Earthwork bucket with bucket teeth convenient to replace

Abstract

The earthwork bucket with the bucket teeth convenient to replace comprises a bucket body, the digging end of the bucket body is fixedly connected with a tooth holder, the tooth holder is detachably connected with the bucket teeth, the front end of the tooth holder is provided with a plug, and the side wall of the plug is fixedly connected with a locking protruding block. A rotating disc is arranged on the side wall of the inserting opening, and a locking groove is formed in the rotating disc in the radial direction of the rotating disc. The axis of the rotating disc is perpendicular to the plugging direction of the plug, and the rotating disc is driven by the driving piece to rotate around the axis of the rotating disc so as to change the orientation of the notch of the locking groove. When the notch faces the tail end of the bucket tooth, the bucket tooth is in an unlocking state, and the locking convex block can enter and exit from the locking groove, so that the bucket tooth is disassembled; when the notch faces the front end of the bucket tooth, the bucket tooth is in a locking state, the locking protruding block cannot enter and exit from the locking groove at the moment, and fixed connection between the bucket tooth and the tooth holder is achieved. And the rotating disc is driven by the driving piece and is not limited by narrow space between the bucket teeth, so that the convenience of replacing the bucket teeth of the earthwork bucket is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of earthwork buckets, in particular to an earthwork bucket which is convenient for replacing bucket teeth. Background Art

[0002] Earthmoving bucket, also known as excavation bucket, is a kind of engineering machinery accessory used for excavation, loading, transporting and unloading earth. The teeth of earthmoving bucket wear quickly when used and need to be replaced regularly. The existing bucket teeth and tooth seats are usually connected by tooth pins. When removing the bucket teeth, it is necessary to use a hammer to hit the top block to push the tooth pin out of the installation hole through the top block. When installing the bucket teeth, it is necessary to hit the tooth pin with a hammer to insert the tooth pin into the installation hole.

[0003] Then the distance between the bucket teeth of the earthmoving bucket is small, which limits the operating space when the tooth pins are disassembled and assembled, greatly increases the difficulty of disassembling and assembling the tooth pins, thereby reducing the convenience of replacing the bucket teeth of the earthmoving bucket.

[0004] Therefore, it is necessary to improve the earthwork bucket of the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art, provide an earthmoving bucket with easy replacement of bucket teeth, and improve the convenience of replacing bucket teeth in the earthmoving bucket.

[0006] To achieve the above purpose, the specific technical solution of the earthwork bucket that is easy to replace bucket teeth of the utility model is as follows:

[0007] A earthmoving bucket for easy replacement of bucket teeth comprises a bucket body, the excavation end of the bucket body is fixedly connected to a tooth seat, the tooth seat is detachably connected to the bucket teeth, the front end of the tooth seat is provided with a plug, the side wall of the plug is fixedly connected to a locking protrusion; the end of the bucket tooth is provided with a socket for plugging in the plug, the side wall of the socket is provided with a turntable, the turntable is provided with a locking groove for the locking protrusion to enter along its radial direction; the axis of the turntable is arranged perpendicular to the plugging and unplugging direction of the plug, and the turntable is driven by a driving member to rotate around its own axis to change the direction of the notch of the locking groove.

[0008] Preferably, two turntables are provided, and the two turntables are respectively arranged on the side walls opposite to each other of the socket, and the number of the locking protrusions is consistent with the number of the turntables and corresponds one to one.

[0009] Preferably, a recess is provided on the side wall of the socket, the turntable is plugged into the recess, a guide groove is also provided on the side wall of the recess, and when the notch of the locking groove faces the end of the bucket tooth, the locking groove and the guide groove are connected to each other.

[0010] Preferably, the driving member comprises a cylindrical hexagonal socket head, the turntable is coaxially fixedly connected to the hexagonal socket head, and the bottom wall of the recess is provided with a through hole which is plug-fitted with the hexagonal socket head.

[0011] Preferably, a second annular groove is circumferentially formed on the outer peripheral surface of the inner hexagon head, and a rubber ring is arranged in the second annular groove.

[0012] Preferably, a first annular groove is circumferentially formed on the outer periphery of the root of the plug, a sealing ring is arranged in the first annular groove, and the sealing ring is sealingly connected to the socket.

[0013] Preferably, a positioning groove is provided at the end of the tooth seat, and the digging end of the bucket body is plugged into and matched with the positioning groove.

[0014] Preferably, the thickness of the turntable is less than or equal to the depth of the recess, and the height of the hexagon socket head is less than or equal to the depth of the through hole.

[0015] The earthmoving bucket of the utility model which is convenient for replacing bucket teeth has the following advantages: the direction of the locking groove is changed by rotating the turntable, and when the groove is toward the end of the bucket teeth, it is in the unlocked state, and the locking protrusion can enter and exit the locking groove, thereby realizing the removal of the bucket teeth; when the groove is toward the front end of the bucket teeth, it is in the locked state, and at this time the locking protrusion cannot enter and exit the locking groove, thereby realizing the fixed connection between the bucket teeth and the tooth seat; the turntable is driven by the driving member and is not limited by the narrow space between the bucket teeth, thereby greatly improving the convenience of replacing the bucket teeth of the earthmoving bucket. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the connection structure between the bucket tooth and the tooth seat of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the gear seat of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the turntable of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the bucket tooth of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the turntable of the utility model;

[0022] Explanation of the markings in the figure: 1. bucket body; 2. tooth seat; 3. bucket teeth; 4. turntable; 201. sealing ring; 202. positioning groove; 203. plug; 204. locking protrusion; 205. first annular groove; 301. socket; 302. guide groove; 303. recess; 304. through hole; 401. rubber ring; 402. locking groove; 403. hexagon socket head; 404. second annular groove. DETAILED DESCRIPTION

[0023] 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.

[0024] The “top surface”, “bottom surface” and “underside” are based on the normal use state of the earth-moving bucket and are only for the convenience of describing the present invention and simplifying 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 a limitation on the present invention.

[0025] like Figure 1-6 As shown, an earth-moving bucket for easy replacement of bucket teeth comprises a bucket body 1, a tooth holder 2 is fixedly connected to the excavation end of the bucket body 1, a bucket tooth 3 is detachably connected to the tooth holder 2, a plug 203 is provided at the front end of the tooth holder 2, a locking protrusion 204 is fixedly connected to the side wall of the plug 203; the end of the bucket tooth 3 has a socket 301 for plugging in the plug 203, a turntable 4 is provided on the side wall of the socket 301, and the turntable 4 has a locking groove 402 along its radial direction for the locking protrusion 204 to enter; the axis of the turntable 4 is perpendicular to the plugging and unplugging direction of the plug 203, and the turntable 4 is driven by a driving member to rotate around its own axis to change the direction of the notch of the locking groove 402.

[0026] In the above-mentioned earthmoving bucket, the tooth seat 2 is fixed to the bucket body 1 by welding, and the bucket teeth 3 are installed on the tooth seat 2. The plug 202 and the socket 301 are limited to each other, which improves the firmness of the connection between the bucket teeth 3 and the tooth seat 2. During the use of the earthmoving bucket, the bucket teeth 3 come into contact with soil, gravel, etc., which causes the bucket teeth 3 to wear faster. For this reason, the bucket teeth 3 need to be replaced regularly. During the replacement process, the drive member drives the turntable 4 to rotate, and the rotation of the turntable 4 can change the direction of the notch of the locking groove 402. When the notch of the locking groove 402 is toward the end of the bucket tooth 3, the notch of the locking groove 402 is in the same direction as the opening direction of the socket 301, and the locking protrusion 204 can be released from the locking groove 402. The tooth 3 is then removed from the tooth holder 2 by pulling out the plug 203 from the notch 301. The tooth 3 is then removed from the tooth holder 2. The socket 301 of the new tooth 3 is then docked with the plug 203, and the locking protrusion 204 is inserted into the locking groove 402. The drive member is then used to drive the turntable 4 to rotate so that the notch of the locking groove 402 faces the front end of the tooth 3. At this time, the notch of the locking groove 402 faces the opposite direction of the opening of the socket 301 and switches to a locked state. In the locked state, the locking protrusion 204 abuts against the bottom of the locking groove 402. Under the limiting action of the locking groove 402, the plug 203 cannot be removed from the socket 301, thereby achieving a fixed connection between the tooth 3 and the tooth holder 2.

[0027] Compared with the existing method of connecting the tooth seat 2 and the bucket tooth 3 through a tooth pin, the turntable 4 is driven to rotate by a driving member to achieve locking and unlocking between the locking protrusion 204 and the locking groove 402, and finally realize the disassembly and assembly between the bucket tooth 3 and the tooth seat 2. In this way, the replacement of the bucket tooth 3 is not limited by the narrow space between the bucket teeth 3, which greatly improves the convenience of replacing the bucket teeth 3 of the earth-moving bucket.

[0028] A further improvement is, Figure 2-5 As shown, two rotating disks 4 are provided, and the two rotating disks 4 are respectively provided on the opposite side walls of the socket 301, and the number of locking protrusions 204 is consistent with the number of rotating disks 4, and they correspond one to one. Through the cooperation of the two sets of rotating disks 4 and the locking protrusions 204, the connection between the socket 301 and the plug 203 is realized, which can ensure that after the plug 203 and the socket 301 are connected, the force between the two is uniform, thereby improving the firmness of the connection between the tooth holder 2 and the bucket tooth 3.

[0029] A further improvement is, Figure 5As shown, a notch 303 is provided on the side wall of the socket 301, and the rotating disk 4 is plugged into the notch 303. A guide groove 302 is also provided on the side wall of the notch 303. When the notch of the locking groove 402 faces the end of the bucket tooth 3, the locking groove 402 and the guide groove 302 are connected to each other. The notch 303 is provided to accommodate the rotating disk 4, thereby improving the firmness of the installation of the rotating disk 4 on the bucket tooth 3, and finally improving the firmness of the connection between the bucket tooth 3 and the tooth seat 2; in the unlocked state, the guide groove 302 is connected to the locking groove 402, and the guide groove 302 is a through groove, and the width of the openings at both ends is greater than the width of the interior, so that the locking protrusion 204 can be guided by the guide groove 302 to facilitate the docking between the locking protrusion 204 and the locking groove 402; the rotating disk 4 is plugged into the notch 303, so that the rotating disk 4 can be conveniently removed and continued to be used. In the process of replacing the bucket tooth 3, the rotating disk 4 does not need to be frequently replaced, thereby reducing the use cost of the earthwork bucket.

[0030] A further improvement is, Figure 4-6 As shown, the driving member includes a cylindrical hexagonal head 403, the turntable 4 is coaxially fixedly connected with the hexagonal head 403, and the bottom wall of the recess 303 is provided with a through hole 304 that is plugged and matched with the hexagonal head 403. The setting of the through hole 304 can play a role in positioning the hexagonal head 403, and at the same time facilitate the hexagonal wrench to pass through the through hole 304 and dock with the hexagonal head 403. Since the hexagonal wrench is usually an L-shaped structure, after one end of it is docked with the hexagonal head 403, the hexagonal plate wrench can be easily rotated in the narrow space between the two bucket teeth 3, thereby greatly improving the convenience of replacing the bucket teeth 3; and the turntable 4 only needs to rotate 180 degrees to achieve the switching between the locked state and the unlocked state, thereby further reducing the range of rotation of the hexagonal wrench, and further improving the convenience of replacing the bucket teeth 3.

[0031] A further improvement is, Figure 6 As shown, the outer circumferential surface of the hexagon socket head 403 is provided with a second annular groove 404 in the circumferential direction, and a rubber ring 401 is arranged in the second annular groove 404. The second annular groove 404 serves to limit the rubber ring 401, thereby improving the firmness of the installation of the rubber ring 401. The provision of the rubber ring 401 can increase the friction between the hexagon socket head 403 and the inner wall of the through hole 304, thereby improving the stability of the rotating disk 4 when it is in a locked state, preventing the rotating disk 4 from rotating to an unlocked state due to vibration during the excavation of the earth bucket, thereby improving the stability of the installation of the bucket teeth 3 and the tooth seat 2; and the rubber ring 401 also serves as a seal, preventing mud or water from entering the socket 301 to cause wear or corrosion of the rotating disk 4, ensuring the smoothness of the rotating disk 4 when rotating, thereby improving the convenience of replacing the bucket teeth 3.

[0032] A further improvement is, Figure 2 and 3As shown, a first annular groove 205 is provided in the circumferential direction of the outer circumference of the root of the plug 203, and a sealing ring 201 is arranged in the first annular groove 205, and the sealing ring 201 is sealed and connected with the socket 301. The first annular groove 205 serves to limit the sealing ring 201, and improves the firmness of the installation of the sealing ring 201. The sealing ring 201 is used to improve the sealing effect between the socket 301 and the plug 203, prevent mud or water from entering the socket 301 to cause wear or corrosion of the rotating disk 4, ensure the smoothness of the rotating disk 4 when rotating, and thus improve the convenience of replacing the bucket teeth 3.

[0033] A further improvement is, Figure 3 As shown, a positioning groove 202 is provided at the end of the tooth holder 2, and the digging end of the bucket body 1 is plugged into the positioning groove 202. The setting of the positioning groove 202 can improve the stability of the connection between the tooth holder 2 and the bucket body 1, and improve the overall strength of the earth moving bucket.

[0034] A further improvement is, Figure 4 As shown, the thickness of the rotating disk 4 is less than or equal to the depth of the notch 303, and the height of the hexagon socket 403 is less than or equal to the depth of the through hole 304. The above arrangement allows the rotating disk 4 to be completely received in the notch 303, so that there is no raised part on the inner wall of the socket 301, thereby reducing the resistance when the plug 203 is inserted into the socket 301, and improving the convenience of installing the bucket tooth 2; and after the hexagon socket 403 is completely received in the through hole 304, during the excavation process, the contact between the hexagon socket 403 and the soil and gravel can be reduced, thereby reducing the wear of the hexagon socket 403 and facilitating the subsequent disassembly and assembly of the bucket tooth 3.

[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. An earthwork bucket with easy replacement of bucket teeth, comprising a bucket body (1), a tooth holder (2) fixedly connected to the digging end of the bucket body (1), a bucket tooth (3) detachably connected to the tooth holder (2), characterized in that: The front end of the tooth seat (2) is provided with a plug (203), and the side wall of the plug (203) is fixedly connected with a locking protrusion (204); The end of the bucket tooth (3) has a socket (301) for plugging the plug (203), a rotating disk (4) is provided on the side wall of the socket (301), and the rotating disk (4) has a locking groove (402) along its radial direction for the locking protrusion (204) to enter; The axis of the rotating disk (4) is arranged perpendicular to the plugging and unplugging direction of the plug (203), and the rotating disk (4) is driven by a driving member to rotate around its own axis to change the orientation of the notch of the locking groove (402).

2. The earthwork bucket with easy replacement of bucket teeth according to claim 1, characterized in that: Two rotating disks (4) are provided, and the two rotating disks (4) are respectively provided on two opposite side walls of the socket (301), and the number of the locking protrusions (204) is consistent with the number of the rotating disks (4), and corresponds one to one.

3. The earthwork bucket with easy replacement of bucket teeth according to claim 1 or 2, characterized in that: A notch (303) is provided on the side wall of the socket (301), the rotating disc (4) is plugged into the notch (303), a guide groove (302) is also provided on the side wall of the notch (303), and when the notch of the locking groove (402) faces the end of the bucket tooth (3), the locking groove (402) and the guide groove (302) are in communication with each other.

4. The earthwork bucket with easy replacement of bucket teeth according to claim 3, characterized in that: The driving member comprises a cylindrical hexagonal socket head (403), the rotating disk (4) is coaxially fixedly connected to the hexagonal socket head (403), and the bottom wall of the recess (303) is provided with a through hole (304) which is plug-fitted with the hexagonal socket head (403).

5. The earthwork bucket with easy replacement of bucket teeth according to claim 4, characterized in that: A second annular groove (404) is provided in the circumferential direction of the outer peripheral surface of the hexagon socket head (403), and a rubber ring (401) is arranged in the second annular groove (404).

6. The earthwork bucket with easy replacement of bucket teeth according to claim 1, characterized in that: A first annular groove (205) is provided in the circumferential direction of the outer periphery of the root of the plug (203), a sealing ring (201) is provided in the first annular groove (205), and the sealing ring (201) is sealedly connected to the socket (301).

7. The earthwork bucket with easy replacement of bucket teeth according to claim 1, characterized in that: A positioning groove (202) is provided at the end of the tooth seat (2), and the digging end of the bucket body (1) is plugged into and matched with the positioning groove (202).

8. The earthwork bucket with easy replacement of bucket teeth according to claim 4, characterized in that: The thickness of the rotating disk (4) is less than or equal to the depth of the recess (303), and the height of the hexagon socket head (403) is less than or equal to the depth of the through hole (304).

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