Grab bucket device of excavating arm of automatic driving cabin cleaning machine

Abstract

The invention relates to the technical field of grab bucket devices, in particular to a grab bucket device of an excavating arm of an automatic driving cabin cleaning machine. According to the technical scheme, the device comprises a supporting frame and two hoppers installed on the supporting frame, a driving mechanism for driving the two hoppers to synchronously and reversely move is installed on the supporting frame, the device further comprises first sealing plates fixedly installed in the hoppers, extending parts are arranged in the hoppers and located below the sealing plates, notches and ash removal plugging parts are arranged on the extending parts, and the ash removal plugging parts are fixedly installed on the supporting frame. And the ash removal plugging part is mounted on the extension part and comprises a sealing assembly for sealing the notch and an air blowing assembly for removing impurities in the notch. Fine materials in the hopper are effectively prevented from being discharged through the hopper, the materials are prevented from leaking in the transfer process, the leaked materials are prevented from polluting the environment, and a good working environment can be provided.

Description

Technical Field

[0001] The invention relates to the technical field of grab bucket devices, and in particular to a grab bucket device of an excavating arm of an automatic driving tank cleaning machine. Background Art

[0002] The grab device of the digging arm of the autonomous tank cleaning machine is a mechanical component designed for efficient material handling. It is usually installed at the end of the digging arm of the autonomous tank cleaning machine. The grab body is usually made of high-strength steel and has one or more claws that can be opened and closed to grab and move materials. The grab can be opened and closed to grab and hold bulk materials such as coal, ore, sand and gravel. After grabbing the material, the grab can move it to a designated location, such as a transport vehicle, conveyor belt or other storage area.

[0003] When the grab body has two grips, after the two grips grab the material and close, the connection between the two grips is likely to get stuck, causing a gap between the two grips, causing the fine materials inside the grab to flow out easily. During transportation, the outflowing fine materials often form dust, which seriously pollutes the construction environment. In addition, the two grips will wear out after long-term use, causing gaps to appear between the two grips, which in turn causes some leakage when the grab grabs fine materials (such as crushed sand) and the materials are transferred inside the grips. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to propose a grab device for the digging arm of an automatic driving tank cleaning machine.

[0005] The technical solution of the present invention is as follows: a grab device of an excavating arm of an automatic driving tank cleaning machine comprises a support frame and two buckets mounted on the support frame, wherein a driving mechanism for driving the two buckets to move synchronously in opposite directions is mounted on the support frame, and further comprises: A first sealing plate is fixedly installed in the hopper, an extension portion is provided in the hopper and below the first sealing plate, and a notch is provided in the extension portion; A dust cleaning and plugging component is installed on the extension part, and the dust cleaning and plugging component includes a sealing component for sealing the gap and an air blowing component for cleaning impurities inside the gap.

[0006] Optionally, the sealing assembly includes an installation cavity provided in the extension portion, a second sealing plate is slidably installed in the installation cavity, and the sealing assembly also includes a transmission assembly for driving the second sealing plate to slide in the installation cavity.

[0007] Optionally, the transmission assembly includes a first oil barrel rotatably installed in the installation cavity, a first sealing plate is slidably installed in the first oil barrel, a first connecting rod is fixedly installed on the first sealing plate, the first connecting rod passes through one end of the first oil barrel and is rotatably connected to the second sealing plate, and first connecting heads are provided at both ends of the first oil barrel, the first connecting head passes through one side of the extension part and extends to the outside of the extension part.

[0008] Optionally, the transmission assembly also includes a second oil barrel fixedly mounted on the support frame, a second sealing plate is slidably mounted in the second oil barrel, a second connecting rod is fixedly mounted on the second sealing plate, a synchronous plate is fixedly mounted on the second connecting rod, a hydraulic rod is fixedly mounted on the support frame, the output shaft of the hydraulic rod is fixedly connected to the synchronous plate, second connecting heads are provided at both ends of the second oil barrel, an oil pipe is installed on the second connecting head, the other end of the oil pipe is fixedly connected to the first connecting head, and the first oil barrel, the second oil barrel and the oil pipe are all filled with hydraulic medium.

[0009] Optionally, the air blowing assembly includes an air blowing head fixedly mounted on the second sealing plate, an air cavity is provided in the air blowing head, a plurality of self-locking joints connected to the air cavity are fixedly mounted on the air blowing head, and an air nozzle connected to the air cavity is provided on the second sealing plate.

[0010] Optionally, the air blowing assembly also includes an air cylinder fixedly mounted on a support frame, a piston being slidably mounted inside the air cylinder, a plurality of one-way valves being fixedly mounted on the piston, a driving rod being fixedly mounted on the piston, the driving rod being fixedly connected to the synchronization plate, an air pipe being fixedly mounted on the bottom of the air cylinder, and the other end of the air pipe being fixedly connected to the air nozzle.

[0011] Optionally, the self-locking joint includes an air blowing block fixedly mounted on the air blowing head, the air blowing block being provided with a first connecting hole and a second connecting hole which are interconnected, a support rod fixedly mounted in the air blowing block, a plug being slidably mounted on the support rod, a spring fixedly mounted on the plug, and the other end of the spring being fixedly connected to the air blowing block.

[0012] Optionally, the first connecting hole and the second connecting hole are coaxially arranged and pass through the air blowing block, the inner diameter of the first connecting hole is smaller than that of the second connecting hole, the outer diameter of one end of the plug is equal to the inner diameter of the first connecting hole, and the outer diameter of the other end of the plug is larger than the inner diameter of the first connecting hole and smaller than the inner diameter of the second connecting hole.

[0013] Optionally, one of the air blowing heads is provided with protruding blocks on both sides, and the other air blowing head is provided with grooves corresponding to the protruding blocks.

[0014] Optionally, the driving mechanism includes two connecting rods rotatably mounted on both sides of a support frame, the other ends of the connecting rods are rotatably connected to the hopper, an electric hoist is fixedly mounted on the support frame, a lifting plate is mounted on the electric hoist, and the lifting plate is rotatably connected to the hopper.

[0015] In summary, the present invention includes at least the following beneficial technical effects: The present invention can use the dust cleaning and sealing components to make the sealing plate perform preliminary sealing on the material, and then use the sealing component to perform secondary sealing on the fine material passing through the sealing plate, which can effectively improve the sealing effect on the material inside the hopper, effectively prevent the fine material inside the hopper from being discharged through the hopper, prevent the material from leaking during the transportation process, avoid the leaked material from polluting the environment, and provide a good working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure diagram of the grab bucket device Figure 1 ; Figure 2 The structure diagram of the grab bucket device Figure 2 ; Figure 3 The structure diagram of the grab bucket device Figure 3 ; Figure 4 It is a schematic diagram of the structure inside the hopper; Figure 5 for Figure 4 The enlarged view of point A in the middle; Figure 6 for Figure 4 The enlarged view of point B in the middle; Figure 7 Schematic diagram of the connection position of the oil pipe; Figure 8 It is a structural schematic diagram of a self-locking joint; Fig. 9 It is a schematic diagram of the structure of the raised block; Fig.10 Schematic diagram of the groove structure.

[0017] Figure numerals: 1, support frame; 2, hopper; 3, connecting rod; 301, electric hoist; 302, lifting plate; 4, first closing plate; 401, fillet; 402, extension; 403, notch; 404, installation cavity; 405, second closing plate; 406, air blowing head; 407, air cavity; 408, self-locking joint; 4081, air blowing block; 4082, first connecting hole; 4083, second connecting hole; 4084, support rod; 4085, plug; 4086, Spring; 409, air nozzle; 410, first oil barrel; 411, first sealing plate; 412, first connecting rod; 413, first connecting head; 414, second oil barrel; 415, second sealing plate; 416, second connecting rod; 417, second connecting head; 418, oil pipe; 419, air cylinder; 420, piston; 421, one-way valve; 422, drive rod; 423, synchronization plate; 424, hydraulic rod; 425, air pipe; 5, protrusion; 501, groove. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 10 As shown, the grab device of the digging arm of the automatic driving tank cleaning machine proposed in the present invention includes a support frame 1 and two hoppers 2 installed on the support frame 1, and a driving mechanism for driving the two hoppers 2 to move synchronously in the opposite direction is installed on the support frame 1, and the driving mechanism includes two connecting rods 3 rotatably installed on both sides of the support frame 1, and the other end of the connecting rod 3 is rotatably connected with the hopper 2, and an electric hoist 301 is fixedly installed on the support frame 1, and a lifting plate 302 is installed on the electric hoist 301, and the lifting plate 302 can be driven to rise and fall by the electric hoist 301. Since the lifting plate 302 is rotatably connected with the hopper 2 and under the guidance of the connecting rod 3, when the lifting plate 302 rises, it will drive the two hoppers 2 to approach each other, so that the two hoppers 2 are closed, and the materials can be grabbed in this process. When the materials are released, the lifting plate 302 is driven to descend by the electric hoist 301, and the descending lifting plate 302 will drive the two hoppers 2 to move away from each other, so that the materials inside the hoppers 2 are released.

[0020] The grab device of this embodiment also includes a first sealing plate 4 fixedly installed in the hopper 2, and an extension part 402 is provided in the hopper 2 and below the first sealing plate 4, and a notch 403 is provided on the extension part 402. The material above the first sealing plate 4 will be blocked by the first sealing plate 4, so that the material cannot be discharged, and when the first sealing plates 4 are closed to each other, due to the setting of the notch 403, the material between the first sealing plate 4 and the extension part 402 will flow out through the notch 403, and when there is a gap between the two first sealing plates 4, the material passing through the first sealing plate 4 will enter between the first sealing plate 4 and the extension part 402, and the first sealing plate 4 is provided with a rounded corner 401, and when the material is squeezed, the material can be moved upward or downward.

[0021] Furthermore, the grab device of this embodiment also includes a dust cleaning and plugging component, which is installed on the extension part 402, and includes a sealing component for sealing the gap 403 and an air blowing component for cleaning impurities inside the gap 403. When a gap appears between the two first sealing plates 4, the discharged material will be blocked by the sealing component, and under the action of the air blowing component, the impurities inside the gap 403 can be cleaned to prevent the impurities inside the gap 403 from causing the gap 403 to be unable to be completely closed, and then after the material is initially blocked by the first sealing plate 4, the fine material passing through the first sealing plate 4 is secondary sealed by the sealing component, which can effectively improve the blocking effect of the material inside the hopper 2, effectively prevent the fine and broken materials inside the hopper 2 from being discharged through the hopper 2, prevent the leakage of materials during the transportation process, avoid the leakage of materials to pollute the environment, and provide a good working environment.

[0022] In this embodiment, the sealing assembly includes an installation cavity 404 disposed in the extension portion 402 , in which a second sealing plate 405 is slidably installed, and the sealing assembly also includes a transmission assembly for driving the second sealing plate 405 to slide in the installation cavity 404 . When the material is grabbed, the second sealing plate 405 will be located inside the installation cavity 404, and the gap 403 will not be blocked at this time. After the material is taken out and the first sealing plate 405 is closed, the second sealing plate 405 can be pushed out through the transmission assembly, and the gap 403 is blocked by the two second sealing plates 405. The transmission assembly includes a first oil barrel 410 rotatably installed in the installation cavity 404, and a first sealing plate 411 is slidably installed in the first oil barrel 410. A first connecting rod 412 is fixedly installed on the first sealing plate 411. The first connecting rod 412 passes through one end of the first oil barrel 410 and is rotatably connected to the second sealing plate 405. Both ends of the first oil barrel 410 are provided with a first connecting head 413, and the first connecting head 413 passes through one side of the extension portion 402 and extends to the outside of the extension portion 402. When the first sealing plate 411 is pushed to move, the first connecting rod 412 will be driven to move, thereby causing the first connecting rod 412 and the first oil barrel 410 to rotate, and the second sealing plate 405 can be pushed or pulled to move inside the installation cavity 404 .

[0023] Furthermore, the transmission assembly also includes a second oil barrel 414 fixedly mounted on the support frame 1, a second sealing plate 415 is slidably mounted in the second oil barrel 414, a second connecting rod 416 is fixedly mounted on the second sealing plate 415, a synchronization plate 423 is fixedly mounted on the second connecting rod 416, a hydraulic rod 424 is fixedly mounted on the support frame 1, an output shaft of the hydraulic rod 424 is fixedly connected to the synchronization plate 423, second connecting heads 417 are provided at both ends of the second oil barrel 414, an oil pipe 418 is installed on the second connecting head 417, the other end of the oil pipe 418 is fixedly connected to the first connecting head 413, and the first oil barrel 410, the second oil barrel 414 and the oil pipe 418 are all filled with hydraulic medium. When the hydraulic rod 424 drives the synchronous plate 423 to move downward, it will push the second sealing plate 415 to move downward, and the hydraulic medium (the hydraulic medium is a liquid that cannot be compressed in the working environment) inside the second oil barrel 414 will be squeezed by the second sealing plate 415, and the liquid medium can be pressed into the first oil barrel 410, and the first sealing plate 411 can be pushed to move, and then the second sealing plate 405 can be driven to move by the hydraulic rod 424, which can effectively reduce the space occupied by the second sealing plate 405, so that the surface of the hopper 2 remains smooth, which helps to reduce the resistance of the hopper 2 to the material grabbing, and the contact position between the oil pipe 418 and the hopper 2 is protected by an external steel pipe.

[0024] In this embodiment, the air blowing assembly includes an air blowing head 406 fixedly mounted on the second sealing plate 405, an air cavity 407 is provided in the air blowing head 406, a plurality of self-locking joints 408 connected to the air cavity 407 are fixedly mounted on the air blowing head 406, and an air nozzle 409 connected to the air cavity 407 is provided on the second sealing plate 405. When gas is input into the gas nozzle 409, the gas will enter the multiple self-locking joints 408 through the gas cavity 407 and be ejected through the self-locking joints 408. The gas blowing assembly also includes a gas cylinder 419 fixedly mounted on the support frame 1. A piston 420 is slidably mounted in the gas cylinder 419. A plurality of one-way valves 421 are fixedly mounted on the piston 420. The one-way valves 421 allow the gas outside the gas cylinder 419 to flow into the gas cylinder 419 in one direction. A driving rod 422 is fixedly mounted on the piston 420. The driving rod 422 is fixedly connected to the synchronization plate 423. An air pipe 425 is fixedly mounted at the bottom of the gas cylinder 419. The other end of the air pipe 425 is fixedly connected to the gas nozzle 409. When the hydraulic rod 424 descends, the piston 420 will be driven to move downward. The downward piston 420 will squeeze the gas inside the gas cylinder 419, so that the gas inside the gas cylinder 419 enters the gas cavity 407 through the air pipe 425.

[0025] It is worth noting that the self-locking joint 408 includes an air blowing block 4081 fixedly mounted on the air blowing head 406, a first connecting hole 4082 and a second connecting hole 4083 which are interconnected are provided in the air blowing block 4081, a support rod 4084 is fixedly mounted in the air blowing block 4081, a plug 4085 is slidably mounted on the support rod 4084, a spring 4086 is fixedly mounted on the plug 4085, and the other end of the spring 4086 is fixedly connected to the air blowing block 4081. Among them, the first connecting hole 4082 and the second connecting hole 4083 are coaxially arranged and pass through the air blowing block 4081, the inner diameter of the first connecting hole 4082 is smaller than the second connecting hole 4083, the outer diameter of one end of the plug 4085 is equal to the inner diameter of the first connecting hole 4082, and the outer diameter of the other end of the plug 4085 is larger than the inner diameter of the first connecting hole 4082 and smaller than the inner diameter of the second connecting hole 4083. Since the materials are easy to enter the interior of the self-locking joint 408 when the hopper 2 grabs the materials, a structure needs to be provided to prevent the materials from entering the interior of the self-locking joint 408 .

[0026] Through the above structure, when the plug 4085 is not subjected to air blowing pressure, it will block the first connecting hole 4082 under the action of the spring 4086 and cannot continue to move to the left. At this time, the material will not be able to enter the first connecting hole 4082, and when the plug 4085 is affected by the air pressure inside the air cavity 407, the spring 4086 will be stretched to make the plug 4085 detach from the first connecting hole 4082, so that the gas can be ejected through the air blowing block 4081.

[0027] In this embodiment, one of the air blowing heads 406 is provided with protruding blocks 5 on both sides, and the other air blowing head 406 is provided with a groove 501 corresponding to the protruding blocks 5. When the two second sealing plates 405 are combined, the two air blowing heads 406 will be driven to combine, and the protruding blocks 5 will enter the inside of the groove 501. Through the mutual cooperation between the protruding blocks 5 and the groove 501, the fine materials passing through the first sealing plate 4 can be effectively blocked, and under the action of air blowing, the problem of impurities between the protruding blocks 5 and the groove 501 causing the protruding blocks 5 and the groove 501 to fail to combine can be effectively prevented.

[0028] The working principle of this embodiment is as follows: the lifting plate 302 can be driven to rise and fall by the electric hoist 301. When the lifting plate 302 rises, it will drive the two hoppers 2 to approach each other, so that the two hoppers 2 are closed. During this process, the material can be grabbed. When the material is released, the lifting plate 302 is driven to descend by the electric hoist 301. The descending lifting plate 302 will drive the two hoppers 2 to move away from each other, so that the material inside the hopper 2 is released. When a gap appears between the two first sealing plates 4, the discharged material will be blocked by the sealing component, and under the action of the air blowing component, the impurities inside the gap 403 can be cleaned to prevent the presence of impurities inside the gap 403 from causing the gap 403 to be unable to be completely closed. After the material is initially blocked by the first sealing plate 4, the fine material passing through the first sealing plate 4 is secondary sealed by the sealing component, which can effectively improve the blocking effect of the material inside the hopper 2, effectively prevent the fine and broken materials inside the hopper 2 from being discharged through the hopper 2, prevent the leakage of materials during the transportation process, avoid the leaked materials from polluting the environment, and provide a good working environment.

[0029] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A grab device for an excavating arm of an automatic driving tank cleaning machine, comprising a support frame (1) and two hoppers (2) mounted on the support frame (1), wherein a driving mechanism for driving the two hoppers (2) to move synchronously in opposite directions is mounted on the support frame (1), and the driving mechanism is characterized in that: Also includes: A first sealing plate (4) fixedly mounted in the hopper (2), an extension portion (402) being provided in the hopper (2) and below the first sealing plate (4), and a notch (403) being provided in the extension portion (402); A dust cleaning and plugging component is installed on the extension portion (402), and the dust cleaning and plugging component comprises a sealing component for sealing the notch (403) and an air blowing component for cleaning impurities inside the notch (403).

2. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 1, characterized in that: The sealing assembly comprises an installation cavity (404) arranged in the extension portion (402), a second sealing plate (405) being slidably installed in the installation cavity (404), and the sealing assembly further comprises a transmission assembly for driving the second sealing plate (405) to slide in the installation cavity (404).

3. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 2 is characterized in that: The transmission assembly comprises a first oil barrel (410) rotatably mounted in the mounting cavity (404), a first sealing plate (411) being slidably mounted in the first oil barrel (410), a first connecting rod (412) being fixedly mounted on the first sealing plate (411), the first connecting rod (412) passing through one end of the first oil barrel (410) and being rotatably connected to the second sealing plate (405), a first connecting head (413) being provided at both ends of the first oil barrel (410), the first connecting head (413) passing through one side of the extension portion (402) and extending to the outside of the extension portion (402).

4. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 3 is characterized in that: The transmission assembly further comprises a second oil barrel (414) fixedly mounted on the support frame (1), a second sealing plate (415) being slidably mounted in the second oil barrel (414), a second connecting rod (416) being fixedly mounted on the second sealing plate (415), a synchronous plate (423) being fixedly mounted on the second connecting rod (416), a hydraulic rod (424) being fixedly mounted on the support frame (1), an output shaft of the hydraulic rod (424) being fixedly connected to the synchronous plate (423), second connecting heads (417) being provided at both ends of the second oil barrel (414), an oil pipe (418) being mounted on the second connecting head (417), the other end of the oil pipe (418) being fixedly connected to the first connecting head (413), and the first oil barrel (410), the second oil barrel (414) and the oil pipe (418) being filled with hydraulic medium.

5. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 4, characterized in that: The air blowing assembly comprises an air blowing head (406) fixedly mounted on the second sealing plate (405), an air cavity (407) being provided in the air blowing head (406), a plurality of self-locking joints (408) being connected to the air cavity (407) being fixedly mounted on the air blowing head (406), and an air nozzle (409) being connected to the air cavity (407) being provided on the second sealing plate (405).

6. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 5, characterized in that: The air blowing assembly further comprises an air cylinder (419) fixedly mounted on the support frame (1), a piston (420) being slidably mounted in the air cylinder (419), a plurality of one-way valves (421) being fixedly mounted on the piston (420), a driving rod (422) being fixedly mounted on the piston (420), the driving rod (422) being fixedly connected to the synchronization plate (423), an air pipe (425) being fixedly mounted at the bottom of the air cylinder (419), the other end of the air pipe (425) being fixedly connected to the air nozzle (409).

7. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 6, characterized in that: The self-locking joint (408) comprises an air blowing block (4081) fixedly mounted on the air blowing head (406); a first connecting hole (4082) and a second connecting hole (4083) which are interconnected are provided in the air blowing block (4081); a support rod (4084) is fixedly mounted in the air blowing block (4081); a plug (4085) is slidably mounted on the support rod (4084); a spring (4086) is fixedly mounted on the plug (4085); and the other end of the spring (4086) is fixedly connected to the air blowing block (4081).

8. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 7, characterized in that: The first connecting hole (4082) and the second connecting hole (4083) are coaxially arranged and penetrate the air blowing block (4081); the inner diameter of the first connecting hole (4082) is smaller than that of the second connecting hole (4083); the outer diameter of one end of the plug (4085) is equal to the inner diameter of the first connecting hole (4082); and the outer diameter of the other end of the plug (4085) is larger than the inner diameter of the first connecting hole (4082) and smaller than the inner diameter of the second connecting hole (4083).

9. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 8, characterized in that: One of the air blowing heads (406) is provided with raised blocks (5) on both sides, and the other air blowing head (406) is provided with grooves (501) corresponding to the raised blocks (5).

10. The grab bucket device of the digging arm of the automatic driving tank cleaning machine according to claim 9, characterized in that: The driving mechanism comprises two connecting rods (3) rotatably mounted on both sides of a support frame (1), the other ends of the connecting rods (3) being rotatably connected to the hopper (2), an electric hoist (301) being fixedly mounted on the support frame (1), a lifting plate (302) being mounted on the electric hoist (301), and the lifting plate (302) being rotatably connected to the hopper (2).

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