Railway bridge culvert self-compacting concrete distributing device

Abstract

The utility model discloses a railway bridge culvert self -compacting concrete distribution device, by distribution support frame, moving mechanism and distribution system three parts are formed, longitudinal distribution movable frame can move along the support frame longitudinal, transverse distribution movable frame can move on vertical frame transversely, realized the all -round accurate positioning of distribution box in construction area, and the inside of distribution box is equipped with a plurality of independent storage bin, and each bin corresponds to a discharge gate, and is equipped with adjustable opening angle's discharge board, controls the down feeder speed through special blanking component, has solved the difficult problem that self -compacting concrete is easy to separate in long -distance delivery, through multipoint distribution and controllable down feeder speed, ensure that concrete even pours, and the whole set of device is flexible, and easy operation, can accurate positioning distribution point, can also accurate control down feeder speed, especially suitable for railway bridge culvert and other higher engineering application of concrete quality requirement, improves work efficiency while guaranteeing construction quality.

Description

Technical Field

[0001] This utility model relates to the field of concrete placing equipment, specifically to a self-compacting concrete placing device for railway bridges and culverts. Background Technology

[0002] Concrete placing devices are equipment used in building construction to efficiently and evenly distribute concrete. They are mainly used for large-area pouring or precise placement of concrete after it has been transported. By using concrete placing devices, the quality and progress of a project can be significantly improved, making them suitable for the needs of modern large-scale projects.

[0003] Due to its high slump and high fluidity, self-compacting concrete is prone to segregation when flowing over long distances. Therefore, compared with conventional concrete placing devices, its placing device needs to achieve uniform placement at multiple points to avoid excessive flow of concrete. To ensure the quality of pouring, during the operation of the self-compacting concrete placing device, it is necessary to slow down the falling speed of the self-compacting concrete, reduce the impact force, and prevent aggregate segregation in the self-compacting concrete caused by concentrated impact. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a self-compacting concrete placing device for railway bridges and culverts, thereby solving the aforementioned technical problems.

[0005] This utility model provides a self-compacting concrete placing device for railway bridges and culverts, including two placing support frames, and further comprising:

[0006] A longitudinal fabric moving frame is set on two fabric support frames and can move along the longitudinal length of the fabric support frames.

[0007] A transverse fabric moving frame is set on a longitudinal fabric moving frame and can move along the transverse length direction of the longitudinal fabric moving frame.

[0008] Fabric box, the fabric box is set on the horizontal fabric moving frame, the fabric box is equipped with several storage sections, and the side wall of the fabric box is provided with several discharge ports, the several storage sections and the several discharge ports correspond one to one;

[0009] The discharge plate is set on the fabric box. There are several discharge plates, and the size and shape of the discharge plates are matched with the size and shape of the discharge ports.

[0010] The material feeding assembly is installed on the material feeding box. The material feeding assembly is used to drive the opening and closing angle of several discharge plates to control the discharge speed of the material feeding box.

[0011] Preferably, there are two fabric support frames, and a first slide rail is fixedly installed on the top surface of each of the two fabric support frames. A first pulley is rotatably installed at both ends of the longitudinal fabric moving frame. The first pulleys at the two ends of the longitudinal fabric moving frame are slidably connected to the first slide rails on the two fabric support frames respectively. The first pulleys are driven by a DC motor to move on the first slide rail.

[0012] Preferably, two second slide rails are fixedly installed on the top surface of the longitudinal fabric moving frame, and two second pulleys are rotatably installed at both ends of the transverse fabric moving frame. The second pulleys at the two ends of the transverse fabric moving frame are slidably connected to the second slide rails on the two longitudinal fabric moving frames, and the second pulleys are driven to move on the second slide rails by a DC motor.

[0013] Preferably, several partitions are fixedly installed inside the fabric box. The partitions are arranged in a rectangular array and divide the internal space of the fabric box into several storage sections.

[0014] Preferably, the top of the fabric box has a feed inlet.

[0015] Preferably, an installation column is fixedly installed on the outer wall of the fabric box, and several connecting rods are hinged to the outer side of the installation column. The several connecting rods are evenly distributed in an array along the length of the installation column, and one end of each of the several connecting rods is fixedly connected to several discharge plates.

[0016] Preferably, the material feeding assembly includes several electric telescopic rods, one end of which is hinged to the outer wall of the material box, and the telescopic ends of which are hinged to the other ends of several connecting rods.

[0017] Preferably, the shape of the connecting rods is bent.

[0018] Preferably, a stirring roller is rotatably installed in each of the several storage sections inside the fabric box, and an output shaft is fixedly installed at one end of each of the several stirring rollers. The several output shafts pass through the side wall of the fabric box and are rotatably connected to the side wall of the fabric box. Several motors are fixedly installed on the side wall of the fabric box, and the output ends of the several motors are respectively fixedly connected to the several output shafts.

[0019] Compared with existing technologies, it has the following beneficial effects:

[0020] This invention provides a self-compacting concrete placing device for railway bridges and culverts. Through a bidirectional moving design of longitudinal and transverse placing frames, the placing box can move flexibly in both horizontal and vertical directions, achieving precise positioning of the placing point. Multiple independent storage sections with corresponding discharge ports are set within the placing box. This zoned storage method solves the problem of segregation caused by concentrated concrete placement, achieving uniform placement at multiple points. The adjustable discharge plate and drop assembly control the opening angle of the discharge plate to regulate the dropping speed, preventing excessive impact from excessive concrete drop speed, and achieving a stable and controllable dropping effect. Ultimately, this results in uniform, stable, and precise placement of self-compacting concrete, effectively preventing concrete segregation and ensuring pouring quality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a self-compacting concrete placing device for railway bridges and culverts according to the present invention.

[0023] Figure 2 This is a schematic diagram showing the structural relationship between the material box, the discharge plate, and the material dropping component of a self-compacting concrete placing device for railway bridges and culverts according to this utility model.

[0024] Figure 3 This is a schematic diagram of the internal structure of the placing box of a self-compacting concrete placing device for railway bridges and culverts according to this utility model.

[0025] In the diagram, 1. Fabric support frame; 2. Longitudinal fabric moving frame; 3. Transverse fabric moving frame; 4. Fabric box; 5. Discharge port; 6. Discharge plate; 7. First slide rail; 8. First pulley; 9. Second slide rail; 10. Second pulley; 11. Partition plate; 12. Feed port; 13. Mounting column; 14. Connecting rod; 15. Electric telescopic rod; 16. Mixing roller; 17. Motor. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0027] Example 1:

[0028] like Figures 1 to 3 As shown, this utility model provides a self-compacting concrete placing device for railway bridges and culverts, including two placing support frames 1, and further comprising:

[0029] The longitudinal fabric moving frame 2 is mounted on two fabric support frames 1 and can move along the longitudinal length direction of the fabric support frames 1.

[0030] A transverse fabric moving frame 3 is mounted on a longitudinal fabric moving frame 2 and can move along the transverse length direction of the longitudinal fabric moving frame 2.

[0031] Fabric box 4 is set on the horizontal fabric moving frame 3. The fabric box 4 has several storage sections and several discharge ports 5 are opened on the side wall of the fabric box 4. The several storage sections correspond one-to-one with the several discharge ports 5.

[0032] The discharge plate 6 is set on the fabric box 4. There are several discharge plates 6, and the size and shape of the several discharge plates 6 are matched with the size and shape of the several discharge ports 5.

[0033] The material feeding assembly is installed on the material box 4. The material feeding assembly is used to drive the opening and closing angle of several discharge plates 6 to control the discharge speed of the material box 4.

[0034] In use, concrete is loaded into the various storage bins of the placing box 4, and then the placing box 4 is moved to the position to be poured by the moving frame. The opening angle of the discharge plate 6 and the number of discharge plates 6 opened are adjusted by the material dropping component to control the concrete discharge speed and achieve multi-point uniform material distribution. This avoids concrete segregation or impact on the formwork caused by too fast discharge. It is suitable for self-compacting concrete, a type of concrete with high fluidity, and ensures the quality of concrete pouring.

[0035] Example 2:

[0036] like Figures 1 to 3As shown, in conjunction with the technical solution of Embodiment 1, in this technical solution, there are two fabric support frames 1. A first slide rail 7 is fixedly installed on the top surface of each of the two fabric support frames 1. A first pulley 8 is rotatably installed at each of the two ends of the longitudinal fabric moving frame 2. The first pulleys 8 at the two ends of the longitudinal fabric moving frame 2 are slidably connected to the first slide rails 7 on the two fabric support frames 1, respectively. The first pulleys 8 are driven by a DC motor to move along the first slide rail 7. The vertical moving frame can move the fabric box 4 back and forth in the construction area. The cooperation between the slide rails and pulleys ensures smooth movement and can bear the weight of the fabric box 4 and the concrete. During construction, by energizing the DC motor, the rotational kinetic energy inside the motor is converted into mechanical transmission, driving the first pulley 7 to rotate and move along the first slide rail 8, thereby adjusting the position of the fabric. This method is suitable for use in long and narrow construction scenarios such as railway bridges and culverts.

[0037] Furthermore, two second slide rails 9 are fixedly installed on the top surface of the longitudinal fabric moving frame 2, and two second pulleys 10 are rotatably installed at both ends of the transverse fabric moving frame 3. The second pulleys 10 at the two ends of the transverse fabric moving frame 3 are slidably connected to the second slide rails 9 on the two longitudinal fabric moving frames 2, respectively. The second pulleys 10 are driven by a DC motor to move on the second slide rails 9. The transverse moving frame slides left and right on the vertical frame with the fabric box 4, and cooperates with the vertical moving frame to achieve precise positioning of the fabric box 4 in space, so as to ensure the accuracy of fabric placement while moving the fabric box 4.

[0038] Furthermore, several partitions 11 are fixedly installed inside the concrete placing hopper 4. These partitions 11 are arranged in a rectangular array, and they evenly divide the internal space of the concrete placing hopper 4 into several storage sections. Multiple portions of concrete can be stored simultaneously in the storage sections of the concrete placing hopper 4. Depending on actual usage needs, the outflow of concrete from some storage sections can be controlled to prevent the concentrated falling of concrete from the concrete placing hopper 4, which could cause concentrated impact and aggregate segregation.

[0039] Furthermore, the top of the placing hopper 4 is provided with a feed inlet 12. In use, a concrete mixer truck or a concrete pump can directly pour concrete into the placing hopper 4 through the feed inlet 12. Since the inside of the hopper has been divided into multiple storage bins by the partition 11, the concrete will naturally flow into each bin.

[0040] Furthermore, a mounting column 13 is fixedly installed on the outer wall of the concrete distribution box 4. Several connecting rods 14 are hinged to the outer side of the mounting column 13. The connecting rods 14 are evenly distributed in an array along the length of the mounting column 13, and one end of each connecting rod 14 is fixedly connected to several discharge plates 6. When it is necessary to adjust the discharge rate of concrete in the concrete distribution box 4, the opening and closing angle of the door panel can be controlled by the connecting rods 14 to precisely control the flow rate of concrete.

[0041] Furthermore, the material feeding assembly includes several electric telescopic rods 15. One end of each electric telescopic rod 15 is hinged to the outer wall of the material distribution box 4, and the telescopic ends of each electric telescopic rod 15 are hinged to the other ends of several connecting rods 14. When it is necessary to adjust the feeding speed, the rotation amplitude of the connecting rods 14 is controlled by an electric push rod, thereby controlling the opening and closing angle of the discharge plate 6. This controls the feeding speed of the discharge port 5 and allows for adjustment of the concrete flow rate as needed during construction.

[0042] Furthermore, several connecting rods 14 are bent in shape. When the electric push rod is pushed, the bent connecting rods 14 generate a lever effect, converting the linear motion of the push rod into the rotary switch action of the discharge gate, increasing the control force and making the switching process smoother.

[0043] Furthermore, each of the several storage compartments within the material distribution box 4 is equipped with a rotatable mixing roller 16. One end of each mixing roller 16 is fixedly mounted with an output shaft. These output shafts pass through the side wall of the material distribution box 4 and are rotatably connected to it. Several motors 17 are fixedly mounted on the side wall of the material distribution box 4, and the output ends of each motor 17 are fixedly connected to the output shafts. When in use, starting the motors 17 will cause the mixing rollers 16 in all the storage compartments to work synchronously, solving the problem of easy stratification in self-compacting concrete and ensuring consistent concrete quality at each outlet 5. This is suitable for projects requiring continuous material distribution over long periods.

[0044] The working principle of a self-compacting concrete placing device for railway bridges and culverts disclosed in this application is as follows:

[0045] In use, the longitudinal placing frame 2 and the transverse placing frame 3 work together to move the placing box 4 to a suitable position. Then, the opening and closing angle of the discharge plate 6 is driven by controlling the extension and retraction of the electric telescopic rod 15. In addition, the electric telescopic rod 15 can also drive only part of the discharge plate 6 to open, avoiding concentrated material discharge and causing concentrated impact that could lead to aggregate segregation. The discharge speed of the self-compacting concrete is controlled by changing the opening and closing angle of the discharge plate 6. The moving frame drives the placing box 4 to move to achieve point placement, which solves the problem of segregation of self-compacting concrete during long-distance flow. Through multi-point dispersed placement and controllable discharge speed, the concrete is ensured to be poured evenly, improving construction efficiency, guaranteeing project quality, and meeting the self-compacting concrete pouring requirements of bridge and culvert structures.

[0046] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A self-compacting concrete placing device for railway bridges and culverts, comprising two placing support frames (1), characterized in that, Also includes: A longitudinal fabric moving frame (2) is provided on two fabric support frames (1) and can move along the longitudinal length direction of the fabric support frames (1); A transverse fabric moving frame (3) is provided on the longitudinal fabric moving frame (2), and the transverse fabric moving frame (3) can move along the transverse length direction of the longitudinal fabric moving frame (2); Fabric box (4), the fabric box (4) is set on the transverse fabric moving frame (3), the fabric box (4) is provided with a number of storage parts, and a number of discharge ports (5) are opened on the side wall of the fabric box (4), and the number of storage parts and the number of discharge ports (5) correspond one to one; The discharge plate (6) is set on the fabric box (4). There are several discharge plates (6), and the size and shape of the several discharge plates (6) are adapted to the size and shape of the several discharge ports (5). The material feeding assembly is disposed on the material box (4) and is used to drive the opening and closing angle of several discharge plates (6) to control the discharge speed of the material box (4).

2. The railway bridge and culvert self-compacting concrete placing device according to claim 1, characterized in that, The top surfaces of the two fabric support frames (1) are fixedly equipped with first slide rails (7), and the two ends of the longitudinal fabric moving frame (2) are rotatably equipped with first pulleys (8). The first pulleys (8) on the two ends of the longitudinal fabric moving frame (2) are slidably connected to the first slide rails (7) on the two fabric support frames (1). The first pulleys (8) are driven by a DC motor to move on the first slide rails (7).

3. The railway bridge and culvert self-compacting concrete placing device according to claim 2, characterized in that, Two second slide rails (9) are fixedly installed on the top surface of the longitudinal fabric moving frame (2). Two second pulleys (10) are rotatably installed at both ends of the transverse fabric moving frame (3). The second pulleys (10) at the two ends of the transverse fabric moving frame (3) are slidably connected to the two second slide rails (9) on the longitudinal fabric moving frame (2). The second pulleys (10) are driven by a DC motor to move on the second slide rails (9).

4. The railway bridge and culvert self-compacting concrete placing device according to claim 1, characterized in that, Several partitions (11) are fixedly installed inside the fabric box (4). The partitions (11) are arranged in a rectangular array and divide the internal space of the fabric box (4) into several storage sections.

5. A railway bridge and culvert self-compacting concrete placing device according to claim 4, characterized in that, The fabric box (4) has a feed inlet (12) on its top.

6. A railway bridge and culvert self-compacting concrete placing device according to claim 4, characterized in that, An installation column (13) is fixedly installed on the outer side wall of the fabric box (4). Several connecting rods (14) are hinged to the outer side of the installation column (13). The several connecting rods (14) are evenly distributed in an array along the length direction of the installation column (13). One end of the several connecting rods (14) is fixedly connected to several discharge plates (6).

7. A railway bridge and culvert self-compacting concrete placing device according to claim 6, characterized in that, The material feeding assembly includes several electric telescopic rods (15), one end of which is hinged to the outer wall of the fabric box (4), and the telescopic ends of which are hinged to the other ends of the connecting rods (14).

8. A railway bridge and culvert self-compacting concrete placing device according to claim 6, characterized in that, Several of the connecting rods (14) are bent.

9. A self-compacting concrete placing device for railway bridges and culverts according to claim 1, characterized in that, A stirring roller (16) is rotatably installed in each of the several storage sections inside the fabric box (4). An output shaft is fixedly installed at one end of each of the stirring rollers (16). The output shafts pass through the side wall of the fabric box (4) and are rotatably connected to the side wall of the fabric box (4). A number of motors (17) are fixedly installed on the side wall of the fabric box (4). The output ends of the motors (17) are respectively fixedly connected to the output shafts.

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