A screed adjusting device for a water stable layer construction

Abstract

The utility model discloses a kind of scraping plate adjusting devices for water-stable layer construction, including fixing frame and scraping plate main body, the inside of fixing frame is equipped with the lifting assembly for the height adjustment of scraping plate main body, lifting assembly includes cylinder and mounting block, the output end of cylinder is fixedly connected with mounting block, the bottom of mounting block is fixedly installed with support seat;Among them, support seat is installed with the rotating mechanism for the angle adjustment of scraping plate main body;The inside of scraping plate main body is provided with the reinforcing component facilitating to strengthen rigidity. The utility model is used by setting support seat, motor, rotating rod, carousel, through-hole, support, mounting seat, sliding disc, slide rod, sliding slot and scraping plate main body etc. component cooperation, to make slide rod rotate at uniform speed while following carousel rotation in sliding slot when angle rotation adjustment to scraping plate main body, reduce its appearance return gap, and then improve the precision of scraping plate main body angle fine adjustment.

Description

Technical Field

[0001] This utility model relates to the field of water-stabilized layer construction technology, specifically to a scraper plate adjustment device for water-stabilized layer construction. Background Technology

[0002] The screed plate adjustment device for water-stabilized layer construction is a special equipment accessory used in road base construction to control the paving thickness and flatness of water-stabilized materials (such as cement-stabilized crushed stone). It is usually installed on the paver or grader.

[0003] The existing screed plate adjustment device has two major defects: First, when the screed plate is rotated for angle adjustment, it is prone to backlash, resulting in insufficient fine adjustment accuracy; second, when laying a thick water-stabilized layer, the screed plate will undergo significant elastic deformation under the pressure of the material. Utility Model Content

[0004] The purpose of this utility model is to provide a scraper plate adjustment device for water-stabilized layer construction. This utility model uses a combination of components such as a support base, motor, rotating rod, turntable, through hole, support rod, mounting base, sliding plate, sliding rod, sliding groove, and scraper plate body to adjust the angle of the scraper plate body. This allows the sliding rod to rotate at a uniform speed within the sliding groove while following the rotation of the turntable, reducing backlash and improving the accuracy of fine-tuning the angle of the scraper plate body. This solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A scraper plate adjustment device for water-stabilized layer construction includes a fixing frame and a scraper plate body.

[0007] The inner side of the fixed frame is equipped with a lifting assembly for adjusting the height of the scraper body. The lifting assembly includes a cylinder and a mounting block. The output end of the cylinder is fixedly connected to the mounting block, and a support base is fixedly installed at the bottom of the mounting block.

[0008] The support base is equipped with a rotating mechanism for adjusting the angle of the scraper plate body.

[0009] The scraper plate body is internally equipped with reinforcing components to enhance rigidity.

[0010] Preferably, the rotating mechanism includes a motor, a rotating rod, a turntable, a through hole, a support rod, a mounting base, a sliding plate, a sliding rod, a sliding groove, and a scraper plate body. The motor is fixedly installed at the top center of the support base. A rotating rod is fixed to the output end of the motor passing through the bottom of the support base. A turntable is fixed to the bottom of the rotating rod. Through holes are opened at both ends of the turntable. A sliding groove is opened at the bottom outer end of the support base and the top outer end of the sliding plate. A sliding rod is slidably connected inside the sliding groove. A sliding rod is movably installed inside the through hole. Support rods are installed at both ends of the bottom of the turntable. A mounting base is installed at the bottom of the support rod. The scraper plate body is fixed to the inner side of the mounting base.

[0011] Preferably, the lifting assembly further includes a movable plate and a movable slot. The movable plate is fixedly installed at both ends of the support base, and the movable plate is slidably connected to the corresponding movable slot opened on the lower inner side of the fixed frame.

[0012] Preferably, the rotating mechanism further includes a locking block, a locking groove, and a positioning pin. The locking block is fixedly installed at the bottom of the support rod and is engaged inside the locking groove. A through hole is provided on the front of the locking block. The locking groove is provided at both ends of the top of the mounting base. Pin holes are provided on the upper part of the front and back of the mounting base, and the pin holes penetrate into the locking groove. The pin holes correspond to the through holes, and the pin holes and the interior of the through holes are engaged by positioning pins.

[0013] Preferably, the locating pin is located above the front and back of the mounting base.

[0014] Preferably, the reinforcing component includes a reinforcing groove and high-strength steel strands. The reinforcing grooves are opened on the front side of the scraper plate body and are arranged in several groups. High-strength steel strands are pre-embedded inside the reinforcing grooves, and the ends of the high-strength steel strands are welded to the openings of the reinforcing grooves by external welding equipment.

[0015] Preferably, a connecting seat is fixedly installed on the top of the fixing frame, and locking grooves for cylinder locking are opened at both ends of the inner side of the connecting seat, and a cylinder is installed inside the locking groove.

[0016] Preferably, the surface of the connecting seat is provided with fixing holes at both ends, and fixing bolts for connecting with an external paver are movably installed inside the fixing holes. The surface of the fixing frame is provided with reinforcing mounting holes at both ends, and the interior of the reinforcing mounting holes is fixed to the paver by external bolts.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model uses a combination of components such as a support base, motor, rotating rod, turntable, through hole, support rod, mounting base, slide plate, slide rod, slide groove, and scraper plate body to adjust the angle of the scraper plate body. This allows the slide rod to rotate at a constant speed within the slide groove, following the rotation of the turntable, thus reducing backlash and improving the accuracy of fine-tuning the angle of the scraper plate body.

[0019] This utility model improves the rigidity of the scraper body by incorporating components such as the scraper body, reinforcing grooves, and high-strength steel strands, thus preventing deformation of the scraper body when subjected to actively applied axial tensile force (80-120kN) during the paving of a thick water-stabilized layer.

[0020] In summary, the above structural combination not only enables precise adjustment of the angle of the screed plate body, but also improves the rigidity of the screed plate body by using high-strength steel strands when paving thick water-stabilized layers. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the explosion separation structure of the scraper plate adjustment device of this utility model;

[0023] Figure 3 This is a schematic diagram of the turntable and slide bar separation structure of this utility model;

[0024] Figure 4 for Figure 2 Rear view structural diagram;

[0025] Figure 5 for Figure 2 A schematic diagram of the structure viewed from below.

[0026] In the diagram: 1. Fixing frame; 101. Connecting seat; 102. Fixing bolt; 103. Reinforcing mounting hole; 2. Cylinder; 201. Mounting block; 3. Support seat; 4. Moving plate; 401. Moving groove; 5. Motor; 501. Rotating rod; 502. Turntable; 503. Through hole; 504. Support rod; 505. Locking block; 506. Locking groove; 507. Mounting seat; 508. Positioning pin; 6. Sliding plate; 601. Sliding rod; 602. Sliding groove; 7. Scraper plate body; 701. Reinforcing groove; 702. High-strength steel strand. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution:

[0029] A scraper plate adjustment device for water-stabilized layer construction includes a fixed frame 1 and a scraper plate body 7. A connecting seat 101 is fixedly installed on the top of the fixed frame 1. Locking grooves for locking and fixing cylinder 2 are opened at both ends of the inner side of the connecting seat 101. Cylinder 2 is installed inside the locking groove.

[0030] The surface of the connecting seat 101 has fixing holes at both ends. Fixing bolts 102 for connecting with an external paver are movably installed inside the fixing holes. The surface of the fixing frame 1 has reinforcing mounting holes 103 at both ends. The interior of the reinforcing mounting holes 103 is fixed to the paver by external bolts.

[0031] This utility model, through the combination of the above-mentioned fixed frame 1, connecting seat 101, fixing bolt 102 and reinforcing mounting hole 103, facilitates the installation of the adjustment device on the paver, thereby improving the stability of its fixed installation.

[0032] The inner side of the fixed frame 1 is equipped with a lifting assembly for adjusting the height of the scraper body 7. The lifting assembly includes a cylinder 2 and a mounting block 201. The output end of the cylinder 2 is fixedly connected to the mounting block 201, and the bottom of the mounting block 201 is fixedly installed with a support base 3. The lifting assembly also includes a movable plate 4 and a movable groove 401. The movable plate 4 is fixedly installed at both ends of the support base 3, and the movable plate 4 is slidably connected to the corresponding movable groove 401 opened on the lower inner side of the fixed frame 1.

[0033] This utility model incorporates a lifting component to facilitate height adjustment of the rotating mechanism and the scraper plate body 7, allowing the scraper plate body 7 to self-lock after being adjusted to a suitable height.

[0034] By activating cylinder 2, the mounting block 201 on its output end drives the support base 3 to rise or fall, so that the movable plates 4 on both sides of the support base 3 can move at a constant speed in the movable groove 401 on the fixed frame 1, thereby improving the stability during height adjustment; and the height of the movable groove 401 is lower than the height of the slide bar 601 in the rotating mechanism, so that the slide bar 601 will not disengage from the turntable 502 on the rotating mechanism during height adjustment.

[0035] Cylinder 2 is model Festo ADN-50-500; it features built-in hydraulic buffer and mechanical locking. Cylinder 2 drives the piston to move linearly using compressed air, converting air pressure energy into mechanical energy to achieve rapid lifting, lowering, positioning, and locking of the scraper plate.

[0036] Among them, the support base 3 is equipped with a rotating mechanism for adjusting the angle of the scraper plate body 7;

[0037] The rotating mechanism includes a motor 5, a rotating rod 501, a turntable 502, a through hole 503, a support rod 504, a mounting base 507, a sliding plate 6, a sliding rod 601, a sliding groove 602, and a scraper plate body 7. The motor 5 is fixedly installed at the top center of the support base 3. The output end of the motor 5, which passes through the bottom of the support base 3, is fixed with the rotating rod 501. The bottom of the rotating rod 501 is fixed with the turntable 502. Through holes 503 are opened at both ends of the turntable 502. A sliding groove 602 is opened at the bottom outer end of the support base 3 and the top outer end of the sliding plate 6. The sliding rod 601 is slidably connected inside the sliding groove 602. The sliding rod 601 is movably installed inside the through hole 503. The support rod 504 is installed at both ends of the bottom of the turntable 502. The mounting base 507 is installed at the bottom of the support rod 504. The scraper plate body 7 is fixed on the inner side of the mounting base 507.

[0038] The rotating mechanism also includes a locking block 505, a locking groove 506, and a positioning pin 508. The locking block 505 is fixedly installed at the bottom of the support rod 504 and engages with the inside of the locking groove 506. A through hole 503 is provided on the front of the locking block 505. The locking groove 506 is located at both ends of the top of the mounting base 507. Pin holes are provided on the upper part of the front and back of the mounting base 507, and the pin holes penetrate into the locking groove 506. The pin holes correspond to the through holes 503, and the pin holes and the inside of the through holes 503 are engaged by the positioning pin 508. The positioning pin 508 is located on the upper part of the front and back of the mounting base 507.

[0039] This utility model uses a combination of components such as a support base 3, a motor 5, a rotating rod 501, a turntable 502, a through hole 503, a support rod 504, a mounting base 507, a sliding plate 6, a sliding rod 601, a sliding groove 602, and a scraper plate body 7. This allows the sliding rod 601 to rotate at a uniform speed within the sliding groove 602 while following the rotation of the turntable 502 during the angle adjustment of the scraper plate body 7, reducing the occurrence of backlash and thus improving the accuracy of the angle fine adjustment of the scraper plate body 7.

[0040] Furthermore, by starting the motor 5, its output end drives the rotating rod 501 to rotate, so that the rotating rod 501 drives the turntable 502 to rotate. At the same time, the turntable 502 drives the sliding rod 601 to rotate at a constant speed in the sliding groove 602 through the through hole 503, which facilitates the fine adjustment of the angle of the scraper plate body 7; thus, it also improves the accuracy of the fine adjustment of the scraper plate body 7.

[0041] Furthermore, when it is necessary to disassemble the scraper plate body 7, the positioning pin 508 can be picked up by hand and disengaged from the pin hole provided on the mounting base 507, so that the positioning pin 508 can be moved out of the through hole 503 and the pin hole in sequence, thereby facilitating the removal of the scraper plate body 7 from the support rod 504, and making it easier to replace and repair it.

[0042] Here, motor 5 is a stepper motor, CMH090-50-30. Stepper motor 5 converts electrical energy into precise rotational motion through the principle of electromagnetic induction, and outputs high-precision torque (positioning accuracy ±0.01mm / 0.01°) through a reduction mechanism.

[0043] The scraper plate body 7 has a reinforcing component inside to enhance rigidity. The reinforcing component includes a reinforcing groove 701 and a high-strength steel strand 702. The reinforcing groove 701 is opened on the front of the scraper plate body 7 and several sets are provided. The high-strength steel strand 702 is pre-embedded inside the reinforcing groove 701. The end of the high-strength steel strand 702 is welded to the opening of the reinforcing groove 701 by external welding equipment.

[0044] This utility model improves the rigidity of the scraper body 7 by setting up components such as the scraper body 7, the reinforcing groove 701, and the high-strength steel strand 702, so as to prevent the scraper body 7 from deforming when it is subjected to an actively applied axial tensile force (80-120kN) when paving a thick water-stabilized layer.

[0045] In summary, through the above structural combination, not only can the precision of fine-tuning the angle of the scraper plate body 7 be achieved, but also the rigidity of the scraper plate body 7 can be improved by setting high-strength steel strands 702 when paving a thick water-stabilized layer.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scraper plate adjustment device for water-stabilized layer construction, comprising a fixing frame (1) and a scraper plate body (7), characterized in that: The inner side of the fixed frame (1) is equipped with a lifting component for adjusting the height of the scraper body (7). The lifting component includes a cylinder (2) and a mounting block (201). The output end of the cylinder (2) is fixedly connected to the mounting block (201), and a support base (3) is fixedly installed at the bottom of the mounting block (201). The support base (3) is equipped with a rotating mechanism for adjusting the angle of the scraper plate body (7), and the scraper plate body (7) is provided with a reinforcing component to enhance rigidity.

2. The scraper plate adjustment device for water-stabilized layer construction according to claim 1, characterized in that: The rotating mechanism includes a motor (5), a rotating rod (501), a turntable (502), a through hole (503), a support rod (504), a mounting base (507), a sliding plate (6), a sliding rod (601), a sliding groove (602), and a scraper plate body (7). The motor (5) is fixedly installed at the top center of the support base (3). The output end of the motor (5) passing through the bottom of the support base (3) is fixed with the rotating rod (501). The bottom of the rotating rod (501) is fixed with the turntable (502). 02) has through holes (503) at both ends, and the bottom outer end of the support base (3) and the top outer end of the slide plate (6) have a slide groove (602). The slide groove (602) is slidably connected to the inside of the slide rod (601). The slide rod (601) is movably installed inside the through hole (503). The bottom two ends of the turntable (502) are equipped with support rods (504). The bottom of the support rods (504) is equipped with a mounting base (507). The inner side of the mounting base (507) is fixed with the scraper plate body (7).

3. The scraper plate adjustment device for water-stabilized layer construction according to claim 1, characterized in that: The lifting assembly also includes a movable plate (4) and a movable groove (401). The movable plate (4) is fixedly installed at both ends of the support base (3). The movable plate (4) is slidably connected to the corresponding movable groove (401) opened below the inner side of the fixed frame (1).

4. The scraper plate adjustment device for water-stabilized layer construction according to claim 2, characterized in that: The rotating mechanism also includes a locking block (505), a slot (506), and a positioning pin (508). The locking block (505) is fixedly installed on the bottom of the support rod (504). The locking block (505) is engaged inside the slot (506). A through hole (503) is provided on the front of the locking block (505). The slot (506) is provided at both ends of the top of the mounting base (507). Pin holes are provided on the top of the front and back of the mounting base (507), and the pin holes penetrate into the slot (506). The pin holes correspond to the through holes (503), and the pin holes are engaged with the inside of the through holes (503) by the positioning pin (508).

5. The scraper plate adjustment device for water-stabilized layer construction according to claim 4, characterized in that: The positioning pin (508) is located above the front and back of the mounting base (507).

6. The scraper plate adjustment device for water-stabilized layer construction according to claim 1, characterized in that: The reinforcing component includes a reinforcing groove (701) and a high-strength steel strand (702). The reinforcing groove (701) is opened on the front of the scraper plate body (7) and is provided in several groups. The high-strength steel strand (702) is pre-embedded inside the reinforcing groove (701). The end of the high-strength steel strand (702) is welded to the opening of the reinforcing groove (701) by external welding equipment.

7. The scraper plate adjustment device for water-stabilized layer construction according to claim 1, characterized in that: The top of the fixed frame (1) is fixedly installed with a connecting seat (101). The inner two ends of the connecting seat (101) are provided with locking grooves for locking the cylinder (2). The cylinder (2) is installed inside the locking groove.

8. The scraper plate adjustment device for water-stabilized layer construction according to claim 7, characterized in that: The connecting seat (101) has fixing holes at both ends of its surface. Fixing bolts (102) for connecting with an external paver are movably installed inside the fixing holes. The fixing frame (1) has reinforcing mounting holes (103) at both ends of its surface. The interior of the reinforcing mounting holes (103) is fixed to the paver by external bolts.

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