Grab bucket with anti-swing function

Abstract

This invention relates to the field of anti-sway technology for grab buckets, and in particular to a grab bucket with anti-sway function, comprising: a grabbing mechanism including a hanging plate, a support rod rotatably disposed on the end face of the hanging plate, a rotating shaft disposed within the support rod, a bucket body rotatably sleeved on the outer wall of the rotating shaft, and a lifting block rotatably disposed on the end face of the bucket body; and a buffering mechanism including a connecting column disposed on the end face of the lifting block, a connecting cylinder movably sleeved on the outer wall of the connecting column, a buffer plate disposed on the end face of the connecting cylinder, and a buffer cylinder disposed on the end face of the hanging plate. The connecting column is limited by the locking column, thereby realizing the fixed connection and release between the lifting block and the hanging plate, thereby reducing the relative displacement between the two during movement. At the same time, a fourth elastic element plays a buffering role between the buffer cylinder and the sliding column, thereby buffering the relative displacement between the lifting block and the hanging plate, reducing the generation of large-amplitude relative displacement, eliminating small-amplitude relative displacement, and thus reducing the swaying of the bucket body.

Description

Technical Field

[0001] This invention relates to the field of anti-sway technology for grab buckets, and in particular to a grab bucket with anti-sway function. Background Technology

[0002] A coal grab is a mechanical device used for loading and unloading coal. It is commonly found in coal mines, power plants, and other similar locations for extracting, transporting, and stockpiling coal. The grab shell is typically made of steel, possessing sufficient strength and rigidity to withstand working loads. The grab body controls the loading and unloading of coal, and this control can be achieved hydraulically or mechanically. The grab chain connects the grab shell and the transmission mechanism, enabling the grab to open, close, and operate.

[0003] The working principle of a coal grab bucket is that the bucket body opens and closes vertically, driven by a grab bucket chain. When the bucket body opens, coal can be grabbed and fed into it; when the bucket body closes, the coal is trapped inside. As the grab bucket chain moves, the grab bucket lifts or moves the coal to the target location, and then the grab bucket door reopens, completing the unloading process. The purpose of a coal grab bucket is to facilitate the loading, unloading, and stacking of coal. It can efficiently extract large quantities of coal and deliver them to designated locations, realizing the transportation and stacking of coal. By using coal grab buckets, manual labor intensity can be reduced, production efficiency can be improved, and the risks and safety hazards during coal transportation can also be reduced.

[0004] Coal grabs are prone to shaking during operation. Frequent shaking can damage the grab itself or its connecting parts, reducing its stability and efficiency. Shaking can also cause uneven coal distribution during loading and unloading, potentially leading to an unstable center of gravity and increasing the risk of accidents. Furthermore, shaking can cause coal dust to leak from coal piles, increasing the concentration of coal dust in the air. Coal dust is a flammable substance, and leakage could potentially cause a fire or explosion. Shaking can also injure nearby workers during operation; the force and speed of the shaking can cause collisions, pinching, or falling coal, posing a danger to workers. Therefore, anti-shaking measures are necessary for coal grabs.

[0005] Existing technologies typically rely on the operator's experience to control the lifting and moving speed of the grab bucket and reduce the shaking of the coal grab bucket itself. However, this method has a high operating threshold and increases labor costs. In addition, the lack of buffering in the internal connections of the grab bucket makes it easier for relative displacement to occur inside the grab bucket, resulting in shaking. Therefore, an anti-sway device is needed to automatically prevent the coal grab bucket from shaking and ensure equipment safety. Summary of the Invention

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0007] In view of the above problems, the grab bucket with anti-sway function in this invention is proposed.

[0008] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: a grab bucket with anti-sway function, comprising a grabbing mechanism, including a lifting plate, a support rod rotatably disposed on the end face of the lifting plate, a rotating shaft disposed within the support rod, a bucket body rotatably sleeved on the outer wall of the rotating shaft, and a lifting block rotatably disposed on the end face of the bucket body; and, The buffer mechanism includes a connecting post disposed on the end face of the lifting block, a connecting cylinder movably sleeved on the outer wall of the connecting post, a buffer plate disposed on the end face of the connecting cylinder, and a buffer cylinder disposed on the end face of the lifting plate.

[0009] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, the end face of the connecting column is provided with a bowl block, the end face of the bowl block is provided with a groove, and the outer wall of the connecting column is provided with a sliding ball.

[0010] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, the sliding ball is slidably fitted inside the groove, and the connecting cylinder has a cavity inside.

[0011] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, wherein: a locking post is slidably provided on the outer wall of the connecting cylinder, and a second elastic element is provided between the locking post and the connecting cylinder.

[0012] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, wherein: the end face of the buffer plate is rotatably provided with a swing arm, the end face of the swing arm is provided with a third elastic element, the outer wall of the swing arm is rotatably provided with a connecting rod, and the inner wall of the connecting rod is rotatably provided with a buffer disc.

[0013] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, the buffer disc end face is provided with a sliding column, the sliding column is slidably disposed on the inner wall of the buffer cylinder, and a fourth elastic element is provided between the sliding column and the buffer cylinder.

[0014] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, the third elastic element is symmetrically arranged at both ends at the center of the swing arm, and two connecting rods are also symmetrically arranged, with both ends of the connecting rods hinged to the swing arm and the buffer plate respectively. A locking post is fixedly provided on one end face of the buffer plate perpendicular to the connecting rod.

[0015] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, one end of the bowl block is a spherical surface, the groove is an annular groove, the two ends of the sliding ball are symmetrically opened with two chamfers, one chamfer of the sliding ball is slidably embedded into the groove, and the second elastic element is a spring.

[0016] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, it further includes a sealing mechanism, comprising a frame disposed on the end face of the bucket body, a folding plate slidably disposed inside the frame, and a cleaning brush disposed on the end face of the folding plate; the frame has grooves on both sides, rollers are slidably disposed in the grooves, a transmission belt is also disposed in the grooves, the rollers are symmetrically disposed on both sides of the transmission belt, and a transmission shaft is disposed between the rollers on both sides.

[0017] As a preferred embodiment of the grab bucket with anti-sway function described in this invention, it further includes a lubrication mechanism, comprising an oil hole provided on the end face of the rotating shaft, a dust cover rotatably provided on the end face of the bucket body, lubricating oil provided in the dust cover, and a push rod slidably provided on the inner wall of the dust cover; a cylinder is rotatably sleeved on the outer wall of the dust cover, the cylinder is connected to the outer wall of the support rod, and the oil hole is provided inside the dust cover.

[0018] The beneficial effects of the grab bucket with anti-sway function in this invention are as follows: by limiting the connecting column through the locking column, the fixed connection and release between the lifting block and the hanging plate are realized, thereby reducing the relative displacement between the two during movement. At the same time, the fourth elastic element plays a buffering role between the buffer cylinder and the sliding column, thereby buffering the relative displacement between the lifting block and the hanging plate, reducing the generation of large-amplitude relative displacement, eliminating small-amplitude relative displacement, and thus reducing the shaking of the bucket body. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 An overall structural diagram of a grab bucket assembly with anti-sway function.

[0020] Figure 2 This is a schematic diagram of the engagement of the locking post and the connecting post in this invention.

[0021] Figure 3 This is a schematic diagram of the specific structure of the buffer cylinder and buffer plate in this invention. Figure 4 This is a partially enlarged structural diagram of the grab bucket with anti-sway function in this invention.

[0022] Figure 5 This is a schematic diagram of the working state of the folding plate in this invention.

[0023] Figure 6 This is a schematic diagram of the folding plate shrinkage process in this invention.

[0024] Figure 7 This is a schematic diagram of the unfolding process of the folding plate in this invention.

[0025] Figure 8 This is a schematic diagram of the internal structure of the dust cover and oil hole in the oil injection process of the present invention.

[0026] Figure 9 This is a partial enlarged view of the platform and disk in this invention. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1 Reference Figure 1-4 The first embodiment of the present invention includes a gripping mechanism 100, a sealing mechanism 200, a lubrication mechanism 300, and a buffer mechanism K. The buffer mechanism K fixes and buffers the hanging plate 101 and the lifting block 105, thereby preventing the bucket body 104 from shaking significantly during movement, and further reducing the shaking of the grab bucket.

[0031] Specifically, the grab bucket with anti-sway function includes a grab bucket anti-sway system, and a grabbing mechanism 100, including a lifting plate 101, a support rod 102 rotatably disposed on the end face of the lifting plate 101, a rotating shaft 103 disposed within the support rod 102, a bucket body 104 rotatably sleeved on the outer wall of the rotating shaft 103, and a lifting block 105 rotatably disposed on the end face of the bucket body 104; and a sealing mechanism 200, including a frame 201 disposed on the end face of the bucket body 104, a folding plate 202 slidably disposed inside the frame 201, and a cleaning brush 203 disposed on the end face of the folding plate 202; and a lubrication mechanism 300, including an oil hole 301 disposed on the end face of the rotating shaft 103, a dust cover 302 rotatably disposed on the end face of the bucket body 104, lubricating oil 303 disposed within the dust cover 302, and a push rod 304 slidably disposed on the inner wall of the dust cover 302; and, The buffer mechanism K includes a connecting column K-1 located on the end face of the lifting block 105, a connecting cylinder K-2 movably sleeved on the outer wall of the connecting column K-1, a buffer plate K-3 located on the end face of the connecting cylinder K-2, and a buffer cylinder K-4 located on the end face of the lifting plate 101.

[0032] Among them, the end face of the connecting column K-1 is provided with a cup block K-16, the end face of the cup block K-16 is provided with a groove K-14, the outer wall of the connecting column K-1 is provided with a sliding ball K-15, the sliding ball K-15 is slidably fitted into the groove K-14, the connecting cylinder K-2 is provided with a cavity K-5 inside, the outer wall of the connecting cylinder K-2 is provided with a locking post K-6, and a second elastic element K-7 is provided between the locking post K-6 and the connecting cylinder K-2.

[0033] Preferably, a swing arm K-8 is rotatably provided on the end face of the buffer plate K-3, a third elastic element K-9 is provided on the end face of the swing arm K-8, a connecting rod K-10 is rotatably provided on the outer wall of the swing arm K-8, a buffer disc K-11 is rotatably provided on the inner wall of the connecting rod K-10, a sliding column K-12 is provided on the end face of the buffer disc K-11, the sliding column K-12 is slidably provided on the inner wall of the buffer cylinder K-4, and a fourth elastic element K-13 is provided between the sliding column K-12 and the buffer cylinder K-4.

[0034] Furthermore, one end of the bowl block K-16 is a spherical surface, the groove K-14 is an annular groove, the two ends of the sliding ball K-15 are symmetrically opened with two chamfers, one chamfer of the sliding ball K-15 can slide into the groove K-14, and the second elastic element K-7 is a spring.

[0035] Preferably, the locking post K-6 slides through into the interior of the connecting cylinder K-2, and a wedge-shaped block is provided at one end of the locking post K-6 inside the cavity K-5. The opening of the wedge-shaped block faces downward and slides in cooperation with the two chamfers of the sliding post K-15.

[0036] Preferably, the third elastic element K-9 and the fourth elastic element K-13 are springs, and two swing arms K-8 are symmetrically provided at the center of the end face of the buffer plate K-3. The swing arms K-8 are hinged and rotatably located on the end face of the buffer plate K-3.

[0037] Among them, the third elastic element K-9 is symmetrically arranged at both ends at the center of the two swing arms K-8, and two connecting rods K-10 are also symmetrically arranged, with the two ends of the connecting rods K-10 respectively hinged to the swing arms K-8 and the buffer plate K-11. The buffer plate K-11 is fixedly provided with a locking post K-6 on one end face of the vertical connecting rod K-10.

[0038] Furthermore, when the fourth elastic element K-13 is in the initial position, the sliding column K-12 is slidably positioned in the middle of the buffer cylinder K-4. When the buffer cylinder K-4 moves up and down and deviates from the equilibrium position, the sliding ball K-12 will automatically reset under the action of the fourth elastic element K-13, thereby playing a buffering role.

[0039] In summary, during use, after the grab bucket grabs coal, the lifting block 105 rises, causing the connecting column K-1 on the lifting block 105 to rise and slide into the cavity K-5. As the locking column K-6 slides along the spherical surface of the cup block K-16, the cup block K-16 will be locked and limited after passing the wedge-shaped block of the locking column K-6, thus fixing the two together. This fixes the lifting block 105 and the hanging plate 101, reducing the relative displacement between the two buckets 104, the lifting block 105, and the hanging plate 101, thereby reducing swaying. When disassembly is required, the connecting cylinder K-2 is pushed downward. At this time, the two chamfers of the sliding ball K-12 slide along the wedge-shaped block of the locking column K-6 and enter the groove K-14 and engage with it. Then, the connecting cylinder K-2 is moved upward, allowing the locking column K-6 to slide out along the other chamfer surface of the sliding ball K-12, thereby releasing the locking of the lifting block 105 and the hanging plate 101. When the grab bucket shakes, the lifting plate 101 and the lifting block 105 are positioned relative to each other, resulting in relative displacement between the buffer cylinder K-4 and the sliding column K-12. Under the push of the fourth elastic element K-13, the relative displacement is offset, thus providing a buffering effect and reducing the vertical shaking of the bucket. The swing arm K-8 rotates, and under the spring traction of the third elastic element K-9, the moving swing arm K-8 tends to return to its original equilibrium state, thus buffering and eliminating the relative displacement, reducing the relative movement of the grab bucket during movement, and thus reducing shaking.

[0040] Example 2 Reference Figures 1-6 This is the second embodiment of the present invention, which is based on the previous embodiment and includes a gripping mechanism 100, a sealing mechanism 200, and a lubrication mechanism 300. The upper end of the bucket body 104 is sealed by the folding plate 202 provided in the frame 201 to prevent dust from splashing into the rotating shaft 103 or the surrounding air during the coal gripping process.

[0041] Specifically, two buckets 104 are symmetrically arranged, and the two ends of the two buckets 104 are rotatably connected to the rotating shaft 103 and the lifting block 105, respectively. The two buckets 104 clamp each other to prevent coal leakage. The rotating shaft 103 is fixed inside the support rod 102. The buckets 104 and the rotating shaft 103 rotate relative to each other. The lifting block 105 is driven by a hydraulically driven guide cable to lift and thus realize the lifting function.

[0042] Preferably, the frame 201 has grooves 201a on both sides, and rollers 201b are slidably arranged in the grooves 201a. A transmission belt 201c is also provided in the grooves 201a. The rollers 201b are symmetrically arranged on both sides of the transmission belt 201c, and a transmission shaft 201b-1 is provided between the rollers 201b on both sides.

[0043] The drive shaft 201b-1 rotates through the interior of the folding plate 202. The outer wall of the folding plate 202 is provided with an array of brush plates 202a. The end face of the folding plate 202 is provided with a rotating column 202b. Each folding plate 202 is rotatably connected to the other through the rotating column 202b.

[0044] Furthermore, the drive shaft 201b-1 is in contact with the drive belt 201c, and the drive shaft 201b-1 can move under the action of the drive belt 201c, so that the roller 201b connected to the drive shaft 201b-1 slides along the slide groove 201a. The drive belt 201c is driven by a motor, and the motor is electrically connected to the lifting block 105. Each time the lifting block 105 rises, the drive belt 201c rotates clockwise.

[0045] Preferably, the frame 201 is fitted to the upper surface of the bucket body 104, and the drive shaft 201b-1 is rotatably positioned at the midpoint of the side of each folding plate 202. The folding plates 202 are connected by hinges. After the folding plates 202 are retracted and stacked, they fit together, thereby reducing the volume occupied in the bucket body 104. After the folding plates 202 are retracted, it is also easier for the operator to observe the amount of coal that has been grabbed in the bucket body 104.

[0046] In summary, during use, the operator first lowers the lifting block 105, and the two symmetrically arranged buckets 104 rotate and separate from each other. At this time, the folding plate 202 is in a retracted state, which makes it convenient for the operator to observe the amount of coal that has been grabbed in the bucket 104. After the grabbing is completed, the lifting block 105 is driven to rise, so that the two buckets 104 rotate and fit together to seal the coal in the bucket 104. Subsequently, the drive belt 201c starts, causing the drive shaft 201b-1, which is in contact with it, to slide together. This causes the rollers 201b at both ends of the drive shaft 201b-1 to slide along the groove 201a, thereby moving all the folding plates 202 together. Since the folding plates 202 are rotatably connected, they will rotate and unfold during this process, gradually covering the upper end of the bucket body 104 and forming a closed space with the bucket body 104. This seals and isolates the coal dust inside the bucket body 104, reducing the possibility of coal dust entering the rotating shaft 103 and blocking the flow of lubricating oil or hindering the interior of the rotating shaft 103. It also prevents some coal dust from entering the construction environment and causing dust pollution. At the same time, the brush plate 202a located on the side wall of the folding plate 202 can clean the coal dust adhering to the side wall of the bucket body 104 while the folding plate 202 rotates, preventing a large amount of coal dust from adhering and accumulating, which would reduce the capacity of the grab bucket 104 and affect work efficiency. It also reduces the time required for manual cleaning and improves work efficiency.

[0047] Example 3 Reference Figures 1-7 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the inner walls of the transmission belt 201c are respectively provided with a rotating wheel 201c-1 and a guide wheel 201c-2 at both ends. The end of the push rod 304 away from the dust cover 302 is provided with a transmission gear 304c. The rotating wheel 201c-1 is inserted through the transmission gear 304c. The automatic closing of the folding plate 202 is achieved by the relative rotation of the bucket body 104 and the support rod 102. At the same time, the dust cover 302 further prevents coal and mud from entering the interior of the rotating shaft 104.

[0048] Specifically, the outer wall of the drive shaft 201b-1 is provided with drive teeth 201b-2, and the drive shaft 201b-1 is engaged with the inner wall of the drive belt 201c through the drive teeth 201b-2; the two ends of the inner wall of the drive belt 201c are respectively provided with a rotating wheel 201c-1 and a guide wheel 201c-2, and the rotating wheel 201c-1 and the guide wheel 201c-2 simultaneously engage with the inner wall of the drive belt 201c, and the groove 201a is wider as it gets closer to the rotating wheel 201c-1.

[0049] Among them, the outer wall of the drive shaft 201b-1 has a circumferential array of drive teeth 201b-2, which makes the drive shaft 201b-1 move more smoothly when the drive belt 201c drives the drive shaft 201b-1 through the drive teeth 201b-2, and makes the process of each folding plate 202 shrinking and unfolding more smoothly, thus improving the unfolding and shrinking efficiency.

[0050] Furthermore, when the drive shaft 201b-1 is working normally, it will move together with the drive belt 201c. After the folding plate 202 retracts and expands to its maximum value, the drive shaft 201b-1 will be limited by the folding plate 202 and unable to move. As a result, the drive shaft 201b-1 will spin freely and thus be fixed in place. Due to the change in the width of the groove 201a, the roller 201b connected to the drive shaft 201b-1 will also spin freely.

[0051] Preferably, a cylinder 302a is rotatably sleeved on the outer wall of the dust cover 302, the cylinder 302a is connected to the outer wall of the support rod 102, and the oil hole 301 is located inside the dust cover 302; a transmission gear 304c is provided at the end of the push rod 304 away from the dust cover 302, and the rotating wheel 201c-1 is provided through the inside of the transmission gear 304c.

[0052] Furthermore, the rotating shaft 103 is slidably sleeved with the support rod 102, and the rotating shaft 103 and the support rod 102 can rotate coaxially through a flat key. The support rod 102 rotates through the dust cover 302 and is connected to the transmission gear 304c.

[0053] The dust cover 302 is fixedly installed on the outer wall of the bucket body 104, and the dust cover 302 rotates concentrically with the rotating shaft 103, so that the dust cover 302 can rotate together with the bucket body 104. The gear ratio is adjusted by the transmission gear 304c, so that when the dust cover 302 rotates, the rotating wheel 201c-1 also rotates, thereby driving the transmission belt 201c to rotate.

[0054] In summary, during use, whenever the bucket 104 finishes grabbing coal, the lifting block 105 drives the bucket 104 to rotate, and the rotating shaft 103 rotates relative to the bucket 104. This causes the support rod 102 connected to the rotating shaft 103 to rotate, driving the transmission gear 304c to rotate and transmitting power to the rotating wheel 201c-1, which in turn drives the transmission belt 201c to rotate. Thus, during each opening and closing of the bucket 104, the transmission belt 201c will automatically rotate in both directions, achieving automatic rotation of the folding plate 202.

[0055] Example 4 Reference Figures 1-9 This is the fourth embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the automatic oil lubrication of the rotating shaft 103 can be achieved through the process of the bucket body 104 and the support rod 102 rotating and opening, saving downtime for oiling and improving work efficiency.

[0056] Specifically, the inner wall of the cylinder 302a is provided with internal threads, the push rod 304 slides through the dust cover 302, the outer wall of the dust cover 302 is provided with air holes 302b, the outer wall of the push rod 304 is provided with a disc 304a, the outer wall of the disc 304a is provided with external threads, and the disc 304a is screwed into the inner wall of the cylinder 302a through the threads.

[0057] The outer wall of the dust cover 302 is rotatably fitted with a cylinder 302a, which is connected to the outer wall of the support rod 102. The oil hole 301 is located inside the dust cover 302. The rotating shaft 103 passes through the push rod 304 through the cylindrical shaft and is directly connected to the transmission gear 304c, driving the transmission gear 304c to rotate.

[0058] Furthermore, the cylinder 302a is rotatably mounted on the outer wall of the support rod 102 via a bearing seat, and the cylinder 302a is coaxial with the rotating shaft 103. The cylinder 302a is also rotatably mounted on the outer wall of the dust cover 302, and the disc 304a is slidably mounted on the outer wall of the push rod 304. The push rod 304 and the dust cover 302 can slide relative to each other but cannot rotate relative to each other.

[0059] Preferably, the outer wall of the push rod 304 is also rotatably fitted with a platform 305. The end face of the platform 305 is provided with a ratchet 305a. The push rod 304 rotatably passes through the end face of the platform 305, and the outer wall of the push rod 304 is rotatably provided with a turntable 305b. The outer wall of the turntable 305b is provided with an array of pawls 305c. A first elastic element 305d is provided between the pawls 305c and the turntable 305b. The platform 305 is fixedly mounted on the end face of the cylinder 302a.

[0060] The first elastic element 305d is a spring. The platform 305, the cylinder 302a, and the dust cover 302 form a closed inner cavity. The lubricating oil 303 is located inside the closed inner cavity. The dust cover 302 is fitted outside the oil hole 301. When the disc 304a slides down along the push rod 304, it pressurizes the lubricating oil 303 inside the closed cavity, thereby injecting hydraulic oil into the oil hole 301 to complete the oil injection.

[0061] Preferably, the pawl 305c is rotatably mounted on the outer wall of the turntable 305b, and the first elastic element 305d pushes the pawl 305c to rotate, causing the ratchet 305a and the pawl 305c to engage with each other, so that the turntable 305b can only rotate in one direction.

[0062] In summary, during use, when the bucket body 104 and the support rod 102 rotate relative to each other, the rotating shaft 103 will also rotate relative to the bucket body 104. Taking the support rod 102 as a reference, when the bucket body 104 rotates clockwise, the dust cover 302 connected to the bucket body 104 also rotates clockwise. At the same time, the cylindrical shaft drives the transmission gear 304c to rotate, thereby cleaning the coal ash on the inner wall of the bucket body 104 and opening the folding plate 202 to facilitate observation of the amount of coal grabbed inside the bucket body 104.

[0063] At the same time, the push rod 304 connected to the dust cover 302 will also rotate, driving the turntable 305b to rotate. Since the pawl 305c and ratchet 305a are engaged at this time, the platform 305 connected to the ratchet 305a will rotate, and the cylinder 302a connected to the platform 305 will rotate together with it. When the grab bucket body 104 and the support rod 102 rotate counterclockwise, the pawl 305c and ratchet 305a cannot be engaged at this time, and the cylinder 302a and the platform 305 cannot rotate together, so they rotate relative to each other. As a result, the cylinder 302a and the disc 304a inside it rotate relative to each other. The disc 304a rotates along the thread direction and moves downward along the push rod 304, pressurizing and pushing the lubricating oil 303 in the closed cavity into the oil hole 301, thereby completing the oil injection. The existence of the dust cover 302 not only prevents coal and mud from entering the oil hole 301, but also realizes the automatic oil injection of the rotating shaft 103.

[0064] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0065] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0066] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A grab bucket with anti-swing function, characterized in that: include, The gripping mechanism (100) includes a hanging plate (101), a support rod (102) rotatably disposed on the end face of the hanging plate (101), a rotating shaft (103) disposed within the support rod (102), a bucket (104) rotatably sleeved on the outer wall of the rotating shaft (103), and a lifting block (105) rotatably disposed on the end face of the bucket (104); and, The buffer mechanism (K) includes a connecting post (K-1) disposed on the end face of the lifting block (105), a connecting cylinder (K-2) movably sleeved on the outer wall of the connecting post (K-1), a buffer plate (K-3) disposed on the end face of the connecting cylinder (K-2), and a buffer cylinder (K-4) disposed on the end face of the lifting plate (101). The end face of the connecting post (K-1) is provided with a cup block (K-16), the end face of the cup block (K-16) is provided with a groove (K-14), and the outer wall of the connecting post (K-1) is provided with a sliding ball (K-15). The ball bearing (K-15) is slidably fitted inside the groove (K-14), and the connecting cylinder (K-2) has a cavity (K-5) inside. The outer wall of the connecting cylinder (K-2) is slidably provided with a locking post (K-6), and a second elastic element (K-7) is provided between the locking post (K-6) and the connecting cylinder (K-2). The end face of the buffer plate (K-3) is rotatably provided with a swing arm (K-8), the end face of the swing arm (K-8) is provided with a third elastic element (K-9), the outer wall of the swing arm (K-8) is rotatably provided with a connecting rod (K-10), and the inner wall of the connecting rod (K-10) is rotatably provided with a buffer plate (K-11). The buffer plate (K-11) has a sliding column (K-12) on its end face. The sliding column (K-12) is slidably disposed on the inner wall of the buffer cylinder (K-4). A fourth elastic element (K-13) is provided between the sliding column (K-12) and the buffer cylinder (K-4). The third elastic element (K-9) is symmetrically arranged at both ends at the center of the swing arm (K-8). There are also two symmetrical connecting rods (K-10), and both ends of the connecting rods (K-10) are hinged to the swing arm (K-8) and the buffer plate (K-11) respectively. A locking post (K-6) is fixedly provided on one end face of the buffer plate (K-11) perpendicular to the connecting rod (K-10). One end of the bowl block (K-16) is a spherical surface, the groove (K-14) is an annular groove, the two ends of the ball bearing (K-15) are symmetrically opened with two chamfers, one chamfer of the ball bearing (K-15) slides into the groove (K-14), and the second elastic element (K-7) is a spring.

2. The grab bucket with a sway prevention function according to claim 1, characterized in that: It also includes a sealing mechanism (200), which includes a frame (201) disposed on the end face of the bucket body (104), a folding plate (202) slidably disposed inside the frame (201), and a cleaning brush (203) disposed on the end face of the folding plate (202); the frame (201) has a sliding groove (201a) on both sides, a roller (201b) is slidably disposed in the sliding groove (201a), a transmission belt (201c) is also disposed in the sliding groove (201a), the rollers (201b) are symmetrically disposed on both sides of the transmission belt (201c), and a transmission shaft (201b-1) is disposed between the rollers (201b) on both sides.

3. The grab bucket with a sway prevention function according to claim 1, wherein: It also includes a lubrication mechanism (300), which includes an oil hole (301) on the end face of the rotating shaft (103), a dust cover (302) rotatably disposed on the end face of the bucket body (104), lubricating oil (303) disposed in the dust cover (302), and a push rod (304) slidably disposed on the inner wall of the dust cover (302); a cylinder (302a) is rotatably sleeved on the outer wall of the dust cover (302), the cylinder (302a) is connected to the outer wall of the support rod (102), and the oil hole (301) is disposed inside the dust cover (302).

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