Rotary lock catch bucket tooth

Abstract

The utility model belongs to the technical field of excavator accessories, and provides a rotary lock catch bucket tooth which comprises a plurality of tooth holders fixedly connected with a bucket. The tooth tips are detachably connected to the end, away from the bucket, of the tooth holder, a rotary lock catch assembly is arranged between the tooth holder and the inner side of the tooth tips, the tooth tips are detachably connected with the tooth holder through the rotary lock catch assembly, and an anti-rotation assembly is further arranged between the tooth tips and the tooth holder. And the anti-rotation assembly is used for preventing the tooth tip from rotating relative to the tooth holder. The tooth tip of the bucket tooth can be conveniently replaced, and the bearing capacity of the bucket tooth can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavator accessories, and in particular relates to a rotary locking bucket tooth. Background Art

[0002] The excavator bucket is one of the components of the excavator, and its basic function is to realize the excavation and loading of soil. The bucket is usually fixed with teeth. Since the excavation function of the excavator is realized by the bucket, the bucket will directly contact the material, causing the teeth on the bucket to wear frequently. In order to reduce the replacement cost, people have developed a bucket with detachable teeth.

[0003] The defects of the existing excavator bucket are: when the excavator bucket is excavating, there will be more or less stones or other hard objects in the excavation site, and the bucket tooth tip will be subjected to large longitudinal force, which may easily cause friction and wear or breakage of the bucket teeth on the excavator bucket. In this case, the damaged or severely worn bucket teeth on the excavator bucket need to be maintained or replaced. Since the installation and fixation requirements of the bucket teeth are relatively strict and the removal is too complicated, it is easy to be difficult to remove and replace them. At the same time, the bucket teeth on the excavator bucket have a large contact area with the excavation site, which is prone to deformation. The force required for excavation also needs to be increased, and the wear degree of the excavator bucket also increases, thereby reducing the durability of the excavator bucket and affecting the use effect of the excavator bucket. Utility Model Content

[0004] The utility model aims to provide a rotary locking bucket tooth to solve the above problems, so as to facilitate the replacement of the tooth tip of the bucket tooth and improve the bearing capacity of the bucket tooth.

[0005] To achieve the above purpose, the utility model provides the following solution: a rotary locking bucket tooth, comprising:

[0006] A plurality of tooth seats, wherein the plurality of tooth seats are fixedly connected to the bucket;

[0007] A plurality of tooth tips, wherein the tooth tips are detachably connected to an end of the tooth seat away from the bucket, a rotary locking assembly is provided between the tooth seat and the inner side of the tooth tips, the tooth tips are detachably connected to the tooth seat via the rotary locking assembly, an anti-rotation assembly is also provided between the tooth tips and the tooth seat, and the anti-rotation assembly is used to prevent the tooth tips from rotating relative to the tooth seat.

[0008] Preferably, a connecting hole is opened inwardly at one end of the tooth tip close to the tooth seat, a connecting column is fixedly connected to one end of the tooth seat close to the tooth tip, the connecting hole is adapted to the connecting column, and the rotary locking assembly is arranged between the connecting hole and the connecting column.

[0009] Preferably, the rotary locking component includes a slider and an axial chute. The slider is fixedly connected to the inner wall of the connection hole. The axial chute is arranged on the side wall of the connection column along the axial direction of the connection column. A circumferential chute is also formed on the side wall of the connection column. One end of the circumferential chute communicates with one end of the axial chute close to the tooth base. The slider is slidably connected in the axial chute and the circumferential chute.

[0010] Preferably, a plurality of groups of sliders are fixedly connected to the connection hole along the circumferential direction. The plurality of sliders are equally spaced on the inner wall of the connection hole. A plurality of axial chutes are formed on the side wall of the connection column. The plurality of axial chutes are equally spaced on the connection column. One end of each of the plurality of axial chutes close to the tooth base communicates with a circumferential chute respectively. The plurality of sliders are respectively arranged corresponding to the plurality of axial chutes and circumferential chutes.

[0011] Preferably, a plurality of circumferential chutes are formed on the same side wall of the axial chute along the axial direction of the connection column. A plurality of sliders are fixedly connected to the inner wall of the connection hole along the axial direction. The plurality of sliders are respectively arranged corresponding to the plurality of circumferential chutes.

[0012] Preferably, the anti-rotation component includes a locking bolt, a through hole formed on the tooth tip, and a threaded hole formed on the side wall of the connection column. The through hole penetrates the connection hole. After the rotary locking component locks the tooth tip on the tooth base, the threaded end of the locking bolt penetrates the through hole and is threadedly connected in the threaded hole.

[0013] Compared with the prior art, the present utility model has the following advantages and technical effects: The main function of the tooth base is to fix the tooth tip on the bucket; the main function of the rotary locking component is to fix the tooth tip and the tooth base by rotating the tooth tip, and at the same time facilitate the disassembly, assembly and replacement of the tooth tip on the tooth base; the main function of the anti-rotation component is to prevent the tooth tip from rotating relative to the tooth base after the rotary locking component connects the tooth tip and the tooth base, thereby ensuring the connection effectiveness of the rotary locking component. Overall, the present utility model realizes the quick locking or unlocking operation between the tooth tip and the tooth base through the rotary locking, is easy to replace the bucket teeth, improves the service life of the bucket. At the same time, by hiding the rotary locking component inside the tooth tip, the influence of external forces and particulate matter during the working process can be isolated, effectively reducing wear and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the bucket tooth of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the rotary lock assembly of the present invention;

[0017] Figure 3 It is another structural schematic diagram of the rotary lock assembly of the present invention;

[0018] Figure 4 It is a structural schematic diagram of the tooth tip of the present invention;

[0019] Figure 5 It is a structural schematic diagram of the tooth base of the present invention;

[0020] Figure 6 It is a structural schematic diagram of the tooth tip mold of the present invention.

[0021] Among them, 1, tooth tip; 2, tooth base; 3, locking bolt; 4, pulse power supply; 5, connection hole; 6, connection column; 7, axial chute; 8, circumferential chute; 9, slider; 10, through hole; 11, threaded hole. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0024] Embodiment 1:

[0025] Referring to Figures 1-6 , the present invention provides a rotary lock bucket tooth, including:

[0026] A plurality of tooth bases 2, and the plurality of tooth bases 2 are fixedly connected to the bucket;

[0027] A plurality of tooth tips 1 are detachably connected to one end of the tooth base 2 away from the bucket. A rotary locking component is arranged between the tooth base 2 and the inner side of the tooth tip 1. The tooth tip 1 is detachably connected to the tooth base 2 through the rotary locking component. An anti-rotation component is also arranged between the tooth tip 1 and the tooth base 2, and the anti-rotation component is used to prevent the tooth tip 1 from rotating relative to the tooth base 2.

[0028] The main function of the tooth base 2 is to fix the tooth tip 1 on the bucket; the main function of the rotary locking component is to fix the tooth tip 1 and the tooth base 2 by rotating the tooth tip 1, and at the same time facilitate the disassembly, installation and replacement of the tooth tip 1 on the tooth base 2; the main function of the anti-rotation component is to prevent the tooth tip 1 from rotating relative to the tooth base 2 after the rotary locking component connects the tooth tip 1 and the tooth base 2, thereby ensuring the connection effectiveness of the rotary locking component. Overall, the utility model realizes the quick locking or unlocking operation between the tooth tip and the tooth base through the rotary locking, which is easy to replace the bucket teeth and improves the service life of the bucket. At the same time, by hiding the rotary locking component inside the tooth tip, the influence of external forces and particulate matters during the working process can be isolated, effectively reducing wear and increasing the service life.

[0029] In a further optimized solution, a connection hole 5 is opened inward at one end of the tooth tip 1 close to the tooth base 2, and a connection column 6 is fixedly connected to one end of the tooth base 2 close to the tooth tip 1. The connection hole 5 is adapted to the connection column 6, and the rotary locking component is arranged between the connection hole 5 and the connection column 6.

[0030] As Figure 2 and Figure 3 shown, the rotary locking component is arranged in the connection hole 5, which can effectively prevent damage to it from the external environment.

[0031] In a further optimized solution, the rotary locking component includes a slider 9 and an axial chute 7. The slider 9 is fixedly connected to the inner wall of the connection hole 5. The axial chute 7 is arranged on the side wall of the connection column 6 along the axial direction of the connection column 6. A circumferential chute 8 is also opened on the side wall of the connection column 6. One end of the circumferential chute 8 is communicated with one end of the axial chute 7 close to the tooth base 2, and the slider 9 is slidably connected in the axial chute 7 and the circumferential chute 8.

[0032] As Figure 2 and Figure 3 shown, when the tooth tip 1 needs to be installed on the tooth base 2, align the connection hole 5 with the connection column 6. Then, push the tooth tip 1 to make the slider 9 slide into the axial chute 7 in a sliding manner. After sliding to the working position, the slider 9 is aligned with the circumferential chute 8. At this time, rotate the tooth tip 1 clockwise to make the slider 9 slide into the circumferential chute 8 to realize the axial positioning of the tooth tip 1. At this time, the tooth tip 1 is connected to the tooth base 2.

[0033] The utility model fixes the tooth tip 1 at the working position on the tooth base 2 by means of the connection of the axial sliding groove 7 and the circumferential sliding groove 8, wherein the circumferential sliding groove 8 can realize the axial fixation of the tooth tip 1 and increase the axial bearing capacity during the operation of the bucket tooth.

[0034] In a further optimized solution, a plurality of groups of sliders 9 are fixedly connected along the circumferential direction inside the connection hole 5, and the plurality of sliders 9 are equally spaced on the inner wall of the connection hole 5. A plurality of axial sliding grooves 7 are formed on the side wall of the connection column 6, and the plurality of axial sliding grooves 7 are equally spaced on the connection column 6. One end of each of the plurality of axial sliding grooves 7 close to the tooth base 2 is respectively communicated with a circumferential sliding groove 8, and the plurality of sliders 9 are respectively arranged corresponding to the plurality of axial sliding grooves 7 and circumferential sliding grooves 8.

[0035] In a further optimized solution, a plurality of circumferential sliding grooves 8 are formed along the axial direction of the connection column 6 on the same side wall of the axial sliding groove 7, and a plurality of sliders 9 are fixedly connected along the axial direction on the inner wall of the connection hole 5, and the plurality of sliders 9 are respectively arranged corresponding to the plurality of circumferential sliding grooves 8.

[0036] As Figure 4 and Figure 5 shown, by equally spacing three groups of sliders 9 in the connection hole 5 and equally spacing three groups of axial sliding grooves 7 on the outer wall of the connection column 6, the connection stability can be improved. At the same time, on the inner wall of the connection hole 5, two groups of sliders 9 are arranged along the axial direction of the connection hole 5 at each angle. At the same time, two groups of circumferential sliding grooves 8 are communicated on the same side wall of the axial sliding groove 7. By engaging the two groups of sliders 9 into the two groups of circumferential sliding grooves 8, the connection strength is improved.

[0037] In a further optimized solution, the anti-rotation assembly includes a locking bolt 3, a through hole 10 formed in the tooth tip 1, and a threaded hole 11 formed in the side wall of the connection column 6. The through hole 10 penetrates through the connection hole 5. After the rotary locking component locks the tooth tip 1 on the tooth base 2, the threaded end of the locking bolt 3 penetrates through the through hole 10 and is threadedly connected in the threaded hole 11.

[0038] As Figure 1 and Figure 2 shown, the length of the circumferential sliding groove 8 is set to ensure that after rotating the tooth tip 1 and making the slider 9 contact the end of the circumferential sliding groove 8, the through hole 10 and the threaded hole 11 are in an aligned state. At this time, the locking bolt 3 is used to penetrate through the through hole 10 and tightened in the threaded hole 11. The angle between the tooth tip 1 and the tooth base 2 is fixed by the locking bolt 3 to prevent relative rotation between the two, thereby improving the connection stability.

[0039] In a further optimized solution, a resin dust cover is detachably connected to the through hole 10. After the locking bolt 3 is screwed in, the resin dust cover is buckled on the through hole 10, which can protect the locking bolt 3 and reduce the scratch and wear of the bolt caused by grit.

[0040] Embodiment 2:

[0041] A forming method for a rotary locking bucket tooth, which is used to produce the rotary locking bucket tooth in Embodiment 1. The operation steps include:

[0042] Manufacture the tooth tip 1 and the tooth seat 2 respectively by casting method;

[0043] Polish and grind the surface of the tooth tip 1;

[0044] For the parts with special requirements on the tooth tip 1, simple processing is required. Generally, a grinding wheel or a grinder is used for processing and grinding to remove burrs and make the surface of the tooth tip 1 smoother.

[0045] Perform heat treatment on the tooth seat 2.

[0046] By performing heat treatment on the tooth seat 2, the strength, hardness of the axial chute 7 and the circumferential chute 8 can be improved, and the wear resistance can be enhanced.

[0047] For a further optimized solution, the tooth tip 1 is made by sand casting method, which mainly includes the following processes:

[0048] Sand mixing stage: Prepare molding sand and core sand for molding.

[0049] Mold making stage: Make molds and core boxes according to the part drawings. Generally, a wooden mold can be used for single-piece production, plastic molds or metal molds can be made for batch production, and a template can be made for large-batch castings.

[0050] Modeling (core making) stage: Includes modeling (forming the cavity of the casting with molding sand), core making (forming the internal shape of the casting), and mold assembly (putting the core into the cavity and closing the upper and lower sand boxes).

[0051] Melting stage: Mix the chemical components according to the required metal components, select a suitable melting furnace to melt the alloy material to form qualified liquid metal.

[0052] Pouring stage: Pour the molten iron in the electric furnace into the prepared mold with an iron ladle. Attention should be paid to the pouring speed when pouring the molten iron to fill the entire cavity.

[0053] Cleaning stage: After pouring, wait for the molten metal to solidify, then use a hammer to remove the gating and shake off the sand on the casting, and then use a sandblaster for sandblasting.

[0054] For a further optimized solution, apply a pulsed current to the tooth seat 2 using the pulsed power supply 4 to perform heat treatment on the tooth seat 2.

[0055] As Figure 1 shown, before the tooth device of the present utility model works, apply a pulsed current to both sides of the tooth seat 2 using the pulsed power supply 4 to perform heat treatment on the tooth seat 2, and improve the strength, hardness and wear resistance of the tooth seat 2, the connecting column 6, the axial chute 7 and the circumferential chute 8.

[0056] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0057] The embodiments described above are only descriptions of the preferred modes of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A rotary locking bucket tooth, characterized in that: include: A plurality of tooth seats (2), wherein the plurality of tooth seats (2) are fixedly connected to the bucket; A plurality of tooth tips (1), wherein the tooth tips (1) are detachably connected to an end of the tooth seat (2) away from the bucket, a rotary lock assembly is provided between the tooth seat (2) and the inner side of the tooth tips (1), and the tooth tips (1) are detachably connected to the tooth seat (2) via the rotary lock assembly, and an anti-rotation assembly is also provided between the tooth tips (1) and the tooth seat (2), and the anti-rotation assembly is used to prevent the tooth tips (1) from rotating relative to the tooth seat (2).

2. The rotary locking bucket tooth according to claim 1, characterized in that: A connecting hole (5) is provided inwardly at one end of the tooth tip (1) close to the tooth seat (2); a connecting column (6) is fixedly connected to one end of the tooth seat (2) close to the tooth tip (1); the connecting hole (5) is adapted to the connecting column (6); and the rotary lock assembly is arranged between the connecting hole (5) and the connecting column (6).

3. The rotary locking bucket tooth according to claim 2, characterized in that: The rotary lock assembly comprises a slider (9) and an axial slide groove (7), wherein the slider (9) is fixedly connected to the inner wall of the connecting hole (5), and the axial slide groove (7) is opened on the side wall of the connecting column (6) along the axial direction of the connecting column (6). A circumferential slide groove (8) is also opened on the side wall of the connecting column (6), and one end of the circumferential slide groove (8) is connected to one end of the axial slide groove (7) close to the gear seat (2), and the slider (9) is slidably connected in the axial slide groove (7) and the circumferential slide groove (8).

4. The rotary locking bucket tooth according to claim 3, characterized in that: A plurality of groups of sliding blocks (9) are fixedly connected in the circumferential direction in the connecting hole (5), and the plurality of sliding blocks (9) are evenly spaced on the inner wall of the connecting hole (5). A plurality of axial sliding grooves (7) are provided on the side wall of the connecting column (6), and the plurality of axial sliding grooves (7) are evenly spaced on the connecting column (6). The ends of the plurality of axial sliding grooves (7) close to the gear seat (2) are respectively connected to the circumferential sliding grooves (8), and the plurality of sliding blocks (9) are respectively arranged corresponding to the plurality of axial sliding grooves (7) and the circumferential sliding grooves (8).

5. The rotary locking bucket tooth according to claim 4, characterized in that: A plurality of circumferential sliding grooves (8) are provided on the same side wall of the axial sliding groove (7) along the axial direction of the connecting column (6); a plurality of sliding blocks (9) are fixedly connected to the inner wall of the connecting hole (5) along the axial direction; and the plurality of sliding blocks (9) are respectively provided corresponding to the plurality of circumferential sliding grooves (8).

6. The rotary locking bucket tooth according to claim 2, characterized in that: The anti-rotation assembly comprises a locking bolt (3), a through hole (10) provided on the tooth tip (1), and a threaded hole (11) provided on the side wall of the connecting column (6); the through hole (10) passes through the connecting hole (5); after the rotary locking assembly locks the tooth tip (1) on the tooth seat (2), the threaded end of the locking bolt (3) passes through the through hole (10) and is threadedly connected in the threaded hole (11).

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