Blade device and working machine

Abstract

The utility model relates to the technical field of mechanical equipment, discloses a dozer blade device and an operation machine, and improves the structural strength of the dozer blade device. The bulldozing blade comprises a bulldozing blade body with a back surface; the two first back plates are fixedly connected with the back face and arranged in the second direction in a spaced mode. The middle part of the first back plate is arched so as to form a first cavity with the dozer blade body; the two supporting arms extend in the first direction and are arranged in the second direction in a spaced mode. The two supporting arms are fixedly connected with the back face and located between the two first back plates. The second back plate is fixedly connected between the two supporting arms and is fixedly connected with the back surface; the middle part of the second back plate is arched so as to form a second cavity with the supporting arm and the dozer blade body; wherein the first direction intersects with the second direction.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, concretely relates to a bulldozing shovel device and operation machine. BACKGROUND

[0002] In the field of engineering machinery, excavator is indispensable construction machinery, and appropriate auxiliary tool for excavator can greatly improve construction efficiency. Among them, the bulldozing shovel device is added in front of the excavator, which can not only play the role of bulldozing and leveling, but also can be used for supporting to improve the stability of the excavator during operation, and is one of the most used auxiliary tools. However, the current bulldozing shovel device has weak structural strength, can only be used for auxiliary support, and cannot rely on the bulldozing shovel device to support the excavator. SUMMARY

[0003] Therefore, the utility model provides a bulldozing shovel device and operation machine to solve the problem of weak structural strength of the current bulldozing shovel device.

[0004] In the first aspect, the utility model provides a bulldozing shovel device, which comprises a bulldozing shovel body with a back surface; the back surface is the surface of one side of the bulldozing shovel body along a first direction; two first back plates are fixedly connected with the back surface and are spaced apart along a second direction; the middle part of the first back plate is arched away from the back surface to form a first cavity with the bulldozing shovel body; two support arms extend along the first direction and are spaced apart along the second direction; the two support arms are fixedly connected with the back surface and are located between the two first back plates; a second back plate is fixedly connected between the two support arms and is fixedly connected with the back surface; the middle part of the second back plate is arched away from the back surface to form a second cavity with the support arm and the bulldozing shovel body; wherein the first direction intersects the second direction.

[0005] In an optional embodiment, the bulldozing shovel device further comprises two first reinforcing plates, the two first reinforcing plates are located in the two first cavities formed between the two first back plates and the bulldozing shovel body, and the first reinforcing plate is fixedly connected between the first back plate and the back surface; and / or the bulldozing shovel device further comprises a second reinforcing plate, the second reinforcing plate is located in the second cavity; the second reinforcing plate is fixedly connected with the support arm, the second back plate and the back surface.

[0006] In an optional embodiment, the support arm comprises an outer side plate and an inner side plate connected with each other, and the outer side plate and the inner side plate are spaced apart along the second direction; the two inner side plates of the two support arms are located between the two outer side plates of the two support arms; in each support arm, at least one of the outer side plate and the inner side plate is fixedly connected with the back surface.

[0007] In an alternative embodiment, the bulldozing blade body has a front surface opposite to the back surface in the first direction; the outer side plate has a first end surface facing the bulldozing blade body, the first end surface is attached to the back surface; in the first direction, the first end surface has a first protrusion protruding therefrom, the first protrusion penetrates the front surface and the back surface, and at least part of the structure of the first protrusion protrudes from the front surface; the protruding part of the first protrusion has a traction hole; and / or, the outer side plate is integrally formed.

[0008] In an alternative embodiment, the inner side plate penetrates the second back plate in the first direction, and at least part of the structure of the inner side plate extends into the second cavity; the inner side plate has a second end surface facing the bulldozing blade body, the second end surface is attached to the back surface; and / or, the inner side plate is integrally formed.

[0009] In an alternative embodiment, the bulldozing blade device further comprises at least one third reinforcing plate, the third reinforcing plate is fixedly connected to the side of the second back plate away from the bulldozing blade body, and is fixedly connected between the two inner side plates; the third reinforcing plate is provided with a recess, and the recess is provided with a through hole; and / or, the inner side plate has a second flat portion, at least part of the structure of the second flat portion is located on the side of the second back plate away from the bulldozing blade body; the side of the third reinforcing plate close to the inner side plate is provided with a first boss, and the first boss is fixedly connected to the second flat portion.

[0010] In an alternative embodiment, the support arm further comprises a top plate and a bottom plate, both of which are fixedly connected between the outer side plate and the inner side plate, and the top plate, the bottom plate, the outer side plate and the inner side plate jointly enclose a cavity of the support arm; the side of the top plate close to the inner side plate is provided with a second boss, and the second boss is fixedly connected to the second flat portion.

[0011] In an alternative embodiment, the support arm has a front section, a middle section and a rear section connected in sequence in the first direction, the front section is fixedly connected to the back surface, and the middle section is provided with a first hinge hole; the bulldozing blade device further comprises a support beam and at least two reinforcing lugs, the support beam penetrates the two middle sections of the two support arms in the second direction, and is fixedly connected to the two middle sections; the first hinge hole is located above the support beam; the at least two reinforcing lugs are respectively fixedly connected to at least one side of the two middle sections in the second direction, at least part of the structure of the reinforcing lug extends around the first hinge hole, and at least part of the structure of the reinforcing lug is fixedly connected to the support beam; and / or, an arc-shaped transition section is arranged between the front section and the middle section.

[0012] In an alternative embodiment, the bulldozing blade device further comprises two groups of reinforcing rib plates, the two groups of reinforcing rib plates are respectively located on the sides of the two support arms away from each other; each group of reinforcing rib plates is fixedly connected between the support arm and the first back plate.

[0013] In an alternative embodiment, the bulldozing blade device further comprises two circular arc plates, each of which is connected with the two groups of reinforcing rib plates; each group of reinforcing rib plates comprises upper and lower reinforcing rib plates arranged at intervals, and the circular arc plate is fixedly connected between the upper and lower reinforcing rib plates.

[0014] In a second aspect, the utility model also provides a kind of working machine, comprising: frame;Like the bulldozing blade device described above, the end of support arm away from bulldozing blade body is rotatably connected with frame.

[0015] By the technical scheme of the utility model, the back support plate of bulldozing blade body is divided into three sections, that is, two first back plates and second back plate, the first cavity is formed between the two first back plates and bulldozing blade body, and the second cavity is formed between the second back plate and bulldozing blade body. The first cavity and the second cavity can improve the lateral force resistance of the bulldozing blade device, thereby improving the structural strength of the bulldozing blade device. The bulldozing blade device and the working machine improve the structural strength of the bulldozing blade device, thereby improving the stability and reliability of the bulldozing blade device. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the specific embodiment of the utility model or prior art, the drawings needed to be used in the specific embodiment or prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 It is a structural schematic view of a bulldozing blade device of the embodiment of the utility model;

[0018] Figure 2 It is a structural schematic view of a bulldozing blade assembly of the embodiment of the utility model;

[0019] Figure 3 It is a structural schematic view of a connecting frame assembly in the first perspective of the embodiment of the utility model;

[0020] Figure 4 It is a structural schematic view of a connecting frame assembly in the second perspective of the embodiment of the utility model;

[0021] Figure 5 It is Figure 4 It is a local enlarged view at A;

[0022] Figure 6 It is a structural schematic view of an outer side plate of the embodiment of the utility model;

[0023] Figure 7 It is a structural schematic view of an inner side plate of the embodiment of the utility model;

[0024] Figure 8 Figure 1 is a perspective view of a bulldozing device according to an embodiment of the present application.

[0025] Explanation of reference signs:

[0026] 1, bulldozing device body; 1a, front surface; 1b, back surface; 11, bulldozing plate; 111, perforation; 12, blade; 13, side plate; 2, first back plate; 20, first cavity; 21, first arching portion; 22, first edge portion; 23, second edge portion; 3, first reinforcing plate; 4, support arm; 4a, front section; 4b, middle section; 4c, rear section; 41, outer side plate; 411, first end surface; 4111, first section; 4112, second section; 412, first protrusion; 413, traction hole; 414, first arc-shaped transition section; 415, second protrusion; 416, first hole; 417, second hole; 418, third hole; 42, inner side plate; 421, second end surface; 4211, third section; 4212, fourth section; 422, arc-shaped recess; 423, first flat portion; 424, second flat portion; 425, second arc-shaped transition section; 426, third protrusion; 427, fourth hole; 428, fifth hole; 429, sixth hole; 43, top plate; 431, second protrusion; 44, bottom plate; 5, second back plate; 50, second cavity; 51, second arching portion; 52, third edge portion; 53, fourth edge portion; 6, second reinforcing plate; 7, third reinforcing plate; 71, first plate portion; 72, second plate portion; 73, recessed portion; 74, through hole; 75, first protrusion; 8, support beam; 81, beam body; 82, cover plate; 91, reinforcing lug plate; 92, reinforcing rib plate; 93, circular arc plate; 94, reinforcing disc; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] The embodiments of the present application will be described below in combination with Figures 1 to 8 .

[0029] According to the embodiments of the present application, on the one hand, a bulldozing device is provided, as shown in Figures 1-4 , the bulldozing device comprises a bulldozing device assembly and a connecting frame assembly. Wherein, Figure 1A schematic view of the overall structure of the bulldozing blade device is shown, Figure 2 A schematic view of the structure of the bulldozing blade assembly is shown, Figure 3 and Figure 4 schematic views of the structure of the connecting frame assembly are shown.

[0030] Specifically, in some embodiments, as shown in Figure 1 and Figure 2 , the bulldozing blade assembly includes a bulldozing blade body 1, a first back plate 2, and a first reinforcing plate 3.

[0031] Further, the bulldozing blade body 1 has a front face 1a and a back face 1b oppositely arranged along a first direction X. That is, the front face 1a and the back face 1b are surfaces on opposite sides of the bulldozing blade body 1 along the first direction X, respectively.

[0032] Further, the first back plate 2 is provided with two, both of which are fixedly connected with the bulldozing blade body 1 and are spaced apart along a second direction Y at two ends of the bulldozing blade body 1. Among them, the middle part of the first back plate 2 is arched away from the back face 1b to form a first cavity 20 with the bulldozing blade body 1. Understandably, the two first back plates 2 form a first cavity 20 with the bulldozing blade body 1, respectively, that is, the first cavity 20 is provided with two.

[0033] Further, the first reinforcing plate 3 is provided with two, both of which are located in the two first cavities 20 formed between the two first back plates 2 and the bulldozing blade body 1, and the first reinforcing plate 3 is fixedly connected between the first back plate 2 and the back face 1b.

[0034] Specifically, in some embodiments, as shown in Figure 1 , Figure 3 and Figure 4 , the connecting frame assembly includes a support arm 4, a second back plate 5, and a second reinforcing plate 6.

[0035] Further, the support arm 4 is provided with two, both of which extend along the first direction X and are spaced apart along the second direction Y. Both of the two support arms 4 are fixedly connected with the back face 1b of the bulldozing blade body 1 and are located between the two first back plates 2.

[0036] Further, the second back plate 5 is fixedly connected between the two support arms 4 and is fixedly connected with the back face 1b of the bulldozing blade body 1. Among them, the middle part of the second back plate 5 is arched away from the back face 1b to form a second cavity 50 with the support arm 4 and the bulldozing blade body 1.

[0037] Further, the second reinforcing plate 6 is located in the second cavity 50; the second reinforcing plate 6 is fixedly connected with the support arm 4, the second back plate 5, and the back face 1b.

[0038] The first direction X intersects the second direction Y, the first direction X is the direction from the front face 1a to the back face 1b of the dozer blade body 1, and the second direction Y is the length direction of the dozer blade body 1. In some cases, the first direction X and the second direction Y are perpendicular to each other.

[0039] In the above-mentioned embodiments, one of which, the back support plate of the dozer blade body 1 is divided into three sections, that is, two first back plates 2 and a second back plate 5, the two first back plates 2 form a first cavity 20 with the dozer blade body 1, and the second back plate 5 forms a second cavity 50 with the dozer blade body 1. The first cavity 20 and the second cavity 50 can improve the lateral force resistance of the dozer blade device, thereby improving the structural strength of the dozer blade device. Secondly, the first reinforcing plate 3 is located in the first cavity 20 and is fixedly connected between the first back plate 2 and the dozer blade body 1; the second reinforcing plate 6 is located in the second cavity 50 and is fixedly connected between the second back plate 5 and the dozer blade body 1. The arrangement of the first reinforcing plate 3 and the second reinforcing plate 6 further improves the structural strength of the dozer blade device. Thirdly, the second reinforcing plate 6 is fixedly connected with the support arm 4, the second back plate 5, and the back face 1b, thereby improving the connection strength between the support arm 4, the dozer blade body 1, and the second back plate 5, and further improving the structural strength of the dozer blade device. The dozer blade device of the utility model improves the structural strength of the dozer blade device, thereby improving the stability and reliability of the dozer blade device.

[0040] Further, in some embodiments, the dozer blade body 1 comprises a dozer plate 11, a blade 12, and side plates 13. The dozer plate 11 and the blade 12 both extend along the second direction Y. The blade 12 is fixedly connected to the bottom of the dozer plate 11, and the bottom of the blade 12 protrudes from the bottom of the dozer plate 11. The side plates 13 are provided in two, and the two side plates 13 are respectively located on both sides of the dozer plate 11 and the blade 12 along the second direction Y. The side plates 13 are fixedly connected with the dozer plate 11 and the blade 12.

[0041] In some embodiments, the two ends of the blade 12 along the second direction Y respectively protrude from the two side plates 13.

[0042] Wherein, along the first direction X, the surface of one side of the dozer plate 11 and the blade 12 together form the above-mentioned front face 1a, and the surface of the other side of the dozer plate 11 and the blade 12 together form the above-mentioned back face 1b. Along the first direction X, the two ends of the side plate 13 respectively protrude from the above-mentioned front face 1a and back face 1b.

[0043] Further, in some embodiments, on the back face 1b of the dozer blade body 1, the top of the first back plate 2 is fixedly connected with the dozer plate 11, the bottom of the first back plate 2 is fixedly connected with the blade 12, and the two sides of the first back plate 2 along the second direction Y are fixedly connected with the side plates 13 and the support arm 4 respectively.

[0044] Specifically, the first back plate 2 comprises a first edge portion 22, a first arch portion 21 and a second edge portion 23 connected in sequence from top to bottom, the first edge portion 22 and the second edge portion 23 are arranged at an angle with the first arch portion 21, so that the first arch portion 21 arches in a direction away from the back surface 1b. The first edge portion 22, the first arch portion 21 and the second edge portion 23 together with the back surface 1b of the blade body 1, the side plate 13 and the support arm 4 enclose a closed first cavity 20. Among them, the first edge portion 22 is fixedly connected with the dozer blade 11, the second edge portion 23 is fixedly connected with the blade edge 12, and the two sides of the first arch portion 21, the first edge portion 22 and the second edge portion 23 are fixedly connected with the side plate 13 and the support arm 4 along the second direction Y.

[0045] Further, in some embodiments, the first reinforcing plate 3 is configured as a strip-shaped plate structure, the first reinforcing plate 3 is located in the above-mentioned first cavity 20 and extends along the second direction Y. Along the first direction X, the two sides of the first reinforcing plate 3 are fixedly connected with the first arch portion 21 and the back surface 1b respectively, specifically fixedly connected with the first arch portion 21 and the dozer blade 11 respectively. In some embodiments, along the second direction Y, one end of the first reinforcing plate 3 can be fixedly connected with the side plate 13, and the other end can be fixedly connected with the support arm 4.

[0046] Further, in some embodiments, as shown in Figure 1 , Figure 3 and Figure 4 , the support arm 4 comprises an outer side plate 41 and an inner side plate 42 connected with each other, and the outer side plate 41 and the inner side plate 42 are arranged at intervals along the second direction Y. It can be understood that the support arm 4 is provided with two, and the two support arms 4 each comprise an outer side plate 41 and an inner side plate 42. Among them, the two inner side plates 42 of the two support arms 4 are located between the two outer side plates 41 of the two support arms 4. In each support arm 4, at least one of the outer side plate 41 and the inner side plate 42 is fixedly connected with the back surface 1b.

[0047] Further, in some embodiments, the outer side plate 41 is fixedly connected with the back surface 1b. Specifically, the two outer side plates 41 are fixedly connected on both sides of the second back plate 5 along the second direction Y and are fixedly connected with the back surface 1b.

[0048] In other embodiments, the inner side plate 42 is fixedly connected with the back surface 1b. Specifically, the two inner side plates 42 penetrate the second back plate 5 along the first direction X, and at least part of the structure extends into the second cavity 50 and is fixedly connected with the back surface 1b.

[0049] In some embodiments, the two outer side plates 41 are fixedly connected to the two sides of the second back plate 5 along the second direction Y, and are fixedly connected to the back surface 1b. The two inner side plates 42 penetrate through the second back plate 5 along the first direction X, and at least part of the structure extends into the second cavity 50 and is fixedly connected to the back surface 1b. In addition, the second reinforcing plate 6 is fixedly connected between the two inner side plates 42. In this embodiment, the two outer side plates 41, the second back plate 5 and the push shovel body 1 form the second cavity 50 together, the outer side plate 41 of the support arm 4 can be attached to and connected to the back surface 1b of the push shovel body 1, the second back plate 5 extends into the second cavity 50 and can be attached to and connected to the back surface 1b of the push shovel body 1, and the second reinforcing plate 6 is fixedly connected to the two inner side plates 42, the second back plate 5 and the back surface 1b of the push shovel body 1, thereby improving the connection strength between the push shovel assembly and the connecting frame assembly, and further improving the overall strength and structural strength of the push shovel device, and ensuring the stability and reliability of the push shovel device.

[0050] It can be understood that in some cases, the second reinforcing plate 6 can also be directly fixedly connected to the inner wall of the second back plate 5 facing the back surface 1b.

[0051] Specifically, the second back plate 5 includes a third edge portion 52, a second arch portion 51 and a fourth edge portion 53 connected in sequence from top to bottom, and the third edge portion 52 and the fourth edge portion 53 are arranged at an angle with the second arch portion 51, so that the second arch portion 51 arches away from the back surface 1b. The third edge portion 52, the second arch portion 51 and the fourth edge portion 53 together with the back surface 1b of the push shovel body 1 and the two outer side plates 41 form a closed second cavity 50. Among them, the third edge portion 52 is fixedly connected with the push plate 11, the fourth edge portion 53 is fixedly connected with the blade 12, and along the second direction Y, the two sides of the second arch portion 51, the third edge portion 52 and the fourth edge portion 53 are fixedly connected with the two outer side plates 41 respectively.

[0052] In some embodiments, one side of the above-mentioned first back plate 2 and the first reinforcing plate 3 along the second direction Y is fixedly connected with the support arm 4, specifically with the outer side plate 41 of the support arm 4.

[0053] Further, in some embodiments, as Figure 3 and Figure 6As shown, the outer side plate 41 has a first end face 411 facing the first end face of the dozing blade body 1, and the first end face 411 is attached to and connected with the back face 1b. In the first direction X, the first end face 411 is provided with a first protrusion 412 protruding through the front face 1a and the back face 1b, and at least part of the structure of the first protrusion 412 protrudes from the front face 1a. At least part of the structure of the first protrusion 412 protruding from the front face 1a is provided with a traction hole 413. In this embodiment, the first end face 411 of the outer side plate 41 is attached to and connected with the back face 1b, which ensures the connection strength between the support arm 4 and the dozing blade body 1; the first protrusion 412 leads to the traction hole 413 on the front face 1a of the dozing blade body 1, and the traction operation can be realized through the first protrusion 412 and the traction hole 413, which increases the use of the applied working machine.

[0054] Specifically, as shown in the drawings, Figure 2 As shown, the dozing plate 11 is provided with a through hole 111 penetrating in the first direction X, and the first protrusion 412 penetrates through the front face 1a and the back face 1b through the through hole 111. It can be understood that the shape and structure of the through hole 111 depend on the shape and structure of the first protrusion 412, and the first protrusion 412 can pass through the through hole 111. Exemplarily, the through hole 111 is configured as a long slot, and is curved, and the first protrusion 412 passes through the long slot and is fixedly connected with the hole wall of the long slot.

[0055] The shape and structure of the first end face 411 are not limited in the utility model, as long as they can match the shape and structure of the back face 1b to realize the function of being attached to and connected with the back face 1b. Exemplarily, the back face 1b can be an outward convex curved surface structure, and correspondingly, the first end face 411 can be an inward concave curved surface structure to be attached to the back face 1b to ensure the connection strength.

[0056] Exemplarily, the first end face 411 includes a first segment 4111 and a second segment 4112 arranged at intervals, the first segment 4111 and the second segment 4112 are respectively connected to the two ends of the first protrusion 412, and the first segment 4111 and the second segment 4112 are both attached to and fixedly connected with the back face 1b. Exemplarily, the first segment 4111 is located above the second segment 4112, and on the back face 1b of the dozing blade body 1, the first segment 4111 can be attached to and connected with the surface of the dozing plate 11, and the second segment 4112 can be partially attached to and connected with the surface of the dozing plate 11 and partially attached to and connected with the surface of the blade edge 12. The surface of the dozing plate 11 is a curved surface, and the surface of the blade edge 12 is an inclined surface, and correspondingly, the part of the first segment 4111 and the second segment 4112 attached to the dozing plate 11 is also a curved surface, and the part of the second segment 4112 attached to the blade edge 12 is an inclined surface.

[0057] Exemplarily, the middle portion of the outer side plate 41 further comprises a second protrusion 415 located above the middle portion of the outer side plate 41. A first arc-shaped transition section 414 is arranged between the first end face 411 and the second protrusion 415, specifically between the first section 4111 and the second protrusion 415. The first arc-shaped transition section 414 is arranged to achieve smooth transition connection between the first end face 411 and the second protrusion 415, thereby avoiding stress concentration and other problems. Exemplarily, the outer side plate 41 is further provided with a first hole 416, a second hole 417 and a third hole 418 arranged in the second direction Y. The first hole 416 and the second hole 417 are arranged in the middle portion of the outer side plate 41. The first hole 416 is arranged on the second protrusion 415 and located above the second hole 417. In the first direction X, the third hole 418 is arranged at the end of the outer side plate 41 away from the first end face 411.

[0058] Exemplarily, the outer side plate 41 is integrally formed. Compared with a segmented structure, the integrally formed outer side plate 41 can avoid welding defects and stress concentration, and can better transmit the stress of the dozer blade body 1 to the connecting frame assembly.

[0059] Further, in some embodiments, as shown in Figs. Figure 3 , Figure 7 and Figure 8 , the inner side plate 42 has a second end face 421 facing the dozer blade body 1, and the second end face 421 is attached to and connected with the back face 1b.

[0060] In some embodiments, the middle portion of the second end face 421 is provided with an arc-shaped recess 422 recessed away from the back face 1b. It can be understood that at least part of the structure of the inner side plate 42 extending into the second cavity 50 forms the second end face 421, and the second end face 421 is located in the second cavity 50 to achieve fixed connection with the back face 1b. In this embodiment, the second end face 421 of the inner side plate 42 is attached to and connected with the back face 1b, further ensuring the connection strength between the support arm 4 and the dozer blade body 1; the middle portion of the second end face 421 is provided with the arc-shaped recess 422, which can reduce stress concentration.

[0061] Exemplarily, the arc-shaped recess 422 can be substantially semicircular.

[0062] In some embodiments not shown in the figures, the profile of the second end face 421 is adapted to the back face 1b, and is completely attached to and connected with the back face 1b.

[0063] The shape structure of the second end surface 421 is not specifically limited, as long as it can be matched with the shape structure of the back surface 1b to realize the function of being attached to and connected with the back surface 1b. Exemplarily, the back surface 1b can be in a convex curved surface structure, and correspondingly, the second end surface 421 can be in a concave curved surface structure to be attached to the back surface 1b to ensure the connection strength.

[0064] Exemplarily, the second end surface 421 includes a third segment 4211 and a fourth segment 4212 arranged at intervals, the third segment 4211 and the fourth segment 4212 are respectively connected to two ends of the arc-shaped recessed part 422, and the third segment 4211 and the fourth segment 4212 are both attached to and fixedly connected with the back surface 1b. In some embodiments, the third segment 4211 is located above the fourth segment 4212, on the back surface 1b of the bulldozer blade body 1, the first segment 4111 can be attached to and connected with the surface of the bulldozing plate 11, and the second segment 4112 can be attached to and connected with the surface of the blade edge 12. The surface of the bulldozing plate 11 is a curved surface, the surface of the blade edge 12 is an inclined surface, and correspondingly, the first segment 4111 is a curved surface and the second segment 4112 is an inclined surface.

[0065] Exemplarily, the middle part of the inner side plate 42 further includes a third convex part 426 located above the middle part of the inner side plate 42. A second arc-shaped transition segment 425 is arranged between the second end surface 421 and the third convex part 426, specifically between the third segment 4211 and the third convex part 426, the arrangement of the second arc-shaped transition segment 425 realizes smooth transition connection between the second end surface 421 and the third convex part 426, and avoids problems such as stress concentration. Exemplarily, the inner side plate 42 is further provided with a fourth hole 427, a fifth hole 428 and a sixth hole 429 arranged in the second direction Y, the fourth hole 427 and the fifth hole 428 are both arranged in the middle part of the inner side plate 42, the fourth hole 427 is arranged on the third convex part 426, and the fourth hole 427 is located above the fifth hole 428. Along the first direction X, the sixth hole 429 is arranged at one end of the inner side plate 42 away from the second end surface 421.

[0066] In some embodiments, the inner side plate 42 has a first flat part 423 located above the second end surface 421 and in the second cavity 50. The second reinforcing plate 6 is fixedly connected to the first flat part 423. The arrangement of the first flat part 423 facilitates the fixation of the second reinforcing plate 6, and realizes reliable connection between the second reinforcing plate 6 and the supporting arm 4, the second back plate 5 and the bulldozer blade body 1.

[0067] In some embodiments not shown in the figure, the inner side plate 42 does not have the above-mentioned first flat part 423, and the second reinforcing plate 6 can also penetrate the inner side plate 42 in the second direction Y and be fixedly connected with the inner wall of the second back plate 5 facing the back surface 1b.

[0068] In some embodiments, the inner side plate 42 further has a second flat portion 424, which is located above the second end surface 421, specifically above the first flat portion 423. The second flat portion 424 is at least partially located on the side of the second back plate 5 away from the bulldozing shovel body 1.

[0069] Exemplarily, the inner side plate 42 comprises the above-mentioned second end surface 421, the first flat portion 423, the second flat portion 424, the second arc-shaped transition section 425 and the third convex portion 426 connected in sequence, the first flat portion 423 is connected to one end of the third section 4211 away from the fourth section 4212, the second flat portion 424 is connected to one end of the first flat portion 423 away from the third section 4211, and the second arc-shaped transition section 425 is connected between the second flat portion 424 and the third convex portion 426. Among them, the second flat portion 424 is arranged at a position higher than that of the first flat portion 423, and the second arc-shaped transition section 425 is arranged at a position higher than that of the second flat portion 424.

[0070] Exemplarily, the above-mentioned inner side plate 42 is integrally formed, which can avoid problems such as welding defects and stress concentration compared with a segmented structure.

[0071] Further, in some embodiments, as shown in Figure 4 The bulldozing shovel device further comprises at least one third reinforcing plate 7, which is fixedly connected to the side of the second back plate 5 away from the bulldozing shovel body 1 and between the two inner side plates 42. The third reinforcing plate 7 is provided with a recessed portion 73, and the recessed portion 73 is provided with a through hole 74. On the one hand, the third reinforcing plate 7 plays a role of structural reinforcement, and on the other hand, when the bulldozing is too much, the soil and gravel and other materials will roll down from above the bulldozing shovel body 1 to the third reinforcing plate 7. The materials rolled down to the third reinforcing plate 7 can flow into the recessed portion 73 and fall into the ground through the through hole 74, preventing accumulation. In addition, water and other accumulated water can also be discharged through the through hole 74 of the recessed portion 73, avoiding corrosion of the bulldozing shovel device and improving the service life of the bulldozing shovel device.

[0072] Exemplarily, the third reinforcing plate 7 can be provided with one, or from the top to the bottom of the supporting arm 4, the third reinforcing plate 7 can be provided with two, three or more at intervals.

[0073] Exemplarily, the third reinforcing plate 7 is jointly spliced by a first plate portion 71 and a second plate portion 72, the first plate portion 71 and the second plate portion 72 have the same shape configuration, and the first plate portion 71 and the second plate portion 72 are arranged side by side along the second direction Y and are connected. At the connection of the first plate portion 71 and the second plate portion 72, the first plate portion 71 and the second plate portion 72 are both arranged downwardly inclined, so that the connection of the first plate portion 71 and the second plate portion 72 is concave downward, so as to form the above-mentioned recessed portion 73. Understandably, in this embodiment, the recessed portion 73 is located at the connection of the first plate portion 71 and the second plate portion 72, that is, at the middle of the third reinforcing plate 7. The above-mentioned through hole 74 is formed at the connection of the first plate portion 71 and the second plate portion 72, that is, at the middle of the third reinforcing plate 7. Exemplarily, the through hole 74 can be circular, semicircular, rectangular or other shapes.

[0074] Exemplarily, the recessed portion 73 can also be arranged at at least one end of the third reinforcing plate 7 along the second direction Y.

[0075] Exemplarily, the third reinforcing plate 7 can also be integrally formed.

[0076] In some embodiments, as shown in the drawings, Figure 5 The inner side plate 42 has a second flat portion 424, at least part of the structure of the second flat portion 424 is located on the side of the second back plate 5 away from the blade body 1. The side of the third reinforcing plate 7 close to the inner side plate 42 is provided with a first boss 75, and the first boss 75 is fixedly connected to the second flat portion 424. Exemplarily, the first boss 75 can be lapped onto the second flat portion 424 and be plug welded and ground flat, so that materials, water and the like can smoothly slide off from the through hole 74 of the recessed portion 73, preventing the accumulation of corners.

[0077] Further, in some embodiments, the support arm 4 further comprises a top plate 43 and a bottom plate 44, the top plate 43 and the bottom plate 44 are fixedly connected between the outer side plate 41 and the inner side plate 42, and the top plate 43, the bottom plate 44, the outer side plate 41 and the inner side plate 42 jointly enclose the support arm 4 having a cavity. The side of the top plate 43 close to the inner side plate 42 is provided with a second boss 431, and the second boss 431 is fixedly connected to the second flat portion 424. Exemplarily, the first boss 75 and the second boss 431 are respectively lapped onto the two sides of the second flat portion 424 along the second direction Y, and are plug welded and ground flat, so that the connection of the third reinforcing plate 7, the inner side plate 42 and the top plate 43 is flat and gapless.

[0078] Further, in some embodiments, the support arm 4 has a front segment 4a, a middle segment 4b and a rear segment 4c connected in sequence along the first direction X. The front segment 4a is fixedly connected with the back 1b, the middle segment 4b is provided with a first hinge hole for hinge connection with the oil cylinder, and the rear segment 4c is provided with a second hinge hole for hinge connection with the frame of the working machine.

[0079] The first hinge holes are arranged on the two support arms 4, and double oil cylinders can be arranged so as to provide greater supporting force.

[0080] Specifically, the support arm 4 comprises the outer side plate 41, the inner side plate 42, the top plate 43 and the bottom plate 44, wherein the first hole 416 of the outer side plate 41 and the fourth hole 427 of the inner side plate 42 are arranged in the second direction Y and oppositely, so as to jointly form the first hinge hole.

[0081] In some embodiments, the bulldozing shovel device further comprises a support beam 8, the support beam 8 penetrates the two middle sections 4b of the two support arms 4 along the second direction Y and is fixedly connected with the two middle sections 4b, so as to further improve the structural strength of the connecting frame assembly.

[0082] Specifically, the second hole 417 of the outer side plate 41 and the fifth hole 428 of the inner side plate 42 are arranged in the second direction Y and oppositely, the support beam 8 penetrates the second holes 417 of the two outer side plates 41 and the fifth holes 428 of the two inner side plates 42 and is fixedly connected with the two outer side plates 41 and the two inner side plates 42.

[0083] Specifically, the second hole 417 of the outer side plate 41 and the fifth hole 428 of the inner side plate 42 are arranged in the second direction Y and oppositely, the support beam 8 penetrates the second holes 417 of the two outer side plates 41 and the fifth holes 428 of the two inner side plates 42 and is fixedly connected with the two outer side plates 41 and the two inner side plates 42.

[0084] In some embodiments, the bulldozing shovel device further comprises at least two reinforcing ear plates 91, the at least two reinforcing ear plates 91 are fixedly connected with at least one side of the two middle sections 4b along the second direction Y, at least part of the structure of the reinforcing ear plate 91 extends around the first hinge hole, and at least part of the structure of the reinforcing ear plate 91 is fixedly connected with the support beam 8, so as to transmit the force to the support beam 8.

[0085] Specifically, the reinforcing ear plate 91 can be provided with four, the four reinforcing ear plates 91 are fixedly connected with the side of the two outer side plates 41 away from the inner side plate 42 and the side of the two inner side plates 42 away from the outer side plate 41.

[0086] In some embodiments, the bulldozing blade device further comprises reinforcing discs 94, which are fixedly connected to opposite sides of the inner side plates 42 or the outer side plates 41 respectively, and extend around the first hinge hole. Exemplarily, four reinforcing discs 94 are provided, which are fixedly connected to one side of the two outer side plates 41 close to the inner side plates 42 and one side of the two inner side plates 42 close to the outer side plates 41 respectively.

[0087] It can be understood that the reinforcing lug 91 and the reinforcing disc 94 are both provided with a hole structure opposite to the first hinge hole, so as to facilitate the installation of the oil cylinder.

[0088] In some embodiments, an arc-shaped transition section is arranged between the front section 4a and the middle section 4b of the support arm 4, so as to avoid stress concentration. Specifically, the arc-shaped transition section comprises a first arc-shaped transition section 414 of the outer side plate 41 and a second arc-shaped transition section 425 of the inner side plate 42.

[0089] Further, in some embodiments, the bulldozing blade device further comprises two groups of reinforcing rib plates 92, which are located on the sides of the two support arms 4 away from each other. Each group of reinforcing rib plates 92 is fixedly connected between the support arm 4 and the first back plate 2, specifically between the outer side plate 41 and the first back plate 2, so as to further improve the connection strength between the bulldozing blade assembly and the connecting frame assembly, and further improve the overall strength of the bulldozing blade device. Exemplarily, the reinforcing rib plate 92 can be a triangular rib plate.

[0090] In some embodiments, the bulldozing blade device further comprises two circular arc plates 93, which are connected with the two groups of reinforcing rib plates 92 respectively. Each group of reinforcing rib plates 92 comprises an upper reinforcing rib plate and a lower reinforcing rib plate arranged in a spaced manner, and the circular arc plate 93 is fixedly connected between the upper reinforcing rib plate and the lower reinforcing rib plate, so as to further improve the overall strength of the bulldozing blade device.

[0091] According to the embodiments of the present application, on the other hand, a working machine is also provided, which comprises a frame and the bulldozing blade device described in the above embodiments. Wherein, the end of the support arm 4 away from the bulldozing blade body 1 is rotatably connected with the frame, specifically the rear section 4c of the support arm 4 is rotatably connected with the frame through the second hinge hole.

[0092] Since the working machine of the present application comprises the above bulldozing blade device, it has the same technical effects as the bulldozing blade device of the present application, which will not be described here again.

[0093] Understandably, the working machine of the utility model can be an engineering equipment such as an excavator, a crane and a loader, and can also be an agricultural equipment, as long as the bulldozing shovel device of the utility model is applied, that is, within the protection scope of the utility model.

[0094] Although the embodiments of the utility model are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An earth moving blade apparatus, characterized by, The application relates to a bulldozing device, which comprises: a bulldozing blade body (1) having a back surface (1b); the back surface (1b) is a surface on one side of the bulldozing blade body (1) along a first direction (X); two first back plates (2) fixedly connected with the back surface (1b) and spaced apart along a second direction (Y); the middle part of the first back plate (2) is arched towards the direction away from the back surface (1b) to form a first cavity (20) with the bulldozing blade body (1); two support arms (4) extending along the first direction (X) and spaced apart along the second direction (Y); both the support arms (4) are fixedly connected with the back surface (1b) and located between the two first back plates (2); a second back plate (5) fixedly connected between the two support arms (4) and fixedly connected with the back surface (1b); the middle part of the second back plate (5) is arched towards the direction away from the back surface (1b) to form a second cavity (50) with the support arms (4) and the bulldozing blade body (1); wherein the first direction (X) intersects the second direction (Y).

2. The dozing blade arrangement of claim 1, wherein, The bulldozing device further comprises two first reinforcing plates (3), the two first reinforcing plates (3) are respectively located in the two first cavities (20) formed between the two first back plates (2) and the bulldozing blade body (1), and the first reinforcing plates (3) are fixedly connected between the first back plates (2) and the back surface (1b); and / or, The bulldozing device further comprises a second reinforcing plate (6), the second reinforcing plate (6) is located in the second cavity (50); the second reinforcing plate (6) is fixedly connected with the support arms (4), the second back plate (5) and the back surface (1b).

3. The dozing blade arrangement of claim 1, wherein, The support arm (4) comprises an outer side plate (41) and an inner side plate (42) connected with each other, the outer side plate (41) and the inner side plate (42) are spaced apart along the second direction (Y); the two inner side plates (42) of the two support arms (4) are located between the two outer side plates (41) of the two support arms (4); In each of the support arms (4), at least one of the outer side plate (41) and the inner side plate (42) is fixedly connected with the back surface (1b).

4. The dozing blade arrangement of claim 3, wherein, The bulldozing blade body (1) has a front surface (1a) arranged opposite to the back surface (1b) along the first direction (X); The outer side plate (41) has a first end surface (411) facing the bulldozing blade body (1), the first end surface (411) is attached to and connected with the back surface (1b); along the first direction (X), a first protruding part (412) is protrudingly arranged on the first end surface (411), the first protruding part (412) penetrates the front surface (1a) and the back surface (1b), and at least part of the structure of the first protruding part (412) protrudes from the front surface (1a); a traction hole (413) is arranged on at least part of the structure of the first protruding part (412) protruding from the front surface (1a); and / or, The outer side plate (41) is integrally formed.

5. An apparatus as claimed in claim 3 or 4, wherein, The inner side plate (42) penetrates the second back plate (5) along the first direction (X) and at least partially extends into the second cavity (50); the inner side plate (42) has a second end surface (421) facing the bulldozer body (1), the second end surface (421) is attached to and connected with the back surface (1b); and / or, The inner side plate (42) is integrally formed.

6. The dozing blade arrangement of claim 3, wherein, The bulldozer device further comprises at least one third reinforcing plate (7), which is fixedly connected to the side of the second back plate (5) away from the bulldozer body (1) and fixedly connected between the two inner side plates (42); The third reinforcing plate (7) is provided with a recess (73), and a through hole (74) is arranged in the recess (73); and / or, The inner side plate (42) has a second flat portion (424), at least part of the structure of the second flat portion (424) is located on the side of the second back plate (5) away from the bulldozer body (1); the side of the third reinforcing plate (7) close to the inner side plate (42) is provided with a first boss (75), and the first boss (75) is fixedly connected to the second flat portion (424).

7. The dozing blade arrangement of claim 6, wherein, The support arm (4) further comprises a top plate (43) and a bottom plate (44), both of which are fixedly connected between the outer side plate (41) and the inner side plate (42), and the top plate (43), the bottom plate (44), the outer side plate (41) and the inner side plate (42) together enclose the support arm (4) with a cavity; The side of the top plate (43) close to the inner side plate (42) is provided with a second boss (431), and the second boss (431) is fixedly connected to the second flat portion (424).

8. The dozing blade arrangement of any one of claims 1-4, wherein, The support arm (4) has a front section (4a), a middle section (4b) and a rear section (4c) connected in sequence along the first direction (X), the front section (4a) is fixedly connected with the back surface (1b), and the middle section (4b) is provided with a first hinge hole; The bulldozer device further comprises a support beam (8) and at least two reinforcing ear plates (91), the support beam (8) penetrates the two middle sections (4b) of the two support arms (4) along the second direction (Y) and is fixedly connected with the two middle sections (4b); the first hinge hole is located above the support beam (8); at least two reinforcing ear plates (91) are fixedly connected to at least one side of the two middle sections (4b) along the second direction (Y), at least part of the structure of the reinforcing ear plate (91) extends around the first hinge hole, and at least part of the structure of the reinforcing ear plate (91) is fixedly connected with the support beam (8); and / or, An arc-shaped transition section is arranged between the front section (4a) and the middle section (4b).

9. The dozing blade arrangement of any one of claims 1-4, wherein, The bulldozing device further comprises two sets of reinforcing rib plates (92), which are respectively arranged on the sides of the two support arms (4) away from each other; each set of the reinforcing rib plates (92) is fixedly connected between the support arm (4) and the first back plate (2).

10. The dozing blade arrangement of claim 9, wherein, The bulldozing device further comprises two circular arc plates (93), which are respectively connected with the two sets of reinforcing rib plates (92). Each set of the reinforcing rib plates (92) comprises upper and lower reinforcing rib plates arranged at intervals, and the circular arc plate (93) is fixedly connected between the upper and lower reinforcing rib plates.

11. A work machine characterized by comprising: Comprise: A vehicle frame; The bulldozing device according to any one of claims 1-10, wherein the end of the support arm (4) away from the bulldozing device body (1) is rotatably connected with the vehicle frame.

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