Miniature excavator chassis

Abstract

The utility model discloses a miniature excavator chassis, and particularly relates to the field of excavator chassis, the miniature excavator chassis comprises a chassis body, both sides of the chassis body are fixedly provided with crawler belts, the top of the chassis body is fixedly connected with a turntable, and the bottom of the chassis body is provided with a buffer assembly. A spraying assembly is arranged on one side of the chassis body, the buffering assembly comprises four first springs fixedly connected with the bottom of the chassis body, and by arranging the buffering assembly, when the chassis body is prone to being collided by the ground or other objects, a protection plate is extruded; and the protective plate pushes the piston on the round rod to slide on the inner wall of the round groove block, so that internal air is extruded to enter the air bag through the connecting pipe, the air bag performs buffering operation on the chassis body, direct collision of the chassis body can be effectively avoided, the damage probability is reduced, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator chassis, in particular to a mini-excavator chassis. Background Art

[0002] The excavator chassis is a core component of the excavator. It bears the overall weight of the excavator and enables the excavator to move and operate through a complex system. The chassis system includes key components such as track rollers, drive sprockets, idlers, carrier rollers, and tracks. These components work together to ensure the stable and efficient operation of the excavator under various working conditions. The track rollers play a supporting role, the drive sprockets are responsible for driving the tracks, the idlers and carrier rollers respectively play the roles of guiding and supporting the tracks, and the tracks provide the basis for the excavator to move.

[0003] The inventor found in daily work that during the actual use of the excavator chassis, the excavator chassis is prone to collide with the ground or other objects, which easily causes damage to the excavator chassis, increases the damage rate of the excavator chassis during use, reduces the service life of the excavator chassis, and increases the maintenance cost of the excavator chassis.

[0004] In order to solve the problem of inconvenient installation and maintenance of electronic components, the prior art is that the excavator chassis is prone to collide with the ground or other objects, which easily causes damage to the excavator chassis, increases the damage rate of the excavator chassis during use, reduces the service life of the excavator chassis, and increases the maintenance cost of the excavator chassis. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem that during the use process, the excavator chassis is prone to collide with the ground or other objects, which easily causes damage to the excavator chassis, increases the damage rate of the excavator chassis during use, reduces the service life of the excavator chassis, and increases the maintenance cost of the excavator chassis, and to propose a mini-excavator chassis technology.

[0006] To achieve the above object, the utility model adopts the following technical solution: A micro-excavator chassis, including a chassis body, both sides of the chassis body are fixedly installed with crawlers, the top of the chassis body is fixedly connected with a turntable, a buffer assembly is arranged at the bottom of the chassis body, a spraying assembly is arranged on one side of the chassis body, the buffer assembly includes four first springs fixedly connected to the bottom of the chassis body, one ends of the four first springs are jointly fixedly connected with a protection plate, an airbag is fixedly connected to the bottom of the chassis body, four circular groove blocks are fixedly connected to the bottom of the chassis body, pistons are slidably connected to the inner walls of the four circular groove blocks, one sides of the four pistons are fixedly connected with round rods slidably connected to the circular groove blocks, one ends of the four round rods are fixedly connected with one side of the protection plate, and connecting pipes communicating with the inner wall of the airbag are fixedly connected to the inner surfaces of the four circular groove blocks.

[0007] The effects achieved by the above components are as follows: By setting the buffer assembly, when the chassis body is prone to collision with the ground or other objects, the protection plate is squeezed, so that the protection plate pushes the pistons on the round rods to slide on the inner walls of the circular groove blocks, and then squeezes the internal air to enter the airbag through the connecting pipe, so that the airbag buffers the chassis body, and thus can effectively avoid the direct collision of the chassis body, reduce the probability of damage, improve the service life, and reduce the maintenance cost.

[0008] Preferably, an L-shaped plate is fixedly connected to one side of the protection plate, and a number of reinforcing plates are movably installed on the inner wall of the L-shaped plate.

[0009] The effects achieved by the above components are as follows: By setting the L-shaped plate and the reinforcing plates, the reinforcing plates can be installed on the inner wall of the L-shaped plate, so that the reinforcing plates can improve the strength of the protection plate and the protection effect.

[0010] Preferably, circular grooves are formed on one sides of a number of the L-shaped plates, dovetail slide bars are fixedly connected to the inner walls of the circular grooves, and clamping arc surface blocks are slidably connected to one ends of the dovetail slide bars.

[0011] The effects achieved by the above components are as follows: By setting the clamping arc surface blocks and the dovetail slide bars, the clamping arc surface blocks can slide at one ends of the dovetail slide bars, and then cooperate with other components to play a role.

[0012] Preferably, second springs are sleeved on the outer surfaces of a number of the dovetail slide bars, and two ends of the second springs are respectively fixedly connected with the inner wall of the circular groove and one side of the clamping arc surface block.

[0013] The effects achieved by the above components are as follows: By setting the second springs, the clamping arc surface blocks can be reset under the compression reaction force of the second springs.

[0014] Preferably, a plurality of clamping holes are formed in one side of the L-shaped plate, and the inner surface size and shape of the plurality of clamping holes are adapted to the outer surface size and shape of the clamping arc surface block.

[0015] The effect achieved by the above components is that by providing the clamping holes, the clamping arc surface block can be inserted into the clamping holes, and then the reinforcing plate can be fixed.

[0016] Preferably, the spraying assembly includes a placement box fixedly connected to one side of the chassis body, a spraying pipe fixedly connected to one side of the placement box and communicating with the inner wall of the placement box, and an oil pump fixedly connected to one end of the spraying pipe.

[0017] The effect achieved by the above components is that by providing the spraying assembly, during the use of the turntable, the lubricating oil in the placement box can be pumped out by the oil pump, and the lubricating oil can be sprayed on the turntable through the spraying pipe, and then lubrication operation can be carried out, which can effectively improve the service life of the turntable, reduce the maintenance times, and facilitate the use of the user.

[0018] Preferably, a fixing block is fixedly connected to one side of the placement box, an arc-shaped panel is fixedly connected to one side of the fixing block, and a plurality of brushes are fixedly connected to one side of the arc-shaped panel.

[0019] The effect achieved by the above components is that by providing the arc-shaped panel and the brushes, the sprayed lubricating oil can be indirectly applied to the outer surface of the turntable through the brushes.

[0020] Preferably, a round hole is formed in one side of the placement box, and a plug is inserted and connected to the inner wall of the round hole.

[0021] The effect achieved by the above components is that by providing the round hole and the plug, the lubricating oil in the placement box can be replenished after use.

[0022] In summary, the beneficial effects of the present utility model are as follows:

[0023] 1. By providing the buffer assembly, when the chassis body is prone to collision by the ground or other objects, the protection plate is squeezed, so that the protection plate pushes the piston on the round rod to slide on the inner wall of the round groove block, and then the internal air is squeezed into the airbag through the connecting pipe, so that the airbag buffers the chassis body, and then the direct collision of the chassis body can be effectively avoided, the damage probability can be reduced, the service life can be improved, and the maintenance cost can be reduced.

[0024] 2. By providing the spraying assembly, during the use of the turntable, the lubricating oil in the placement box can be pumped out by the oil pump, and the lubricating oil can be sprayed on the turntable through the spraying pipe, and then lubrication operation can be carried out, which can effectively improve the service life of the turntable, reduce the maintenance times, and facilitate the use of the user. Description of the Drawings

[0025] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;

[0026] Figure 2 It is a schematic diagram of the structure of the chassis body of the present utility model;

[0027] Figure 3 It is a schematic diagram of the piston cross-section structure of the present utility model;

[0028] Figure 4 It is a schematic diagram of the reinforcing plate structure of the present utility model;

[0029] Figure 5 It is a schematic diagram of the cross-section structure of the spraying assembly of the present utility model;

[0030] Legend description: 1. Chassis body; 2. Crawler; 3. Turntable; 4. Buffer assembly; 41. First spring; 42. Protection plate; 43. Piston; 44. Round rod; 45. Connecting pipe; 46. Airbag; 47. L-shaped plate; 48. Reinforcing plate; 49. Clamping hole; 410. Circular groove; 411. Dovetail slide bar; 412. Second spring; 413. Clamping arc surface block; 414. Round groove block; 5. Spraying assembly; 51. Placing box; 52. Spraying pipe; 53. Oil pump; 54. Fixed block; 55. Arc panel; 56. Brush; 57. Round hole; 58. Plug. Detailed Implementation Manner

[0031] Example 1, as Figures 1-5 shown, the present utility model provides a technical solution: a mini-excavator chassis, including a chassis body 1, crawlers 2 are fixedly installed on both sides of the chassis body 1, a turntable 3 is fixedly connected to the top of the chassis body 1, a buffer assembly 4 is arranged at the bottom of the chassis body 1, and a spraying assembly 5 is arranged on one side of the chassis body 1.

[0032] During use, when the chassis body 1 is impacted by the buffer assembly 4, buffer operation can be performed on the bottom of the chassis body 1, effectively avoiding direct collision of the chassis body 1, reducing the probability of damage, increasing the service life, reducing the maintenance cost. At the same time, the spraying assembly 5 sprays lubricating oil on the turntable 3, and then lubricates the operation, which can effectively increase the service life of the turntable 3, reduce the number of maintenance times, and facilitate the user to use.

[0033] Refer to Figure 3 and Figure 4As shown in the figure, in this embodiment: The buffer assembly 4 includes four first springs 41 fixedly connected to the bottom of the chassis body 1. One end of the four first springs 41 is fixedly connected to a protection plate 42 together. An airbag 46 is fixedly connected to the bottom of the chassis body 1. Four circular groove blocks 414 are fixedly connected to the bottom of the chassis body 1. A piston 43 is slidably connected to the inner wall of each of the four circular groove blocks 414. A circular rod 44 slidably connected to the circular groove block 414 is fixedly connected to one side of each of the four pistons 43. One end of the four circular rods 44 is fixedly connected to one side of the protection plate 42. A connecting pipe 45 communicating with the inner wall of the airbag 46 is fixedly connected to the inner surface of each of the four circular groove blocks 414. An L-shaped plate 47 is fixedly connected to one side of the protection plate 42. A number of reinforcing plates 48 are movably installed inside the L-shaped plate 47. By providing the L-shaped plate 47 and the reinforcing plates 48, the reinforcing plates 48 can be installed inside the L-shaped plate 47, so that the reinforcing plates 48 can improve the strength of the protection plate 42 and enhance the protection effect. A circular groove 410 is provided on one side of each of the several L-shaped plates 47. A dovetail slide bar 411 is fixedly connected to the inner wall of each of the several circular grooves 410. A clamping arc surface block 413 is slidably connected to one end of each of the several dovetail slide bars 411. By providing the clamping arc surface block 413 and the dovetail slide bar 411, the clamping arc surface block 413 can slide at one end of the dovetail slide bar 411, and then cooperate with other components to play a role. A second spring 412 is sleeved on the outer surface of each of the several dovetail slide bars 411. Both ends of the several second springs 412 are fixedly connected to the inner wall of the circular groove 410 and one side of the clamping arc surface block 413 respectively. By providing the second spring 412, the clamping arc surface block 413 can be reset under the compression reaction force of the second spring 412. A number of clamping holes 49 are provided on one side of the L-shaped plate 47. The size and shape of the inner surface of the several clamping holes 49 are adapted to the size and shape of the outer surface of the clamping arc surface block 413. By providing the clamping holes 49, the clamping arc surface block 413 can be inserted into the clamping holes 49, and then the reinforcing plates 48 can be fixed.

[0034] Referring to Figure 5As shown in the figure, in this embodiment: The spraying assembly 5 includes a placement box 51 fixedly connected to one side of the chassis body 1. One side of the placement box 51 is fixedly connected to a spraying pipe 52 communicated with the inner wall of the placement box 51. One end of the spraying pipe 52 is fixedly connected to an oil pump 53. By setting the spraying assembly 5, during the use of the turntable 3, the lubricating oil in the placement box 51 can be pumped by the oil pump 53, so that the lubricating oil can be sprayed on the turntable 3 through the spraying pipe 52, and then lubrication operation can be carried out. Furthermore, the service life of the turntable 3 can be effectively improved, the maintenance frequency can be reduced, and it is convenient for the user to use. One side of the placement box 51 is fixedly connected to a fixing block 54. One side of the fixing block 54 is fixedly connected to an arc-shaped panel 55. One side of the arc-shaped panel 55 is fixedly connected to a number of brushes 56. By setting the arc-shaped panel 55 and the brushes 56, the sprayed lubricating oil can be indirectly applied to the outer surface of the turntable 3 through the brushes 56. One side of the placement box 51 is provided with a round hole 57. The inner wall of the round hole 57 is inserted and connected with a plug 58. By setting the round hole 57 and the plug 58, the lubricating oil in the placement box 51 can be replenished after use.

[0035] Working principle: During use, the reinforcing plate 48 is pushed into the L-shaped plate 47. At this time, the clamping arc-shaped block 413 on the L-shaped plate 47 is squeezed, so that the clamping arc-shaped block 413 squeezes the second spring 412, making the second spring 412 in a compressed state. When the clamping arc-shaped block 413 is aligned with the clamping hole 49, at this time, the clamping arc-shaped block 413 will reset under the compression reaction of the second spring 412, and then the fixing operation of the reinforcing plate 48 is carried out. At the same time, when the chassis body 1 is easily collided with the ground or other objects, the protection plate 42 is squeezed, so that the protection plate 42 pushes the piston 43 on the round rod 44 to slide on the inner wall of the round groove block 414, and then squeezes the air inside to enter the airbag 46 through the connecting pipe 45, so that the airbag 46 buffers the chassis body 1. During the use of the turntable 3, the lubricating oil in the placement box 51 can be pumped by the oil pump 53, so that the lubricating oil can be sprayed on the turntable 3 through the spraying pipe 52, and then lubrication operation can be carried out. The sprayed lubricating oil can be indirectly applied to the outer surface of the turntable 3 through the brushes 56.

Claims

1. A mini excavator chassis, comprising a chassis body (1), characterized in that: Tracks (2) are fixedly mounted on both sides of the chassis body (1); a turntable (3) is fixedly connected to the top of the chassis body (1); a buffer assembly (4) is arranged at the bottom of the chassis body (1); a spray assembly (5) is arranged on one side of the chassis body (1); the buffer assembly (4) comprises four first springs (41) fixedly connected to the bottom of the chassis body (1); one end of the four first springs (41) is commonly fixedly connected to a protective plate (42); the bottom of the chassis body (1) is fixedly connected to the spray assembly (5); The bottom of the chassis body (1) is fixedly connected to four circular groove blocks (414), the inner walls of the four circular groove blocks (414) are slidably connected to pistons (43), one side of the four pistons (43) is fixedly connected to a round rod (44) slidably connected to the circular groove block (414), one end of the four circular rods (44) is fixedly connected to one side of the protective plate (42), and the inner surfaces of the four circular groove blocks (414) are fixedly connected to a connecting pipe (45) connected to the inner wall of the airbag (46).

2. A mini excavator chassis according to claim 1, characterized in that: An L-shaped plate (47) is fixedly connected to one side of the protection plate (42), and a plurality of reinforcing plates (48) are movably mounted on the inner wall of the L-shaped plate (47).

3. A mini excavator chassis according to claim 2, characterized in that: A circular groove (410) is formed on one side of the plurality of L-shaped plates (47), a dovetail slide bar (411) is fixedly connected to the inner wall of the plurality of circular grooves (410), and a locking arc block (413) is slidably connected to one end of the plurality of dovetail slide bars (411).

4. A mini excavator chassis according to claim 3, characterized in that: The outer surfaces of the plurality of dovetail slide bars (411) are sleeved with second springs (412), and the two ends of the plurality of second springs (412) are respectively fixedly connected to the inner wall of the circular groove (410) and one side of the locking arc surface block (413).

5. A mini excavator chassis according to claim 4, characterized in that: A plurality of locking holes (49) are provided on one side of the L-shaped plate (47), and the size and shape of the inner surfaces of the plurality of locking holes (49) are adapted to the size and shape of the outer surface of the locking arc surface block (413).

6. A mini excavator chassis according to claim 1, characterized in that: The spray assembly (5) comprises a placement box (51) fixedly connected to one side of the chassis body (1); a spray pipe (52) in communication with the inner wall of the placement box (51) is fixedly connected to one side of the placement box (51); and an oil pump (53) is fixedly connected to one end of the spray pipe (52).

7. A mini excavator chassis according to claim 6, characterized in that: A fixed block (54) is fixedly connected to one side of the placement box (51), a curved panel (55) is fixedly connected to one side of the fixed block (54), and a plurality of brushes (56) are fixedly connected to one side of the curved panel (55).

8. The mini excavator chassis according to claim 6, characterized in that: A circular hole (57) is opened on one side of the placement box (51), and a sealing plug (58) is inserted and connected to the inner wall of the circular hole (57).

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