Excavator bucket shaft convenient to install and maintain

Abstract

The excavator bucket shaft convenient to install and maintain comprises a connecting rod, a bucket and a bucket shaft body, the connecting rod and the bucket are connected through the bucket shaft body, the bucket shaft body comprises a shaft body and a positioning ring, a rotating handle is arranged on the outer side of the positioning ring, a fixing rod is arranged between the rotating handle and the positioning ring, and an assembly hole is formed in the right side of the shaft body. An inner hexagonal thread groove is formed in the middle of the left side face of the positioning ring, a marking needle is arranged on one side of the inner hexagonal thread groove, an oil injection port is formed in the top of the positioning ring, and an oil outlet is formed in the shaft body and communicated with the oil injection port. The rotating handle and the inner hexagonal thread groove are arranged on the positioning ring, and the marking needle is arranged on one side of the inner hexagonal thread groove and corresponds to the assembly hole of the shaft body, so that the assembly hole and the bolt hole can be communicated and quickly mounted; the positioning ring is provided with an oil injection port, the oil conveying pipeline shaped like the Chinese character'tu 'is arranged on the inner side of the shaft body, oil outlets are symmetrically formed, the bucket shaft can be lubricated and maintained, the abrasion resistance is improved, and the bucket shaft is novel in structure, ingenious in design, high in practicability and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator accessories, in particular to an excavator bucket shaft which is easy to install and maintain. Background Art

[0002] An excavator, also known as an excavation machine, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and loads them into a transport vehicle or unloads them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loose soil and rock. From the development of engineering machinery in recent years, the development of excavators is relatively fast. Excavators have become one of the most important engineering machinery in engineering construction. The bucket shaft can be used to connect the bucket. After the excavator has been working for a period of time, as the load hinge of the excavator bucket moves, the excavator bucket shaft and the outer wall of the excavator bucket continue to act, and the bucket shaft will be worn and need to be replaced. When replacing the bucket shaft, the assembly hole on the bucket shaft and the pin hole on the bucket often do not match, resulting in troublesome installation, long time consumption, and affecting the installation efficiency. At the same time, when the excavator is working, dust and gravel will enter the two ends of the bucket shaft during work, and the bucket shaft needs to be effectively lubricated and maintained, otherwise it will accelerate the wear of the bucket shaft, reduce the service life of the bucket shaft, and thus increase production costs. In view of this, it is necessary to provide an excavator bucket shaft that is easy to install and maintain to solve the above technical problems. The bucket shaft can be installed quickly and the installation time can be reduced through a simpler structure. At the same time, the bucket shaft can be lubricated and maintained during normal work.

[0003] In order to improve the assembly efficiency of the bucket shaft and prevent the pin from moving during the fixed assembly process, resulting in mismatching, a Chinese patent application, announcement number: CN214784335U, discloses a new excavator bucket shaft. The utility model includes a shaft body, a positioning ring is provided at one end of the shaft body, a limiting slide groove is provided at the center of the other end, and a closing piece is also included. The closing piece is connected to the other end of the shaft body and closes the limiting slide groove. A limiting block is slidingly provided in the limiting slide groove. After the bucket shaft is loaded into the excavator bucket, the pin is penetrated through the assembly hole, and the pin will simultaneously penetrate the limiting hole of the limiting block. The cooperation of the pin and the positioning ring clamps and limits the excavator bucket. Before fixing, the bolt is rotated by a tool so that the bolt drives the threaded limiting block to move axially. The limiting hole on the limiting block contacts the pin during the movement to limit the pin.

[0004] There are still some deficiencies in the application of this solution. Since the excavator bucket has a certain weight, during the installation process, the bucket shaft needs to be adjusted to align the assembly hole with the pin hole. However, there is no other handle on the bucket shaft that can facilitate the adjustment by workers, and it is very easy for the bucket shaft to be difficult to rotate. At the same time, generally, the lubrication and maintenance of the bucket shaft usually involve regularly injecting lubricating oil into the oil hole. The existing structure usually has an oil outlet on the left and right sides. This method has limited lubrication effect and cannot meet the actual lubrication requirements. Therefore, it is necessary to improve the structure of the bucket shaft to make it more convenient for installation and maintenance and effectively improve its practical performance. Summary of the Invention

[0005] The present invention discloses an excavator bucket shaft that is convenient for installation and maintenance, and its main purpose is to overcome the above-mentioned deficiencies and drawbacks existing in the prior art.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An excavator bucket shaft that is convenient for installation and maintenance, including a connecting rod, a bucket, and a bucket shaft. The connecting rod and the bucket are connected by the bucket shaft. The bucket shaft includes a shaft body and a positioning ring. The positioning ring is arranged on the left side of the shaft body. A turning handle is arranged outside the positioning ring, and several fixing rods are arranged between the turning handle and the positioning ring. An assembly hole is arranged on the right side of the shaft body. An internal hexagonal threaded groove is arranged in the middle of the left side surface of the positioning ring. A marking needle is arranged on one side of the internal hexagonal threaded groove. An oil injection port is arranged on the top of the positioning ring. Oil outlets are symmetrically arranged on the left and right sides of the shaft body, and the oil outlets are communicated with the oil injection port.

[0008] Furthermore, a "soil"-shaped oil delivery pipeline is arranged inside the shaft body, and the top end of the oil delivery pipeline is communicated with the oil injection port. A cover body is arranged to match the oil injection port.

[0009] Furthermore, the marking needle is arranged corresponding to the assembly hole, and the marking needle points to the perforation position of the assembly hole.

[0010] Furthermore, a pin hole is correspondingly arranged on the right side of the bucket, and the pin hole is adapted to be paired with the assembly hole and a fixing bolt is arranged between them.

[0011] Furthermore, a rubber ring is sleeved on the assembly hole.

[0012] Furthermore, a lubrication cavity is arranged at the oil outlet, and filter nets are arranged on the front and rear sides of the lubrication cavity, and absorption sponges are arranged inside the filter nets.

[0013] It can be seen from the above description of the present invention that compared with the prior art, the advantages of the present invention are:

[0014] The utility model first sets a rotating handle on the positioning ring on the left side of the bucket shaft and an internal hexagonal thread groove in the middle. A marking needle is arranged on one side of the internal hexagonal thread groove, and the marking needle corresponds to the assembly hole of the shaft body. Through this setting, the quick rotation adjustment of the bucket shaft is realized, which is convenient for corresponding and penetrating with the pin hole of the bucket, and is convenient for the quick installation of the bucket shaft, solving the problem that the existing bucket shaft is not convenient for rotation adjustment. Then, an oil injection port is arranged on the positioning ring, and a "soil"-shaped oil pipeline is arranged inside the shaft body and symmetrically provided with four oil outlets. At the same time, an absorption sponge is arranged at the end of the oil outlet. Through this setting, the bucket shaft can be lubricated and maintained regularly, and the absorption sponge can continuously lubricate, improving the wear resistance of the bucket shaft and increasing the service life. Finally, a rubber ring is sleeved on the assembly hole of the shaft body, making the connection between the bucket shaft and the bucket more sealed, avoiding dust entering due to too large a gap. The structure of the utility model is novel, the design is ingenious, and the practicability is strong, which is suitable for popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic side view structure diagram of the utility model.

[0016] Figure 2 is a schematic left side view structure diagram of the bucket shaft of the utility model.

[0017] Figure 3 is a schematic front view structure diagram of the bucket shaft of the utility model.

[0018] Figure 4 is a schematic right side view structure diagram of the bucket shaft of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the specific embodiments of the utility model with reference to the description of the drawings.

[0020] Such as Figures 1 to 4As shown in the figure, an excavator bucket shaft that is convenient for installation and maintenance includes a connecting rod 1, a bucket 2, and a bucket shaft 3. The connecting rod 1 and the bucket 2 are connected by the bucket shaft 3. The bucket shaft 3 includes a shaft body 31 and a positioning ring 32. The positioning ring 32 is arranged on the left side of the shaft body 31. A rotating handle 4 is arranged on the outer side of the positioning ring 32. A number of fixing rods 41 are arranged between the rotating handle 4 and the positioning ring 32. In the middle of the left side surface of the positioning ring 32, there is an internal hexagonal threaded groove 5. One side of the internal hexagonal threaded groove 5 is provided with a marking needle 6. On the right side of the shaft body 31, there is an assembly hole 7. The marking needle 6 is arranged corresponding to the assembly hole 7. The marking needle 6 points to the perforation position of the assembly hole 7. On the right side of the bucket 2, there is a corresponding pin hole. The pin hole is adapted and paired with the assembly hole 7, and a fixing bolt 8 is arranged between them. A rubber ring is sleeved on the assembly hole 7 (not marked in the schematic diagram due to the perspective). During the assembly process, the bucket shaft 3 can be rotated and adjusted through the rotating handle 4 or the internal hexagonal threaded groove 5, so that the assembly hole 7 is correspondingly penetrated with the pin hole on the bucket 2, which is convenient for the fixing bolt 8 to pass through and be fixed. And a rubber ring is sleeved on the assembly hole 7, which can improve the sealing performance and avoid dust from entering due to too large a gap.

[0021] As Figures 1 to 4 shown, an oil injection port 9 is arranged on the top of the positioning ring 32. Oil outlet ports 10 are symmetrically arranged on the left side and the right side of the shaft body 31. The oil outlet ports 10 are communicated with the oil injection port 9. An "earth"-shaped oil delivery pipeline 11 is arranged inside the shaft body 31. The top end of the oil delivery pipeline 11 is communicated with the oil injection port 9. A cover body is arranged in an adapted manner for the oil injection port 9. A lubricating cavity 12 is arranged at the oil outlet port 10. Filter meshes are arranged on the front and back sides of the lubricating cavity 12. Absorbent sponges are arranged inside the filter meshes. Lubricating oil is injected into the "earth"-shaped oil delivery pipeline 11 inside the shaft body 31 through the oil injection port 9 and flows to the end of the oil outlet port 10. Through the filter meshes and the absorbent sponges of the lubricating cavity 12, the lubricating oil can better stay at the oil outlet port 10 to effectively lubricate the bucket shaft 3 and prevent impurities from entering the oil delivery pipeline 11 and causing blockage.

[0022] [Embodiment]

[0023] First, when installing the bucket shaft 3, pass the bucket shaft 3 through between the connecting rod 1 and the bucket 2. Then, rotate the bucket shaft 3 through the rotating handle 4 to make the assembly hole 7 of the bucket shaft 3 penetrate through the pin hole of the bucket 2. During the adjustment process, the position of the assembly hole 7 can be known in time through the marking needle 6. The bucket shaft 3 can also be rotated by inserting a tool into the internal hexagonal threaded groove 5. After the assembly hole 7 penetrates through the pin hole, fix it with the fixing bolt 8 to complete the rapid installation of the bucket shaft 3. Finally, after the installation is completed, inject lubricating oil into the oil delivery pipeline 11 from the oil injection port 9. The lubricating oil flows through the oil delivery pipeline 11 to the four oil outlet ports 10. The absorbent sponges at the oil outlet ports 10 absorb the lubricating oil to continuously lubricate the bucket shaft 3.

[0024] As can be seen from the above description of the present utility model, compared with the prior art, the advantages of the present utility model are as follows:

[0025] Firstly, the present utility model realizes the quick rotation adjustment of the bucket shaft by setting a rotating handle on the positioning ring on the left side of the bucket shaft, an internal hexagonal threaded groove in the middle, and a marking needle on one side of the internal hexagonal threaded groove. The marking needle corresponds to the assembly hole of the shaft body. Through this setting, the quick rotation adjustment of the bucket shaft is achieved, which is convenient for corresponding and penetrating with the pin hole of the bucket, and is convenient for the quick installation of the bucket shaft, solving the problem that the existing bucket shaft is not convenient for rotation adjustment. Then, an oil injection port is provided on the positioning ring, a "soil"-shaped oil delivery pipeline is provided inside the shaft body, and four oil outlets are symmetrically provided. At the same time, an absorption sponge is provided at the end of the oil outlet. Through this setting, the bucket shaft can be lubricated and maintained regularly, and the absorption sponge can continuously lubricate, improving the wear resistance of the bucket shaft and increasing the service life. Finally, a rubber ring is sleeved on the assembly hole of the shaft body, making the connection between the bucket shaft and the bucket more sealed, avoiding dust entering due to too large a gap. The structure of the present utility model is novel, the design is ingenious, and the practicability is strong, which is suitable for popularization.

[0026] The above is only the specific implementation manner of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantive improvement made to the present utility model using this concept should belong to the act of infringing the protection scope of the present utility model.

Claims

1. An excavator bucket shaft that is easy to install and maintain, characterized in that: It includes a connecting rod, a bucket and a bucket shaft. The connecting rod and the bucket are connected by the bucket shaft. The bucket shaft includes a shaft body and a positioning ring. The positioning ring is arranged on the left side of the shaft body. A rotating handle is arranged on the outer side of the positioning ring. A number of fixing rods are arranged between the rotating handle and the positioning ring. An internal hexagonal threaded groove is arranged in the middle of the left side surface of the positioning ring. A marking needle is arranged on one side of the internal hexagonal threaded groove. An assembly hole is arranged on the right side of the shaft body. An oil injection port is arranged on the top of the positioning ring. Oil outlet ports are symmetrically arranged on the left and right sides of the shaft body. The oil outlet ports are communicated with the oil injection port.

2. According to claim 1, an excavator bucket shaft that is easy to install and maintain, characterized in that: An "earth"-shaped oil delivery pipeline is arranged inside the shaft body. The top end of the oil delivery pipeline is communicated with the oil injection port. A cover body is arranged to be adapted to the oil injection port.

3. According to claim 1, the excavator bucket shaft that is easy to install and maintain is characterized in that: The marking needle is arranged corresponding to the assembly hole. The marking needle points to the perforation position of the assembly hole.

4. The excavator bucket shaft that is easy to install and maintain according to claim 1 is characterized in that: A pin hole is correspondingly arranged on the right side of the bucket. The pin hole is adapted to be paired with the assembly hole and a fixing bolt is arranged between them.

5. The excavator bucket shaft that is easy to install and maintain according to claim 1 is characterized in that: A rubber ring is sleeved on the assembly hole.

6. The excavator bucket shaft that is easy to install and maintain according to claim 1, characterized in that: A lubricating cavity is arranged at the oil outlet port. Filter nets are arranged on the front and back sides of the lubricating cavity. Absorbent sponges are arranged inside the filter nets.

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