Wood pulverizer based on excavator

Abstract

The utility model provides a timber crusher based on an excavator, which belongs to the technical field of crushers, and comprises an excavator body, an excavator forearm and a timber crushing device, the excavator forearm is connected to the excavator body, and the timber crushing device replaces a bucket and is connected to the lower end of the excavator forearm through a rotating shaft; the wood crushing device comprises a main frame, a crushing part, an upper feeding part and a lower feeding part, the main frame is connected with the excavator small arm, a crushing cavity is formed in the main frame, the crushing part is arranged in the crushing cavity, the upper feeding part and the lower feeding part are arranged at a feeding port of the crushing cavity, the lower feeding part is arranged below the upper feeding part, and the crushing cavity is connected with the excavator small arm. A discharging port in the bottom end of the smashing cavity is provided with a discharging conveying component, and one end of the discharging conveying component is provided with a conveying belt driving component. After wood is crushed by the wood crusher on a forest land, finished products are transported by a truck to be stored in a centralized manner, the overall crushed material transportation density is high, the transportation efficiency is high, and the transportation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a wood crusher based on an excavator. Background Art

[0002] Currently, in the process of processing wood in forestry logging, the main method is to cut the wood into sections and then transport it to a centralized wood processing factory for crushing, pulping, etc. by a transport vehicle. This method has several disadvantages: First, centralized processing requires a larger site to stack wood. In addition, the machines for crushing, wood unloading machines, finished wood chips, etc. all require space, which results in a large area occupied by the entire processing factory to operate normally. Second, when loading the wood, due to the bending of the tree trunk, the overall volume is often too large, but the actual weight is not much, resulting in low transportation efficiency. In the pruning of trees in landscaping, the treatment of branches and tree trunks is the same principle: If the pruned branches cannot be processed on site, they need to be transported to other places for processing, increasing transportation and labor costs, and making the wood processing cost high. Summary of the Invention

[0003] The purpose of the utility model is to provide a wood crusher based on an excavator to solve the technical problem of high existing wood processing cost. The wood crusher provided by the utility model can crush the wood on the forest land and then transport the crushed materials to the finished product centralized storage point. During the transportation process, the overall density of the crushed material transportation is relatively high, which can improve the transportation efficiency; it can also process and crush the branches and tree trunks pruned in landscaping on site and directly spread them back under the trees as biological fertilizers, reducing transportation and labor costs, and having low wood processing cost.

[0004] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0005] A wood crusher based on an excavator includes an excavator body, an excavator forearm, and a wood crushing device. The excavator forearm is connected to the excavator body, and the wood crushing device replaces the bucket and is connected to the lower end of the excavator forearm through a rotating shaft; the wood crushing device includes a main frame, a crushing component, an upper feeding component, and a lower feeding component. The main frame is connected to the excavator forearm, a crushing cavity is arranged inside the main frame, the crushing component is arranged inside the crushing cavity, the upper feeding component and the lower feeding component are respectively arranged at the feeding port of the crushing cavity, the lower feeding component is arranged below the upper feeding component, and a discharge conveying component is arranged at the discharge port at the bottom end of the crushing cavity, and one end of the discharge conveying component is provided with a conveyor belt driving component.

[0006] Further, a connecting seat is arranged at the upper end of the main frame, the connecting seat is connected to the excavator forearm, and a feeding port is arranged on one side of the main frame, and the feeding port is communicated with the feeding port of the crushing cavity.

[0007] Further, the crushing component includes a crushing tool holder, several cutting edges, and a crushing drive motor. The several cutting edges are respectively installed on the crushing tool holder. Both ends of the crushing tool holder are installed on the crushing cavity through crushing support bearings. One end of the crushing tool holder is connected with a first coupling, and the output end of the crushing drive motor is connected with the first coupling. The other end of the crushing tool holder is connected with a flywheel. The flywheel is arranged outside the crushing cavity, and a flywheel pressing plate is connected to the outside of the flywheel.

[0008] Further, the upper feeding component includes an upper feeding wheel mounting bracket, an upper feeding wheel, and an upper feeding drive motor. One end of the upper feeding wheel mounting bracket is connected to the main frame through a support oil cylinder. The upper feeding wheel mounting bracket is arranged above the upper feeding wheel, and both ends of the upper feeding wheel respectively pass through the upper feeding wheel mounting bracket. Both ends of the upper feeding wheel are installed on the main frame through upper feeding wheel support bearings. One end of the upper feeding wheel is connected with a second coupling, and the output end of the upper feeding drive motor is connected with the second coupling.

[0009] Further, the lower feeding component includes a lower feeding wheel and a lower feeding drive motor. Both ends of the lower feeding wheel are installed on the main frame through lower feeding wheel support bearings. One end of the lower feeding wheel is connected with a third coupling, and the output end of the lower feeding drive motor is connected with the third coupling.

[0010] Further, the conveyor belt drive component includes a conveyor belt idler and a conveying drive motor. The conveyor belt idler is installed at the lower end of the main frame through a conveyor belt idler support bearing. One end of the conveyor belt idler is connected with a fourth coupling, and the output end of the conveying drive motor is connected with the fourth coupling.

[0011] Further, the discharging conveying component includes a first conveying bracket, a second conveying bracket, and a conveying belt. One end of the first conveying bracket is connected to the lower end of the main frame, the other end of the first conveying bracket is connected to the second conveying bracket, and the conveying belt is wound around the first conveying bracket, the second conveying bracket, and the conveyor belt idler.

[0012] Further, the first conveying bracket is connected to the main frame through a pin shaft. A first oil cylinder and a second oil cylinder are respectively arranged in the middle of the first conveying bracket. One end of the first oil cylinder is connected to the lower side of the main frame through a pin shaft, one end of the second oil cylinder is connected to the second conveying bracket, and the first conveying bracket is connected to the second conveying bracket through a pin shaft.

[0013] Further, a connecting rod is arranged at the other end of the first conveying bracket, a connecting swing block is arranged at one end of the second conveying bracket, one end of the connecting swing block is connected to one end of the second oil cylinder, and one end of the connecting rod is connected to the upper part of the connecting swing block.

[0014] Furthermore, the other end of the second conveying support is provided with a second connecting seat. A long hole is formed in the second connecting seat. A roller bearing and a roller connecting rod are connected to the long hole. One end of the roller connecting rod is connected to the roller bearing, and rollers are arranged between the roller bearings.

[0015] The utility model has the following beneficial effects due to the adoption of the above technical solutions:

[0016] 1. In the utility model, the wood crusher can process wood on-site. The wood enters from the feeding port, is pushed into the crushing chamber via the upper feeding component and the lower feeding component, and is crushed by the crushing component. The crushed materials flow to the discharging conveying component from the discharging port at the lower end of the crushing chamber, and then the discharging conveying component is driven by the conveyor belt driving component to convey the crushed materials out. There is no need to transport the wood to a wood processing factory, which reduces the occupation of the site, improves the transportation efficiency, reduces the processing cost, and is efficient and flexible.

[0017] 2. In the utility model, the discharging conveying component can be folded. The first conveying support and the second conveying support are rotated and folded on the main frame by the contraction of the first oil cylinder, and then the second conveying support is rotated and folded on the first conveying support by the contraction of the second oil cylinder, so as to fold the discharging conveying component, which can shorten the conveying support to the maximum extent, reduce the external dimension of the equipment during transfer, and facilitate transfer transportation.

[0018] 3. In the utility model, after the wood is crushed on the forest land by the wood crusher, it is conveyed to a truck by the discharging conveying component. The truck transports the finished products to a centralized storage point for storage or uses them as biomass fuel and sends them to a boiler factory / biomass power plant as fuel. During the transportation process, the overall density of the crushed material transportation is relatively high, and the transportation efficiency is high; the crushed material can also be directly used as biological fertilizer and directly spread under the trees, reducing the transportation cost.

[0019] 4. In the utility model, the wood crushing device replaces the bucket, expands the functions of the excavator, and does not require additional power, realizing the multi-purpose use of the excavator. Description of the Drawings

[0020] Figure 1 is a schematic structural view of the wood crusher of the utility model;

[0021] Figure 2 is a schematic structural view of the wood crushing device of the utility model;

[0022] Figure 3 is an exploded view of the wood crushing device of the utility model;

[0023] Figure 4 is an exploded view of the crushing component of the utility model;

[0024] Figure 5 is a schematic structural view of the cutting edge of the utility modelFigure 1 ;

[0025] Figure 6 is a schematic diagram of the structure of the cutting edge of the present utility model Figure 2 ;

[0026] Figure 7 is an exploded view of the upper feeding component of the present utility model;

[0027] Figure 8 is an exploded view of the lower feeding component of the present utility model;

[0028] Figure 9 is an exploded view of the conveyor belt driving component of the present utility model;

[0029] Figure 10 is a schematic diagram of the structure of the discharging conveyor component of the present utility model;

[0030] Figure 11 is a schematic diagram of the connection between the first conveying support and the second conveying support of the present utility model;

[0031] Figure 12 is a folding schematic diagram of the wood crusher of the present utility model;

[0032] Figure 13 is a folding schematic diagram of the wood crushing device of the present utility model.

[0033] In the attached drawings, 10 - excavator body, 20 - excavator forearm, 1 - main frame, 11 - crushing chamber, 12 - connecting seat, 13 - feeding port, 2 - crushing component, 21 - crushing tool holder, 22 - several cutting edges, 221 - upper blade, 222 - lower blade, 223 - connecting hole, 224 - groove, 23 - crushing drive motor seat, 24 - crushing support bearing, 25 - first coupling, 26 - crushing drive motor, 27 - flywheel, 28 - flywheel pressing plate, 3 - upper feeding component, 31 - upper feeding wheel mounting bracket, 32 - upper feeding wheel, 33 - feeding wheel support bearing, 34 - support oil cylinder, 35 - second coupling, 36 - upper feeding drive motor mounting seat, 37 - upper feeding drive motor, 38 - rack, 4 - lower feeding component, 41 - lower feeding wheel, 42 - lower feeding wheel support bearing, 43 - third coupling, 44 - lower feeding drive motor mounting seat, 45 - lower feeding drive motor, 46 - lower feeding gear, 5 - conveyor belt driving component, 51 - conveyor belt idler, 52 - supported by conveyor belt idler support bearing, 53 - fourth coupling, 54 - conveying drive motor mounting seat, 55 - conveying drive motor, 6 - discharging conveyor component, 61 - first conveying support, 62 - conveying belt, 63 - second conveying support, 64 - first oil cylinder, 65 - second oil cylinder, 66 - connecting rod, 67 - connecting rocker, 68 - second connecting seat, 69 - long hole, 70 - idler bearing, 71 - idler, 72 - idler connecting rod. Detailed implementation mode

[0034] To make the purpose, technical solution and advantages of the present utility model clearer and more understandable, the following takes preferred embodiments with reference to the attached drawings and further elaborates on the present utility model in detail. However, it should be noted that many details listed in the specification are only for enabling the reader to have a thorough understanding of one or more aspects of the present utility model, and these aspects of the present utility model can be implemented even without these specific details.

[0035] As Figure 1-2 shown, a wood crusher based on an excavator includes an excavator body 10, an excavator forearm 20 and a wood crushing device. The excavator forearm 20 is connected to the excavator body 10, and the wood crushing device replaces the bucket and is connected to the lower end of the excavator forearm 20 through a rotating shaft; the wood crushing device replaces the bucket, expands the functions of the excavator, does not require additional power, and realizes the multi-purpose use of the excavator; the wood crushing device includes a main frame 1, a crushing component 2, an upper feeding component 3 and a lower feeding component 4. The main frame 1 is connected to the excavator forearm 20, a crushing chamber 11 is arranged inside the main frame 1, the crushing component 2 is arranged inside the crushing chamber 11, the crushing component 2 is used for crushing wood, the upper feeding component 3 and the lower feeding component 4 are respectively arranged at the feeding port of the crushing chamber 11, the lower feeding component 4 is arranged below the upper feeding component 3, the upper feeding component 3 and the lower feeding component 4 push the wood into the crushing chamber 11 for crushing, and a discharge conveying component 6 is arranged at the discharge port at the bottom end of the crushing chamber 11. The discharge conveying component 6 is used for conveying the crushed materials coming out of the crushing chamber 11, and a conveyor belt driving component 5 is arranged at one end of the discharge conveying component 6. The conveyor belt driving component 5 is used for driving the discharge conveying component 6 to operate. In the present utility model, the wood crusher can process wood on-site. The wood enters from the feeding port, is pushed into the crushing chamber by the upper feeding component and the lower feeding component, the wood is crushed by the crushing component, the crushed materials flow onto the discharge conveying component from the discharge port at the lower end of the crushing chamber, and then the conveyor belt driving component drives the discharge conveying component to convey the crushed materials out. There is no need to transport the wood to a wood processing factory, reducing the occupation of the site, improving the transportation efficiency, reducing the processing cost, and being efficient and flexible.

[0036] As Figure 2-3 shown, a connecting seat 12 is arranged at the upper end of the main frame 1. The connecting seat 12 is connected to the excavator forearm 20. A feeding port 13 is arranged on one side of the main frame 1. The feeding port 13 is communicated with the feeding port of the crushing chamber 11, so that the wood enters from the feeding port 13 and is pushed into the crushing chamber 11 by the upper feeding component 3 and the lower feeding component 4 for crushing.

[0037] As Figure 4-6As shown, the crushing component 2 includes a crushing tool holder 21, a plurality of cutting edges 22, and a crushing drive motor 26. The plurality of cutting edges 22 are respectively installed on the crushing tool holder 21. The crushing tool holder 21 is used to fix the cutting edges 22, and the cutting edges 22 are used to crush wood. Both ends of the crushing tool holder 21 are respectively installed on the crushing chamber 11 through crushing support bearings 24. The crushing drive motor 26 is connected to one end of the crushing tool holder 21. The crushing drive motor 26 is arranged outside the crushing chamber 11. The crushing drive motor 26 is used to drive the crushing tool holder 21 to rotate. The crushing tool holder 21 drives the cutting edges 22 to rotate at high speed to achieve the purpose of crushing wood. The cutting edges 22 and the crushing tool holder 21 are connected by bolts. The cutting edges 22 include an upper blade 221 and a lower blade 222. The upper blade 221 is arranged above the lower blade 222. The width of the lower blade 222 is larger than the width of the upper blade 221. A plurality of connection holes 223 are evenly opened on the upper blade 221. A plurality of grooves 224 are evenly opened on the lower blade 222. The depth of the grooves 224 is larger than the diameter of the connection holes 223. The bolts are sequentially arranged through the connection holes 223, the grooves 224, and the crushing tool holder 21. The width of the lower blade 222 is larger than the width of the upper blade 221. When crushing wood, first the lower blade 222 contacts the wood, thereby crushing the wood. The double-blade setting can ensure the strength of the cutting edge and ensure the stable progress of crushing wood. The setting of the connection holes and the grooves can, on the one hand, reduce the weight of the cutting edge, so that the cutting edge rotates at a higher speed driven by the crushing tool holder, and on the other hand, can firmly connect the blade and the crushing tool holder through bolts. The depth of the grooves 224 is larger than the diameter of the connection holes 223. When the lower blade is worn, loosen the bolts, push the lower blade forward, and then tighten the bolts, and the wood can still be crushed without replacing the blade. When the lower blade is worn again, the upper blade plays the role of crushing wood, extending the service life of the cutting edge and reducing the replacement frequency of the cutting edge, thereby improving the crushing efficiency. One end of the crushing tool holder 21 is connected with a first coupling 25. The outside of the crushing chamber 11 is connected with a crushing drive motor seat 23. The crushing drive motor 26 is connected to the crushing drive motor seat 23, and the output end of the crushing drive motor 26 is connected with the first coupling 25. The other end of the crushing tool holder 21 is connected with a flywheel 27. The flywheel 27 is arranged outside the crushing chamber 11. The outside of the flywheel 27 is connected with a flywheel pressing plate 28. The crushing drive motor drives the crushing tool holder to rotate, and the crushing tool holder drives the cutting edges to rotate, thereby crushing the wood.

[0038] As Figure 7As shown in the figure, the upper feeding component 3 includes an upper feeding wheel mounting bracket 31, an upper feeding wheel 32, and an upper feeding drive motor 37. One end of the upper feeding wheel mounting bracket 31 is connected to the main frame 1 through a support oil cylinder 34. The upper feeding wheel mounting bracket 31 is arranged above the upper feeding wheel 32, and both ends of the upper feeding wheel 32 pass through the upper feeding wheel mounting bracket 31. By adjusting the distance between the upper feeding wheel and the lower feeding wheel through the support oil cylinder, the upper feeding wheel and the lower feeding wheel can better push the wood into the crushing chamber for crushing. The upper feeding wheel 32 includes an upper feeding rotating shaft and a rotating cylinder. The upper feeding rotating shaft passes through the rotating cylinder. Gears are respectively arranged at both ends of the rotating cylinder, and a number of racks are evenly arranged on the rotating cylinder, and the racks are arranged between the gears; the gears and the racks can fix the wood and better push the wood into the crushing chamber. Both ends of the upper feeding wheel 32 are respectively installed on the main frame 1 through upper feeding wheel support bearings 33. One end of the upper feeding wheel 32 is connected to a second coupling 35. A side of the main frame 1 is connected to an upper feeding drive motor mounting seat 36, and an upper feeding drive motor 37 is connected to the upper feeding drive motor mounting seat 36. The output end of the upper feeding drive motor 37 is connected to the second coupling 35. The upper feeding drive motor drives the upper feeding wheel to rotate, and the racks of the upper feeding wheel fix the wood, so as to stably push the wood into the crushing chamber for crushing.

[0039] As Figure 8 shown in the figure, the lower feeding component 4 includes a lower feeding wheel 41 and a lower feeding drive motor 45. A number of circles of lower feeding gears 46 are arranged on the lower feeding wheel 41. Both ends of the lower feeding wheel 41 are respectively installed on the main frame 1 through lower feeding wheel support bearings 42. One end of the lower feeding wheel 41 is connected to a third coupling 43. A side of the main frame 1 is connected to a lower feeding drive motor mounting seat 44, and a lower feeding drive motor 45 is connected to the lower feeding drive motor mounting seat 44. The output end of the lower feeding drive motor 45 is connected to the third coupling 43. The lower feeding drive motor drives the lower feeding wheel to rotate, and the lower feeding gears arranged around the lower feeding wheel fix the wood, so as to stably push the wood into the crushing chamber for crushing.

[0040] As Figure 9As shown, the conveyor belt driving component 5 includes a conveyor belt roller 51 and a conveyor driving motor 55. The conveyor belt roller 51 is installed at the lower end of the main frame 1 through a conveyor belt roller support bearing 52. One end of the conveyor belt roller 51 is connected with a fourth coupling 53. One side of the main frame 1 is connected with a conveyor driving motor mounting seat 54, and a conveyor driving motor 55 is connected to the conveyor driving motor mounting seat 54. The output end of the conveyor driving motor 55 is connected with the fourth coupling 53. The conveyor driving motor drives the conveyor belt roller to rotate, and the conveyor belt roller drives the conveyor belt to run. After the wood grinder grinds the wood on the woodland, it is conveyed to the truck by the discharge conveying component, and then transported by the truck to the finished product centralized storage point for storage or used as biomass fuel and sent to the boiler factory / biomass power plant as fuel. During the transportation process, the overall density of the shredded material transportation is relatively high, and the transportation efficiency is high; the shredded material can also be directly used as biological fertilizer and directly spread back under the trees to reduce transportation costs.

[0041] As Figure 10-13As shown, the discharging conveying component 6 includes a first conveying support 61, a second conveying support 63 and a conveying belt 62. One end of the first conveying support 61 is connected to the lower end of the main frame 1, and the other end of the first conveying support 61 is connected to the second conveying support 63. The conveying belt 62 is wound around the first conveying support 61, the second conveying support 63 and the conveyor idler 51. The first conveying support 61 is connected to the main frame 1 by a pin shaft, and the first conveying support is rotatably connected to the main frame by a pin shaft, so that the first conveying support rotates around the main frame. The middle part of the first conveying support 61 is respectively provided with a first oil cylinder 64 and a second oil cylinder 65. One end of the first oil cylinder 64 is connected to the lower side of the main frame 1 by a pin shaft, and the first oil cylinder is rotatably connected to the main frame by a pin shaft, so that the first oil cylinder rotates around the main frame. One end of the second oil cylinder 65 is connected to the second conveying support 63. The first conveying support 61 is connected to the second conveying support 63 by a pin shaft, and the first conveying support is rotatably connected to the second conveying support by a pin shaft, so that the second conveying support rotates around the first conveying support. One end of the other end of the first conveying support 61 is provided with a connecting rod 66, and one end of the second conveying support 63 is provided with a connecting rocker 67. One end of the connecting rocker 67 is connected to one end of the second oil cylinder 65. One end of the connecting rod 66 is connected to the upper part of the connecting rocker 67. When the first oil cylinder contracts, the first conveying support and the second conveying support approach one side of the main frame, realizing the folding of the conveying support. Then, by contracting the second oil cylinder, through the lever amplification effect formed by the connecting rocker and the connecting rod, the second conveying support approaches one side of the first conveying support, realizing the folding of the second conveying support, which can shorten the conveying support to the greatest extent, reduce the external dimension of the equipment during transfer, and facilitate transfer transportation. When the first oil cylinder extends, the first conveying support and the second conveying support move away from one side of the main frame. Then, by extending the second oil cylinder, the second conveying support moves away from the first conveying support, realizing the unfolding of the conveying support, so as to convey the crushed materials. The other end of the second conveying support 63 is provided with a second connecting seat 68. A long hole 69 is opened on the second connecting seat 68. A roller bearing 70 and a roller connecting rod 72 are connected to the long hole 69. One end of the roller connecting rod 72 is connected to the roller bearing 70, and a roller 71 is arranged between the roller bearings 70. The roller connecting rod pulls the roller bearing to move on the long hole of the connecting seat for tensioning the conveying belt.

[0042] Working principle

[0043] The wood enters from the feeding port 13. The upper feeding driving motor 37 of the upper feeding component 3 and the lower feeding driving motor 45 of the lower feeding component 4 respectively drive the upper feeding wheel 32 and the lower feeding wheel 41 to push the wood into the crushing chamber 11. The crushing driving motor 26 of the crushing component 2 drives the crushing tool holder 21 to rotate, thereby driving the cutting edge 22 to crush the wood. The crushed material flows onto the conveying belt 62 of the discharging conveying component 6 from the discharging port at the lower end of the crushing chamber 11. The conveying driving motor 55 of the conveying belt driving component 5 drives the conveying belt roller 51 to rotate, thereby driving the conveying belt 62 to operate and convey the crushed material.

[0044] When the wood crusher is being transported, when the first oil cylinder 64 contracts, the first conveying support 61 and the second conveying support 63 move closer to one side of the main frame 1 to realize the folding of the conveying support. Then, when the second oil cylinder 65 contracts, through the lever amplification effect composed of the connecting swing block 67 and the connecting rod 66, the second conveying support 63 moves closer to one side of the first conveying support 61 to realize the folding of the second conveying support 63, which can shorten the conveying support to the greatest extent, reduce the external dimension of the equipment during transfer, and facilitate transfer transportation.

[0045] When the wood crusher is working, when the first oil cylinder 64 extends, the first conveying support 61 and the second conveying support 63 move away from one side of the main frame. Then, when the second oil cylinder 65 extends, the second conveying support 63 moves away from the first conveying support 61 to realize the unfolding of the conveying support, so as to convey the crushed material.

[0046] Through the wood crusher of the present utility model, the wood can be processed and crushed in the forest land and then the finished product can be pulled to the centralized storage point of the finished product, which can reduce the use of the site. During transportation, because it is the transportation of the finished crushed material with a relatively high overall density, the transportation efficiency can be improved. For the pruning working conditions of landscaping, the pruned branches and tree trunks can be processed and crushed on site, and can be directly broadcast back under the trees as biological fertilizers, or used as biomass fuels after crushing and sent to the boiler factory / biomass power plant as fuels, reducing the processing cost of the wood. The present utility model drives its work by using the hydraulic power of the excavator through the crushing device mounted on the excavator platform, expands the functions of the excavator, improves the work efficiency, and can solve the problems mentioned in the background technology at a relatively low cost.

[0047] The above is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A wood crusher based on an excavator, characterized in that: It includes an excavator body (10), an excavator forearm (20) and a wood crushing device. The excavator forearm (20) is connected to the excavator body (10), and the wood crushing device replaces the bucket and is connected to the lower end of the excavator forearm (20) through a rotating shaft. The wood crushing device includes a main frame (1), a crushing component (2), an upper feeding component (3) and a lower feeding component (4). The main frame (1) is connected to the excavator forearm (20). A crushing chamber (11) is arranged inside the main frame (1). The crushing component (2) is arranged inside the crushing chamber (11). The upper feeding component (3) and the lower feeding component (4) are respectively arranged at the feeding port of the crushing chamber (11). The lower feeding component (4) is arranged below the upper feeding component (3). An outlet conveying component (6) is arranged at the outlet of the bottom end of the crushing chamber (11), and a conveyor belt driving component (5) is arranged at one end of the outlet conveying component (6).

2. The wood crusher based on an excavator according to claim 1, wherein: A connecting seat (12) is arranged at the upper end of the main frame (1), and the connecting seat (12) is connected to the excavator forearm (20). A feeding port (13) is arranged on one side of the main frame (1), and the feeding port (13) is communicated with the feeding port of the crushing chamber (11).

3. The wood crusher based on an excavator according to claim 1, wherein: The crushing component (2) includes a crushing knife seat (21), a plurality of cutting edges (22) and a crushing driving motor (26). The plurality of cutting edges (22) are respectively installed on the crushing knife seat (21). The two ends of the crushing knife seat (21) are respectively installed on the crushing chamber (11) through crushing support bearings (24). One end of the crushing knife seat (21) is connected with a first coupling (25), and the output end of the crushing driving motor (26) is connected with the first coupling (25). The other end of the crushing knife seat (21) is connected with a flywheel (27). The flywheel (27) is arranged outside the crushing chamber (11), and a flywheel pressing plate (28) is connected to the outside of the flywheel (27).

4. The wood crusher based on an excavator according to claim 1, characterized in that: The upper feeding component (3) includes an upper feeding wheel mounting frame (31), an upper feeding wheel (32) and an upper feeding driving motor (37). One end of the upper feeding wheel mounting frame (31) is connected to the main frame (1) through a support oil cylinder (34). The upper feeding wheel mounting frame (31) is arranged above the upper feeding wheel (32). The two ends of the upper feeding wheel (32) respectively pass through the upper feeding wheel mounting frame (31). The two ends of the upper feeding wheel (32) are respectively installed on the main frame (1) through upper feeding wheel support bearings (33). One end of the upper feeding wheel (32) is connected with a second coupling (35), and the output end of the upper feeding driving motor (37) is connected with the second coupling (35).

5. The wood crusher based on an excavator according to claim 1, characterized in that: The lower feeding component (4) includes a lower feeding wheel (41) and a lower feeding driving motor (45). The two ends of the lower feeding wheel (41) are respectively installed on the main frame (1) through lower feeding wheel support bearings (42). One end of the lower feeding wheel (41) is connected with a third coupling (43), and the output end of the lower feeding driving motor (45) is connected with the third coupling (43).

6. The wood crusher based on an excavator according to claim 1, wherein: The conveyor belt driving component (5) includes a conveyor belt idler (51) and a conveying drive motor (55). The conveyor belt idler (51) is installed at the lower end of the main frame (1) through a conveyor belt idler support bearing (52). One end of the conveyor belt idler (51) is connected with a fourth coupling (53), and the output end of the conveying drive motor (55) is connected with the fourth coupling (53).

7. The wood crusher based on an excavator according to claim 1, wherein: The discharging conveying component (6) includes a first conveying bracket (61), a second conveying bracket (63) and a conveying belt (62). One end of the first conveying bracket (61) is connected with the lower end of the main frame (1), the other end of the first conveying bracket (61) is connected with the second conveying bracket (63), and the conveying belt (62) is wound around the first conveying bracket (61), the second conveying bracket (63) and the conveyor belt idler (51).

8. The wood grinder based on an excavator according to claim 7, characterized in that: The first conveying bracket (61) is connected with the main frame (1) through a pin shaft. A first oil cylinder (64) and a second oil cylinder (65) are respectively arranged in the middle of the first conveying bracket (61). One end of the first oil cylinder (64) is connected with the lower side of the main frame (1) through a pin shaft, one end of the second oil cylinder (65) is connected with the second conveying bracket (63), and the first conveying bracket (61) is connected with the second conveying bracket (63) through a pin shaft.

9. The wood crusher based on an excavator according to claim 7, wherein: A connecting rod (66) is arranged at the other end of the first conveying bracket (61), a connecting swing block (67) is arranged at one end of the second conveying bracket (63), one end of the connecting swing block (67) is connected with one end of the second oil cylinder (65), and one end of the connecting rod (66) is connected to the upper part of the connecting swing block (67).

10. A wood crusher based on an excavator according to claim 8, characterized in that: A second connecting seat (68) is arranged at the other end of the second conveying bracket (63). A long hole (69) is formed in the second connecting seat (68). A roller bearing (70) and a roller connecting rod (72) are connected to the long hole (69). One end of the roller connecting rod (72) is connected with the roller bearing (70), and rollers (71) are arranged between the roller bearings (70).

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