Short dozer blade applied to miniature excavator

Abstract

The utility model relates to a short dozer blade applied to a miniature excavator. The bulldozing edge shovel solves the technical problem that an existing bulldozing edge shovel is short in service life. Comprising a dozer blade body with a main pushing face on one side, dozer blade edge shovels with auxiliary pushing faces on one side are detachably arranged at the two ends of the dozer blade body respectively, the sides, away from the main pushing face, of the two ends of the dozer blade body are connected with one sides of the dozer blade edge shovels through plug pin assemblies respectively, and swing limiting structures are arranged between the dozer blade edge shovels and the dozer blade body. Two parallel mounting arms perpendicular to the dozer blade body are arranged on the side, away from the main push face, of the dozer blade body, dozer blade mounting assemblies are arranged on the mounting arms and / or the dozer blade body, and the lengths of the mounting arms are equal and do not exceed 800 mm. The swing limiting structure has the advantages that the swing limiting structure can play a role in limiting and protecting the edge shovel of the dozer blade, and the service life of the edge shovel of the dozer blade can be effectively prolonged. And the sealing plate can limit the edge shovel of the dozer blade, so that the mounting stability of the edge shovel of the dozer blade can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavator bulldozers, and in particular relates to a short bulldozer applied to a mini excavator. Background Art

[0002] With the continuous development of the economy, the application of construction machinery equipment has become more and more extensive, and excavators are one of the indispensable equipment in construction machinery; with the continuous increase in labor costs, small excavators can be used in a large number of narrow working conditions, and the working efficiency of small excavators is much higher than that of manual labor, and the use of small excavators has become increasingly widespread; small excavators often climb stairs to work during work, but the bulldozers of existing small excavators are too long to climb stairs and need to be disassembled, which is time-consuming and labor-intensive, resulting in low working efficiency and passability of the excavators.

[0003] In order to solve the deficiencies of the prior art, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a wide-width variable bulldozer shovel [201821796554.7], which includes a main bulldozer shovel, and the rear sides of the two ends of the main blade of the main bulldozer shovel are respectively provided with auxiliary shovel mounting seats and auxiliary shovel positioning pins, and each auxiliary shovel mounting seat is installed with an auxiliary shovel, and the auxiliary shovel includes an auxiliary blade and a hinge seat fixed to the rear side of the auxiliary blade, and the hinge seat is hinged to the auxiliary shovel mounting seat through a hinge pin shaft. The auxiliary shovel mounting seat is provided with an auxiliary shovel deployment positioning hole and an auxiliary shovel recovery positioning hole, and the hinge seat is provided with a pin hole. When the auxiliary blade rotates to the outside of the main blade end, the auxiliary shovel positioning pin is inserted into the coaxial pin hole and the auxiliary shovel deployment positioning hole; when the auxiliary blade rotates to the rear of the main blade end, the auxiliary shovel positioning pin is inserted into the coaxial pin hole and the auxiliary shovel recovery positioning hole.

[0004] The above scheme solves the problem of the existing bulldozer blade being too long and having low passability to a certain extent, but the scheme still has many shortcomings. For example, its auxiliary shovel has no limiting structure during the rotation process, which affects the service life of the auxiliary shovel under long-term use, and the auxiliary shovel positioning pin needs to be displaced and fixed when the auxiliary shovel switches position, which reduces the fixing efficiency of the auxiliary shovel. Summary of the invention

[0005] The utility model aims to solve the above problems and provides a short bulldozer blade for a mini excavator.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a short bulldozer used in a micro excavator comprises a bulldozer body having a main pushing surface on one side, and bulldozer side shovels having an auxiliary pushing surface on one side are detachably provided at both ends of the bulldozer body, and the sides of the two ends of the bulldozer body away from the main pushing surface are respectively connected with the sides of the bulldozer side shovel away from the auxiliary pushing surface through latch assemblies, and a swing limiting structure is provided between the bulldozer side shovel and the bulldozer body, and two mounting arms parallel to each other and vertically arranged with the bulldozer body are provided on the side of the bulldozer body away from the main pushing surface, and a bulldozer mounting assembly is provided on the mounting arm and / or the bulldozer body, and the mounting arms are equal in length and do not exceed 800 mm in length, wherein the existing mounting arms are mostly 990 mm in length, and the mounting arms can facilitate the movement of the bulldozer body to improve convenience.

[0007] In the above-mentioned short bulldozer used in a micro excavator, the main push surface and the auxiliary push surface are both arc-shaped structures, and through holes penetrating the bulldozer body are respectively provided at the upper ends of the main push surface, so that the bulldozer body can be easily installed and transported.

[0008] In the above-mentioned short bulldozer blade used in a micro excavator, a main reinforcement strip extending along the axial direction of the bulldozer blade body is provided on the lower side of the main pushing surface, and a secondary reinforcement strip located on the same horizontal plane as the main reinforcement strip and adjacent to the main reinforcement strip is provided on the lower side of the secondary pushing surface. The secondary reinforcement strip effectively protects the bulldozer side blade and improves the service life of the bulldozer side blade.

[0009] In the above-mentioned short bulldozer used for micro excavators, one end of the mounting arm is fixedly arranged on the side of the middle part of the bulldozer body away from the main pushing surface by welding, and a connecting beam fixedly connected to the side of the middle part of the bulldozer body away from the main pushing surface is provided between the two mounting arms. The connecting beam can improve the connection strength of the two mounting arms and improve the service life of the mounting arms.

[0010] In the above-mentioned short bulldozer used for a micro excavator, the diameter of the mounting arm from one end connected to the bulldozer body gradually decreases to the other end, the length of the mounting arm is less than the length of the bulldozer body and the length of the mounting arm is greater than the length of the bulldozer side blade, so that there is a movable space between the bulldozer body and the excavator, and the bulldozer body can be moved easily through the movable space.

[0011] In the above-mentioned short bulldozer used for micro excavators, two main mounting plates are arranged parallel to each other and axially along the bulldozer body at one end of the bulldozer body and away from the main pushing surface. One end of the main mounting plate extends to the outside of the mounting arm and the other end extends to the edge of one end of the bulldozer body. The main mounting plate can facilitate the connection between the bulldozer body and the bulldozer side shovel.

[0012] In the above-mentioned short bulldozer used for micro excavators, two auxiliary mounting plates arranged parallel to each other and axially are provided on the side of the bulldozer side blade away from the auxiliary pushing surface, one end of the two auxiliary mounting plates extends between the two main mounting plates, and the two auxiliary mounting plates are connected by a sealing plate between the outer sides, and the auxiliary mounting plates can be closed by the sealing plate, and one end of the sealing plate extends between the latch assemblies, and the sealing plate and the latch assemblies cooperate to play a limiting effect, thereby ensuring the fixed connection state between the bulldozer side blade and the bulldozer body.

[0013] In the above-mentioned short bulldozer blade used for a micro excavator, the latch assembly includes two latch bodies arranged between a main mounting plate and a secondary mounting plate, the two latch bodies are arranged adjacent to each other and respectively penetrate each main mounting plate and the secondary mounting plate, wherein the latch body is divided into an inner latch body and an outer latch body, wherein one end of a sealing plate extends between the inner latch body and the outer latch body, and by removing the outer latch body, the bulldozer side blade can be rotatably connected to the bulldozer blade body through the inner latch body, and when the bulldozer side blade is rotated into place, the outer latch body can be installed to lock it to maintain the connection state between the bulldozer side blade and the bulldozer blade body.

[0014] In the above-mentioned short bulldozer used in a micro excavator, the swing limiting structure includes a first limiting plate and a second limiting plate which are arranged on the side of the bulldozer side blade away from the auxiliary pushing surface and can abut against the main mounting plate when the bulldozer side blade swings relative to the bulldozer body, and the first limiting plate is arranged between one end of the two auxiliary mounting plates away from the main mounting plate, and the second limiting plate is a split structure and is respectively located on the side of the two auxiliary mounting plates away from each other. The first limiting plate and the second limiting plate abut against the main mounting plate when the bulldozer side blade is rotated into place, which can effectively protect the bulldozer side blade and improve the service life.

[0015] In the above-mentioned short bulldozer used in a mini excavator, the bulldozer mounting assembly includes a mounting seat arranged in the middle of the connecting beam, and the mounting seat and the end of the mounting arm away from the bulldozer body are respectively provided with mounting pins.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. The swing limit structure can provide limit protection for the side shovel of the bulldozer, which can effectively increase the service life of the side shovel of the bulldozer.

[0018] 2. The sealing plate can limit the side shovel of the bulldozer and ensure the installation stability of the side shovel of the bulldozer.

[0019] 3. The combination of the sealing plate and the latch assembly can reduce production costs and improve rotation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a structural schematic diagram of a bulldozer body in the utility model.

[0022] Figure 3 It is a structural schematic diagram of a bulldozer blade mounting assembly in the utility model.

[0023] In the figure: bulldozer body 1, main pushing surface 11, through hole 111, main reinforcing strip 112, main mounting plate 12, bulldozer side blade 2, auxiliary pushing surface 21, auxiliary reinforcing strip 211, auxiliary mounting plate 22, sealing plate 23, latch assembly 3, latch body 31, swing limiting structure 4, first limiting plate 41, second limiting plate 42, mounting arm 5, connecting beam 51, bulldozer mounting assembly 6, mounting seat 61, mounting pin 62. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention is a short bulldozer for mini excavators, comprising a bulldozer body 1 having a main pushing surface 11 on one side, the main pushing surface 11 can facilitate the bulldozer body 1 to level the ground, and the bulldozer body 1 can improve the stability of the excavator, and the two ends of the bulldozer body 1 are respectively detachably provided with a bulldozer side shovel 2 having an auxiliary pushing surface 21 on one side, and the bulldozer side shovel 2 can increase the working area and improve the working efficiency of the excavator, and the two ends of the bulldozer body 1 are connected to the side of the bulldozer side shovel 2 away from the auxiliary pushing surface 21 through a latch assembly 3, respectively, and the bulldozer side shovel 2 can be connected and fixed to the bulldozer body 1 through the latch assembly 3, and a swing limiting structure 4 is provided between the bulldozer side shovel 2 and the bulldozer body 1, and the swing limiting structure 4 can It can limit the position of the bulldozer side shovel 2 when it is recovered, and can effectively protect the bulldozer side shovel 2 and the bulldozer body 1, thereby increasing the service life. Two mounting arms 5 which are parallel to each other and vertically arranged with the bulldozer body 1 are provided on the side of the bulldozer body 1 away from the main pushing surface 11. The mounting arms 5 can leave a little gap between the bulldozer body 1 and the excavator, so as to facilitate the movement of the bulldozer body 1. A bulldozer mounting assembly 6 is provided on the mounting arms 5 and / or the bulldozer body 1. The bulldozer mounting assembly 6 can facilitate the mounting and fixing of the mounting arms 5 and the excavator, thereby improving the installation efficiency. The mounting arms 5 are of equal length and do not exceed 800 mm in length. Most of the existing mounting arms 5 are 990 mm in length. The mounting arms 5 can facilitate the movement of the bulldozer body 1, thereby improving the convenience.

[0026] Specifically, the main push surface 11 and the auxiliary push surface 21 are both in an arc structure, which can facilitate the main push surface 11 and the auxiliary push surface 21 to clean the road surface and improve work efficiency. The arc structure can facilitate the bulldozer body 1 to climb stairs, and through holes 111 that penetrate the bulldozer body 1 are respectively provided at both ends of the upper side of the main push surface 11. The through holes 111 can facilitate the installation and transportation of the bulldozer body 1.

[0027] Among them, a main reinforcement strip 112 extending axially along the bulldozer blade body 1 is provided on the lower side of the main push surface 11. The main reinforcement strip 112 can effectively protect the bulldozer blade body 1 and improve the service life of the bulldozer blade body 1. A secondary reinforcement strip 211 is provided on the lower side of the secondary push surface 21 and is located on the same horizontal plane as the main reinforcement strip 112 and is adjacent to the main reinforcement strip 112. The secondary reinforcement strip 211 can effectively protect the bulldozer side blade 2 and improve the service life of the bulldozer side blade 2.

[0028] like Figure 1 , Figure 3 As shown, one end of the mounting arm 5 is fixedly arranged on the side of the middle part of the bulldozer body 1 away from the main pushing surface 11 by welding. The welding method can ensure the connection stability between the mounting arm 5 and the bulldozer body 1, and a connecting beam 51 fixedly connected to the side of the middle part of the bulldozer body 1 away from the main pushing surface 11 is provided between the two mounting arms 5. The connecting beam 51 can improve the connection strength of the two mounting arms 5 and improve the service life of the mounting arms 5.

[0029] Furthermore, the diameter of the mounting arm 5 from one end connected to the bulldozer body 1 gradually decreases to the other end, the length of the mounting arm 5 is smaller than the length of the bulldozer body 1 and the length of the mounting arm 5 is larger than the length of the bulldozer side shovel 2, so that there is a movable space between the bulldozer body 1 and the excavator, and the bulldozer body 1 can be moved conveniently through the movable space.

[0030] Among them, two main mounting plates 12 are provided at one end of the bulldozer body 1 and away from the main pushing surface 11, which are arranged parallel to each other and axially along the bulldozer body 1. One end of the main mounting plate 12 extends to the outside of the mounting arm 5 and the other end extends to the edge of one end of the bulldozer body 1. The main mounting plate 12 can facilitate the connection between the bulldozer body 1 and the bulldozer side blade 2.

[0031] Combination Figure 1 , Figure 3As shown, two auxiliary mounting plates 22 which are arranged parallel to each other and axially are provided on the side of the bulldozer side shovel 2 away from the auxiliary pushing surface 21, one end of the two auxiliary mounting plates 22 extends between the two main mounting plates 12, and the auxiliary mounting plates 22 and the main mounting plates 12 are fixedly connected by a latch assembly 3, and are connected between the outer sides of the two auxiliary mounting plates 22 by a sealing plate 23, the auxiliary mounting plates 22 can be closed by the sealing plate 23, and one end of the sealing plate 23 extends between the latch assembly 3, and the sealing plate 23 cooperates with the latch assembly 3 to play a limiting effect, thereby ensuring the fixed connection state between the bulldozer side shovel 2 and the bulldozer body 1.

[0032] Among them, the latch assembly 3 includes two latch bodies 31 arranged between the main mounting plate 12 and the auxiliary mounting plate 22, and the two latch bodies 31 are arranged adjacent to each other and respectively penetrate each main mounting plate 12 and the auxiliary mounting plate 22, wherein the latch body 31 is divided into an inner latch body and an outer latch body, wherein one end of the sealing plate 23 extends and is arranged between the inner latch body and the outer latch body, and by removing the outer latch body, the bulldozer side blade 2 can be rotatably connected to the bulldozer shovel body 1 through the inner latch body, and when the bulldozer side blade 2 is rotated into place, the outer latch body can be installed to lock it to maintain the connection state of the bulldozer side blade 2 and the bulldozer shovel body 1.

[0033] Specifically, the swing limiting structure 4 includes a first limiting plate 41 and a second limiting plate 42 which are arranged on the side of the bulldozer side blade 2 away from the auxiliary pushing surface 21 and can abut against the main mounting plate 12 when the bulldozer side blade 2 swings relative to the bulldozer body 1, and the first limiting plate 41 is arranged between one end of the two auxiliary mounting plates 22 away from the main mounting plate 12, and the second limiting plate 42 is a split structure and is respectively located on the side of the two auxiliary mounting plates 22 away from each other. The first limiting plate 41 and the second limiting plate 42 abut against the main mounting plate 12 when the bulldozer side blade 2 is rotated into place, which can effectively protect the bulldozer side blade and improve its service life.

[0034] Combination Figure 3 As shown, the bulldozer mounting assembly 6 includes a mounting seat 61 arranged in the middle of the connecting beam 51, and the mounting seat 61 and the end of the mounting arm 5 away from the bulldozer body 1 are respectively provided with a mounting pin 62, which can be easily fixedly connected to the excavator through the mounting seat 61 and the mounting pin 62.

[0035] The principle of this embodiment is that the bulldozer side blades 2 on both sides of the bulldozer body 1 can increase the working area and improve the work efficiency, and the bulldozer side blades 2 can be rotatably set on the side of the bulldozer body 1 and abut against the bulldozer body 1 through the swing limiting structure 4 and the latch assembly 3, which can effectively reduce the overall length of the bulldozer, facilitate the excavator to climb stairs, and improve the passability of the excavator; and the bulldozer side blades 2 can limit the bulldozer side blades 2 during rotation through the swing limiting structure 4, effectively improving the service life of the bulldozer side blades 2.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although this article uses more terms such as bulldozer body 1, main push surface 11, through hole 111, main reinforcement strip 112, main mounting plate 12, bulldozer side blade 2, auxiliary push surface 21, auxiliary reinforcement strip 211, auxiliary mounting plate 22, sealing plate 23, latch assembly 3, latch body 31, swing limit structure 4, first limit plate 41, second limit plate 42, mounting arm 5, connecting beam 51, bulldozer mounting assembly 6, mounting seat 61, mounting pin 62, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A short bulldozer blade for use in a mini excavator, comprising a bulldozer blade body (1) having a main push surface (11) on one side, and bulldozer blade side blades (2) having a secondary push surface (21) on one side which can be detachably provided at both ends of the bulldozer blade body (1), characterized in that: The sides of both ends of the bulldozer body (1) away from the main pushing surface (11) are connected to the sides of the bulldozer side blade (2) away from the auxiliary pushing surface (21) through a latch assembly (3), and a swing limit structure (4) is provided between the bulldozer side blade (2) and the bulldozer body (1). Two mounting arms (5) parallel to each other and vertically arranged with respect to the bulldozer body (1) are provided on the side of the bulldozer body (1) away from the main pushing surface (11). The mounting arms (5) and / or the bulldozer body (1) are provided with a bulldozer mounting assembly (6), and the mounting arms (5) are equal in length and do not exceed 800 mm in length.

2. A short bulldozer blade for a mini excavator according to claim 1, characterized in that: The main push surface (11) and the auxiliary push surface (21) are both in the form of arc structures, and through holes (111) penetrating the bulldozer body (1) are respectively provided at both ends of the upper side of the main push surface (11).

3. The short bulldozer blade for a mini excavator according to claim 1, characterized in that: A main reinforcing strip (112) extending axially along the bulldozer body (1) is provided on the lower side of the main pushing surface (11), and a secondary reinforcing strip (211) located on the same horizontal plane as the main reinforcing strip (112) and arranged adjacent to the secondary pushing surface (21) is provided on the lower side of the secondary pushing surface (21).

4. A short bulldozer blade for a mini excavator according to claim 1, 2 or 3, characterized in that: One end of the mounting arm (5) is fixedly mounted on a side of the middle of the bulldozer body (1) away from the main pushing surface (11) by welding, and a connecting beam (51) fixedly connected to a side of the middle of the bulldozer body (1) away from the main pushing surface (11) is provided between the two mounting arms (5).

5. The short bulldozer blade for a mini excavator according to claim 1, characterized in that: The diameter of the mounting arm (5) at one end connected to the bulldozer body (1) gradually decreases towards the other end, the length of the mounting arm (5) is smaller than the length of the bulldozer body (1) and the length of the mounting arm (5) is greater than the length of the bulldozer side blade (2).

6. The short bulldozer blade for a mini excavator according to claim 1, characterized in that: Two main mounting plates (12) are arranged parallel to each other and along the axial direction of the bulldozer body (1) at one end of the bulldozer body (1) and away from the main pushing surface (11). One end of the main mounting plate (12) extends to the outside of the mounting arm (5) and the other end extends to the edge of one end of the bulldozer body (1).

7. The short bulldozer blade for a mini excavator according to claim 6, characterized in that: The bulldozer side blade (2) is provided with two auxiliary mounting plates (22) which are arranged parallel to each other and axially on the side away from the auxiliary pushing surface (21); one end of the two auxiliary mounting plates (22) extends between the two main mounting plates (12), and the outer sides of the two auxiliary mounting plates (22) are connected by a sealing plate (23).

8. The short bulldozer blade for a mini excavator according to claim 6, characterized in that: The latch assembly (3) comprises two latch bodies (31) arranged between the main mounting plate (12) and the auxiliary mounting plate (22); the two latch bodies (31) are arranged adjacent to each other and respectively penetrate each main mounting plate (12) and the auxiliary mounting plate (22).

9. The short bulldozer blade for a mini excavator according to claim 7, characterized in that: The swing limiting structure (4) comprises a first limiting plate (41) and a second limiting plate (42) which are arranged on a side of the bulldozer blade side blade (2) away from the auxiliary pushing surface (21) and can abut against the main mounting plate (12) when the bulldozer blade side blade (2) swings relative to the bulldozer blade body (1), and the first limiting plate (41) is arranged between one end of the two auxiliary mounting plates (22) away from the main mounting plate (12), and the second limiting plate (42) is a split structure and is respectively located on the side of the two auxiliary mounting plates (22) away from each other.

10. The short bulldozer blade for a mini excavator according to claim 4, characterized in that: The bulldozer blade mounting assembly (6) comprises a mounting seat (61) arranged in the middle of the connecting beam (51), and the mounting seat (61) and the end of the mounting arm (5) away from the bulldozer blade body (1) are respectively provided with a mounting pin shaft (62).

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