Reinforced mine bucket with two groups of lug plates
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANZHONG JIANJI CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-19
AI Technical Summary
[0002]挖掘机,又称挖掘机械,又称挖土机,是用铲斗挖掘高于或低于承机面的物料,并装入运输车辆或卸至堆料场的土方机械,铲斗是挖掘机重要的执行部件,铲斗的耐久性决定矿用挖掘机的性能和效率,铲斗在作业过程中,耳板强度不足会产生变形或结构开裂,单组耳板与后弯板的连接处,容易因为应力集中而产生断裂、开裂的现象,尤其在高频振动或交变载荷工况下,更加容易发生开裂,实用单组耳板铲斗的挖掘机,与铲斗配合的动臂前端,因为要连接铲斗而设置在耳板的内侧并通过轴连接,斗底斗侧容易因磕碰变形、磨损,严重影响铲斗的使用寿命且不易维修,进而增大了矿用挖掘机的作业成本
[0014]1.本实用新型采用两组耳板对称设置的结构与斗杆进行连接,将耳板处受到的应力进行分散,并且由后弯板、后底板、弧板分摊,提高耳板、后弯板的强度延长使用寿命,同时采用可以拆卸的第二护套防护侧刃板,损坏更换方便,第一护套防护斗侧接缝处,提高强度,实现了增加耳板处强度,护套防护铲斗,护套便于更换,延长使用寿命的功能。
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Figure CN224259477U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of excavator technology, specifically a reinforced mining bucket with two sets of ear plates. Background Technology
[0002] An excavator, also known as a digging machine or a soil excavator, is an earthmoving machine that uses a bucket to excavate materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile. The bucket is a crucial component of the excavator, and its durability determines the performance and efficiency of the mining excavator. During operation, insufficient strength of the ear plates can lead to deformation or structural cracking of the bucket. The connection between a single set of ear plates and the rear bending plate is prone to fracture and cracking due to stress concentration, especially under high-frequency vibration or alternating load conditions. In excavators using single-ear plate buckets, the boom end, which connects to the bucket, is located inside the ear plates and connected by a shaft. The bucket bottom and sides are prone to deformation and wear due to impacts, severely affecting the bucket's service life and making maintenance difficult, thus increasing the operating costs of the mining excavator.
[0003] Therefore, the inventors aimed to solve the problem of designing a bucket that increases the strength of the ear plate, has a protective sleeve for the bucket, is easy to replace, and has an extended service life. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a reinforced mining bucket with two sets of ear plates, which can increase the strength of the ear plates, protect the bucket with a protective sleeve, facilitate sleeve replacement, and extend service life.
[0005] The technical solution adopted by this utility model device is: a reinforced mining bucket with two sets of ear plates, which includes an arc plate. The outer arc surface and the inner arc surface of the arc plate at the front end are connected to bottom plates. The two ends of the arc plate are respectively connected to a rear bottom plate and a blade plate. A rear curved plate is connected to the end face of the rear bottom plate. Two sets of symmetrically distributed ear plates are connected between the rear curved plate, the arc plate, and the rear bottom plate. The end of the blade plate is provided with bucket teeth. Side plates are connected to both sides of the arc plate. Side plates are connected to the joint between the side plates and the front end of the arc plate. Side cutting plates are connected to the upper end of the side plates. Reinforcing ribs are connected between the side cutting plates and the rear bottom plate.
[0006] Furthermore, a first sheath is connected between the side panel and the arc plate, and all the first sheaths are evenly distributed.
[0007] Furthermore, a second sheath is provided on the outer side of the upper end of the side blade, and the second sheath is connected to the side blade by bolts.
[0008] Furthermore, the number of second sheaths provided on each of the side blades is two and they are symmetrically distributed.
[0009] Furthermore, the distance between the two sets of ear plates is two-thirds of the distance between the two ear plates in a single set of ear plates.
[0010] Furthermore, the distance between the ear plate group and the side blade plate is greater than the distance between the two ear plates in the ear plate group, and the difference is not greater than half of the distance between the two ear plates in the ear plate group.
[0011] Furthermore, an arc-shaped plate is connected between the lower end of the ear plate assembly and the arc plate.
[0012] Furthermore, the end of the arc-shaped plate is positioned between the bottom plate and the arc plate, which is located on the outside of the arc plate.
[0013] The beneficial effects of this utility model device are:
[0014] 1. This utility model adopts a structure with two sets of symmetrically arranged ear plates connected to the bucket rod, which disperses the stress on the ear plates and distributes it through the rear curved plate, rear bottom plate, and arc plate, thereby improving the strength of the ear plates and rear curved plate and extending their service life. At the same time, a detachable second protective sleeve is used to protect the side blade plate, which is convenient to replace if damaged. The first protective sleeve protects the side joint of the bucket and improves the strength. This achieves the functions of increasing the strength of the ear plates, protecting the bucket with the protective sleeve, and making the protective sleeve easy to replace and extending its service life. Attached Figure Description
[0015] Figure 1 This is a structural view of the present invention.
[0016] Figure 2 This is a structural view of the rear bottom plate of this utility model.
[0017] Figure 3 This is a structural view of the assembly state of this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1-Arc plate; 2-Back bending plate; 3-Ear plate assembly; 4-Blade plate; 5-Side blade plate; 6-Side plate; 7-Rear bottom plate; 8-Reinforcing rib plate; 9-Side plate; 10-Bottom plate; 11-Bucket teeth; 12-First protective sleeve; 13-Second protective sleeve. Detailed Implementation
[0019] The present invention will be further described below with reference to specific embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0020] Example 1: See Figures 1 to 2This is a structural view of the present invention, including a structural view of the rear bottom plate 7. It describes a reinforced mining bucket with two sets of ear plates, comprising an arc plate 1. Both the outer and inner arc surfaces of the arc plate 1 at the front end are connected to bottom plates 10, which are wear-resistant plates used to increase strength and reduce wear on the bucket body. The two ends of the arc plate 1 are respectively connected to the rear bottom plate 7 and the blade plate 4. A rear curved plate 2 is connected to the end face of the rear bottom plate 7. Two symmetrically distributed ear plate groups 3 are connected between the rear curved plate 2, the arc plate 1, and the rear bottom plate 7. The distance between the two ear plate groups 3 is equal to the distance between two ear plates in a single ear plate group 3. Two-thirds of the spacing, the spacing between the ear plate assembly 3 and the side cutting plate 5 is greater than the spacing between the two ear plates in the ear plate assembly 3, but the difference is not greater than half of the spacing between the two ear plates in the ear plate assembly 3. With this arrangement and distribution, the stress on the ear plates is dispersed, so that the stress is shared by the entire rear curved plate 2, rear bottom plate 7, and arc plate 1 of the bucket. In order to strengthen the strength of the bottom of the bucket and the strength of the connection between the ear plate and the arc plate 1, an arc-shaped plate is connected between the lower end of the ear plate assembly 3 and the arc plate 1. The end of the arc-shaped plate is located between the bottom plate 10 located outside the arc plate 1 and the arc plate 1.
[0021] The blade 4 is provided with a tooth 11 at its end. Both sides of the arc plate 1 are connected with side plates 6. The side plate 6 and the front end of the arc plate 1 are connected with a side plate 9. The side plate 9 has the same purpose as the bottom plate 10, which is to strengthen the strength and provide wear resistance. The upper end of the side plate 6 is connected with a side blade plate 5. A reinforcing rib plate 8 is connected between the side blade plate 5 and the rear bottom plate 7.
[0022] The rear bottom plate 7 of the bucket, together with the side cutting edge plate 5, side plate 6, blade plate 4, and arc plate 1, form a frame structure. This frame structure is connected by welding, and the plates are made of high-strength steel plates, giving the bucket sufficient strength and rigidity.
[0023] To better protect the connection between the arc plate 1 and the side plate 6, and to enhance strength, a first protective sleeve 12 is connected between the side plate 9 and the arc plate 1. All the first protective sleeves 12 are evenly distributed. The sleeves have wear-resistant properties and can effectively protect the side corners of the bucket and extend its service life.
[0024] To better protect the side cutting plate 5, a second protective sleeve 13 is provided on the upper outer side of the side cutting plate 5. The second protective sleeve 13 is connected to the side cutting plate 5 by bolts. There are two second protective sleeves 13 on each side cutting plate 5, which are symmetrically distributed. The second protective sleeve 13 is set by bolts and can be removed by unscrewing the bolts. When the second protective sleeve 13 is severely worn, it can be removed for replacement and maintenance. The operation is simple and convenient.
[0025] The rear bottom plate 7 of the bucket is welded to the ear plate and welded to the rear bend 2, forming a reliable box structure. Moreover, the connection dimensions and thickness of the two sets of ear plates can be adjusted during the production and processing stage according to different working conditions to ensure the strength of the bucket under working conditions.
[0026] The bucket's rear bottom plate 7, side cutting edge plate 5, side plate 6, blade plate 4, and arc plate 1 form a frame structure. The top view of this frame structure is trapezoidal. Moreover, the width of the rear bottom plate 7 and the blade can be adjusted during the production and processing stage according to different working conditions to adapt to different working conditions.
[0027] See Figure 3 This is a structural view of the assembly state of this utility model. The stick of the excavator is a component directly connected to the bucket. It is large in size and heavy, which increases the burden on the whole machine. The structure of the double ear plate group 3 adopted in this utility model can be designed with the stick end that cooperates with it as a U-shaped structure with a groove in the middle and the structure on both sides cooperating with the ear plate. This structure has been tested and can reduce the material used at the end of the stick without affecting the connection strength, thereby reducing the weight of the stick and reducing the load on the whole machine.
[0028] This utility model employs a structure with two sets of symmetrically arranged ear plates connected to the bucket rod, which disperses the stress on the ear plates and distributes it through the rear curved plate 2, rear bottom plate 7, and arc plate 1, thereby improving the strength of the ear plates and rear curved plate 2 and extending their service life. At the same time, a detachable second protective sleeve 13 is used to protect the side blade plate 5, making it easy to replace if damaged. The first protective sleeve 12 protects the bucket side joint, improving strength. This achieves the functions of increasing the strength of the ear plates, protecting the bucket with the protective sleeve, facilitating the replacement of the protective sleeve, and extending its service life.
Claims
1. A reinforced mining bucket with two sets of lugs, characterized in that: The device includes an arc plate (1), on which a bottom plate (10) is connected to both the outer and inner arc surfaces at the front end. A rear bottom plate (7) and a blade plate (4) are connected to both ends of the arc plate (1). A rear bending plate (2) is connected to the end face of the rear bottom plate (7). Two sets of symmetrically distributed ear plates (3) are connected between the rear bending plate (2), the arc plate (1), and the rear bottom plate (7). A bucket tooth (11) is provided at the end of the blade plate (4). Side plates (6) are connected to both sides of the arc plate (1). A side plate (9) is connected to the joint between the side plate (6) and the front end of the arc plate (1). A side blade plate (5) is connected to the upper end of the side plate (6). A reinforcing rib plate (8) is connected between the side blade plate (5) and the rear bottom plate (7).
2. The reinforced mining bucket with two sets of ear plates according to claim 1, characterized in that: A first sheath (12) is connected between the side panel (9) and the arc plate (1), and all the first sheaths (12) are evenly distributed.
3. The reinforced mining bucket with two sets of ear plates according to claim 1, characterized in that: A second sheath (13) is provided on the outer side of the upper end of the side blade (5), and the second sheath (13) is connected to the side blade (5) by bolts.
4. A reinforced mining bucket with two sets of lugs according to claim 3, characterized in that: The number of second sheaths (13) provided on each of the side blades (5) is two and they are symmetrically distributed.
5. A reinforced mining bucket with two sets of lugs according to claim 1, characterized in that: The distance between the two sets of ear plates (3) is two-thirds of the distance between the two ear plates in a single set of ear plates (3).
6. A reinforced mining bucket with two sets of lugs according to claim 5, characterized in that: The distance between the ear plate group (3) and the side blade plate (5) is greater than the distance between the two ear plates in the ear plate group (3) and the difference is not greater than half of the distance between the two ear plates in the ear plate group (3).
7. A reinforced mining bucket with two sets of ear plates according to claim 6, characterized in that: An arc-shaped plate is connected between the lower end of the ear plate assembly (3) and the arc plate (1).
8. A reinforced mining bucket with two sets of ear plates according to claim 7, characterized in that: The end of the arc-shaped plate is located between the bottom plate (10) and the arc plate (1) on the outside of the arc plate (1).