that, It also includes a frame, the base section (1) is fixedly connected to the frame, the frame is provided with a drive component, and the drive component drives the telescopic section (2) to extend and retract.

8. The telescopic ironing board structure according to claim 1, characterized in that, When the telescopic section (2) extends, the base section (1) and the telescopic section (2) are arranged in a Z-shape.

9. A control method for implementing the telescopic ironing board structure according to any one of claims 1 to 8, characterized in that, include The telescopic section (2) extends, and the telescopic section (2) drives the follower baffle (3) to move to fit or approach the base section (1). The telescopic section (2) retracts and drives the follower baffle (3) to move and reset, enabling the independent use of the base section (1). The follower baffle (3) is put into use or reset depending on whether the telescopic section (2) is enabled.

10. A paver, characterized in that, Includes the telescopic ironing board structure as described in any one of claims 1 to 8 and / or uses the control method as described in claim 9.

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