Electric drive bulldozer frame and bulldozer

Abstract

The electrically-driven bulldozer frame comprises a frame assembly, a connecting column is arranged at the front end of the frame assembly, a balance beam mounting frame is arranged in the middle of the frame assembly, a rear axle box is arranged on the rear portion of the frame assembly, the frame assembly comprises frame bodies which are symmetrically arranged, and the two ends of the balance beam mounting frame are connected into the frame bodies in an embedded mode; the rear axle box comprises a left shell and a right shell, and the left shell and the right shell are connected through a front panel, a rear panel, a top plate and a bottom plate to form a box body structure. A connecting pipe and a pivot mounting base are arranged in the rear axle box, the two ends of the connecting pipe are connected with the left shell and the right shell respectively, the pivot mounting base and the bottom plate are integrally arranged, and the two ends of the pivot mounting base are connected with the left shell and the right shell respectively; guide rails are symmetrically connected to the inner sides of the bottoms of the left shell and the right shell; an inlet-outlet for the guide rails to slide outwards is formed in the bottom of the rear panel; a mounting access hole is formed in the top plate; and an opening is formed in the connecting pipe. The system can meet the use requirement of a new energy vehicle frame, and can meet the arrangement requirement of a large number of electrical elements and pipelines.

Description

Technical Field

[0001] The invention belongs to the technical field of bulldozer frames, and in particular relates to an electric drive bulldozer frame and a bulldozer. Background Art

[0002] Bulldozer is a highly efficient and versatile earthwork and mining machinery that can meet a variety of working conditions such as site cleaning and leveling, foundation pit excavation and backfilling, ore bed stripping, ore rock accumulation, etc. With the continuous development of new energy technology and the growing demand for energy conservation and emission reduction, new energy bulldozers are imperative.

[0003] At present, the frame structure used by bulldozers is difficult to meet the needs of new energy bulldozers. Although the existing structure has certain strength and rigidity, it is difficult to meet the layout requirements of a large number of electrical components and pipelines of new energy bulldozers. Summary of the invention

[0004] The purpose of the present invention is to provide an electric drive bulldozer frame and a bulldozer, which can adapt to the use requirements of new energy frames and meet the layout requirements of a large number of electrical components and pipelines.

[0005] To achieve the above-mentioned object, the present invention provides an electric drive bulldozer frame, including a frame assembly, a connecting column is provided at the front end of the frame assembly, a balance beam mounting frame is provided in the middle, and a rear axle box is provided at the rear, the frame assembly includes a symmetrically arranged frame body, and both ends of the balance beam mounting frame are embedded and connected inside the frame body;

[0006] The rear axle box comprises a left shell and a right shell, and the left shell and the right shell are connected by a front panel, a rear panel, a top panel and a bottom panel to form a box structure;

[0007] A connecting pipe and a pivot mounting seat are provided inside the rear axle box, the two ends of the connecting pipe are respectively connected to the left housing and the right housing, the pivot mounting seat is located below the connecting pipe, is integrally arranged with the bottom plate, and the two ends are respectively connected to the left housing and the right housing;

[0008] The inner sides of the bottoms of the left and right shells are symmetrically connected with guide rails, and the bottom of the rear panel is provided with an inlet and outlet for the guide rails to slide outwards;

[0009] The top plate is provided with an installation inspection port;

[0010] The connecting pipe is provided with an opening.

[0011] As a further solution of the present invention: the frame body includes an inner frame plate, an outer frame plate, an upper frame beam and a lower frame beam, and the inner frame plate, the outer frame plate, the upper frame beam and the lower frame beam form a hollow closed structure.

[0012] As a further solution of the present invention: the end of the balance beam mounting frame embedded in the frame body is connected with a rib plate, and the rib plate is fixedly connected to the frame upper beam, the frame inner side plate, and the frame lower beam.

[0013] As a further solution of the present invention: the opening includes a front opening and a rear opening, and the front opening and the rear opening are both connected to a reinforcing plate.

[0014] As a further solution of the present invention: the installation inspection port includes a front installation inspection port and a rear installation inspection port corresponding to the front opening and the rear opening respectively.

[0015] As a further solution of the present invention: a drag ring is connected inside the connecting pipe.

[0016] To achieve the above object, the present invention also provides a bulldozer, comprising the above electric drive bulldozer frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The pivot mounting seat and the connecting pipe connecting the left and right shells are the main load-bearing parts, which reduce the load of the front panel, rear panel and top plate, and can effectively ensure the strength and rigidity of the frame, while achieving the lightweight of the bulldozer and adapting to the use requirements of new energy frames;

[0019] The openings on the connecting pipe and the installation inspection openings on the top plate can greatly facilitate the installation and layout of the pipeline line;

[0020] The guide rails connecting the bottom of the left and right shells, together with the openings set on the rear panel, allow the internal components of the rear axle box to be installed into the rear axle box together after external pre-installation, avoiding the problem of installation difficulties due to the small internal space of the rear axle box, and can meet the layout requirements of a large number of electrical components and pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the bulldozer frame structure of the present invention;

[0022] Figure 2 It is an exploded view of the connection between the balance beam mounting frame and the vehicle frame body in the present invention;

[0023] Figure 3 It is a schematic diagram of the rear axle box junction in the present invention;

[0024] Figure 4 It is an exploded view of the rear axle box structure in the present invention;

[0025] Figure 5 It is a cross-sectional view of the rear axle box structure in the present invention;

[0026] Figure 6 It is an exploded view of the connecting pipe structure in the present invention.

[0027] In the figure: 1, frame body, 2, connecting column, 3, balance beam mounting frame, 4, rear axle box, 5, rib plate, 6, pivot mounting seat, 7, connecting pipe, 8, front installation inspection port, 9, rear installation inspection port, 10, guide rail;

[0028] 1.1, outer side plate of the frame, 1.2, lower beam of the frame, 1.3, inner side plate of the frame, 1.4, upper beam of the frame;

[0029] 4.1, left housing, 4.2, right housing, 4.3, front panel, 4.4, top panel, 4.5, rear panel, 4.6, bottom panel;

[0030] 4.5.1. Import and export;

[0031] 7.1. Front opening, 7.2. Rear opening, 7.3. Reinforcement plate, 7.4. Drag ring. DETAILED DESCRIPTION

[0032] The present invention will be further described below by way of examples.

[0033] like Figure 1 , Figures 3 to 6 As shown, an electric bulldozer frame includes a frame assembly, a connecting column 2 is provided at the front end of the frame assembly, a balance beam mounting frame 3 is provided in the middle, and a rear axle box 4 is provided at the rear. The frame assembly includes a symmetrically arranged frame body 1, and both ends of the balance beam mounting frame 3 are embedded and connected inside the frame body 1; the embedded structure of the balance beam mounting frame 3 makes the force at the connection mainly borne by the structure itself, thereby reducing the force on the weld;

[0034] The rear axle box 4 includes a left shell 4.1 and a right shell 4.2, and the left shell 4.1 and the right shell 4.2 are connected to form a box structure through a front panel 4.3, a rear panel 4.5, a top plate 4.4 and a bottom plate 4.6;

[0035] A connecting tube 7 and a pivot mounting seat 6 are provided inside the rear axle box 4. The two ends of the connecting tube 7 are connected to the left shell 4.1 and the right shell 4.2 respectively. The pivot mounting seat 6 is located below the connecting tube 7 and is integrally arranged with the bottom plate 4.6. The two ends are connected to the left shell 4.1 and the right shell 4.2 respectively. The connecting tube 7 and the pivot mounting seat 6 can effectively strengthen the overall strength of the rear axle box 4 and reduce the stress on the front panel 4.3, the rear panel 4.5 and the top plate 4.4 of the rear axle box 4, so that holes can be flexibly opened on the front panel 4.3, the rear panel 4.5 and the top plate 4.4 as needed.

[0036] The left housing 4.1 and the right housing 4.2 are symmetrically connected with guide rails 10 at the bottom, and the bottom of the rear panel 4.5 is provided with an inlet and outlet 4.5.1 for the guide rails 10 to slide outwards; it is convenient to install the components in the rear axle box 4 together with the components in the rear axle box 4 after pre-installation at the outside of the rear axle box 4, thereby improving the efficiency of component assembly;

[0037] An installation inspection port is provided on the top plate 4.4;

[0038] The connecting pipe 7 is provided with an opening;

[0039] The opening is used for installing and arranging the pipelines, and the installation and inspection opening on the top plate 4.4 can facilitate the arrangement of the pipelines.

[0040] Further, such as Figure 2 As shown, the frame body 1 includes a frame inner plate 1.3, a frame outer plate 1.1, a frame upper beam 1.4 and a frame lower beam 1.2, and the frame inner plate 1.3, the frame outer plate 1.1, the frame upper beam 1.4 and the frame lower beam 1.2 form a hollow closed structure.

[0041] In order to further reduce the stress on the weld around the balance beam mounting frame 3, the end of the balance beam mounting frame 3 embedded in the frame body 1 is connected with a rib plate 5, and the rib plate 5 is fixedly connected to the frame upper beam 1.4, the frame inner side plate 1.3, and the frame lower beam 1.2; the rib plate 5 can be provided in multiple groups as needed, such as Figure 2 There are two groups shown in FIG.

[0042] The balance beam mounting frame 3 is combined with the rib plate 5 by an embedded connection method, which can also enhance the strength and rigidity of the frame body 1 and effectively prevent the tearing of the inner side plate 1.3 of the frame.

[0043] In order to make the pipeline distribution more regular and convenient for installation and maintenance, further, such as Figure 5 and Figure 6 As shown, the openings include a front opening 7.1 and a rear opening 7.2, both of which are connected with a reinforcing plate 7.3. The front opening 7.1 is used for water pipes and hydraulic pipes, and the rear opening 7.2 is used for motor wires. The reinforcing plate 7.3 can effectively compensate for the strength loss caused by the opening of the connecting pipe 7.

[0044] Further, such as Figure 4 and Figure 5 As shown, the installation inspection port includes a front installation inspection port 8 and a rear installation inspection port 9 corresponding to the front opening 7.1 and the rear opening 7.2 respectively, so that the pipeline line can be arranged and installed between the connecting pipe 7 and the top plate 4.4 of the rear axle box 4, thereby improving the space utilization inside the rear axle box 4.

[0045] Further, such as Figure 5 and Figure 6As shown, a drag ring 7.4 is connected to the inside of the connecting pipe 7, and the drag ring 7.4 can support the inner side of the motor, reduce the contact area between the motor and the connecting pipe 7, and facilitate the installation of the motor.

[0046] The present invention also provides a bulldozer, comprising the above-mentioned electric drive bulldozer frame.

Claims

1. An electric bulldozer frame, comprising a frame assembly, wherein a connecting column (2) is provided at the front end of the frame assembly, a balance beam mounting frame (3) is provided in the middle, and a rear axle box (4) is provided at the rear. The frame assembly comprises a symmetrically arranged frame body (1), characterized in that: Both ends of the balance beam mounting frame (3) are embedded and connected inside the vehicle frame (1); The rear axle box (4) comprises a left shell (4.1) and a right shell (4.2), and the left shell (4.1) and the right shell (4.2) are connected via a front panel (4.3), a rear panel (4.5), a top plate (4.4) and a bottom plate (4.6) to form a box structure; A connecting pipe (7) and a pivot mounting seat (6) are provided inside the rear axle box (4); the two ends of the connecting pipe (7) are respectively connected to the left housing (4.1) and the right housing (4.2); the pivot mounting seat (6) is located below the connecting pipe (7) and is integrally arranged with the bottom plate (4.6); and the two ends are respectively connected to the left housing (4.1) and the right housing (4.2); The guide rails (10) are symmetrically connected to the inner sides of the bottoms of the left shell (4.1) and the right shell (4.2), and the bottom of the rear panel (4.5) is provided with an inlet and outlet (4.5.1) for the guide rails (10) to slide outwards; The top plate (4.4) is provided with an installation inspection opening; The connecting pipe (7) is provided with an opening.

2. The electric bulldozer frame according to claim 1, characterized in that: The frame body (1) comprises a frame inner side plate (1.3), a frame outer side plate (1.1), a frame upper beam (1.4) and a frame lower beam (1.2); the frame inner side plate (1.3), the frame outer side plate (1.1), the frame upper beam (1.4) and the frame lower beam (1.2) form a hollow closed structure.

3. The electric bulldozer frame according to claim 2, characterized in that: The end of the balance beam mounting frame (3) embedded in the frame body (1) is connected to a rib plate (5), and the rib plate (5) is fixedly connected to the frame upper beam (1.4), the frame inner side plate (1.3), and the frame lower beam (1.2).

4. An electric bulldozer frame according to any one of claims 1 to 3, characterized in that: The openings include a front opening (7.1) and a rear opening (7.2), and the front opening (7.1) and the rear opening (7.2) are both connected to a reinforcing plate (7.3).

5. The electric bulldozer frame according to claim 4, characterized in that: The installation inspection opening comprises a front installation inspection opening (8) and a rear installation inspection opening (9) which correspond to the front opening (7.1) and the rear opening (7.2) respectively.

6. An electric bulldozer frame according to any one of claims 1 to 3, characterized in that: The connecting pipe (7) is internally connected with a drag ring (7.4).

7. A bulldozer, characterized in that: The electric bulldozer frame comprises the frame described in any one of claims 1 to 6.

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