Durable rock bucket of excavator

Abstract

The durable rock bucket comprises a bottom plate, the bottom plate is provided with an upper side edge fixedly connected with a bucket lug plate and a lower side edge fixedly connected with a tooth holder plate, side plates are fixedly connected to the two sides of the bottom plate, bucket teeth are arranged on the tooth holder plate, the bottom plate arches towards the inner side of the bucket to form an arc-shaped buffering part, and the arc-shaped buffering part is arranged close to the upper side edge. And the bucket extends along the width direction of the bucket. When large stones are shoveled into the excavator bucket, the stones impact the arc-shaped buffering part, and the impact force of the stones is dispersed through the arc-shaped structure, so that an effective buffering effect is achieved, the abrasion speed of the excavator bucket is slowed down, and the service life of the excavator bucket is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavator buckets, and in particular relates to a durable rock bucket for an excavator. Background Art

[0002] An excavator, also known as a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and load them into transport vehicles or unload them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rocks. From the development of engineering machinery in recent years, the development of excavators has been relatively fast, and excavators have become one of the most important engineering machinery in engineering construction. The bucket is a structural component product. It is a bucket-shaped component that directly contacts the soil. The oil cylinder uses high-pressure oil as the medium and connecting rods as auxiliary mechanisms to drive the bucket for excavation.

[0003] A Chinese utility model with publication number CN219157801U discloses an excavator bucket structure, including an excavator bucket, the top of which is symmetrically welded with ear plates, the outer wall of the bottom end of the excavator bucket is hinged with a bucket cover plate for sealing, the bottom end of the inside of the excavator bucket is integrally provided with a screening bottom plate, one end of the screening bottom plate is equidistantly provided with a plurality of digging bucket teeth, and the side walls of the excavator bucket are symmetrically provided with side shovels.

[0004] When using the above bucket to shovel rocks into the bucket, larger rocks will hit the connection between the bottom plate and the bucket ear plate, causing the connection between the bucket ear plate and the bottom plate to wear faster, thereby affecting the firmness of the connection between the bucket and the excavator and shortening the service life of the bucket.

[0005] Therefore, it is necessary to improve the rock bucket of the excavator in the prior art. Utility Model Content

[0006] The purpose of the utility model is to overcome the defects in the prior art and provide a durable rock bucket for an excavator, thereby improving the durability of the rock bucket of the excavator and extending its service life.

[0007] To achieve the above purpose, the specific technical solution of the durable rock bucket for excavators of the utility model is as follows:

[0008] A durable rock bucket for an excavator comprises a bottom plate, wherein the bottom plate has an upper side fixedly connected to a bucket ear plate and a lower side fixedly connected to a tooth seat plate, side plates are fixedly connected to both sides of the bottom plate, bucket teeth are arranged on the tooth seat plate, the bottom plate is arched toward the inner side of the bucket to form an arc-shaped buffer portion, the arc-shaped buffer portion is arranged adjacent to the upper side and extends along the width direction of the bucket, the bucket ear plate is arranged perpendicular to the width direction of the bucket, and the side of the buffer portion facing away from the bucket tooth is tightly fitted with the side of the bucket ear plate.

[0009] Preferably, in order to improve the firmness of the connection between the bucket ear plate and the bottom plate, the side of the buffer portion facing away from the bucket tooth has a groove, the notch of the groove is covered with a back plate, and the back plate is fixedly connected to the side plate and the bucket ear plate.

[0010] Preferably, in order to improve the strength of the back plate and thus further strengthen the strength of the connection between the bucket ear plate and the bottom plate, the cross-sectional shape of the back plate is arc-shaped, and the back plate extends along the width direction of the bucket.

[0011] Preferably, in order to enhance the buffering effect of the buffer portion, the back plate, the buffer portion and the two side plates are enclosed to form a cavity, and the cavity is filled with a buffer member.

[0012] Preferably, in order to make the buffer component have a better buffering effect and also have a certain noise reduction effect, the buffer component is a polyurethane foam block.

[0013] Preferably, in order to improve the strength of the connection between the bucket ear plate and the back plate, reinforcing ribs are provided between the back plate and the bucket ear plate.

[0014] Preferably, in order to improve the firmness of the connection between the bucket ear plate and the bottom plate, the bucket ear plate is provided with a slot, and the upper side of the bottom plate is plugged into and matched with the slot.

[0015] The durable rock bucket for excavators of the utility model has the following advantages: when larger rocks are shoveled into the bucket, the rocks hit the arc-shaped buffer part, and the arc-shaped structure disperses the impact force of the rocks, thereby playing an effective buffering role, thereby slowing down the speed of bucket wear and extending the service life of the bucket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the rock bucket of the utility model;

[0017] Figure 2 A cross-sectional view of the rock bucket of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the back plate of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the buffer part of the utility model;

[0020] Figure 5 This is a structural schematic diagram of the bucket ear plate of the utility model;

[0021] Explanation of the markings in the figure: 1. tooth seat plate; 2. bottom plate; 3. side plate; 4. reinforcing rib; 5. back plate; 6. bucket ear plate; 7. cavity; 8. bucket tooth; 21. buffer part; 22. upper side; 23. lower side; 61. slot. DETAILED DESCRIPTION

[0022] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0023] The terms “top surface”, “bottom surface” and “underside” are based on the normal use state of the rock bucket of an excavator and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0024] Excavators can also be generally used for loading rocks, and rock buckets are specially designed for this purpose. When rocks are loaded into the existing rock bucket, the rocks will slide along the inner bottom wall of the bucket into the bucket. When the rock bucket is loaded with larger rocks, the rocks will roll over and hit the connection between the bucket ear plate 6 and the bottom plate 2 at the bucket opening, causing accelerated wear of this part. As the bucket is used for a longer time, the connection between the bucket ear plate 6 and the bottom plate 2 wears, causing the connection between the two to loosen, which in turn causes the connection strength between the bucket and the excavator to decrease. During the use of the bucket, the connection strength between the bucket and the excavator is not enough, which will pose a major safety hazard.

[0025] To solve the above problems, see Figure 1 A durable rock bucket for an excavator includes a bottom plate 2, the bottom plate 2 having an upper side edge 22 fixedly connected to a bucket ear plate 6 and a lower side edge 23 fixedly connected to a tooth seat plate 1, side plates 3 are fixedly connected to both sides of the bottom plate 2, the tooth seat plate 1 is provided with bucket teeth 8, the bottom plate 2 is arched toward the inside of the bucket to form an arc-shaped buffer portion 21, the arc-shaped buffer portion 21 is arranged adjacent to the upper side edge 22, and extends along the width direction of the bucket.

[0026] The structure of the rock bucket generally includes a curved bottom plate 2, with side plates 3 welded to both sides of the bottom plate 2. The bottom plate 2 and the side plates 3 are fixedly connected to form an inner cavity of the rock bucket. A tooth seat plate 1 is welded at the lower side 23 of the bottom plate 2. A plurality of bucket teeth 8 are arranged at equal intervals on the tooth seat plate 1 along the width direction of the bucket. Two bucket ear plates 6 are welded to the upper side of the rock bucket. The bucket ear plates 6 are located on the outside of the inner cavity of the bucket, and bolt holes are provided on the bucket ear plates 6. Bolts are arranged in the bolt holes to connect with the excavator.

[0027] When the rock bucket shovels a larger rock into the bucket, the rock may be placed between the upper side 22 and the lower side 23 of the bottom plate 2. When the rock turns over and enters the bucket, the rock hits the arched arc buffer portion 21. The buffer portion 21 can disperse the impact force generated by the rock, thereby playing a certain buffering role. The buffering of the buffer portion 21 can slow down the wear rate of the connection between the bucket ear plate 6 and the bottom plate 2, thereby extending the service life of the bucket; and the slowing of the wear of the bucket ear plate 6 and the bottom plate 2 can also effectively ensure the strength of the connection between the bucket and the excavator, thereby ensuring the normal operation of the excavator.

[0028] A further improvement is to see Figure 2-Figure 4 The bucket ear plate 6 is arranged perpendicular to the width direction of the bucket, and the side of the buffer portion 21 away from the bucket tooth 8 is closely fitted with the side of the bucket ear plate 6. The side of the bucket ear plate 6 adjacent to the bottom plate 2 is closely fitted with the bottom plate 2 and the two are welded together, which can effectively support the buffer portion 21, improve the strength of the buffer portion 21, and thus extend the service life of the bucket; at the same time, it can also improve the connection strength between the bucket ear plate 6 and the bottom plate 2, and improve the reliability of the connection between the bucket and the excavator.

[0029] A further improvement is to see Figure 2-Figure 4 The side of the buffer portion 21 facing away from the bucket tooth 8 has a groove, and the notch of the groove is covered with a back plate 5, and the back plate 5 is fixedly connected to the side plate 3 and the bucket ear plate 6. The back plate 5 is welded and fixed to the bucket ear plate 6, the side plate 3 and the bottom plate 2, which can improve the connection strength between the bucket ear plate 6, the side plate 3 and the bottom plate 2, thereby improving the overall strength of the bucket.

[0030] A further improvement is to see Figure 2-Figure 4 The cross-section of the back plate 5 is an arc, and the back plate 5 extends along the width direction of the bucket. The arc-shaped back plate 5 is not easy to bend along the width direction of the bucket, and can play a supporting and reinforcing role in the overall structure of the bucket; and the arc structure can also play a good effect of dispersing the force of the rock impact from the outside, thereby playing a role of buffering the impact and extending the service life of the bucket.

[0031] A further improvement is to see Figure 3 , Figure 4 The back plate 5, the buffer part 21 and the two side plates 3 enclose a cavity 7, and the cavity 7 is filled with a buffer, which is a polyurethane foam block. After the polyurethane foam block is filled in the cavity 7, the buffer performance of the buffer part 21 and the back plate 5 can be improved. Since the polyurethane foam block has a porous structure, it will not increase the overall weight of the bucket; when stones hit the buffer part 21 and the back plate 5, the porous polyurethane foam block can also absorb the noise generated to a certain extent, thereby achieving a noise reduction effect.

[0032] A further improvement is to see Figure 3 , Figure 4 A reinforcing rib 4 is provided between the back plate 5 and the bucket ear plate 6. The reinforcing rib 4 is welded and fixed to the back plate 5 and the bucket ear plate 6, and plays a supporting and reinforcing role between the two, thereby improving the strength of the connection between the back plate 5 and the bucket ear plate 6, and thus improving the overall strength of the bucket.

[0033] A further improvement is to see Figure 5 The bucket ear plate 6 is provided with a slot 61, and the upper side 22 of the bottom plate 2 is plugged into the slot 61. The slot 61 and the bottom plate 2 are mutually limited, which can improve the strength of the connection between the bucket ear plate 6 and the bottom plate 2; and part of the bucket ear plate 6 extends to the side of the buffer part 21 close to the bucket tooth 8, and this part of the bucket ear plate 6 can also withstand the impact force of some stones, thereby slowing down the wear speed at the buffer part 21 and extending the service life of the bucket.

[0034] When the excavator rock bucket shovels larger stones into the bucket, the stones hit the arc-shaped buffer part, and the arc-shaped structure disperses the impact force of the stones, thereby playing an effective buffering role, thereby slowing down the wear of the bucket and extending the service life of the bucket.

[0035] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention 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 scope of protection of the present invention.

Claims

1. A durable rock bucket for an excavator, comprising a bottom plate (2), the bottom plate (2) having an upper side edge (22) fixedly connected to a bucket ear plate (6) and a lower side edge (23) fixedly connected to a tooth seat plate (1), side plates (3) being fixedly connected to both sides of the bottom plate (2), the tooth seat plate (1) being provided with bucket teeth (8), characterized in that: The bottom plate (2) is arched toward the inside of the bucket to form an arc-shaped buffer portion (21), the arc-shaped buffer portion (21) is arranged adjacent to the upper side edge (22) and extends along the width direction of the bucket, the bucket ear plate (6) is arranged perpendicular to the width direction of the bucket, and the side of the buffer portion (21) facing away from the bucket tooth (8) is tightly fitted with the side of the bucket ear plate (6).

2. The heavy-duty rock bucket for excavators according to claim 1, characterized in that: The side of the buffer portion (21) facing away from the bucket tooth (8) has a groove, and the notch of the groove is covered with a back plate (5), and the back plate (5) is fixedly connected to the side plate (3) and the bucket ear plate (6).

3. The heavy-duty rock bucket for excavators according to claim 2, characterized in that: The cross-sectional shape of the back plate (5) is arc-shaped, and the back plate (5) extends along the width direction of the bucket.

4. The heavy-duty rock bucket for excavators according to claim 3, characterized in that: The back plate (5), the buffer portion (21) and the two side plates (3) enclose a cavity (7), and the cavity (7) is filled with a buffer component.

5. The heavy-duty rock bucket for excavators according to claim 4, characterized in that: The buffer component is a polyurethane foam block.

6. The heavy-duty rock bucket for excavators according to claim 2, characterized in that: A reinforcing rib (4) is provided between the back plate (5) and the bucket ear plate (6).

7. The durable rock bucket for excavators according to any one of claims 1 to 6, characterized in that: The bucket ear plate (6) is provided with a slot (61), and the upper side edge (22) of the bottom plate (2) is plugged into and matched with the slot (61).

Images