Self-cleaning type double-rope multi-petal grab bucket

Abstract

The invention relates to the technical field of multi-petal grab buckets, in particular to a self-cleaning type double-rope multi-petal grab bucket which comprises a supporting mechanism, an inner scraping mechanism installed on the supporting mechanism and an obstacle removing mechanism installed in the supporting mechanism, and the obstacle removing mechanism is arranged in the middle of the inner scraping mechanism; the supporting mechanism comprises a force arm and a plurality of first chucks installed on the force arm. Existing single-face jaw plates are arranged into the spliced double-face jaw plates, after the built-in half jaw plate firstly stretches into materials, waste steel bars in concrete can be sorted and grabbed, after the external jaw plate is closed, clamped solidified waste can be pressed and cut off, and finally along with operation of a crane, the waste steel bars in the concrete can be sorted and grabbed. When concrete adheres to the inner wall of the external jaw plate, half of the internal jaw plate can shovel away the concrete on the inner wall of the external jaw plate, and at the moment, the structure can prevent sharp objects in materials from abrading the external pressure-resistant jaw plate.

Description

Technical Field

[0001] The invention relates to the technical field of multi-petal grab buckets, in particular to a self-cleaning double-rope multi-petal grab bucket. Background Art

[0002] Multi-jaw grabs grab materials by opening and closing multiple jaws. This type of grab is mainly used for scrap steel grabbing and sorting operations in steel mills, and for sorting and loading and unloading of bulk waste in waste treatment plants and construction sites.

[0003] Different from the sorting of metal materials, the main construction waste on construction sites is the sorting of concrete waste mixed with steel bars. When the multi-petal grab bucket extends into the concrete to sort the discarded steel bars, the sticky concrete waste will adhere to the inner walls of multiple jaw plates. Each working time is long. As the adhered concrete gradually solidifies, it is difficult to remove the solidified concrete using conventional brushes or steel brushes, which will gradually increase the overall weight of the grab bucket and increase the load of the crane.

[0004] In view of the above, the present invention designs a self-cleaning double-rope multi-petal grab to solve the above problems. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is: A self-cleaning double-rope multi-petal grab bucket comprises a support mechanism, an inner scraping mechanism installed on the support mechanism, and an obstacle clearing mechanism installed in the support mechanism, wherein the obstacle clearing mechanism is arranged in the middle of the inner scraping mechanism; The support mechanism includes a force arm and a plurality of first clamps mounted on the force arm, a column head at the bottom of the force arm is provided with evenly distributed assembly grooves, and an external grab bucket is movably mounted in the assembly grooves; The inner scraping mechanism includes an inner wall of an outer grab bucket provided with an inner grab bucket, and a transfer end is fixedly installed on the top of the inner grab bucket; The obstacle removal mechanism comprises a hydraulic rod installed inside the lever arm, a base installed at the bottom end of the hydraulic sub-rod inside the hydraulic rod, and a plurality of scraping components movably installed in a plurality of clamping plates outside the base.

[0007] In a preferred example, the present invention can be further configured as follows: the support mechanism also includes a lever arm sleeve movably mounted on the lever arm rod body and a plurality of second chucks mounted on the bottom of the lever arm sleeve.

[0008] In a preferred example, the present invention can be further configured as follows: the support mechanism further includes a plurality of clamps and a plurality of auxiliary rotation wheels; The clamp is composed of two L-shaped pads, and the pads are fixedly mounted on the column head at the bottom of the lever arm; The auxiliary turning wheel is composed of a shaft rod and a roller, wherein the shaft rod is movably installed in two L-shaped pads, and an inwardly recessed annular groove is provided on the outside of the roller.

[0009] In a preferred example, the present invention can be further configured as follows: the outer grab bucket and the inner grab bucket are both made of stainless steel material, and a slideway adapted to be constrained by the adapter end is provided in the middle of the outer grab bucket.

[0010] In a preferred example, the present invention can be further configured as follows: the inner scraping mechanism further includes a traction frame movably mounted in the second clamp, an elastic support rod assembly movably mounted on the first clamp, and a clamp seat movably mounted on the traction frame; The traction frame is in an arc-shaped structure as a whole, and the bottom end of the traction frame is movably mounted on the adapter end head.

[0011] In a preferred example, the present invention can be further configured as follows: the elastic support rod assembly is composed of a telescopic mother rod, a telescopic sub-rod, and a spring arranged in the telescopic mother rod; The clamping seat is fixedly mounted on the outer end of the telescopic sub-rod.

[0012] In a preferred example, the present invention can be further configured as follows: the obstacle clearing mechanism further includes a compression-resistant clamp fixedly mounted on the hydraulic mother rod in the hydraulic rod; The compression-resistant clamp is composed of a gasket and multiple end tubes, and an extended cable is fixedly installed on the inner wall of the end tube. A gasket is installed on the outside of the extended cable, and the gasket is arranged inside the end tube. A first reinforcing spring is installed between the inner end of the gasket and the inner wall of the end tube.

[0013] In a preferred example, the present invention can be further configured as follows: the obstacle clearing mechanism further includes a plurality of position-limiting cables fixedly mounted on the outer wall of the base and a second reinforcing tension spring arranged outside the position-limiting cables; A buckle is fixedly installed on the bottom end of the position-limiting cable.

[0014] In a preferred example, the present invention can be further configured as follows: the scraping assembly includes a thickened scraper and an end column fixedly installed in the middle of the top end of the thickened scraper, and the ring buckle is movably installed on the end column.

[0015] In a preferred example, the present invention can be further configured as follows: the thickened scraper is in a fan-shaped structure as a whole, and a scraping blade is provided at the bottom end of the thickened scraper.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are: 1. The present invention arranges a double-sided jaw plate spliced ​​with the existing single-sided jaw plate. When the inner half jaw plate is first extended into the interior of the material, the waste steel bars in the concrete can be sorted and grabbed, until the outer jaw plate is closed, the clamped solidified waste can be pressed and cut off, and finally with the operation of the crane, the waste steel bars can be taken out, and when the concrete adheres to the inner wall of the outer jaw plate, the half and inner jaw plate can scrape off the concrete on its inner wall. This structure can prevent sharp objects in the material from causing wear to the outer pressure-resistant jaw plate.

[0017] 2. The present invention arranges a plurality of evenly distributed thickened scrapers at the center of the double jaw plates of the assembled structure. When the grab structure is used, the extended plurality of thickened scrapers can apply pressure and scrape the inner wall of the half jaw plate, and finally the solidified concrete solidified on the inner wall of the half jaw plate can be scraped off, thereby ensuring that the device can be kept clean each time it is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention when used; Figure 2 It is a local dispersion schematic diagram of the present invention; Figure 3 is a schematic diagram of the support mechanism of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 It is a schematic diagram of the internal scraping mechanism of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of dispersion; Figure 7 is a schematic diagram of the obstacle removal mechanism of the present invention; Figure 8 It is a dispersed schematic diagram of the obstacle removal mechanism of the present invention; Fig. 9 For the present invention Figure 8 The enlarged schematic diagram of point B in the middle; Fig.10 For the present invention Figure 8 The enlarged schematic diagram of the center C; Fig.11 For the present invention Figure 8 Enlarged schematic diagram of point D in the middle.

[0019] Reference numerals: 100, support mechanism; 110, lever arm; 120, first clamp; 130, lever arm sleeve; 140, second clamp; 150, assembly groove; 160, fixture; 170, auxiliary rotating wheel; 180, external grab bucket; 190, slideway; 200, inner scraping mechanism; 210, elastic support rod assembly; 220, clamping seat; 230, traction frame; 240, inner grab bucket; 300, obstacle clearing mechanism; 310, hydraulic rod; 320, base; 330, compression-resistant clamp; 340, lengthened cable; 350, gasket; 360, first reinforcing tension spring; 370, limit cable; 380, second reinforcing tension spring; 390, scraper assembly; 391, thickened scraper; 392, end column. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0021] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0022] A self-cleaning double-rope multi-petal grab provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings. Embodiment 1:

[0023] Combination Figure 1-Figure 11 As shown, the present invention provides a self-cleaning double-rope multi-petal grab, comprising a support mechanism 100, an inner scraping mechanism 200 installed on the support mechanism 100, and an obstacle clearing mechanism 300 installed in the support mechanism 100, wherein the obstacle clearing mechanism 300 is arranged in the middle of the inner scraping mechanism 200.

[0024] The supporting mechanism 100 includes a lever arm 110, a first clamp 120, a lever arm sleeve 130, a second clamp 140, an assembly groove 150, a clamp 160, an auxiliary wheel 170, an outer grab 180 and a slideway 190. The inner scraping mechanism 200 includes an elastic support rod assembly 210, a clamp seat 220, a traction frame 230 and an inner grab 240. The obstacle removal mechanism 300 includes a hydraulic rod 310, a base 320, a compression-resistant clamp 330, an extended cable 340, a gasket 350, a first reinforcing tension spring 360, a limiting cable 370, a second reinforcing tension spring 380 and a scraping assembly 390, and the scraping assembly 390 also includes a thickened scraper 391 and an end column 392.

[0025] The support mechanism 100 includes a lever arm 110 and a plurality of first clamps 120 mounted on the lever arm 110. The column head at the bottom of the lever arm 110 is provided with evenly distributed assembly grooves 150, and an external grab 180 movably mounted in the assembly grooves 150. The inner scraping mechanism 200 includes an inner grab 240 disposed on the inner wall of the outer grab 180, and a transfer end is fixedly installed on the top of the inner grab 240; The obstacle removal mechanism 300 includes a hydraulic rod 310 installed inside the lever arm 110 , a base 320 installed at the bottom end of the hydraulic sub-rod inside the hydraulic rod 310 , and a plurality of scraper assemblies 390 movably installed in a plurality of clamping plates outside the base 320 .

[0026] Since multi-petal grabs are subject to different interference factors in different working environments, in construction sites, waste concrete mixed with steel bars is grabbed and sorted by multi-petal grabs. The sticky concrete is easily contaminated and adheres to the inner wall of the grab. When the concrete solidifies, a large amount of solid concrete blocks will accumulate on the inner wall of the grab. It is difficult to clean the solidified concrete with a brush or a steel brush. At the same time, as the amount of solidified concrete increases, the load on the crane will also increase.

[0027] When the device is in use, the outer grab 180 and the inner grab 240 in a superimposed state are provided to replace the existing single-sided grab. When the traction frame 230 is pulled upward by the lever arm sleeve 130, the pulled inner grab 240 will be lifted upward along the inner side of the slideway 190 until the inner grab 240 rises to the maximum height. The outer grab 180 that is assisted in pushing will expand outward until the expanded multiple outer grabs 180 are lowered and initially pressed into the material, and the multiple inner grabs 240 that are actively pushed will be lifted upward. 0 will first enter the interior of the concrete, at which time the steel bars inside the concrete can be initially clamped and gathered, and finally the steel bars will be gripped under the tightening operation of multiple outer grabs 180, as the inner grab 240 and the outer grab 180 withdraw from the concrete until the steel bars are transferred, the extension of the idle inner grab 240 will first remove the solidified materials accumulated on the inner wall of the outer grab 180, and the subsequent pushed and expanded multiple thickened scrapers 391 can further remove the solidified materials on the inner wall of the inner grab 240. Embodiment 2:

[0028] Combination Figure 3-Figure 6 As shown, based on the first embodiment, the support mechanism 100 further includes a plurality of clamps 160 and a plurality of auxiliary rotation wheels 170, a lever sleeve 130 movably mounted on the lever body 110, and a plurality of second clamps 140 mounted at the bottom of the lever sleeve 130; The clamp 160 is composed of two L-shaped pads, and the pads are fixedly mounted on the column head at the bottom of the lever arm 110; The auxiliary rotating wheel 170 is composed of a shaft and a roller, and the shaft is movably installed in two L-shaped pads, and the outer part of the roller is provided with an inwardly concave annular groove; The outer grab bucket 180 and the inner grab bucket 240 are both made of stainless steel, and a slideway 190 adapted to be constrained by the adapter end is provided in the middle of the outer grab bucket 180 .

[0029] By movably installing multiple outer grab buckets 180 inside multiple assembly grooves 150, and opening a slideway 190 in the middle of the outer grab bucket 180, when the arm sleeve 130 is pulled, the pulling frame 230 connected to the second clamp 140 will pull the inner grab bucket 240 to perform stable lifting and lowering activities along the inner side of the slideway 190. At this time, the inner grab bucket 240 attached to the inner wall of the outer grab bucket 180 can repeatedly scrape off the accumulated solidified materials. At the same time, the inner grab bucket 240 that is extended first can also clamp sharp objects in the material to reduce the wear of the sharp objects on the outer grab bucket 180, and save the cost of replacing the grab bucket. Embodiment three:

[0030] Combination Figure 2-Figure 6 As shown, based on the first embodiment, the inner scraping mechanism 200 further includes a traction frame 230 movably mounted in the second clamp 140, an elastic support rod assembly 210 movably mounted on the first clamp 120, and a clamp seat 220 movably mounted on the traction frame 230; The traction frame 230 is an arc-shaped structure as a whole, and the bottom end of the traction frame 230 is movably mounted on the adapter end; The elastic support rod assembly 210 is composed of a telescopic mother rod, a telescopic sub-rod, and a spring arranged in the telescopic mother rod; The clamping seat 220 is fixedly mounted on the outer end of the telescopic sub-rod.

[0031] By providing an elastically stretchable elastic strut assembly 210 between the lever arm 110 and the traction frame 230, when the traction frame 230 is compressed and drives the inner grab 240 to stably rise and fall along the inner wall of the outer grab 180, the traction frame 230 pulled by the elastic strut assembly 210 can prevent the problem of excessive expansion angle from occurring, and at the same time provide a boosting force for the downward descent of the inner grab 240, thereby improving the rapid removal of accumulated solidified materials and increasing the service life of the outer grab 180. Embodiment 4:

[0032] Combination Figure 3-Figure 11 As shown, on the basis of the first embodiment, the obstacle clearing mechanism 300 further includes a compression clamp 330 fixedly mounted on the hydraulic mother rod in the hydraulic rod 310, a plurality of position-limiting cables 370 fixedly mounted on the outer wall of the base 320, and a second reinforcing tension spring 380 arranged outside the position-limiting cables 370; The compression clamp 330 is composed of a gasket and a plurality of end tubes, and an extension cable 340 is fixedly installed on the inner wall of the end tube, a gasket 350 is installed outside the extension cable 340, and the gasket 350 is arranged inside the end tube, and a first reinforcing tension spring 360 is installed between the inner end of the gasket 350 and the inner wall of the end tube; A buckle is fixedly installed at the bottom end of the limiting cable 370; The scraper assembly 390 includes a thickened scraper 391 and an end post 392 fixedly mounted at the middle of the top of the thickened scraper 391, and a ring buckle is movably mounted on the end post 392; The thickened scraper 391 is fan-shaped as a whole, and a scraping edge is provided at the bottom end of the thickened scraper 391 .

[0033] By pressing the extended cable 340 against the roller inside the auxiliary wheel 170, when the hydraulic rod 310 is running, the internal hydraulic sub-rod will drive the base 320 to descend, and the multiple evenly distributed thickened scrapers 391 can descend downward. The extended cable 340 pulled by the extended cable 340 will actively tighten the thickened scraper 391 as the base 320 descends. At this time, the multiple thickened scrapers 391 in a petal structure pulled by the limiting cable 370 and the second reinforcing tension spring 380 can be pressed down along the inner walls of the multiple inner grab buckets 240 until the solidified materials accumulated on the inner walls of the inner grab buckets 240 are quickly cleaned up.

[0034] The working principle and use process of the present invention are as follows: the end column 392 is fixedly installed in the middle of the top of the thickened scraper 391 in advance, and the thickened scraper 391 is movably installed in the two adjacent clamping plates at the bottom of the base 320. At this time, multiple thickened scrapers 391 are evenly distributed on the outside of the base 320. Then, the top of the limiting cable 370 is fixedly installed on the outer wall of the base 320, and the second reinforcing tension spring 380 is set on the outside of the limiting cable 370. At this time, the buckle at the bottom end of the limiting cable 370 is movably installed on the end column 392. The second reinforcing tension spring 380 in the initial state will pull the buckle at the bottom end of the limiting cable 370, and the thickened scraper 391 will be pressed and move forward. Flip up, then fix the compression clamp 330 on the hydraulic mother rod in the hydraulic rod 310, and connect the multiple lengthened cables 340 to the inner walls of the multiple end tubes outside the compression clamp 330, and the gasket 350 is fixedly installed on the outside of the lengthened cables 340. At this time, one end of the first reinforcing tension spring 360 is connected to the gasket 350, and the other end of the gasket 350 is fixedly installed on the inner wall of the end tube. When the hydraulic sub-rod in the hydraulic rod 310 shrinks toward the inside of the hydraulic mother tube, the multiple lengthened cables 340 will relax, and the multiple second reinforcing tension springs 380 will pull the multiple limit cables 370, and the multiple thickened scrapers 391 can expand outward in the shape of petals; When in use, when the lever arm sleeve 130 is pressurized and cooperates with multiple second clamps 140 to pull multiple traction frames 230 upward, the traction frame 230 and the inner grab bucket 240, which are elastically pushed outward by the elastic support rod assembly 210, will first be lifted upward along the inner side of the slideway 190 until the inner grab bucket 240 moves to the top of the slideway 190. The continuously rising traction frame 230 will eventually cooperate with the inner grab bucket 240 to expand the outer grab bucket 180 outward. At this time, the multiple outer grab buckets 180 can expose a caliber sufficient to grab materials. When the lever arm 110 is lowered as a whole until the expanded multiple outer grab buckets 180 are pressed into the interior of the material, the lever arm sleeve 130 descends along the lever arm 110 rod body, and the traction frame 230 will drive the inner grab bucket 240 to quickly descend along the inner side of the slideway 190. At this time, the multiple inner grab buckets 240 will first press into the material. In the material, as the multiple inner grabs 240 shrink, the gravel or sharp stones in the material will first be gathered or broken by the inner grabs 240, at this time, the impact and wear of the sharp objects mixed in the material on the outer grab 180 can be reduced, and the half-section inner grab 240 is used as a buffer platform for sharp objects, thereby improving the efficiency of rapid replacement of the inner grab 240 and increasing the service life of the outer grab 180. When the device grabs the material of concrete mixed with steel bars, the solidified material first adhered to the inner wall of the inner grab 240 can be pressed and removed by the thickened scraper 391, and the inner grab 240 rises and falls along the inner side of the slide 190, and the inner grab 240 in a fitted state can scrape the inner wall of the outer grab 180, thereby ensuring that the outer grab 180 and the inner grab 240 in a superimposed state are always kept clean.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A self-cleaning double-rope multi-petal grab, comprising a support mechanism (100), characterized in that: It also includes an inner scraping mechanism (200) installed on the support mechanism (100) and an obstacle clearing mechanism (300) installed in the support mechanism (100), wherein the obstacle clearing mechanism (300) is arranged in the middle of the inner scraping mechanism (200); The support mechanism (100) comprises a force arm (110) and a plurality of first clamps (120) mounted on the force arm (110); evenly distributed assembly grooves (150) are provided in the column head at the bottom of the force arm (110); and an external grab bucket (180) is movably mounted in the assembly grooves (150); The inner scraping mechanism (200) comprises an inner wall of an outer grab bucket (180) provided with an inner grab bucket (240), and a transfer end is fixedly mounted on the top of the inner grab bucket (240); The obstacle removal mechanism (300) comprises a hydraulic rod (310) installed inside the lever arm (110), a base (320) installed at the bottom end of a hydraulic sub-rod inside the hydraulic rod (310), and a plurality of scraping assemblies (390) movably installed inside a plurality of clamping plates outside the base (320).

2. A self-cleaning double-rope multi-petal grab according to claim 1, characterized in that: The support mechanism (100) further comprises a force arm sliding sleeve (130) movably mounted on the rod body of the force arm (110) and a plurality of second clamps (140) mounted on the bottom of the force arm sliding sleeve (130).

3. A self-cleaning double-rope multi-petal grab according to claim 2, characterized in that: The support mechanism (100) further comprises a plurality of clamps (160) and a plurality of auxiliary rotation wheels (170); The clamp (160) is composed of two L-shaped pads, and the pads are fixedly mounted on the column head at the bottom of the lever arm (110); The auxiliary rotation wheel (170) is composed of a shaft and a roller, wherein the shaft is movably mounted in two L-shaped pads, and an inwardly recessed annular groove is provided on the outside of the roller.

4. A self-cleaning double-rope multi-petal grab according to claim 1, characterized in that: The outer grab bucket (180) and the inner grab bucket (240) are both made of stainless steel, and a slideway (190) adapted to be constrained by the adapter end is provided in the middle of the outer grab bucket (180).

5. The self-cleaning double-rope multi-petal grab bucket according to claim 1, characterized in that: The internal scraping mechanism (200) further comprises a traction frame (230) movably mounted in the second clamp (140), an elastic support rod assembly (210) movably mounted on the first clamp (120), and a clamp seat (220) movably mounted on the traction frame (230); The traction frame (230) is an arc-shaped structure as a whole, and the bottom end of the traction frame (230) is movably mounted on the adapter end head.

6. A self-cleaning double-rope multi-petal grab according to claim 5, characterized in that: The elastic support rod assembly (210) is composed of a telescopic mother rod, a telescopic sub-rod, and a spring arranged in the telescopic mother rod; The clamping seat (220) is fixedly mounted on the outer end of the telescopic sub-rod.

7. The self-cleaning double-rope multi-petal grab bucket according to claim 1, characterized in that: The obstacle clearing mechanism (300) further comprises a compression-resistant clamp (330) fixedly mounted on the hydraulic female rod in the hydraulic rod member (310); The compression-resistant clamp (330) is composed of a gasket and a plurality of end tubes, and an extended cable (340) is fixedly installed on the inner wall of the end tube, a gasket (350) is installed on the outside of the extended cable (340), and the gasket (350) is arranged inside the end tube, and a first reinforcing tension spring (360) is installed between the inner end of the gasket (350) and the inner wall of the end tube.

8. A self-cleaning double-rope multi-petal grab according to claim 7, characterized in that: The obstacle clearing mechanism (300) further comprises a plurality of position-limiting cables (370) fixedly mounted on the outer wall of the base (320) and a second reinforcing tension spring (380) arranged outside the position-limiting cables (370); A buckle is fixedly mounted on the bottom end of the limiting cable (370).

9. The self-cleaning double-rope multi-petal grab bucket according to claim 1, characterized in that: The scraper assembly (390) comprises a thickened scraper (391) and an end column (392) fixedly mounted at the middle of the top end of the thickened scraper (391), and a ring buckle movably mounted on the end column (392).

10. A self-cleaning double-rope multi-petal grab according to claim 9, characterized in that: The thickened scraper (391) is in a fan-shaped structure as a whole, and a scraping blade is provided at the bottom end of the thickened scraper (391).

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