Bucket tooth

Abstract

The invention provides a bucket tooth which solves the technical problems that in the background technology, the joint of a pin shaft is prone to being covered with dust, and a tooth tip is not prone to being found out to be replaced. The bucket tooth comprises a tooth holder, a mounting opening is formed in one end of the tooth holder, the tooth holder is fixedly arranged at one end of a bucket through the mounting opening, the periphery of the tooth holder is sleeved with a tooth tip, a connecting cavity is formed in the tooth tip, one end of the tooth holder extends into the connecting cavity, and the tooth holder is detachably connected with the tooth tip. A dust cover is arranged on the periphery of the tooth holder in a sleeved mode, the dust cover partially covers the periphery of the tooth tip and shields the connecting position of the tooth holder and the tooth tip, the dust cover is used for protecting the connecting position of the tooth tip and the tooth holder, and dust shielding is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of bucket teeth, and particularly to a bucket tooth. Background Art

[0002] The bucket tooth of an excavator is an important component on the excavator. Similar to human teeth, it is also a vulnerable part. It is a combined bucket tooth composed of a tooth seat and a tooth tip, and the two are connected by a pin shaft. Since the worn-out part of the bucket tooth is the tooth tip, only the tooth tip needs to be replaced.

[0003] After the bucket tooth is used for a long time, various dusts will adhere to the surface of the bucket tooth, covering the pin shaft connection. When replacing the tooth tip, it is impossible to find the pin shaft connection in time. Workers need to clean the bucket tooth to find the pin shaft connection, and the dust increases the friction between the pin shaft and the tooth tip, making it more troublesome to replace the tooth tip and reducing the work efficiency. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the present invention provides a bucket tooth, which solves the technical problem that the pin shaft connection is easily covered with dust and it is not easy to find the connection for replacing the tooth tip as proposed in the background art.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions:

[0006] A bucket tooth includes a tooth seat. One end of the tooth seat is provided with an installation opening, and the tooth seat is fixedly arranged at one end of the bucket through the installation opening. A tooth tip is sleeved on the outer periphery of the tooth seat. A connection cavity is opened in the tooth tip. One end of the tooth seat extends into the connection cavity. The tooth seat and the tooth tip are detachably connected. A dust-proof cover is sleeved on the outer periphery of the tooth seat. The dust-proof cover partially covers the outer periphery of the tooth tip to block the connection between the tooth seat and the tooth tip.

[0007] Working Principle:

[0008] When the tooth tip needs to be replaced, the tooth seat is removed from the bucket, the dust-proof cover is removed, the connection between the tooth seat and the tooth tip is found, and the tooth seat and the tooth tip are disassembled.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The connection between the tooth tip and the tooth seat is blocked by the dust-proof cover, which helps workers find the connection between the tooth tip and the tooth seat faster;

[0011] 2. The dust-proof cover plays a stabilizing role in the connection, strengthening the stability between the tooth tip and the tooth seat. Description of the Drawings

[0012] Figure 1 It is a schematic cross-sectional structure diagram of an embodiment of the present invention;

[0013] Figure 2 Schematic diagram of the tooth tip structure according to an embodiment of the present invention.

[0014] In the above-mentioned drawings: 10, tooth tip; 11, connection cavity; 12, limit block; 13, placement groove; 14, embedding cavity; 15, third limiting hole; 16, first limiting hole; 17, dust cover; 18, mounting opening; 19, limiting rod; 20, fourth limiting hole; 21, threaded hole; 22, screw rod; 23, limiting groove; 24, tooth base; 25, second limiting hole. Detailed implementation manners

[0015] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0016] Embodiment:

[0017] As Figure 1 shown, a bucket tooth includes a tooth base 24. One end of the tooth base 24 is provided with a mounting opening 18. The tooth base 24 is fixedly arranged at one end of the bucket through the mounting opening 18. A tooth tip 10 is sleeved on the outer periphery of the tooth base 24. A connection cavity 11 is opened in the tooth tip 10. One end of the tooth base 24 extends into the connection cavity 11. The tooth base 24 and the tooth tip 10 are detachably connected. A dust cover 17 is sleeved on the outer periphery of the tooth base 24. The dust cover 17 partially covers the outer periphery of the tooth tip 10. One end of the dust cover 17 abuts against the tooth tip 10, and the other end of the dust cover 17 abuts against the bucket. By adopting this method, the dust cover 17 is fixed, and the connection part between the tooth base 24 and the tooth tip 10 is shielded. The connection part between the tooth tip 10 and the tooth base 24 is shielded by the dust cover 17 to prevent dust from accumulating at the connection part, and the connection part is shielded to help the worker find the connection part between the tooth tip 10 and the tooth base 24 more quickly.

[0018] When the tooth tip 10 needs to be replaced, the tooth base 24 is removed from the bucket, the dust cover 17 is removed, the connection part between the tooth base 24 and the tooth tip 10 is found, and the tooth base 24 and the tooth tip 10 are disassembled.

[0019] As Figure 2 shown, the tooth base 24 is provided with a first limiting hole 16 in a penetrating manner, and both inner walls on both sides of the connection cavity 11 are provided with second limiting holes 25 in a penetrating manner. After the tooth base 24 extends into the tooth tip 10, the first limiting hole 16 communicates with the two second limiting holes 25. A limiting rod 19 is frictionally penetrated in the first limiting hole 16 and the two second limiting holes 25. The limiting rod 18 has a large frictional force with the inner walls of the first limiting hole 16 and the second limiting hole 25, and is thus used to fix the tooth tip 10 and the tooth base 2. The limiting rod 19 is arranged in the dust cover 17, and the dust cover 17 plays a role in fixing the limiting rod 19, further strengthening the stability between the tooth tip 10 and the tooth base 24.

[0020] Both ends of the tooth base 24 are fixedly provided with limit blocks 12, and limit grooves 23 are formed in the connection cavity 11. When the tooth base 24 extends into the connection cavity 11, the limit blocks 12 are slidably arranged in the limit grooves 23.

[0021] A placement groove 13 is formed on the outer periphery of the tooth tip 10, and a part of the dust-proof cover 17 is slidably arranged in the placement groove 13. The end of the placement groove 13 is an inclined surface, and the end of the dust-proof cover 17 is an inclined surface adapted to the inclined surface of the placement groove 13.

[0022] Two opposite embedding cavities 14 are formed in the placement groove 13. Threaded holes 21 are formed in communication with the connection cavity 11 in the embedding cavities 14. Third limiting holes 15 are formed in the limit blocks 12, and fourth limiting holes 20 are formed in the tooth base 24. The third limiting holes 15, the fourth limiting holes 20 are in communication with the threaded holes 21. Two screw rods 22 with nuts are threadedly connected to the corresponding threaded holes 21. The nuts are embedded in the embedding cavities 14 and extend into the corresponding third limiting holes 15 and fourth limiting holes 20. The two screw rods 22 are arranged in the dust-proof cover 17.

[0023] The screw rod 22 and the limiting rod 19 are used in cooperation to fix the tooth tip 10 and the tooth base 24, further enhancing the stability between the tooth tip 10 and the tooth base 24.

[0024] In this embodiment, the tooth tip is composed of the following percentage contents: C 0.28%, Si 1.30%, Mn 0.90%, Cr 9.00%, Mo 0.44%, Ni 3.77%, Al 0.03%, Cu 14%, and the balance is Fe.

[0025] The tooth tip processing technology includes the following steps:

[0026] S1. Making a wax mold;

[0027] S2. Assembling and welding the wax mold;

[0028] S3. Automatically lining the shell;

[0029] S4. Losing the wax;

[0030] S5. Baking the shell mold;

[0031] S6. Pouring;

[0032] S7. Cleaning the impurities on the surface of the tooth tip;

[0033] S8. Shot peening;

[0034] S9. High-temperature annealing;

[0035] S10. Automatically quenching and tempering;

[0036] S11. Painting the surface of the tooth tip;

[0037] S12. Package the dried tooth tips.

[0038] Through the above process, the processing and packaging of the tooth tips are completed.

[0039] Working principle:

[0040] When it is necessary to disassemble and replace the tooth tip 10, remove the tooth seat 24 from the bucket, remove the dust cover 17 from the tooth seat 24, loosen the screw 22, take out the two screws 22, then take out the limiting rod 19 from the first limiting hole 16 and the second limiting hole 25, take out the tooth tip 10 from the tooth seat 24, replace it with a new tooth tip 10, pass the limiting rod 19 through the first limiting hole 16 and the second limiting hole 25, screw in the two screws 22, put the dust cover 17 on the tooth seat 24, and fix the tooth seat 24 at one end of the bucket.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A bucket tooth, characterized in that, Including: A tooth base (24), one end of the tooth base (24) is provided with an installation opening (18), the tooth base (24) is fixedly arranged at one end of the bucket through the installation opening (18), a tooth tip (10) is sleeved on the outer periphery of the tooth base (24), a connection cavity (11) is arranged inside the tooth tip (10), one end of the tooth base (24) extends into the connection cavity (11), the tooth base (24) and the tooth tip (10) are detachably connected, a dust-proof cover (17) is sleeved on the outer periphery of the tooth base (24), and a part of the dust-proof cover (17) covers the outer periphery of the tooth tip (10) to shield the connection part between the tooth base (24) and the tooth tip (10).

2. The bucket tooth according to claim 1, characterized in that: The tooth base (24) is provided with a first limiting hole (16) in a penetrating manner, and both inner walls on two sides of the connection cavity (11) are provided with second limiting holes (25) in a penetrating manner. After the tooth base (24) extends into the tooth tip (10), the first limiting hole (16) is communicated with the two second limiting holes (25), and a limiting rod (19) is frictionally arranged in the first limiting hole (16) and the two second limiting holes (25).

3. A bucket tooth according to claim 1, characterized in that: Limit blocks (12) are fixedly arranged at both ends of the tooth base (24), and a limiting groove (23) is arranged inside the connection cavity (11). When the tooth base (24) extends into the connection cavity (11), the limit blocks (12) are slidably arranged in the limiting groove (23).

4. The bucket tooth according to claim 1, characterized in that: A placement groove (13) is arranged on the outer periphery of the tooth tip (10), and a part of the dust-proof cover (17) is slidably arranged in the placement groove (13).

5. A tooth according to claim 4, characterized in that: The end of the placement groove (13) is an inclined surface.

6. The cutting tooth according to claim 4, characterized in that: Two opposite embedding cavities (14) are arranged inside the placement groove (13), a threaded hole (21) is communicated between the embedding cavity (14) and the connection cavity (11), third limiting holes (15) are arranged in the limit blocks (12), a fourth limiting hole (20) is arranged in the tooth base (24), and the third limiting hole (l5), the fourth limiting hole (20) and the threaded hole (21) are communicated.

7. The cutting tooth according to claim 6, characterized in that: Two screw rods (22) with nuts are threadedly connected to the corresponding threaded holes (21) and extend into the corresponding third limiting holes (15) and fourth limiting holes (20).

8. A tooth according to claim 1, characterized in that: The tooth tip is composed of the following substances in percentage by content: C 0.27 - 0.30%, Si 1.20 - 1.50%, Mn 0.80 - 1.00%, Cr 8.70 - 9.90%, Mo 0.40 - 0.45%, Ni 3.75 - 3.80%, Al 0.02 - 0.05%, Cu 13.75 - 15%, and the balance is Fe.

9. A bucket tooth according to claim 8, characterized in that: The tooth tip is composed of the following substances in percentage by content: C 0.28%, Si 1.30%, Mn 0.90%, Cr 9.00%, Mo 0.44%, Ni 3.77%, Al 0.03%, Cu 13.76%, and the balance is Fe.

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