Low-clearance excavator bucket head structure

Abstract

The utility model discloses a low-clearance excavator bucket head structure which comprises a bucket head support, a shell bucket rotationally connected with one end of the bucket head support and an extension assembly fixedly arranged at the other end of the bucket head support. The extending assembly comprises a connecting support fixedly connected with the bucket head support and a sliding rail fixedly arranged on the connecting support, the extending direction of the sliding rail is perpendicular to the axis direction of a rotating shaft of the shell bucket, and the sliding rail is in sliding connection with a digging arm. And an oil cylinder for driving the bucket head support to slide is arranged between the digging arm and the bucket head support. The low-clearance excavator bucket head is reasonable in structural design, the horizontal extension length of the bucket head is increased, and the depth operation range of an excavator is enlarged.

Description

Technical Field

[0001] This utility model relates to the field of excavator bucket technology, and in particular to a low headroom excavator bucket structure. Background Technology

[0002] Currently, excavators are developing relatively rapidly and have become one of the most important construction machines. An excavator is a machine that uses a bucket to dig materials. The materials excavated by excavators are generally soil, coal, silt, and pre-loosened soil and rock. In existing technology, excavators can also be used to excavate and clear river channels. However, excavator booms are mostly two-section booms, and their extension range is limited by the excavator's own movement. This necessitates repeated adjustments to the excavator's position, which severely impacts its digging efficiency.

[0003] Therefore, it is necessary to improve the bucket structure of low headroom excavators in the existing technology. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a low headroom excavator bucket structure that increases the horizontal extension length of the bucket and expands the excavator's depth of operation.

[0005] To achieve the above-mentioned technical effects, the technical solution of this utility model is as follows: a low headroom excavator bucket structure, including a bucket support, a shell bucket rotatably connected to one end of the bucket support, and an extension assembly fixedly disposed at the other end of the bucket support; the extension assembly includes a connecting support fixedly connected to the bucket support and a slide rail fixedly disposed on the connecting support, the extension direction of the slide rail being perpendicular to the rotation axis of the shell bucket, the slide rail being slidably connected to the excavator arm, and a hydraulic cylinder for driving the bucket support to slide is disposed between the excavator arm and the bucket support.

[0006] According to one embodiment of the present invention, the slide rail is provided in four sets, and the four sets of slide rail are respectively located at the four corners of the connecting support.

[0007] According to one embodiment of the present invention, the slide rail has an L-shaped cross-section.

[0008] According to one embodiment of the present invention, the sliding contact surface of the slide rail is fixedly provided with a wear-resistant layer.

[0009] According to one embodiment of the present invention, a support plate is fixedly arranged between the four sets of slide rails.

[0010] According to one embodiment of the present invention, the support plate is provided with a through hole through which the piston rod of the hydraulic cylinder passes.

[0011] According to one embodiment of the present invention, wing plates are fixedly provided on both sides of the inner wall of the shell hopper, and a reinforcing plate is fixedly provided between the two wing plates.

[0012] According to one embodiment of the present invention, a baffle for shielding the rotating shaft of the shell hopper is fixedly provided inside the shell hopper, and a plurality of reinforcing ribs are fixedly provided on the outer surface of the baffle.

[0013] According to one embodiment of the present invention, the excavation end of the shell bucket is fixedly provided with a chamfered wall to facilitate excavation.

[0014] The advantages and beneficial effects of this utility model are as follows: The bucket head structure of this utility model is reasonably designed. By setting a connecting support and a slide rail on the bucket head support, the bucket head support can be driven to extend by a hydraulic cylinder, thereby increasing the horizontal extension length and expanding the excavator's depth of operation. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the low headroom excavator bucket structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the low headroom excavator bucket structure of this utility model (from another perspective);

[0017] Figure 3 This is a schematic diagram of the structure of a clam shell;

[0018] Figure 4 This is a schematic diagram of the baffle structure;

[0019] In the diagram: 1. Bucket head support; 2. Shell bucket; 21. Wing plate; 22. Reinforcing plate; 23. Baffle; 24. Reinforcing rib; 25. Chamfered wall; 3. Connecting support; 4. Slide rail; 41. Wear-resistant layer; 5. Support plate; 51. Through hole. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example

[0022] like Figure 1-4 As shown, the low headroom excavator bucket structure of the embodiment includes a bucket head support 1, a shell bucket 2 rotatably connected to one end of the bucket head support 1, and an extension assembly fixedly disposed at the other end of the bucket head support 1; the extension assembly includes a connecting support 3 fixedly connected to the bucket head support 1 and a slide rail 4 fixedly disposed on the connecting support 3, the extension direction of the slide rail 4 being perpendicular to the rotation axis of the shell bucket 2, the slide rail 4 being slidably connected to the excavator arm, and a hydraulic cylinder for driving the bucket head support 1 to slide is disposed between the excavator arm and the bucket head support 1.

[0023] According to one embodiment of the present invention, the slide rail 4 is provided in four sets, and the four sets of slide rail 4 are respectively located at the four corners of the connecting support 3.

[0024] This design improves the connection strength between the bucket head support 1 and the excavator arm.

[0025] According to one embodiment of the present invention, the slide rail 4 has an L-shaped cross-section.

[0026] This design increases the sliding contact area, further improving the connection strength between the bucket head support 1 and the excavator arm.

[0027] According to one embodiment of the present invention, the sliding contact surface of the slide rail 4 is fixedly provided with a wear-resistant layer 41.

[0028] This design improves the service life of the bucket head support 1.

[0029] According to one embodiment of the present invention, a support plate 5 is fixedly arranged between the four sets of slide rails 4.

[0030] This design improves the stability of slide rail 4.

[0031] According to one embodiment of the present invention, the support plate 5 is provided with a through hole 51 through which the piston rod of the oil cylinder passes.

[0032] According to one embodiment of the present invention, wing plates 21 are fixedly provided on both sides of the inner wall of the shell hopper 2, and a reinforcing plate 22 is fixedly provided between the two wing plates 21.

[0033] This design improves the strength of the sidewall connection of the shell 2.

[0034] According to one embodiment of the present invention, a baffle 23 for shielding the rotating shaft of the shell hopper 2 is fixedly provided inside the shell hopper 2, and a plurality of reinforcing ribs 24 are fixedly provided on the outer surface of the baffle 23.

[0035] According to one embodiment of the present invention, the excavation end of the shell hopper 2 is fixedly provided with a chamfered wall 25 to facilitate excavation.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A low headroom excavator bucket structure, characterized in that, The device includes a bucket head support (1), a shell bucket (2) rotatably connected to one end of the bucket head support (1), and an extension assembly fixedly disposed at the other end of the bucket head support (1). The extension assembly includes a connecting support (3) fixedly connected to the bucket head support (1) and a slide rail (4) fixedly disposed on the connecting support (3). The extension direction of the slide rail (4) is perpendicular to the rotation axis of the shell bucket (2). The slide rail (4) is slidably connected to the digging arm. A hydraulic cylinder for driving the bucket head support (1) to slide is disposed between the digging arm and the bucket head support (1).

2. The low headroom excavator bucket structure according to claim 1, characterized in that, The slide rail (4) is provided in four sets, and the four sets of slide rail (4) are respectively located at the four corners of the connecting support (3).

3. The low headroom excavator bucket structure according to claim 1, characterized in that, The slide rail (4) has an L-shaped cross-section.

4. The low headroom excavator bucket structure according to claim 3, characterized in that, The sliding contact surface of the slide rail (4) is fixedly provided with a wear-resistant layer (41).

5. The low headroom excavator bucket structure according to claim 2, characterized in that, Support plates (5) are fixedly installed between the four sets of slide rails (4).

6. The low headroom excavator bucket structure according to claim 5, characterized in that, The support plate (5) is provided with a through hole (51) through which the piston rod of the oil cylinder passes.

7. The low headroom excavator bucket structure according to claim 1, characterized in that, The inner walls of the shell hopper (2) are fixedly provided with wing plates (21) on both sides, and a reinforcing plate (22) is fixedly provided between the two wing plates (21).

8. The low headroom excavator bucket structure according to claim 1, characterized in that, The shell hopper (2) is fixedly provided with a baffle (23) for shielding the rotating shaft of the shell hopper (2), and a number of reinforcing ribs (24) are fixedly provided on the outer surface of the baffle (23).

9. The low headroom excavator bucket structure according to claim 1, characterized in that, The excavation end of the shell hopper (2) is fixedly provided with a chamfered wall (25) to facilitate excavation.

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