An extra-large bucket for excavators

Abstract

This utility model discloses an ultra-large excavator bucket, including a bucket body with ear plates on the body. A bushing is installed inside the ear plate hole of the ear plate. The bushing is divided into multiple unit bushing blocks along its axial direction, with a clearance fit between adjacent unit bushing blocks. A limit component is provided between the unit bushing block and the inner wall of the ear plate hole. This utility model divides the bushing into multiple unit bushing blocks, making each unit bushing block smaller and lighter, effectively improving the convenience of bushing disassembly and installation, and enhancing the ease of bucket maintenance. Furthermore, each unit bushing block can be replaced individually according to its wear level, eliminating the need to replace the entire bushing at once, thus reducing the bucket maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of excavator bucket technology, and in particular relates to an ultra-large bucket for excavators. Background Technology

[0002] The excavator bucket is a key working device of the excavator, which comes into direct contact with materials such as soil and rocks and is used for excavation, loading and other operations.

[0003] Excavator bucket bushings are critical components installed between the bucket ear plates and the pin shaft, playing crucial roles in isolation, protection, wear reduction, and guidance. Traditionally, the bushings and ear plate holes are mostly interference fits. Installation requires pressing in, and disassembly requires tools to forcefully knock them out. If the bushing is severely worn or stuck to the ear plate hole (e.g., due to rust or metal seizing), the disassembly process may damage the ear plate hole wall, rendering the ear plate unusable. Furthermore, replacement requires complete removal, which is time-consuming, especially for large buckets, affecting equipment uptime.

[0004] Therefore, it is necessary to improve the buckets in the existing technology. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide an extra-large bucket for excavators, which improves the convenience of bushing replacement.

[0006] To achieve the above objectives, the specific technical solution of the ultra-large excavator bucket of this utility model is as follows: An extra-large bucket for excavators includes a main body of the bucket, an ear plate provided on the main body, a bushing provided in the ear plate hole of the ear plate, the bushing being equally divided into multiple unit bushing blocks along its own axis, a clearance fit between two adjacent unit bushing blocks, and a limit component provided between the unit bushing block and the inner wall of the ear plate hole.

[0007] Preferably, both ends of the ear plate hole are provided with annular reinforcing portions in the circumferential direction.

[0008] Preferably, the reinforcing part has a through hole along its own radial direction, and the through hole is disposed adjacent to the ear plate.

[0009] Preferably, the limiting component includes a slot formed on the inner wall of the ear plate hole along the axial direction therein. The slot is a through slot. The number of slots is consistent with the number of unit bushings and corresponds one-to-one. The unit bushing is provided with a connecting key that engages with the slot.

[0010] Preferably, the depth of the slot changes in a stepped manner along the axial direction of the ear plate hole, so that the inner bottom wall of the slot forms a first step portion, and the connecting key is provided with a second step portion opposite to the first step portion.

[0011] Preferably, an end cap is detachably connected to the reinforcing part, and the end cap has a pin hole coaxially arranged with the ear plate hole.

[0012] Preferably, the inner circumferential surface of the end cap is threadedly connected to the outer circumferential surface of the reinforcing part.

[0013] Preferably, a sealing ring is provided around the periphery of the end cap opening, and the sealing ring is sealed to both the ear plate and one end opening of the through hole.

[0014] Preferably, a sealing ring is provided between the reinforcing part and the inner bottom wall of the end cap, the sealing ring is coaxially arranged with the ear plate hole, and the inner diameter of the sealing ring is less than or equal to the diameter of the ear plate hole.

[0015] Preferably, the inner wall of the bushing is provided with a spiral guide groove.

[0016] The extra-large excavator bucket of this utility model has the following advantages: the bushing is divided into multiple unit bushing blocks, each unit bushing block is smaller in size and lighter in weight, which can effectively improve the convenience of bushing disassembly and installation, and improve the convenience of bucket maintenance; and each unit bushing block can be replaced individually according to the wear degree, without having to replace the entire bushing at once, thus reducing the maintenance cost of the bucket. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the bucket of this utility model; Figure 2 This is a schematic diagram of the ear plate of this utility model; Figure 3 This is an exploded view of the ear plate of this utility model; Figure 4 This is a schematic diagram of the ear plate hole of this utility model; Figure 5 This is a schematic diagram of the structure of the bushing of this utility model; Figure 6 This is a schematic diagram of the end cap structure of this utility model; The markings in the diagram are as follows: 1. Main body; 2. Ear plate; 3. Bushing; 4. End cap; 5. Sealing ring; 201. Ear plate hole; 202. Reinforcing part; 203. Slot; 204. First step part; 205. Through hole; 301. Unit liner; 302. Connecting key; 303. Guide groove; 304. Second step part; 401. Sealing ring; 402. Pin hole. Detailed Implementation

[0018] 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.

[0019] The terms "top surface," "bottom surface," and "bottom surface" are used with reference to the normal operating state of the excavator bucket and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] like Figure 1-3 As shown, an ultra-large bucket for excavators includes a main body 1 of the bucket, an ear plate 2 is provided on the main body 1, a bushing 3 is provided in the ear plate hole 201 of the ear plate 2, the bushing 3 is divided into multiple unit bushing blocks 301 along its own axis, the adjacent two unit blocks are fitted with a clearance, and a limit component is provided between the unit bushing block 301 and the inner wall of the ear plate hole 201.

[0021] In the aforementioned bucket, the bushing 3 reduces wear on the ear plate 2 and the pin, ensuring the reliability and durability of the connection between the ear plate 2 and the pin, indirectly improving the bucket's working efficiency and service life. Dividing the bushing 3 into multiple unit bushing blocks 301, each unit bushing block 301 has a smaller volume and lighter weight, improving the ease of installation and disassembly. A gap of 0.1mm-0.5mm is maintained between each unit bushing block 301 to reduce obstruction during independent assembly and disassembly, further enhancing the ease of assembly and disassembly. To ensure the stability of the interconnection between the unit liner blocks 301 and improve the stability of the bucket operation; at the same time, by limiting the relative position between the unit liner block 301 and the ear plate hole 201 through the limiting component, the movement of the unit liner block 301 inside the ear plate hole 201 during the use of the bucket can be reduced, further improving the installation stability of the unit liner block 301 and improving the operation stability of the bucket; after the bushing 3 is divided into multiple unit liner blocks 301, one of the unit liner blocks 301 can be replaced individually according to the wear difference of each unit liner block 301, reducing the maintenance cost of the bucket.

[0022] Further improvements include, for example Figure 4 As shown, both ends of the ear plate hole 201 are provided with annular reinforcing parts 202 in a circumferential direction. Specifically, the reinforcing parts 202 are integrally formed with the ear plate 2. The reinforcing parts 202 can increase the thickness of the material around the ear plate hole 201, thereby improving the structural strength of the ear plate hole 201 and indirectly extending the service life of the bucket.

[0023] Further improvements include, for example Figure 4As shown, the reinforcing part 202 has a through hole 205 along its radial direction, and the through hole 205 is located adjacent to the ear plate 2. Specifically, the through hole 205 is used to connect the inside and outside of the ear plate hole 201. Through the through hole 205, grease or lubricating oil can be added to the inside of the ear plate hole 201 more conveniently to maintain the lubrication effect between the unit liner 301 and the pin and reduce the wear between the two.

[0024] Further improvements include, for example Figure 4 and 5 As shown, the limiting component includes a slot 203 formed on the inner wall of the ear plate hole 201 along its axial direction. The slot 203 is a through slot, and the number of slots 203 is consistent with the number of unit bushings 301 and corresponds one-to-one. The unit bushing 301 is provided with a connecting key 302 that engages with the slot 203. Specifically, through the mutual limiting effect between the slot 203 and the connecting key 302, the relative position between the unit bushing 301 and the ear plate hole 201 can be limited, reducing the movement of the unit bushing 301 during the use of the bucket and improving the stability of the bucket. The slot 203 is a through slot, which can facilitate the axial insertion of the unit bushing 301 into the ear plate hole 201, improving the ease of installation of the unit bushing 301.

[0025] Further improvements include, for example Figure 4 and 5 As shown, along the axial direction of the ear plate hole 201, the depth of the slot 203 changes in a stepped manner, so that the inner bottom wall of the slot 203 forms a first step portion 204. The connecting key 302 is provided with a second step portion 304 opposite to the first step portion 204. When the first step portion 204 and the second step portion 304 abut against each other, the sliding of the unit bushing 301 can be unidirectionally restricted along the axial direction of the ear plate hole 201. During the process of inserting or removing the pin from the ear plate hole 201, the unit bushing 301 can be prevented from sliding synchronously with the pin in the axial direction, thereby improving the convenience of pin assembly and disassembly; and when the bucket is in use, the axial movement of the unit bushing 301 can also be unidirectionally restricted, improving the stability of the bucket.

[0026] Further improvements include, for example Figure 6 As shown, an end cap 4 is provided on the reinforcing part 202. The end cap 4 has a pin hole 402 coaxially arranged with the ear plate hole 201. The inner circumferential surface of the end cap 4 is threadedly connected to the outer circumferential surface of the reinforcing part 202. In the above-mentioned bucket, the end cap 4 can restrict the axial movement of the unit liner 301 from both ends, improving the stability of the unit liner 301 installation. Furthermore, by covering the openings of the reinforcing part 202 and the ear plate hole 201 with the end cap 4, the wear and corrosion of the reinforcing part 202 can be reduced, and the amount of impurities entering the ear plate hole 201 can be reduced, thereby reducing the wear and corrosion of the unit liner 301 and effectively extending the service life and working efficiency of the bucket.

[0027] Further improvements include, for example Figure 6 As shown, a sealing ring 401 is circumferentially provided around the opening of the end cover 4. The sealing ring 401 is sealed to the ear plate 2 and one end opening of the through hole 205. The sealing ring 401 fills the gap between the end cover 4 and the ear plate 2, improving the sealing performance between them. It can reduce the intrusion of water vapor and impurities into the inside of the end cover 4, thereby reducing the corrosion and wear of the threads, maintaining the smoothness of the end cover 4's disassembly and assembly, and improving the convenience of bucket maintenance. The sealing ring 401 can also seal the opening of the through hole 205 to reduce the leakage of grease or lubricating oil, and reduce the probability of impurities entering the ear plate hole 201 through the through hole 205, effectively maintaining the lubrication performance between the unit liner 301 and the pin.

[0028] Further improvements include, for example Figure 3 As shown, a sealing ring 5 is provided between the reinforcing part 202 and the inner bottom wall of the end cover 4. The sealing ring 5 is coaxially arranged with the ear plate hole 201, and the inner diameter of the sealing ring 5 is less than or equal to the diameter of the ear plate hole 201. The sealing ring 5 is used to seal the space between the reinforcing part 202 and the end cover 4, as well as between the reinforcing part 202 and the pin, further reducing the intrusion of external moisture and impurities, and reducing the loss of grease or lubricating oil inside the ear plate hole 201, thereby slowing down the wear and corrosion rate of various components and extending the service life of the bucket.

[0029] Further improvements include, for example Figure 5 As shown, a spiral guide groove 303 is provided on the inner wall of the bushing 3. The gap between the guide groove 303 and the unit bushing 301 can provide space for the flow of grease or lubricating oil inside the ear plate hole 201, so that the grease or lubricating oil is evenly distributed on the surface of the unit bushing 301 and the pin, improving the lubrication effect and ultimately extending the service life of the bucket.

[0030] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A super-large bucket for an excavator, comprising a main body (1) of the bucket, wherein a lug plate (2) is provided on the main body (1), and a bushing (3) is provided in the lug plate hole (201) of the lug plate (2), characterized in that: The bushing (3) is divided into multiple unit bushings (301) along its own axial direction. There is a clearance fit between two adjacent unit bushings. A limit component is provided between the unit bushing (301) and the inner wall of the ear plate hole (201).

2. The super large excavating bucket for excavators according to claim 1, characterized by Both ends of the ear plate hole (201) are provided with annular reinforcing parts (202) in a circumferential direction.

3. The super large excavating bucket for excavators according to claim 2, characterized by The reinforcing part (202) has a through hole (205) in its radial direction, and the through hole (205) is located adjacent to the ear plate (2).

4. The super large excavating bucket for excavators according to claim 1, characterized by The limiting component includes a slot (203) opened on the inner wall of the ear plate hole (201) along the axial direction. The slot (203) is a through slot. The number of slots (203) is consistent with the number of unit liner blocks (301) and corresponds one-to-one. The unit liner block (301) is provided with a connecting key (302) that fits into the slot (203).

5. The super large excavating bucket for excavators according to claim 4, characterized by Along the axial direction of the ear plate hole (201), the depth of the slot (203) changes in a stepped manner, so that the inner bottom wall of the slot (203) forms a first step portion (204), and the connecting key (302) is provided with a second step portion (304) opposite to the first step portion (204).

6. The super large excavating bucket for excavators according to claim 3, characterized by The reinforcing part (202) is detachably connected to an end cap (4), and the end cap (4) is provided with a pin hole (402) coaxially arranged with the ear plate hole (201).

7. The super large excavating bucket for excavators according to claim 6, characterized by The inner circumferential surface of the end cap (4) is threadedly connected to the outer circumferential surface of the reinforcing part (202).

8. The super large excavating bucket for excavators according to claim 6, characterized by A sealing ring (401) is provided around the periphery of the opening of the end cap (4), and the sealing ring (401) is sealed to one end of the ear plate (2) and the through hole (205).

9. The super large excavating bucket for excavators according to claim 6, characterized by A sealing ring (5) is provided between the reinforcing part (202) and the inner bottom wall of the end cap (4). The sealing ring (5) is coaxially arranged with the ear plate hole (201). The inner diameter of the sealing ring (5) is less than or equal to the diameter of the ear plate hole (201).

10. The super large excavating bucket for excavators according to claim 1, characterized by The inner wall of the bushing (3) is provided with a spiral guide groove (303).

Images