A concrete slipform paver and method of construction

Abstract

This invention relates to the field of building construction and discloses a concrete slipform paver and its construction method. The paver includes a frame, a driven wheel rotatably connected to the bottom end of the frame, a drive wheel rotatably connected to the bottom end of the frame, a drive mechanism on the outer side of the frame, a connecting mechanism on the inner side of the frame, a grooving mechanism at one end of the connecting mechanism, a reset mechanism at the top of the grooving mechanism, and a vibrator at the top of the frame. Without manual monitoring or frequent start-stop cycles, the equipment can automatically complete the cycles of walking, pausing, grooving, and reset through mechanical synchronization, ensuring uniform grooving spacing. Simultaneously, without changing the mold, it can automatically press out a deeper strip groove every four grooving cycles, achieving alternating deep and shallow grooving formation. The cooperation between the pressing strip and the moving teeth effectively avoids rigid collisions, ensuring long-term stable operation of the equipment. Compared with traditional methods, this significantly reduces labor intensity and operational deviations, and improves construction efficiency and pavement forming quality.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a concrete slipform paver and its construction method. Background Technology

[0002] In the construction of concrete pavements and canal linings, slipform pavers are used to achieve integrated operations of concrete paving, vibration, and shaping. To meet the requirements for anti-skid properties and surface drainage, transverse or oblique strip grooves need to be pressed into the uncured concrete surface. One existing grooving method is continuous grooving as the paver moves, where the grooving mold is in continuous contact with the ground and moves synchronously. However, during the moving and compacting process, relative sliding occurs between the mold and the concrete, which not only causes the grooving position to wobble and the groove shape to be unstable, but also causes the mold to exert a significant dragging effect on the surface concrete, damaging the aggregate structure, causing surface roughening and reduced smoothness, and severely restricting the forming quality of the strip grooves.

[0003] To address the aforementioned issues, some construction methods employ a method of moving a certain distance and then stopping to compact the grooves. This involves manually controlling the paver to travel a set distance, stopping, and then restarting the compaction mechanism to compact the grooves once more, repeating this "forward-stop-compact" cycle. This method requires operators to continuously monitor the equipment and frequently start and stop it, resulting in high labor intensity and potential timing errors. Furthermore, it is inefficient and difficult to ensure uniform groove spacing. In addition, actual construction requires compacting deeper grooves at intervals. Current practices also involve changing the compaction mold to a different size after stopping the machine, a cumbersome process that further impacts construction continuity and operational efficiency. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that existing slipform pavers have problems such as dragging concrete while pressing strip grooves, resulting in unstable groove shape, and frequent manual start-stop of pressing after stopping the machine, which leads to low efficiency and high strength.

[0005] The above-mentioned technical problems are solved by the following technical solution: This invention proposes a concrete slipform paver, which includes,

[0006] A frame, with a driven wheel rotatably connected to the bottom end of the frame, a drive wheel rotatably connected to the bottom end of the frame, a drive mechanism provided on the outer side of the frame, a connecting mechanism provided on the inner side of the frame, a pressing groove mechanism provided at one end of the connecting mechanism, a reset mechanism provided at the top end of the pressing groove mechanism, and a vibrating rod provided at the top end of the frame;

[0007] The drive mechanism includes a motor mounted on the outside of the frame, a large gear fixedly connected to the output end of the motor, and a small gear fixedly connected to the outside of the drive wheel, wherein the small gear meshes with the large gear.

[0008] Specifically, once the equipment is positioned on the concrete surface, the vibrator is first inserted into the concrete to compact it. The motor is then started, driving the large gear at its output end to rotate. This large gear meshes with the small gear, which in turn drives the drive wheel to rotate. The drive wheel then synchronously drives the driven wheel, allowing the entire machine to move across the concrete surface. During this movement, the vibrator compacts the concrete in front of it, and combined with the rolling action of the drive wheel and driven wheel, the concrete is laid and initially compacted.

[0009] In a preferred embodiment of the concrete slipform paver of the present invention: a slot is provided on the outer side of the large gear, and a protrusion is fixedly connected to the inner sidewall of the large gear away from the slot.

[0010] Specifically, during continuous rotation of the large gear, the slot on its outer side periodically rotates to a position opposite to the small gear. When the slot aligns with the small gear, the meshing between the large gear and the small gear is temporarily interrupted, thereby stopping the power output to the drive wheel and pausing the movement of the equipment. At the same time, the protrusion located on the inner wall of the large gear rotates with the large gear to a specific angle, squeezing the subsequent trigger block to initiate the grooving action. Through the positional coordination of the slot and the protrusion, it is ensured that the equipment completes one grooving precisely at the moment of each pause in movement, realizing the mechanical synchronous automatic cycle of walking and grooving without manual intervention or sensor control, significantly improving the reliability and uniformity of intermittent grooving.

[0011] In a preferred embodiment of the concrete slipform paver of the present invention: the connecting mechanism includes a frame, a trigger block fixedly connected to one end of the frame, and a support rod fixedly connected to the inner side of the frame, wherein the trigger block is located on the inner side wall of the large gear;

[0012] Specifically, when the protrusion rotates with the large gear and contacts the trigger block, the protrusion squeezes the trigger block, pushing the frame as a whole to move downward, thereby driving the pressure plate to press down to press the groove; when the groove moves away from the small gear, the protrusion also disengages from the trigger block, and under the elastic force of the reset mechanism, it will drive the pressure plate and the frame to reset upward, completing one working cycle.

[0013] In a preferred embodiment of the concrete slipform paver of the present invention: the grooving mechanism includes a pressure plate fixedly connected to the frame, a fixed tooth fixedly connected to the bottom end of the pressure plate, and a movable tooth slidably connected inside the pressure plate, wherein the length of the movable tooth is greater than the length of the fixed tooth;

[0014] Specifically, when the frame moves the pressure plate downward, the fixed tooth and the movable tooth move downward synchronously. Since the movable tooth is longer than the fixed tooth, the movable tooth will contact the concrete surface before the fixed tooth during the descent. After contact, the movable tooth is resisted by the concrete and retracts upward relative to the pressure plate until one end of it abuts against the support rod inside the frame. At this time, the length of the movable tooth protruding from the pressure plate is equal to the length of the fixed tooth. Then, the movable tooth and the fixed tooth continue to press down synchronously, pressing out a strip groove of uniform depth on the concrete surface, thereby ensuring the consistency of the ordinary groove.

[0015] In a preferred embodiment of the concrete slipform paver of the present invention: the reset mechanism includes a sleeve fixedly connected to the bottom end of the frame, a slide rod slidably connected inside the sleeve, a rotating disk fixedly connected to the bottom end of the slide rod, a first spring sleeved on the outside of the slide rod, and a rotating ring rotatably connected to one end of the sleeve.

[0016] The rotating disk is rotatably connected to the top of the pressure plate, one end of the first spring is fixedly connected to the rotating disk, the other end of the first spring is fixedly connected to the rotating ring, and a pressure strip is fixedly connected to the side of the rotating disk near its rotation direction.

[0017] Specifically, when the pressure plate is pressed down, the rotating disk drives the slide rod to slide downward inside the sleeve, while stretching the first spring to store elastic potential energy. When the protrusion disengages from the trigger block, the first spring contracts and resets, pulling the slide rod upward, which in turn drives the pressure plate to lift up through the rotating disk, completing the demolding after the groove is pressed.

[0018] In a preferred embodiment of the concrete slipform paver of the present invention: the inner wall of the sleeve is provided with four straight grooves and four arc grooves along the circumference. The straight grooves and the arc grooves are alternately arranged along the circumference, and the end of each straight groove is connected to the beginning of an arc groove, and the end of each arc groove is connected to the beginning of the next straight groove.

[0019] Specifically, when the slide bar slides downwards, the guide block moves along the trajectory of the arc groove. Because the arc groove is arc-shaped, it forces the slide bar to rotate around its axis. When the slide bar slides upwards, the guide block moves along the straight groove. The straight groove is a straight line and does not cause rotation. The four straight grooves and four arc grooves are alternately connected end to end, forming a closed loop track. After each complete up-and-down slide, the guide block moves from one arc groove to the next straight groove, and then to the next arc groove; this causes the slide bar to rotate unidirectionally by a fixed angle, realizing the intermittent unidirectional rotation of the rotating disk.

[0020] The pressure bar on the side of the rotating disk closest to the direction of rotation will rotate to above the moving tooth. Before the pressure bar rotates to above the moving tooth, the moving tooth has not yet contacted the ground. Before the pressure bar leaves above the moving tooth, the moving tooth will also not contact the ground, ensuring that there is no rigid collision between the pressure bar and the moving tooth, avoiding damage or jamming of parts, and thus ensuring that the equipment can operate stably for a long time.

[0021] Within one cycle, when the pressure strip is above the moving tooth, the moving tooth is limited and cannot retract upwards. At this time, the moving tooth will press into the concrete at its original length, thereby forming a deeper strip groove. When the pressure strip is not above the moving tooth, the moving tooth can retract freely and press out a strip groove of normal depth in sync with the fixed tooth.

[0022] In a preferred embodiment of the concrete slipform paver of the present invention: the straight groove includes an inclined groove section formed on the inner wall of the sleeve, and a boss fixedly connected to the inner wall of the sleeve; one end of the inclined groove section is connected to the arc groove, and the other end of the inclined groove section is connected to one side of the boss; the side of the boss away from the inclined groove section is connected to the arc groove.

[0023] Specifically, when the slide bar slides downwards, under the height limiting effect of the boss, the guide block can only move along the guide trajectory of the arc groove and eventually fall into the interior of the inclined groove section; since the radial depth of the inclined groove section is greater than the radial depth of the arc groove, when the slide bar slides upwards, the guide block will only slide along the inclined surface of the inclined groove section to the surface of the boss, and eventually cross the boss and fall into the interior of the next arc groove; in each reciprocating slide, the guide block moves along the arc groove each time it slides down, and moves along the inclined groove section and the boss each time it slides up.

[0024] In a preferred embodiment of the concrete slipform paver of the present invention: a guide block is slidably provided inside the slide rod, a second spring is fixedly connected to one end of the guide block, and the other end of the second spring is fixedly connected to the inner wall of the slide rod; the guide block slides along the straight groove and the arc groove.

[0025] Specifically, under the elastic thrust of the second spring, the guide block is always pressed against the surface of the straight groove and the arc groove on the inner wall of the sleeve, so that when the slide rod slides up and down, the guide block will retract or extend along the inside of the straight groove and the arc groove.

[0026] The present invention also provides a construction method based on the aforementioned concrete slipform paver, which further includes the following steps:

[0027] The control equipment moves continuously along the concrete surface;

[0028] When the equipment reaches the set position, it automatically stops moving and presses down the grooving mechanism to press out a strip groove on the concrete surface.

[0029] After the grooving is completed, the grooving mechanism will automatically lift and resume movement, repeating the above steps.

[0030] In a preferred embodiment of the construction method described in this invention: during the process of pressing down the groove mechanism, the long teeth first contact the concrete surface and retract upwards until they are flush with the short teeth, and then press down synchronously to form a strip groove of uniform depth.

[0031] The beneficial effects of this invention are as follows: Without manual monitoring or frequent start-stop cycles, the equipment can automatically complete the cycles of walking, pausing, grooving, and resetting through mechanical synchronization, ensuring uniform groove spacing; simultaneously, without changing the mold, it can automatically press out a deeper strip groove every four grooving cycles, achieving alternating deep and shallow groove formation; through the cooperation of the pressing strip and the moving teeth, rigid collisions are effectively avoided, ensuring long-term stable operation of the equipment; compared with traditional methods, it significantly reduces labor intensity and operational deviations, and improves construction efficiency and road surface forming quality. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0033] Figure 1 A practical schematic diagram of the overall structure of the present invention is shown.

[0034] Figure 2 A schematic diagram of the overall side structure of the present invention is shown.

[0035] Figure 3 A partial cross-sectional view of the present invention is shown as a structural schematic diagram.

[0036] Figure 4 A partial structural schematic diagram of the present invention is shown.

[0037] Figure 5 A partial schematic diagram of the two structures of the present invention is shown.

[0038] Figure 6 A partial cross-sectional schematic diagram of the present invention is shown.

[0039] Figure 7 An enlarged structural schematic diagram of part A of the present invention is shown.

[0040] Figure 8 A schematic diagram of the reset mechanism structure of the present invention is shown.

[0041] Figure 9 A partial cross-sectional schematic diagram of the three structures of the present invention is shown.

[0042] Figure 10 A schematic diagram of the cross-sectional structure of the sleeve of the present invention is shown.

[0043] Figure 11 A schematic diagram of the pressure bar rotation process of the present invention is shown. Detailed Implementation

[0044] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0045] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0046] Reference Figures 1-11 This embodiment provides a concrete slipform paver, which includes,

[0047] A frame 1 has a driven wheel 11 rotatably connected to its bottom end and a drive wheel 12 rotatably connected to its bottom end. A drive mechanism 2 is provided on the outer side of the frame 1, and a connecting mechanism 3 is provided on the inner side of the frame 1. A grooving mechanism 4 is provided at one end of the connecting mechanism 3, and a reset mechanism 5 is provided at the top end of the grooving mechanism 4. A vibrating rod 6 is provided at the top end of the frame 1. The drive mechanism 2 includes a motor 21 mounted on the outer side of the frame 1, a large gear 22 fixedly connected to the output end of the motor 21, and a small gear 23 fixedly connected to the outer side of the drive wheel 12. The small gear 23 meshes with the large gear 22. Once the equipment is positioned on the concrete surface, the vibrator 6 is first inserted into the concrete to compact the interior. The motor 21 is then started, which drives the large gear 22 at its output end to rotate. The large gear 22 meshes with the small gear 23 to rotate, which in turn drives the drive wheel 12 to rotate. The drive wheel 12 synchronously drives the driven wheel 11 to rotate, thus enabling the entire machine to move on the concrete surface. During this movement, the vibrator 6 compacts the concrete in front of it, and in conjunction with the rolling action of the drive wheel 12 and the driven wheel 11, the concrete is spread and initially compacted.

[0048] In some embodiments, such as Figures 3-6The large gear 22 has a slot 221 on its outer side, and a protrusion 222 is fixedly connected to the inner side wall of the large gear 22 away from the slot 221. During continuous rotation of the large gear 22, the slot 221 on its outer side will periodically rotate to a position opposite to the small gear 23. When the slot 221 is aligned with the small gear 23, the meshing between the large gear 22 and the small gear 23 is temporarily interrupted, thereby stopping the power output to the drive wheel 12 and pausing the movement of the equipment. At the same time, the protrusion 222 located on the inner side wall of the large gear 22 will rotate with the large gear 22 to a specific angle, squeezing the subsequent trigger block 32 to start the grooving action. Through the positional cooperation of the slot 221 and the protrusion 222, it is ensured that the equipment completes one grooving exactly at the moment of each pause in movement, realizing the mechanical synchronous automatic cycle of walking and grooving without manual intervention or sensor control, which significantly improves the reliability and uniformity of intermittent grooving.

[0049] In some embodiments, such as Figure 6 The connecting mechanism 3 includes a frame 31, a trigger block 32 fixedly connected to one end of the frame 31, and a support rod 33 fixedly connected to the inner side of the frame 31. The trigger block 32 is located on the inner wall of the large gear 22. When the protrusion 222 rotates with the large gear 22 and contacts the trigger block 32, the protrusion 222 squeezes the trigger block 32, pushing the frame 31 to move downward as a whole, thereby driving the pressure plate 41 to press down to press the groove. When the groove 221 rotates away from the small gear 23, the protrusion 222 also disengages from the trigger block 32. Under the elastic force of the reset mechanism 5, the pressure plate 41 and the frame 31 will be driven to reset upward, completing one working cycle.

[0050] In some embodiments, such as Figure 6 and Figure 7 The grooving mechanism 4 includes a pressure plate 41 fixedly connected to the frame 31, a fixed tooth 42 fixedly connected to the bottom end of the pressure plate 41, and a movable tooth 43 slidably connected inside the pressure plate 41, wherein the length of the movable tooth 43 is greater than the length of the fixed tooth 42. When the frame 31 moves the pressure plate 41 downward, the fixed tooth 42 and the movable tooth 43 move downward synchronously. Since the length of the movable tooth 43 is greater than that of the fixed tooth 42, the movable tooth 43 will contact the concrete surface before the fixed tooth 42 during the descent. After contact, the movable tooth 43 is resisted by the concrete and retracts upward relative to the pressure plate 41 until one end of it abuts against the support rod 33 on the inner side of the frame 31. At this time, the length of the movable tooth 43 protruding from the pressure plate 41 is equal to the length of the fixed tooth 42. Then the movable tooth 43 and the fixed tooth 42 continue to press down synchronously, pressing out a strip groove of uniform depth on the concrete surface, thereby ensuring the consistency of the ordinary groove.

[0051] In some embodiments, such as Figures 8-11The reset mechanism 5 includes a sleeve 51 fixedly connected to the bottom end of the frame 1, a slide rod 52 slidably connected inside the sleeve 51, a rotating disk 53 fixedly connected to the bottom end of the slide rod 52, a first spring 54 sleeved on the outside of the slide rod 52, and a rotating ring 55 rotatably connected to one end of the sleeve 51. The rotating disk 53 is rotatably connected to the top end of the pressure plate 41. One end of the first spring 54 is fixedly connected to the rotating disk 53, and the other end of the first spring 54 is fixedly connected to the rotating ring 55. A pressure strip 531 is fixedly connected to the side of the rotating disk 53 near its rotation direction. When the pressure plate 41 is pressed down, the slide rod 52 is driven to slide downward inside the sleeve 51 through the rotating disk 53, while the first spring 54 is stretched to store elastic potential energy. When the protrusion 222 disengages from the trigger block 32, the first spring 54 contracts and resets, pulling the slide rod 52 to slide upward, and then the pressure plate 41 is lifted through the rotating disk 53 to complete the demolding after the groove is pressed.

[0052] In some embodiments, as shown in Figures 1-2, the inner wall of the sleeve 51 is provided with four straight grooves 511 and four arc grooves 512 along the circumferential direction. The straight grooves 511 and arc grooves 512 are alternately arranged along the circumferential direction, and the end of each straight groove 511 is connected to the beginning of an arc groove 512, and the end of each arc groove 512 is connected to the beginning of the next straight groove 511. When the slide rod 52 slides downward, the guide block 521 moves along the trajectory of the arc groove 512. Since the arc groove 512 is arc-shaped, it will force the slide rod 52 to generate a rotation about the axis. When the slide rod 52 slides upward, the guide block 521 moves along the straight groove 511. The straight groove 511 is a straight groove and will not cause rotation. The four straight grooves 511 and the four arc grooves 512 are alternately connected end to end to form a closed loop track. Each time a complete up-and-down sliding motion is completed, the guide block 521 moves from one arc groove 512 into the next straight groove 511, and then into the next arc groove 512; this causes the slide rod 52 to rotate unidirectionally by a fixed angle, realizing the intermittent unidirectional rotation of the rotating disk 53. The pressure bar 531 on the side of the rotating disk 53 closest to the direction of rotation will rotate to above the moving tooth 43. Before the pressure bar 531 rotates to above the moving tooth 43, the moving tooth 43 has not yet contacted the ground; before the pressure bar 531 leaves above the moving tooth 43, the moving tooth 43 will also not contact the ground, ensuring that there is no rigid collision between the pressure bar 531 and the moving tooth 43, avoiding damage or jamming of parts, and thus ensuring that the equipment can operate stably for a long time. Within one cycle, when the pressure strip 531 is above the moving tooth 43, the moving tooth 43 is restricted and cannot retract upward. At this time, the moving tooth 43 will press into the concrete at its original length, thereby forming a deeper strip groove. When the pressure strip 531 is not above the moving tooth 43, the moving tooth 43 can retract freely and press out a strip groove of normal depth in sync with the fixed tooth 42.

[0053] In some embodiments, such as Figure 10The straight groove 511 includes an inclined groove section 5111 formed on the inner wall of the sleeve 51, and a boss 5112 fixedly connected to the inner wall of the sleeve 51; one end of the inclined groove section 5111 communicates with the arc groove 512, and the other end of the inclined groove section 5111 is connected to one side of the boss 5112; the side of the boss 5112 away from the inclined groove section 5111 communicates with the arc groove 512; when the slide rod 52 slides downward, under the height limiting action of the boss 5112, the guide block 521 can only follow the guide trajectory of the arc groove 512. The guide block 521 moves and eventually falls into the interior of the inclined groove section 5111. Since the radial depth of the inclined groove section 5111 is greater than the radial depth of the arc groove 512, when the slide rod 52 slides upward, the guide block 521 will only slide along the inclined surface of the inclined groove section 5111 to the surface of the boss 5112, and eventually cross the boss 5112 and fall into the interior of the next arc groove 512. In each reciprocating slide, the guide block 521 moves along the arc groove 512 each time it slides down, and moves along the inclined groove section 5111 and the boss 5112 each time it slides up.

[0054] In some embodiments, such as Figure 9 A guide block 521 is slidably provided inside the slide rod 52. One end of the guide block 521 is fixedly connected to a second spring 522, and the other end of the second spring 522 is fixedly connected to the inner wall of the slide rod 52. The guide block 521 slides along the straight groove 511 and the arc groove 512. Under the elastic thrust of the second spring 522, the guide block 521 is always pressed against the surface of the straight groove 511 and the arc groove 512 on the inner wall of the sleeve 51. Thus, when the slide rod 52 slides up and down, the guide block 521 will move along the guide trajectory of the straight groove 511 and the arc groove 512, and at the same time, it is forced to retract or extend into the slide rod 52 according to the shape of the groove.

[0055] In some embodiments, such as Figures 9-11 A construction method includes the following steps: controlling the equipment to continuously travel along the concrete surface; when the equipment travels to a set position, it automatically stops traveling and presses down the grooving mechanism to press out a strip groove on the concrete surface; after the grooving is completed, it automatically lifts up the grooving mechanism and resumes traveling, and repeats the above steps. During the process of pressing down the grooving mechanism, the long teeth first contact the concrete surface and retract upwards until they are flush with the short teeth and then press down synchronously to form a strip groove of uniform depth.

[0056] Working principle: When the equipment is placed on the concrete road surface, the vibrator 6 compacts the concrete, and the motor 21 drives the small gear 23 and drive wheel 12 to move the equipment through the large gear 22. The slot 221 on the large gear 22 periodically aligns with the small gear 23 to stop the equipment. At the same time, the protrusion 222 squeezes the trigger block 32, which drives the pressure plate 41 to move down through the frame 31. The fixed tooth 42 and the moving tooth 43 press down synchronously. Since the moving tooth 43 is longer than the fixed tooth 42, it first contacts the concrete and retracts upward to abut the support rod 33. Then, it presses out a normal strip groove synchronously with the fixed tooth 42. After that, the first spring 54 resets and drives the pressure plate 41 to lift up.

[0057] During the reciprocating sliding of the slide rod 52, the guide block 521 moves along the channel under the action of the second spring 522. When sliding down, it falls into the inclined groove section 5111 along the arc groove 512, and the guide of the arc groove 512 will drive the slide rod 52 to rotate. When sliding up, it passes over the boss 5112 along the inclined groove section 5111 and falls into the next arc groove 512. This sliding does not produce rotation. After each reciprocating sliding, the slide rod 52 rotates in one direction by a fixed angle, causing the pressure strip 531 on the rotating disk 53 to rotate intermittently. Before the pressure strip 531 rotates above the moving tooth 43 and before it leaves, the moving tooth 43 does not contact the ground, thus avoiding collision. When the pressure strip 531 is above the moving tooth 43, the moving tooth 43 is limited and cannot retract, pressing out a deeper strip groove with its original length. At other times, it presses out ordinary grooves, thus realizing automatic intermittent grooving without manual intervention. The groove spacing is uniform, and deep grooves can be pressed out periodically without changing the mold, improving construction efficiency and forming quality.

[0058] It should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A concrete slipform paver, characterized in that: include, A frame (1) is rotatably connected to a driven wheel (11) at the bottom end of the frame (1) and a drive wheel (12) at the bottom end of the frame (1). A drive mechanism (2) is provided on the outer side of the frame (1) and a connecting mechanism (3) is provided on the inner side of the frame (1). A groove pressing mechanism (4) is provided at one end of the connecting mechanism (3) and a reset mechanism (5) is provided at the top end of the groove pressing mechanism (4). The drive mechanism (2) includes a motor (21) mounted on the outside of the frame (1), a large gear (22) fixedly connected to the output end of the motor (21), and a small gear (23) fixedly connected to the outside of the drive wheel (12). The small gear (23) meshes with the large gear (22). The outer side of the large gear (22) is provided with a slot (221), and a protrusion (222) is fixedly connected to the inner side wall of the large gear (22) away from the slot (221). The connecting mechanism (3) includes a frame (31), a trigger block (32) fixedly connected to one end of the frame (31), and a support rod (33) fixedly connected to the inner side of the frame (31). The trigger block (32) is located on the inner wall of the large gear (22). The pressing mechanism (4) includes a pressing plate (41) fixedly connected to the frame (31), a fixed tooth (42) fixedly connected to the bottom end of the pressing plate (41), and a movable tooth (43) slidably connected inside the pressing plate (41), and the length of the movable tooth (43) is greater than the length of the fixed tooth (42). The reset mechanism (5) includes a sleeve (51) fixedly connected to the bottom end of the frame (1), a slide rod (52) slidably connected inside the sleeve (51), a rotating disk (53) fixedly connected to the bottom end of the slide rod (52), a first spring (54) sleeved on the outside of the slide rod (52), and a rotating ring (55) rotatably connected to one end of the sleeve (51). The rotating disk (53) is rotatably connected to the top of the pressure plate (41), one end of the first spring (54) is fixedly connected to the rotating disk (53), the other end of the first spring (54) is fixedly connected to the rotating ring (55), and a pressure strip (531) is fixedly connected to the side of the rotating disk (53) near its rotation direction. The inner wall of the sleeve (51) is provided with four straight grooves (511) and four arc grooves (512) along the circumferential direction. The straight grooves (511) and the arc grooves (512) are alternately arranged along the circumferential direction, and the end of each straight groove (511) is connected to the beginning of an arc groove (512), and the end of each arc groove (512) is connected to the beginning of the next straight groove (511). The straight groove (511) includes an inclined groove section (5111) formed on the inner wall of the sleeve (51) and a boss (5112) fixedly connected to the inner wall of the sleeve (51); one end of the inclined groove section (5111) is connected to the arc groove (512), and the other end of the inclined groove section (5111) is connected to one side of the boss (5112); the side of the boss (5112) away from the inclined groove section (5111) is connected to the arc groove (512).

2. The concrete slipform paver according to claim 1, characterized in that: The slide rod (52) is slidably provided with a guide block (521). One end of the guide block (521) is fixedly connected to a second spring (522), and the other end of the second spring (522) is fixedly connected to the inner wall of the slide rod (52). The guide block (521) slides along the straight groove (511) and the arc groove (512).

3. A construction method, characterized in that: The concrete slipform paver according to claim 1 or 2 further includes the following steps. The control equipment moves continuously along the concrete surface; When the equipment reaches the set position, it automatically stops moving and presses down the grooving mechanism to press out a strip groove on the concrete surface. After the grooving is completed, the grooving mechanism will automatically lift and resume movement, repeating the above steps.

4. The construction method according to claim 3, characterized in that: During the pressing and grooving process, the long teeth first contact the concrete surface and retract upwards until they are flush with the short teeth, and then press down synchronously to form a strip groove of uniform depth.

Images