Bucket-wheel assembly for crawler-type bucket-wheel car loader

Abstract

The utility model discloses a bucket-wheel assembly for a crawler-type bucket-wheel car loader, and belongs to the technical field of bucket-wheel car loaders, the bucket-wheel assembly comprises a material taking arm, the material taking arm is used for being hinged to a rack, a material conveying mechanism is arranged in the material taking arm, and the right end of the material taking arm is located above the feeding end of a discharging device of a machine body; a rotating ring is rotationally connected to one side of the outer end of the material taking arm, a plurality of bucket wheels are evenly and fixedly arranged on the outer surface of the rotating ring along the circumference, and discharging holes are formed in the positions, corresponding to the bucket wheels, of the circumferential face of the rotating ring. When the bucket wheel is used, after taking materials, the bucket wheel rotates to the upper portion for blanking, the limiting device drives the scraping plate to move inwards on the inner top wall of the bucket wheel, the materials in the bucket wheel are assisted to fall, due to the fact that the scraping plate assists blanking, the blanking speed is high and blanking is thorough during blanking of the bucket wheel, and the material taking efficiency of the bucket wheel is improved; meanwhile, due to the fact that the scraping plate assists in discharging, the rotating speed of the rotating ring can be increased on the original basis, and the material taking efficiency of the bucket wheel is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of the bucket wheel loader, and in particular to a bucket wheel assembly for a crawler bucket wheel loader. BACKGROUND

[0002] The bucket wheel loader refers to a device capable of continuously loading and conveying materials. It mainly includes a machine body 2, a material taking arm provided at the left end of the machine body 2, a bucket wheel assembly rotatably connected to the left end of the material taking arm, the bucket wheel assembly rotating to take materials from a material pile, a conveying mechanism further included on the material taking arm, the bucket wheel rotating to an upper area after taking materials, the materials in the bucket wheel falling onto the conveying mechanism, the machine body 2 including a rack 34, a traveling mechanism provided at the lower end surface of the rack 34, a material unloading device 4 provided at the upper end surface of the rack 34, the conveying mechanism conveying materials to the material unloading device 4, the material unloading device 4 conveying the materials to the cargo box of a truck or a set position, and a crawler traveling assembly provided at the lower end surface of the rack 34.

[0003] The existing bucket wheel often has residual materials in the bucket wheel during material falling due to the characteristics of the materials or the high rotation speed of the bucket wheel rotating ring, thereby reducing the efficiency of the bucket wheel in loading materials.

[0004] According to the search, a bucket wheel loader is provided in patent publication No. CN215885607U, which includes a bucket wheel vehicle body frame, a bucket wheel large arm and a bucket wheel installed on the bucket wheel vehicle body frame, the bucket wheel is installed at the end of the bucket wheel large arm away from the bucket wheel vehicle body frame, and a collection bin is further provided between the bucket wheel and the bucket wheel large arm, a main oil cylinder is further provided between the bucket wheel large arm and the bucket wheel vehicle body frame; a telescopic large arm is further installed on the bucket wheel vehicle body frame, a conveying belt and a transfer bin are provided on the telescopic large arm, and the transfer bin is located directly below the end of the bucket wheel large arm; a material inlet is formed at the top of the transfer bin, a vertical downward vertical plate is provided at the material inlet, an outlet is formed in the side wall of the transfer bin, and one end of the conveying belt is located inside the transfer bin.

[0005] The above-mentioned scheme takes materials from a material pile by rotating a plurality of bucket wheels around a geometric center, and in the work, the materials in the bucket wheel are not completely fallen due to the characteristics of the materials or the high rotation speed of the bucket wheel assembly, thereby reducing the efficiency of the bucket wheel in loading materials. In order to solve the problem of incomplete falling of materials, the existing bucket wheel is provided with a hole in the top surface of the bucket wheel, and a plurality of chains are arranged in the hole. In use, when the bucket wheel loads materials, the materials are caught by the chains, and when the bucket wheel rotates to the upper area, the chains will sag to assist in material falling. However, in use, a large amount of materials will leak out between the chains, which also reduces the use efficiency of the bucket wheel, and the use of the chains increases the manufacturing cost of the bucket wheel. SUMMARY

[0006] The application aims to provide a bucket wheel assembly for a crawler-type bucket wheel car loader, which has the advantages of fast and complete material dropping speed of the bucket wheel, and effectively solves the problem of incomplete material dropping caused by too fast rotation speed of the bucket wheel or material characteristics in the prior art.

[0007] The application adopts the following technical scheme: a bucket wheel assembly for a crawler-type bucket wheel car loader, comprising a material taking arm, which is hinged to a machine frame, and a material feeding mechanism arranged in the material taking arm, and the right end of the material taking arm is located above the feeding end of a material unloading device of the machine body; a rotating ring is rotationally connected to one side of the outer end of the material taking arm, a plurality of bucket wheels are uniformly and fixedly arranged on the outer surface of the rotating ring along the circumference, and a material dropping hole is arranged at the position corresponding to the bucket wheel on the circumferential surface of the rotating ring; the inside of each bucket wheel is in communication with the corresponding material dropping hole, a material scraping plate is slidingly arranged on the inner top wall of the bucket wheel, a bucket wheel protective cover is fixedly arranged on the outer side of the rotating ring and connected with the material taking arm, and a limiting device is fixedly arranged on the side of the bucket wheel protective cover; when the bucket wheel rotates to the limiting device, the limiting device drives the material scraping plate to move inward on the inner top wall of the bucket wheel.

[0008] Further, the upper end surface of the material taking arm is fixedly provided with a material receiving plate, the top end of the material receiving plate is inclinedly extended to the inside of the rotating ring, and the bottom end of the material receiving plate is located above the material taking arm.

[0009] Further, the rear side of the material taking arm is fixedly provided with a material blocking plate, the outer surface of the material blocking plate is attached to the inner side wall of the rotating ring, the material blocking plate is located on the left side in the rotating ring, the top end of the material blocking plate is fixedly provided with a butt joint plate, and the outer end of the butt joint plate is fixedly provided with the material receiving plate.

[0010] Further, the inner top wall of the bucket wheel is fixedly provided with a guide rail, a guide groove is arranged at the position corresponding to the guide rail on the material scraping plate, and the material scraping plate is slidingly connected with the bucket wheel through the guide rail and the guide groove; a driving rod is slidingly arranged in the bucket wheel along the direction of the guide rail, the inner end of the driving rod is fixedly provided with the material scraping plate, the outer end of the driving rod is extended to the outside of the bucket wheel and is fixedly provided with a limiting rod, a spring is sleeved on the driving rod between the limiting rod and the bucket wheel, the outer end of the spring is fixedly provided with the limiting rod, the inner end of the spring is fixedly provided with the bucket wheel, the outer end of the guide rail is fixedly provided with a limiting block, and a containing groove is arranged at the position corresponding to the limiting block on the material scraping plate; the spring is in a stretched state and always drives the material scraping plate to move outward.

[0011] Further, the limiting device comprises a limiting plate fixedly provided on the side of the bucket wheel protective cover, and a limiting groove is arranged on the front side of the limiting plate.

[0012] Further, the limiting groove comprises an inner ring groove, an outer ring groove and a vertical groove, the top end of the vertical groove communicates with the outer ring groove, and the bottom end of the vertical groove communicates with the inner ring groove; the bottom end of the inner ring groove communicates with the notch provided on the limiting plate; the inner ring groove and the outer ring groove are concentric with the rotating ring; when the scraping plate is on the outside of the inner top wall of the bucket wheel under the action of the spring, the movement track of the rear end of the limiting rod coincides with the inner ring groove; when the scraping plate is on the inside of the inner top wall of the bucket wheel and contacts with the inner side wall of the bucket wheel, the movement track of the rear end of the limiting rod coincides with the outer ring groove.

[0013] Further, the material taking arm comprises two guard plate assemblies, the material conveying mechanism is arranged in the two guard plate assemblies, the rear side of the rear guard plate assembly is fixedly provided with a fixed arm, the outer end of the fixed arm is fixedly provided with a bearing seat, the inner part of the bearing seat is rotationally connected with a main shaft, the outer surface of the main shaft is fixedly provided with an inner plate, and the outer surface of the inner plate is fixedly connected with the rotating ring; the outer side of the fixed arm is fixedly provided with a mounting plate, the upper end surface of the mounting plate is fixedly provided with a first motor, the output shaft of the first motor is fixedly provided with an input shaft of a gear box, and the output shaft of the gear box is fixedly provided with the main shaft.

[0014] Further, the guard plate assembly comprises two cross beams arranged in parallel, a plurality of connecting rods are fixedly arranged between the two cross beams, so that the two cross beams are fixed as a whole; the right end of the cross beam extends to above the feeding end of the discharging device and is rotationally connected with the rack; the lower end surface of the cross beam and the left side surface of the rack are provided with hydraulic telescopic rods, the fixed end of the hydraulic telescopic rod is hinged to the left side surface of the rack, and the output end of the hydraulic telescopic rod is hinged to the lower end surface of the two cross beams.

[0015] Further, the material conveying mechanism comprises a first driving wheel rotationally connected between the left ends of the two guard plate assemblies and a first driven wheel rotationally connected between the right ends of the two guard plate assemblies, and the first driving wheel and the first driven wheel are transmissionally connected through a first belt.

[0016] Further, the left end of the front guard plate assembly is fixedly provided with a second motor, and the output shaft of the second motor is fixedly provided with the first driving wheel.

[0017] Firstly, by arranging the limiting device and the scraping plate, when the bucket wheel takes materials and rotates to drop the materials, the limiting device drives the scraping plate to move inward on the inner top wall of the bucket wheel, so as to help the materials in the bucket wheel to drop, the dropping speed of the materials is fast and the dropping is complete, and the material taking efficiency of the bucket wheel is improved; meanwhile, the rotating speed of the rotating ring can be increased on the basis of the original speed, and the material taking efficiency of the bucket wheel is further improved.

[0018] Further, the application sets the limiting plate, the inner ring groove, the outer ring groove, the vertical groove, the scraping plate, the driving rod, the limiting rod and the spring, when the device is used, the bucket wheel rotates counterclockwise with the rotating ring, the bucket wheel starts to shovel and take materials when it is below the bottom and the left side, when the bucket wheel rotates and rises above the blocking plate, the rear end of the limiting rod enters the inner ring groove from the gap, the bucket wheel continues to rotate and starts to drop materials, the rear end of the limiting rod enters the vertical groove from the inner ring groove, the bucket wheel rotates, the limiting rod is retained in the vertical groove, so that the limiting rod, the driving rod and the scraping plate move left relative to the bucket wheel, so that the scraping plate moves left from the outside of the inner top wall of the bucket wheel to the inside and contacts with the inner side wall of the bucket wheel, and the scraping plate scratches the inner bottom wall of the bucket wheel when the bucket wheel drops materials, which assists the bucket wheel to drop materials.

[0019] Secondly, the application sets the hydraulic telescopic rod and the cross beam, when used, the two cross beams rotate around the hinge shaft of the frame through the extension and contraction of the hydraulic telescopic rod, so that the left end of the cross beam moves downward or upward, and then drives the bucket wheel assembly to move downward or upward, so as to adjust the pitch angle of the cross beam, and facilitate the bucket wheel assembly to take materials. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the whole and the fuselage of the application;

[0021] Figure 2 It is a front view structure schematic diagram of the whole and the fuselage of the application;

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the cross beam in the application;

[0023] Figure 4 It is a front view structure schematic diagram of the cross beam in the application;

[0024] Figure 5 It is a three-dimensional structure schematic diagram of the first motor in the application;

[0025] Figure 6 It is a three-dimensional structure schematic diagram of the receiving plate in the application;

[0026] Figure 7 It is a three-dimensional structure schematic diagram of the main shaft in the application;

[0027] Figure 8 It is a front view structure schematic diagram of the bucket wheel in the application;

[0028] Figure 9 It is a three-dimensional structure schematic diagram of the gear box in the application;

[0029] Figure 10 It is a three-dimensional structure schematic diagram of the bucket wheel protective cover in the application;

[0030] Figure 11A structure amplification diagram in the application Figure 10 A structure amplification diagram in the application

[0031] Figure 12 A structure amplification diagram in the application

[0032] Figure 13 A structure amplification diagram in the application

[0033] Figure 14 A structure amplification diagram in the application

[0034] Figure 15 A structure amplification diagram in the application

[0035] In the figure, 1, a material taking arm; 2, a machine body; 4, a material unloading device; 5, a crossbeam; 6, a rotating ring; 7, a bucket wheel; 8, a material falling hole; 9, a material scraping plate; 10, a bucket wheel protective cover; 11, a material receiving plate; 12, a material blocking plate; 13, an abutting plate; 14, a guide rail; 15, a driving rod; 16, a limiting rod; 17, a spring; 18, a limiting block; 19, a containing groove; 20, a limiting plate; 21, an inner ring groove; 22, an outer ring groove; 23, a vertical groove; 24, a notch; 25, a guard plate assembly; 26, a fixed arm; 27, a bearing seat; 28, a main shaft; 29, an inner plate; 30, a mounting plate; 31, a first motor; 32, a gear box; 33, a connecting rod; 34, a machine frame; 35, a hydraulic telescopic rod; 56, a first driving wheel; 57, a first driven wheel; 58, a first belt; 59, a second motor. DETAILED DESCRIPTION

[0036] Please refer to Figures 1-15 The application will be described in detail below in combination with the accompanying drawings and examples:

[0037] The bucket wheel assembly for the crawler-type bucket wheel loader comprises a material taking arm 1, the material taking arm 1 is used for being hinged with a frame 34, a material conveying mechanism is arranged in the material taking arm 1, and the right end of the material taking arm 1 is located above the feeding end of a discharging device 4 of a machine body 2; a rotating ring 6 is rotationally connected to the outer end of the material taking arm 1 on one side, a plurality of bucket wheels 7 are uniformly fixed on the outer surface of the rotating ring 6 along the circumference, and the circumferential surface of the rotating ring 6 is provided with a plurality of discharging holes 8 at positions corresponding to the bucket wheels 7; the interiors of the bucket wheels 7 are communicated with the corresponding discharging holes 8, and a material scraping plate 9 is slidingly arranged on the inner top wall of the bucket wheel 7; a bucket wheel protective cover 10 is fixedly arranged on the outer side of the rotating ring 6 and is fixed with the material taking arm 1, and a limiting device is fixedly arranged on the side of the bucket wheel protective cover 10; when the bucket wheel 7 rotates to the limiting device, the limiting device drives the material scraping plate 9 to move inward on the inner top wall of the bucket wheel 7, and assists the material in the bucket wheel 7 to fall; since the material scraping plate 9 assists the material to fall, the falling speed of the material is fast and the material is completely discharged when the bucket wheel 7 discharges, and the material taking efficiency of the bucket wheel 7 is improved; meanwhile, since the material scraping plate 9 assists the material to fall, the rotating speed of the rotating ring 6 can be improved on the basis of the original, and the material taking efficiency of the bucket wheel 7 is further improved.

[0038] In use, the machine body 2 is moved to a set position, the position of the material taking arm 1 is adjusted, the rotating ring 6 and the bucket wheel 7 at the left end of the material taking arm 1 are brought into contact with the material pile, the discharging end of the discharging device 4 of the machine body 2 is located above the truck hopper, then the device is started, the rotating ring 6 rotates counterclockwise, the bucket wheels 7 on the rotating ring 6 successively shovel and take the material from the material pile, the material enters the bucket wheels 7, with the rotation of the rotating ring 6, the full material bucket wheel 7 rises to the limiting device, the limiting device controls the material scraping plate 9 to slide inward from the outer side of the inner top wall of the bucket wheel 7, so that the material in the bucket wheel 7 is conveniently discharged from the bucket wheel 7 downward and falls from the discharging hole 8 of the rotating ring 6 to the material conveying mechanism of the material taking arm 1, the material taking arm 1 conveys the material to the right end through the material conveying mechanism and falls into the feeding end of the discharging device 4, the discharging device 4 conveys the material to the discharging end to discharge, so that the material falls into the truck hopper to complete the loading purpose.

[0039] In the embodiment, the upper end surface of the material taking arm 1 is fixedly provided with a material receiving plate 11, the top end of the material receiving plate 11 is obliquely extended into the interior of the rotating ring 6, and the bottom end of the material receiving plate 11 is located above the material taking arm 1; in use, the bucket wheel 7 starts to shovel and take the material from the material pile when rotating to the lower left, the material in the bucket wheel 7 falls downward from the discharging hole 8 of the rotating ring 6 to the material receiving plate 11 and slides downward along the material receiving plate 11 to the material taking arm 1 when the bucket wheel 7 moves to the upper side with the rotation of the rotating ring 6, so that the material taking arm 1 conveys the material to the feeding end of the discharging device 4 through the material conveying mechanism, and then the discharging device 4 conveys the material to the truck hopper.

[0040] In the rotary bucket 7, when the rotary bucket 7 moves to the left quadrant point of the rotary ring 6, the material in the rotary bucket 7 may roll out of the rotary bucket 7 too early, causing waste of the material and reducing the efficiency of the rotary bucket 7. In order to solve this problem, the rear side of the material taking arm 1 is fixedly provided with a material blocking plate 12, the outer surface of the material blocking plate 12 is attached to the inner side wall of the rotary ring 6, the material blocking plate 12 is located on the left side of the rotary ring 6, the top end of the material blocking plate 12 is fixedly provided with a butt joint plate 13, and the outer end of the butt joint plate 13 is fixedly provided with a receiving plate 11. In use, when the rotary bucket 7 rotates to the left side with the rotary ring 6, the material blocking plate 12 seals the material falling hole 8 of the rotary ring 6, so that the material in the rotary bucket 7 will not slide out until the rotary bucket 7 rises above the top end of the material blocking plate 12, and then the material in the rotary bucket 7 slides out of the material falling hole 8 of the rotary ring 6 and falls on the butt joint plate 13, and then slides to the receiving plate 11, and then falls from the receiving plate 11 to the material taking arm 1, thereby achieving the purpose of preventing the material in the rotary bucket 7 from sliding out too early.

[0041] In use, when the rotary bucket 7 rises above the material blocking plate 12, the rotary bucket 7 starts to drop the material, and when the rotary bucket 7 moves to the top of the rotary ring 6, the dropping of the material is completed. During this process, due to the characteristics of the material or the high speed of the rotary ring 6, the material in the rotary bucket 7 may not completely separate from the inner top wall of the rotary bucket 7, which reduces the efficiency of the material taking. In order to solve this problem, the material scraping plate 9 is arranged, so that when the rotary bucket 7 starts to drop the material, the limiting device drives the material scraping plate 9 to slide from the outside to the inside on the inner top wall of the rotary bucket 7, so that the material in the rotary bucket 7 completely separates from the inner top wall, which helps the material in the rotary bucket 7 to quickly separate and complete the dropping of the material.

[0042] In the embodiment, the inner top wall of the bucket wheel 7 is fixedly provided with a guide rail 14, a guide groove is formed in the position corresponding to the guide rail 14 of the scraping plate 9, and the scraping plate 9 is slidably connected with the bucket wheel 7 through the guide rail 14 and the guide groove; a driving rod 15 is slidably arranged in the bucket wheel 7 along the direction of the guide rail 14, the inner end of the driving rod 15 is fixedly arranged with the scraping plate 9, the outer end of the driving rod 15 extends to the outside of the bucket wheel 7 and is fixedly arranged with a limiting rod 16, and the spring 17 is sleeved on the driving rod 15 between the limiting rod 16 and the bucket wheel 7; the outer end of the spring 17 is fixedly arranged with the limiting rod 16, and the inner end of the spring 17 is fixedly arranged with the bucket wheel 7; the outer end of the guide rail 14 is fixedly arranged with a limiting block 18, and the scraping plate 9 is formed with an accommodating groove 19 corresponding to the limiting block 18; the spring 17 drives the driving rod 15 to move the scraping plate 9 to the outside of the bucket wheel 7 through the limiting rod 16, so that the limiting block 18 is located in the accommodating groove 19 of the scraping plate 9, and the scraping plate 9 is limited to continue to move outward; the spring 17 is in a stretched state and always drives the scraping plate 9 to move outward; when the bucket wheel 7 rises above the blocking plate 12 and starts to drop, the limiting device limits the limiting rod 16, so that the limiting rod 16, the driving rod 15 and the scraping plate 9 are out of synchronization with the rotation of the bucket wheel 7, thereby realizing the purpose that the scraping plate 9 slides inward in the bucket wheel 7 relative to the inner top wall of the bucket wheel 7, so that the scraping plate 9 scratches the inner side wall of the bucket wheel 7, and the material in the bucket wheel 7 is completely separated from the inner top wall.

[0043] In the embodiment, the limiting device includes a limiting plate 20 fixedly arranged with the side of the bucket wheel protective cover 10, and a limiting groove is formed in the front side of the limiting plate 20; when the bucket wheel 7 rises above the blocking plate 12 and starts to drop, the rear end of the limiting rod 16 enters the limiting groove, the limiting groove limits the limiting rod 16, so that the limiting rod 16, the driving rod 15 and the scraping plate 9 are out of synchronization with the rotation of the bucket wheel 7, thereby realizing the purpose that the scraping plate 9 slides inward in the bucket wheel 7 relative to the inner top wall of the bucket wheel 7, so that the scraping plate 9 scratches the inner top wall of the bucket wheel 7, and the material in the bucket wheel 7 is completely separated from the inner top wall.

[0044] In the embodiment, the limiting groove includes an inner ring groove 21, an outer ring groove 22 and a vertical groove 23, the top end of the vertical groove 23 communicates with the outer ring groove 22, and the bottom end of the vertical groove 23 communicates with the inner ring groove 21; the bottom end of the inner ring groove 21 communicates with a notch 24 formed on the limiting plate 20; the inner ring groove 21 and the outer ring groove 22 are concentric with the rotating ring 6; when the bucket wheel 7 rotates with the rotating ring 6, the scraping plate 9 is located outside the inner top wall of the bucket wheel 7 under the action of the spring 17 (as shown in FIG. 8), at this time, the movement track of the rear end of the limiting rod 16 coincides with the inner ring groove 21; when the scraping plate 9 is located inside the inner top wall of the bucket wheel 7 and contacts with the inner side wall of the bucket wheel 7 (as shown in FIG. 9), at this time, the movement track of the rear end of the limiting rod 16 coincides with the vertical groove 23; when the scraping plate 9 is located outside the inner top wall of the bucket wheel 7 and contacts with the outer side wall of the bucket wheel 7 (as shown in FIG. 10), at this time, the movement track of the rear end of the limiting rod 16 coincides with the outer ring groove 22. Figure 12 Figure 13 ​The rear end of the limiting rod 16 coincides with the outer ring groove 22 at this time; in use, the spring 17 always drives the scraping plate 9 to move to the outside of the bucket wheel 7, so that the limiting block 18 limits the scraping plate 9; the rear end of the limiting rod 16 coincides with the inner ring groove 21 at this time; the bucket wheel 7 rotates counterclockwise with the rotating ring 6, and the bucket wheel 7 starts to shovel and take materials when it is below the bottom and the left side, and then the bucket wheel 7 continues to rotate and rise, at which time the blocking plate 12 seals the falling hole 8 on the left side of the rotating ring 6, and the materials in the bucket wheel 7 are blocked in the bucket wheel 7; when the bucket wheel 7 rotates and rises above the blocking plate 12, the rear end of the limiting rod 16 enters the inner ring groove 21 from the notch 24, and the bucket wheel 7 continues to rotate and start to drop materials, the rear end of the limiting rod 16 enters the vertical groove 23 from the inner ring groove 21, and the bucket wheel 7 rotates, the limiting rod 16 is retained in the vertical groove 23, and drives the scraping plate 9 to move inward; the movement principle is that the rotation of the bucket wheel 7 around the center of the rotating ring 6 can be decomposed into upward movement and rightward movement; the bucket wheel 7 moves to the right, the limiting rod 16 is limited and stopped from moving to the right by the vertical groove 23, so that the limiting rod 16, the driving rod 15 and the scraping plate 9 move to the left relative to the bucket wheel 7, so that the scraping plate 9 moves from the outside of the inner top wall of the bucket wheel 7 to the inside and contacts the inner side wall of the bucket wheel 7; the bucket wheel 7 moves upward, and the limiting rod 16 moves upward in the vertical groove 23; when the scraping plate 9 moves to the left and contacts the inner side wall of the bucket wheel 7, the rear end of the limiting rod 16 enters the outer ring groove 22, at which time the bucket wheel 7 continues to rotate, and the limiting rod 16 slides in the outer ring groove 22, so that the scraping plate 9 is kept inside the bucket wheel 7; when the scraping plate 9 moves from the outside to the inside, the scraping plate 9 rubs the inner top wall of the bucket wheel 7, which is helpful for the dropping of the materials in the bucket wheel 7; the bucket wheel 7 continues to rotate, and when the rear end of the limiting rod 16 is separated from the right end of the outer ring groove 22, the spring 17 pulls the limiting rod 16 to move close to the bucket wheel 7, the limiting rod 16 drives the scraping plate 9 to move to the outside of the bucket wheel 7 through the driving rod 15, so that the limiting block 18 is located in the accommodating groove 19 of the scraping plate 9 to limit the scraping plate 9 from continuing to move to the outside, and the next material taking cycle is performed.

[0045] In the embodiment, the material taking arm 1 includes two guard plate assemblies 25, and the material conveying mechanism is arranged in the two guard plate assemblies 25. The rear side of the rear guard plate assembly 25 is fixedly provided with a fixed arm 26. The outer end of the fixed arm 26 is fixedly provided with a bearing seat 27. The inner part of the bearing seat 27 is rotationally connected with a main shaft 28. The outer surface of the main shaft 28 is fixedly provided with an inner plate 29. The outer surface of the inner plate 29 is fixedly connected with the rotating ring 6, so as to rotationally connect the rotating ring 6 with the material taking arm 1. The outer side of the fixed arm 26 is fixedly provided with a mounting plate 30. The upper end surface of the mounting plate 30 is fixedly provided with a first motor 31. The output shaft of the first motor 31 is fixedly provided with a gear box 32. The output shaft of the gear box 32 is fixedly provided with the main shaft 28. The first motor 31 drives the main shaft 28 to rotate through the gear box 32. The main shaft 28 drives the rotating ring 6 to rotate through the inner plate 29, so as to realize the rotation of the rotating ring 6. The upper end surface of the fixed arm 26 is fixedly provided with the bucket wheel protective cover 10.

[0046] In the embodiment, the guard plate assembly 25 includes two parallel arranged cross beams 5. A plurality of connecting rods 33 are fixedly arranged between the two cross beams 5, so that the two cross beams 5 are fixedly integrated. The right end of the cross beam 5 extends to above the feeding end of the discharging device 4 and is rotationally connected with a rack 34. The lower end surface of the cross beam 5 and the left side surface of the rack 34 are provided with hydraulic telescopic rods 35. The fixed end of the hydraulic telescopic rod 35 is hingedly connected with the left side surface of the rack 34. The output end of the hydraulic telescopic rod 35 is hingedly connected with the lower end surface of the two cross beams 5. The cross beam 5 is driven to rotate through the extension and retraction of the hydraulic telescopic rod 35, so that the left end of the cross beam 5 moves upward or downward, thereby realizing the adjustment of the pitch angle of the material taking arm 1, and facilitating the material taking of the bucket wheel 7 on the material pile.

[0047] In the embodiment, the material conveying mechanism includes a first driving wheel 56 rotationally connected between the left ends of the two guard plate assemblies 25 and a first driven wheel 57 rotationally connected between the right ends of the two guard plate assemblies 25. The first driving wheel 56 and the first driven wheel 57 are transmissionally connected through a first belt 58. The materials falling on the receiving plate 11 fall on the first belt 58. The left end of the front guard plate assembly 25 is fixedly provided with a second motor 59. The output shaft of the second motor 59 is fixedly provided with the first driving wheel 56. The second motor 59 drives the first driving wheel 56 to rotate. The first driving wheel 56 drives the first driven wheel 57 to rotate through the first belt 58, so that the first belt 58 conveys the materials above to the right end and falls into the discharging device 4. The discharging device 4 conveys the materials into the cargo hold of the truck, thereby realizing the loading purpose.

[0048] The working principle of the present application is: the pitch angle of the material taking arm 1 is adjusted through the telescopic adjustment of the hydraulic telescopic rod 35, so that the bucket wheel 7 is in contact with the material pile, then the first motor 31 is started, the rotating ring 6 rotates counterclockwise, the bucket wheel 7 on the rotating ring 6 successively shovels the material of the material pile, the material enters the bucket wheel 7, when the bucket wheel 7 rises above the material blocking plate 12 and starts to drop, the limiting slot limits the limiting rod 16, so that the limiting rod 16, the driving rod 15 and the material scraping plate 9 are out of synchronization with the rotation of the bucket wheel 7, and then the material scraping plate 9 slides inward in the bucket wheel 7 relative to the inner top wall of the bucket wheel 7, so that the material scraping plate 9 scratches the inner top wall of the bucket wheel 7, so that the material in the bucket wheel 7 is completely separated from the inner top wall, which helps the material in the bucket wheel 7 to quickly separate, and the dropping is completed; the material falls from the dropping hole 8 of the rotating ring 6 to the first belt 58 in the two guard plate assemblies 25, the first belt 58 conveys the material above to the unloading device 4, and the unloading device 4 conveys the material to fall into the cargo compartment of the truck to realize the purpose of loading.

Claims

1. A bucket wheel assembly for a crawler-mounted bucket wheel car loader, characterized by: The utility model provides a kind of material taking arm (1), material taking arm (1) is used to be hinged with rack (34), material taking arm (1) is provided with material conveying mechanism inside, the right end of material taking arm (1) is located on the feed end above the discharging device (4) of fuselage (2);Rotary ring (6) is rotatably connected to the outer end side of material taking arm (1), the outer surface of rotary ring (6) is uniformly fixed with a plurality of bucket wheel (7) along circumference, the circumferential surface of rotary ring (6) is opened with blanking hole (8) in the position corresponding to bucket wheel (7);The inside of bucket wheel (7) is communicated with the blanking hole (8) corresponding, the inner top wall of bucket wheel (7) is slidably provided with scraping plate (9), the outside of rotary ring (6) is provided with bucket wheel protective cover (10) fixedly arranged with material taking arm (1), the side of bucket wheel protective cover (10) is fixedly provided with limiting device, when bucket wheel (7) rotates to limiting device, limiting device drives scraping plate (9) to move inward on the inner top wall of bucket wheel (7).

2. A bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 1, characterized in that The upper end surface of the material taking arm (1) is fixedly provided with a receiving plate (11), the top end of the receiving plate (11) is inclined to extend into the rotary ring (6), and the bottom end of the receiving plate (11) is located above the material taking arm (1).

3. The bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 2, characterized in that The rear side of the material taking arm (1) is fixedly provided with a blocking plate (12), the outer surface of the blocking plate (12) is attached to the inner side wall of the rotary ring (6), the blocking plate (12) is located on the left side in the rotary ring (6), the top end of the blocking plate (12) is fixedly provided with a butt plate (13), and the outer end of the butt plate (13) is fixedly provided with the receiving plate (11).

4. The bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 3, characterized in that The inner top wall of the bucket wheel (7) is fixedly provided with a guide rail (14), the scraping plate (9) is provided with a guide groove at the position corresponding to the guide rail (14), and the scraping plate (9) is slidably connected with the bucket wheel (7) through the guide rail (14) and the guide groove; A driving rod (15) is slidably arranged in the bucket wheel (7) along the guide rail (14), the inner end of the driving rod (15) is fixedly provided with the scraping plate (9), the outer end of the driving rod (15) extends to the outside of the bucket wheel (7) and is fixedly provided with a limiting rod (16) perpendicularly, a spring (17) is sleeved on the driving rod (15) between the limiting rod (16) and the bucket wheel (7); The outer end of the spring (17) is fixedly provided with the limiting rod (16), and the inner end of the spring (17) is fixedly provided with the bucket wheel (7); The outer end of the guide rail (14) is fixedly provided with a limiting block (18), and the scraping plate (9) is provided with a receiving groove (19) at the position corresponding to the limiting block (18); The spring (17) is in a stretched state, and always drives the scraping plate (9) to move outward.

5. The bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 4, characterized in that The limiting device comprises a limiting plate (20) fixedly provided on the side of the bucket wheel protective cover (10), and a limiting groove is formed in the front side of the limiting plate (20).

6. The bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 5, characterized in that The limiting slot comprises an inner ring slot (21), an outer ring slot (22) and a vertical slot (23), the top end of the vertical slot (23) is communicated with the outer ring slot (22), the bottom end of the vertical slot (23) is communicated with the inner ring slot (21), the bottom end of the inner ring slot (21) is communicated with the notch (24) arranged on the limiting plate (20), the inner ring slot (21) and the outer ring slot (22) are concentric with the rotating ring (6), when the scraping plate (9) is on the outside of the inner top wall of the bucket wheel (7) under the action of the spring (17), the movement track of the rear end of the limiting rod (16) is coincided with the inner ring slot (21), when the scraping plate (9) is on the inside of the inner top wall of the bucket wheel (7) and is contacted with the inner side wall of the bucket wheel (7), the movement track of the rear end of the limiting rod (16) is coincided with the outer ring slot (22).

7. The bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 1, characterized in that: The material taking arm (1) comprises two guard plate assemblies (25), the material conveying mechanism is arranged in the two guard plate assemblies (25), the rear side of the rear guard plate assembly (25) is fixedly provided with a fixed arm (26), the outer end of the fixed arm (26) is fixedly provided with a bearing seat (27), the inner part of the bearing seat (27) is rotationally connected with a main shaft (28), the outer surface of the main shaft (28) is fixedly provided with an inner plate (29), the outer surface of the inner plate (29) is fixedly connected with the rotating ring (6); the outer side of the fixed arm (26) is fixedly provided with a mounting plate (30), the upper end surface of the mounting plate (30) is fixedly provided with a first motor (31), the output shaft of the first motor (31) is fixedly provided with an input shaft of a gear box (32), the output shaft of the gear box (32) is fixedly provided with the main shaft (28).

8. The bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 7, characterized in that The guard plate assembly (25) comprises two cross beams (5) arranged in parallel, a plurality of connecting rods (33) are fixedly arranged between the two cross beams (5), so that the two cross beams (5) are fixedly integrated; the right end of the cross beam (5) extends to above the feeding end of the discharging device (4) and is rotationally connected with a rack (34); the lower end surface of the cross beam (5) and the left side surface of the rack (34) are provided with hydraulic telescopic rods (35), the fixed ends of the hydraulic telescopic rods (35) are hingedly connected with the left side surface of the rack (34), and the output ends of the hydraulic telescopic rods (35) are hingedly connected with the lower end surfaces of the two cross beams (5).

9. The bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 7, characterized in that: The material conveying mechanism comprises a first driving wheel (56) rotationally connected between the left ends of the two guard plate assemblies (25) and a first driven wheel (57) rotationally connected between the right ends of the two guard plate assemblies (25), the first driving wheel (56) and the first driven wheel (57) are drivingly connected through a first belt (58).

10. The bucket wheel assembly for a crawler-mounted bucket wheel car loader according to claim 9, characterized in that The left end of the front guard plate assembly (25) is fixedly provided with a second motor (59), and the output shaft of the second motor (59) is fixedly provided with the first driving wheel (56).

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