Bucket of open pit coal mine wheel loader

Abstract

The bucket comprises a bucket body, a scraper plate which is attached to the inner wall of the bucket body and moves in the width reciprocating direction is arranged in the bucket body, bucket teeth are connected to the bottom of an opening of the bucket body through a rotating plate, and the rotating plate is rotationally connected with the bucket body. And the rotating plate is provided with a locking mechanism which is in linkage unlocking with the scraping plate. Coal slime attached to the inner wall of the bucket can be shoveled through the reciprocating scraper, the problem of incomplete discharging caused by material adhesion is effectively solved, the coal slime attached to the inner wall of the bucket is prevented from being thicker and thicker, it is ensured that the loading capacity can reach the designed capacity of the bucket, and therefore the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of loader technology, and in particular to a bucket for an open-pit coal mine wheel loader. Background Technology

[0002] In open-pit coal mining operations, wheel loaders play an irreplaceable role as crucial material loading equipment. However, under actual working conditions, loaders face many challenging problems.

[0003] To suppress dust at work sites, spray dust suppression devices are typically used. The sprayed water mist adheres heavily to the surface of the coal during settling, significantly increasing the adhesion between coal pieces and between coal pieces and the inner wall of the bucket. When the bucket performs unloading operations, material adhesion occurs frequently, making complete unloading difficult. Over time, the coal sludge adhering to the inner wall of the bucket gradually thickens, forming a "stubborn coating" inside the bucket. This not only results in the actual loading capacity of the bucket being far lower than its design capacity, reducing the material handling efficiency per operation, but also requires the loader to consume more energy during operation to overcome the increased resistance caused by the coal sludge adhesion, thus accelerating equipment wear, shortening the overall service life of the equipment, and increasing maintenance costs and downtime. Summary of the Invention

[0004] The purpose of this invention is to provide a bucket for an open-pit coal mine wheel loader to solve the above-mentioned technical problems.

[0005] This invention provides a bucket for an open-pit coal mine wheel loader, comprising a bucket body, a scraper that fits against the inner wall of the bucket body and moves in a reciprocating direction along the width, bucket teeth being connected to the bottom of the opening of the bucket body via a rotating plate, the rotating plate being rotatably connected to the bucket body, and the rotating plate being equipped with a locking mechanism that is linked and unlocked with the scraper.

[0006] Furthermore, the scraper is disposed inside the bucket cavity of the bucket body and fits against the inner wall of the casing plate of the bucket body.

[0007] Furthermore, a lead screw is installed inside the bucket body, and the scraper is mounted on the lead screw and moves back and forth along the lead screw. One end of the lead screw passes through the side plate of the bucket body and extends to the outside to connect with the motor.

[0008] Furthermore, the bucket body is equipped with one or more limiting ribs arranged along the width direction, and the scraper is provided with grooves that cooperate with and are slidably connected to the limiting ribs.

[0009] Furthermore, the locking mechanism includes a first hanging plate disposed on the side of the rotating plate, a through hole is provided on the side plate of the bucket body on the same side as the first hanging plate, a connecting post is provided on the scraper plate through the through hole, and the hanging port of the first hanging plate is suspended and fastened to the outer end of the connecting post.

[0010] Furthermore, the locking structure also includes a second hanging plate disposed on the other side of the rotating plate, the hanging opening of the second hanging plate being disposed upwards, and a limiting post being installed on the side plate of the bucket body on the same side as the second hanging plate, which is suspended and overlapped with the hanging opening of the second hanging plate.

[0011] Furthermore, the rotating plate is provided with a rotating shaft, and the two ends of the rotating shaft are respectively connected to the first hanging plate and the second hanging plate.

[0012] Furthermore, the rotating plate has a rotating hole, and the rotating shaft is rotatably installed in the rotating hole.

[0013] Furthermore, a baffle plate is installed at the front end of each of the two side plates of the bucket body. A rotating knob is rotatably installed on the outer wall of the baffle plate. A telescopic rod is provided between the rotating knob and the first or second hanging plate on the same side. A spring is sleeved on the outside of the telescopic rod, with its two ends respectively installed on the rotating knob and the first or second hanging plate.

[0014] Furthermore, the two side plates of the bucket body are equipped with hydraulic cylinders near the discharge port, and the telescopic end of the hydraulic cylinder is equipped with a limiting pressure roller that extends forward and slides in contact with the first or second hanging plate.

[0015] This invention uses a reciprocating scraper to remove coal slime adhering to the inner wall of the bucket, effectively solving the problem of incomplete unloading caused by material adhesion, preventing the coal slime adhering to the inner wall of the bucket from becoming thicker and thicker, ensuring that the loading capacity can reach the design capacity of the bucket, thereby improving work efficiency. Attached Figure Description To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the bucket of the present invention at a first angle; Figure 2 This is a schematic diagram of the bucket of the present invention from another angle; Figure 3 This is a schematic diagram of the scraper structure of the present invention; Figure 4 This is a schematic diagram of the rotating plate and bucket teeth structure of the present invention; Figure 5 This is a schematic diagram showing the connection of the two hanging plates at both ends of the rotating shaft in this invention; Figure 6 for Figure 2 A magnified schematic diagram of the local structure at point B; Figure 7 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0017] Explanation of reference numerals in the attached figures: In the diagram: 1-Bucket body, 2-Rotating plate, 3-Bucket teeth, 31-Tooth seat, 32-Tooth head, 4-Scraper, 41-First groove, 42-Second groove, 43-Connecting column, 5-First limiting rib, 6-Second limiting rib, 7-Motor, 8-Screw screw, 9-Baffle plate, 10-Rotating shaft, 11-First lifting plate, 12-Second lifting plate, 13-Hydraulic cylinder, 14-Limiting pressure roller, 15-Rotating knob, 16-Telescopic rod, 17-Spring, 18-Limiting column; Detailed Implementation The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] Example 1 like Figures 1-7 As shown: A bucket for an open-pit coal mine wheel loader includes a bucket body 1 composed of an arc-shaped cover plate and two side plates, the cover plate and the side plates forming a bucket cavity, and a conventional hinge seat provided on the bucket body 1.

[0021] The bucket body 1 has a scraper 4 inside the bucket cavity that fits against the inner wall of the cover plate, and the outer arc surface of the scraper 4 matches the contour of the inner wall of the cover plate.

[0022] During operation, the water mist sprayed by the dust suppression device at the working face falls onto the coal, causing it to stick. When the bucket body 1 dumps the coal, incomplete unloading occurs due to this material adhesion. Especially after prolonged operation, the coal sludge adhering to the inner wall of the bucket body 1 becomes increasingly thick, preventing the loading capacity from reaching the bucket's design capacity and thus affecting work efficiency. This embodiment proposes to install a scraper 4 sliding along the length of the bucket body 1 inside. After the bucket body 1 has been operating for a period of time, the scraper 4 reciprocates within it, thereby removing the coal sludge adhering to the inner wall of the bucket body 1.

[0023] The bucket body 1 is equipped with a drive mechanism that controls the scraper 4 to move in the width reciprocating direction. The drive mechanism includes a lead screw 8 and a motor 7 that drives the lead screw 8 to rotate. The lead screw 8 is installed on the top of the bucket cavity and is rotatably connected to the side plates on both sides. The scraper 4 is connected to the sliding nut of the lead screw 8. One end of the lead screw 8 extends through the side plate of the bucket body 1 to the outside and is connected to the motor 7.

[0024] The bucket body 1 is equipped with a first limiting rib 5 and a second limiting rib 6 arranged along the width direction. The first limiting rib 5 is located near the middle of the scraper 4, and the second limiting rib 6 is located near the bottom of the scraper 4. The scraper 4 is provided with a first groove 41 and a second groove 42 that cooperate with and slide with the first limiting rib 5 and the second limiting rib 6 respectively.

[0025] Through the cooperation of the first groove 41 and the first limiting rib 5, and the cooperation of the second groove 42 and the second limiting rib 6, the scraper 4 can smoothly move in a straight line inside the bucket body 1.

[0026] The bucket body 1 has teeth 3 installed at the front end of the opening. Because the teeth 3 are distributed at the front end of the opening of the bucket body 1, the bottom of the scraper 4 cannot extend to the position of the teeth 3. Therefore, the scraper 4 cannot completely scrape off the coal sludge near the teeth 3. Moreover, after the scraper 4 scrapes off the coal sludge inside the bucket body 1, the coal sludge will slide down to the vicinity of the teeth 3 under the action of gravity and will not fall directly. This will greatly reduce the shoveling effect. In addition, the coal sludge sticking to the teeth 3 will also affect them. In view of this, the front end of the bottom of the opening of the bucket body 1 is connected to the teeth 3 through a rotating plate 2. The rotating plate 2 is rotatably connected to the bucket body 1, and the bottom of the scraper 4 extends to the rotating part of the rotating plate 2. When the scraper 4 needs to clean the inner wall of the bucket body 1, the rotating plate 2 rotates outward to a certain angle relative to the bucket body 1 to ensure that the shoveled coal sludge falls directly to the outside of the bucket body 1 and does not come into contact with the rotating plate 2 or the teeth 3.

[0027] In this embodiment, the bucket tooth 3 includes a tooth base 31 and a tooth head 32. The tooth head 32 is detachably mounted on the tooth base 31. Since the tooth head 32 is prone to wear, it is designed to be detachable to facilitate replacement by personnel.

[0028] The rotating plate 2 is equipped with a locking mechanism that is linked and unlocked with the scraper 4. The rotating plate 2 has a rotating hole. The locking mechanism includes a rotating shaft 10 that is rotatably installed in the rotating hole. The two ends of the rotating shaft 10 are respectively connected to a first hanging plate 11 and a second hanging plate 12 located on the side of the rotating plate 2. The ends of the first hanging plate 11 and the second hanging plate 12 are connected to the rotating shaft 10. The end of the first hanging plate 11 away from the rotating shaft 10 is provided with a hanging opening facing downwards, and the end of the second hanging plate 12 away from the rotating shaft 10 is provided with a hanging opening facing upwards. The hanging openings of the first hanging plate 11 and the second hanging plate 12 are arranged opposite to each other. A through hole is provided on the side plate of the bucket body 1 on the same side as the first hanging plate 11. A connecting post 43 is provided on the scraper 4 through the through hole. The hanging opening of the first hanging plate 11 is suspended and fastened to the outer end of the connecting post 43. A limiting post 18 is installed on the outer wall of the side plate of the bucket body 1 on the same side as the second hanging plate 12, which is suspended and overlapped with the hanging opening of the second hanging plate 12.

[0029] The front ends of the two side plates of the bucket body 1 are each equipped with a vertically arranged baffle plate 9. The two ends of the rotating plate 2 are respectively abutted against the lower end of the baffle plate 9. A rotating knob 15 is rotatably installed on the outer wall of the baffle plate 9. A telescopic rod 16 is provided between the rotating knob 15 and the first hanging plate 11 or the second hanging plate 12 on the same side. The end of the telescopic rod 16 is located in the middle position of the first hanging plate 11 or the second hanging plate 12. A spring 17 is sleeved on the outside of the telescopic rod 16, with its two ends respectively installed on the rotating knob 15 and the first hanging plate 11 or the second hanging plate 12.

[0030] This embodiment also limits the rotation angle of the first hanging plate 11 and the second hanging plate 12. The rotation angle of the first hanging plate 11 and the second hanging plate 12 should not be too large. It is best not to rotate them to below the first hanging plate 11 and the second hanging plate 12, so as to prevent the ends of the two from directly contacting the ground and breaking off. Therefore, hydraulic cylinders 13 are installed on the two side plates of the bucket body 1 near the discharge port. The telescopic end of the hydraulic cylinder 13 is equipped with a limiting pressure roller 14 that extends forward and slides in contact with the first hanging plate 11 or the second hanging plate 12.

[0031] In the initial state, the hook at the end of the first hanging plate 11 is fastened above the connecting column 43, and the hook at the end of the second hanging plate 12 is attached to the bottom of the limiting column 18. The spring 17 between the rotating knob 15 and the first hanging plate 11 or the second hanging plate 12 is in a compressed state in the initial state, forcing the first hanging plate 11 to be tightly fastened to the connecting column 43. The first hanging plate 11 and the second hanging plate 12 exert a pulling force on the rotating plate 2, causing the rotating plate 2 and the baffle plate 9 to abut against each other, ensuring the normal coal shoveling operation of the bucket body 1.

[0032] When it is necessary to clean the inner wall of the bucket body 1, the motor 7 is started to drive the lead screw 8 to rotate. At this time, the scraper 4 drives the connecting column 43 away from the through hole on the side plate of the bucket body 1 and begins to slide towards the other side plate of the bucket body 1. The connecting column 43 enters the interior of the bucket body 1. The hanging port at the end of the first hanging plate 11 disengages from the connecting column 43. Under the action of the spring 17, the first hanging plate 11 is pushed to rotate counterclockwise. At this time, the second hanging plate 12 rotates synchronously under the linkage of the rotating shaft 10. The second hanging plate 12 rotates clockwise. The hanging port of the second hanging plate 12 disengages from the limiting column 18. The rotating plate 2 loses the tension connection with the bucket body 1. Under the action of gravity, the rotating plate 2 and the bucket teeth 3 will rotate relative to the bucket body 1 with the hinge connection between the rotating plate 2 and the bucket body 1 as the rotation center. The coal sludge removed from the interior of the bucket body 1 can fall directly to the outside of the bucket body 1 through the front opening of the bucket body 1 without having to be poured out by the rotating plate 2 and the bucket teeth 3.

[0033] After the first lifting plate 11 and the connecting column 43 disengage, the first lifting plate 11 rotates under the action of the spring 17 until it contacts the circumferential surface of the limiting pressure roller 14, which then limits its movement. Once the inside of the bucket body 1 is cleaned, the driver places the bucket body 1 on the ground. At this time, the rotating plate 2 and the bucket teeth 3 first contact the ground and then rotate relative to the bucket body 1 to their reset position. This activates the extension of the two hydraulic cylinders 13, causing the limiting pressure roller 14 to slide along the lower surfaces of the first lifting plate 11 and the second lifting plate 12. The motor 7 drives the first hanging plate 11 and the second hanging plate 12 to rotate and reset. Then, the motor 7 controls the scraper 4 to reset. The hanging port of the second hanging plate 12 contacts and fastens with the limiting post, ensuring the reset rotation angle of the first hanging plate 11 and the second hanging plate 12. The connecting post 43 on the scraper 4 extends to the outside through the through hole on the side plate of the bucket body 1. At this time, the hanging port of the first hanging plate 11 is coaxial with the through hole. Then, the piston rods of the two oil cylinders 13 retract, and the first hanging plate 11 is re-fastened to the connecting post 43 under the action of the spring 17.

[0034] This invention features a scraper that slides along the length of the bucket's interior. The scraper reciprocates within the bucket, effectively removing coal sludge adhering to the inner wall. This solves the problem of incomplete unloading caused by material adhesion, preventing the coal sludge from thickening on the bucket's inner wall and ensuring the loading capacity reaches the bucket's design capacity, thus improving work efficiency. A rotating plate is rotatably installed at the front opening of the bucket, with the scraper's bottom extending to the rotating part of the plate. During cleaning, the rotating plate rotates outward at a certain angle, causing the scraped coal sludge to fall directly to the outside of the bucket, preventing contact between the sludge and the rotating plate and bucket teeth, thus preventing re-adhesion and improving cleaning effectiveness. Through the coordinated operation of components such as a motor, lead screw, connecting column, limit column, first hanging plate, second hanging plate, telescopic rod, and spring, this invention achieves the function of automatically opening the rotating plate during cleaning and automatically resetting it after cleaning, simplifying operation and improving the automation level of the equipment.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bucket for an open-pit coal mine wheel loader, characterized in that: The device includes a bucket body, which has a scraper that fits against its inner wall and moves in a reciprocating direction along its width. The bottom of the bucket body opening is connected to bucket teeth via a rotating plate. The rotating plate is rotatably connected to the bucket body and is equipped with a locking mechanism that is linked to and unlocks the scraper.

2. The bucket of the open-pit coal mine wheel loader according to claim 1, characterized in that: The scraper is disposed inside the bucket cavity of the bucket body and fits against the inner wall of the cladding plate of the bucket body.

3. The bucket of the open-pit coal mine wheel loader according to claim 1, characterized in that: A lead screw is installed inside the bucket body, and the scraper is mounted on the lead screw and moves back and forth along the lead screw. One end of the lead screw passes through the side plate of the bucket body and extends to the outside to connect with the motor.

4. The bucket of the open-pit coal mine wheel loader according to claim 1, characterized in that: The bucket body is equipped with one or more limiting ribs arranged along the width direction, and the scraper is provided with grooves that cooperate with and are slidably connected to the limiting ribs.

5. The bucket of the open-pit coal mine wheel loader according to claim 1, characterized in that: The locking mechanism includes a first hanging plate disposed on the side of the rotating plate. A through hole is provided on the side plate of the bucket body on the same side as the first hanging plate. A connecting post is provided on the scraper plate through the through hole. The hanging port of the first hanging plate is suspended and fastened to the outer end of the connecting post.

6. The bucket of the open-pit coal mine wheel loader according to claim 5, characterized in that: The locking structure also includes a second hanging plate disposed on the other side of the rotating plate. The hanging opening of the second hanging plate is facing upward. A limiting post is installed on the side plate of the bucket body on the same side as the second hanging plate, which is suspended and overlapped with the hanging opening of the second hanging plate.

7. The bucket of the open-pit coal mine wheel loader according to claim 6, characterized in that: The rotating plate is provided with a rotating shaft, and the two ends of the rotating shaft are respectively connected to the first hanging plate and the second hanging plate.

8. The bucket of the open-pit coal mine wheel loader according to claim 7, characterized in that: The rotating plate has a rotating hole, and the rotating shaft is rotatably installed in the rotating hole.

9. The bucket of the open-pit coal mine wheel loader according to claim 6, characterized in that: The front ends of the two side plates of the bucket body are equipped with baffles. A rotating knob is rotatably installed on the outer wall of the baffle. A telescopic rod is provided between the rotating knob and the first or second hanging plate on the same side. A spring is sleeved on the outside of the telescopic rod, with its two ends respectively installed on the rotating knob and the first or second hanging plate.

10. The bucket of the open-pit coal mine wheel loader according to claim 9, characterized in that: The two side plates of the bucket body are equipped with hydraulic cylinders near the discharge port. The telescopic end of the hydraulic cylinder is equipped with a limiting pressure roller that extends forward and slides in contact with the first or second hanging plate.

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