Auxiliary device for loading and unloading bucket teeth of excavator

Abstract

The invention relates to the technical field of excavator bucket tooth loading and unloading, and particularly discloses an excavator bucket tooth loading and unloading auxiliary device which comprises an excavation box and further comprises a plurality of disassembly auxiliary rods, a positioning device and a moving device, the multiple disassembly auxiliary rods are arranged, and the moving device is installed at the tops of the multiple disassembly auxiliary rods. The arranged dismounting auxiliary rod can be placed on the inner side of the tooth top and is in contact with the connecting shaft in the tooth top, so that only the dismounting auxiliary rod on the outer side needs to be knocked during dismounting, the knocking force can be transmitted to the next dismounting auxiliary rod through the connecting shaft and is sequentially transmitted downwards, the connecting shaft in the bucket tooth is knocked out, and the bucket tooth is dismounted; when the tooth tip is installed, the dismounting auxiliary rod on the outer side or the outer bucket tooth connecting shaft is knocked, the connecting shaft can transmit force to the next dismounting auxiliary rod to be sequentially transmitted downwards, replacement of the bucket tooth is completed, and the dismounting auxiliary rod can be positioned with other connecting shafts when used, so that stability during knocking is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of excavator bucket tooth loading and unloading, and in particular to an excavator bucket tooth loading and unloading auxiliary device. Background Art

[0002] The bucket teeth of an excavator are important parts of the excavator. They are composed of a tooth seat and a tooth tip. The two are connected by a pin shaft and play a great role in excavation work. They are easily damaged by collision with the excavation ground after long-term use. However, the main part of the bucket teeth that are worn out is the tooth tip. You only need to replace the tooth tip.

[0003] When replacing the tooth tip of the bucket tooth, a long pin is used. A worker is required to clamp and fix the long pin, aligning one end of the pin with the connecting shaft inside the tooth tip and the tooth seat, while another worker uses a tool to hit the pin. The hitting force of the pin is transmitted to the connecting shaft, which can be slowly knocked out to achieve the removal of the tooth tip. When installing a new tooth tip, due to the limited distance between the tooth seats, the middle tooth tip cannot be knocked directly, and a worker is still required to clamp the pin, while another worker knocks the pin to knock the connecting shaft into the tooth seat and the tooth tip. Disassembly is inconvenient and requires workers to cooperate in disassembly. For this reason, we propose an excavator bucket tooth loading and unloading auxiliary device. Summary of the invention

[0004] The object of the present invention is to provide an auxiliary device for loading and unloading bucket teeth of an excavator to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an auxiliary device for loading and unloading bucket teeth of an excavator, comprising a digging box, a plurality of tooth seats and tooth tips arranged at the front end of the digging box, and further comprising:

[0006] A disassembly auxiliary rod, wherein a plurality of the disassembly auxiliary rods are provided, and the plurality of the disassembly auxiliary rods are arranged on the inner side of the tooth tip;

[0007] A positioning device, the positioning device is installed at one end of the disassembly auxiliary rod, and the auxiliary device positions one end of the tooth tip fixing pin;

[0008] A moving device, wherein the moving device is installed on the top of the plurality of disassembly auxiliary rods, and the moving device drives the disassembly auxiliary rods to move;

[0009] A rotating device is connected to the top of the moving device, and two ends of the rotating device are installed on the outside of the digging box.

[0010] Wherein, the disassembly auxiliary rod comprises a plurality of first fixing rods respectively arranged on the inner side and the outer side of the tooth tip;

[0011] A telescopic cylinder is installed inside the first fixed rod, and the telescopic cylinder drives the first fixed rod to telescope;

[0012] The moving device is connected to the first fixing rod.

[0013] Wherein, the diameter of one end of the first fixing rod close to the positioning plate is wider than that of the other end.

[0014] Wherein, the positioning device comprises a fixing groove arranged on the inner side of one end of the first fixing rod, and a sliding rod is slidably installed inside the fixing groove;

[0015] A compression spring is installed between the bottom of the sliding rod and the inside of the fixing groove;

[0016] A positioning assembly is slidably connected to the outer side of the first fixing rod;

[0017] Wherein, the positioning assembly comprises a plurality of connecting grooves arranged outside one end of the first fixing rod, the connecting grooves are connected with the fixing grooves, and a positioning plate is rotatably mounted inside the connecting grooves;

[0018] A support block is installed at one end of the positioning plate, and a supporting groove slidably connected to the support block is arranged on the outer side of the sliding rod.

[0019] Wherein, the sliding rod is a tapered sliding rod.

[0020] Wherein, the moving device comprises a rotating motor installed on the top of the first fixed rod, a vertical electric telescopic rod is installed on the output end of the rotating motor, and a first sliding plate is installed on the top of a plurality of the vertical electric telescopic rods;

[0021] A second sliding plate is disposed outside the first sliding plate, and a sliding groove is disposed on the second sliding plate and is slidably connected to the outside of the first sliding plate;

[0022] Positioning springs are installed at both ends of the sliding groove, and the other end of the positioning spring is connected to the outer side of the first sliding plate;

[0023] The outer side of the second sliding plate is installed on the outer side of the rotating device.

[0024] Wherein, the rotating device comprises an inclined electric telescopic rod installed on the outer side of the second sliding plate, one end of the inclined electric telescopic rod is connected to a rotating rod, one end of the rotating rod is connected to a first driving motor, a moving block is installed on the outer side of the first driving motor, a screw rod is threadedly sleeved on the outer side of the moving block, and both ends of the screw rod are rotatably connected to clamping assemblies;

[0025] A second drive motor is installed at any end of the screw rod, and the second drive motor is installed on the top of the clamping assembly through a motor frame;

[0026] A long plate is slidably connected to the outer side of the moving block, and two ends of the long plate are mounted on the outer side of the clamping assembly.

[0027] Wherein, the clamping assembly packages are respectively arranged on U-shaped frames at both ends of the screw rod, and both ends of the long board are respectively connected to the two U-shaped frames;

[0028] The second drive motor is mounted on a U-shaped frame;

[0029] A clamping plate is provided on the inner side of the U-shaped frame, and a positioning rod is installed on the outer side of the clamping plate, and the positioning rod slides on the outer side of the U-shaped frame;

[0030] The outer side of the clamping plate is rotatably connected with a threaded rod, and the threaded rod is threadedly connected to the outer side of the U-shaped frame.

[0031] The present invention has at least the following beneficial effects:

[0032] The set disassembly auxiliary rod can be placed on the inner side of the tooth tip and contact with the connecting shaft inside the tooth tip. Therefore, when disassembling, you only need to knock the outer disassembly auxiliary rod, and the knocking force can be transmitted to the next disassembly auxiliary rod through the connecting shaft, and so on. The connecting shaft inside the bucket tooth is knocked out to disassemble the bucket tooth. When installing the tooth tip, the outer disassembly auxiliary rod or the outer bucket tooth connecting shaft is also knocked. The connecting shaft can transfer the force to the next disassembly auxiliary rod in sequence to complete the replacement of the bucket tooth. The disassembly auxiliary rod can be positioned with other connecting shafts when in use to maintain stability during knocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the connection between the structure moving device and the positioning device of the present invention;

[0035] Figure 3 This is a schematic diagram of the connection of the auxiliary rod for disassembly of the structure of the present invention;

[0036] Figure 4 This is a top view schematic diagram of the disassembly auxiliary rod of the structure of the present invention;

[0037] Figure 5 This is a cross-sectional schematic diagram of a disassembly auxiliary rod of the structure of the present invention;

[0038] Figure 6 This is a cross-sectional schematic diagram of the sliding rod structure of the present invention;

[0039] Figure 7 It is a top view schematic diagram of the structural rotating device of the present invention;

[0040] Figure 8 This is a schematic diagram of the first sliding plate and the second sliding plate of the structure of the present invention;

[0041] Fig. 9It is a schematic diagram of the structural clamping assembly of the present invention.

[0042] In the figure: 1, digging box; 10, tooth seat; 11, tooth tip; 2, disassembly auxiliary rod; 3, positioning device; 4, moving device; 5, rotating device; 20, first fixed rod; 21, telescopic cylinder; 30, fixed groove; 31, sliding rod; 32, compression spring; 33, positioning assembly; 330, connecting groove; 331, positioning plate; 332, support block; 333, support groove; 40, rotating motor; 41, electric telescopic rod; 42, first sliding plate; 43, second sliding plate; 44, sliding groove; 45, positioning spring; 50, tilting electric telescopic rod; 51, rotating rod; 52, first driving motor; 53, moving block; 54, screw rod; 55, clamping assembly; 56, second driving motor; 57, long board; 550, U-shaped frame; 551, clamping plate; 552, positioning rod; 553, threaded rod. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 9 The present invention provides a technical solution: an excavator bucket tooth loading and unloading auxiliary device, including an excavator bucket tooth loading and unloading auxiliary device, including a digging box 1, a plurality of tooth seats 10 and tooth tips 11 arranged at the front end of the digging box 1: and also including:

[0045] A disassembly auxiliary rod 2, wherein a plurality of disassembly auxiliary rods 2 are provided, and the plurality of disassembly auxiliary rods 2 are provided inside the tooth tip 11;

[0046] Positioning device 3, the positioning device 3 is installed at one end of the disassembly auxiliary rod 2, and the auxiliary device positions one end of the fixing pin of the tooth tip 11;

[0047] A moving device 4, the moving device 4 is installed on the top of the plurality of disassembly auxiliary rods 2, and the moving device 4 drives the disassembly auxiliary rods 2 to move;

[0048] A rotating device 5, the rotating device 5 is slidably connected to the top of the moving device 4, and both ends of the rotating device 5 are installed on the outside of the digging box 1;

[0049] When it is necessary to load and unload the bucket teeth, first fix the two sides of the rotating device 5 to the outside of the digging box 1, and open the moving device 4 to adjust the positions of the disassembly auxiliary rod 2 and the positioning device 3, so that the disassembly auxiliary rod 2 and the positioning device 3 are moved to the inside and outside of the tooth tip 11, and aligned with the connection axis between the tooth tip 11 and the tooth seat 10;

[0050] At this time, the staff only needs to knock the outermost disassembly auxiliary rod 2, and the outermost disassembly auxiliary rod 2 knocks the outer connecting shaft, and the connecting shaft transmits the knocking force to the next disassembly auxiliary rod 2 and the next pin shaft, so that multiple pin shafts can be knocked out of the connecting shaft of the tooth tip 11 and the gear seat 10 in sequence;

[0051] The rotating device 5 drives the disassembly auxiliary rod 2 and the positioning device 3 to rotate upward for a certain distance, and the staff can install the new tooth tip 11 on the tooth seat 10, and insert one end of the connecting shaft into the inner side of the tooth tip 11 of the tooth seat 10 until manual insertion is impossible;

[0052] The rotating device 5 drives the disassembly auxiliary rod 2 to move to the position corresponding to one end of the connection. The staff uses external force to knock the outer disassembly auxiliary rod 2, and the knocking force is transmitted to the next disassembly auxiliary rod 2. Multiple connecting shafts can be inserted into the tooth tip 11 and the tooth seat 10, and the connection between multiple tooth tips 11 and the tooth seat 10 is completed at the same time, thereby realizing the replacement of the tooth tip 11.

[0053] The disassembly auxiliary rod 2 includes a plurality of first fixing rods 20 respectively arranged on the inner side and the outer side of the tooth tip 11. The first fixing rod 20 arranged on the outer side of the tooth tip 11 is arranged as a straight rod, which is different from the shape of other first fixing rods 20. When fixing the new tooth tip 11 on the outer side, the connecting shaft can be inserted into the tooth tip 11 and the tooth seat 10, and the connecting shaft on the outer side can be directly inserted and knocked, so that the tooth tip 11 and the tooth seat 10 can be connected together. The plurality of first fixing rods 20 are respectively arranged on the inner side of the tooth tip 11. When knocking out the old connecting shaft, the first fixing rod 20 on the outer side can be aligned with the connecting shaft, and the connecting shaft can be knocked;

[0054] A telescopic cylinder 21 is fixedly installed inside the first fixed rod 20, and the telescopic cylinder 21 drives the first fixed rod 20 to be telescopic, so that the first fixed rod 20 becomes a telescopic rod, which facilitates the placement of the first fixed rod 20;

[0055] The moving device 4 is connected to the first fixing rod 20;

[0056] The positioning device 3 includes a fixing groove 30 arranged inside one end of the first fixing rod 20, and a sliding rod 31 is slidably installed inside the fixing groove 30;

[0057] A compression spring 32 is fixedly installed between the bottom of the sliding rod 31 and the inside of the fixing groove 30;

[0058] The first fixing rod 20 is slidably connected to the outer side thereof with a positioning assembly 33;

[0059] The positioning assembly 33 includes a plurality of communication grooves 330 disposed outside one end of the first fixing rod 20, the communication grooves 330 are connected to the fixing grooves 30, and a positioning plate 331 is rotatably installed inside the communication grooves 330 via a rotating shaft;

[0060] A support block 332 is fixedly mounted on one end of the positioning plate 331, a support groove 333 slidably connected to the support block 332 is arranged on the outer side of the sliding rod 31, and the sliding rod 31 is arranged as a tapered sliding rod 31;

[0061] The diameter of one end of the first fixing rod 20 close to the positioning plate 331 is wider than the other end and wider than the connecting shaft. The other end of the first fixing rod 20 is narrower than the connecting shaft between the tooth tip 11 and the tooth seat 10, so as to facilitate movement inside the tooth tip 11 and the tooth seat 10.

[0062] The positioning device 3 includes a rotating motor 40 fixedly mounted on the top of the first fixed rod 20, a vertical electric telescopic rod 41 is fixedly mounted on the output end of the rotating motor 40, and a first sliding plate 42 is mounted on the top of the plurality of vertical electric telescopic rods 41;

[0063] A second sliding plate 43 is disposed outside the first sliding plate 42, and a sliding groove 44 is disposed on the second sliding plate 43 and is slidably connected to the outside of the first sliding plate 42;

[0064] Positioning springs 45 are fixedly installed at both ends of the sliding groove 44, and the other end of the positioning spring 45 is fixedly connected to the outer side of the first sliding plate 42;

[0065] The outer side of the second sliding plate 43 is mounted on the outer side of the rotating device 5;

[0066] When disassembling the old tooth tip 11, the rotating device 5 drives the second sliding plate 43, the first sliding plate 42 and the vertical cylinder to rotate to the top of the tooth tip 11, and then opens the vertical cylinder, which drives the disassembly auxiliary rod 2 to move and align with the connecting shaft between the tooth tip 11 and the tooth seat 10, and aligns the positioning device 3 with the end of the connecting shaft;

[0067] When the telescopic cylinder 21 is opened, the telescopic cylinder 21 drives the first fixed rod 20 to telescope, so that the narrower end of the first fixed rod 20 is aligned with the connecting shaft, and the wider end of the first fixed rod 20 is placed close to the other connecting shaft;

[0068] Finally, the first fixing rod 20 on the outermost side of the tooth tip 11 is struck, and the first fixing rod 20 transmits the force to the connecting shaft, and the connecting shaft is connected to the next first fixing rod 20 connected thereto, and the connecting shaft abuts against the first fixing rod 20, thereby abutting against the sliding rod 31, and pressing the sliding rod 31, the sliding rod 31 slides down, squeezing the positioning plate 331, and the positioning plate 331 rotates to clamp and fix one end of the connecting shaft, thereby completing the connection of multiple link shafts and the disassembly auxiliary rod 2;

[0069] When knocking, the disassembly auxiliary rod 2 drives the vertical cylinder and the first sliding plate 42 to slide along the inside of the second sliding plate 43, which will not affect the knocking of the disassembly auxiliary rod 2. In the process of knocking, the connecting shaft abuts against the position of the disassembly auxiliary rod 2, so that the top of the first sliding plate 42 can be knocked. The first sliding plate 42 will not slide due to the rebound force of the positioning spring 45 until the connecting shaft is knocked out of the connection between the tooth tip 11 and the tooth seat 10;

[0070] The rotating device 5 includes a tilting electric telescopic rod 50 installed and fixed on the outer side of the second sliding plate 43. There are three tilting electric telescopic rods 50. One end of the three tilting electric telescopic rods 50 is fixedly connected to a rotating rod 51. The inner side of the rotating rod 51 is fixedly connected to a first driving motor 52. The first driving motor 52 is a double-headed motor. A moving block 53 is fixedly installed on the outer side of the first driving motor 52. There are three moving blocks 53. The middle moving block 53 is fixedly connected to the first driving motor. The two moving blocks 53 at both ends are rotatably connected to the two ends of the rotating rod 51 respectively. The outer sides of the three moving blocks 53 are threadedly sleeved with screw rods 54. The two ends of the screw rods 54 are rotatably connected to clamping components 55 through rotating shafts.

[0071] A second drive motor 56 is fixedly mounted on either end of the screw rod 54, and the second drive motor 56 is fixedly mounted on the top of the clamping assembly 55 through a motor frame;

[0072] A long plate 57 is slidably disposed on the outer side of the moving block 53, and both ends of the positioning plate 331 are fixedly mounted on the outer side of the clamping assembly 55;

[0073] The clamping assembly 55 includes U-shaped frames 550 which are rotatably arranged at both ends of the screw rod 54, and both ends of the long plate 57 are fixedly connected to the two U-shaped frames 550;

[0074] The driving motor is fixedly mounted on the U-shaped frame 550;

[0075] A clamping plate 551 is slidably disposed inside the U-shaped frame 550, and a positioning rod 552 is fixedly installed outside the clamping plate 551, and the positioning rod 552 slides outside the U-shaped frame 550;

[0076] The outer side of the clamping plate 551 is rotatably connected with a threaded rod 553 via a rotating shaft, and the threaded rod 553 is threadedly connected to the outer side of the U-shaped frame 550;

[0077] When working, first clamp the two U-shaped frames 550 on both sides of the digging box 1, and then rotate the threaded rod 553, which drives the positioning plate 331 to move and be fixedly installed on the outer side of the digging box 1;

[0078] When the second drive motor 56 is turned on, the second drive motor 56 drives the screw rod 54 to rotate, and the screw rod 54 drives the moving block 53 to move, and the moving block 53 drives the second drive motor 56 and the tilting electric telescopic rod 50 to move, and the tilting electric telescopic rod 50 rotates to drive the second sliding plate 43 and the first sliding plate 42 to move, so that the position of the disassembly auxiliary rod 2 can be adjusted, so that the disassembly auxiliary rod 2 is located on the inner side of the tooth tip 11, and the two ends of the disassembly auxiliary rod 2 are respectively in contact with the connecting shafts of the tooth tip 11 and the tooth seat 10 at both ends;

[0079] At the same time, when the tooth tip 11 is disassembled, one end of the auxiliary rod enters the inside of the tooth seat 10 of the tooth tip 11, and the second drive motor 56 can drive one end of the disassembly auxiliary rod 2 to move out from the inside of the tooth seat 10 of the tooth tip 11;

[0080] When the disassembly is completed, the first drive motor 52 is turned on, and the first drive motor 52 drives the rotating rod 51 and the tilting electric telescopic rod 50 to rotate, so that the disassembly auxiliary rod 2 can be moved out from the inner side of the tooth tip 11;

[0081] Install the new tooth tips 11 on the tooth holders 10 respectively, and insert the connecting shaft into the new tooth tips 11 and the inner side of the tooth holder 10 at the same time, until the connecting shaft cannot be inserted manually;

[0082] The rotary motor 40 is rotated, and the rotary motor 40 drives the disassembly auxiliary rod 2 to rotate 180 degrees, so that the positioning device 3 faces the end of the connecting shaft of the tooth tip 11 and the tooth seat 10, and the other end of the first fixed rod 20 is driven by the telescopic cylinder 21 to penetrate into the inner side of the connection between the tooth tip 11 and the tooth seat 10, and abuts against the other connecting shaft;

[0083] When the first fixing rod 20 on the outermost side of the tooth tip 11 is struck, the first fixing rod 20 strikes the connecting shaft, and at the same time, the sliding rod 31 at one end of the first fixing rod 20 is squeezed, and the positioning plate 331 rotates to clamp and fix one end of the connecting shaft, so that the striking force can be stably transmitted, avoiding the misalignment of the first fixing rod 20 and the connecting shaft during the striking;

[0084] When all the connecting shafts are knocked into the connection between the tooth tip 11 and the tooth seat 10, the replacement is completed. The entire device is removed from the digging box 1, and the tooth tip 11 can be replaced and disassembled by one person, which is convenient to use.

[0085] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for loading and unloading bucket teeth of an excavator, comprising a digging box (1), a plurality of tooth seats (10) and tooth tips (11) arranged at the front end of the digging box (1): characterized in that: Also includes: A disassembly auxiliary rod (2), wherein a plurality of the disassembly auxiliary rods (2) are provided, and the plurality of the disassembly auxiliary rods (2) are arranged on the inner side of the tooth tip (11); A positioning device (3), the positioning device (3) being mounted on one end of the disassembly auxiliary rod (2), the auxiliary device positioning one end of the fixing pin of the tooth tip (11); A moving device (4), wherein the moving device (4) is installed on the top of the plurality of disassembly auxiliary rods (2), and the moving device (4) drives the disassembly auxiliary rods (2) to move; A rotating device (5), the rotating device (5) is connected to the top of the moving device (4), and both ends of the rotating device (5) are installed on the outside of the digging box (1).

2. The excavator bucket tooth loading and unloading auxiliary device according to claim 1, characterized in that: The disassembly auxiliary rod (2) comprises a plurality of first fixing rods (20) respectively arranged on the inner side and the outer side of the tooth tip (11); A telescopic cylinder (21) is installed inside the first fixed rod (20), and the telescopic cylinder (21) drives the first fixed rod (20) to telescope; The moving device (4) is connected to the first fixing rod (20).

3. The excavator bucket tooth loading and unloading auxiliary device according to claim 2, characterized in that: The diameter of one end of the first fixing rod (20) close to the positioning plate (331) is wider than that of the other end.

4. The excavator bucket tooth loading and unloading auxiliary device according to claim 1, characterized in that: The positioning device (3) comprises a fixing groove (30) arranged on the inner side of one end of the first fixing rod (20), and a sliding rod (31) is slidably installed inside the fixing groove (30); A compression spring (32) is installed between the bottom of the sliding rod (31) and the inside of the fixing groove (30); A positioning assembly (33) is slidably connected to the outer side of the first fixing rod (20).

5. The excavator bucket tooth loading and unloading auxiliary device according to claim 4, characterized in that: The positioning assembly (33) comprises a plurality of communication grooves (330) arranged on the outside of one end of the first fixing rod (20), the communication grooves (330) being connected to the fixing grooves (30), and a positioning plate (331) being rotatably mounted inside the communication grooves (330); A support block (332) is installed at one end of the positioning plate (331), and a supporting groove (333) slidably connected to the support block (332) is arranged on the outer side of the sliding rod (31).

6. The excavator bucket tooth loading and unloading auxiliary device according to claim 4, characterized in that: The sliding rod (31) is a tapered sliding rod (31).

7. The excavator bucket tooth loading and unloading auxiliary device according to claim 1, characterized in that: The moving device (4) comprises a rotating motor (40) mounted on the top of the first fixed rod (20), a vertical electric telescopic rod (41) being mounted on the output end of the rotating motor (40), and a first sliding plate (42) being mounted on the top of a plurality of the vertical electric telescopic rods (41); A second sliding plate (43) is arranged outside the first sliding plate (42), and a sliding groove (44) is arranged on the second sliding plate (43) and is slidably connected to the outside of the first sliding plate (42); Positioning springs (45) are installed at both ends of the sliding groove (44), and the other end of the positioning spring (45) is connected to the outer side of the first sliding plate (42); The outer side of the second sliding plate (43) is mounted on the outer side of the rotating device (5).

8. The excavator bucket tooth loading and unloading auxiliary device according to claim 1, characterized in that: The rotating device (5) comprises an inclined electric telescopic rod (50) mounted on the outside of the second sliding plate (43), one end of the inclined electric telescopic rod (50) is connected to a rotating rod (51), one end of the rotating rod (51) is connected to a first driving motor (52), a moving block (53) is mounted on the outside of the first driving motor (52), a screw rod (54) is threadedly sleeved on the outside of the moving block (53), and both ends of the screw rod (54) are rotatably connected to clamping assemblies (55); A second drive motor (56) is installed at any end of the screw rod (54), and the second drive motor (56) is installed on the top of the clamping assembly (55) through a motor frame; The outer side of the moving block (53) is slidably connected with a long plate (57), and both ends of the long plate (57) are mounted on the outer side of the clamping assembly (55).

9. The excavator bucket tooth loading and unloading auxiliary device according to claim 8, characterized in that: The clamping assembly (55) includes U-shaped frames (550) respectively arranged at both ends of the screw rod (54), and both ends of the long plate (57) are respectively connected to the two U-shaped frames (550); The second driving motor (56) is mounted on a U-shaped frame (550); A clamping plate (551) is provided on the inner side of the U-shaped frame (550), a positioning rod (552) is installed on the outer side of the clamping plate (551), and the positioning rod (552) slides on the outer side of the U-shaped frame (550); The outer side of the clamping plate (551) is rotatably connected to a threaded rod (553), and the threaded rod (553) is threadably connected to the outer side of the U-shaped frame (550).

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