A material delivery mechanism for a concrete paver

Abstract

The utility model provides a material conveying mechanism for concrete paver, including drive arrangement, conveying mechanism, baffle structure, two stair type buffer support structure and a plurality of flexible flow guide structure, the output of drive arrangement is connected with conveying mechanism, two stair type buffer support structure is symmetrically set left and right, the utility model discloses a material conveying mechanism for concrete paver has solved the problem that because the conveying belt end unloading impact and spiral blade high -speed agitating of material flow conveying mechanism in relevant art, has caused the problem that coarse aggregate and slurry separate.

Description

Technical Field

[0001] This utility model belongs to the technical field of road construction equipment, and in particular relates to a material conveying mechanism for a concrete paver. Background Technology

[0002] The material conveying mechanism of a concrete paver typically consists of a longitudinally arranged conveyor belt system and a set of transverse auger distributors. The conveyor belt continuously and stably transports the concrete mixture from the hopper or receiving area along the machine's travel direction to the predetermined paving position. The high-speed rotating auger distributors then precisely and evenly spread the material unloaded from the conveyor belt laterally to the designed paving width. Finally, a scraper plate performs precise leveling and initial compaction. The entire system operates collaboratively on the main frame, ensuring efficient and continuous material distribution along both length and width. However, in related technologies, the impact of unloading material at the end of the conveyor belt and the high-speed agitation of the auger blades can cause separation of coarse aggregate and slurry, affecting the uniformity of the paving. Summary of the Invention

[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A material conveying mechanism for a concrete paver includes a drive unit, a conveying mechanism, a baffle structure, two stepped buffer support structures, and multiple flexible guide structures.

[0006] The output end of the drive device is connected to the transmission mechanism;

[0007] The two stepped buffer support structures are symmetrically arranged on the left and right, and a plurality of flexible flow guide structures are arranged on the two stepped buffer support structures. The side of each flexible flow guide structure corresponds to a stepped buffer support structure and is connected. One end of the conveying mechanism is directly opposite the flexible flow guide structure located at the top.

[0008] The baffle structure is horizontally fixed to the bottom of the concrete paver frame, and two stepped buffer support structures are symmetrically fixed to the left and right sides of the concrete paver frame, respectively, and located above the baffle structure.

[0009] Furthermore, the stepped buffer support structure includes a stepped bracket and multiple buffer mechanisms, with the multiple buffer mechanisms arranged on the stepped bracket, and each buffer mechanism correspondingly connected to the top of one of the flexible flow guiding structures.

[0010] Furthermore, the buffer mechanism includes a damping rod, a guide groove, a support plate, and a return spring. The guide groove and the support plate are both located on the vertical part of the inner end face of the stepped bracket. The guide groove cooperates with the end of the crossbar of the flexible flow guide structure. The damping rod is located on the support plate, and the top of the damping rod is connected to the crossbar of the flexible flow guide structure. The return spring is sleeved on the outside of the damping rod.

[0011] Furthermore, the flexible flow guiding structure includes a flexible flow guiding skirt, a crossbar, and two hinged rods. The crossbar is located at the top of the flexible flow guiding skirt and is connected to the buffer mechanism. A hinged rod is provided on each of the left and right sides of the bottom of the flexible flow guiding skirt, and the hinged rod is rotatably connected to the horizontal part of the stepped support.

[0012] Furthermore, the baffle structure includes a C-shaped baffle and an L-shaped cover plate. The left and right sides of the C-shaped baffle are installed at the bottom of the concrete paver frame, and the L-shaped cover plate is set on the upper end face of the C-shaped baffle. The L-shaped cover plate is used to seal the gap between the upper part of the C-shaped baffle and the flexible guide skirt located at the bottom.

[0013] Furthermore, the conveying mechanism includes two roller supports, two roller structures, two conveying chains, four support frames, and multiple material support plates. The two roller structures are symmetrically arranged front and rear, and each roller structure is connected to one roller support. The two conveying chains are symmetrically arranged on the two roller supports. The multiple material support plates are evenly arranged on the two conveying chains. The four support frames are horizontally arranged between the two roller supports, and the end of each support frame is connected to one roller support.

[0014] Furthermore, the driving device includes a drive motor and a drive chain, and the output end of the drive motor is connected to the end of one of the roller structures via the drive chain.

[0015] Compared with the prior art, the material conveying mechanism for a concrete paver described in this utility model has the following advantages:

[0016] 1. The stepped buffer support structure consists of a stepped support frame and an array of buffer mechanisms. The stepped support frame is fixed to the left and right sides of the paver frame, and a buffer mechanism is vertically installed on the surface of each step. The buffer mechanism includes a guide groove and support plate embedded in the inner side of the support frame, a damping rod, and a return spring sleeved on the outside of the damping rod. The top of the damping rod is connected to the end of the crossbar of the flexible guide structure. The two ends of the crossbar are embedded in the guide groove to form a sliding constraint. The return spring is pre-compressed between the support plate and the crossbar. When the material impacts, the crossbar presses down on the damping rod along the groove and compresses the spring. Through hydraulic damping energy dissipation and elastic return, the stepped kinetic energy is gradually dissipated. At the same time, the stepped drop layout of the support frame guides the concrete to fall in an orderly and graded manner.

[0017] 2. The flexible flow guiding structure includes a top crossbar, a bottom hinged rod, and a flexible flow guiding skirt. The two ends of the crossbar are fixed to the top of the damping rod of the buffer mechanism. The skirt is integrally formed from wear-resistant elastic material and hangs below the crossbar. Its bottom two sides are rotatably connected to the horizontal steps of the stepped support through the hinged rod. When the concrete falls through the stepped buffer, the skirt adaptively deflects around the bottom hinge point under the action of the material's gravity, so that the curved surface of the skirt closely adheres to the surface of the material flow to form a continuous sliding channel. At the same time, the top damping system suppresses the sway amplitude. Through the guiding effect of the flexible curved surface, the vertically impacting concrete is transformed into an approximately horizontal laminar flow, minimizing aggregate bounce and slurry splash. Attached Figure Description

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0019] Figure 1 This is a schematic diagram of a material conveying mechanism for a concrete paver according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the flexible flow guiding structure described in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the buffer mechanism structure described in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the baffle structure described in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Roller structure; 210. Roller bracket; 220. Support frame; 300. Material support plate; 410. Stepped support; 420. Flexible flow guide structure; 510. C-shaped baffle; 520. L-shaped cover plate; 610. Crossbar; 611. Guide chute; 620. Return spring; 630. Hinge rod; 640. Support plate. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] In the description of this utility model, 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 only for the convenience of describing this utility model 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 of this utility model. 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 utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] A material conveying mechanism for a concrete paver, such as Figure 1As shown, it includes a drive device, a conveying mechanism, a baffle structure, two stepped buffer support structures, and multiple flexible flow guide structures 420; the output end of the drive device is connected to the conveying mechanism; the two stepped buffer support structures are symmetrically arranged on the left and right, and multiple flexible flow guide structures 420 are arranged on the two stepped buffer support structures, with the side of each flexible flow guide structure 420 corresponding to a stepped buffer support structure for connection, and one end of the conveying mechanism is directly opposite the flexible flow guide structure 420 located at the top;

[0030] The baffle structure is horizontally fixed to the bottom of the concrete paver frame, and two stepped buffer support structures are symmetrically fixed to the left and right sides of the concrete paver frame, respectively, and located above the baffle structure.

[0031] The stepped buffer support structure includes a stepped bracket 410 and multiple buffer mechanisms. These buffer mechanisms are arranged on the stepped bracket 410, with each mechanism correspondingly connected to the top of a flexible flow guide structure 420. Each buffer mechanism includes a damping rod, a guide groove 611, a support plate 640, and a return spring 620. The guide groove 611 and support plate 640 are both located on the vertical portion of the inner end face of the stepped bracket 410. The guide groove 611 engages with the end of the crossbar 610 of the flexible flow guide structure 420. The damping rod is mounted on the support plate 640, with its top connected to the crossbar 610 of the flexible flow guide structure 420. The return spring 620 is sleeved on the outside of the damping rod. The stepped buffer support structure consists of a stepped bracket 410 and an array of buffer mechanisms. The stepped bracket 410 is fixed to the left and right sides of the paver frame, and a buffer mechanism is vertically installed on the surface of each step. The buffer mechanism includes a guide groove 611 embedded in the inner side of the bracket, a support plate 640, a damping rod, and a return spring 620 sleeved on the outside of the damping rod. The top of the damping rod is connected to the end of the crossbar 610 of the flexible flow guiding structure 420. The two ends of the crossbar 610 are embedded in the guide groove 611 to form a sliding constraint. The return spring 620 is pre-compressed between the support plate 640 and the crossbar 610. When the material impacts, the crossbar 610 presses down on the damping rod along the groove and compresses the spring. Through hydraulic damping energy dissipation and elastic return, the stepped kinetic energy is gradually dissipated. At the same time, the stepped drop layout of the bracket guides the concrete to fall in an orderly and graded manner.

[0032] The flexible flow guiding structure 420 includes a flexible flow guiding skirt, a crossbar 610 and two hinge rods 630. The crossbar 610 is located at the top of the flexible flow guiding skirt and is connected to the buffer mechanism. A hinge rod 630 is provided on the left and right sides of the bottom of the flexible flow guiding skirt. The hinge rod 630 is rotatably connected to the horizontal part of the stepped support 410.

[0033] The baffle structure includes a C-shaped baffle 510 and an L-shaped cover plate 520. The left and right sides of the C-shaped baffle 510 are installed at the bottom of the concrete paver frame. The L-shaped cover plate 520 is set on the upper end face of the C-shaped baffle 510 and is used to seal the gap between the upper part of the C-shaped baffle 510 and the flexible guide skirt located at the bottom.

[0034] The conveying mechanism includes two roller supports 210, two roller structures 100, two conveyor chains, four support frames 220, and multiple material support plates 300. The two roller structures 100 are symmetrically arranged front and rear, and each roller structure 100 is connected to a roller support 210. The two conveyor chains are symmetrically arranged on the two roller supports 210. The multiple material support plates 300 are evenly arranged on the two conveyor chains. The four support frames 220 are horizontally arranged between the two roller supports 210, and the end of each support frame 220 is connected to a roller support 210. The flexible flow guiding structure 420 includes a top crossbar 610, a bottom hinged rod 630, and a flexible flow guiding skirt. The two ends of the crossbar 610 are fixed to the top of the damping rod of the buffer mechanism. The skirt is integrally formed from wear-resistant elastic material and hangs below the crossbar 610. Its bottom two sides are rotatably connected to the horizontal steps of the stepped support 410 through the hinged rod 630. When the concrete falls through the stepped buffer, the skirt adaptively deflects around the bottom hinge point under the action of the material's gravity, so that the curved surface of the skirt closely adheres to the surface of the material flow to form a continuous sliding channel. At the same time, the top damping system suppresses the sway amplitude. Through the guiding effect of the flexible curved surface, the vertically impacting concrete is transformed into an approximately horizontal laminar flow, minimizing aggregate bounce and slurry splash.

[0035] The drive unit includes a drive motor and a drive chain. The output end of the drive motor is connected to the end of a roller structure 100 through the drive chain.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A material conveying mechanism for a concrete paver, characterized in that: It includes a drive unit, a transmission mechanism, a baffle structure, two stepped buffer support structures and multiple flexible flow guiding structures (420); The output end of the drive device is connected to the transmission mechanism; The two stepped buffer support structures are symmetrically arranged on the left and right, and a plurality of flexible flow guide structures (420) are arranged on the two stepped buffer support structures. The side of each flexible flow guide structure (420) is connected to a stepped buffer support structure. One end of the conveying mechanism is directly opposite the flexible flow guide structure (420) located at the top. The baffle structure is horizontally fixed to the bottom of the concrete paver frame, and two stepped buffer support structures are symmetrically fixed to the left and right sides of the concrete paver frame, respectively, and located above the baffle structure.

2. The material conveying mechanism for a concrete paver according to claim 1, characterized in that: The stepped buffer support structure includes a stepped bracket (410) and multiple buffer mechanisms. The multiple buffer mechanisms are arranged on the stepped bracket (410), and each buffer mechanism is connected to the top of a flexible flow guide structure (420).

3. A material conveying mechanism for a concrete paver according to claim 2, characterized in that: The buffer mechanism includes a damping rod, a guide groove (611), a support plate (640), and a return spring (620). The guide groove (611) and the support plate (640) are both located on the vertical part of the inner end face of the stepped bracket (410). The guide groove (611) is engaged with the end of the crossbar (610) of the flexible flow guiding structure (420). The damping rod is located on the support plate (640). The top of the damping rod is connected to the crossbar (610) of the flexible flow guiding structure (420). The return spring (620) is sleeved on the outside of the damping rod.

4. A material conveying mechanism for a concrete paver according to any one of claims 2 or 3, characterized in that: The flexible flow guiding structure (420) includes a flexible flow guiding skirt, a crossbar (610) and two hinge rods (630). The crossbar (610) is located at the top of the flexible flow guiding skirt and is connected to the buffer mechanism. A hinge rod (630) is provided on both the left and right sides of the bottom of the flexible flow guiding skirt. The hinge rod (630) is rotatably connected to the horizontal part of the stepped support (410).

5. A material conveying mechanism for a concrete paver according to claim 4, characterized in that: The baffle structure includes a C-shaped baffle (510) and an L-shaped cover plate (520). The left and right sides of the C-shaped baffle (510) are installed at the bottom of the concrete paver frame. The L-shaped cover plate (520) is set on the upper end face of the C-shaped baffle (510). The L-shaped cover plate (520) is used to seal the gap between the upper part of the C-shaped baffle (510) and the flexible guide skirt located at the bottom.

6. A material conveying mechanism for a concrete paver according to claim 4, characterized in that: The conveying mechanism includes two roller supports (210), two roller structures (100), two conveying chains, four support frames (220), and multiple material support plates (300). The two roller structures (100) are symmetrically arranged front and rear, and each roller structure (100) is connected to one roller support (210). The two conveying chains are symmetrically arranged on the two roller supports (210). The multiple material support plates (300) are evenly arranged on the two conveying chains. The four support frames (220) are horizontally arranged between the two roller supports (210), and the end of each support frame (220) is connected to one roller support (210).

7. A material conveying mechanism for a concrete paver according to claim 6, characterized in that: The driving device includes a drive motor and a drive chain, and the output end of the drive motor is connected to the end of one of the roller structures (100) through the drive chain.

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