Bulldozing plate and bulldozer

Abstract

The bulldozing plate comprises a bulldozing plate body and a soil touching curved surface arranged at the front end of the bulldozing plate body, side wings are hinged to the two sides of the bulldozing plate body, a driving mechanism used for driving the two side wings to be switched between a U-shaped shovel state and a V-shaped shovel state is arranged on the bulldozing plate body, and when the U-shaped shovel state is in the V-shaped shovel state, the V-shaped shovel state is in the V-shaped shovel state. The two side wings are oppositely arranged and form a U-shaped structure together with the soil touching curved surface, and when the V-shaped shovel is in a state, the two side wings abut against each other to form a V-shaped structure. According to the bulldozing plate, the bulldozing plate can be flexibly switched between the U-shaped shovel state and the V-shaped shovel state through the driving mechanism, so that the bulldozing plate is suitable for large-area bulldozing operation or road cleaning operation, and the operation adaptability and efficiency of the bulldozing plate are improved.

Description

Technical Field

[0001] The invention relates to the field of bulldozers, and in particular to a bulldozer and a bulldozer. Background Art

[0002] Bulldozers are widely used in various fields such as urban construction and mining. As of the end of 2020, the number of bulldozers in my country is about 100,000, and the annual fuel consumption is no less than 3 million tons. Reducing the working resistance of bulldozers is of great significance for energy conservation and emission reduction. The bulldozer blade is the direct working part of the bulldozer, and the power consumed during operation accounts for about 40% of the whole machine. A reasonable bulldozer blade structure can improve the working efficiency of the bulldozer and reduce power consumption. The traditional bulldozer blade has a fixed volume and cannot take into account a variety of working conditions, such as road clearing and earthwork transfer. Summary of the invention

[0003] In view of the defects of the prior art, the present invention provides a bulldozer and a bulldozer.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a bulldozer blade, including a bulldozer blade body and a soil-contacting curved surface arranged at the front end of the bulldozer blade body, side wings are hinged on both sides of the bulldozer blade body, and a driving mechanism is provided on the bulldozer blade body for driving the two side wings to switch between a U-shaped shovel state and a V-shaped shovel state. In the U-shaped shovel state, the two side wings are arranged opposite to each other and form a U-shaped structure together with the soil-contacting curved surface. In the V-shaped shovel state, the two side wings conflict with each other to form a V-shaped structure.

[0005] As a preferred solution, the side wings are hinged to the side faces of the bulldozer blade body through industrial hinges.

[0006] As a preferred solution, the side wing is a hollow structure, and auxiliary plates are slidably engaged on the upper and lower sides of the side wing. It also includes a rotating shaft that runs through the side wing and the two auxiliary plates. First sliders are rotatably provided at the upper and lower ends of the rotating shaft, and first sliding grooves are provided on the upper and lower end surfaces of the bulldozer blade body respectively corresponding to the first slider. A second slider is provided in the middle of the rotating shaft, and a second sliding groove that slidably cooperates with the second slider is provided on the inner side surface of the bulldozer blade body. Two cylindrical sub-branches are also passed through the rotating shaft, and third sliders are rotatably connected at both ends of the cylindrical sub-branches, and a third sliding groove that slidably cooperates with the third slider is provided on the auxiliary plate.

[0007] As a preferred solution, the first sliding block includes a sliding body that cooperates with the first sliding groove and a connecting plate connected to the sliding body. The end of the connecting plate away from the sliding body is provided with a mounting plate bent toward the soil-contacting curved surface, and the end of the rotating shaft is rotatably connected to the mounting plate.

[0008] As a preferred solution, a bearing seat is provided on the mounting plate, a bearing is rotatably provided inside the bearing seat, two bearings on the same side are coaxially arranged, and the rotating shaft is fixedly connected to the inner ring of the bearing.

[0009] As a preferred solution, the driving mechanism includes a hydraulic cylinder for driving the first slider to slide left and right in the first chute. A connecting rod connected to the first slider is provided at the end of the piston rod of the hydraulic cylinder. The piston rods of the two hydraulic cylinders located on the upper end face of the earth-pushing plate body are opposite and staggered, and the piston rods of the two hydraulic cylinders located on the lower end face of the earth-pushing plate body are opposite and staggered.

[0010] As a preferred solution, the soil-contact curved surface is obtained by horizontally stretching a soil-contact contour curve, and the soil-contact contour curve includes a lower contour curve and an upper contour curve connected end to end in sequence; The curve equation of the upper contour curve is: The curve equation of the lower contour curve 211 is:

[0011]

[0012] The present application also provides a bulldozer, including the above-mentioned earth-pushing plate.

[0013] The beneficial effects of the present application are as follows: 1. The present application can flexibly switch the earth-pushing plate between the U-shaped shovel state and the V-shaped shovel state through the driving mechanism. The U-shaped shovel state is suitable for large-area earth-pushing operations and can efficiently push the soil forward; the V-shaped shovel state is convenient for pushing the materials to both sides, thus facilitating road cleaning or breaking ground, and is suitable for scenarios where road cleaning or breaking ground is required, improving the operation adaptability and efficiency of the earth-pushing plate.

[0014] 2. The soil-contact curved surface is determined by a specific curve equation, and the optimized curved surface shape can effectively reduce the earth-pushing resistance and improve the earth-pushing efficiency. At the same time, the design of structures such as the auxiliary plate further enhances the function of the earth-pushing plate, such as better guiding and arranging the soil during the earth-pushing process.

[0015] 3. The side wings are hinged to the earth-pushing plate body through industrial hinges. Combining the cooperation of the slider and the chute makes the rotation and sliding of the side wings smoother and more reliable. The hydraulic cylinder as the driving mechanism can provide sufficient power to ensure the smoothness and stability of the state switching. Description of the Drawings

[0017] Figure 1 is a structural schematic diagram of the present application.

[0018] Figure 2 is Figure 1 a partial enlarged view of part A in

[0019] Figure 3 is a structural schematic diagram of the rotating shaft and the first slider of the present application.

[0020] Figure 4 is a schematic diagram of the side wings of the present application in the V-shaped shovel state.

[0021] Figure 5 This is a schematic structural diagram of the rotating shaft and the cylindrical auxiliary support of the present application.

[0022] Figure 6 This is a schematic structural diagram of the rotating shaft and the auxiliary plate of the present application.

[0023] Figure 7 This is a schematic structural diagram of the first chute of the present application.

[0024] Figure 8 This is a schematic diagram of the soil-contact profile curve of the soil-contact curved surface of the present application.

[0025] Reference numerals: 1, bulldozing plate body; 11, first chute; 2, soil-contact curved surface; 21, soil-contact profile curve; 211, lower profile curve; 212, upper profile curve; 3, side wing; 31, industrial hinge; 32, second chute; 4, auxiliary plate; 5, hydraulic cylinder; 6, rotating shaft; 61, second slider; 7, first slider; 71, sliding body; 72, connecting plate; 73, mounting plate; 8, bearing seat; 9, cylindrical auxiliary support; 91, third slider. Detailed implementation manners

[0027] The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

[0028] Please refer to Figures 1-8 As shown, an embodiment of the present application provides a bulldozing plate, which includes a bulldozing plate body 1 and a soil-contact curved surface 2 provided at the front end of the bulldozing plate body 1. Side wings 3 are hinged on both sides of the bulldozing plate body 1, and a driving mechanism for driving the two side wings 3 to switch between a U-shaped shovel state and a V-shaped shovel state is provided on the bulldozing plate body 1. In the U-shaped shovel state, the two side wings 3 are arranged oppositely and jointly form a U-shaped structure with the soil-contact curved surface 2. In the V-shaped shovel state, the two side wings 3 are in contact with each other to form a V-shaped structure.

[0029] Among them, in the U-shaped shovel state, the U-shaped opening faces away from the bulldozing plate body 1, and in the V-shaped shovel state, the V-shaped tip faces away from the bulldozing plate body 1.

[0030] The flank 3 is hinged to the side of the bulldozer blade body 1 through an industrial hinge 31. The flank 3 is of a hollow structure. Auxiliary plates 4 are slidably fitted to the upper and lower sides of the flank 3 respectively. A rotating shaft 6 passing through the flank 3 and the two auxiliary plates 4 is further included. First sliders 7 are rotatably provided at the upper and lower ends of the rotating shaft 6 respectively. First sliding grooves 11 corresponding to the first sliders 7 are provided on the upper and lower end faces of the bulldozer blade body 1 respectively. A second slider 61 is provided in the middle of the rotating shaft 6. A second sliding groove 32 slidably engaged with the second slider 61 is provided on the inner side face of the bulldozer blade body 1. Two cylindrical sub-branches 9 are also penetrated through the rotating shaft 6. Third sliders 91 are rotatably connected to both ends of the cylindrical sub-branches 9 respectively. Third sliding grooves slidably engaged with the third sliders 91 are provided on the auxiliary plates 4. The auxiliary plates 4 are of a U-shaped structure and include a middle plate and side plates located on both sides of the middle plate. The two third sliding grooves are respectively provided on the upper end faces of the two side plates.

[0031] Specifically, the first slider 7 includes a sliding body 71 fitted with the first sliding groove 11 and a connecting plate 72 connected to the sliding body 71. An installation plate 73 bent towards the soil-contacting curved surface 2 is provided at the end of the connecting plate 72 far from the sliding body 71. The sliding body 71, the connecting plate 72 and the installation plate 73 are integrally formed. The included angle between the connecting plate 72 and the installation plate 73 is an acute angle. The end of the rotating shaft 6 is rotatably connected to the installation plate 73. A bearing seat 8 is provided on the installation plate 73. A bearing is rotatably provided in the bearing seat 8. The two bearings on the same side are coaxially arranged. The rotating shaft 6 is fixedly connected to the inner ring of the bearing. It should be noted that the parts not detailed in this application are all prior arts.

[0032] In addition, the driving mechanism includes a hydraulic cylinder 5 for driving the first slider 7 to slide left and right in the first sliding groove 11. A connecting rod connected to the first slider 7 is provided at the end of the piston rod of the hydraulic cylinder 5. The piston rods of the two hydraulic cylinders 5 located on the upper end face of the bulldozer blade body 1 are opposite and staggered. The piston rods of the two hydraulic cylinders 5 located on the lower end face of the bulldozer blade body 1 are opposite and staggered.

[0033] Two first mounting plates are oppositely provided on the upper end face of the bulldozer blade body 1. The two hydraulic cylinders 5 on the upper end face of the bulldozer blade body 1 are respectively hinged to the two first mounting plates. Two second mounting plates are oppositely provided on the lower end face of the bulldozer blade body 1. The two hydraulic cylinders 5 on the lower end face of the bulldozer blade body 1 are respectively hinged to the two second mounting plates.

[0034] The hydraulic cylinder 5 drives the first slider 7 to slide left and right in the first sliding groove 11, thereby driving the rotating shaft 6, the second slider 61, the cylindrical sub-branches 9 and the third sliders 91 to move, realizing the rotation of the flank 3 and the sliding of the auxiliary plates 4, and completing the switching between the U-shaped shovel state and the V-shaped shovel state. During the process of the two flanks 4 being unfolded, the auxiliary plates 4 will extend out from the inside of the flanks; during the process of the two flanks 4 being closed, the auxiliary plates 4 will retract into the inside of the flanks 4.

[0035] Of course, the present application is not limited to the implementations described above. Several other implementations based on the design concepts of the present application are also provided below.

[0036] For example, in other embodiments, different from the above-described embodiments, the bulldozer blade body 1 further includes an upper end face, a lower end face, a rear end face, a left end face, and a right end face, and the soil contact curved surface 2 is located in front of the rear end face. The soil contact curved surface 2 is obtained by horizontally stretching the soil contact contour curve 21, and the soil contact contour curve 21 includes a lower contour curve 211 and an upper contour curve 212 connected in sequence end to end; The curve equation of the upper contour curve 212 is: The curve equation of the lower contour curve 211 is:

[0037] When the values ​​of x1 and x2 are both -39.8371, combined Figure 8 As shown, the corresponding point is the intersection point B of the lower contour curve 211 and the upper contour curve 212 .

[0038] When the values ​​of x2 and Y2 are both 0, the corresponding point is located at the bottom of the soil-contacting surface 2. When the value of x1 is -31.8835 and the value of Y1 is 150, the corresponding point is located at the top of the soil-contacting surface 2. Figure 8 The curve shown in the figure can be stretched transversely along a straight line to obtain the soil-contacting curved surface 2 of the bulldozer blade body 1, and the transverse stretching distance is the width of the bulldozer blade body.

[0039] During the bulldozing process, the soil contacting curved surface 2 contacts the soil and can effectively push the soil forward due to its optimized curved shape.

[0040] When the present application is used, the U-shaped shovel state is switched: when the U-shaped shovel state is required, the piston rod of the hydraulic cylinder 5 is extended, driving the first slide block 7 to slide to both sides in the first slide groove 11, and the two side wings 3 are rotated through the linkage of the rotating shaft 6 and other components until the two side wings 3 are arranged opposite to each other and form a U-shaped structure together with the soil contacting curved surface 2. At this time, the auxiliary plate 4 extends out of the side wing 3 to enhance the bulldozing effect.

[0041] V-shaped shovel state switching: When the V-shaped shovel state is required, the piston rod of the hydraulic cylinder 5 is retracted, driving the first slider 7 to slide toward the middle in the first slide groove 11, and through the linkage of the rotating shaft 6 and other components, the two side wings 3 are rotated and finally collided to form a V-shaped structure. The auxiliary plate 4 slides into the side wing 3 to meet the operation requirements of the V-shaped shovel state.

[0042] In the U-shaped shovel state, it can be used for bulldozing over a large area; in the V-shaped shovel state, it can be used for road clearing, thus being suitable for different working conditions.

[0043] When the earthwork is in two states on the flank 3, it will move to both sides of the bulldozer and in the advancing direction of the bulldozer respectively. When the flank 3 is closed, it forms a V-shaped structure to reduce resistance; when the flank 3 is unfolded, the volume of the blade is significantly increased to improve the working efficiency of the bulldozer.

[0044] The embodiment of the present application also provides a bulldozer, including the above-mentioned blade.

[0045] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A bulldozer blade, characterized in that, The bulldozer comprises a bulldozer blade body (1) and a soil-contacting curved surface (2) arranged at the front end of the bulldozer blade body (1); side wings (3) are hingedly provided on both sides of the bulldozer blade body (1); a driving mechanism is provided on the bulldozer blade body (1) for driving the two side wings (3) to switch between a U-shaped shovel state and a V-shaped shovel state; in the U-shaped shovel state, the two side wings (3) are arranged opposite to each other and form a U-shaped structure together with the soil-contacting curved surface (2); in the V-shaped shovel state, the two side wings (3) contact each other to form a V-shaped structure.

2. The bulldozer blade according to claim 1, characterized in that, The side wing (3) is hinged to the side of the bulldozer blade body (1) through an industrial hinge (31).

3. The dozer blade according to claim 1, wherein, The side wing (3) is a hollow structure, and the upper and lower sides of the side wing (3) are respectively slidably engaged with auxiliary plates (4), and also include a rotating shaft (6) that passes through the side wing (3) and the two auxiliary plates (4), and the upper and lower ends of the rotating shaft (6) are respectively rotatably provided with first sliders (7), and the upper and lower end surfaces of the bulldozer blade body (1) are respectively provided with first slide grooves (11) corresponding to the first slider (7), and the middle part of the rotating shaft (6) is provided with a second slider (61), and the inner side surface of the bulldozer blade body (1) is provided with a second slide groove (32) that slidably cooperates with the second slider (61), and two cylindrical auxiliary branches (9) are also penetrated on the rotating shaft (6), and the two ends of the cylindrical auxiliary branches (9) are respectively rotatably connected with third sliders (91), and the auxiliary plate (4) is provided with a third slide groove that slidably cooperates with the third slider (91).

4. The bulldozing plate according to claim 3, characterized in that, The first sliding block (7) comprises a sliding body (71) matched with the first sliding groove (11) and a connecting plate (72) connected to the sliding body (71); an end of the connecting plate (72) away from the sliding body (71) is provided with a mounting plate (73) bent toward the soil-contacting curved surface (2); and an end of the rotating shaft (6) is rotatably connected to the mounting plate (73).

5. The bulldozing plate according to claim 4, wherein The mounting plate (73) is provided with a bearing seat (8), a bearing is rotatably arranged inside the bearing seat (8), two bearings on the same side are coaxially arranged, and the rotating shaft (6) is fixedly connected to the inner ring of the bearing.

6. The dozer blade according to claim 1, characterized in that, The driving mechanism comprises a hydraulic cylinder (5) for driving the first sliding block (7) to slide left and right in the first sliding groove (11); the end of the piston rod of the hydraulic cylinder (5) is provided with a connecting rod connected to the first sliding block (7); the piston rods of the two hydraulic cylinders (5) located on the upper end surface of the bulldozer blade body (1) are arranged oppositely and staggered, and the piston rods of the two hydraulic cylinders (5) located on the lower end surface of the bulldozer blade body (1) are arranged oppositely and staggered.

7. The dozer blade according to claim 1, wherein, The soil-contacting curved surface (2) is obtained by transversely stretching a soil-contacting contour curve (21), wherein the soil-contacting contour curve (21) comprises a lower contour curve (211) and an upper contour curve (212) which are connected end to end in sequence; The curve equation of the upper contour curve (212) is: The curve equation of the lower contour curve (211) is:

8. A bulldozer, characterized in that, The invention comprises the bulldozer blade according to any one of claims 1 to 7.

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