Turnover cab of bulldozer

Abstract

The utility model is applicable to the technical field, and provides a turnover cab of a bulldozer, which comprises a frame and a compartment arranged on the other side of the frame, a rotating shaft for turnover is arranged at the rear end of the compartment, a lifting mechanism for lifting is connected to the bottom of the compartment, and the lifting mechanism is arranged on the frame and corresponds to the bottom of the compartment. The lifting mechanism comprises a pushing frame, lifting frames are arranged on the left side and the right side of one end of the pushing frame, a pushing device is arranged in the middle of the pushing frame, and the pushing frame comprises two square pushing strips. A square connecting column is fixedly connected to the side wall between the ends, close to the two pushing strips, of the two pushing strips, and a hinge column is fixedly connected to the side wall between the two connecting columns; the lifting mechanism is matched with the turnover shaft, so that when parts on the lower portion of the cab are maintained, only the cab needs to be turned over, the cab does not need to be overall disassembled, convenience is achieved, and maintenance cost can be saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bulldozers, in particular to a flippable cab of a bulldozer. Background Art

[0002] A bulldozer is an earthmoving machine capable of excavating, transporting, and discarding rock and soil. It has a wide range of applications in open-pit mines. For example, it is used to construct dumps, level truck dumps, accumulate scattered ore and rock, and level work platforms and construction sites. It is used not only for auxiliary work but also for primary mining operations. Bulldozers are categorized as either crawler or wheeled. Crawler bulldozers offer high traction, low ground contact pressure, and strong gradeability, but also have lower travel speeds. Wheeled bulldozers offer high speeds, maneuverability, short cycle times, and easy transport and transfer, but with lower traction. These bulldozers are suitable for frequent site changes and field operations. They are available in both general-purpose and specialized models. General-purpose bulldozers are manufactured to standards and are widely used in earthmoving projects. Special-purpose bulldozers are used under specific working conditions, including wetland bulldozers and swamp bulldozers that use triangular wide track shoes to reduce the ground contact pressure, amphibious bulldozers, underwater bulldozers, cabin bulldozers, unmanned bulldozers, plateau bulldozers and bulldozers operating under high-humidity conditions, etc.; as a kind of engineering machinery, the bulldozer often has gearboxes, hydraulic pumps, control links and other components under its cab.

[0003] The cab of the existing bulldozer cannot be flipped during use. Its cab is fixed and installed. Due to the limited space of the inspection opening below, it often cannot meet maintenance requirements. The cab needs to be disassembled as a whole for maintenance, which brings a lot of inconvenience to users. Utility Model Content

[0004] The utility model provides a flippable cab for a bulldozer, aiming to solve the problem that the cab is fixedly mounted on a main frame and the cab needs to be completely disassembled when repairing components below the cab, which causes many troubles.

[0005] The utility model is realized as follows: a bulldozer flip cab comprises a frame and a cabin located on the other side of the frame; a rotating shaft for flipping is provided at the rear end of the cabin, and a lifting mechanism is connected to the bottom of the cabin for lifting; the lifting mechanism is arranged on the frame corresponding to the bottom of the cabin, and cooperates with the rotating shaft to flip the cabin;

[0006] The lifting mechanism includes a pushing frame, a lifting frame is provided on the left and right sides of one end of the pushing frame, and a pushing device is provided in the middle position of the pushing frame, the pushing frame includes two square pushing bars, and a square connecting column is fixedly connected to the side wall between the two pushing bars near one end, and a hinge column is fixedly connected to the side wall between the two connecting columns, and hinge grooves are provided at both ends of the pushing bar, the lifting frame includes a square lifting bar, and a lifting bar hinge block is fixedly connected to the two sides of one end of the lifting bar, and the other end of the lifting bar is hingedly connected to the mounting frame, the pushing device includes a pushing hydraulic rod, and a rotating hinge block is provided at one end of the pushing hydraulic rod piston, and a connecting plate is fixedly connected to the side wall between the rotating hinge block and one end of the pushing hydraulic rod piston.

[0007] Preferably, a square bottom sliding bar is fixedly connected to the upper side of the frame symmetrically on the left and right, a lifting plate hinge frame is fixedly connected to the frame at one end of the bottom sliding bar, and a hydraulic rod hinge frame is fixedly connected to the frame between the two lifting plate hinge frames.

[0008] Preferably, a pushing hinge block is fixedly connected to one side of the lifting bar close to the pushing frame, one end of the pushing hinge block is hinged to the hinge slot, and the lifting bar hinge block is hinged to the lifting plate hinge frame.

[0009] Preferably, the upper side of the mounting bracket is fixedly connected to the bottom of the cabin.

[0010] Preferably, connecting nails are arranged in a ring on one side of the two connecting plates, and one end of the connecting nail passes through the two connecting plates, one end of the rotating hinge block is hinged to the hinge column, and one end of the pushing hydraulic rod is hinged to the hydraulic rod hinge frame.

[0011] Preferably, a bottom sliding groove is opened on the upper side of the bottom sliding bar, a bottom T-shaped slider is hinged in the hinge groove of the push bar near one end of the connecting column, and one end of the bottom T-shaped slider is inserted into the bottom sliding groove.

[0012] Preferably, both sides of the flip axis are arranged on a flip bracket, and the flip bracket is fixed on a side wall of the vehicle frame.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] The other end of the lifting bar drives the upper mounting frame to cooperate with the rotating shaft, and can be turned over under the action of the lifting force of the lifting mechanism, and when repairing the parts under the cab, the cab can be turned over, without the need to disassemble the cab as a whole, which is convenient and saves maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0016] Figure 2 It is a front view of the frame of the utility model;

[0017] Figure 3 It is a structural diagram of the lifting mechanism of the utility model;

[0018] Figure 4 This utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0019] In the figure: 1. frame; 2. cabin; 3. flip bracket; 4. rotating shaft; 5. lifting mechanism; 51. pushing frame; 511. pushing bar; 512. connecting column; 513. hinge column; 514. hinge groove; 515. bottom T-shaped slider; 52. lifting frame; 521. lifting bar; 522. lifting bar hinge block; 523. pushing hinge block; 524. mounting frame; 525. upper end slider; 53. pushing device; 531. pushing hydraulic rod; 532. rotating hinge block; 533. connecting plate; 6. hydraulic rod hinge frame; 7. lifting plate hinge frame; 8. bottom sliding bar; 9. bottom sliding groove. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The present invention provides a bulldozer with a reversible cab. Figure 1-4 As shown, it includes a frame 1 and a cabin 2 placed on the other side of the frame 1. The rear end of the cabin 2 is provided with a rotating shaft 4 for flipping, and the bottom is connected to a lifting mechanism 5 for lifting. The lifting mechanism 5 is arranged on the frame 1 corresponding to the bottom of the cabin 2, and cooperates with the rotating shaft 4 to realize the flipping of the cabin 2.

[0023] The lifting mechanism 5 includes a pushing frame 51, and a lifting frame 52 is provided on the left and right sides of one end of the pushing frame 51, and a pushing device 53 is provided in the middle position of the pushing frame 51. The pushing frame 51 includes two square pushing bars 511, and a square connecting column 512 is fixedly connected to the side wall between the two pushing bars 511 near one end, and a hinge column 513 is fixedly connected to the side wall between the two connecting columns 512. Hinge grooves 514 are provided at both ends of the pushing bar 511, and the lifting frame 52 includes a square lifting bar 521, and a lifting bar hinge block 522 is fixedly connected to both sides of one end of the lifting bar 521, and the other end of the lifting bar 521 is hinged to the mounting frame 524, and the pushing device 53 includes a pushing hydraulic rod 531, and a rotating hinge block 532 is provided at one end of the piston of the pushing hydraulic rod 531, and a connecting plate 533 is fixedly connected to the side wall between the rotating hinge block 532 and one end of the piston of the pushing hydraulic rod 531.

[0024] It should be noted that, due to the existing fixed installation of the driver, the inspection port space left below is limited and often cannot meet the maintenance requirements. The cab needs to be disassembled as a whole during maintenance, which brings many inconveniences to the user. Therefore, in order to solve the problem that the existing driver is fixed on the main frame, which requires the entire cab to be disassembled when repairing the parts below the cab, this solution is provided with a lifting mechanism 5 and a rotating shaft 4, so that when repairing the parts below the cab, the cab can be flipped over without disassembling the cab as a whole, which is convenient and saves maintenance costs.

[0025] Specifically, in this embodiment, the present invention mainly realizes that when repairing the parts at the bottom of the cab, the cab can be turned over without disassembling the cab as a whole, which is convenient and can save maintenance costs. When repairing, the piston on the hydraulic rod 531 is pushed to pull the rotating hinge block 532 to move through the connecting plate 533, and the moving rotating hinge block 532 drives the connecting column 512 to move, so that the connecting column 512 drives the pushing bar 511 to move, so that one end of the bottom T-shaped slider 515 slides inside the bottom sliding groove 9, and at the same time, the connecting column 512 When moving, one end of the pushing bar 511 rotates around the hinged position with the bottom T-shaped slider 515, and the other end of the pushing bar 511 rotates on the pushing hinge block 523, so that the pushing bar 511 pushes the lifting frame 52 to move. When the lifting frame 52 moves, the lifting bar hinge block 522 rotates on the lifting plate hinge frame 7, and the other end of the lifting bar 521 drives the upper end mounting frame 524 to cooperate with the rotating shaft 4. Under the action of the lifting force of the lifting mechanism 5, it can be flipped over. When repairing the parts at the bottom of the cab, the cab can be flipped over without disassembling the cab as a whole. This is convenient and saves maintenance costs.

[0026] In a further preferred embodiment of the present invention, Figure 2-4 As shown, a square bottom sliding bar 8 is fixedly connected to the upper side of the frame 1 symmetrically on the left and right sides, a lifting plate articulated frame 7 is fixedly connected to the frame 1 at one end of the bottom sliding bar 8, and a hydraulic rod articulated frame 6 is fixedly connected to the frame 1 between the two lifting plate articulated frames 7.

[0027] In this embodiment, the bottom sliding bar 8 is provided to limit the position of the bottom T-shaped slider 515, providing a movement track for the bottom T-shaped slider 515, making its operation smoother.

[0028] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a pushing hinge block 523 is fixedly connected to one side of the lifting bar 521 close to the pushing frame 51, one end of the pushing hinge block 523 is hinged to the hinge groove 514, and the lifting bar hinge block 522 is hinged to the lifting plate hinge frame 7.

[0029] In this embodiment, the other end of the pushing bar 511 rotates on the pushing hinge block 523 , so that the pushing bar 511 pushes the lifting frame 52 to move.

[0030] In a further preferred embodiment of the present invention, Figure 2-4 As shown, connecting nails are arranged in a ring on one side of the two connecting plates 533, and one end of the connecting nail passes through the two connecting plates 533, one end of the rotating hinge block 532 is hinged to the hinge column 513, and one end of the hydraulic rod 531 is pushed to be hinged to the hydraulic rod hinge frame 6.

[0031] In this embodiment, when the hydraulic rod 531 is pushed to pull the pushing frame 51 to move, the pushing frame 51 pushes the lifting frame 52 to lift the cabin 2.

[0032] In a further preferred embodiment of the present invention, Figure 2-4 As shown, both sides of the rotating shaft 4 are arranged on the flip bracket 3, and the flip bracket 3 is fixed on the side wall of the frame 1.

[0033] In this embodiment, the cabin 2 passes through the rotating shaft 4 and can be turned over under the action of the lifting force of the lifting mechanism 5.

[0034] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0035] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0036] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A bulldozer reversible cab, characterized in that: The invention comprises a vehicle frame (1) and a cabin (2) arranged on the other side of the vehicle frame (1); a rotating shaft (4) for flipping is provided at the rear end of the cabin (2); a lifting mechanism (5) for lifting is connected to the bottom of the cabin (2); and the lifting mechanism (5) is arranged on the vehicle frame (1) at the bottom of the cabin (2) and cooperates with the rotating shaft (4) to realize flipping of the cabin (2); The lifting mechanism (5) includes a pushing frame (51), and a lifting frame (52) is provided on the left and right sides of one end of the pushing frame (51), and a pushing device (53) is provided in the middle of the pushing frame (51), and the pushing frame (51) includes two square pushing bars (511), and a square connecting column (512) is fixedly connected on the side wall between the two pushing bars (511) near one end, and a hinge column (513) is fixedly connected on the side wall between the two connecting columns (512), and hinge grooves (514) are provided at both ends of the pushing bar (511), and the lifting frame (52) includes a square lifting bar (521), and a lifting bar (521) is fixedly connected on both sides of one end of the lifting bar (521). A lifting bar hinge block (522), the other end of the lifting bar (521) is hinged with a mounting frame (524), the pushing device (53) includes a pushing hydraulic rod (531), one end of the piston of the pushing hydraulic rod (531) is provided with a rotating hinge block (532), and a connecting plate (533) is fixedly connected to the side wall between the rotating hinge block (532) and one end of the piston of the pushing hydraulic rod (531); a square bottom sliding bar (8) is fixedly connected to the upper side of the frame (1) symmetrically on the left and right, a lifting plate hinge frame (7) is fixedly connected to the frame (1) at one end of the bottom sliding bar (8), and a hydraulic rod hinge frame (6) is fixedly connected to the frame (1) between the two lifting plate hinge frames (7); The lifting bar (521) is fixedly connected to a pushing hinge block (523) on one side close to the pushing frame (51), one end of the pushing hinge block (523) is hinged to the hinge groove (514), and the lifting bar hinge block (522) is hinged to the lifting plate hinge frame (7).

2. The reversible cab of a bulldozer according to claim 1, characterized in that: The upper side of the mounting frame (524) is fixedly connected to the bottom of the chamber (2).

3. The reversible cab of a bulldozer according to claim 1, characterized in that: Connecting nails are arranged in a circular pattern on one side of the two connecting disks (533), and one end of the connecting nail passes through the two connecting disks (533). One end of the rotating hinge block (532) is hinged to the hinge column (513), and one end of the pushing hydraulic rod (531) is hinged to the hydraulic rod hinge frame (6).

4. The reversible cab of a bulldozer according to claim 2, characterized in that: A bottom sliding groove (9) is provided on the upper side of the bottom sliding bar (8), and a bottom T-shaped slider (515) is hingedly connected in a hinge groove (514) at one end of the pushing bar (511) close to the connecting column (512), and one end of the bottom T-shaped slider (515) is inserted into the interior of the bottom sliding groove (9).

5. The reversible cab of a bulldozer according to claim 1, characterized in that: Both sides of the rotating shaft (4) are arranged on a flip bracket (3), and the flip bracket (3) is fixed on a side wall of the vehicle frame (1).

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