Novel excavator bucket tooth

Abstract

The utility model relates to a novel excavator bucket tooth which comprises a tooth holder, a tooth tip and a bolt, the bottom of the tooth tip is sleeved on the top of the tooth holder, and the bolt is detachably inserted between the tooth holder and the tooth tip to fix the tooth holder and the tooth tip. The tooth tip comprises a base, a pinnacle arranged above the base, and a plurality of interlayer blocks vertically stacked between the base and the pinnacle in a pagoda shape; a trapezoidal concave cavity is formed in the bottom of the base, correspondingly, a triangular-prism-shaped convex block matched with the trapezoidal concave cavity is upwards formed on the top of the tooth holder, and the triangular-prism-shaped convex block is embedded into the trapezoidal concave cavity; according to the utility model, any part on the tooth tip can be specifically replaced, so that the problem that materials are wasted when the whole tooth tip is replaced is effectively solved, and the use cost is further reduced.

Description

Technical Field

[0001] The utility model relates to a novel bucket tooth for an excavator. Background Art

[0002] The edge of the bucket on the excavator is equipped with a row of parts similar to human teeth. This is the bucket tooth. The bucket tooth consists of a tooth seat and a tooth tip. Since the tooth tip on the bucket tooth is in direct and long-term contact with hard materials during the operation of the excavator, the tooth tip is easily worn and needs to be replaced after wear. In order to facilitate replacement, the current tooth seat and tooth tip are detachably connected to each other through a pin shaft.

[0003] After observing the tooth tips that were replaced due to wear, it was found that the wear and failure parts of the tooth tips were basically concentrated at the tip of the tooth tips, and other parts of the tooth tips were not worn to the point where they could not be used and did not reach the level of replacement, but could only be replaced along with the wear and failure of the tip. Therefore, the method of replacing the tooth tips as a whole still has the problem of material waste, and the cost of use is generally still high, and needs further improvement. Utility Model Content

[0004] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a new excavator bucket tooth which can carry out targeted replacement of any part on the tooth tip to effectively solve the problem of material waste when the tooth tip is replaced as a whole, thereby further reducing the cost of use.

[0005] The utility model solves the above technical problems by adopting the following technical solution: a new type of excavator bucket tooth, comprising a tooth seat, a tooth tip and a latch, wherein the bottom of the tooth tip is sleeved on the top of the tooth seat, and the latch is detachably inserted between the tooth seat and the tooth tip to fix the tooth seat and the tooth tip to each other, and is characterized in that:

[0006] The tooth tip comprises a base, a spire disposed above the base, and a plurality of interlayer blocks vertically stacked in a pagoda shape between the base and the spire;

[0007] A trapezoidal cavity is formed at the bottom of the base, and correspondingly, a triangular prism block that cooperates with the trapezoidal cavity is formed on the top of the gear seat, and the triangular prism block is embedded in the trapezoidal cavity;

[0008] A first pin hole is provided between the left and right outer walls of the triangular prism, and correspondingly, a second pin hole is provided between the left and right outer walls of the trapezoidal cavity, which passes through the trapezoidal cavity and cooperates with the first pin hole, and the latch is detachably inserted into the first pin hole and the second pin hole to detachably fix the base to the top of the gear seat;

[0009] The outer contour of the bottom of the spire and the outer contour of the top of the base are both rectangular, and each of the interlayer blocks is a quadrangular pyramid structure;

[0010] The edges of the bottom of the pointed top are respectively in contact with the edges of the top of the uppermost interlayer block, and the edges of the top of the base are respectively in contact with the edges of the bottom of the lowermost interlayer block;

[0011] The edges around the bottom of any one of the interlayer blocks are respectively attached to the edges around the top of an interlayer block located below it;

[0012] The bottom of the pointed top is also formed with a vertically arranged quadrangular connecting column downwards, and correspondingly, the end of the triangular prism is provided with a positioning groove, and the bottom surface of the positioning groove is located below the first pin hole;

[0013] The end of the quadrangular connecting column passes through each interlayer block downward in turn and extends into the trapezoidal cavity on the base and is inserted into the positioning groove on the gear seat. A third pin hole that cooperates with the first pin hole and the second pin hole is opened between the outer walls on the left and right sides of the end of the quadrangular connecting column;

[0014] The pin passes through the third pin hole to detachably fix the spire above the base and press the spire, each interlayer block and the base against each other in sequence.

[0015] Preferably, an inverted first square pyramid countersunk hole is provided between the top of the base and the bottom surface of the trapezoidal cavity.

[0016] Preferably, an inverted second square pyramid countersunk hole is formed on the top of each interlayer block, and an inverted square pyramid block is formed downward at the bottom of each interlayer block.

[0017] Preferably, the square pyramid block on any interlayer block is embedded in a second square pyramid countersunk hole on an interlayer block located below it, and the outer walls of the square pyramid block are respectively attached to the inner walls of the second square pyramid countersunk hole to prevent lateral relative movement between any two adjacent interlayer blocks.

[0018] Preferably, an inverted square cone ring is formed between the root outer wall of the four-sided connecting column and the bottom outer wall of the pointed top, and the square cone ring is embedded in the second square cone countersunk hole on the top interlayer block, and the surrounding outer walls of the square cone ring are respectively attached to the surrounding inner walls of the second square cone countersunk hole on the top interlayer block.

[0019] Preferably, the square pyramid block on the lowest interlayer block is embedded in the first square pyramid countersunk hole on the base, and the outer walls of the square pyramid block on the lowest interlayer block are respectively fitted on the inner walls of the first square pyramid countersunk hole.

[0020] Preferably, a rectangular through hole is provided between the bottom surface of the second square pyramid countersunk hole on each interlayer block and the end of the first square pyramid block, the four-sided connecting column is inserted into the rectangular through hole on each interlayer block, and the four outer walls of the four-sided connecting column are respectively attached to the four inner walls of each rectangular through hole.

[0021] Compared with the prior art, the advantages of the present invention are: the present invention separates the tip portion of the original integral tooth tip that is prone to wear and failure to form a pointed top, and separates the bottom portion of the original integral tooth tip used to connect the tooth seat to form a base, and finally divides the other portions into a plurality of interlayer blocks arranged between the base and the pointed top, and the pointed top, the base and the plurality of interlayer blocks can be assembled together when the base is connected to the tooth seat, and can also be disassembled together when the base is separated from the tooth seat. Therefore, when the pointed top cannot be used due to wear and failure, the pointed top can be replaced alone, and the other portions of the tooth tip can continue to be used after reassembly, without the need to be replaced together, and the operation is simple and convenient; when the base or individual interlayer blocks are accidentally damaged and cannot be used, they can also be replaced separately in the same way, so that any portion of the tooth tip can be replaced in a targeted manner, thereby effectively solving the problem of material waste when the tooth tip is replaced as a whole, thereby further reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a top view of the exploded structure of the utility model from the right front side;

[0023] Figure 2 This is a bottom-up exploded structural diagram of the right front side of the utility model;

[0024] Figure 3 It is a side view sectional exploded structure diagram of the utility model. DETAILED DESCRIPTION

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0027] like Figures 1 to 3 As shown, a new type of excavator bucket tooth includes a tooth seat 1, a tooth tip 2 and a latch 3. The bottom of the tooth tip 2 is sleeved on the top of the tooth seat 1. The latch 3 is detachably inserted between the tooth seat 1 and the tooth tip 2 to fix the tooth seat 1 and the tooth tip 2 to each other.

[0028] The tooth tip 2 includes a base 21, a spire 23 disposed above the base 21, and a plurality of interlayer blocks 22 vertically stacked in a pagoda shape between the base 21 and the spire 23;

[0029] A trapezoidal cavity 211 is formed at the bottom of the base 21. Correspondingly, a triangular prism 11 is formed on the top of the gear holder 1 to cooperate with the trapezoidal cavity 211. The triangular prism 11 is embedded in the trapezoidal cavity 211.

[0030] A first pin hole 12 is provided between the left and right outer walls of the triangular prism 11. Correspondingly, a second pin hole 212 is provided between the left and right outer walls of the trapezoidal cavity 211, which passes through the trapezoidal cavity 211 and cooperates with the first pin hole 12. The latch 3 is detachably inserted into the first pin hole 12 and the second pin hole 212 to detachably fix the base 21 on the top of the gear holder 1.

[0031] The bottom outer contour of the spire 23 and the top outer contour of the base 21 are both rectangular, and each interlayer block 22 is a quadrangular pyramid structure;

[0032] The edges around the bottom of the pointed top 23 are respectively in contact with the edges around the top of the uppermost interlayer block 22, and the edges around the top of the base 21 are respectively in contact with the edges around the bottom of the lowermost interlayer block 22;

[0033] The edges around the bottom of any interlayer block 22 are respectively attached to the edges around the top of an interlayer block 22 located below it;

[0034] A quadrangular connecting column 231 is vertically formed downwardly at the bottom of the pointed top 23. Correspondingly, a positioning groove 13 is formed at the end of the triangular prism 11. The bottom surface of the positioning groove 13 is located below the first pin hole 12.

[0035] The end of the quadrangular connecting column 231 passes through each interlayer block 22 downward in sequence and extends into the trapezoidal cavity 211 on the base 21 and is inserted into the positioning groove 13 on the gear holder 1. A third pin hole 232 that cooperates with the first pin hole 12 and the second pin hole 212 is opened between the outer walls on the left and right sides of the end of the quadrangular connecting column 231;

[0036] The pin 3 passes through the third pin hole 232 to detachably fix the tip 23 above the base 21 and press the tip 23, each interlayer block 22 and the base 21 against each other in sequence.

[0037] An inverted first square pyramid countersunk hole 213 is defined between the top of the base 21 and the bottom surface of the trapezoidal cavity 211 .

[0038] An inverted second square pyramid countersunk hole 221 is formed on the top of each interlayer block 22 , and an inverted square pyramid block 222 is formed downward on the bottom of each interlayer block 22 .

[0039] The square pyramid block 222 on any interlayer block 22 is embedded in the second square pyramid countersunk hole 221 on an interlayer block 22 located below it, and the outer walls of the square pyramid block 222 are respectively attached to the inner walls of the second square pyramid countersunk hole 221, thereby preventing lateral relative movement between any two adjacent interlayer blocks 22.

[0040] An inverted square pyramid ring 233 is also formed between the root outer wall of the four-sided connecting column 231 and the bottom outer wall of the pointed top 23. The square pyramid ring 233 is embedded in the second square pyramid countersunk hole 221 on the top interlayer block 22, and the surrounding outer walls of the square pyramid ring 233 are respectively attached to the surrounding inner walls of the second square pyramid countersunk hole 221 on the top interlayer block 22.

[0041] The square pyramid block 222 on the bottom interlayer block 22 is embedded in the first square pyramid countersunk hole 213 on the base 21 , and the outer walls of the square pyramid block 222 on the bottom interlayer block 22 are respectively attached to the inner walls of the first square pyramid countersunk hole 213 .

[0042] A rectangular through hole 223 is provided between the bottom surface of the second square pyramid countersunk hole 221 on each interlayer block 22 and the end of the first square pyramid block 222. A quadrangular connecting column 231 is inserted into the rectangular through hole 223 on each interlayer block 22. The outer walls of the quadrangular connecting column 231 are respectively attached to the inner walls of each rectangular through hole 223.

[0043] Installation method:

[0044] The tooth seat 1 is fixed to the blade at the edge of the bucket on the excavator by screwing, welding or riveting, and then the trapezoidal cavity 211 on the base 21 is sleeved on the outside of the triangular prism 11 on the tooth seat 1 according to the direction, and then a plurality of interlayer blocks 22 are stacked on the base 21 in sequence and distributed in a pagoda shape; when stacking, the square cone block 222 on the bottom interlayer block 22 is embedded in the first square cone countersunk hole 213 on the base 21, and the square cone block 222 on any interlayer block 22 is embedded in the first square cone countersunk hole 213 on the base 21. The cone blocks 222 are all embedded in the second square pyramid countersunk hole 221 on an interlayer block 22 located below it; then, the peak 23 is placed on the top of the uppermost interlayer block 22, and then the end of the square connecting column 231 is passed downward through the rectangular through hole 223 in each interlayer block 22 in turn, until the end of the square connecting column 231 extends into the trapezoidal cavity 211 on the base 21 and is inserted into the positioning groove 13 on the gear seat 1; at this time, the square pyramid ring 233 on the peak 23 is embedded in the uppermost interlayer block 22. Finally, the pin 3 is inserted into the first pin hole 12, the second pin hole 212 and the third pin hole 232 horizontally to fix the tip 23, each interlayer block 22 and the base 21 on the gear holder 1. When the pin 3 passes through the third pin hole 232, the pin 3 will tighten the quadrangular connecting column 231 with the help of the third pin hole 232, and then press each interlayer block 22 layer by layer on the base 21 with the help of the tip 23 to prevent relative displacement. The outer walls of the four-sided pyramid block 222 on the bottom interlayer block 22 are respectively fitted on the inner walls of the first four-sided pyramid countersunk hole 213, the outer walls of the four-sided pyramid ring 233 are respectively fitted on the inner walls of the second four-sided pyramid countersunk hole 221 on the top interlayer block 22, and the outer walls of the four-sided pyramid block 222 on any interlayer block 22 are respectively fitted on the inner walls of the second four-sided pyramid countersunk hole 221 on an interlayer block 22 located below it; then it can be used normally.

[0045] Replacement method:

[0046] When the spire 23 is severely worn during use, the spire 23 can be replaced separately. During replacement, the pin 3 is first removed to loosen the spire 23, each interlayer block 22 and the base 21 from the gear seat 1, and then a new spire 23 is taken out to replace the severely worn spire 23, and finally the new spire 23 is reinstalled in the same way; in this way, each interlayer block 22 and the base 21 do not need to be replaced, thereby saving the cost of use.

[0047] Except between the spires 23, if some interlayer blocks 22 are severely worn, you can choose interlayer blocks 22 of the same size and replace them in the same way. If other interlayer blocks 22, spires 23 and bases 21 can still be used, they do not need to be replaced, which is flexible and convenient to use.

[0048] The utility model separates the tip portion of the original integral tooth tip 2 that is prone to wear and failure to form a pointed top 23, and separates the bottom portion of the original integral tooth tip 2 used for connecting the tooth seat 1 to form a base 21, and finally divides the other portions into a plurality of interlayer blocks 22 arranged between the base 21 and the pointed top 23, and the pointed top 23, the base 21 and the plurality of interlayer blocks 22 can be assembled together when the base 21 is connected to the tooth seat 1, and can also be disassembled together when the base 21 is separated from the tooth seat 1. Therefore, when the pointed top 23 cannot be used due to wear and failure, the pointed top 23 can be replaced alone, and the other portions of the tooth tip 2 can continue to be used after reassembly without having to be replaced together, and the operation is simple and convenient; when the base 21 or individual interlayer blocks 22 are accidentally damaged and cannot be used, they can also be replaced separately in the same way, so that any portion on the tooth tip 2 can be replaced in a targeted manner, thereby effectively solving the problem of material waste when the tooth tip 2 is replaced as a whole, thereby further reducing the cost of use.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A new type of excavator bucket tooth, comprising a tooth seat, a tooth tip and a latch, wherein the bottom of the tooth tip is sleeved on the top of the tooth seat, and the latch is detachably inserted between the tooth seat and the tooth tip to fix the tooth seat and the tooth tip to each other, characterized in that: The tooth tip comprises a base, a spire disposed above the base, and a plurality of interlayer blocks vertically stacked in a pagoda shape between the base and the spire; A trapezoidal cavity is formed at the bottom of the base, and correspondingly, a triangular prism block that cooperates with the trapezoidal cavity is formed on the top of the gear seat, and the triangular prism block is embedded in the trapezoidal cavity; A first pin hole is provided between the left and right outer walls of the triangular prism, and correspondingly, a second pin hole is provided between the left and right outer walls of the trapezoidal cavity, which passes through the trapezoidal cavity and cooperates with the first pin hole, and the latch is detachably inserted into the first pin hole and the second pin hole to detachably fix the base to the top of the gear seat; The outer contour of the bottom of the spire and the outer contour of the top of the base are both rectangular, and each of the interlayer blocks is a quadrangular pyramid structure; The edges of the bottom of the pointed top are respectively in contact with the edges of the top of the uppermost interlayer block, and the edges of the top of the base are respectively in contact with the edges of the bottom of the lowermost interlayer block; The edges around the bottom of any one of the interlayer blocks are respectively attached to the edges around the top of an interlayer block located below it; The bottom of the pointed top is also formed with a vertically arranged quadrangular connecting column downwards, and correspondingly, the end of the triangular prism is provided with a positioning groove, and the bottom surface of the positioning groove is located below the first pin hole; The end of the quadrangular connecting column passes through each interlayer block downward in turn and extends into the trapezoidal cavity on the base and is inserted into the positioning groove on the gear seat. A third pin hole that cooperates with the first pin hole and the second pin hole is opened between the outer walls on the left and right sides of the end of the quadrangular connecting column; The pin passes through the third pin hole to detachably fix the spire above the base and press the spire, each interlayer block and the base against each other in sequence.

2. A new type of excavator bucket tooth according to claim 1, characterized in that: An inverted first square pyramid countersunk hole is provided between the top of the base and the bottom surface of the trapezoidal cavity.

3. A new type of excavator bucket tooth according to claim 2, characterized in that: An inverted second square pyramid countersunk hole is formed on the top of each interlayer block, and an inverted square pyramid block is formed downward on the bottom of each interlayer block.

4. A new type of excavator bucket tooth according to claim 3, characterized in that: The square pyramid block on any interlayer block is embedded in a second square pyramid countersunk hole on an interlayer block below it, and the outer walls of the square pyramid block are respectively attached to the inner walls of the second square pyramid countersunk hole to prevent lateral relative movement between any two adjacent interlayer blocks.

5. The new excavator bucket tooth according to claim 3 is characterized in that: An inverted square cone ring is also formed between the root outer wall of the four-sided connecting column and the bottom outer wall of the pointed top. The square cone ring is embedded in the second square cone countersunk hole on the top interlayer block, and the surrounding outer walls of the square cone ring are respectively attached to the surrounding inner walls of the second square cone countersunk hole on the top interlayer block.

6. The new excavator bucket tooth according to claim 3 is characterized in that: The square pyramid block on the bottom interlayer block is embedded in the first square pyramid countersunk hole on the base, and the outer walls of the square pyramid block on the bottom interlayer block are respectively attached to the inner walls of the first square pyramid countersunk hole.

7. A new type of excavator bucket tooth according to claim 6, characterized in that: A rectangular through hole is provided between the bottom surface of the second square pyramid countersunk hole on each interlayer block and the end of the first square pyramid block, and the four-sided connecting column is inserted into the rectangular through hole on each interlayer block, and the four outer walls of the four-sided connecting column are respectively attached to the four inner walls of each rectangular through hole.

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