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CN-224227878-U - Reinforced excavator movable arm

CN224227878UCN 224227878 UCN224227878 UCN 224227878UCN-224227878-U

Abstract

The utility model discloses a reinforced excavator movable arm which comprises a movable arm body, wherein hinge holes are formed in two ends of the movable arm body, an ear plate is fixedly arranged at the top of the movable arm body, side plates are fixedly arranged at the front end and the rear end of a bending part of the movable arm body, and a main reinforcing rib is fixedly arranged at the bottom of the bending part of the movable arm body. According to an embodiment of the present disclosure, through setting up curb plate, main strengthening rib, riser, swash plate and skeleton, through the department installation curb plate of buckling at the movable arm body, can promote its structural strength, through the design of main strengthening rib, can further improve the supporting effect to movable arm body department of buckling, simultaneously, swash plate and riser enclose into a plurality of triangle areas, because triangle-shaped has the characteristic of stability, thereby can promote riser bulk strength, through the design of skeleton cellular, support the movable arm body with the riser cooperation, can effectively cope with stress concentration phenomenon, promote the life of movable arm body.

Inventors

  • BAI LIGUO
  • ZHANG MAOYUN

Assignees

  • 山东汉东机械有限公司

Dates

Publication Date
20260512
Application Date
20250523

Claims (6)

  1. 1. The utility model provides a strenghthened type excavator movable arm, includes movable arm body (1), hinge hole (2) have all been seted up at the both ends of movable arm body (1), the top fixed mounting of movable arm body (1) has otic placode (11), wherein both ends all fixed mounting have curb plate (3) around movable arm body (1) kink, the bottom fixed mounting of movable arm body (1) kink has main strengthening rib (4), the kink fixed mounting of movable arm body (1) inner wall has riser (5), fixedly connected with swash plate (6) on riser (5), it has skeleton (7) to fill between swash plate (6) and riser (5).
  2. 2. The reinforced excavator movable arm according to claim 1, wherein auxiliary reinforcing ribs (8) are fixedly arranged on two sides of the main reinforcing rib (4), and the top of each auxiliary reinforcing rib (8) is fixedly connected to the bottom of the movable arm body (1).
  3. 3. A reinforced excavator boom according to claim 1, characterized in that the two sides of the surface of the boom body (1) are fixedly provided with flitch plates (9), and the flitch plates (9) are fixedly provided with reinforcing rings (10) positioned at the hinge holes (2).
  4. 4. The reinforced excavator movable arm according to claim 1, wherein the number of the lug plates (11) is two, a mounting plate (12) is fixedly connected between two sides of the lug plates (11), and the bottom of the mounting plate (12) is fixedly connected to the movable arm body (1).
  5. 5. A reinforced excavator boom according to claim 1, wherein said sloping plate (6) is arranged between two risers (5), said sloping plate (6) and risers (5) enclosing a triangular shape.
  6. 6. A reinforced excavator boom according to claim 1, wherein said skeleton (7) is fixedly mounted between the sloping plate (6) and the riser (5), said skeleton (7) being entirely cellular.

Description

Reinforced excavator movable arm Technical Field The utility model relates to the technical field of excavators, in particular to a reinforced movable arm of an excavator. Background The movable arm of the excavator is an important part for connecting the excavating bucket and the machine body, is usually formed by a plurality of sections of steel arms, can flexibly stretch and rotate, bears important tasks of excavating, grabbing and carrying operations, can adjust angles and lengths according to working requirements, is provided with a hydraulic cylinder and a hydraulic pipeline, is driven by a hydraulic system to provide powerful power and accurate control, is widely applied to the fields of engineering construction, mining and the like, is a core component of heavy machinery, and bears important operation functions and efficiency requirements. However, the prior art has the problems that the stress condition is complex in the working process of the movable arm, the requirement on the mechanical structure is high, the stress is easily concentrated at the bending part of the movable arm under the action of the load with high intensity such as the earthwork operation of the conventional movable arm, so that the bending part of the movable arm is easy to crack, and the service life of the movable arm is shortened. Disclosure of utility model It is an object of the present utility model to provide a new solution for a reinforced excavator boom. According to a first aspect of the utility model, there is provided a reinforced excavator movable arm, which comprises a movable arm body, wherein both ends of the movable arm body are provided with hinge holes, the top of the movable arm body is fixedly provided with an ear plate, both front and rear ends of a bending part of the movable arm body are fixedly provided with side plates, the bottom of the bending part of the movable arm body is fixedly provided with a main reinforcing rib, the bending part of the inner wall of the movable arm body is fixedly provided with a vertical plate, the vertical plate is fixedly connected with a sloping plate, and a framework is filled between the sloping plate and the vertical plate. Optionally, the both sides of main strengthening rib are all fixed mounting has vice strengthening rib, the top fixed connection of vice strengthening rib is in the bottom of movable arm body. Optionally, the both sides on movable arm body surface are all fixed mounting has the flitch, fixed mounting has the strengthening ring that is located hinge hole department on the flitch. Optionally, the quantity of otic placode is two, two fixedly connected with assembly plate between the both sides of otic placode, the bottom fixed connection of assembly plate is on the movable arm body. Optionally, the sloping plate is arranged between two risers, and the sloping plate and the risers enclose a triangle. Optionally, the framework is fixedly installed between the inclined plate and the vertical plate, and the whole framework is honeycomb-shaped. According to an embodiment of the present disclosure, through setting up curb plate, main strengthening rib, riser, swash plate and skeleton, through the department installation curb plate of buckling at the movable arm body, can promote its structural strength, through the design of main strengthening rib, can further improve the supporting effect to movable arm body department of buckling, simultaneously, swash plate and riser enclose into a plurality of triangle areas, because triangle-shaped has the characteristic of stability, thereby can promote riser bulk strength, through the design of skeleton cellular, support the movable arm body with the riser cooperation, can effectively cope with stress concentration phenomenon, promote the life of movable arm body. Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings. Drawings The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. FIG. 1 is a schematic view of the overall structure of a reinforced excavator boom in one embodiment; FIG. 2 is a schematic bottom view of a reinforced excavator boom in one embodiment; FIG. 3 is a schematic top view of a reinforced excavator boom in one embodiment; FIG. 4 is a schematic cross-sectional view of the interior of a reinforced excavator boom in one embodiment; Fig. 5 is a schematic view showing a structure of connection between a riser and a swash plate of a boom of a reinforced excavator according to an embodiment. The device is characterized by comprising a movable arm body 1, a hinge hole 2, a side plate 3, a main reinforcing rib 4, a vertical plate 5, a sloping plate 6, a slopin