Roller slideway structure of self-discharging carriage

Abstract

The utility model relates to the technical field of dump trucks, in particular to a roller slideway structure of a dump truck carriage. Comprising a cross beam, one end of the cross beam is fixedly connected with the bottom of a push plate, the cross beam is a hollow C-shaped beam with the bottom open, a roller support is installed on a carriage bottom plate at one end of the cross beam and located at the bottom open position of the cross beam, and roller shafts are arranged on the roller support and located on the upper side and the lower side of the carriage bottom plate respectively. The two ends of each roller shaft are respectively provided with a roller, the two rollers on the lower roller shaft are in rolling contact with the carriage bottom plate, the two rollers on the upper roller shaft are in rolling contact with the edge of the bottom opening of the cross beam, the bottom of the other end of the cross beam is provided with a pulley through a pulley shaft, and the pulley is in rolling contact with the carriage bottom plate. When the cross beam translates, the moving direction is fixed under the limitation of the upper roller and the lower roller, the push plate can be prevented from jumping up and down, materials are prevented from entering a gap between the push plate and a carriage bottom plate, and thorough and residue-free unloading is guaranteed.

Description

Technical field:

[0001] The utility model relates to the technical field of dump trucks, in particular to a roller slideway structure of a dump truck compartment. Background technology:

[0002] At present, when bulk material dump trucks are unloading, one of the commonly used unloading methods is a flat push unloading structure. For example, the patent application with publication number CN203727233U discloses a flat push dump truck, which mainly pushes the materials in the truck to the rear door for unloading by cooperating with the oil cylinder and the push plate. This unloading method in which the oil cylinder drives the push plate to move horizontally still has the following problems in the specific practical application process: First, when the push plate moves horizontally, there is surface contact and sliding friction between the push plate and the bottom plate of the truck, which has high friction, the oil cylinder is subjected to high force, is easy to be damaged, and has high noise; second, during the unloading process, the material easily enters the gap between the push plate and the bottom plate of the truck, causing the push plate to jump up and down, and it is easy for material to remain, resulting in the problem of incomplete unloading.

[0003] In summary, the above-mentioned problems in the process of unloading by pushing the plate horizontally in the dump truck compartment have become technical problems that need to be solved urgently in the industry. Utility model content:

[0004] The utility model provides a roller slideway structure for a dump truck to overcome the shortcomings of the prior art, thereby solving the problem of large friction between the push plate and the truck bottom plate during translation and the problem of materials easily entering the gap between the push plate and the truck bottom plate.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A roller slideway structure for a dump truck comprises a crossbeam movably arranged on a floor of the truck, one end of the crossbeam is fixedly connected to the bottom of a push plate, the crossbeam is a C-shaped beam which is hollow inside and open at the bottom, a roller bracket is installed on the floor of the truck at one end of the crossbeam, the roller bracket is located at the bottom opening of the crossbeam, a roller shaft is respectively provided on the upper and lower sides of the floor of the truck, rollers are respectively installed at both ends of each roller shaft, two rollers on the lower roller shaft are in rolling contact with the floor of the truck, two rollers on the upper roller shaft are in rolling contact with the edge of the bottom opening of the crossbeam, a pulley is installed at the bottom of the other end of the crossbeam through a pulley shaft, and the pulley is in rolling contact with the floor of the truck.

[0007] A plurality of cross beams are connected to the bottom of the push plate.

[0008] The top of the crossbeam is connected with a conical blanking plate.

[0009] An oil cylinder is arranged in the cross beam, one end of the oil cylinder is connected to the cross beam through a rotating shaft, and the other end of the oil cylinder is connected to the oil cylinder bracket through a rotating shaft.

[0010] The bottom and side of the push plate are provided with scrapers.

[0011] The utility model adopts the above scheme and has the following advantages:

[0012] By fixing the bottom of the push plate with the cross beam, one end of the cross beam is limited by the rollers on the upper and lower roller shafts and the car floor, which can prevent the cross beam from jumping up and down during translation. The other end of the cross beam is in rolling contact with the car floor through the pulley, and the sliding friction between the push plate and the car floor is changed to rolling friction between the cross beam and the car floor. The friction is small, the force on the cylinder is small, it is not easy to be damaged, and the noise is small. When the cross beam translates, it moves in a fixed direction under the restriction of the upper and lower rollers, which can prevent the push plate from jumping up and down and prevent materials from entering the gap between the push plate and the car floor, ensuring that the unloading is complete and residue-free. Description of the drawings:

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the side sectional structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the forward enlarged structure of the utility model.

[0016] In the figure, 1, car floor, 2, cross beam, 3, push plate, 4, roller bracket, 5, roller shaft, 6, roller, 7, pulley shaft, 8, pulley, 9, blanking plate, 10, oil cylinder, 11, oil cylinder bracket, 12, scraper. Specific implementation method:

[0017] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0018] like Figure 1-3 As shown, a roller slideway structure of a dump truck comprises a cross beam 2 movably arranged on a truck floor 1, one end of the cross beam 2 is fixedly connected to the bottom of a push plate 3, the cross beam 2 is a C-shaped beam with a hollow interior and an open bottom, a roller bracket 4 is installed on the truck floor 1 at one end of the cross beam 2, the roller bracket 4 is located at the bottom opening position of the cross beam 2, a roller shaft 5 is respectively provided on the roller bracket 4 on the upper and lower sides of the truck floor 1, rollers 6 are respectively installed at both ends of each roller shaft 5, the two rollers 6 on the lower roller shaft 5 are in rolling contact with the truck floor 1, the two rollers 6 on the upper roller shaft 5 are in rolling contact with the edge of the bottom opening of the cross beam 2, a pulley 8 is installed on the bottom of the other end of the cross beam 2 through a pulley shaft 7, and the pulley 8 is in rolling contact with the truck floor 1.

[0019] A plurality of cross beams 2 are connected to the bottom of the push plate 3 , and the specific number can be selected according to the width of the push plate 3 .

[0020] The top of the cross beam 2 is connected with a conical blanking plate 9 to prevent materials from piling up on the top of the cross beam 2 .

[0021] The cross beam 2 is provided with a cylinder 10, one end of the cylinder 10 is connected to the cross beam 2 via a rotating shaft, and the other end of the cylinder 2 is connected to a cylinder bracket 11 via a rotating shaft, and the cylinder bracket 11 can be fixedly connected to the carriage chassis. The cylinder 10 is integrated inside the cross beam 2, so that the internal space of the cross beam 2 is fully utilized, and the cylinder 10 can be protected.

[0022] The bottom and side of the push plate 3 are provided with a scraper 12, which contacts the surface of the carriage, has a small contact area and small friction, and can scrape the materials in the carriage cleanly.

[0023] Working principle:

[0024] When the oil cylinder 10 is extended, the oil cylinder 10 drives the cross beam 2 to move, and the cross beam 2 drives the push plate 3 to move synchronously, and the push plate 3 unloads the materials in the compartment. When the oil cylinder 10 is retracted, it can drive the cross beam 2 and the push plate 3 to reset. During the movement of the cross beam 2, the upper and lower rollers 6 on the roller bracket 4 clamp the cross beam 2 and the compartment floor 1 to limit the position, which not only realizes rolling friction, but also prevents the cross beam 2 from jumping up and down during the translation process, ensuring the stability of the translation of the push plate 3, so as to avoid the material from entering the gap between the push plate 3 and the compartment floor 1, and ensuring that the unloading is complete and without residue; in addition, the bottom of the other end of the cross beam 2 rolls with the compartment floor 1 through the pulley 8. Under the cooperation of the roller 6 and the pulley 8, the cross beam 2 and the compartment floor 1 completely realize rolling friction, which reduces the friction and noise.

[0025] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0026] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A roller slideway structure for a dump truck, characterized in that: It includes a crossbeam movably arranged on the floor of the carriage, one end of the crossbeam is fixedly connected to the bottom of the push plate, the crossbeam is a C-shaped beam with a hollow interior and an open bottom, a roller bracket is installed on the floor of the carriage at one end of the crossbeam, the roller bracket is located at the bottom opening position of the crossbeam, and a roller shaft is respectively provided on the upper and lower sides of the floor of the carriage on the roller bracket, and rollers are respectively installed at both ends of each roller shaft, the two rollers on the lower roller shaft are in rolling contact with the floor of the carriage, and the two rollers on the upper roller shaft are in rolling contact with the edge of the bottom opening of the crossbeam, and a pulley is installed at the bottom of the other end of the crossbeam through a pulley shaft, and the pulley is in rolling contact with the floor of the carriage.

2. The roller slideway structure of a dump truck according to claim 1, characterized in that: A plurality of cross beams are connected to the bottom of the push plate.

3. The roller slideway structure of a dump truck according to claim 1, characterized in that: The top of the crossbeam is connected with a conical blanking plate.

4. The roller slideway structure of a dump truck according to claim 1, characterized in that: An oil cylinder is arranged in the cross beam, one end of the oil cylinder is connected to the cross beam through a rotating shaft, and the other end of the oil cylinder is connected to the oil cylinder bracket through a rotating shaft.

5. The roller slideway structure of a dump truck according to claim 1, characterized in that: The bottom and side of the push plate are provided with scrapers.

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