A crawler bucket wheel loader

Abstract

The present invention discloses a crawler type bucket wheel loader, which belongs to the technical field of loader, and comprises a traveling mechanism, wherein the upper end surface of the traveling mechanism is rotatably connected with a slewing platform, and the slewing platform comprises a horizontal plate and a bracket, wherein the bracket is fixedly arranged on the upper end surface of the horizontal plate, and the upper end surface of the horizontal plate is hinged with a discharge arm, and a picking arm is hinged in the bracket, and the right end of the picking arm is located above the left end of the discharge arm; a first feeding mechanism is arranged in the picking arm, and a second feeding mechanism is arranged in the discharge arm. When the present invention is used, when the bucket wheel picks up materials and rotates to drop materials from the upper part, the limiting device drives the scraper plate to move inward on the inner top wall of the bucket wheel, and assists the materials in the bucket wheel to drop. Since the scraper plate assists the dropping of materials, the dropping speed of the bucket wheel is fast and the dropping of materials is thorough, which improves the material picking efficiency of the bucket wheel; at the same time, since the scraper plate assists the dropping of materials, the rotation speed of the rotating ring can be increased on the original basis, which further improves the material picking efficiency of the bucket wheel.

Description

Technical Field

[0001] The invention relates to a loader, in particular to a crawler type bucket wheel loader. Background Art

[0002] Bucket wheel loader refers to a device that can realize continuous shoveling and conveying of materials. It is mainly composed of bucket wheel rotating ring, belt conveyor, walking mechanism and power equipment. 6-8 bucket wheels are installed on the bucket wheel rotating ring. The walking chassis is tire-type single-bridge drive or crawler type.

[0003] When working, the existing bucket wheel rotating ring continuously rotates counterclockwise to drive the bucket wheel to shovel and take materials from the material pile in sequence. When the bucket wheel for taking materials rotates to the upper fan-shaped area, the materials in the bucket wheel fall down onto the belt conveyor device, and are transported by the belt conveyor device to the cargo bucket of the truck to complete the purpose of loading. When the existing bucket wheel drops materials, due to the characteristics of the materials or the high rotation speed of the bucket wheel rotating ring, the materials in the bucket wheel often remain, resulting in a decrease in the efficiency of the bucket wheel shoveling materials.

[0004] After searching, the patent announcement number is: CN215885607U, which provides a bucket wheel loader, including a bucket wheel body frame, a bucket wheel boom and a bucket wheel are installed on the bucket wheel body frame, the bucket wheel is installed at the end of the bucket wheel boom away from the bucket wheel body frame, and a collecting bin is also arranged between the bucket wheel and the bucket wheel boom, and a main oil cylinder is also arranged between the bucket wheel boom and the bucket wheel body frame; a telescopic boom is also installed on the bucket wheel body frame, a conveyor belt and a transfer bin arranged on the telescopic boom, and the transfer bin is located directly below the end of the bucket wheel boom; a feed port is opened on the top of the transfer bin, and a vertical plate vertically downward is arranged at the feed port, an outlet is opened on the side wall of the transfer bin, and one end of the conveyor belt is just located inside the transfer bin.

[0005] The above scheme uses several bucket wheels to rotate around the geometric center to pick up materials from the material pile. During operation, due to the characteristics of the materials or the high rotation speed of the bucket wheel rotating ring, the materials in the bucket wheel may not be completely dropped, which leads to a decrease in the efficiency of the bucket wheel shoveling materials. In order to solve the problem of incomplete dropping of materials, the existing bucket wheel has a hole on the top surface of the bucket wheel, and several chains are arranged in the hole. When the bucket wheel is used to shovel materials, the materials are caught by the chain. When the bucket wheel rotates to the top, the chain will droop to assist in dropping the materials. However, when this method is used, a large amount of materials will leak out from between the chains, which also reduces the efficiency of the bucket wheel. At the same time, the use of the chain increases the manufacturing cost of the bucket wheel. Summary of the invention

[0006] The purpose of the present invention is to provide a crawler bucket wheel loader, which has the advantages of fast bucket wheel material dropping speed and complete material dropping, and effectively solves the problem of incomplete material dropping caused by excessively fast bucket wheel rotation speed or material characteristics in the prior art.

[0007] The present invention adopts the following technical scheme: a crawler-type bucket wheel loader, comprising a walking mechanism, the upper end surface of the walking mechanism is rotatably connected with a slewing platform, the slewing platform comprises a horizontal plate and a bracket, the bracket is fixedly arranged on the upper end surface of the horizontal plate, the upper end surface of the horizontal plate is hinged with a discharge arm, a pick-up arm is hinged in the bracket, and the right end of the pick-up arm is located above the left end of the discharge arm; a first feeding mechanism is arranged in the pick-up arm, and a second feeding mechanism is arranged in the discharge arm; a discharge arm pitching mechanism is arranged between the upper end surface of the discharge arm and the bracket, and the left side surface of the horizontal plate and the pick-up arm are hinged. A feeding arm pitching mechanism is arranged in the middle; a rotating ring is rotatably connected to one side of the outer end of the feeding arm, and a plurality of bucket wheels are evenly and fixedly arranged along the circumference of the outer surface of the rotating ring, and blanking holes are opened at the positions corresponding to the bucket wheels on the circumferential surface of the rotating ring; the interiors of the bucket wheels are connected with the corresponding blanking holes, and a scraper plate is slidably arranged on the inner top wall of the bucket wheel, and a bucket wheel protective cover fixedly arranged with the feeding arm is arranged on the outer side of the rotating ring, and a limiting device is fixedly arranged on the side of the bucket wheel protective cover, and when the bucket wheel rotates to the limiting device, the limiting device drives the scraper plate to move inward on the inner top wall of the bucket wheel.

[0008] Furthermore, a material receiving plate is fixedly provided on the upper end surface of the material picking arm, the top end of the material receiving plate extends obliquely to the inside of the rotating ring, and the bottom end of the material receiving plate is located above the material picking arm.

[0009] Furthermore, a material baffle plate is fixedly provided on the rear side of the material picking arm, the outer surface of the material baffle plate is in contact with the inner wall of the rotating ring, the material baffle plate is located on the left side of the rotating ring, a docking plate is fixedly provided on the top of the material baffle plate, and the outer end of the docking plate is fixedly provided on the material receiving plate.

[0010] Furthermore, a guide rail is fixedly provided on the inner top wall of the bucket wheel, a guide groove is provided at the position corresponding to the guide rail of the scraper plate, and the scraper plate is slidably connected to the bucket wheel through the guide rail and the guide groove; a driving rod is slidably provided in the bucket wheel along the direction of the guide rail, the inner end of the driving rod is fixedly provided with the scraper plate, the outer end of the driving rod extends to the outside of the bucket wheel and a limiting rod is vertically fixedly provided, and 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, and the inner end of the spring is fixedly provided with the bucket wheel; a limiting block is fixedly provided at the outer end of the guide rail, and a accommodating groove is provided at the position corresponding to the scraper plate and the limiting block; the spring is in a stretched state, and always drives the scraper plate to move outward.

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

[0012] Furthermore, the limit groove includes an inner ring groove, an outer ring groove and a vertical groove, the top end of the vertical groove is connected to the outer ring groove, and the bottom end of the vertical groove is connected to the inner ring groove; the bottom end of the inner ring groove is connected to the notch opened on the limit plate; the inner ring groove and the outer ring groove are concentric with the rotating ring; when the scraper plate is on the outer side of the inner top wall of the bucket wheel under the action of the spring, the movement trajectory of the rear end of the limit rod coincides with the inner ring groove; when the scraper plate is located on the inner side of the inner top wall of the bucket wheel and contacts with the inner side wall of the bucket wheel, the movement trajectory of the rear end of the limit rod coincides with the outer ring groove.

[0013] Furthermore, the material picking arm includes two guard plate assemblies, the first material feeding mechanism is arranged in the two guard plate assemblies, a fixed arm is fixedly provided on the rear side surface of the rear guard plate assembly, a bearing seat is fixedly provided on the outer end of the fixed arm, a main shaft is rotatably connected inside the bearing seat, an inner plate is fixedly provided on the outer surface of the main shaft, and the outer surface of the inner plate is fixedly connected to the rotating ring; a mounting plate is fixedly provided on the outer side surface of the fixed arm, a first motor is fixedly provided on the upper end surface of the mounting plate, the output shaft of the first motor is fixedly provided on the input shaft of the gear box, and the output shaft of the gear box is fixedly provided on the main shaft.

[0014] Furthermore, a material drop cover is fixedly provided on the right side of the bracket, and the left side of the material drop cover is open. A material drop cup is fixedly provided on the bottom end of the material drop cover, and the material drop cup is located above the left end of the unloading arm; the right end of the guard plate assembly extends into the material drop cover and is rotatably connected to the material drop cover, and the pitch mechanism of the material picking arm includes a first hydraulic telescopic rod arranged between the lower end surface of the guard plate assembly and the horizontal plate, the fixed end of the first hydraulic telescopic rod is hinged to the left side surface of the horizontal plate, and the output ends of the first hydraulic telescopic rod are hinged to the lower end surfaces of the two guard plate assemblies.

[0015] Furthermore, the unloading arm includes two side plate assemblies, the second feeding mechanism is arranged in the two side plate assemblies, the lower end surfaces of the two side plate assemblies are provided with fixed blocks fixed to the two side plate assemblies, the bottom end of the fixed block is hinged with a first gear through a first hinge shaft, and the first hinge shaft is arranged along the front and rear direction; the lower end surface of the first gear is fixedly provided with a first vertical shaft, and the first vertical shaft is rotatably connected to the horizontal plate; a second motor is fixedly provided on the horizontal plate, and a second gear is fixedly provided on the output shaft of the second motor, and the second gear is meshed with the first gear.

[0016] Furthermore, two mounting blocks are fixedly provided on the upper end surface of each side panel assembly, a tension rod is hinged in each mounting block, a support block is fixedly provided on the right side surface of the bracket, an articulated block is hinged to the inside of the support block via a second articulated shaft, a second hydraulic telescopic rod is hinged to the outer surface of the articulated block via a third articulated shaft, the second articulated shaft is arranged in the vertical direction, the third articulated shaft is arranged in the front-to-back direction, a triangular block is hinged to the output end of the second hydraulic telescopic rod, a connecting block is hinged to the right end of the triangular block, the right side surfaces of the connecting blocks are fixedly connected to the two tension rods on the right side, and the front and rear side surfaces of the triangular block are respectively fixed to the corresponding tension rods on the left side.

[0017] 1. The present invention provides a limit device and a scraper plate. When the device is used, after the bucket wheel picks up materials, when the upper part rotates to drop materials, the limit device drives the scraper plate to move inward on the inner top wall of the bucket wheel, thereby assisting the materials in the bucket wheel to drop. Since the scraper plate assists in dropping materials, the bucket wheel drops materials at a fast speed and drops materials thoroughly, thereby improving the bucket wheel's material picking efficiency. At the same time, since the scraper plate assists in dropping materials, the rotation speed of the rotating ring can be increased on the original basis, thereby further improving the bucket wheel's material picking efficiency.

[0018] Furthermore, the present invention provides a limit plate, an inner ring groove, an outer ring groove, a vertical groove, a scraper plate, a drive rod, a limit rod and a spring. When the device is in use, the bucket wheel rotates counterclockwise with the rotating ring, and the bucket wheel starts to shovel and pick up materials when it is at the bottom and the lower left side. When the bucket wheel rotates and rises to above the material baffle plate, the rear end of the limit rod enters the inner ring groove from the notch, and the bucket wheel continues to rotate to start material dropping. The rear end of the limit rod enters the vertical groove from the inner ring groove, and the bucket wheel rotates, and the limit rod is retained in the vertical groove, causing the limit rod, the drive rod and the scraper plate to move to the left relative to the bucket wheel, so that the scraper plate moves from the outer side of the inner top wall of the bucket wheel to the left to the inside and contacts the inner side wall of the bucket wheel, so that the scraper plate scrapes the inner bottom wall of the bucket wheel when the bucket wheel drops materials, thereby assisting the bucket wheel in dropping materials.

[0019] 2. The present invention arranges a side panel assembly, a tension rod, a second hydraulic telescopic rod and a triangular block. When the second hydraulic telescopic rod is extended or retracted, the second hydraulic telescopic rod drives the two side panel assemblies to rotate around the first hinge axis through the triangular block and the tension rod, thereby achieving the purpose of adjusting the pitch angle of the right end of the unloading arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 It is a front view structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the bracket in the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the blanking cup in the present invention;

[0024] Figure 5 This is a schematic diagram of the front view structure of the bracket in the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the guard plate assembly in the present invention;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the material receiving plate in the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the main shaft in the present invention;

[0028] Fig. 9 It is a front view structural diagram of the bucket wheel in the present invention;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the gear box in the present invention;

[0030] Fig.11 It is a schematic diagram of the three-dimensional structure of the bucket wheel protective cover in the present invention;

[0031] Fig.12 For the present invention Fig.11 A schematic diagram of the structure enlargement at point A;

[0032] Fig.13 It is a three-dimensional structural schematic diagram of the scraper plate in the present invention being located outside the inner top wall of the bucket wheel;

[0033] Fig.14 It is a three-dimensional structural schematic diagram of the scraper plate in the present invention being located on the inner side of the inner top wall of the bucket wheel;

[0034] Fig.15 It is a schematic diagram of the three-dimensional structure of the limiting plate in the present invention;

[0035] Fig.16 It is a front view structural schematic diagram of the limiting plate in the present invention;

[0036] Fig.17 It is a schematic diagram of the three-dimensional structure of the side panel assembly in the present invention;

[0037] Fig.18 It is a front view structural schematic diagram of the side panel assembly in the present invention;

[0038] Fig.19 It is a schematic diagram of the three-dimensional structure of the horizontal plate in the present invention;

[0039] Fig. 20 It is a schematic diagram of the internal three-dimensional structure of the horizontal plate in the present invention.

[0040] In the figure, 1, walking mechanism; 2, horizontal plate; 3, bracket; 4, unloading arm; 5, picking arm; 6, rotating ring; 7, bucket wheel; 8, drop hole; 9, scraper plate; 10, bucket wheel protective cover; 11, receiving plate; 12, baffle plate; 13, docking plate; 14, guide rail; 15, driving rod; 16, limit rod; 17, spring; 18, limit block; 19, accommodating groove; 20, limit plate; 21, inner ring groove; 22, outer ring groove; 23, vertical groove; 24, notch; 25, guard plate assembly; 26, fixed arm; 27, bearing seat; 28, main shaft; 29, inner plate; 30, mounting plate; 31, first motor; 32, gear box; 33, drop cover; 34, drop cup; 35, first hydraulic telescopic rod; 36, side plate assembly Components; 37, fixed block; 38, first articulated shaft; 39, first gear; 40, first vertical shaft; 41, second motor; 42, second gear; 43, mounting block; 44, tension rod; 45, support block; 46, second articulated shaft; 47, articulated block; 48, third articulated shaft; 49, second hydraulic telescopic rod; 50, triangular block; 51, connecting block; 52, second vertical shaft; 53, third gear; 54, third motor; 55, fourth gear; 56, first driving wheel; 57, first driven wheel; 58, first belt; 59, fourth motor; 60, second driving wheel; 61, second driven wheel; 62, second belt; 63, fifth motor; 64, vehicle body; 65, track assembly; 66, counterweight; 67, pin. DETAILED DESCRIPTION

[0041] See also Figure 1-20 The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0042] The crawler bucket wheel loader described in the present invention comprises a walking mechanism 1, the upper end face of the walking mechanism 1 is rotatably connected with a revolving platform, the revolving platform comprises a horizontal plate 2 and a bracket 3, the bracket 3 is fixedly arranged on the upper end face of the horizontal plate 2, the upper end face of the horizontal plate 2 is hinged with a discharge arm 4, a picking arm 5 is hinged in the bracket 3, the right end of the picking arm 5 is located above the left end of the discharge arm 4; a first feeding mechanism is arranged in the picking arm 5, and a second feeding mechanism is arranged in the picking arm 4; a discharge arm pitching mechanism is arranged between the upper end face of the discharge arm 4 and the bracket 3, and a pick arm pitching mechanism is arranged between the left side face of the horizontal plate 2 and the picking arm 5; one side of the outer end of the picking arm 5 is rotatably connected with a rotating ring 6, and a plurality of bucket wheels 7 are evenly and fixedly arranged on the outer surface of the rotating ring 6 along the circumference, rotating A material dropping hole 8 is provided on the circumferential surface of the rotating ring 6 at a position corresponding to the bucket wheel 7; the interior of the bucket wheel 7 is connected to the corresponding material dropping hole 8, a scraper plate 9 is slidably provided on the inner top wall of the bucket wheel 7, a bucket wheel protective cover 10 fixedly provided with the material taking arm 5 is provided on the outer side of the rotating ring 6, and a limiting device is fixedly provided 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 scraper plate 9 to move inward on the inner top wall of the bucket wheel 7 to assist the material in the bucket wheel 7 to fall. Since the scraper plate 9 assists in material dropping, the bucket wheel 7 drops the material quickly and thoroughly, thereby improving the material taking efficiency of the bucket wheel 7; at the same time, since the scraper plate 9 assists in material dropping, the rotation speed of the rotating ring 6 can be increased on the original basis, thereby further improving the material taking efficiency of the bucket wheel 7.

[0043] When in use, the walking mechanism 1 moves to the material taking location, and the pitch angle of the material taking arm 5 is adjusted by the material taking arm pitch mechanism so that the bucket wheel 7 contacts the material pile, and the pitch angle of the discharge arm 4 is adjusted by the discharge arm pitch mechanism so that the outer end of the discharge arm 4 is located above the truck cargo bucket, and then it is started, and the rotating ring 6 rotates counterclockwise so that the bucket wheel 7 on the rotating ring 6 shovels and takes materials from the material pile in turn, and the materials enter the bucket wheel 7. As the rotating ring 6 rotates, the bucket wheel 7 filled with materials rises to the limit device, and the limit device controls the scraper plate 9 to slide inward from the outer side of the inner top wall of the bucket wheel 7, so that the materials in the bucket wheel 7 are easy to fall downward from the bucket wheel 7 and fall from the drop hole 8 of the rotating ring 6 onto the material taking arm 5, and the material taking arm 5 transports the materials to the discharge arm 4 through the first feeding mechanism, and the discharge arm 4 transports the materials to the cargo bucket of the truck through the second feeding mechanism, thereby completing the purpose of loading.

[0044] In this embodiment, a receiving plate 11 is fixedly provided on the upper end surface of the picking arm 5, and the top end of the receiving plate 11 extends obliquely to the inside of the rotating ring 6, and the bottom end of the receiving plate 11 is located above the picking arm 5; when in use, when the bucket wheel 7 picks up materials and moves upward with the rotating ring 6, the material in the bucket wheel 7 falls downward by gravity, falls from the dropping hole 8 of the rotating ring 6 to the receiving plate 11, and slides downward along the receiving plate 11 to the picking arm 5, so that the picking arm 5 transports the material to the unloading arm 4 through the first feeding mechanism, and the unloading arm 4 transports the material to the cargo box of the truck through the second feeding mechanism.

[0045] When the bucket wheel 7 rotates to take materials, when the bucket wheel 7 moves to the left quadrant point of the rotating ring 6, the materials in the bucket wheel 7 may roll out of the bucket wheel 7 prematurely, causing the material to be thrown away and wasted, reducing the efficiency of the bucket wheel 7 to take materials. In order to solve this problem, in this embodiment, a baffle plate 12 is fixedly provided on the rear side of the taking arm 5, and the outer surface of the baffle plate 12 is in contact with the inner side wall of the rotating ring 6. The baffle plate 12 is located on the left side of the rotating ring 6. A docking plate 13 is fixedly provided on the top of the baffle plate 12. The outer end of the docking plate 13 is fixed to the receiving plate 11. Fixed setting; when in use, when the bucket wheel 7 rotates with the rotating ring 6 to shovel material, the bucket wheel 7 for material collection rotates to the left side, at this time, the baffle plate 12 seals the drop hole 8 of the rotating ring 6, and the material in the bucket wheel 7 will not slide out until the bucket wheel 7 for material collection follows the rotating ring 6 to rise above the top of the baffle plate 12, and the material in the bucket wheel 7 slides out from the drop hole 8 of the rotating ring 6 to the docking plate 13, and then slides to the receiving plate 11, and then slides down from the receiving plate 11 to the material collection arm 5, thereby achieving the purpose of preventing the material in the bucket wheel 7 for material collection from sliding out prematurely.

[0046] During use, when the bucket wheel 7 rises to above the baffle plate 12, the bucket wheel 7 starts to drop materials. When the bucket wheel 7 moves to just above the rotating ring 6, the dropping of materials is completed. During this process, due to the characteristics of the materials, the materials in the bucket wheel 7 may not be completely separated and may stick to the inner top wall of the bucket wheel 7, thereby reducing the efficiency of material removal. In order to solve this problem, a scraper plate 9 is provided so that when the bucket wheel 7 starts to drop materials, the limit device drives the scraper plate 9 to slide on the inner top wall of the bucket wheel 7 from the outside to the inside, so that the materials in the bucket wheel 7 are completely separated from the inner top wall, which helps the materials in the bucket wheel 7 to quickly separate and complete the dropping of materials.

[0047] In this embodiment, a guide rail 14 is fixedly provided on the inner top wall of the bucket wheel 7, a guide groove is provided at a position corresponding to the guide rail 14 of the scraper plate 9, and the scraper plate 9 is slidably connected to the bucket wheel 7 through the guide rail 14 and the guide groove; a driving rod 15 is slidably provided in the bucket wheel 7 along the direction of the guide rail 14, the inner end of the driving rod 15 is fixedly provided with the scraper plate 9, the outer end of the driving rod 15 extends to the outside of the bucket wheel 7 and a limiting rod 16 is vertically fixedly provided, and 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; a limiting block 18 is fixedly provided at the outer end of the guide rail 14, and a accommodating block 18 is provided at a position corresponding to the scraper plate 9 and the limiting block 18. Slot 19; the spring 17 pulls the driving rod 15 through the limiting rod 16 to drive the scraper plate 9 to move toward the outside of the bucket wheel 7, so that the limiting block 18 is located in the accommodating groove 19 of the scraper plate 9, limiting the scraper plate 9 from continuing to move outward; the spring 17 is in a stretched state and always drives the scraper plate 9 to move outward; when in use, when the bucket wheel 7 rises above the baffle plate 12 and starts to drop materials, the limiting device limits the limiting rod 16, so that the limiting rod 16, the driving rod 15 and the scraper plate 9 are not synchronized with the rotation of the bucket wheel 7, thereby achieving the purpose of the scraper plate 9 sliding inward relative to the inner top wall of the bucket wheel 7, so that the scraper plate 9 scratches the inner side wall of the bucket wheel 7, so that the material in the bucket wheel 7 is completely separated from the inner top wall.

[0048] In this embodiment, the limiting device includes a limiting plate 20 fixedly arranged on the side of the bucket wheel protective cover 10, and a limiting groove is provided on the front side of the limiting plate 20. When the bucket wheel 7 rises above the material baffle plate 12 and starts to drop materials, 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 scraper plate 9 are not rotated synchronously with the bucket wheel 7, thereby realizing the scraper plate 9 sliding inward relative to the inner top wall of the bucket wheel 7, so that the scraper 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.

[0049] In this embodiment, the limiting groove includes an inner ring groove 21, an outer ring groove 22 and a vertical groove 23. The top of the vertical groove 23 is connected to the outer ring groove 22, and the bottom of the vertical groove 23 is connected to the inner ring groove 21; the bottom of the inner ring groove 21 is connected to the notch 24 provided 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 scraper plate 9 is located on the outer side of the inner top wall of the bucket wheel 7 (such as Fig.13 As shown), the motion trajectory of the rear end of the limit rod 16 coincides with the inner ring groove 21; when the scraper plate 9 is located on the inner side of the inner top wall of the bucket wheel 7 and contacts the inner side wall of the bucket wheel 7 (as shown Fig.14As shown in the figure, the movement trajectory of the rear end of the limiting rod 16 coincides with the outer ring groove 22; when in use, the spring 17 always drives the scraper plate 9 to move to the outside of the bucket wheel 7, so that the limiting block 18 limits the scraper plate 9; the movement trajectory of the rear end of the limiting rod 16 coincides with the inner ring groove 21; 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 at the bottom and the lower left side, and then the bucket wheel 7 that takes materials continues to rotate and rise, at this time the baffle plate 12 seals the drop hole 8 on the left side of the rotating ring 6, and the material in the bucket wheel 7 is blocked in the bucket wheel 7. When the wheel 7 rotates and rises above the baffle plate 12, the rear end of the limit rod 16 enters the inner ring groove 21 from the notch 24, the bucket wheel 7 continues to rotate and starts to drop materials, and the rear end of the limit rod 16 enters the vertical groove 23 from the inner ring groove 21. The bucket wheel 7 rotates, and the limit rod 16 is retained in the vertical groove 23. The movement principle is: 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, and the limit rod 16 is limited by the vertical groove 23 and stops moving to the right, causing the limit rod 16, the drive rod 15 and the scraper plate 9 to move to the left relative to the bucket wheel 7. The scraper plate 9 moves from the outer side of the inner top wall of the bucket wheel 7 to the left to the inner side and contacts the inner side wall of the bucket wheel 7; the bucket wheel 7 moves upward, and the limit rod 16 moves upward in the vertical groove 23; when the scraper plate 9 moves to the left to the inner side and contacts the inner side wall of the bucket wheel 7, the rear end of the limit rod 16 enters the outer ring groove 22, and the bucket wheel 7 continues to rotate. The limit rod 16 will slide in the outer ring groove 22, so that the scraper plate 9 remains on the inner side of the bucket wheel 7; when the scraper plate 9 moves from the outside to the inside, the scraper plate 9 scrapes the inner top wall of the bucket wheel 7, which helps the material in the bucket wheel 7 to fall. The bucket wheel 7 continues to rotate, and when the rear end of the limit rod 16 disengages from the right end of the outer ring groove 22, the spring 17 pulls the limit rod 16 to move closer to the bucket wheel 7, and the limit rod 16 drives the scraper plate 9 to move toward the outside of the bucket wheel 7 through the driving rod 15, so that the limit block 18 is located in the receiving groove 19 of the scraper plate 9 to limit the scraper plate 9 from continuing to move outward. The scraper plate 9 moves outward under the pull of the spring 17, and the scraper plate 9 will hit the limit block 18 through the receiving groove 19, causing the bucket wheel 7 to vibrate, which helps the material remaining on the inner wall of the bucket wheel 7 to fall off, and then the next material taking cycle is carried out.

[0050] In this embodiment, the material picking arm 5 includes two guard plate assemblies 25, and the first feeding mechanism is arranged in the two guard plate assemblies 25. A fixed arm 26 is fixedly arranged on the rear side surface of the rear guard plate assembly 25, and a bearing seat 27 is fixedly arranged on the outer end of the fixed arm 26. The inner part of the bearing seat 27 is rotatably connected with a main shaft 28, and an inner plate 29 is fixedly arranged on the outer surface of the main shaft 28. The outer surface of the inner plate 29 is fixedly connected to the rotating ring 6, so as to achieve the purpose of rotatably connecting the rotating ring 6 with the material picking arm 5; a mounting plate 30 is fixedly arranged on the outer side surface of the fixed arm 26, and a first motor 31 is fixedly arranged on the upper end surface of the mounting plate 30, and the output shaft of the first motor 31 is fixedly arranged with the input shaft of the gear box 32, and the output shaft of the gear box 32 is fixedly arranged with the main shaft 28, and the first motor 31 drives the main shaft 28 to rotate through the gear box 32, and the main shaft 28 drives the rotating ring 6 to rotate through the inner plate 29, so as to achieve the purpose of rotating the rotating ring 6; the upper end surface of the fixed arm 26 is fixedly arranged with the bucket wheel protective cover 10.

[0051] In this embodiment, a material drop cover 33 is fixedly provided on the right side of the bracket 3, and the left side of the material drop cover 33 is open. A material drop cup 34 is fixedly provided on the bottom end of the material drop cover 33, and the material drop cup 34 is located above the left end of the discharge arm 4; the right end of the guard plate assembly 25 extends into the material drop cover 33 and is hinged to the material drop cover 33 through a pin 67, and the pitch mechanism of the material picking arm includes a first hydraulic telescopic rod 35 arranged between the lower end surface of the guard plate assembly 25 and the horizontal plate 2, and the fixed end of the first hydraulic telescopic rod 35 is hinged to the left side surface of the horizontal plate 2, and the output ends of the first hydraulic telescopic rod 35 are hinged to the lower end surfaces of the two guard plate assemblies 25; the guard plate assembly 25 is driven to rotate around the pin 67 by the telescopic movement of the first hydraulic telescopic rod 35, so that the left end of the guard plate assembly 25 moves upward or downward, thereby achieving the purpose of adjusting the pitch angle of the material picking arm 5, which is convenient for the bucket wheel 7 to pick up materials from the material pile.

[0052] In this embodiment, the unloading arm 4 includes two side plate assemblies 36, and the second feeding mechanism is arranged in the two side plate assemblies 36. The lower end surfaces of the two side plate assemblies 36 are provided with fixed blocks 37 fixed to the two side plate assemblies 36. The bottom end of the fixed block 37 is hinged with a first gear 39 through a first hinge shaft 38, and the first hinge shaft 38 is arranged along the front and rear direction; the lower end surface of the first gear 39 is fixedly provided with a first vertical shaft 40, and the first vertical shaft 40 is rotatably connected to the horizontal plate 2; a second motor 41 is fixedly provided on the horizontal plate 2, and a second gear 42 is fixedly provided on the output shaft of the second motor 41, and the second gear 42 is meshed with the first gear 39; the second motor 41 drives the first gear 39 to rotate through the second gear 42, so that the first gear 39 drives the two side plate assemblies 36 to rotate in the horizontal direction, thereby achieving the purpose of driving the unloading arm 4 to rotate horizontally.

[0053] In this embodiment, the unloading arm pitch mechanism includes two mounting blocks 43 fixedly arranged on the upper end surface of each side plate assembly 36, each mounting block 43 is hinged with a tension rod 44, a support block 45 is fixedly arranged on the right side surface of the bracket 3, the interior of the support block 45 is hinged with a hinge block 47 through a second hinge shaft 46, and the outer surface of the hinge block 47 is hinged with a second hydraulic telescopic rod 49 through a third hinge shaft 48. The second hinge shaft 46 is arranged in the vertical direction, and the third hinge shaft 48 is arranged in the front-to-back direction. The output end of the second hydraulic telescopic rod 49 is hinged with a triangular block 50, and the right end of the triangular block 50 is hinged with a connecting block 51, which is connected The right side surfaces of the blocks 51 are fixedly connected to the two tension rods 44 on the right side, and the front and rear side surfaces of the triangular block 50 are respectively fixedly arranged with the corresponding tension rods 44 on the left side; when the second motor 41 drives the unloading arm 4 to rotate horizontally, the two side panel assemblies 36 drive the articulated block 47 to rotate horizontally around the second articulated axis 46 in turn through the tension rods 44, the triangular block 50 and the second hydraulic telescopic rod 49; when the second hydraulic telescopic rod 49 is extended or retracted, the second hydraulic telescopic rod 49 drives the two side panel assemblies 36 to rotate around the first articulated axis 38 through the triangular block 50 and the tension rod 44, thereby achieving the purpose of adjusting the pitch angle of the right end of the unloading arm 4.

[0054] In this embodiment, the lower end surface of the horizontal plate 2 is rotatably connected to the second vertical shaft 52, the bottom end of the second vertical shaft 52 is fixedly connected to the walking mechanism 1, the outer surface of the second vertical shaft 52 is fixedly provided with a third gear 53, the upper end surface of the horizontal plate 2 is fixedly provided with a third motor 54, the output shaft of the third motor 54 extends downward to the bottom of the horizontal plate 2 and is fixedly provided with a fourth gear 55, the fourth gear 55 is meshed with the third gear 53, and the third motor 54 is started to drive the fourth gear 55 to rotate, the fourth gear 55 rotates around the third gear 53, and then drives the horizontal plate 2 to rotate, thereby achieving the purpose of driving the bracket 3 to rotate; the rotation of the bracket 3 drives the feeding arm 5 to rotate horizontally, so that the left end of the feeding arm 5 drives the rotating ring 6 and the bucket wheel 7 to swing left and right, and the bucket wheel 7 takes materials piled in the set horizontal fan-shaped area.

[0055] In this embodiment, the first feeding mechanism includes a first driving wheel 56 rotatably connected between the left ends of the two guard plate assemblies 25 and a first driven wheel 57 rotatably connected between the right ends of the two guard plate assemblies 25. The first driving wheel 56 and the first driven wheel 57 are connected by a first belt 58. The material sliding down from the receiving plate 11 falls on the first belt 58. A fourth motor 59 is fixedly arranged at the left end of the front guard plate assembly 25. The output shaft of the fourth motor 59 is fixedly arranged with the first driving wheel 56. The fourth 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 transports the material above to the drop cover 33 at the right end, and then falls from the drop cup 34 to the second feeding mechanism of the discharge arm 4 below. The second feeding mechanism transports the material to the right end and falls into the cargo box of the truck to achieve the purpose of loading.

[0056] In this embodiment, the second feeding mechanism includes a second driving wheel 60 rotatably connected to the left ends of the two side plate assemblies 36 and a second driven wheel 61 rotatably connected to the right ends of the two side plate assemblies 36. The second driving wheel 60 and the second driven wheel 61 are connected by a second belt 62. The material falling from the drop cup 34 falls on the second belt 62. A fifth motor 63 is fixedly arranged at the left end of the front side plate assembly 36. The output shaft of the fifth motor 63 is fixedly arranged with the second driving wheel 60. The fifth motor 63 drives the second driving wheel 60 to rotate. The second driving wheel 60 drives the second driven wheel 61 to rotate through the second belt 62. The second belt 62 transports the material above to the right end and falls into the cargo box of the truck.

[0057] In this embodiment, the walking mechanism 1 includes a vehicle body 64, the upper end surface of the vehicle body 64 is fixed to the second vertical shaft 52, the front side and the rear side of the vehicle body 64 are provided with track assemblies 65 along the left and right directions, the track assemblies 65 drive the vehicle body 64 to move, and a counterweight block 66 is fixedly provided at the right end of the horizontal plate 2, the counterweight block 66 makes the center of the entire device move to the right, thereby increasing stability.

[0058] The working principle of the present invention is as follows: the crawler assembly 65 drives the vehicle body 64 to move to the material collection location, and the pitch angle of the material collection arm 5 is adjusted by telescoping the first hydraulic telescopic rod 35 so that the bucket wheel 7 contacts the material pile, and the pitch angle of the discharge arm 4 is adjusted by the second hydraulic telescopic rod 49 so that the outer end of the discharge arm 4 is located above the truck cargo bucket, and then the first motor 31 is started, and the rotating ring 6 rotates counterclockwise, so that the bucket wheel 7 on the rotating ring 6 shovels and collects materials from the material pile in turn, and the materials enter the bucket wheel 7. When the bucket wheel 7 rises above the baffle plate 12 and starts to drop materials, the limit groove limits the limit rod 16, so that the limit rod 16 and the drive rod 15 The rotation of the scraper plate 9 and the bucket wheel 7 is asynchronous, so that the scraper plate 9 slides inward relative to the inner top wall of the bucket wheel 7, so that the scraper plate 9 scrapes 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 to quickly separate the material in the bucket wheel 7 and complete the material dropping; 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 transports the upper material to the dropping cover 33 at the right end, and then falls from the dropping cup 34 to the second belt 62 below, the second belt 62 transports the upper material to the right end and falls into the cargo box of the truck to achieve the purpose of loading.

Claims

1. A crawler bucket wheel loader, characterized in that: The invention comprises a walking mechanism (1), the upper end surface of the walking mechanism (1) is rotatably connected to a slewing platform, the slewing platform comprises a horizontal plate (2) and a bracket (3), the bracket (3) is fixedly arranged on the upper end surface of the horizontal plate (2), the upper end surface of the horizontal plate (2) is hinged with a discharge arm (4), a pick-up arm (5) is hinged in the bracket (3), and the right end of the pick-up arm (5) is located above the left end of the discharge arm (4); a first feeding mechanism is arranged in the pick-up arm (5), and a second feeding mechanism is arranged in the pick-up arm (4); a discharge arm pitching mechanism is arranged between the upper end surface of the discharge arm (4) and the bracket (3), and a pick-up arm pitching mechanism is arranged between the left side surface of the horizontal plate (2) and the pick-up arm (5); A rotating ring (6) is rotatably connected to one side of the outer end of the material taking arm (5); a plurality of bucket wheels (7) are evenly and fixedly arranged on the outer surface of the rotating ring (6) along the circumference; and blanking holes (8) are provided at positions corresponding to the bucket wheels (7) on the circumferential surface of the rotating ring (6); the interiors of the bucket wheels (7) are all in communication with the corresponding blanking holes (8); a scraper plate (9) is slidably arranged on the inner top wall of the bucket wheel (7); a bucket wheel protective cover (10) fixedly arranged with the material taking arm (5) is arranged on the outer side of the rotating ring (6); 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 scraper plate (9) to move inward on the inner top wall of the bucket wheel (7); The inner top wall of the bucket wheel (7) is fixedly provided with a guide rail (14), and a guide groove is provided at a position corresponding to the guide rail (14) of the scraper plate (9), and the scraper plate (9) is slidably connected to the bucket wheel (7) through the guide rail (14) and the guide groove; a driving rod (15) is slidably provided in the bucket wheel (7) along the direction of the guide rail (14), the inner end of the driving rod (15) is fixedly provided with the scraper plate (9), and the outer end of the driving rod (15) extends to the outside of the bucket wheel (7) and is vertically fixedly provided with a limit rod ( 16), a spring (17) is sleeved on the driving rod (15) between the limit rod (16) and the bucket wheel (7); the outer end of the spring (17) is fixedly arranged on the limit rod (16), and the inner end of the spring (17) is fixedly arranged on the bucket wheel (7); a limit block (18) is fixedly arranged on the outer end of the guide rail (14), and a receiving groove (19) is provided at a position corresponding to the scraper plate (9) and the limit block (18); the spring (17) is in a stretched state, and always drives the scraper plate (9) to move outward; The limiting device comprises a limiting plate (20) fixedly arranged on a side of the bucket wheel protective cover (10); a limiting groove is provided on the front side of the limiting plate (20); the limiting groove comprises an inner ring groove (21), an outer ring groove (22) and a vertical groove (23); the top end of the vertical groove (23) is communicated with the outer ring groove (22); the bottom end of the vertical groove (23) is communicated with the inner ring groove (21); the bottom end of the inner ring groove (21) is connected to a notch (24) provided on the limiting plate (20); ) are connected; the inner annular groove (21) and the outer annular groove (22) are concentric with the rotating ring (6); when the scraper plate (9) is located outside the inner top wall of the bucket wheel (7) under the action of the spring (17), the movement trajectory of the rear end of the limit rod (16) coincides with the inner annular groove (21); when the scraper plate (9) is located inside the inner top wall of the bucket wheel (7) and contacts the inner side wall of the bucket wheel (7), the movement trajectory of the rear end of the limit rod (16) coincides with the outer annular groove (22).

2. The crawler bucket wheel loader according to claim 1, characterized in that: A material receiving plate (11) is fixedly provided on the upper end surface of the material taking arm (5), the top end of the material receiving plate (11) extends obliquely 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 (5).

3. The crawler bucket wheel loader according to claim 2, characterized in that: A material baffle plate (12) is fixedly provided on the rear side of the material picking arm (5), the outer surface of the material baffle plate (12) is in contact with the inner wall of the rotating ring (6), the material baffle plate (12) is located on the left side inside the rotating ring (6), a docking plate (13) is fixedly provided on the top of the material baffle plate (12), and the outer end of the docking plate (13) is fixedly provided on the material receiving plate (11).

4. The crawler-type bucket wheel loader according to claim 1, characterized in that: The material taking arm (5) comprises two guard plate assemblies (25), the first material feeding mechanism is arranged in the two guard plate assemblies (25), a fixed arm (26) is fixedly arranged on the rear side surface of the rear guard plate assembly (25), a bearing seat (27) is fixedly arranged on the outer end of the fixed arm (26), a main shaft (28) is rotatably connected inside the bearing seat (27), an inner plate (29) is fixedly arranged on the outer surface of the main shaft (28), and the outer surface of the inner plate (29) is fixedly connected to the rotating ring (6); a mounting plate (30) is fixedly arranged on the outer side surface of the fixed arm (26), a first motor (31) is fixedly arranged on the upper end surface of the mounting plate (30), an output shaft of the first motor (31) is fixedly arranged on the input shaft of a gear box (32), and the output shaft of the gear box (32) is fixedly arranged on the main shaft (28).

5. The crawler bucket wheel loader according to claim 4, characterized in that: A material drop cover (33) is fixedly provided on the right side of the bracket (3), the left side of the material drop cover (33) is open, a material drop cup (34) is fixedly provided at the bottom end of the material drop cover (33), and the material drop cup (34) is located above the left end of the discharge arm (4); the right end of the guard plate assembly (25) extends into the material drop cover (33) and is rotatably connected to the material drop cover (33), and the material picking arm pitch mechanism includes a first hydraulic telescopic rod (35) arranged between the lower end surface of the guard plate assembly (25) and the horizontal plate (2), the fixed end of the first hydraulic telescopic rod (35) is hinged to the left side surface of the horizontal plate (2), and the output ends of the first hydraulic telescopic rod (35) are both hinged to the lower end surfaces of the two guard plate assemblies (25).

6. The crawler bucket wheel loader according to claim 1, characterized in that: The unloading arm (4) comprises two side plate assemblies (36), the second feeding mechanism is arranged in the two side plate assemblies (36), the lower end surfaces of the two side plate assemblies (36) are provided with fixed blocks (37) fixedly arranged with the two side plate assemblies (36), the bottom end of the fixed block (37) is hinged with a first gear (39) through a first hinge shaft (38), and the first hinge shaft (38) is arranged along the front-back direction; the lower end surface of the first gear (39) is fixedly provided with a first vertical shaft (40), and the first vertical shaft (40) is rotatably connected to the horizontal plate (2); a second motor (41) is fixedly provided on the horizontal plate (2), and the output shaft of the second motor (41) is fixedly provided with a second gear (42), and the second gear (42) is meshed with the first gear (39).

7. The crawler bucket wheel loader according to claim 6, characterized in that: Two mounting blocks (43) are fixedly provided on the upper end surface of each side panel assembly (36), and a tension rod (44) is hingedly connected inside each mounting block (43). A support block (45) is fixedly provided on the right side surface of the bracket (3). The interior of the support block (45) is hingedly connected to a hinge block (47) via a second hinge shaft (46), and the outer surface of the hinge block (47) is hingedly connected to a second hydraulic telescopic rod (49) via a third hinge shaft (48). The second hinge shaft (46) is arranged in the vertical direction, and the third hinge shaft (48) is arranged in the front-to-back direction. The output end of the second hydraulic telescopic rod (49) is hingedly connected to a triangular block (50), and the right end of the triangular block (50) is hingedly connected to a connecting block (51). The right side surface of the connecting block (51) is fixedly connected to the two tension rods (44) on the right side, and the front and rear side surfaces of the triangular block (50) are respectively fixedly connected to the corresponding tension rods (44) on the left side.

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