Excavator bucket tooth convenient to replace

Abstract

The excavator bucket tooth convenient to replace comprises bucket teeth, a bucket and a bolt, the number of the bucket teeth is four, a connecting plate is integrally formed at the left ends of the bucket teeth, a first round hole is formed in the connecting plate, and a dismounting opening is formed in the lower side of the left end of the inner side wall of the first round hole. When a certain bucket tooth needs to be replaced, only the positioning piece needs to be detached, then the rod body is rotated by 90 degrees, the section of the rod body completely corresponds to the detaching opening, then the bucket tooth to be replaced is pulled out rightwards, and the whole bolt does not need to be pulled out of the mounting plate. Operation is convenient, and practicability is high.

Description

Technical Field

[0001] This patent relates to the field of bucket tooth technology, specifically an excavator bucket tooth that is easy to replace. Background Art

[0002] The bucket of the excavator is provided with bucket teeth. Since the bucket teeth are consumable structures, they need to be replaced frequently. Currently, a connecting plate is provided on one side of the bucket teeth. The connecting plate can be inserted into the slot of the bucket mounting plate, and then a longer bolt passes through multiple connecting plates and is connected to the nut. However, when one of the bucket teeth needs to be replaced, the entire bolt needs to be pulled out of the mounting plate for replacement. After the bucket teeth are replaced, the bolts need to be reinserted into the mounting plate and multiple connecting plates. This is inconvenient to operate and is not convenient for replacing the bucket teeth. For this reason, we propose an excavator bucket tooth that is easy to replace. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this patent is to provide an excavator bucket tooth that is easy to replace. This patent divides the bolt into a circular plate, a rod body and a screw. A positioning piece is provided on the circular plate. The cross-section of the rod body is similar to a semicircle. A disassembly port is provided on the left side of the first circular hole of the connecting plate. When a bucket tooth needs to be replaced, it is only necessary to remove the positioning piece, and then rotate the rod body ninety degrees so that the cross-section of the rod body completely corresponds to the disassembly port, and then pull out the bucket tooth to be replaced to the right. There is no need to pull the overall bolt out of the mounting plate. It is easy to operate and has strong practicality.

[0004] The technical solution adopted by the present patent to solve its technical problem is: an excavator bucket tooth that is easy to replace, including a bucket tooth, a bucket and a bolt, the number of the bucket teeth is four, the left end of the bucket tooth is integrally formed with a connecting plate, the connecting plate is provided with a first circular hole, and a disassembly opening is provided on the lower side of the left end of the inner side wall of the first circular hole;

[0005] The bottom side of the bucket is integrally formed with a mounting plate, a second circular hole is provided in the middle of the mounting plate, a rectangular slot is provided on the right side of the mounting plate, the number of the rectangular slots is four, the connecting plate is inserted into the rectangular slot, the rectangular slot is vertically connected to the second circular hole, the bolt comprises a circular plate, a rod body is integrally formed on the front side of the circular plate, the cross section of the rod body is semicircular, the front end of the rod body passes through the first circular hole and the second circular hole to be integrally formed with a screw, and the front end of the screw is screwed with a nut;

[0006] A positioning piece is arranged on the rear side of the circular plate.

[0007] Furthermore, the positioning member includes a horizontal plate and a fastening bolt, a square column is integrally formed in the middle of the front side surface of the horizontal plate, a square groove is provided in the middle of the rear side of the circular plate, the square column is inserted into the square groove, circular holes are provided on both sides of the horizontal plate, and threaded grooves are provided on both sides of the rear end of the mounting plate, and the ends of the fastening bolts pass through the circular holes and are screwed into the threaded grooves.

[0008] Furthermore, a first circular groove is provided in the middle of the rear end of the mounting plate, and the circular plate is completely located in the first circular groove.

[0009] Furthermore, the side wall of the circular plate does not contact the inner side wall of the first circular groove.

[0010] Furthermore, the diameter of the screw is smaller than the diameter of the second circular hole.

[0011] Furthermore, a second circular groove is provided at the front end of the mounting plate, the nut is completely located in the second circular groove, and the outer side wall of the nut does not contact the inner side wall of the second circular groove.

[0012] The beneficial effects of this patent are:

[0013] 1. This patent divides the bolt into a circular plate, a rod body and a screw. A positioning piece is provided on the circular plate. The cross section of the rod body is semicircular. A disassembly port is provided on the left side of the first circular hole of the connecting plate. When a bucket tooth needs to be replaced, only the positioning piece needs to be removed, and then the rod body is rotated 90 degrees so that the cross section of the rod body completely corresponds to the disassembly port, and then the bucket tooth to be replaced is pulled out to the right. There is no need to pull the integral bolt out of the mounting plate. The operation is convenient and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the patent structure.

[0015] Figure 2 This is a top view of the cross-section of the patented mounting plate.

[0016] Figure 3 This is a cross-sectional view of the patented connecting plate and rod body.

[0017] Figure 4 This is a schematic diagram of the positioning part of this patent.

[0018] Explanation of the reference numerals: 1 bucket tooth, 2 connecting plate, 3 first circular hole, 4 disassembly opening, 5 bucket, 6 mounting plate, 7 second circular hole, 8 rectangular slot, 9 circular plate, 10 rod body, 11 screw rod, 12 nut, 13 positioning piece, 14 cross plate, 15 square column, 16 square groove, 17 fastening bolt, 18 first circular groove, 19 second circular groove. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0020] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 This is a schematic diagram of the structure of the patent, an excavator bucket tooth that is easy to replace, including a bucket tooth 1, a bucket 5 and a bolt, the number of bucket teeth 1 is four, the left end of the bucket tooth 1 is integrally formed with a connecting plate 2, the connecting plate 2 is provided with a first circular hole 3, and a disassembly opening 4 is provided on the lower left side of the inner side wall of the first circular hole 3;

[0021] like Figure 3 As shown, the cross-sectional view of the rod body 10 is slightly larger than the semi-circular shape. When the rod body 10 is rotated 90 degrees, Figure 3 The right side of the middle rod body 10 is rotated to a horizontal state, and the connecting plate 2 can be pulled out to the right at this time.

[0022] The bottom side of the bucket 5 is integrally formed with a mounting plate 6, a second circular hole 7 is provided in the middle of the mounting plate 6, a rectangular slot 8 is provided on the right side of the mounting plate 6, the number of the rectangular slots 8 is four, the connecting plate 2 is inserted into the rectangular slot 8, the rectangular slot 8 is vertically connected with the second circular hole 7, the bolt includes a circular plate 9, the front side of the circular plate 9 is integrally formed with a rod body 10, the cross section of the rod body 10 is semicircular, the front end of the rod body 10 passes through the first circular hole 3 and the second circular hole 7 to be integrally formed with a screw rod 11, and the front end of the screw rod 11 is screwed with a nut 12;

[0023] A positioning member 13 is provided on the rear side of the circular plate 9 .

[0024] Specifically, the positioning member 13 includes a horizontal plate 14 and a fastening bolt 17. A square column 15 is integrally formed in the middle of the front side surface of the horizontal plate 14. A square groove 16 is provided in the middle of the rear side of the circular plate 9. The square column 15 is inserted into the square groove 16. Circular holes are provided on both sides of the horizontal plate 14. Threaded grooves are provided on both sides of the rear end of the mounting plate 6. The ends of the fastening bolts 17 pass through the circular holes and are screwed into the threaded grooves.

[0025] By inserting the square column 15 into the square groove 16, the rotation of the circular plate 9 can be avoided.

[0026] Specifically, a first circular groove 18 is provided in the middle of the rear end of the mounting plate 6 , and the circular plate 9 is completely located in the first circular groove 18 .

[0027] By providing the first circular groove 18 for accommodating the circular plate 9, the flattening effect of the rear side of the mounting plate 6 can be increased.

[0028] Specifically, the side wall of the circular plate 9 does not contact the inner side wall of the first circular groove 18 .

[0029] By preventing the side wall of the circular plate 9 from contacting the inner wall of the first circular groove 18 , it is possible to avoid rotation resistance caused by the contact between the side wall and the inner wall when the circular plate 9 is rotated.

[0030] Specifically, the diameter of the screw rod 11 is smaller than the diameter of the second circular hole 7 .

[0031] Since the diameter of the screw rod 11 is smaller than the diameter of the second circular hole 7 , it is possible to prevent the screw rod 11 from rotating with the rod body 10 and causing the thread on the side wall of the screw rod 11 to wear.

[0032] Specifically, a second circular groove 19 is provided at the front end of the mounting plate 6 , the nut 12 is completely located in the second circular groove 19 , and the outer side wall of the nut 12 does not contact the inner side wall of the second circular groove 19 .

[0033] By providing the second circular groove 19 , the nut 12 can be accommodated, thereby increasing the flatness of the front side of the mounting plate 6 .

[0034] Working principle: When one of the bucket teeth 1 is seriously worn and needs to be replaced, it is necessary to loosen the nut 12 (so that the nut 12 no longer presses the mounting plate 6 and does not need to be separated from the screw 11), then remove the fastening bolt 17 and separate the square column 15 from the square groove 16, then rotate the circular plate 9 90 degrees, and at the same time rotate the rod body 10 90 degrees, so that Figure 3 The right side of the middle rod body 10 is rotated to a horizontal state (the top of the rod body 10 is slightly lower than the top wall of the disassembly opening 4 after the rotation). At this time, the bucket tooth 1 to be replaced can be moved to the right, and the connecting plate 2 is disengaged from the rectangular slot 8. When installing a new bucket tooth 1, the reverse process of the above process can be implemented.

[0035] It should be noted that the equipment structure and drawings of this patent mainly describe the principles of this patent. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that technical personnel in this field understand the principles of the above patent, they can clearly know the details of its power mechanism, power supply system and control system.

[0036] This patent divides the bolt into a circular plate, a rod body and a screw. A positioning piece is provided on the circular plate. The cross-section of the rod body is similar to a semicircle. A disassembly port is provided on the left side of the first circular hole of the connecting plate. When a bucket tooth needs to be replaced, it is only necessary to remove the positioning piece, and then rotate the rod body 90 degrees so that the cross-section of the rod body completely corresponds to the disassembly port, and then pull out the bucket tooth to be replaced to the right. There is no need to pull the overall bolt out of the mounting plate. The operation is convenient and practical.

[0037] In the description of this patent, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixed installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to the specific circumstances.

[0038] Although the embodiments of the present patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present patent, and the scope of the present patent is defined by the appended claims and their equivalents.

Claims

1. An excavator bucket tooth that is easy to replace, characterized in that: It comprises a bucket tooth (1), a bucket (5) and bolts, wherein the number of the bucket teeth (1) is four, a connecting plate (2) is integrally formed at the left end of the bucket tooth (1), a first circular hole (3) is provided on the connecting plate (2), and a disassembly opening (4) is provided at the lower left side of the inner side wall of the first circular hole (3); The bottom side of the bucket (5) is integrally formed with a mounting plate (6), a second circular hole (7) is provided in the middle of the mounting plate (6), a rectangular slot (8) is provided on the right side of the mounting plate (6), the number of the rectangular slots (8) is four, the connecting plate (2) is inserted into the rectangular slot (8), the rectangular slot (8) is vertically connected to the second circular hole (7), the bolt comprises a circular plate (9), a rod body (10) is integrally formed on the front side of the circular plate (9), the cross section of the rod body (10) is semicircular, the front end of the rod body (10) passes through the first circular hole (3) and the second circular hole (7) to be integrally formed with a screw rod (11), the front end of the screw rod (11) is screwed with a nut (12); A positioning piece (13) is provided on the rear side of the circular plate (9).

2. The excavator bucket tooth that is easily replaceable according to claim 1, characterized in that: The positioning member (13) comprises a transverse plate (14) and a fastening bolt (17); a square column (15) is integrally formed in the middle of the front side surface of the transverse plate (14); a square groove (16) is provided in the middle of the rear side of the circular plate (9); the square column (15) is inserted into the square groove (16); circular holes are provided on both sides of the transverse plate (14); threaded grooves are provided on both left and right sides of the rear end of the mounting plate (6); and the ends of the fastening bolts (17) pass through the circular holes and are screwed into the threaded grooves.

3. The excavator bucket tooth that is easily replaceable according to claim 1, characterized in that: A first circular groove (18) is provided in the middle of the rear end of the mounting plate (6), and the circular plate (9) is completely located in the first circular groove (18).

4. The excavator bucket tooth that is easily replaceable according to claim 3, characterized in that: The side wall of the circular plate (9) does not contact the inner side wall of the first circular groove (18).

5. The excavator bucket tooth that is easily replaceable according to claim 1, characterized in that: The diameter of the screw rod (11) is smaller than the diameter of the second circular hole (7).

6. The excavator bucket tooth that is easily replaceable according to claim 1, characterized in that: A second circular groove (19) is provided at the front end of the mounting plate (6), the nut (12) is completely located in the second circular groove (19), and the outer side wall of the nut (12) does not contact the inner side wall of the second circular groove (19).

Images