Novel bucket tooth connecting structure

Abstract

The utility model relates to a novel bucket tooth connecting structure which comprises a tooth holder and a tooth tip which are detachably fixed to each other, and a protruding block is formed upwards on the top of the tooth holder. A separation groove is formed in the middle of the end of the protruding block and divides the protruding block into two side blocks which are arranged in a bilateral symmetry mode. The tooth tip comprises two tooth tip petals which are arranged in a bilateral symmetry mode, the bottoms of the two tooth tip petals are each provided with a concave cavity matched with the corresponding side block, and the two side blocks are inserted into the concave cavities in the two tooth tip petals correspondingly; compared with the prior art, the tooth tip which is originally of an integrated structure is divided into the two detachable tooth tip petals which are spliced with each other, if one tooth tip petal is damaged, only the damaged tooth tip petal needs to be replaced, and the other tooth tip petal can be continuously used to be prevented from being replaced together, so that the problem of material waste is effectively relieved, and the service life of the tooth tip is prolonged. Therefore, the use cost is reduced to a certain extent.

Description

Technical Field

[0001] The utility model relates to a novel bucket tooth connection structure. Background Art

[0002] The bucket on the excavator is a key component used to load and turn over materials. A row of bucket teeth similar to human teeth are installed on the blade at the bottom edge of the bucket opening. The function of the bucket teeth is to improve the cutting and turning capabilities of the bucket.

[0003] Bucket teeth are composed of tooth seats and tooth tips. The tooth tips on bucket teeth are wearing parts because they are in direct and long-term contact with hard materials during the operation of the excavator bucket. The damaged tooth tips can be continued to be used by simply replacing them with new ones. In order to facilitate replacement, the tooth seats and tooth tips are detachably fixed together by pins.

[0004] The damaged part of the tooth tip that is replaced due to damage is often only a small part of the tooth tip, and most of the tooth tip can continue to be used. However, since the existing tooth tips are all one-piece structures, even if the damaged part is only a small part of the tooth tip, it can only be replaced as a whole; therefore, the above method of replacing the tooth tip as a whole has the problem of wasting materials, resulting in high cost of use, and needs further improvement. Utility Model Content

[0005] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a new bucket tooth connection structure which effectively alleviates the problem of material waste and thus reduces the use cost to a certain extent.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a new bucket tooth connection structure, including a tooth seat and a tooth tip that are detachably fixed to each other, and a protrusion is formed upward on the top of the tooth seat, characterized in that:

[0007] A separation groove is provided in the middle of the end of the protrusion, and the separation groove divides the protrusion into two side blocks which are symmetrically arranged on the left and right;

[0008] The tooth tip comprises two tooth tip lobes which are symmetrically arranged on the left and right. The bottom of the two tooth tip lobes is provided with a concave cavity which cooperates with the side block. The two side blocks are respectively inserted into the concave cavities on the two tooth tip lobes.

[0009] The sum of the wall thickness a on one side of the two concave cavities facing the separation groove and the left and right widths of the separation groove cooperate with each other so that the outer walls of the opposite sides of the two tooth cusps fit each other;

[0010] A limiting groove is provided on the outer wall of one of the tooth tip petals facing the dividing groove, and correspondingly, a limiting strip cooperating with the limiting groove is formed outwardly on the outer wall of the other tooth tip petal facing the dividing groove, and the limiting strip is detachably embedded in the limiting groove.

[0011] Preferably, a pointed stopper is formed outwardly on the outer wall of one side of the end of one of the tooth cusp petals facing the dividing groove, and correspondingly, the end of the other tooth cusp petal is cut off to form a cutting surface that cooperates with the outer wall at the bottom of the pointed stopper.

[0012] Preferably, the bottom height of the pointed top stopper matches the height of the cutting surface so that the cutting surface fits on the bottom outer wall of the pointed top stopper.

[0013] Preferably, a quadrangular pyramid-shaped cavity is formed on the bottom outer wall of the pointed top stopper, and correspondingly, a quadrangular pyramid-shaped protrusion is formed upward on the cutting surface and cooperates with the quadrangular pyramid-shaped cavity. The quadrangular pyramid-shaped protrusion is embedded in the quadrangular pyramid-shaped cavity to prevent relative sliding between the cutting surface and the bottom outer wall of the pointed top stopper.

[0014] Preferably, a first pin hole passing through the separation groove is further provided between the left and right outer walls of the protrusion, and correspondingly, a second pin hole cooperating with the first pin hole is provided between the left and right outer walls of each cusp flap.

[0015] Preferably, the first pin hole and the second pin holes on the two tooth cusp petals are also interspersed with transversely distributed and detachable pins to fix both tooth cusp petals on the tooth seat.

[0016] Preferably, the transverse cross-sectional shapes of the limiting groove and the limiting strip are both isosceles trapezoidal.

[0017] Compared with the prior art, the advantages of the present invention are: the present invention divides the tooth tip that originally adopts an integrated structure into two tooth tip petals that are assembled and detachable. If one of the tooth tip petals is damaged, only the damaged tooth tip petal needs to be replaced, and the other tooth tip petal can continue to be used to avoid being replaced together, thereby effectively alleviating the problem of material waste and reducing the cost of use to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of the exploded structure of the right front side of Example 1 of the utility model;

[0019] Figure 2 This is a structural diagram of the supine side of the cusp valve of Example 1 of the utility model;

[0020] Figure 3 This is a top view of the exploded structure of the right front side of Example 2 of the utility model;

[0021] Figure 4 This is a structural diagram of the upward side of the pointed top stopper on the tooth cusp valve of Example 2 of the utility model. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] Embodiment 1:

[0025] like Figures 1-2 As shown, a novel bucket tooth connection structure comprises a tooth seat 1 and a tooth tip 2 which are detachably fixed to each other, and a protrusion 11 is formed upward on the top of the tooth seat 1;

[0026] A separation groove 13 is provided in the middle of the end of the protrusion 11, and the separation groove 13 divides the protrusion 11 into two side blocks 14 which are symmetrically arranged on the left and right.

[0027] The tooth tip 2 includes two tooth tip petals 21 symmetrically arranged on the left and right. The bottom of the two tooth tip petals 21 is provided with a concave cavity 214 that cooperates with the side block 14. The two side blocks 14 are respectively inserted into the concave cavities 214 on the two tooth tip petals 21.

[0028] The sum of the wall thickness a on one side of the two concave cavities 214 facing the separation groove 13 and the left and right widths of the separation groove 13 cooperate with each other so that the outer walls of the opposite sides of the two tooth cusps 21 fit each other;

[0029] A limiting groove 211 is provided on the outer wall of one side of the tooth tip flap 21 facing the dividing groove 13. Correspondingly, a limiting strip 212 is formed outwardly on the outer wall of the other tooth tip flap 21 facing the dividing groove 13 and cooperates with the limiting groove 211. The limiting strip 212 is detachably embedded in the limiting groove 211.

[0030] The transverse cross-sectional shapes of the limiting groove 211 and the limiting strip 212 are both isosceles trapezoidal.

[0031] A first pin hole 12 passing through the separation groove 13 is further defined between the left and right outer walls of the protrusion 11 . Correspondingly, a second pin hole 213 cooperating with the first pin hole 12 is defined between the left and right outer walls of each tooth tip petal 21 .

[0032] The first pin hole 12 and the second pin holes 213 on the two tooth cusp petals 21 are also interspersed with transversely distributed and detachable pins 3 to fix the two tooth cusp petals 21 on the gear seat 1 .

[0033] Embodiment 2:

[0034] like Figures 3-4 As shown, a pointed stopper 215 is formed outwardly on the outer wall of one side of the end of one of the tooth tip lobes 21 facing the dividing groove 13. Correspondingly, the end of the other tooth tip lobes 21 is cut off to form a cutting surface 216 that cooperates with the bottom outer wall of the pointed stopper 215.

[0035] The bottom height of the pointed top stopper 215 and the height of the cutting surface 216 match each other so that the cutting surface 216 fits on the bottom outer wall of the pointed top stopper 215 .

[0036] A quadrangular pyramid-shaped cavity 217 is formed on the bottom outer wall of the pointed top stopper 215. Correspondingly, a quadrangular pyramid-shaped protrusion 218 is formed upward on the cutting surface 216 and cooperates with the quadrangular pyramid-shaped cavity 217. The quadrangular pyramid-shaped protrusion 218 is embedded in the quadrangular pyramid-shaped cavity 217 to prevent relative sliding between the cutting surface 216 and the bottom outer wall of the pointed top stopper 215.

[0037] Installation method of embodiment 1:

[0038] The tooth seat 1 is fixed to the blade on the edge of the bucket of the excavator by screwing, welding or riveting, and then the two matching tooth tip petals 21 are symmetrically spliced ​​together; when splicing, the two tooth tip petals 21 are respectively distributed up and down, and then the limiting strip 212 on one of the tooth tip petals 21 is inserted upward or downward into the limiting groove 211 on the other tooth tip petal 21; then the concave cavities 214 on the two spliced ​​tooth tip petals 21 are respectively aligned with the two side blocks 14 on the tooth seat 1 and the two tooth tip petals 21 are moved toward the direction of the tooth seat 1 until the two side blocks 14 are respectively inserted into the concave cavities 214 on the two tooth tip petals 21, and finally the pin 3 is transversely inserted into the first pin hole 12 and the second pin hole 213 on the two tooth tip petals 21 to fix the two tooth tip petals 21 on the tooth seat 1; then it can be used normally.

[0039] Installation method of embodiment 2:

[0040] The tooth seat 1 is fixed to the blade on the edge of the bucket of the excavator by screwing, welding or riveting, and then the two matching tooth tip petals 21 are symmetrically assembled; when assembling, the two tooth tip petals 21 are respectively distributed up and down, but the tooth tip petal 21 with the pointed top stopper 215 must be located at the top, and then the limiting strip 212 on the other tooth tip petal 21 is inserted upward into the limiting groove 211 on the tooth tip petal 21 with the pointed top stopper 215 until the cutting surface 216 is attached to the bottom outer wall of the pointed top stopper 215; at this time, the four-sided pyramidal protrusion 218 on the cutting surface 216 is embedded in the four-sided pyramidal sink cavity 217, It not only plays a positioning role, but also prevents relative sliding between the cutting surface 216 and the bottom outer wall of the pointed top stopper 215, thereby preventing relative sliding between the two tooth cusp flaps 21; then the concave cavities 214 on the two spliced ​​tooth cusp flaps 21 are respectively aligned with the two side blocks 14 on the tooth seat 1 and the two tooth cusp flaps 21 are moved toward the direction of the tooth seat 1 until the two side blocks 14 are respectively inserted into the concave cavities 214 on the two tooth cusp flaps 21, and finally the pin 3 is laterally inserted into the first pin hole 12 and the second pin hole 213 on the two tooth cusp flaps 21 to fix the two tooth cusp flaps 21 on the tooth seat 1; then it can be used normally.

[0041] Replacement method:

[0042] When any cusp flap 21 is severely worn during use, the cusp flap 21 can be replaced separately. When replacing, first remove the pin 3 to remove the two cusp flaps 21 from the tooth seat 1, and then separate the two cusp flaps 21 in the same way, and then take out a new cusp flap 21 to replace the severely worn cusp flap 21, and then reassemble the two cusp flaps 21 in the same way, and finally fix the two cusp flaps 21 on the tooth seat 1 in the same way. In this way, the other undamaged cusp flap 21 can continue to be used, thereby saving the cost of use.

[0043] The utility model divides the tooth tip 2 that originally adopts an integrated structure into two mutually assembled and detachable tooth tip petals 21. If one of the tooth tip petals 21 is damaged, only the damaged tooth tip petal 21 needs to be replaced, and the other tooth tip petal 21 can continue to be used to avoid being replaced together, thereby effectively alleviating the problem of material waste and reducing the use cost to a certain extent.

[0044] 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 novel bucket tooth connection structure, comprising a tooth seat and a tooth tip that are detachably fixed to each other, a protrusion is formed upward on the top of the tooth seat, and is characterized in that: A separation groove is provided in the middle of the end of the protrusion, and the separation groove divides the protrusion into two side blocks which are symmetrically arranged on the left and right; The tooth tip comprises two tooth tip lobes which are symmetrically arranged on the left and right. The bottom of the two tooth tip lobes is provided with a concave cavity which cooperates with the side block. The two side blocks are respectively inserted into the concave cavities on the two tooth tip lobes. The sum of the wall thickness a on one side of the two concave cavities facing the separation groove and the left and right widths of the separation groove cooperate with each other so that the outer walls of the opposite sides of the two tooth cusps fit each other; A limiting groove is provided on the outer wall of one of the tooth tip petals facing the dividing groove, and correspondingly, a limiting strip cooperating with the limiting groove is formed outwardly on the outer wall of the other tooth tip petal facing the dividing groove, and the limiting strip is detachably embedded in the limiting groove.

2. A novel bucket tooth connection structure according to claim 1, characterized in that: A pointed stopper is formed outwardly on the outer wall of one side of the end of one of the tooth cusp petals facing the dividing groove, and correspondingly, the end of the other tooth cusp petal is cut off to form a cutting surface that cooperates with the outer wall at the bottom of the pointed stopper.

3. A novel bucket tooth connection structure according to claim 2, characterized in that: The bottom height of the pointed top stopper matches the height of the cutting surface so that the cutting surface fits on the bottom outer wall of the pointed top stopper.

4. A novel bucket tooth connection structure according to claim 3, characterized in that: A quadrangular pyramid-shaped cavity is formed on the bottom outer wall of the pointed top stopper, and correspondingly, a quadrangular pyramid-shaped protrusion is formed upward on the cutting surface to cooperate with the quadrangular pyramid-shaped cavity. The quadrangular pyramid-shaped protrusion is embedded in the quadrangular pyramid-shaped cavity to prevent relative sliding between the cutting surface and the bottom outer wall of the pointed top stopper.

5. The novel bucket tooth connection structure according to claim 1 is characterized in that: A first pin hole passing through the separation groove is further provided between the left and right outer walls of the protrusion. Correspondingly, a second pin hole cooperating with the first pin hole is provided between the left and right outer walls of each cusp flap.

6. A novel bucket tooth connection structure according to claim 5, characterized in that: The first pin hole and the second pin holes on the two tooth cusp petals are also interspersed with transversely distributed and detachable pins to fix the two tooth cusp petals on the tooth seat.

7. The novel bucket tooth connection structure according to claim 1 is characterized in that: The transverse cross-sectional shapes of the limiting groove and the limiting strip are both isosceles trapezoidal.

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