A excavator cab with roll-over prevention buffer structure

Abstract

The utility model relates to the excavator cab field especially relates to a kind of excavator cab with anti-rollover buffer structure, including cab, the bottom end of cab is connected with rotary table, rotary table top is provided with installation slot, its installation slot left and right sides are equipped with protective net, and the middle lower part in cab is horizontally installed with bottom plate, bottom plate is located rotary table top, bottom plate bottom end left and right sides are symmetrically equipped with buffer mechanism, buffer mechanism is located in the installation slot on rotary table, buffer mechanism bottom end is movably connected with base plate, by setting buffer mechanism, when excavator ramp operation, if cab bears external impact, this mechanism can buffer absorption external force, to avoid rotary table connecting bolt fracture due to excessive stress, prevent excavator cab rollover, guarantee the safety of driver.

Description

Technical Field

[0001] This utility model relates to the field of excavator cab technology, and in particular to an excavator cab with an anti-rollover buffer structure. Background Technology

[0002] An excavator is a type of engineering machinery driven by hydraulics. It mainly performs earthwork excavation, loading, crushing, and transportation through its robotic arm (working device). It is widely used in construction, mining, municipal engineering, farmland renovation, river dredging, and other scenarios, and is a highly efficient "earthwork construction tool" in engineering construction.

[0003] Because the excavator cab is rigidly connected to the turntable with bolts, when the equipment is operating on slopes or other working conditions, the bolts may break due to excessive stress for various reasons, causing the cab to overturn and posing a threat to the personal safety of the operator. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an excavator cab with an anti-rollover buffer structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An excavator cab with an anti-rollover buffer structure includes a cab, a turntable connected to the bottom of the cab, an installation groove on the top of the turntable, protective nets installed on the left and right sides of the installation groove, and a base plate horizontally installed in the lower middle part of the cab, the base plate being above the turntable, buffer mechanisms symmetrically installed on the left and right sides of the bottom of the base plate, the buffer mechanisms being located in the installation groove on the turntable, and a base plate being movably connected to the bottom of the buffer mechanism.

[0007] The buffer mechanism has an upper support plate on one side. The upper support plate is fixed to the bottom plate through the buffer threaded hole directly below the threaded through hole in the middle. Connecting plates are fixedly installed on the left and right sides of one side surface of the upper support plate. Multiple first fixing blocks are fixedly installed at both ends of the outer side of the connecting plate. Corresponding two first fixing blocks are rotatably connected to one side of the hydraulic rod through the first rotating column.

[0008] In addition, a preferred structure is that the base plate has multiple threaded pupils.

[0009] In addition, a preferred structure is that threaded holes are provided on both sides of the top of the turntable, and the threaded holes correspond to the positions of the threaded through holes on the outer side of the base plate.

[0010] In addition, a preferred structure is that the outer side of the bottom end of the upper support plate is fixedly connected to one side of multiple buffer springs.

[0011] In addition, a preferred structure is that a second fixing block is fixedly installed at both ends of the top left and right sides of the substrate, and the second fixing block is rotatably connected to the other side of the hydraulic rod through a second rotating column.

[0012] In addition, a preferred structure is that the outer side of the substrate is fixedly connected to the other side of the spring, and a support column is fixedly installed at the center of the top of the substrate.

[0013] In addition, a preferred structure is that multiple auxiliary buffer pillars are connected below the substrate, and the bottom end of the auxiliary buffer pillars is connected to a lower support plate through a damper, with the bottom end of the lower support plate contacting the bottom end of the mounting groove.

[0014] In addition, the preferred structure is that the auxiliary buffer column has a groove, the top plate of the groove contacts the top plate of the damper, the damper is located in the lower support plate, and the size of the damper is smaller than the size of the lower support plate, and there is a gap between the outer side of the damper and the inner wall of the lower support plate.

[0015] The beneficial effects of this utility model are as follows: by setting up a buffer mechanism, when the excavator is working on a slope, if the cab is subjected to external impact, the mechanism can buffer and absorb the external force. While preventing the bolts from breaking due to excessive force, it can also increase the tightness between the cab and the turntable, prevent the excavator cab from overturning, and ensure the safety of the driver. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an excavator cab with an anti-rollover buffer structure proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of an excavator cab with an anti-rollover buffer structure proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the turntable structure of an excavator cab with an anti-rollover buffer structure proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the buffer mechanism structure of an excavator cab with an anti-rollover buffer structure proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the auxiliary buffer column structure of an excavator cab with an anti-rollover buffer structure proposed in this utility model.

[0021] In the diagram: 1. Cab; 11. Floor plate; 12. Threaded through hole; 2. Turntable; 21. Turntable threaded hole; 22. Mounting slot; 23. Protective net; 3. Buffer mechanism; 31. Upper support plate; 32. Buffer threaded hole; 33. Connecting plate; 34. First fixing block; 35. First rotating column; 36. Hydraulic rod; 37. Buffer spring; 4. Base plate; 41. Second fixing block; 42. Second rotating column; 43. Support column; 44. Auxiliary buffer column; 45. Lower support plate; 46. Damper. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 An excavator cab with an anti-rollover buffer structure includes a cab 1, a turntable 2, a buffer mechanism 3, and a base plate 4. A base plate 11 is horizontally installed in the lower middle part of the cab 1. Multiple threaded through holes 12 are opened on the base plate 11. The bottom end of the cab 1 is connected to the turntable 2. Multiple turntable threaded holes 21 are provided on both sides of the top end of the turntable 2. The turntable threaded holes 21 correspond to the positions of the threaded through holes 12 on the outer side of the base plate 11. The top end of the turntable 2 is provided with a mounting groove 22. Protective nets 23 are connected to the left and right sides of the mounting groove 22.

[0024] A buffer mechanism 3 is fixedly installed on the left and right sides of the bottom end of the base plate 11. The buffer mechanism 3 is located in the mounting groove 22 at the top of the turntable 2. An upper support plate 31 is provided on one side of the buffer mechanism 3. Multiple buffer threaded holes 32 are provided on the upper support plate 31. The positions of the buffer threaded holes 32 and the threaded through holes 12 are corresponding. A connecting plate 33 is fixedly installed on the left and right ends of one side surface of the upper support plate 31. Multiple first fixing blocks 34 are fixedly installed on the outer ends of the connecting plate 33. Two corresponding first fixing blocks 34 are rotatably connected to one side of the hydraulic rod 36 through the first rotating column 35. The bottom end of the upper support plate 31 is connected to the top end of the base plate 4 through the buffer spring 37.

[0025] Multiple second fixing blocks 41 are fixedly installed on both sides of the top of the substrate 4. The second fixing blocks 41 are perpendicular to the substrate 4. The second fixing blocks 41 are rotatably connected to the other side of the hydraulic rod 36 through the second rotating column 42. A support column 43 is fixedly installed in the middle of the top of the substrate 4. The support column 43 is in the same row as the upper support plate 31. In addition, multiple auxiliary buffer columns 44 are installed at the bottom of the substrate 4. The auxiliary buffer columns 44 are connected to the lower support plate 45 through the damper 46. The bottom end of the lower support plate 45 is fixed to the bottom plate inside the mounting groove 22 at the top of the turntable 2. The auxiliary buffer columns 44 are provided with grooves. The top plate inside the groove contacts the top plate of the damper 46. The damper 46 is located inside the lower support plate 45. The size of the damper 46 is smaller than the size of the lower support plate 45. There is a gap between the outer side of the damper 46 and the inner wall of the lower support plate 45.

[0026] In this embodiment, during use, bolts are passed through the threaded through holes 12 on the outer side of the base plate 11 and the threaded holes 21 on both sides of the turntable 2 to fix the cab 1 to the top of the turntable 2. Then, bolts are passed through the threaded through holes 12 in the middle of the base plate 11 and the buffer threaded holes 32 on the upper support plate 31 of the buffer mechanism 3 to fix the buffer mechanism 3 to both sides of the bottom end of the base plate 11. When the excavator cab 1 is subjected to external forces during operation, causing the bolts connecting the cab 1 to loosen, the cab 1 will shake. Since the base plate 11 is located above the turntable 2, the shaking force of the cab 1 will be transmitted to the buffer mechanism 3 through the base plate 11 of the cab 1. At this time, the upper support plate 31 on one side of the buffer mechanism 3 will move, and drive the hydraulic rod 36 to move up and down on the surface of the first rotating column 35 and the second rotating column 42. The buffer spring 37 connected between the bottom end of the upper support plate 31 and the base plate 4 will reciprocate up and down to buffer the shaking of the cab 1 and prevent the cab 1 from tipping over. When the shaking is large, the upper support plate 31 will move a relatively large distance. Since the height of the support column 43 is greater than the height of the turntable 2, the bottom of the upper support plate 31 will touch the top of the middle support column 43 of the base plate 4. The support column 43 will provide a guiding support for the upper support plate 31. At this time, the buffer spring 37 and the hydraulic rods 36 on both sides cannot completely buffer the shaking. At this time, the force will be transmitted to the auxiliary buffer column 44 through the base plate 4. Since the auxiliary buffer column 44 is connected to the lower support plate 45 through the damper 46, and there is a gap between the outer side of the damper 46 and the lower support plate 45, the base plate 4 will move up and down on the surface of the lower support plate 45 through the auxiliary buffer column 44. Because the damper 46 is elastic and can dissipate the force generated by the base plate 4 by converting it into other forms of energy, it can provide secondary buffering for the shaking of the base plate 4 and the upper support plate 31, preventing the cab 1 from overturning. In addition, the protective nets 23 on both sides of the turntable 2 can prevent the buffer mechanism 3 from being damaged.

[0027] In this way, the buffer mechanism 3 can absorb external forces, prevent the connecting bolts of the turntable 2 from breaking due to excessive force, prevent the excavator cab 1 from overturning, and ensure the safety of the driver.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An excavator cab with an anti-rollover buffer structure, comprising a cab (1), characterized in that, The bottom of the cab (1) is connected to a turntable (2), and the top of the turntable (2) is provided with an installation groove (22). Protective nets (23) are installed on the left and right sides of the installation groove (22). A base plate (11) is horizontally installed in the lower middle part of the cab (1). The base plate (11) is located above the turntable (2). Buffer mechanisms (3) are symmetrically installed on the left and right sides of the bottom of the base plate (11). The buffer mechanisms (3) are located in the installation groove (22) on the turntable (2). A base plate (4) is movably connected to the bottom of the buffer mechanism (3). The buffer mechanism (3) has an upper support plate (31) on one side. The upper support plate (31) is fixed to the bottom plate (11) directly below the threaded through hole (12) in the middle through hole (32) through the buffer threaded hole (32). A connecting plate (33) is fixedly installed on the left and right sides of one side surface of the upper support plate (31). Multiple first fixing blocks (34) are fixedly installed at both ends of the outer side of the connecting plate (33). The corresponding two first fixing blocks (34) are rotatably connected to one side of the hydraulic rod (36) through the first rotating column (35).

2. The excavator cab with an anti-rollover buffer structure according to claim 1, characterized in that, The base plate (11) has multiple threaded through holes (12).

3. The excavator cab with an anti-rollover buffer structure according to claim 1, characterized in that, The turntable (2) has threaded holes (21) on both sides of its top end, and the threaded holes (21) correspond to the threaded through holes (12) on the outer side of the base plate (11).

4. The excavator cab with an anti-rollover buffer structure according to claim 1, characterized in that, The outer side of the bottom end of the upper support plate (31) is fixedly connected to one side of multiple buffer springs (37).

5. The excavator cab with an anti-rollover buffer structure according to claim 1, characterized in that, The top left and right ends of the substrate (4) are fixedly installed with second fixing blocks (41), and the second fixing blocks (41) are rotatably connected to the other side of the hydraulic rod (36) through the second rotating column (42).

6. The excavator cab with an anti-rollover buffer structure according to claim 4, characterized in that, The outer side of the substrate (4) is fixedly connected to the other side of the spring (37), and a support column (43) is fixedly installed at the center of the top of the substrate (4).

7. The excavator cab with an anti-rollover buffer structure according to claim 5, characterized in that, Multiple auxiliary buffer pillars (44) are connected below the substrate (4). The bottom end of the auxiliary buffer pillars (44) is connected to a lower support plate (45) through a damper (46). The bottom end of the lower support plate (45) is in contact with the bottom end of the mounting groove (22).

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