阅读说明：本技术 一种可旋转液压抓斗 (Rotatable hydraulic grab bucket ) 是由 李华广 赵荐富 于 2020-03-20 设计创作，主要内容包括：一种可旋转液压抓斗,包括第一安装箱、第二安装箱、第一油管、夹持组件和遮挡组件；第二安装箱顶部伸入第一安装箱内,第二安装箱内设有液压油箱和液压油泵,第二安装箱底部设有油缸；第一油管连通液压油箱和油缸；油缸底部设有连接柱；颚板与第三安装凸耳连接；第一液压杆两端分别与第一安装凸耳以及第二安装凸耳连接；第二油管连通油缸和第一液压杆；第三油管连通油缸和油槽；第四油管连通油槽和第二液压杆；弧形挡板顶部与第二液压杆底部转动连接,弧形挡板上设有第三滑块；绳索两端与固定块和第三滑块连接；本发明中,能够旋转调整抓料的角度；通过设置遮挡组件,增加对物料的夹持面积,提高了夹持物料的效率,同时降低高空坠物的风险。(A rotatable hydraulic grab bucket comprises a first installation box, a second installation box, a first oil pipe, a clamping assembly and a shielding assembly; the top of the second installation box extends into the first installation box, a hydraulic oil tank and a hydraulic oil pump are arranged in the second installation box, and an oil cylinder is arranged at the bottom of the second installation box; the first oil pipe is communicated with the hydraulic oil tank and the oil cylinder; the bottom of the oil cylinder is provided with a connecting column; the jaw plate is connected with the third mounting lug; two ends of the first hydraulic rod are respectively connected with the first installation lug and the second installation lug; the second oil pipe is communicated with the oil cylinder and the first hydraulic rod; the third oil pipe is communicated with the oil cylinder and the oil groove; the fourth oil pipe is communicated with the oil groove and the second hydraulic rod; the top of the arc-shaped baffle is rotatably connected with the bottom of the second hydraulic rod, and a third sliding block is arranged on the arc-shaped baffle; two ends of the rope are connected with the fixed block and the third sliding block; according to the invention, the angle of material grabbing can be adjusted in a rotating manner; the shielding assembly is arranged, so that the clamping area of the material is increased, the efficiency of clamping the material is improved, and the risk of falling objects is reduced.)

1. A rotatable hydraulic grab bucket is characterized by comprising a first installation box (2), a second installation box (6), a first oil pipe (9), a clamping assembly and a shielding assembly; the clamping assembly comprises a second oil pipe (11), a first hydraulic rod (15) and a jaw plate (16); the shielding assembly comprises a third oil pipe (18), a second hydraulic rod (20), a fourth oil pipe (21), an arc-shaped baffle plate (22), a rope (23) and a fixing block (24);

the first installation box (2) is cylindrical, and a lifting lug (1) is arranged at the top of the first installation box (2); the second installation box (6) is cylindrical, the top of the second installation box (6) penetrates through a through hole formed in the bottom of the first installation box (2) and extends into the first installation box (2), the outer peripheral wall of the second installation box (6) is connected with the wall of the through hole formed in the bottom of the first installation box (2), a hydraulic oil tank (7) and a hydraulic oil pump (8) are arranged in the second installation box (6), and an oil cylinder (10) is arranged at the bottom of the second installation box (6); the hydraulic oil pump (8) is connected with the hydraulic oil tank (7) through a pipeline; the first oil pipe (9) is communicated with the hydraulic oil tank (7) and the inner cavity of the oil cylinder (10); the bottom of the oil cylinder (10) is provided with a connecting column (13); the controller is in control connection with the hydraulic oil pump (8);

a first mounting lug (12) is arranged on the peripheral wall of the bottom of the oil cylinder (10); a third mounting lug (14) is arranged on the peripheral wall of the bottom of the connecting column (13); the jaw plate (16) is connected with the third mounting lug (14) through a pin shaft, and the jaw plate (16) is provided with a second mounting lug (17); two ends of the first hydraulic rod (15) are respectively connected with the first installation lug (12) and the second installation lug (17) in a rotating mode; the second oil pipe (11) is communicated with the cavity of the oil cylinder (10) and the first hydraulic rod (15); the clamping assemblies are arranged in multiple groups, and the multiple groups of clamping assemblies are uniformly distributed in the circumferential direction by taking the connecting column (13) as the center;

an oil groove (161) is arranged in the jaw plate (16), and a fourth mounting lug (19) is arranged on the jaw plate (16); the third oil pipe (18) is communicated with the cavity of the oil cylinder (10) and the oil groove (161); the second hydraulic rod (20) is arranged on the fourth mounting lug (19); the fourth oil pipe (21) is communicated with the oil groove (161) and the second hydraulic rod (20); two groups of inclined arc-shaped baffles (22) are respectively arranged at two sides of the second hydraulic rod (20), the top of each arc-shaped baffle (22) is rotatably connected with the bottom of the second hydraulic rod (20), the bottom of each arc-shaped baffle (22) inclines towards the outer side of the jaw (16), and a third sliding block (221) is arranged on each arc-shaped baffle (22); the fixing block (24) is arranged on the outer surface of the jaw plate (16), and the fixing block (24) is positioned above the arc-shaped baffle plate (22); one end of the rope (23) is connected with the fixed block (24), and the other end of the rope (23) is connected with the third sliding block (221); the shielding assemblies are provided with a plurality of groups, and the plurality of groups of shielding assemblies correspond to the plurality of groups of jaw plates (16) one by one.

2. A rotatable hydraulic grab as claimed in claim 1, further comprising a power means (3) and a rotating shaft (4); the power device (3) is arranged on the inner side of the top of the first mounting box (2); the top of the rotating shaft (4) is in transmission connection with the power device (3), and the bottom of the rotating shaft (4) is connected with the top of the second mounting box (6); the outer peripheral wall of the second installation box (6) is rotationally connected with the wall of a through hole formed in the bottom of the first installation box (2); the controller is connected with the power device (3) in a control way.

3. A rotatable hydraulic grab according to claim 1, wherein the second mounting box (6) is provided with a second annular groove (61) on the outer peripheral wall, and a swivel (62) is arranged in the groove wall of the second annular groove (61); the section of the rotating ring (62) is T-shaped, the rotating ring (62) is matched with the second annular groove (61) to rotate, and the rotating ring (62) extends out of the second annular groove (61) and is connected with the inner peripheral wall of a through hole formed in the bottom of the first mounting box (2).

4. A rotatable hydraulic grab according to claim 1, wherein the inner side of the top of the first mounting box (2) is provided with a plurality of groups of vertical connecting rods (5), and the bottom of the connecting rods (5) is rotatably connected with the top of the second mounting box (6).

5. The rotatable hydraulic grab bucket according to claim 1, wherein a first annular groove (63) is formed in the outer side of the top of the second installation box (6), the cross section of the first annular groove (63) is T-shaped, a sliding block (64) is arranged in the first annular groove (63), the cross section of the sliding block (64) is T-shaped, the sliding block (64) is matched and slides in the first annular groove (63), and the sliding block (64) extends out of the second installation box (6) and is connected with the bottom of the connecting rod (5).

6. A rotatable hydraulic grab as claimed in claim 1, characterised in that the jaws (16) are provided with sets of tines (162) on the inside.

7. A rotatable hydraulic grab as claimed in claim 1, characterized in that the ropes (23) are steel cables and the surface is treated with rust protection.

8. The rotatable hydraulic grab of claim 1, wherein the arc-shaped baffle plate (22) is provided with a connecting rod (222), the end of the connecting rod (222) is provided with a magnet (223), and the magnets (223) on the two groups of connecting rods (222) in one group of shielding assemblies attract each other.

Technical Field

The invention relates to the technical field of grab buckets, in particular to a rotatable hydraulic grab bucket.

Background

The grab bucket is a special tool for grabbing dry and scattered goods by a crane. Two or more openable bucket-shaped jaws are combined together to form an object containing space, the jaws are closed in a material pile during loading, the material is grabbed into the object containing space, the jaws are opened in a suspended state on the material pile during unloading, and the material is scattered on the material pile. When the grab bucket snatchs the object, probably there is the grab bucket and can't fall the material heap smoothly in, make the material that once snatchs reduce, influence efficiency, and there is very big clearance around the object containing space that forms behind the multiunit jaw closure, and less material drops from the clearance easily, not only influences the efficiency that the grab bucket snatchs, and the existence potential safety hazard of simultaneously dropping in the air.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a rotatable hydraulic grab bucket, which can be better attached to materials by rotation, so that more materials can be grabbed, and the working efficiency of the grab bucket is improved; simultaneously, the shielding assembly is arranged in the jaw plates, so that the gaps between the jaw plates of the multiple groups when the grab bucket grabs the material are reduced, the material is reduced to drop, the working efficiency is further improved, and the potential safety hazard caused by falling objects is reduced.

(II) technical scheme

The invention provides a rotatable hydraulic grab bucket which comprises a first installation box, a second installation box, a first oil pipe, a clamping assembly and a shielding assembly, wherein the first installation box is arranged on the first installation box; the clamping assembly comprises a second oil pipe, a first hydraulic rod and a jaw plate; the shielding assembly comprises a third oil pipe, a second hydraulic rod, a fourth oil pipe, an arc-shaped baffle, a rope and a fixing block;

the first installation box is cylindrical, and a lifting lug is arranged at the top of the first installation box; the second installation box is cylindrical, the top of the second installation box penetrates through a through hole formed in the bottom of the first installation box and extends into the first installation box, the outer peripheral wall of the second installation box is connected with the wall of the through hole formed in the bottom of the first installation box, a hydraulic oil tank and a hydraulic oil pump are arranged in the second installation box, and an oil cylinder is arranged at the bottom of the second installation box; the hydraulic oil pump is connected with the hydraulic oil tank through a pipeline; the first oil pipe is communicated with the hydraulic oil tank and the cavity inside the oil cylinder; the bottom of the oil cylinder is provided with a connecting column; the controller is in control connection with the hydraulic oil pump;

a first mounting lug is arranged on the outer peripheral wall of the bottom of the oil cylinder; a third mounting lug is arranged on the outer peripheral wall of the bottom of the connecting column; the jaw plate is connected with the third mounting lug through a pin shaft, and the jaw plate is provided with a second mounting lug; two ends of the first hydraulic rod are respectively connected with the first installation lug and the second installation lug in a rotating manner; the second oil pipe is communicated with the oil cylinder cavity and the first hydraulic rod; the clamping assemblies are arranged in a plurality of groups, and the plurality of groups of clamping assemblies are uniformly distributed in the circumferential direction by taking the connecting column as the center;

an oil groove is formed in the jaw plate, and a fourth mounting lug is arranged on the jaw plate; the third oil pipe is communicated with the oil cylinder cavity and the oil groove; the second hydraulic rod is arranged on the fourth mounting lug; the fourth oil pipe is communicated with the oil groove and the second hydraulic rod; the two groups of inclined arc-shaped baffles are respectively arranged at two sides of the second hydraulic rod, the top of each arc-shaped baffle is rotatably connected with the bottom of the second hydraulic rod, the bottom of each arc-shaped baffle inclines towards the outer side of the jaw plate, and the arc-shaped baffles are provided with third sliding blocks; the fixed block is arranged on the outer surface of the jaw plate and is positioned above the arc-shaped baffle; one end of the rope is connected with the fixed block, and the other end of the rope is connected with the third sliding block; the shielding assemblies are provided with a plurality of groups, and the plurality of groups of shielding assemblies correspond to the plurality of groups of jaw plates one by one.

Preferably, the device also comprises a power device and a rotating shaft; the power device is arranged on the inner side of the top of the first mounting box; the top of the rotating shaft is in transmission connection with the power device, and the bottom of the rotating shaft is connected with the top of the second mounting box; the outer peripheral wall of the second installation box is rotationally connected with the wall of a through hole formed in the bottom of the first installation box; the controller is connected with the power device in a control mode.

Preferably, a second annular groove is formed in the outer peripheral wall of the second installation box, and a rotating ring is arranged in the wall of the second annular groove; the section of the rotating ring is in a T shape, the rotating ring is matched with the second annular groove to rotate, and the rotating ring extends out of the second annular groove and is connected with the inner peripheral wall of the through hole formed in the bottom of the first mounting box.

Preferably, the inner side of the top of the first mounting box is provided with a plurality of groups of vertical connecting rods, and the bottom of each connecting rod is rotatably connected with the top of the second mounting box.

Preferably, the outer side of the top of the second mounting box is provided with a first annular groove, the cross section of the first annular groove is T-shaped, a sliding block is arranged in the first annular groove, the cross section of the sliding block is T-shaped, the sliding block is matched with the first annular groove to slide, and the sliding block extends out of the second mounting box and is connected with the bottom of the connecting rod.

Preferably, the inner side of the jaw plate is provided with a plurality of groups of sharp teeth.

Preferably, the rope is steel cord and the surface is treated to prevent rust.

Preferably, the arc-shaped baffle plate is provided with a connecting rod, the end part of the connecting rod is provided with a magnet, and the magnets on the two groups of connecting rods in the shielding assembly attract each other.

The technical scheme of the invention has the following beneficial technical effects: the angle of grabbing the material can be adjusted in a rotating mode, so that the material is convenient to grab; the shielding assembly is arranged, the containing space formed by the multiple groups of jaw plates is increased or decreased by one circle of horizontal shielding check ring, the clamping area of the material is increased, the material is reduced from falling from the space between the multiple groups of jaw plates, the efficiency of clamping the material is improved, and meanwhile, the risk of falling from the high altitude is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a rotatable hydraulic grab bucket according to the present invention.

Fig. 2 is a sectional view a-a of a rotatable hydraulic grab according to the present invention.

Fig. 3 is an enlarged schematic view at B of the rotatable hydraulic grab according to the present invention.

Fig. 4 is a C-direction view of a rotatable hydraulic grab according to the present invention.

Fig. 5 is a schematic structural diagram of a second mounting box in the rotatable hydraulic grab bucket according to the present invention.

Reference numerals: 1. lifting lugs; 2. a first installation box; 3. a power plant; 4. a rotating shaft; 5. a connecting rod; 6. a second installation box; 61. a second annular groove; 62. rotating the ring; 63. a first annular groove; 64. a slider; 7. a hydraulic oil tank; 8. a hydraulic oil pump; 9. a first oil pipe; 10. an oil cylinder; 11. a second oil pipe; 12. a first mounting lug; 13. connecting columns; 14. a third mounting lug; 15. a first hydraulic lever; 16. a jaw plate; 161. an oil sump; 162. pointed teeth; 17. a second mounting lug; 18. a third oil pipe; 19. a fourth mounting lug; 20. a second hydraulic rod; 21. a fourth oil pipe; 22. an arc-shaped baffle plate; 221. a third slider; 222. a connecting rod; 223. a magnet; 23. a rope; 24. and (5) fixing blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 to 5, the rotatable hydraulic grab bucket provided by the present invention comprises a first installation box 2, a second installation box 6, a first oil pipe 9, a clamping assembly and a shielding assembly; the clamping assembly comprises a second oil pipe 11, a first hydraulic rod 15 and a jaw 16; the shielding assembly comprises a third oil pipe 18, a second hydraulic rod 20, a fourth oil pipe 21, an arc-shaped baffle plate 22, a rope 23 and a fixed block 24;

the first installation box 2 is cylindrical, and the top of the first installation box 2 is provided with a lifting lug 1; the second installation box 6 is cylindrical, the top of the second installation box 6 penetrates through a through hole formed in the bottom of the first installation box 2 and extends into the first installation box 2, the outer peripheral wall of the second installation box 6 is connected with the wall of the through hole formed in the bottom of the first installation box 2, a hydraulic oil tank 7 and a hydraulic oil pump 8 are arranged in the second installation box 6, and an oil cylinder 10 is arranged at the bottom of the second installation box 6; the hydraulic oil pump 8 is connected with the hydraulic oil tank 7 through a pipeline; the first oil pipe 9 is communicated with the hydraulic oil tank 7 and the inner cavity of the oil cylinder 10; the bottom of the oil cylinder 10 is provided with a connecting column 13; the controller is in control connection with the hydraulic oil pump 8;

a first mounting lug 12 is arranged on the peripheral wall of the bottom of the oil cylinder 10; a third mounting lug 14 is arranged on the peripheral wall of the bottom of the connecting column 13; the jaw plate 16 is connected with the third mounting lug 14 through a pin shaft, and the jaw plate 16 is provided with a second mounting lug 17; two ends of the first hydraulic rod 15 are respectively connected with the first mounting lug 12 and the second mounting lug 17 in a rotating manner; the second oil pipe 11 is communicated with the cavity of the oil cylinder 10 and the first hydraulic rod 15; the clamping assemblies are arranged in a plurality of groups, and the plurality of groups of clamping assemblies are uniformly distributed in the circumferential direction by taking the connecting column 13 as the center;

an oil groove 161 is arranged in the jaw plate 16, and a fourth mounting lug 19 is arranged on the jaw plate 16; the third oil pipe 18 communicates the cavity of the oil cylinder 10 and the oil groove 161; the second hydraulic rod 20 is arranged on the fourth mounting lug 19; the fourth oil pipe 21 communicates the oil groove 161 and the second hydraulic rod 20; the two groups of inclined arc-shaped baffles 22 are respectively arranged at two sides of the second hydraulic rod 20, the top of each arc-shaped baffle 22 is rotatably connected with the bottom of the second hydraulic rod 20, the bottom of each arc-shaped baffle 22 inclines towards the outer side of the jaw 16, and a third sliding block 221 is arranged on each arc-shaped baffle 22; the fixing block 24 is arranged on the outer surface of the jaw plate 16, and the fixing block 24 is positioned above the arc-shaped baffle plate 22; one end of the rope 23 is connected with the fixed block 24, and the other end of the rope 23 is connected with the third sliding block 221; the shielding assemblies are provided with a plurality of groups, and the plurality of groups of shielding assemblies correspond to the plurality of groups of jaw plates 16 one by one.

In the invention, the jaw plates 16 are kept in an open state before the material is grabbed, and after the grab bucket is placed at a proper position, the controller controls the hydraulic oil pump 8 to press out oil in the hydraulic oil tank 7, the first hydraulic rod 15 extends to push the jaw plates 16 to contract inwards, a plurality of groups of jaw plates 16 contract simultaneously to form object containing spaces to grab materials, meanwhile, hydraulic oil enters the second hydraulic rod 20 through the third oil pipe 18 and the fourth oil pipe 21, so that the second hydraulic rod 20 is pressed to extend, the top of the arc-shaped baffle plate 22 is pressed down by the second hydraulic rod 20, the arc-shaped baffle plate 22 rotates under the tension of the rope 23, the second hydraulic rod 20 reaches the maximum length, the arc-shaped baffle plate 22 rotates to be vertical to the jaw plates 16, the plurality of groups of arc-shaped baffle plates 22 are horizontally shielded at the periphery of a containing space formed by the jaw plates 16, materials can be shielded, and the materials are reduced from falling among the groups of jaw plates 16; when the material snatchs and has reached the position that needs fall, in controller control hydraulic oil pump 8 withdrawed hydraulic oil tank 7 with hydraulic oil, first hydraulic stem 15 shrink opens jaw 16, and second hydraulic stem 20 shrinks simultaneously, and arc baffle 22 takes place the antiport, withdraws again in the 16 peripheral edges of jaw, and the material falls smoothly. According to the invention, the shielding assembly is arranged, and a circle of horizontal shielding ring is added to the containing space formed by the plurality of groups of jaw plates, so that the clamping area of the material is increased, the material falling from the gap between the plurality of groups of jaw plates is reduced, the efficiency of clamping the material is improved, and the risk of falling from the high altitude is reduced.

In an alternative embodiment, the device further comprises a power device 3 and a rotating shaft 4; the power device 3 is arranged on the inner side of the top of the first installation box 2; the top of the rotating shaft 4 is in transmission connection with the power device 3, and the bottom of the rotating shaft 4 is connected with the top of the second mounting box 6; the outer peripheral wall of the second installation box 6 is rotationally connected with the wall of a through hole formed in the bottom of the first installation box 2; the controller is connected with the power device 3 in a control way; the power device 3 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the second mounting box 6 to rotate, the second mounting box 6 drives the oil cylinder 10 to rotate, and the oil cylinder 10 drives the connecting column 13 to rotate, so that the jaw plate 16 is driven to rotate, and the angle of clamping materials is changed.

In an alternative embodiment, the outer peripheral wall of the second installation box 6 is provided with a second annular groove 61, and a rotary ring 62 is arranged in the groove wall of the second annular groove 61; the section of the rotating ring 62 is in a T shape, the rotating ring 62 is matched with the second annular groove 61 to rotate, and the rotating ring 62 extends out of the second annular groove 61 and is connected with the inner peripheral wall of a through hole formed in the bottom of the first mounting box 2; the mutual rotation between the second installation box 6 and the first installation box 2 is realized.

In an alternative embodiment, a plurality of groups of vertical connecting rods 5 are arranged on the inner side of the top of the first installation box 2, and the bottoms of the connecting rods 5 are rotatably connected with the top of the second installation box 6; the connection strength of the second installation box 6 is enhanced through the multiple groups of connecting rods 5.

In an alternative embodiment, a first annular groove 63 is formed in the outer side of the top of the second installation box 6, the cross section of the first annular groove 63 is in a T shape, a sliding block 64 is arranged in the first annular groove 63, the cross section of the sliding block 64 is in a T shape, the sliding block 64 is matched and slides in the first annular groove 63, and the sliding block 64 extends out of the second installation box 6 and is connected with the bottom of the connecting rod 5; relative rotation between the connecting rod 5 and the second mounting box 6 is achieved.

In an alternative embodiment, the inner side of the jaw 16 is provided with a plurality of sets of tines 162; improve the clamping effect to the material.

In an alternative embodiment, the cords 23 are steel cords and have a surface treated to prevent rust; prevent the rope 23 from rusting and breaking to influence the using effect of the device.

In an alternative embodiment, the arc-shaped baffle 22 is provided with connecting rods 222, the ends of the connecting rods 222 are provided with magnets 223, and the magnets 223 on the two groups of connecting rods 222 in one group of shielding assemblies attract each other; when two sets of arc baffle 22 are withdrawed, through mutual actuation of magnet 223, prevent that arc baffle 22 from taking place to rock.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.