Bucket tooth self-cleaning device

Abstract

The utility model provides a bucket tooth self-cleaning device, and belongs to the technical field of excavators. The clamping end of the tooth holder is connected with the opening edge of the excavator bucket, the outer wall of the tooth holder protrudes out of the outer wall of the sleeving end, the boss is formed between the clamping end and the sleeving end of the tooth holder, meanwhile, one end of the tooth tip is provided with the sleeving hole and is arranged on the sleeving end of the tooth holder in a sleeving mode, and in addition, the tooth tip is arranged in the sleeving hole. The thickness of the cavity wall of the sleeve hole is set to be consistent with the protruding height of the boss, so that when the tooth tip is installed on the tooth holder, the outer surface of the tooth tip can be flush with the outer surface of the tooth holder, smooth transition of the outer surface of the joint of the tooth tip and the tooth holder is achieved, and the service life of the tooth tip is prolonged. The problem that after the tooth top and the tooth base are installed, steps appear between the tooth top and the tooth base, and therefore excavated objects are prone to being left is solved, the excavated objects can be taken away smoothly in the using process that the bucket tooth is pulled out of the excavated objects or the excavated objects are poured out of an excavator bucket, self-cleaning operation of the bucket tooth is achieved, frequent manual cleaning of the bucket tooth is not needed, the labor burden is relieved, and the working efficiency is improved. And the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to a bucket tooth self-cleaning device. Background Art

[0002] As an indispensable component when the excavator is working, the bucket tooth of the excavator can form a tooth-shaped structure on the bucket to meet the use requirements of rapid excavation. The existing bucket teeth include a tooth seat and a tooth tip. During installation, one end of the tooth seat is installed on the edge of the bucket, and the tooth tip is installed on the tooth seat, or the tooth seat and the tooth tip are an integrated structure, and one end of the integrated bucket tooth is directly installed on the edge of the bucket to realize the installation of the bucket tooth.

[0003] Since bucket teeth are wearing parts, the industry usually sets the tooth seat and tooth tip of bucket teeth as a split structure, and the tooth tip is sleeved on the outside of one end of the tooth seat and locked by a pin shaft. For example, the bucket tooth assembly disclosed in patent CN107059984A includes a tooth seat and a tooth sleeve. The rear end of the tooth sleeve is a cavity that is open front and back. The tooth seat is composed of a mounting portion at the rear and a plug connector located on the front end surface of the mounting portion for inserting into the rear end cavity. The plug connector is provided with left and right pin holes that pass through the plug connector horizontally, and left and right locking pins are provided in the pin holes. It can be seen that the tooth sleeve here is the above-mentioned tooth tip, which can realize the coordinated installation of the tooth tip and the tooth seat, and the tooth tip can be directly replaced after it is worn, without replacing the bucket tooth as a whole. This reduces the use cost and realizes the rapid replacement of the tooth tip, which is more convenient to operate. However, since the bucket teeth will be inserted into the excavated materials such as soil during use, and since one end of the tooth tip is directly mounted on the outside of the tooth seat, steps will be formed between the tooth tip and the tooth seat and between the tooth seat and the edge of the bucket, which will cause soil and other materials to remain on the formed steps, making the bucket teeth dirty. Especially when the excavated materials need to be replaced, in order to avoid the problem of mutual mixing of the excavated materials, the user needs to clean the bucket teeth frequently, which leads to a heavy labor burden and inconvenience in use. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide a bucket tooth self-cleaning device, so that a boss is formed on the outer wall of one end of the tooth seat for mounting the tooth tip, and the height of the boss is consistent with the thickness of the cavity wall of the tooth tip, so that after the tooth tip is sleeved on the tooth seat, the boss can abut against the end of the tooth tip, so that the outer surface of the boss can be flush with the outer surface of the tooth tip, thereby achieving a smooth transition of the outer surface of the connection between the tooth tip and the tooth seat, so that when the bucket tooth is pulled out of the excavated object or the excavated object is poured out of the bucket, the excavated object can be smoothly taken away, thereby realizing the self-cleaning operation of the bucket tooth, eliminating the need for manual cleaning of the bucket tooth, reducing the labor burden, and making it more convenient to use.

[0005] The specific technical solutions are as follows:

[0006] A bucket tooth self-cleaning device has the following characteristics, including:

[0007] The tooth seat comprises a clamping end and a sleeve end, the clamping end is provided with a longitudinally extending bayonet, the bayonet is clamped on the edge of the bucket, the sleeve end extends toward the side away from the bucket, a through positioning hole is provided on the sleeve end, and at the same time, the outer wall of the clamping end protrudes from the outer wall of the sleeve end and forms a boss at the connection between the two;

[0008] A tooth tip, one end of the tooth tip is a pointed end, a sleeve hole is provided at the other end of the tooth tip, a connecting hole is provided on the end of the tooth tip provided with the sleeve hole, and the connecting hole is connected to the sleeve hole, the sleeve hole is sleeved outside the sleeve connection end, and the connecting hole and the positioning hole are directly opposite, and at the same time, the cavity wall thickness of the sleeve hole is consistent with the protruding height of the boss;

[0009] The pin is inserted into the connecting hole and also inserted into the positioning hole.

[0010] In the above-mentioned bucket tooth self-cleaning device, the outer surface of one end of the clamping end away from the sleeve end is arranged in an inclined surface, and the inclined surface of the clamping end is inclined toward one side of the bucket, and the length of the clamping opening is greater than 1.5 times the length of the sleeve end.

[0011] The above-mentioned bucket tooth self-cleaning device also includes side filling blocks, which are arranged on both sides of each tooth seat. The side filling blocks are triangular structures, and one edge of the side filling block is attached to one side of the installed tooth seat and tooth tip. A socket corresponding to the bayonet is opened on one corner of the side filling block, and the socket is clamped on the edge of the bucket.

[0012] The above-mentioned bucket tooth self-cleaning device, wherein the corner of the side filling block away from the tooth seat and the tooth tip is a transition portion, and the upper and lower side surfaces of the transition portion are arranged in an inclined surface, and the upper and lower side surfaces of the transition portion are closed toward the middle plane of the side filling block to form edges, and the side filling block is provided with a corner of the socket and the edges of the upper and lower sides of the remaining corner are flush with the outer surfaces of the tooth seat and the tooth tip respectively.

[0013] The above-mentioned bucket tooth self-cleaning device, wherein the side filling block includes a main connecting block and a sleeve connecting block, one bucket tooth corresponds to both a main connecting block and a sleeve connecting block, a protruding shaft body is provided on the side of the main connecting block close to the tooth seat, and the shaft body is used as a pin shaft, and a socket is provided on the side of the sleeve connecting block close to the tooth seat, and the end of the shaft body away from the main connecting block passes through the connecting hole and extends to the outside of the connecting hole, and the end of the shaft body extending outside the connecting hole is inserted into the socket of the sleeve block.

[0014] The above-mentioned bucket tooth self-cleaning device, wherein a clamping hole connected to the plug hole is opened on the sleeve block, a through hole corresponding to the clamping hole is opened on one end of the shaft body inserted into the plug hole, and a positioning pin is inserted into the clamping hole and the through hole.

[0015] In the above-mentioned bucket tooth self-cleaning device, the clamping end of the tooth seat is welded to the bucket.

[0016] In the above-mentioned bucket tooth self-cleaning device, both ends of the clamping hole are countersunk structures, and both ends of the positioning pin are located in the clamping hole.

[0017] The positive effects of the above technical solution are:

[0018] The above-mentioned bucket tooth self-cleaning device effectively increases the structural strength of the tooth seat by arranging the outer wall of the clamping end of the tooth seat to protrude from the outer wall of the sleeve end to form a boss at the connection between the two. At the same time, the sleeve hole at one end of the tooth tip is sleeved on the sleeve end of the tooth seat, and the cavity wall thickness of the sleeve hole is consistent with the protruding height of the boss, so that when the tooth tip is installed on the tooth seat, the outer surface of the tooth tip can be flush with the outer surface of the tooth seat, achieving a smooth transition of the outer surface of the connection between the tooth tip and the tooth seat, avoiding the problem of steps formed between the tooth tip and the tooth seat after installation, which easily causes residual excavated matter, so that the bucket tooth can smoothly take away the excavated matter when it is pulled out of the excavated matter or poured out of the bucket, thereby achieving the self-cleaning operation of the bucket tooth, eliminating the need for manual frequent cleaning of the bucket teeth, lighter labor burden, and more convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of an embodiment of a bucket tooth self-cleaning device of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation of bucket teeth and tooth holders in a preferred embodiment of the utility model;

[0021] Figure 3 This is a structural diagram of a side filling block of a preferred embodiment of the utility model.

[0022] In the accompanying drawings: 1, tooth seat; 11, clamping end; 12, sleeve end; 111, bayonet; 112, boss; 121, positioning hole; 2, tooth tip; 21, connecting hole; 3, side filling block; 31, main connecting block; 32, sleeve block; 311, socket; 312, transition part; 313, shaft; 321, socket; 322, clamping hole; 3131, through hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments are combined with the attached Figure 1 To Attachment Figure 3 The technical solution provided by the utility model is described in detail, but the following content is not intended to limit the utility model.

[0024] Figure 1 This is a structural diagram of an embodiment of a bucket tooth self-cleaning device of the utility model; Figure 2This is a schematic diagram of the installation of the bucket teeth and tooth seat of a preferred embodiment of the utility model. Figure 1 and Figure 2 As shown, the bucket tooth self-cleaning device provided in this embodiment includes: a tooth seat 1, a tooth tip 2 and a pin shaft.

[0025] More specifically, the tooth holder 1 includes a clamping end 11 and a sleeve end 12, that is, the two ends of the tooth holder 1 are the clamping end 11 and the sleeve end 12 respectively, and the clamping end 11 and the sleeve end 12 are an integrated structure with higher structural strength and stronger bearing capacity. At this time, a longitudinally extending bayonet 111 is provided on the clamping end 11. During installation, the bayonet 111 is clamped on the edge of the bucket to achieve the installation of the tooth holder 1 on the bucket, while also increasing the connection area between the tooth holder 1 and the bucket, ensuring the stability and reliability of the tooth holder 1 after installation. In addition, the sleeve end 12 is extended toward the side away from the bucket, so that the sleeve end 12 can protrude from the edge of the bucket to form a tooth-shaped structure on the bucket, which is convenient for excavation. In addition, a through positioning hole 121 is provided on the sleeve end 12, and the positioning hole 121 provides conditions for the subsequent installation of the tooth tip 2 on the sleeve end 12. At the same time, the outer wall of the clamping end 11 is arranged to protrude from the outer wall of the sleeve end 12, so that a boss 112 can be formed at the connection between the outer wall of the clamping end 11 and the outer wall of the sleeve end 12, providing conditions for subsequently maintaining the flatness of the outer surfaces of the tooth tip 2 and the tooth seat 1.

[0026] Specifically, one end of the tooth tip 2 is set as a tip, which serves as the first contact part for excavation, so as to facilitate insertion into the excavated object. At the same time, a sleeve hole with an opening is provided at the other end of the tooth tip 2, and a penetrating connection hole 21 is also provided at the end of the tooth tip 2 where the sleeve hole is provided, and the connection hole 21 is connected to the sleeve hole, so that when the tooth tip 2 is subsequently installed on the tooth seat 1, the sleeve hole can be sleeved outside the sleeve end 12 of the tooth seat 1, and at the same time, the connection hole 21 and the positioning hole 121 are directly opposite, which provides conditions for the subsequent connection between the tooth tip 2 and the tooth seat 1 through the connection hole 21 and the positioning hole 121. At the same time, the wall thickness of the sleeve hole is set to be consistent with the protruding height of the boss 112, so that when the tooth tip 2 is installed on the tooth seat 1, the outer surface of the tooth tip 2 can be flush with the outer surface of the tooth seat 1, achieving a smooth transition of the outer surface of the connection between the tooth tip 2 and the tooth seat 1, thereby avoiding the formation of a step between the connection between the tooth tip 2 and the tooth seat 1 after the tooth tip 2 and the tooth seat 1 are installed, thereby avoiding the problem of excavated material residue due to the step, so that the bucket tooth can be pulled out of the excavated material or the excavated material can be poured out of the bucket. The self-cleaning operation of the bucket tooth is met, and there is no need for manual cleaning of the bucket tooth frequently, the labor burden is lighter, and it is more convenient to use.

[0027] Specifically, the pin is inserted from one end of the connecting hole 21 of the tooth tip 2. At the same time, the pin passes through the positioning hole 121 on the sleeve end 12 of the gear seat 1 and then comes out from the other end of the connecting hole 21. The pin is used as a connecting limit structure between the tooth tip 2 and the gear seat 1 to prevent the tooth tip 2 from falling off the sleeve end 12 of the gear seat 1, thereby providing higher safety assurance.

[0028] More specifically, the outer surface of the end of the clamping end 11 of the tooth holder 1 away from the sleeve end 12 is arranged in an inclined surface. At this time, the inclined surface of the clamping end 11 of the tooth holder 1 is inclined toward one side of the bucket, so that the thickness of the end of the clamping end 11 of the tooth holder 1 away from the sleeve end 12 gradually becomes thinner, and gradually becomes thinner toward the bucket side, so as to achieve a smooth transition between the tooth holder 1 and the bucket wall of the bucket, which can effectively avoid the problem of the formation of steps between the end of the tooth holder 1 and the bucket, which is easy to cause the residue of excavated materials, and the self-cleaning effect is better. In addition, the length of the bayonet 111 of the clamping end 11 of the tooth holder 1 is set to be greater than 1.5 times the length of the sleeve end 12, so that the connection length between the clamping end 11 of the tooth holder 1 and the bucket can be longer, which can not only make the clamping end 11 of the tooth holder 1 used as a reinforcing rib of the bucket, but also increase the connection strength between the tooth holder 1 and the bucket and the bearing capacity of the tooth holder 1, and the structural design is more reasonable.

[0029] Figure 3 This is a structural diagram of a side filling block of a preferred embodiment of the utility model. Figure 1 and Figure 3 As shown, side filling blocks 3 are also provided on both sides of the bucket teeth. At this time, the side filling blocks 3 are arranged on both sides of the corresponding tooth holder 1. The steps formed by the connection parts between the two sides of the bucket teeth and the bucket are filled by the side filling blocks 3, which provides conditions for preventing the residue of excavated objects and increasing the self-cleaning ability in the future. At this time, the side filling blocks 3 are set as a triangular structure. When installing, one side of the side filling blocks 3 is attached to one side of the installed tooth holder 1 and the tooth tip 2, so that the side filling blocks 3 can fill the space on both sides of the corresponding bucket teeth to avoid the residue of excavated objects. At the same time, a socket 311 corresponding to the bayonet 111 is opened on one corner of the side filling block 3. When installing, the socket 311 of the side filling block 3 is clamped on the edge of the bucket, that is, the plug-in connection of the side filling block 3 on the bucket is realized through the socket 311, which is convenient and fast to connect. At the same time, the connection area between the side filling block 3 and the edge of the bucket is larger, the connection strength is higher, the bearing capacity is stronger, it is not easy to be damaged, and the service life is longer.

[0030] More specifically, the corner of the side filling block 3 away from the tooth seat 1 and the tooth tip 2 is set as the transition portion 312. At this time, the upper and lower side surfaces of the transition portion 312 are arranged in an inclined surface, so that the thickness of the transition portion 312 on the side away from the bucket tooth becomes thinner and thinner. Preferably, the upper and lower side surfaces of the transition portion 312 are closed toward the middle plane of the side filling block 3 to form edges, so that the side wall of the transition portion 312 can also form an inclined transition structure, and the thickness gradually becomes thinner, which can also avoid the residue of excavated objects and meet the purpose of self-cleaning. In addition, the edges of the upper and lower side surfaces of the corner of the side filling block 3 with the socket 311 and the remaining corner are flush with the outer surfaces of the tooth seat 1 and the tooth tip 2, respectively, to avoid the formation of steps between the side filling block 3 and the corresponding bucket tooth to cause the residue of excavated objects, further improve the self-cleaning effect, and make the structural design more reasonable.

[0031] More specifically, the side filling block 3 includes a main connection block 31 and a sleeve block 32. At this time, one bucket tooth corresponds to one main connection block 31 and one sleeve block 32 at the same time, that is, the side filling blocks 3 on both sides of each bucket tooth are respectively the main connection block 31 and the sleeve block 32. At this time, a protruding shaft body 313 is provided on one side of the main connection block 31 close to the tooth seat 1, and the shaft body 313 is used as a pin connecting the tooth seat 1 and the tooth tip 2, so that the structural utilization rate is higher and the disassembly and assembly are more convenient. In addition, a socket 321 is provided on the side of the sleeve block 32 close to the gear seat 1. During installation, the end of the shaft body 313 facing away from the main connecting block 31 is passed through the connecting hole 21 and then extended to the outside of the connecting hole 21, so that the shaft body 313 can pass through the tooth tip 2 and the gear seat 1 and then pass out, thereby realizing the connection limit between the gear seat 1 and the tooth tip 2. At the same time, the end of the shaft body 313 extending outside the connecting hole 21 is inserted into the socket 321 of the sleeve block 32, so that the shaft body 313 can connect the main connecting block 31 and the sleeve block 32 through the socket 321, which can not only meet the connection and installation of the gear seat 1 and the tooth tip 2, but also realize the installation of the filling blocks 3 on both sides, thereby improving the disassembly and assembly efficiency.

[0032] More specifically, a locking hole 322 connected to the socket 321 is further provided on the sleeve block 32. At this time, when the shaft body 313 is inserted into the socket 321, a through hole 3131 corresponding to the locking hole 322 is also provided on the end of the shaft body 313 inserted into the socket 321, so that when the main connecting block 31 and the sleeve block 32 are connected through the shaft body 313, a positioning pin can be inserted into the locking hole 322 and the through hole 3131 to achieve the connection limit between the shaft body 313 and the socket 321, thereby preventing the shaft body 313 from escaping from the socket 321, thereby providing higher safety assurance.

[0033] More specifically, the clamping end 11 of the gear holder 1 is welded to the bucket, thereby achieving a stable and reliable connection between the clamping end 11 of the gear holder 1 and the bucket, with higher structural strength, stronger bearing capacity, longer service life and more reasonable structural design.

[0034] More specifically, both ends of the card hole 322 on the socket block 32 are countersunk structures. When the locating pin is installed in the card hole 322 and installed in place, both ends of the locating pin are located in the card hole 322, thereby hiding the end of the locating pin. Preferably, the end face of the locating pin is flush with the upper and lower side surfaces of the socket block 32, avoiding the protrusion of the end of the locating pin, maintaining the flatness of the upper and lower sides of the socket block 32, further preventing the residue of excavated objects, and improving the self-cleaning effect.

[0035] The bucket tooth self-cleaning device provided in this embodiment includes a tooth seat 1, a tooth tip 2 and a pin shaft; by connecting the clamping end 11 of the tooth seat 1 to the edge of the bucket and arranging its outer wall protruding from the outer wall of the sleeve end 12, a boss 112 is formed between the clamping end 11 and the sleeve end 12 of the tooth seat 1, thereby increasing the structural strength of the tooth seat 1, and improving the bearing capacity and installation stability of the tooth seat 1; at the same time, a sleeve hole is provided at one end of the tooth tip 2 and sleeved on the sleeve end 12 of the tooth seat 1, and the cavity wall thickness of the sleeve hole and the protruding height of the boss 112 are set. The tooth tip 2 and the tooth seat 1 are consistent in degree, so that when the tooth tip 2 is installed on the tooth seat 1, the outer surface of the tooth tip 2 can be flush with the outer surface of the tooth seat 1, thereby achieving a smooth transition of the outer surface of the connection between the tooth tip 2 and the tooth seat 1, avoiding the problem of steps between the tooth tip 2 and the tooth seat 1 after installation, which is easy to cause residual excavated matter. When the bucket tooth is pulled out of the excavated matter or the excavated matter is poured out of the bucket, the excavated matter can be smoothly taken away, realizing the self-cleaning operation of the bucket tooth, eliminating the need for manual frequent cleaning of the bucket tooth, reducing the labor burden, and improving the convenience of use.

[0036] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A bucket tooth self-cleaning device, characterized in that: include: A gear holder, the gear holder comprising a clamping end and a sleeve end, the clamping end is provided with a longitudinally extending bayonet, the bayonet is clamped on the edge of the bucket, the sleeve end extends toward a side away from the bucket, a through positioning hole is provided on the sleeve end, and an outer wall of the clamping end protrudes from an outer wall of the sleeve end to form a boss at the connection between the two; A tooth tip, one end of the tooth tip is a pointed end, the other end of the tooth tip is provided with a sleeve hole, one end of the tooth tip provided with the sleeve hole is provided with a penetrating connection hole, and the connection hole is connected to the sleeve hole, the sleeve hole is sleeved outside the sleeve connection end, and the connection hole and the positioning hole are directly opposite, and at the same time, the cavity wall thickness of the sleeve hole is consistent with the protruding height of the boss; A pin shaft is inserted into the connecting hole and also inserted into the positioning hole.

2. The bucket tooth self-cleaning device according to claim 1, characterized in that: The outer surface of one end of the clamping end away from the sleeve end is arranged in an inclined surface, and the inclined surface of the clamping end is inclined toward one side of the bucket, and the length of the clamping opening is greater than 1.5 times the length of the sleeve end.

3. The bucket tooth self-cleaning device according to claim 1, characterized in that: It also includes side filling blocks, which are arranged on both sides of each of the tooth seats. The side filling blocks are triangular structures. One side of the side filling block is attached to one side of the tooth seat and the tooth tip after installation. A socket corresponding to the socket is opened on a corner of the side filling block, and the socket is clamped on the edge of the bucket.

4. The bucket tooth self-cleaning device according to claim 3, characterized in that: The corner of the side filling block away from the tooth seat and the tooth tip is a transition portion, and the upper and lower side surfaces of the transition portion are arranged in an inclined surface. The upper and lower side surfaces of the transition portion are closed toward the middle plane of the side filling block to form edges. The side filling block is provided with a corner of the socket and the edges of the upper and lower side surfaces of the remaining corner are flush with the outer surfaces of the tooth seat and the tooth tip respectively.

5. The bucket tooth self-cleaning device according to claim 3, characterized in that: The side filling block includes a main connection block and a sleeve block. One bucket tooth corresponds to both the main connection block and the sleeve block. A protruding shaft is provided on the side of the main connection block close to the tooth seat. At the same time, the shaft is used as the pin. A socket is provided on the side of the sleeve block close to the tooth seat. An end of the shaft away from the main connection block passes through the connecting hole and extends outside the connecting hole, and the end of the shaft extending outside the connecting hole is inserted into the socket of the sleeve block.

6. The bucket tooth self-cleaning device according to claim 5, characterized in that: The sleeve block is provided with a clamping hole connected to the insertion hole, the end of the shaft body inserted into the insertion hole is provided with a through hole corresponding to the clamping hole, and a positioning pin is inserted into the clamping hole and the through hole.

7. The bucket tooth self-cleaning device according to claim 1, characterized in that: The clamping end of the gear seat is connected to the bucket by welding.

8. The bucket tooth self-cleaning device according to claim 6, characterized in that: Both ends of the clamping hole are countersunk structures, and both ends of the positioning pin are located in the clamping hole.

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