A connection structure between bucket tooth and bucket tooth seat

Abstract

This patent discloses a connection structure between a bucket tooth and a bucket tooth seat, including an excavator bucket, a bucket tooth seat and a bucket tooth. The side wall of the excavator bucket is welded with a bucket tooth seat, and the bucket tooth is sleeved on the outside of the bucket tooth seat. The inner cavity of the bucket tooth seat is equipped with an oil storage cavity, and pin shafts are slidably installed on the left and right sides of the oil storage cavity. A slot is provided on the side wall of the bucket tooth, and the bucket tooth seat is inserted and installed in the slot. Positioning holes are provided on the left and right sides of the inner wall of the slot, and two pin shafts can be inserted into the two positioning holes respectively. This device injects hydraulic oil into its oil storage cavity to push its pin shaft outward into the positioning hole. Through this connection structure, there will be no holes on the outside of the bucket tooth, thereby preventing soil from entering the connection between the two and affecting the stability of the connection between the two. At the same time, when the bucket tooth needs to be disassembled and replaced, it only needs to be extracted through the oil inlet pipe to separate the bucket tooth from the bucket tooth seat. It is very convenient and quick, and the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] This patent relates to the field of excavator buckets, and specifically to a connection structure between bucket teeth and bucket tooth seats. Background Art

[0002] The bucket teeth of an excavator are important parts of the excavator. They are similar to human teeth and are also consumable parts. They are connected to the tooth seat by a pin. Since the worn and failed part is the tip of the bucket teeth, you only need to replace the bucket teeth;

[0003] In a connection structure between bucket teeth and tooth holders of an excavator proposed in the publication number CN218508542U, it is proposed that by rotating a screw rod, two clamping blocks are moved closer or farther from each other, thereby clamping or disengaging from a clamping groove, making it convenient for the bucket teeth to be connected to the tooth holder, simplifying the connection steps, facilitating manual operation, and enabling workers to quickly disassemble and assemble the bucket teeth, making disassembly and assembly convenient and improving disassembly and assembly efficiency;

[0004] However, in the connection structure proposed in the above document, since the bolts are exposed on the outside of the bucket teeth, when the excavator is working, the bolts are prone to friction with external soil or stones, causing themselves to rotate, thereby causing the bucket teeth to fall off easily. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of this patent is to provide a connection structure between bucket teeth and bucket tooth seats.

[0006] The technical solution adopted by this patent to solve its technical problem is: a connection structure between bucket teeth and bucket tooth seats, including an excavator bucket, a bucket tooth seat and bucket teeth, the side wall of the excavator bucket is welded with a bucket tooth seat, and the bucket teeth are sleeved on the outside of the bucket tooth seat;

[0007] The inner cavity of the bucket tooth seat is provided with an oil storage cavity, and pins are slidably installed on the left and right sides of the oil storage cavity. A slot is provided on the side wall of the bucket tooth, and the bucket tooth seat is inserted and installed in the slot. Positioning holes are provided on the left and right sides of the inner wall of the slot, and the two pins can be inserted into the two positioning holes respectively.

[0008] A groove is provided on the upper wall of the bucket tooth seat, one end of an oil inlet pipe is inserted into the groove, the other end of the oil inlet pipe is inserted into the oil storage chamber, an inner wall of the upper end of the oil inlet pipe is provided with an internal thread, a bolt is installed on the oil inlet pipe by threaded rotation, a piston is installed on the lower wall of the bolt, and the piston fits against the inner wall of the oil inlet pipe.

[0009] Furthermore, a support plate is installed on the inner wall of the oil storage cavity, and springs are installed on both the left and right sides of the support plate, and the two springs are respectively connected to the two pin shafts.

[0010] Furthermore, one end of the two pins located inside the oil storage cavity is installed with a rubber plug, and the rubber plug fits with the inner wall of the oil storage cavity.

[0011] Furthermore, a baffle cover is hingedly connected to the upper wall of the bucket tooth seat, a square block is installed on the side wall of the baffle cover, a slot is opened on the side wall of the groove, the square block can be inserted into the slot, and the square block can fit with the side wall of the bolt.

[0012] Furthermore, a protrusion is installed on the upper wall of the bucket tooth seat, and a clearance groove is opened on the upper wall of the bucket tooth, and the protrusion can be inserted into the clearance groove.

[0013] Furthermore, a sealing ring is installed on the side wall of the blocking cover, and the sealing ring can be inserted into the groove.

[0014] The beneficial effects of this patent are:

[0015] The device realizes the connection between the bucket tooth and the bucket tooth seat by injecting hydraulic oil into the oil storage chamber and pushing the pin shaft outward into the positioning hole. Through this connection structure, there will be no holes on the outside of the bucket tooth, thereby preventing mud from entering the connection between the two and affecting the stability of the connection between the two.

[0016] At the same time, when the bucket teeth need to be disassembled and replaced, it is only necessary to extract the hydraulic oil through the oil inlet pipe to separate the bucket teeth from the bucket tooth seat. This is very convenient and quick, and improves the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the side structure of this patent.

[0018] Figure 2 This is a schematic diagram of the top view structure of this patent.

[0019] Figure 3 This is a schematic diagram of the cover structure of this patent.

[0020] Explanation of the reference numerals: 1 excavator bucket, 2 bucket tooth seat, 3 bucket tooth, 4 oil storage chamber, 5 pin shaft, 6 slot, 7 positioning hole, 8 groove, 9 oil inlet pipe, 10 bolt, 11 piston, 12 sealing ring, 13 support plate, 14 spring, 15 rubber plug, 16 blocking cover, 17 square block, 18 slot, 19 protrusion, 20 clearance groove. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1 , Figure 2 , Figure 3 This is a schematic diagram of the structure of the patent, a connection structure of a bucket tooth and a bucket tooth seat, including an excavator bucket 1, a bucket tooth seat 2 and a bucket tooth 3, the side wall of the excavator bucket 1 is welded with the bucket tooth seat 2, and the bucket tooth 3 is sleeved on the outside of the bucket tooth seat 2;

[0023] The inner cavity of the bucket tooth seat 2 is provided with an oil storage cavity 4, and pin shafts 5 are slidably installed on the left and right sides of the oil storage cavity 4. A slot 6 is provided on the side wall of the bucket tooth 3, and the bucket tooth seat 2 is inserted and installed in the slot 6. Positioning holes 7 are provided on the left and right sides of the inner wall of the slot 6, and two pin shafts 5 can be respectively inserted into the two positioning holes 7;

[0024] The connection structure provided in this article is located inside the bucket tooth 3, and there is no hole outside the bucket tooth 3, so as to prevent the soil from penetrating into the bucket tooth 3 during the excavation work, thereby affecting the connection between the bucket tooth seat 2 and the bucket tooth 3;

[0025] The upper wall of the bucket tooth seat 2 is provided with a groove 8, one end of the oil inlet pipe 9 is inserted into the groove 8, and the other end of the oil inlet pipe 9 is inserted into the oil storage chamber 4. The inner wall of the upper end of the oil inlet pipe 9 is provided with an internal thread, and the oil inlet pipe 9 is installed with a bolt 10 by thread rotation. The lower wall of the bolt 10 is installed with a piston 11, and the piston 11 is in contact with the inner wall of the oil inlet pipe 4;

[0026] In addition, the device injects hydraulic oil into the oil inlet pipe 9, pushes out the pin 5 through the hydraulic oil, and inserts the pin 5 into the positioning hole 7 on the inner wall of the bucket tooth 3, thereby completing the connection between the bucket tooth seat 2 and the bucket tooth 3, which is very convenient and quick, and improves the disassembly and assembly efficiency.

[0027] A support plate 13 is installed on the inner wall of the oil storage chamber 4, and springs 14 are installed on both the left and right sides of the support plate 13. The two springs 14 are respectively connected to the two pins 5;

[0028] When the hydraulic oil is extracted, the pin 5 will be retracted into the oil storage chamber 4 under the action of the spring 14, thereby releasing the connection with the bucket tooth 3.

[0029] One end of the two pin shafts 5 located inside the oil storage cavity 4 is installed with a rubber plug 15 , and the rubber plug 15 is in contact with the inner wall of the oil storage cavity 4 .

[0030] The upper wall of the bucket tooth seat 2 is hinged with a cover 16, and the side wall of the cover 16 is installed with a square block 17. The side wall of the groove 8 is provided with a slot 18, and the square block 17 can be inserted into the slot 18, and the square block 17 can fit with the side wall of the bolt 11;

[0031] The blocking cover 16 can cover the groove 8 to prevent mud from entering the groove 8 and affecting the later removal of the bolt 10. At the same time, the side wall of the blocking cover 16 is also provided with a square block 17. When the square block 17 is inserted into the slot 18 and the groove 8, the side wall of the square block 17 will fit with the side wall of the bolt head of the bolt 10 to prevent the bolt 10 from loosening.

[0032] The upper wall of the bucket tooth seat 2 is provided with a protrusion 19, and the upper wall of the bucket tooth 3 is provided with a clearance groove 20, into which the protrusion 19 can be inserted;

[0033] The cooperation between the protrusion 19 and the clearance groove 20 can prevent the bucket tooth 3 from shaking after installation.

[0034] A sealing ring 12 is installed on the side wall of the blocking cover 16 , and the sealing ring 12 can be inserted into the groove 8 .

[0035] When installing the bucket tooth 3 in the present patent, the bucket tooth 3 is first sleeved on the outside of the bucket tooth seat 2, and then the staff unscrews the bolt 10 and injects hydraulic oil into the oil inlet pipe 9. The pin 5 is pushed out by the hydraulic oil, so that the pin 5 is inserted into the positioning hole 7 on the inner wall of the bucket tooth 3, and the connection between the bucket tooth seat 2 and the bucket tooth 3 is completed. Then the bolt 10 is screwed into the oil inlet pipe 9, and the hydraulic oil is squeezed by the piston under the bolt 10 to keep the hydraulic oil from pushing out the pin 5. Then the cover 16 is inserted into the groove 8 to complete the installation of the bucket tooth 3, which is very convenient.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A connection structure between a bucket tooth and a bucket tooth seat, comprising an excavator bucket (1), a bucket tooth seat (2) and a bucket tooth (3), characterized in that: A bucket tooth seat (2) is welded to the side wall of the excavator bucket (1), and the bucket teeth (3) are sleeved on the outside of the bucket tooth seat (2); The inner cavity of the bucket tooth seat (2) is provided with an oil storage cavity (4), and pin shafts (5) are slidably installed on the left and right sides of the oil storage cavity (4). The side wall of the bucket tooth (3) is provided with a slot (6), and the bucket tooth seat (2) is inserted and installed in the slot (6). The inner wall of the slot (6) is provided with positioning holes (7) on the left and right sides, and the two pin shafts (5) can be respectively inserted into the two positioning holes (7); The upper wall of the bucket tooth seat (2) is provided with a groove (8), one end of an oil inlet pipe (9) is inserted and installed in the groove (8), and the other end of the oil inlet pipe (9) is inserted into the oil storage chamber (4). The inner wall of the upper end of the oil inlet pipe (9) is provided with an internal thread, and a bolt (10) is installed on the oil inlet pipe (9) by rotating the thread. A piston (11) is installed on the lower wall of the bolt (10), and the piston (11) is in contact with the inner wall of the oil inlet pipe (9).

2. The connection structure between a bucket tooth and a bucket tooth seat according to claim 1, characterized in that: A support plate (13) is installed on the inner wall of the oil storage chamber (4), and springs (14) are installed on both left and right sides of the support plate (13), and the two springs (14) are respectively connected to the two pin shafts (5).

3. The connection structure between a bucket tooth and a bucket tooth seat according to claim 1, characterized in that: A rubber plug (15) is installed at one end of the two pin shafts (5) located inside the oil storage chamber (4), and the rubber plug (15) is in contact with the inner wall of the oil storage chamber (4).

4. The connection structure between a bucket tooth and a bucket tooth seat according to claim 1, characterized in that: The upper wall of the bucket tooth seat (2) is hingedly connected with a blocking cover (16), the side wall of the blocking cover (16) is installed with a square block (17), the side wall of the groove (8) is provided with a clamping groove (18), the square block (17) can be inserted into the clamping groove (18), and the square block (17) can fit with the side wall of the bolt (10).

5. The connection structure between a bucket tooth and a bucket tooth seat according to claim 1, characterized in that: A protrusion (19) is installed on the upper wall of the bucket tooth seat (2), and a clearance groove (20) is opened on the upper wall of the bucket tooth (3), and the protrusion (19) can be inserted into the clearance groove (20).

6. The connection structure between a bucket tooth and a bucket tooth seat according to claim 4, characterized in that: A sealing ring (12) is installed on the side wall of the blocking cover (16), and the sealing ring (12) can be inserted into the groove (8).

Images