A cloth leveling and smoothing jig

Abstract

The application relates to a cloth leveling slip-form machine, belonging to the technical field of road and bridge machines. The cloth leveling slip-form machine comprises a main truss, lifting devices arranged at two ends of the main truss and a walking device; the lower end of the lifting device is fixed on the walking device; a material conveying bin and a buffer bin are arranged on the main truss in an up-down distribution mode; a vibrating and leveling plate and a surface collecting and leveling plate are sequentially arranged on one side of the main truss; a plurality of discharging holes with opening degrees controlled by switch plates are arranged at intervals on the bottom surface of the material conveying bin; a spiral auger is arranged in the material conveying bin; the lower end of the buffer bin is provided with an opening controlled by an opening and closing plate; a motor-driven stirring column is arranged in the buffer bin; and a feeding device is arranged on the material conveying bin. The slip-form machine can realize integrated construction of cloth feeding, vibrating and leveling and finishing and leveling, has high comprehensive efficiency and high construction quality.

Description

TECHNICAL FIELD

[0001] The present application relates to a material distribution and leveling slipform machine, belonging to the technical field of road and bridge machinery. BACKGROUND

[0002] When paving a bridge or a road surface, concrete is used as raw material, and the concrete is sequentially subjected to material distribution, vibration, leveling, etc., so that the final flatness of the concrete road surface meets the design requirements. In this construction, each process has a specific machine, such as a material distribution machine, a vibrating machine, a leveling machine, etc. The construction efficiency is low because each machine is sequentially used. Each machine needs to be installed and arranged in place, and then removed from the construction site after use, which is time-consuming and labor-intensive. In addition, the purchase of each machine also costs a lot.

[0003] With the continuous development of construction machinery, it is important to reduce the process steps, and integrated construction machinery is more demanded by users. However, there are deficiencies in precise material distribution and finishing leveling. In particular, when constructing a wide road surface, the material distribution is not uniform in thickness. In addition, the integrated construction is a difficult problem for road surface finishing. How to save the process of using separate equipment for finishing is a problem, and the emergence of a new material distribution and leveling slipform machine is very important. There is also a problem that the construction precision of the road surface is not high because the finishing is not performed after the vibrating and leveling plate is constructed. SUMMARY

[0004] The purpose of the present application is to provide a material distribution and leveling slipform machine that realizes integrated construction of feeding, material distribution, vibration and leveling, and finishing leveling by using a completely new structure.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] A material distribution and leveling slipform machine, comprising a main truss, a lifting device and a traveling device connected to both ends of the main truss, the lower end of the lifting device being fixed to the traveling device; a material feeding bin and a buffer bin being arranged on the main truss in a top-down manner; a vibrating and leveling plate and a finishing plate being arranged in sequence on one side of the main truss.

[0007] A plurality of discharge holes with opening degrees controlled by opening and closing plates are arranged at intervals on the bottom surface of the material feeding bin, and a spiral auger is arranged inside the material feeding bin.

[0008] The lower end of the buffer bin is provided with an opening controlled by an opening and closing plate; and a motor-driven stirring column is arranged inside the buffer bin.

[0009] The material feeding bin is provided with a feeding device.

[0010] A further improvement of the present technical solution is that the inside of the buffer bin is divided into sub-buffer bins by a plurality of partitions, and each sub-buffer bin is provided with an opening and closing plate.

[0011] The further improvement of the technical solution is that each sub-buffer bin corresponds to at least one discharging hole.

[0012] The further improvement of the technical solution is that the vibrating and leveling plate is driven to vibrate by an eccentric shaft driven by a motor, and the motor is provided with a frequency converter.

[0013] The further improvement of the technical solution is that the vibrating and leveling plate is driven to vibrate by an eccentric shaft driven by a motor, and the motor is provided with a frequency converter.

[0014] The further improvement of the technical solution is that the feeding device comprises a cement tank truck.

[0015] The further improvement of the technical solution is that the feeding device further comprises a spiral auger feeding device arranged at one end of the material conveying bin, and the cement tank truck fills the material into the spiral auger feeding device.

[0016] The further improvement of the technical solution is that the switch plate and the opening and closing plate are driven to move and control the opening degree by using a hydraulic oil cylinder.

[0017] The further improvement of the technical solution is that the surface collecting and leveling plate is driven by a driving mechanism to move horizontally and linearly reciprocally.

[0018] The further improvement of the technical solution is that the side surface of the main truss is provided with a plurality of suspension frames for suspending the surface collecting and leveling plate; a limiting slide rail is fixedly arranged at the lower part of the suspension frame, and the surface collecting and leveling plate is installed on the limiting slide rail; a motor is arranged on one of the suspension frames, and a crank and rocker mechanism is used for transmission between the motor and the surface collecting and leveling plate; a crank is fixedly arranged on the output shaft of the motor, one end of a connecting rod is hingedly connected with a rocker of the upper end surface of the surface collecting and leveling plate, and the other end is hingedly connected with the crank.

[0019] Due to the adoption of the above technical solution, the technical effects achieved by the present application are as follows:

[0020] The present application sets the material conveying bin and the buffer bin to cooperate to distribute the concrete material, the material conveying bin can realize horizontal conveying of the material to enter the buffer bin more evenly, the opening and closing plate is arranged at the lower discharging opening of the buffer bin, the opening degree of the opening and closing plate is controlled to meet the forming requirement of the concrete with different slump degrees, the switch plate is arranged at the lower discharging hole of the material conveying bin to the buffer bin, the opening degree of the switch plate is controlled to adjust the material conveying speed into the buffer bin to meet the requirement of different working conditions, and the material conveying bin and the buffer bin cooperate to realize precise material distribution.

[0021] The present application sets the stirring column in the buffer bin to continuously stir the concrete material to prevent the concrete material from solidifying and promote the discharging of the concrete material.

[0022] The application sets a surface collecting and smoothing plate behind the vibrating and smoothing plate, can finish the fine finishing of the concrete surface in time after vibrating and smoothing, and improves the construction quality.

[0023] The application prevents the backward movement of the concrete material by the feeding plate and pushes the concrete material forward.

[0024] The slip form machine can realize the integrated construction of feeding, distributing, initial smoothing, finishing and fine finishing, has high construction accuracy, high comprehensive efficiency and high construction quality. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the whole machine three-dimensional schematic diagram of the application Figure 1 ;

[0026] Figure 2 is the whole machine three-dimensional schematic diagram of the application Figure 2 ;

[0027] Figure 3 is the local schematic diagram of the application

[0028] Figure 4 is the surface collecting and smoothing plate installation schematic diagram of the application

[0029] Figure 5 is the feeding plate and vibrating and smoothing plate schematic diagram of the application

[0030] Figure 6 is the material conveying bin schematic diagram of the application

[0031] Figure 7 is the material conveying bin bottom schematic diagram of the application

[0032] Figure 8 is the buffer bin schematic diagram of the application

[0033] Figure 9 is the buffer bin bottom schematic diagram of the application

[0034] 1, main truss, 2, lifting device, 3, walking device, 4, material conveying bin, 5, buffer bin, 6, vibrating and smoothing plate, 7, surface collecting and smoothing plate, 8, spiral auger, 9, feeding plate, 10, switch plate, 11, opening and closing plate, 12, stirring column, 13, edge material baffle, 14, spiral auger feeding device, 15, suspension frame, 16, limit slide rail, 17, crank, 18, connecting rod, 19, rocker. EMBODIMENT

[0035] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application is further described below in combination with specific embodiments.

[0036] The application is a kind of cloth leveling slipform machine, which is used for the construction of concrete pavement and can realize the integrated construction of cloth, vibration leveling and finishing. In the following description, the front direction of the machine is the front.

[0037] As shown in Figure 1 , Figure 2 , the slipform machine includes a main truss 1, a lifting device 2 and a walking device 3. The main truss 1 serves as the main support for providing support for other components. The walking device 3 drives the whole machine to walk longitudinally, which is usually a walking seat with walking wheels driven by a motor. The lifting device 2 is installed on the walking device 3, and the two ends of the main truss 1 are connected to the lifting ends of the lifting device 2, which generally uses a hydraulic cylinder. The walking device 3 and the lifting device 2 are conventionally provided. A hydraulic system is provided on the slipform machine to provide hydraulic power for the hydraulic cylinder and the like.

[0038] As shown in Figure 1 , Figure 2 , Figure 3 , the slipform machine is provided with a material feeding bin 4 and a buffer bin 5 on the main truss 1, and the material feeding bin 4 is above the buffer bin 5. An upper feeding device is provided for the material feeding bin 4 to inject concrete material into the material feeding bin 4. The lower end surface of the material feeding bin 4 has a plurality of discharge holes, and a spiral auger 8 is provided in the material feeding bin 4 to convey the material to each position in the material feeding bin 4. Each discharge hole is provided with a switch plate 10 to control the opening degree of the discharge hole. Specifically, the switch plate 10 moves in a plane and a straight line to control the opening degree of the discharge hole, thereby realizing the speed control of the discharging; the movement of the switch plate 10 is realized by the corresponding hydraulic oil cylinder drive. The spiral auger 8 in the material feeding bin 4 is driven to rotate by a motor cooperating with a speed reducer. As shown in Figure 6 , Figure 7 , wherein Figure 7 is a partial view of the bottom of the material feeding bin, which is used to represent the switch plate 10. The switch plate 10 is provided corresponding to the discharge hole of the material feeding bin 4, and slide rail grooves are provided at both sides of the discharge hole, and the switch plate is in the slide rail groove, which supports and guides the movement of the switch plate.

[0039] The material in the material feeding bin 4 enters the buffer bin 5 through the discharge hole, and the buffer bin 5 buffers and distributes the material. The lower end of the buffer bin 5 is provided with an opening, and the opening is controlled by a plurality of opening and closing plates 11. A motor-driven stirring column 12 is provided in the buffer bin 5 to continuously stir the concrete material during the working process to prevent the concrete from solidifying and make the concrete material discharge smoothly. The structure of the stirring column 12 includes a central shaft and stirring blade columns, and a plurality of stirring blade columns are fixedly arranged on the central shaft. As shown in Figure 8 , Figure 9The inside of the buffer warehouse 5 is separated into multiple sub-buffer warehouses by partitions, Figure 8 Each sub-buffer warehouse uses an opening and closing plate 11 to control the opening degree of the lower end opening. If the opening and closing plate 11 is longer, each opening and closing plate uses two or three hydraulic oil cylinders to drive the opening and closing to move synchronously. In addition, a vibration motor can be fixedly arranged on the outer wall of the buffer warehouse 5 to vibrate the wall, which can also prevent the concrete material from solidifying.

[0040] The opening and closing plates 10 and 11 are rectangular plates arranged at the opening through a sliding groove and driven to move by a hydraulic oil cylinder to realize opening degree control.

[0041] The slip form machine is provided with a vibrating and leveling plate 6 and a surface collecting and leveling plate 7 on one side of the main truss 1. The vibrating and leveling plate 6 vibrates and levels the concrete after the material is laid, and then the surface collecting and leveling plate 7 finishes the concrete surface.

[0042] Further, a feeding plate 9 is usually arranged between the vibrating and leveling plate 6 and the buffer warehouse 5. The feeding plate 9 is fixed on the side of the lower end of the buffer warehouse 5, and the vibrating and leveling plate 6 is located behind the feeding plate 9. The lower end of the feeding plate 9 is higher than the lower end of the vibrating and leveling plate 6. The height of the lower end of the feeding plate 9 is slightly higher than the height of the lower end of the vibrating and leveling plate 6 and is also higher than the height of the designed road surface. In this way, a space is generated below the feeding plate 9, which can temporarily store the concrete material at the position of the feeding plate 9 to prevent the material from being excessively accumulated at the vibrating and leveling plate 6. During the work, the feeding plate 9 pushes the excess concrete material forward to prevent the excess concrete material from flowing backward. As shown in Figure 5

[0043] For the vibrating and leveling plate 6, the plate is bent and spliced, and an eccentric shaft is arranged inside the plate. The eccentric shaft is driven to rotate by a motor to achieve the effect of vibrating and leveling the concrete surface. The motor is provided with a frequency converter, which can adjust the rotation frequency of the eccentric shaft according to different concrete slump degrees. At both ends of the vibrating and leveling plate 6, an edge material baffle 13 is usually fixedly arranged to block the material at the edge position.

[0044] For the surface collecting and leveling plate 7, the following is preferably arranged. A driving mechanism is arranged for the surface collecting and leveling plate, and the driving mechanism is driven to realize transverse reciprocating linear movement to form the effect of rubbing and leveling the surface.

[0045] ​The driving mechanism of the surface collecting and smoothing plate 7 is as follows. A plurality of suspension frames 15 are arranged on the side of the main truss 1, and a limiting slide rail 16 is fixedly arranged at the lower part of the suspension frame 15. The surface collecting and smoothing plate 7 is installed on the limiting slide rail 16 through a connecting frame. The surface collecting and smoothing plate 7 is a long strip-shaped plate, and therefore a plurality of suspension frames 15 are arranged to suspend the surface collecting and smoothing plate 7. A motor is installed on one of the suspension frames 15, and a crank rocker mechanism is used to connect and drive the output shaft of the motor and the surface collecting and smoothing plate 7. The crank rocker mechanism has one crank and one rocker. The output shaft of the motor is fixedly arranged with a crank 17, one end of a connecting rod 18 is hingedly connected with a rocker 19 at the upper end surface of the surface collecting and smoothing plate 7, and the other end is hingedly connected with the outer end of the crank 17. The output shaft of the motor drives the crank 17 to make a circular motion, and the crank 17 makes the rocker 19 swing back and forth. Since the connecting rod 18 is hingedly connected with the crank 17 and the rocker 19, when the crank 17 drives the connecting rod 18 to move, the connecting rod 18 can adapt to the real-time position state, and further make the surface collecting and smoothing plate 7 move back and forth in a straight line under the limiting control of the limiting slide rail 16. By arranging the surface collecting and smoothing plate 7, the traces left by the vibrating and smoothing plate when the slip-form machine stops can be smoothed and repaired, and the flatness after the concrete surface construction is ensured.

[0046] Preferably, the surface collecting and smoothing plate 7 moves horizontally at a low frequency to precisely smooth the surface of the vibrated and smoothed concrete. The specific structure is shown in Figure 4

[0047] The slip-form machine can directly polish and collect the surface after the concrete is vibrated and smoothed. In the old process, a separate polishing and surface collecting machine is used after the concrete is initially cured, and the time is generally more than 30 minutes. During this period, a large amount of water loss will cause the concrete to shrink rapidly and crack. The slip-form machine can timely cure the concrete after the slip-forming, realize the integrated construction of material distribution, paving, compaction, and surface collecting, and timely cover the film or geotextile after the integrated construction is completed to ensure the realization of the uninterrupted integrated construction of the concrete pavement and improve the overall construction quality.

[0048] In the specific implementation, preferably, a plurality of partitions are fixedly arranged in the buffer bin 5, the buffer bin 5 is divided into a plurality of sub-buffer bins by using the partitions, and each sub-buffer bin is correspondingly provided with an opening and closing plate 11. Each sub-buffer bin is correspondingly provided with at least one discharging hole, and generally one discharging hole is arranged.

[0049] The slip-form machine needs to be provided with a feeding device, which can be a cement tanker, a water pump, or a ground pump. When the cement tanker is used, a spiral auger feeding device can be additionally arranged. The specific description is as follows.

[0050] ​When the construction environment is a double-deck bridge, the cement tank truck is used for feeding preferentially. At this time, the screw auger feeding device is used in cooperation with the cement tank truck, and the screw auger feeding device 14 is fixedly arranged at one end of the material conveying bin 4. The cement tank truck travels on the other deck of the bridge, one end of the screw auger feeding device 14 is located on the material conveying bin 4, and the other end is located on one side of the cement tank truck. The cement tank truck feeds the material into the screw auger feeding device 14, and then the screw auger feeding device 14 feeds the material into the material conveying bin 4. Compared with the pump feeding, the construction cost is reduced.

[0051] When the construction environment is a single-deck bridge or a separated double-deck bridge, the pump feeding is usually used. If the concrete pump truck is under the bridge, the pump feeding is used. If the concrete pump truck is on the bridge, the pump feeding is used.

[0052] When the construction environment is a non-reinforced concrete bridge deck, the cement tank truck is directly used. The cement tank truck is arranged in front of the slip-form machine in the traveling direction of the slip-form machine, and the cement tank truck directly feeds the material into the material conveying bin of the slip-form machine. The receiving hopper can be arranged at the corresponding position of the material conveying bin. Two or more cement tank trucks are arranged, and the cement tank trucks inject the material into the material conveying bin 4 at multiple spaced positions.

[0053] The hydraulic system is arranged on the slip-form machine, and the hydraulic pump is driven by the motor to control the lifting of the whole machine, the opening and closing of the shutter plate 11 and the opening and closing of the switch plate 10.

[0054] The elevation control device of the slip-form machine adopts a three-dimensional laser control system and a compatible ultrasonic control system. The laser control system takes the laser emitter as a reference, the road surface data is introduced into the controller, the corresponding elevation of the laser receiver is matched through the walking distance to control the hydraulic system to adjust the height of the whole machine in real time, so that the data and the actual elevation are consistent. The ultrasonic control system uses the upper elevation to pull a steel wire rope, and the ultrasonic sensor adjusts in real time according to the height of the steel wire rope, so that the data and the actual elevation are consistent. The three-dimensional laser control system and the ultrasonic control system can be freely switched.

[0055] The slip-form machine can realize the integrated construction of material distribution, vibration and leveling, and finishing and leveling, has high construction efficiency and high construction quality. The slip-form machine cooperates the material conveying bin and the buffer bin, uniformly feeds the material from the material conveying bin into the buffer bin, and then distributes and discharges the material from the buffer bin. The whole discharging process is smooth and uniform, which provides a good guarantee for subsequent construction.

[0056] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A screed for smoothing a layer of material, characterised in that: The main truss (1) is connected with lifting devices (2) and walking devices (3) arranged at both ends of the main truss (1); the lower end of the lifting device (2) is fixed on the walking device (3); the main truss (1) is provided with material conveying bins (4) and buffer bins (5) arranged in an up-down distribution; a vibrating and leveling plate (6) and a surface collecting and leveling plate (7) are arranged in sequence on one side of the main truss (1); The bottom surface of the material conveying bin (4) is provided with a plurality of discharge holes with opening degrees controlled by switch plates (10); a spiral auger (8) is arranged in the material conveying bin (4); The lower end of the buffer bin (5) is provided with an opening controlled by an opening and closing plate (11); a motor-driven stirring column (12) is arranged in the buffer bin (5); The material conveying bin (4) is provided with a feeding device; the buffer bin (5) is divided into sub-buffer bins by a plurality of partitions; each sub-buffer bin is provided with an opening and closing plate (11); The surface collecting and leveling plate (7) is driven by a driving mechanism to move linearly and reciprocally in a transverse direction; a plurality of suspension frames (15) for suspending the surface collecting and leveling plate (7) are arranged on the side of the main truss (1); a limiting slide rail (16) is fixedly arranged at the lower part of the suspension frame (15), and the surface collecting and leveling plate (7) is installed on the limiting slide rail (16); a motor is arranged on one of the suspension frames (15), and a crank and rocker mechanism is used for transmission between the motor and the surface collecting and leveling plate (7); a crank (17) is fixedly arranged on the output shaft of the motor, one end of a connecting rod (18) is hingedly connected with a rocker (19) on the upper end surface of the surface collecting and leveling plate (7), and the other end of the connecting rod (18) is hingedly connected with the crank (17); edge material baffle plates (13) are fixedly arranged at both ends of the vibrating and leveling plate (6); a feeding plate (9) is arranged between the vibrating and leveling plate (6) and the buffer bin (5), and the lower end surface of the feeding plate (9) is higher than the lower end surface of the vibrating and leveling plate (6).

2. A cloth levelling jig according to claim 1, wherein: Each sub-buffer bin corresponds to at least one discharge hole.

3. A cloth levelling and smoothing jigger as claimed in claim 1 wherein: The vibrating and leveling plate (6) is driven to vibrate by an eccentric block shaft driven by a motor, and the motor is provided with a frequency converter.

4. A cloth levelling and smoothing jigger as claimed in claim 1 wherein: The feeding device includes a cement tanker.

5. A cloth levelling jig according to claim 4, wherein: The feeding device further includes a spiral auger feeding device (14) arranged at one end of the material conveying bin (4), and the cement tanker fills the material into the spiral auger feeding device.

6. A cloth levelling jig according to claim 1, wherein: The switch plates (10) and the opening and closing plates (11) are driven to move by hydraulic oil cylinders to control the opening degrees.

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