Excavator bucket tooth with protection structure

Abstract

The utility model relates to the technical field of excavator bucket teeth, and discloses an excavator bucket tooth with a protection structure, which comprises a bucket tooth main body, the outer wall of one side of the bucket tooth main body is fixedly connected with a fixing piece, the outer walls of the two opposite sides of the fixing piece are both provided with bolt holes, and two connecting grooves of a protection sleeve are aligned with two connecting blocks on the bucket tooth main body. A protective sleeve is pushed to enable a connecting block to slide along a connecting groove, a jacking block and a limiting block move along with insertion of the connecting block and compress a first spring, at the moment, the arc-shaped end of the connecting block gradually makes contact with the arc-shaped end of a clamping rod, and along with continuous insertion of the connecting block, the arc-shaped end of the clamping rod is squeezed by the arc-shaped end of the connecting block, so that the clamping rod is clamped. When the connecting block is inserted into the clamping rod, the second spring starts to move towards the inner side along the sliding hole, in the process, the second spring is compressed, elastic force storage is provided for ejection of the clamping rod, and when the clamping hole in the connecting block is inserted into the clamping rod, the elastic force is released by the second spring, so that the clamping rod is clamped into the clamping hole in the connecting block.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator bucket tooth technical field, specifically, relate to a kind of excavator bucket tooth with protection structure. BACKGROUND

[0002] As the key components of excavator, excavator bucket tooth undertakes the heavy responsibility of breaking, excavating and loading various materials (such as soil, stone, ore, etc.), and needs to be replaced due to serious wear during long-term use, which not only increases maintenance cost, but also affects the continuous operation ability of excavator.

[0003] According to the search, the Chinese patent with the publication number CN220352940U discloses an excavator bucket tooth with a protective sleeve, which includes a bucket tooth, a protection structure, a connecting structure, a fixing member and a slot. The utility model sets a protection structure at the lower end of the bucket tooth, and a damping device is arranged inside the protection structure. When the damping device works, it can avoid the wear of the bucket tooth during use. The setting of the shell reduces the working cost. The connecting structure is arranged inside the protection structure, and a mortise and tenon structure is arranged inside the connecting structure. The mortise and tenon structure realizes quick installation and disassembly, and the setting of the friction block improves the connection stability of the mortise and tenon structure.

[0004] The existing device has some drawbacks during use, for example: in the above-mentioned scheme, the protection structure and the bucket tooth are connected through the mortise and tenon, and the mortise and tenon are connected through the friction block to increase the connection tightness of the two. Since the excavator bucket tooth will produce frequent impact and vibration during operation, the relative movement between the mortise and tenon will be caused by frequent impact and vibration, which will accelerate the wear of the friction block and reduce the friction provided by the friction block, thereby further weakening the tightness of the connection. The lack of connection strength will cause the protection structure to fall off during operation, which seriously affects the operation efficiency of the excavator. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an excavator bucket tooth with a protection structure, which solves the problem of insufficient connection tightness between the protection structure and the bucket tooth in the above-mentioned scheme by connecting the mortise and tenon with the friction block.

[0006] The utility model provides the following technical scheme: an excavator bucket tooth with a protection structure, comprising:

[0007] A bucket tooth body is provided with a fixing member on one side of the outer wall, and a bolt hole is formed on the opposite sides of the outer wall of the fixing member. The end of the bucket tooth body away from the fixing member is set as an isosceles trapezoid.

[0008] The protective sleeve is sleeved outside the tooth body and is adapted to the shape of the tooth body;

[0009] The quick disassembly assembly is arranged on the tooth body and the protective sleeve and is used for connecting the tooth body and the protective sleeve.

[0010] In the above scheme, the protective sleeve is made of wear-resistant and corrosion-resistant materials, such as high-strength alloy steel and wear-resistant alloy, to resist wear and corrosion during operation, thereby prolonging the service life of the tooth. The quick disassembly assembly makes the replacement and maintenance of the protective sleeve more convenient, and the disassembly and installation of the protective sleeve can be easily realized without complex tools.

[0011] As a preferred embodiment of the above technical scheme, a placing groove is arranged on the inner side of the protective sleeve at the position of the isosceles trapezoid of one end of the tooth body, and a rubber pad is fixedly connected to the inner side of the placing groove.

[0012] In the above scheme, the rubber pad on the inner side of the protective sleeve can provide a buffering effect to reduce the direct impact between the protective sleeve and the tooth body during operation.

[0013] As a preferred embodiment of the above technical scheme, the quick disassembly assembly includes connecting blocks fixedly connected to the outer walls on opposite sides of the tooth body, and connecting grooves adapted to the size of the connecting blocks are arranged on the inner walls on opposite sides of the protective sleeve. Limiting grooves are arranged on the inner walls on opposite sides of the two connecting grooves, limiting blocks are slidingly connected to the inner sides of the four limiting grooves, top blocks are fixedly connected between the two limiting blocks in the same group, the top blocks are slidingly connected to the corresponding two limiting grooves through the corresponding two limiting blocks, a plurality of first mounting blocks are fixedly connected to the outer walls on one side of the two top blocks close to the connecting grooves, a plurality of second mounting blocks are fixedly connected to the inner walls on one side of the two connecting grooves close to the first mounting blocks, and first springs are fixedly sleeved to the outer sides of the first mounting blocks and the second mounting blocks in the same group.

[0014] In the above scheme, the sliding connection of the limiting grooves and the limiting blocks provides stable guidance for the movement of the top blocks, preventing the top blocks from deviating during movement.

[0015] As a preferred embodiment of the above technical scheme, the quick disassembly assembly includes clamping holes arranged on the outer walls on opposite sides of the two connecting blocks, sliding holes are arranged on the inner walls on opposite sides of the two connecting grooves, clamping rods are slidingly connected to the inner sides of the four sliding holes, second springs are fixedly connected to the ends of the four clamping rods close to the sliding holes, and the ends of the four second springs away from the clamping rods are fixedly connected to the inner walls on one side of the corresponding sliding holes.

[0016] In the above scheme, when the connecting blocks are inserted into the connecting grooves and reach the predetermined position, the clamping rods are automatically clamped into the clamping holes under the elastic force of the second springs, achieving quick locking.

[0017] As the above technical scheme is preferred, the connecting block is arc-shaped at one end close to the top block, and the opposite end of the two clamping rods in the same group is arc-shaped.

[0018] In the above scheme, the arc-shaped end of the connecting block can provide a smooth transition when gradually contacting the arc-shaped end of the clamping rod, avoiding the clamping, friction or damage caused by traditional right angles or sharp edges. The arc-shaped design allows the two components to distribute pressure more evenly when in contact, reducing resistance during insertion.

[0019] As the above technical scheme is preferred, the opposite two side walls of the protective sleeve are provided with moving grooves corresponding to the positions of the clamping rods, and the four moving grooves are slidably connected with pull blocks, and the opposite end of the four pull blocks close to the clamping rods is respectively fixedly connected with the corresponding clamping rods.

[0020] In the above scheme, the operator can manually pull the pull block to move the clamping rod along the sliding hole and disengage from the clamping hole, thereby realizing the unlocking operation.

[0021] Compared with the prior art, the utility model has the advantages of:

[0022] In the utility model, the clamping rod and the clamping hole in the quick disassembly assembly are tightly matched, and the clamping rod can be automatically clamped into the clamping hole under the elastic force of the second spring. Due to the tight matching of the clamping rod and the clamping hole and the elastic force of the second spring, the impact and vibration during the operation of the excavator can be effectively resisted, thereby ensuring that the connection between the tooth main body and the protective sleeve cannot be easily loosened. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of an excavator tooth with a protection structure;

[0024] Figure 2 It is a partial structure schematic view of an excavator tooth with a protection structure;

[0025] Figure 3 It is a sectional structure schematic view of an excavator tooth with a protection structure;

[0026] Figure 4 It is a quick disassembly assembly structure schematic view of an excavator tooth with a protection structure.

[0027] In the diagram: 10. Bucket tooth body; 11. Fixing component; 12. Pin hole; 13. Protective sleeve; 20. Placement slot; 21. Rubber pad; 3. Quick disassembly assembly; 301. Connecting block; 302. Connecting slot; 303. Limiting slot; 304. Limiting block; 305. Top block; 306. First mounting block; 307. Second mounting block; 308. First spring; 309. Locking hole; 310. Sliding hole; 311. Locking rod; 312. Second spring; 40. Moving slot; 41. Pulling block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Example

[0030] like Figures 1-4 As shown, this utility model provides a technical solution: an excavator bucket tooth with a protective structure, comprising: a bucket tooth body 10, a fixing member 11 fixedly connected to one side of the outer wall of the bucket tooth body 10, pin holes 12 being provided on both opposite outer walls of the fixing member 11, and an isosceles trapezoidal shape at one end of the bucket tooth body 10 away from the fixing member 11; a protective sleeve 13, which is fitted onto the outside of the bucket tooth body 10 and adapted to the shape of the bucket tooth body 10; and a quick-release assembly 3, which is disposed on the bucket tooth body 10 and the protective sleeve 13, and is used to connect the bucket tooth body 10 and the protective sleeve 13, with the inner side of the protective sleeve 13 located at the isosceles trapezoidal position at one end of the bucket tooth body 10. A placement groove 20 is provided, and a rubber pad 21 is fixedly connected to the inner side of the placement groove 20. In actual use, the pin hole 12 on the fixing member 11 is aligned with the corresponding hole on the bucket, the pin is inserted and passes through the pin hole 12 and the corresponding hole, so that the fixing member 11 is fixed on the bucket, thereby fixing the bucket tooth body 10. The protective sleeve 13 is made of wear-resistant and corrosion-resistant materials, such as high-strength alloy steel and wear-resistant alloy, to resist wear and corrosion during operation. The rubber pad 21 can provide a cushioning effect and reduce the direct impact between the protective sleeve 13 and the bucket tooth body 10 during operation. The protective sleeve 13 can be easily installed and removed by the quick disassembly component 3 without complicated tools.

[0031] As one implementation method in this embodiment, such as Figure 2 , Figure 3 and Figure 4As shown, the quick disassembly assembly 3 includes connecting blocks 301 fixedly connected to the opposite two side walls of the tooth body 10 respectively, the opposite two inner walls of the protective sleeve 13 are both provided with connecting grooves 302 matched with the size of the connecting blocks 301, the opposite two inner walls of the two connecting grooves 302 are both provided with limiting grooves 303, the inner sides of the four limiting grooves 303 are all slidably connected with limiting blocks 304, the same group of two limiting blocks 304 are both fixedly connected with top blocks 305, the top blocks 305 are slidably connected with the corresponding two limiting grooves 303 through the corresponding two limiting blocks 304, the outer walls of the two top blocks 305 close to the connecting grooves 302 are fixedly connected with a plurality of first mounting blocks 306 in an array, the inner walls of the two connecting grooves 302 close to the first mounting blocks 306 are both fixedly connected with a plurality of second mounting blocks 307 in an array, the outer sides of the same group of the first mounting blocks 306 and the second mounting blocks 307 are both fixedly sleeved with first springs 308, the quick disassembly assembly 3 includes clamping holes 309 provided on the opposite two side walls of the two connecting blocks 301 respectively, the opposite two inner walls of the two connecting grooves 302 are both provided with sliding holes 310, the inner sides of the four sliding holes 310 are all slidably connected with clamping rods 311, the ends of the four clamping rods 311 close to the sliding holes 310 are all fixedly connected with second springs 312, the ends of the four second springs 312 away from the clamping rods 311 are respectively fixedly connected with the inner walls of the corresponding sliding holes 310, the ends of the connecting blocks 301 close to the top blocks 305 are arc-shaped, the opposite ends of the same group of two clamping rods 311 are both arc-shaped, the four clamping rods 311 are used in cooperation with the corresponding clamping holes 309, the positions of the clamping rods 311 on the opposite two outer walls of the protective sleeve 13 are both provided with moving grooves 40, the inner sides of the four moving grooves 40 are all slidably connected with pulling blocks 41, the ends of the four pulling blocks 41 close to the clamping rods 311 are respectively fixedly connected with the corresponding clamping rods 311, and in the specific use process, the two connecting grooves 302 of the protective sleeve 13 are aligned with the two connecting blocks 301 on the tooth body 10, the protective sleeve 13 is pushed, the connecting blocks 301 slide along the connecting grooves 302, the top blocks 305 and the limiting blocks 304 will move with the insertion of the connecting blocks 301 and compress the first springs 308, at this time, the arc-shaped ends of the connecting blocks 301 will gradually contact the arc-shaped ends of the clamping rods 311, with the continuous insertion of the connecting blocks 301, the arc-shaped ends of the clamping rods 311 will be extruded by the arc-shaped ends of the connecting blocks 301 and start to move inwards along the sliding holes 310, in this process, the second springs 312 will be compressed to provide elastic reserve for the ejection of the clamping rods 311, when the clamping holes 309 on the connecting blocks 301 are inserted into the positions of the clamping rods 311, the second springs 312 release the elastic force to make the clamping rods 311 clamped into the clamping holes 309 on the connecting blocks 301, at the same time, the top blocks 305 are pressed against the clamping blocks under the elastic force of the first springs 308 to make the clamping holes 309 on the connecting blocks 301 firmly press against the clamping rods 311, when it is necessary to replace or maintain the protective sleeve 13, the pulling blocks 41 on the two sides of the protective sleeve 13 are pulled, the movement of the pulling blocks 41 drives the clamping rods 311 to move along the sliding holes 310,When the clamping rod 311 is completely separated from the clamping hole 309, the protective sleeve 13 is removed for replacement or maintenance.

[0032] Working principle: align the pin hole 12 on the fixing part 11 with the corresponding hole on the bucket, insert the pin into and through the pin hole 12 and the corresponding hole, fix the fixing part 11 on the bucket, and then fix the tooth body 10, align the two connecting grooves 302 of the protective sleeve 13 with the two connecting blocks 301 on the tooth body 10, push the protective sleeve 13, and the connecting block 301 slides along the connecting groove 302, the top block 305 and the limiting block 304 will move with the insertion of the connecting block 301 and compress the first spring 308, at this time, one end of the arc-shaped arrangement of the connecting block 301 will gradually contact one end of the arc-shaped arrangement of the clamping rod 311, with the continuous insertion of the connecting block 301, the arc-shaped end of the clamping rod 311 will be extruded by the arc-shaped end of the connecting block 301 and start to move inward along the sliding hole 310, in this process, the second spring 312 will be compressed to provide elastic force reserve for the ejection of the clamping rod 311, when the clamping hole 309 on the connecting block 301 is inserted into the position of the clamping rod 311, the second spring 312 releases the elastic force, and the clamping rod 311 is clamped into the clamping hole 309 on the connecting block 301, at the same time, the top block 305 is pressed against the clamping block under the action of the elastic force of the first spring 308, so that the clamping hole 309 on the connecting block 301 firmly presses against the clamping rod 311, when the protective sleeve 13 needs to be replaced or maintained, the pull block 41 on both sides of the protective sleeve 13 is pulled, the movement of the pull block 41 drives the clamping rod 311 to move along the sliding hole 310, so that the clamping rod 311 is separated from the clamping hole 309, and when the clamping rod 311 is completely separated from the clamping hole 309, the protective sleeve 13 is removed for replacement or maintenance.

[0033] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it.

Claims

1. A drag bit having a protective structure, characterized by, Include: The bucket tooth body (10), one side of the bucket tooth body (10) is fixedly connected with a fixed part (11), the opposite two sides of the fixed part (11) are provided with a latch hole (12), and the end of the bucket tooth body (10) away from the fixed part (11) is set as an isosceles trapezoid; The protective sleeve (13) is sleeved on the outer side of the bucket tooth body (10), and the protective sleeve (13) is adapted to the shape of the bucket tooth body (10); The quick disassembly assembly (3) is arranged on the bucket tooth body (10) and the protective sleeve (13), and the quick disassembly assembly (3) is used for connecting the bucket tooth body (10) and the protective sleeve (13).

2. The excavating machine tooth having a protective structure of claim 1, wherein: The protective sleeve (13) is provided with a placing groove (20) on the inner side of the isosceles trapezoidal end of the bucket tooth body (10), and the rubber pad (21) is fixedly connected to the inner side of the placing groove (20).

3. The excavating machine tooth having a protective structure of claim 1, wherein: The quick disassembly assembly (3) includes a connecting block (301) fixedly connected to the opposite two sides of the bucket tooth body (10), the opposite two inner walls of the protective sleeve (13) are provided with a connecting groove (302) adapted to the size of the connecting block (301), the opposite two inner walls of the two connecting grooves (302) are provided with a limiting groove (303), the inner sides of the four limiting grooves (303) are slidably connected with a limiting block (304), the same group of two limiting blocks (304) are fixedly connected with a top block (305), the top block (305) is slidably connected with the corresponding two limiting grooves (303) through the corresponding two limiting blocks (304), and the two top blocks (305) are fixedly connected with a plurality of first mounting blocks (306) on one side of the outer wall close to the connecting groove (302). The inner wall of the two connecting grooves (302) close to the first mounting block (306) is fixedly connected with a plurality of second mounting blocks (307), and the outer sides of the same group of the first mounting block (306) and the second mounting block (307) are fixedly sleeved with a first spring (308).

4. The excavating machine tooth having a protective structure of claim 3, wherein: The quick disassembly assembly (3) includes a clamping hole (309) arranged on the opposite two sides of the two connecting blocks (301), the opposite two inner walls of the two connecting grooves (302) are provided with a sliding hole (310), the inner sides of the four sliding holes (310) are slidably connected with a clamping rod (311), the one end of the four clamping rods (311) close to the sliding hole (310) is fixedly connected with a second spring (312), and the one end of the four second springs (312) away from the clamping rod (311) is fixedly connected with the inner wall of the corresponding sliding hole (310).

5. The excavating pick with protective structure of claim 4, wherein: The end of the connecting block (301) close to the top block (305) is arc-shaped, the opposite ends of the same group of two clamping rods (311) are arc-shaped, and the four clamping rods (311) are used in cooperation with the corresponding clamping holes (309).

6. The excavating pick with protective structure of claim 5, wherein: The protective sleeve (13) is provided with a moving groove (40) on the position corresponding to the clamping rod (311) on the opposite two side walls, and the inner side of the four moving grooves (40) is slidably connected with a pull block (41), and the end of the four pull blocks (41) close to the clamping rod (311) is fixedly connected with the corresponding clamping rod (311) respectively.

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