Gravel hardcore leveling equipment

Abstract

The utility model discloses broken stone hardcore leveling equipment, which belongs to the field of broken stone hardcore leveling and is characterized in that the rear end of a tail adjusting frame is connected with a stabilizing wheel, and the angles of the tail adjusting frame and the stabilizing wheel are adjusted through stretching and retracting of a hydraulic cylinder; a hopper is installed at the upper end of the tail adjusting frame through an installation base, a spiral feeding piece is arranged at the inner bottom of the hopper, a speed reducer is arranged on one side of the hopper, the outer end of the speed reducer is connected with a servo motor, and the servo motor drives the spiral feeding piece to achieve material dispersing and feeding. A discharging opening is formed in the lower end of the hopper, a screening net is installed at the lower end of the discharging opening, and broken stone particles are brought into the screening net through a spiral feeding piece. And the spiral feeding piece driven by the servo motor efficiently and uniformly conveys the materials to a designated position, so that the continuity and the uniformity of material conveying are ensured, and the working efficiency is improved. After the materials pass through the screening net, broken stone particles accurately fall into gaps of the cushion layer, the compactness and flatness of the cushion layer are improved, and stable engineering quality is ensured.

Description

Technical Field

[0001] The utility model relates to the field of crushed stone cushion leveling, in particular to a crushed stone cushion leveling device. Background Art

[0002] Gravel bedding equipment is specialized equipment used for laying and leveling gravel bedding in construction projects, particularly in infrastructure construction such as roads, bridges, and tunnels. The equipment transports gravel from a storage or loading area to the required placement location, typically via a conveyor belt, pipe, or riprap system. Utilizing advanced positioning and control systems, the equipment ensures the gravel bedding is precisely laid according to design specifications, including thickness, width, and slope. Equipped with leveling devices such as scrapers, vibrating plates, and leveling rollers, the equipment levels the laid gravel, achieving the required surface flatness and density.

[0003] In current gravel subgrade leveling equipment, while the leveling rollers provide effective initial compaction, they often struggle to completely eliminate all potholes and gaps. This limitation necessitates extensive manual filling to compensate for any deficiencies left by mechanical leveling. Manual filling is not only inefficient and increases labor costs, but can also lead to inconsistent filling quality due to human factors, compromising the overall flatness and quality of the project. Furthermore, the long hours of manual labor pose a potential health risk to workers, further highlighting the shortcomings of current gravel subgrade leveling equipment in terms of automation and efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a crushed stone cushion leveling device, which can effectively solve the problems raised in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A crushed stone cushion leveling device includes a hanging frame, a support frame, and a leveling roller. The hanging frame is located at the front end of the support frame and is connected to a mobile vehicle through the hanging frame. The leveling roller is installed on the support frame and is used to level the crushed stone cushion.

[0007] The rear end of the support frame is connected to the tail adjustment frame through a connecting frame and a hydraulic cylinder. The rear end of the tail adjustment frame is connected to a stabilizing wheel. The angles of the tail adjustment frame and the stabilizing wheel are adjusted by telescoping the hydraulic cylinder.

[0008] A hopper is mounted on the upper end of the tail adjustment frame through a mounting seat, and a spiral feeding piece is provided at the inner bottom of the hopper. A reducer is provided on one side of the hopper, and a servo motor is connected to the outer end of the reducer. The servo motor drives the spiral feeding piece to disperse and feed the material.

[0009] The lower end of the hopper is provided with a discharge port, and a screening net is installed at the lower end of the discharge port. The crushed stone particles are brought into the screening net by a spiral feeding piece, and the crushed stone particles fall into the gaps of the crushed stone cushion layer through the screening net, thereby filling and leveling the crushed stone cushion layer.

[0010] As an optional solution of the present application, the hanging bracket is welded and fixed to the support frame, and a square frame is provided on both sides of the support frame, a bearing device is installed in the square frame, and both ends of the leveling roller are connected to the bearing device through a rotating shaft;

[0011] As an optional solution of the present application, one group of the connecting frames is welded to the support frame, and the other group of the connecting frames is welded to the tail adjustment frame, and both ends of the hydraulic cylinder are hingedly connected to the two groups of connecting frames;

[0012] As an optional solution of the present application, the mounting base is welded to the lower end of the hopper, and the circular hole on the mounting base is aligned with the circular hole on the tail adjustment frame. Bolts, nuts and anti-slip gaskets are used to fix the mounting base and the tail adjustment frame. The cross section of the hopper is V-shaped, and the lower end of the hopper is arc-shaped.

[0013] As an optional solution of the present application, both ends of the spiral feeding member are mounted on the hopper, and bearing devices are provided at both ends of the spiral feeding member. The output end of the reducer is connected to the spiral feeding member, and the output end of the servo motor is connected to the reducer.

[0014] As an optional solution of the present application, the discharge port is a rectangular frame, and a connecting frame is provided on the outside of the screening net, which is fixed to the discharge port by bolts, nuts and anti-slip gaskets.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this utility model, the spiral feeder, driven by a servo motor, efficiently and evenly disperses material from the hopper and delivers it to the designated location. This design ensures continuous and uniform material delivery, improving work efficiency. After the material passes through the screening screen, the crushed stone particles precisely fall into the gaps in the crushed stone cushion, filling and leveling the cushion. This not only improves the density and smoothness of the crushed stone cushion, but also ensures the stability of the project quality.

[0017] The tail adjustment bracket and stabilizing wheels allow the equipment to be flexibly adjusted to suit different working environments and requirements. This design enhances the equipment's adaptability and flexibility, improving its practicality in complex construction environments. The bracket and support frame are welded together, ensuring structural stability and durability. Furthermore, the square frames and bearings on both sides of the support frame provide strong support for the smooth rotation of the leveling rollers, further enhancing the equipment's reliability and service life.

[0018] The design of the entire equipment is concise and easy to operate. Through simple adjustment and control, the leveling of the gravel cushion can be achieved, reducing the difficulty of operation and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a diagram showing the overall structure of the present utility model;

[0021] Figure 3 This is a top view of the overall structure of the utility model;

[0022] Figure 4 This is a diagram showing the tail adjustment frame, hopper, and spiral feeding parts of the utility model;

[0023] Figure 5 This is a display diagram of the tail adjustment frame, hopper, discharge port, and screening net of the utility model.

[0024] In the figure: 1. Hanging bracket; 2. Support frame; 3. Leveling roller; 4. Tail adjustment frame; 5. Stabilizing wheel; 6. Connecting frame; 7. Hydraulic cylinder; 8. Hopper; 9. Mounting seat; 10. Screw feeder; 11. Servo motor; 12. Reducer; 13. Discharge port; 14. Screening net. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 - Figure 5 The figure shows a device for leveling a crushed stone base. It includes a hanger 1, a support frame 2, and a leveling roller 3. The hanger 1 is designed to be located at the front end of the support frame 2 and is connected to a mobile vehicle through the hanger 1 to facilitate the movement and positioning of the device. The leveling roller 3 is mounted on the support frame 2. Its main function is to level the crushed stone base and ensure its flatness.

[0027] The rear end of the support frame 2 is connected to the tail adjustment frame 4 through the connecting frame 6 and the hydraulic cylinder 7. The rear end of the tail adjustment frame 4 is connected to the stabilizing wheel 5. The angle of the tail adjustment frame 4 and the stabilizing wheel 5 can be adjusted by the telescopic action of the hydraulic cylinder 7 to adapt to different working environments and needs.

[0028] A hopper 8 is mounted on the upper end of the tail adjustment frame 4 via a mounting base 9. A spiral feeder 10 is located at the inner bottom of the hopper 8, which is used to evenly disperse and convey the material. A reducer 12 is also located on one side of the hopper 8. A servo motor 11 is connected to the outer end of the reducer 12. Driven by the servo motor 11, the spiral feeder 10 efficiently disperses and conveys the material.

[0029] The lower end of the hopper 8 is provided with a discharge port 13, and the lower end of the discharge port 13 is installed with a screening screen 14. The crushed stone particles are brought into the screening screen 14 by the action of the spiral feeder 10, and then the crushed stone particles fall through the screening screen 14 into the gaps of the crushed stone cushion layer, thereby filling and leveling the crushed stone cushion layer.

[0030] The hanger 1 and support frame 2 are welded together to ensure structural stability and durability. A square frame is provided on either side of the support frame 2, and a bearing assembly is installed within the frame to ensure that both ends of the leveling roller 3 are connected to the bearing assembly via a rotating shaft, thereby achieving smooth rotation of the leveling roller 3.

[0031] One set of connecting frames 6 is welded to the support frame 2, while the other set of connecting frames 6 is welded to the tail adjustment frame 4. The two ends of the hydraulic cylinder 7 are connected to the two sets of connecting frames 6 by hinges, so that the tail adjustment frame 4 and the stabilizing wheel 5 can flexibly adjust the angle.

[0032] Mounting base 9 is welded to the lower end of hopper 8, with the circular hole in mounting base 9 corresponding to the circular hole in tail adjustment bracket 4. Bolts, nuts, and non-slip washers secure mounting base 9 to tail adjustment bracket 4. Hopper 8 has a V-shaped cross section, with a curved lower end, which facilitates smooth material flow and even dispersion.

[0033] The two ends of the spiral feeder 10 are mounted on the hopper 8, and bearing devices are provided at both ends to ensure the smooth rotation of the spiral feeder 10. The output end of the reducer 12 is connected to the spiral feeder 10, and the output end of the servo motor 11 is connected to the reducer 12. Through the precise control of the servo motor 11, the spiral feeder 10 can achieve efficient and uniform material transportation.

[0034] The discharge port 13 is designed as a rectangular frame, with a connecting frame attached to the screen 14. Bolts, nuts, and non-slip washers secure the connecting frame to the discharge port 13, ensuring the stability and reliability of the screen 14. This design not only ensures the uniform distribution of gravel particles but also ensures the smoothness and quality of the gravel bed.

[0035] Connect bracket 1 to a mobile vehicle to ensure the equipment's movement and positioning. Start servo motor 11, which drives screw feeder 10 via reducer 12. Screw feeder 10 evenly disperses the material and conveys it to hopper 8. From hopper 8's discharge port 13, the material falls onto screening screen 14. Gravel particles pass through screening screen 14 and fall into the gaps in the gravel cushion, filling and leveling the material.

[0036] Through the telescopic action of the hydraulic cylinder 7, adjust the angles of the tail adjustment frame 4 and the stabilizing wheel 5 to adapt to different working environments and needs. Make sure that the hanger 1 and the support frame 2 are fixed by welding to ensure the stability and durability of the structure. Check the bearing device in the square frame of the support frame 2 to ensure the smooth rotation of the leveling roller 3. Confirm the welding position of the connecting frame 6 and ensure that the hydraulic cylinder 7 and the connecting frame 6 are connected by a hinge. Check the fixation of the mounting seat 9 and the tail adjustment frame 4 to ensure firmness. Confirm the "V" shape and the curved lower end of the hopper 8 to ensure smooth flow and uniform dispersion of the material. Check the bearing device of the spiral feeder 10 to ensure its smooth rotation. Ensure the fixation of the discharge port 13 and the screening net 14, and achieve stability and reliability through the connecting frame and bolts, nuts and anti-slip gaskets.

[0037] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. However, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the elements.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A crushed stone cushion leveling device, comprising a hanger (1), a support frame (2), and a leveling roller (3), wherein the hanger (1) is located at the front end of the support frame (2) and is connected to a mobile vehicle through the hanger (1), and the leveling roller (3) is installed on the support frame (2). The crushed stone cushion is leveled by the leveling roller (3), and the device is characterized in that: The rear end of the support frame (2) is connected to the tail adjustment frame (4) via a connecting frame (6) and a hydraulic cylinder (7); the rear end of the tail adjustment frame (4) is connected to a stabilizing wheel (5); and the angles of the tail adjustment frame (4) and the stabilizing wheel (5) are adjusted by telescoping the hydraulic cylinder (7); A hopper (8) is mounted on the upper end of the tail adjustment frame (4) via a mounting seat (9), and a spiral feeding member (10) is provided at the inner bottom of the hopper (8). A reducer (12) is provided on one side of the hopper (8), and a servo motor (11) is connected to the outer end of the reducer (12). The servo motor (11) drives the spiral feeding member (10) to disperse and feed the material. The lower end of the hopper (8) is provided with a discharge port (13), and a screening net (14) is installed at the lower end of the discharge port (13). The crushed stone particles are brought into the screening net (14) by the spiral feeding member (10), and the crushed stone particles fall into the gaps of the crushed stone cushion layer through the screening net (14), thereby achieving filling and leveling of the crushed stone cushion layer.

2. The crushed stone cushion leveling device according to claim 1, characterized in that: The hanger (1) is welded and fixed to the support frame (2), and square frames are provided on both sides of the support frame (2). Bearing devices are installed in the square frames, and both ends of the leveling roller (3) are connected to the bearing devices via a rotating shaft.

3. The crushed stone cushion leveling device according to claim 2, characterized in that: One group of the connecting frames (6) is welded to the support frame (2), and the other group of the connecting frames (6) is welded to the tail adjustment frame (4). Both ends of the hydraulic cylinder (7) are hinge-connected to the two groups of connecting frames (6).

4. The crushed stone cushion leveling device according to claim 3, characterized in that: The mounting seat (9) is welded to the lower end of the hopper (8), and the circular hole on the mounting seat (9) is directly opposite to the circular hole on the tail adjustment frame (4). Bolts, nuts and anti-slip gaskets are used to fix the mounting seat (9) and the tail adjustment frame (4). The cross section of the hopper (8) is designed in a "V" shape, and the lower end of the hopper (8) is designed in an arc shape.

5. The crushed stone cushion leveling device according to claim 4, characterized in that: Both ends of the spiral feeding member (10) are mounted on the hopper (8), and bearing devices are provided at both ends of the spiral feeding member (10). The output end of the reducer (12) is connected to the spiral feeding member (10), and the output end of the servo motor (11) is connected to the reducer (12).

6. The crushed stone cushion leveling device according to claim 5, characterized in that: The discharge port (13) is a rectangular frame, and a connection frame is provided on the outside of the screening net (14), and the connection frame and the discharge port (13) are fixed by bolts, nuts and anti-slip gaskets.

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