阅读说明：本技术 一种土石方工程施工用抓取装置及其工作方法 (Grabbing device for earthwork construction and working method thereof ) 是由 王大榕 汪建军 辛园庆 王星 王婷 于 2019-12-06 设计创作，主要内容包括：本发明公开一种土石方工程施工用抓取装置及其工作方法,抓取装置包括框架底板、安装板,两个安装板呈长方体状且对称设置,框架底板对称设置在安装板的底部两侧,安装板的上方设置有加固连接机构；圆筒气缸体的活塞杆通过铰链连接有穿过腰形孔的旋转板,旋转板的底部开设有通孔,通孔过盈配合有一旋转轴,旋转轴的两端固定连接有抓取机构；抓取机构包括抓瓜摆臂、抓瓜连板、抓瓜,抓瓜摆臂套接在旋转轴上远离轴承座的外侧,抓瓜摆臂的底部内侧焊接有抓瓜连板,抓瓜连板呈矩形板状,抓瓜连板的内侧通过第二螺栓螺纹连接有若干个平行设置的抓瓜。工作方法包括取样作业和抓取作业。本发明的抓取装置灵活度高、操作方便、安全性高且兼具取样功能。(The invention discloses a grabbing device for earthwork construction and a working method thereof, wherein the grabbing device comprises a frame bottom plate and mounting plates, the two mounting plates are cuboid and symmetrically arranged, the frame bottom plate is symmetrically arranged at two sides of the bottom of the mounting plates, and a reinforcing connecting mechanism is arranged above the mounting plates; a piston rod of the cylinder body is connected with a rotating plate penetrating through the waist-shaped hole through a hinge, a through hole is formed in the bottom of the rotating plate, a rotating shaft is in interference fit with the through hole, and two ends of the rotating shaft are fixedly connected with a grabbing mechanism; snatch the mechanism including grabbing the melon swing arm, grabbing the melon and linking the board, grabbing the melon, grab the melon swing arm and cup joint the outside of keeping away from the bearing frame on the rotation axis, grab the inboard welding in bottom of melon swing arm and grab the melon and link the board, grab the melon and link the board and be rectangular plate-like, grab the melon that the inboard of melon links the board has a plurality of parallel arrangement through second bolt threaded connection and grab the melon. The working method comprises sampling operation and grabbing operation. The gripping device has the advantages of high flexibility, convenience in operation, high safety and a sampling function.)

1. The grabbing device for earthwork engineering construction is characterized by comprising a frame bottom plate (1) and mounting plates (2), wherein the two mounting plates (2) are cuboid and symmetrically arranged, the frame bottom plate (1) is symmetrically arranged on two sides of the bottom of the mounting plates (2), and a reinforcing connecting mechanism is arranged above the mounting plates (2);

the main body of the frame bottom plate (1) is a rectangular plate (11), two convex cylinder mounting plates (12) are symmetrically arranged on the long edge of one side of one rectangular plate (11), and a waist-shaped hole (13) extending along the width direction is formed in the center of the rectangular plate (11); an trunnion seat (14) is fixed above the cylinder mounting plate (12), the trunnion seat (14) is fixedly connected with a cylinder body (16) through a first bolt (15), and a piston rod (17) of the cylinder body (16) is connected with a rotating plate (19) penetrating through the waist-shaped hole (13) through a hinge (18); the bottom of the rotating plate (19) is provided with a through hole, the through hole is in interference fit with a rotating shaft (20), and two ends of the rotating shaft (20) are fixedly connected with a grabbing mechanism;

the reinforcing and connecting mechanism comprises first reinforcing plates (4), second reinforcing plates (5) and connecting plates (6), wherein the first reinforcing plates (4) are welded on the upper surfaces of the two mounting plates (2) at equal intervals, the second reinforcing plates (5) are welded on the upper surfaces of the first reinforcing plates (4), and the connecting plates (6) are welded on the upper surfaces of the second reinforcing plates (5);

the grabbing mechanism comprises a melon grabbing swing arm (31), a melon grabbing connecting plate (32) and a melon grabbing plate (33), the melon grabbing swing arm (31) is sleeved on the outer side, far away from the bearing seat (21), of the rotating shaft (20), the melon grabbing connecting plate (32) is welded on the inner side of the bottom of the melon grabbing swing arm (31), the melon grabbing connecting plate (32) is rectangular plate-shaped, and the inner side of the melon grabbing connecting plate (32) is in threaded connection with a plurality of parallel melon grabbing plates (33) through second bolts (34);

the long-edge top of keeping away from cylinder mounting panel (12) on rectangular plate (11) is connected with cylinder mount pad (8), vertical decurrent guide arm cylinder (9) of cylinder mount pad (8) fixedly connected with, the telescopic shaft tip of guide arm cylinder (9) is equipped with connecting seat (10), the bottom of connecting seat (10) is equipped with sampling plate (43), run through on sampling plate (43) and be equipped with a plurality of sample chamber (44), hollow sampling tube (45) have been held on sample chamber (44).

2. The grabbing device for the earthwork engineering construction according to claim 1, wherein a buffer mounting seat (35) is arranged at the outer side end of the mounting plate (2), a hydraulic buffer (36) is fixedly connected to the buffer mounting seat (35), and a telescopic rod of the hydraulic buffer (36) is fixedly connected with the top of the melon grabbing swing arm (31); the outer side of the melon grabbing swing arm (31) on the rotating shaft (20) is sleeved with a tensioning sleeve (37), and the tensioning sleeve (37) is fastened with the rotating shaft (20) through a plurality of third bolts (38) distributed in a circumferential array mode.

3. The grabbing device for earthwork construction according to claim 1, wherein a swinging rod (39) is arranged on the outer side of the top of the melon-grabbing swinging arm (31), the body of the swinging rod (39) is long and is provided with a pin hole at one end and a circular plate (40) at the other end; the periphery of the circular ring plate (40) is fixedly connected with the melon grabbing swing arm (31) through a plurality of fourth bolts (41) distributed in a circumferential array mode, and an inner cavity space of the circular ring plate (40) is used for accommodating the tensioning sleeve (37); pin holes on the swinging rods (39) which are arranged oppositely are connected through a pin shaft (42).

4. The grabbing device for earthwork construction according to claim 1, wherein the melon grabbing device (33) is bent, and a wear-resistant sleeve (46) is connected to the inner wall of the melon grabbing device (33).

5. The grasping device for earth and stone engineering construction according to claim 1, characterized in that the length of the rotation shaft (20) is greater than the length of the frame bottom plate (1); bearing seats (21) are fixed at the bottoms of two sides of the frame bottom plate (1), and the position of the rotating shaft (20) close to the end part is in sliding connection with the bearing seats (21).

6. The grabbing device for earthwork construction according to claim 1, wherein the first reinforcing plate (4) and the second reinforcing plate (5) are square pipes, the number of the first reinforcing plates (4) is 4-6, and the number of the second reinforcing plates (5) is 2-4.

7. The grabbing device for earthwork construction according to claim 1, wherein the cross section of the connecting plate (6) is rectangular, a cylindrical cavity is formed in the center of the connecting plate, the cylindrical cavity is provided with internal threads, and the internal threads are detachably connected with a threaded column (7).

8. The working method of the grabbing device for earthwork construction is characterized by comprising the following steps of:

s1, sampling operation: the telescopic shaft of the guide rod cylinder (9) vertically extends downwards to drive the connecting seat (10) and the sampling plate (43) to move downwards, and the sampling tube (45) moves downwards to collect soil blocks or stone samples in different areas; the telescopic shaft of the guide rod cylinder (9) vertically contracts upwards to drive the connecting seat (10) and the sampling plate (43) to move upwards, and the sampling tube (45) is taken out to complete sampling operation;

s2, grabbing operation: the cylinder body (16) drives the piston rod (17) to extend, the hinge (18) drives the rotating plate (19) and the rotating shaft (20) to rotate, the rotating shaft (20) drives the melon grabbing swing arm (31) to rotate and swing, and the melon grabbing swing arm (31) drives the melon grabbing connecting plate (32) and the melon grabbing (33) to rotate outwards, so that the melon grabbing (33) is opened outwards;

cylinder cylinder block (16) drive piston rod (17) shrink, and hinge (18) drive rotor plate (19) and rotation axis (20) are rotatory, and rotation axis (20) drive grab melon swing arm (31) rotatory swing, grab melon swing arm (31) drive grab melon even board (32), grab melon (33) internal rotation, snatch the operation to soil block or stone.

Technical Field

The invention relates to the field of constructional engineering construction devices, in particular to a grabbing device for earthwork construction and a working method thereof.

Background

Earthwork engineering is one of the main engineering works in construction engineering, including the aspects of all earthwork sides such as edge digging, filling, transportation, drainage, precipitation and the like. The earthwork has large engineering quantity and complex construction conditions, and is greatly influenced by conditions such as geology, hydrology, meteorology and the like.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a grabbing device for earthwork construction and a working method thereof.

The cylindrical cylinder body is installed by arranging the fastening connection mechanism above the installation plates, arranging the cylinder installation plate on one of the frame bottom plates, and arranging the waist-shaped holes to connect the hinge and the rotating plate, so that the installation space is greatly reduced, and the installation cost is saved; simultaneously, the cylinder body drives the piston rod and the hinge to stretch out and draw back, the hinge drives the rotating plate and the rotating shaft to rotate, the grabbing mechanism is further driven to rotate so as to grab the stones and the soil blocks, and the grabbing flexibility of the grabbing mechanism driven by the cylinder is high, so that the operation is convenient.

Through first gusset plate, second gusset plate transversely, vertically share the gravity of snatching the mechanism, threaded post and lift piston rod threaded connection on the connecting plate simultaneously for this grabbing device is taking a sample, is snatching more firm when operating, connects more stably. Be equipped with the buffer mount pad through the outside end at the mounting panel, buffer mount pad fixedly connected with hydraulic buffer, hydraulic buffer's telescopic link and the top fixed connection who grabs the melon swing arm for grab the melon swing arm and drive and grab the melon even board, grab the melon and snatch when the operation, hydraulic buffer buffering is grabbed the rotatory action and the stone soil block of melon swing arm and is to grabbing the striking effect of melon, has improved the security of snatching the operation.

When the telescopic shaft through the guide rod cylinder extends in the vertical direction, the connecting seat and the sampling plate are driven to move downwards, so that the sampling tube collects soil blocks or stone samples in different areas downwards, workers can analyze the soil blocks or stone components in different positions conveniently, and construction according to soil components is performed conveniently and subsequently.

The purpose of the invention can be realized by the following technical scheme:

the invention provides a grabbing device for earthwork construction, which comprises a frame bottom plate and mounting plates, wherein the two mounting plates are cuboid and symmetrically arranged, the frame bottom plate is symmetrically arranged at two sides of the bottom of each mounting plate, and a reinforcing connecting mechanism is arranged above each mounting plate;

the main body of the frame bottom plate is a rectangular plate, two convex cylinder mounting plates are symmetrically arranged on the long edge of one side of one rectangular plate, and a waist-shaped hole extending along the width direction is formed in the center of the rectangular plate; an trunnion seat is fixed above the cylinder mounting plate, the trunnion seat is fixedly connected with a cylinder body through a first bolt, and a piston rod of the cylinder body is connected with a rotating plate penetrating through a waist-shaped hole through a hinge; the bottom of the rotating plate is provided with a through hole, the through hole is in interference fit with a rotating shaft, and two ends of the rotating shaft are fixedly connected with a grabbing mechanism;

the reinforcing and connecting mechanism comprises first reinforcing plates, second reinforcing plates and connecting plates, wherein the first reinforcing plates are welded on the upper surfaces of the two mounting plates at equal intervals, the second reinforcing plates are welded on the upper surfaces of the first reinforcing plates, and the connecting plates are welded on the upper surfaces of the second reinforcing plates;

the grabbing mechanism comprises a melon grabbing swing arm, a melon grabbing connecting plate and a melon grabbing arm, the melon grabbing swing arm is sleeved on the outer side, far away from the bearing seat, of the rotating shaft, the melon grabbing connecting plate is welded on the inner side of the bottom of the melon grabbing swing arm and is rectangular plate-shaped, and the inner side of the melon grabbing connecting plate is connected with a plurality of parallel melon grabbing plates through second bolt threads;

the long limit top of keeping away from the cylinder mounting panel on the rectangular plate is connected with the cylinder mount pad, the vertical decurrent guide arm cylinder of cylinder mount pad fixedly connected with, and the telescopic shaft tip of guide arm cylinder is equipped with the connecting seat, and the bottom of connecting seat is equipped with the sampling board, runs through on the sampling board to be equipped with a plurality of sample chamber, has held hollow sampling tube on the sample chamber.

As a further scheme of the invention, a buffer mounting seat is arranged at the outer side end of the mounting plate, a hydraulic buffer is fixedly connected to the buffer mounting seat, and a telescopic rod of the hydraulic buffer is fixedly connected with the top of the melon grabbing swing arm; the outer side of the melon grabbing swing arm on the rotating shaft is sleeved with a tensioning sleeve, and the tensioning sleeve is fastened with the rotating shaft through a plurality of third bolts distributed in a circumferential array.

As a further scheme of the invention, an oscillating rod is arranged on the outer side of the top of the melon grabbing oscillating arm, the main body of the oscillating rod is in a strip shape, one end of the oscillating rod is provided with a pin hole, and the other end of the oscillating rod is provided with a circular ring plate; the periphery of the circular ring plate is fixedly connected with the melon grabbing swing arm through a plurality of fourth bolts distributed in a circumferential array mode, and an inner cavity space of the circular ring plate is used for accommodating the tensioning sleeve; the pin holes on the swing rods which are arranged oppositely are connected through a pin shaft.

As a further scheme of the invention, the melon grabbing device is bent, and the inner wall of the melon grabbing device is detachably connected with a wear-resistant sleeve.

As a further aspect of the present invention, the length of the rotating shaft is greater than the length of the frame bottom plate; bearing seats are fixed at the bottoms of the two sides of the frame bottom plate, and the position of the rotating shaft close to the end part is in sliding connection with the bearing seats.

As a further scheme of the invention, the first reinforcing plates and the second reinforcing plates are square tubes, the number of the first reinforcing plates is 4-6, and the number of the second reinforcing plates is 2-4.

As a further scheme of the invention, the section of the connecting plate is rectangular, a cylindrical cavity is formed in the center of the connecting plate, the cylindrical cavity is provided with internal threads, and the internal threads are detachably connected with threaded columns.

The invention also provides a working method of the gripping device for earthwork engineering construction, which comprises the following steps:

s1, sampling operation: the telescopic shaft of the guide rod cylinder extends vertically downwards to drive the connecting seat and the sampling plate to move downwards, and the sampling tube moves downwards to collect soil blocks or stone samples in different areas; the telescopic shaft of the guide rod cylinder vertically contracts upwards to drive the connecting seat and the sampling plate to move upwards, and the sampling tube is taken out to complete sampling operation;

s2, grabbing operation: the cylinder body drives the piston rod to extend, the hinge drives the rotating plate and the rotating shaft to rotate, the rotating shaft drives the melon grabbing swing arm to rotate and swing, and the melon grabbing swing arm drives the melon grabbing connecting plate and the melon grabbing plate to rotate outwards, so that the melon grabbing plate is opened outwards;

the cylinder block drives the piston rod shrink, and the hinge drives rotor plate and rotation axis rotation, and the rotation axis drives and grabs the rotatory swing of melon swing arm, grabs the melon swing arm and drives and grabs the melon even board, grab the melon inward rotation, snatchs the operation to soil block or stone.

The invention has the beneficial effects that:

1. the grabbing device for earthwork engineering construction uses the frame bottom plates and the mounting plates as main body mounting structures, the reinforced connecting mechanism is arranged above the mounting plates, the cylinder mounting plate is arranged on one of the frame bottom plates to mount the cylinder body, and the waist-shaped holes are arranged to connect the hinges and the rotating plates, so that the mounting space is greatly reduced, and the mounting cost is saved; simultaneously, the cylinder body drives the piston rod and the hinge to stretch out and draw back, the hinge drives the rotating plate and the rotating shaft to rotate, the grabbing mechanism is further driven to rotate so as to grab the stones and the soil blocks, and the grabbing flexibility of the grabbing mechanism driven by the cylinder is high, so that the operation is convenient.

2. The structural design of the fastening connection mechanism shares the gravity of the grabbing mechanism transversely and longitudinally through the first reinforcing plate and the second reinforcing plate, and meanwhile, the threaded column on the connecting plate is in threaded connection with the lifting piston rod, so that the grabbing device is more stable in sampling and grabbing operation and more stable in connection.

3. Be equipped with the buffer mount pad through the outside end at the mounting panel, buffer mount pad fixedly connected with hydraulic buffer, hydraulic buffer's telescopic link and the top fixed connection who grabs the melon swing arm for grab the melon swing arm and drive and grab the melon even board, grab the melon and snatch when the operation, hydraulic buffer buffering is grabbed the rotatory action and the stone soil block of melon swing arm and is to grabbing the striking effect of melon, has improved the security of snatching the operation.

4. The tensioning sleeve is sleeved on the outer side of the rotating shaft, the tensioning sleeve is fastened with the rotating shaft through a third bolt, and the circular ring plate is fixedly connected with the melon grabbing swing arm through a fourth bolt, so that the tensioning sleeve, the rotating shaft and the melon grabbing swing arm are connected more tightly, and the melon grabbing swing arm is good in flexibility during grabbing operation; set up the swinging arms through the top outside grabbing the melon swing arm, the periphery of ring board through a plurality of fourth bolt that the circumference array distributes with grab melon swing arm fixed connection, pinhole on the swinging arms of relative setting is through selling hub connection for when the rotation axis drives and grabs the swing arm swing of melon, the one end of the swinging arms of relative setting is around selling hub up-and-down motion, the vibrations that produce when further buffering is grabbed the motion of melon swing arm, has improved the bradyseism performance.

5. During the sample operation, when the telescopic shaft of guide arm cylinder extended in vertical direction, drive connecting seat, sampling plate downstream for the sampling tube collects the clod or the stone sample of different regions downwards, and the staff of being convenient for analyzes the clod or the stone composition of different positions, and convenient follow-up is under construction according to soil property composition.

Drawings

The invention will be further described with reference to the accompanying drawings.

Fig. 1 is a three-dimensional view of the gripping device for earthwork construction of the present invention.

Fig. 2 is a front view of the gripping device for earthwork construction of the present invention.

Fig. 3 is a bottom view of the gripping device for earthwork construction of the present invention.

Fig. 4 is a front sectional view of the grasping apparatus for earth and stone engineering construction of the present invention.

FIG. 5 is a three-dimensional view of the gripping device for earthwork construction of the present invention after the reinforced connection structure is removed.

Fig. 6 is a partial enlarged view of the invention at a in fig. 1.

Fig. 7 is a schematic structural view of the frame bottom plate of the present invention.

In the figure: 1. a frame floor; 2. mounting a plate; 4. a first reinforcing plate; 5. a second reinforcing plate; 6. a connecting plate; 7. a threaded post; 8. a cylinder mounting seat; 9. a guide rod cylinder; 10. a connecting seat; 11. a rectangular plate; 12. a cylinder mounting plate; 13. a waist-shaped hole; 14. a trunnion seat; 15. a first bolt; 16. a cylindrical cylinder block; 17. a piston rod; 18. a hinge; 19. a rotating plate; 20. a rotating shaft; 21. a bearing seat; 31. grabbing a melon swing arm; 32. grabbing the melon connecting plate; 33. grabbing the melons; 34. a second bolt; 35. a bumper mount; 36. a hydraulic buffer; 37. a tensioning sleeve; 38. a third bolt; 39. a swing lever; 40. a circular ring plate; 41. a fourth bolt; 42. a pin shaft; 43. a sampling plate; 44. a sampling cavity; 45. a sampling tube; 46. a wear-resistant sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, this embodiment provides a grabbing device for earthwork engineering construction for sampling and grabbing of stones and earth blocks in the earthwork construction process, including a frame bottom plate 1 and mounting plates 2, the two mounting plates 2 are rectangular and symmetrically arranged, the frame bottom plate 1 is symmetrically arranged at two sides of the bottom of the mounting plates 2, and an additional connecting mechanism is arranged above the mounting plates 2. The main body of the frame bottom plate 1 is a rectangular plate 11, wherein two convex cylinder mounting plates 12 are symmetrically arranged on the long edge of one side of one rectangular plate 11, and a waist-shaped hole 13 extending along the width direction is arranged at the central part of the rectangular plate 11. An trunnion seat 14 is fixed above the cylinder mounting plate 12, the trunnion seat 14 is fixedly connected with a cylinder block 16 through a first bolt 15, and a piston rod 17 of the cylinder block 16 is connected with a rotating plate 19 which passes through the waist-shaped hole 13 through a hinge 18. The bottom of the rotating plate 19 is provided with a through hole, the through hole is in interference fit with a rotating shaft 20, and two ends of the rotating shaft 20 are fixedly connected with a grabbing mechanism. Wherein the length of the rotating shaft 20 is greater than that of the frame bottom plate 1. Bearing seats 21 are fixed at the bottoms of two sides of the frame bottom plate 1, and the position of the rotating shaft 20 close to the end part is connected with the bearing seats 21 in a sliding manner.

The frame bottom plates 1 and the mounting plates 2 are used as main structures, the reinforcing connection mechanism is arranged above the mounting plates 2, the cylinder mounting plate 12 is arranged on one of the frame bottom plates 1 to install the cylinder body 16, and the waist-shaped hole 13 is arranged to connect the hinge 18 and the rotating plate 19, so that the mounting space is greatly reduced, and the assembly cost is saved; meanwhile, the cylinder body 16 drives the piston rod 17 and the hinge 18 to extend and retract, the hinge 18 drives the rotating plate 19 and the rotating shaft 20 to rotate, and the grabbing mechanism is further driven to rotate so as to grab stones and soil blocks.

Specifically, the reinforcing and connecting mechanism comprises a first reinforcing plate 4, a second reinforcing plate 5 and a connecting plate 6, wherein the first reinforcing plates 4 are equidistantly welded on the upper surfaces of the two mounting plates 2, the second reinforcing plate 5 is welded on the upper surface of the first reinforcing plate 4, and the connecting plate 6 is welded on the upper surface of the second reinforcing plate 5. The first reinforcing plate 4 and the second reinforcing plate are square pipes, the number of the first reinforcing plate 4 is 4-6, the number of the second reinforcing plate is 2-4, the cross section of the connecting plate 6 is rectangular, a cylindrical cavity is formed in the center of the connecting plate, the cylindrical cavity is provided with internal threads, the internal threads are detachably connected with a threaded column 7, and the threaded column 7 is in threaded connection with a lifting piston rod of a crane or a crane. Of course, the design may also be performed according to the specific structure of the tail end of the lifting piston rod of the crane or the crane, for example, when the tail end of the lifting piston rod is in an external thread structure, an internal thread may be formed on the connecting plate 6 for installation, or a hinge may be formed on the connecting plate 6 for connection with the lifting piston rod. When the crane or the crane drives the gripping device to move to the position where the earthwork construction is needed, the sampling and gripping work can be carried out.

Add the structural design who links up coupling mechanism, 4 equidistance welding of the first gusset plate of a plurality of are at the upper surface of two mounting panels 2, the welding of second gusset plate 5 is at the upper surface of first gusset plate 4, the welding of connecting plate 6 is at the upper surface of second gusset plate 5, make first gusset plate 4, second gusset plate 5 is horizontal, vertically share the gravity of snatching the mechanism, simultaneously threaded post 7 and the lifter piston pole threaded connection on the connecting plate, make this grabbing device take a sample, it is more firm when snatching the operation, it is more stable to connect.

Snatch the mechanism including grabbing melon swing arm 31, grabbing melon even board 32, grabbing melon 33, grab melon swing arm 31 and cup joint the outside of keeping away from bearing frame 21 on rotation axis 20, grab the inboard welding in bottom of melon swing arm 31 and grab melon even board 32, grab melon even board 32 and be rectangular plate-like, grab melon even inboard through second bolt 34 threaded connection have a plurality of parallel arrangement grab melon 33.

The outside end of mounting panel 2 is equipped with buffer mount pad 35, and buffer mount pad 35 fixedly connected with hydraulic buffer 36, the telescopic link of hydraulic buffer 36 and the top fixed connection of grabbing melon swing arm 31. The outer side of the melon grabbing swing arm 31 on the rotating shaft 20 is sleeved with a tensioning sleeve 37, and the tensioning sleeve 37 is fastened with the rotating shaft 20 through a plurality of third bolts 38 distributed in a circumferential array.

Grab the melon swing arm 31 the top outside and be equipped with swinging arms 39, swinging arms 39's main part is rectangular form and one end is equipped with the pinhole, and the other end is equipped with ring board 40, and a plurality of fourth bolt 41 that the circumference of ring board 40 distributed through the circumference array with grab melon swing arm 31 fixed connection, ring board 40's inner chamber space holding tight cover 37 that rises. Pin holes on the oppositely arranged swing levers 39 are connected by a pin 42. Grab melon 33 and be the form of buckling, grab melon 33's inner wall and can dismantle and be connected with wear-resisting cover 46. Wear-resisting cover 46 card with on grabbing the inner wall of melon 33, above arranged wear-resisting decorative pattern, increased the frictional force of grabbing melon 33 and soil block stone, avoid snatching the unrestrained of in-process.

Be equipped with buffer mount pad 35 through the outside end at mounting panel 2, buffer mount pad 35 fixedly connected with hydraulic buffer 36, hydraulic buffer 36's telescopic link and the top fixed connection who grabs melon swing arm 31 for it drives and grabs melon even board 32 to grab melon swing arm 31, when grabbing melon 33 and snatching the operation, hydraulic buffer 36 cushions and grabs melon swing arm 31's rotary motion and the striking effect of stone soil block to grabbing melon 33, the security of snatching the operation has been improved. Through cup jointing tight cover 37 that rises in the rotation axis 20 outside, tight cover 37 that rises fastens with rotation axis 20 through third bolt 38, and ring plate 40 is through fourth bolt 41 and grab melon swing arm 31 fixed connection for tight cover, rotation axis, the connection of grabbing between the melon swing arm are tighter, and the flexibility of grabbing the melon swing arm when snatching the operation is good. Set up swinging arms 39 through the top outside grabbing melon swing arm 31, a plurality of fourth bolt 41 that the circumference of ring plate 40 distributes through the circumference array with grab melon swing arm 31 fixed connection, pinhole on the swinging arms 39 that set up relatively is connected through round pin axle 42, when making the rotation axis drive grab melon swing arm 31 swing, the one end of the swinging arms that set up relatively is around round pin axle 42 up-and-down motion, further the buffering is grabbed the vibrations that produce when melon swing arm moves, the bradyseism performance has been improved.

The long limit top of keeping away from cylinder mounting panel 12 on the rectangular plate 11 is connected with cylinder mount pad 8, and the vertical decurrent guide arm cylinder 9 of 8 fixedly connected with of cylinder mount pad, the telescopic shaft tip of guide arm cylinder 9 are equipped with connecting seat 10, and the bottom of connecting seat 10 is equipped with sampling plate 43, runs through on the sampling plate 43 and is equipped with a plurality of sample chamber 44, holds hollow sampling tube 45 on the sample chamber 44. When the telescopic shaft of the guide rod cylinder 9 extends in the vertical direction, the connecting seat 10 and the sampling plate 43 are driven to move downwards, so that the sampling tube 45 collects soil blocks or stone samples in different areas downwards, workers can analyze the soil blocks or stone components in different positions conveniently, and the follow-up construction process is facilitated.

The working method of the gripping device for earthwork construction in the embodiment is as follows:

s1, sampling operation: the telescopic shaft of the guide rod cylinder 9 vertically extends downwards to drive the connecting seat 10 and the sampling plate 43 to move downwards, and the sampling tube 45 moves downwards to collect soil blocks or stone samples in different areas; the telescopic shaft of the guide rod cylinder 9 vertically contracts upwards to drive the connecting seat 10 and the sampling plate 43 to move upwards, and the sampling tube 45 is taken out to complete sampling operation; the soil blocks or stone samples in different areas collected by the sampling tube are convenient for workers to analyze the soil blocks or stone components in different positions, and the follow-up construction operation is convenient to be carried out according to the soil property condition and the rock stratum distribution condition of the construction section.

S2, grabbing operation: the cylinder body 16 drives the piston rod 17 to extend, the hinge 18 drives the rotating plate 19 and the rotating shaft 20 to rotate, the rotating shaft 20 drives the melon grabbing swing arm 31 to rotate and swing, and the melon grabbing swing arm 31 drives the melon grabbing connecting plate 32 and the melon grabbing 33 to rotate outwards, so that the melon grabbing 33 is opened outwards;

the cylinder block 16 drives the piston rod 1718 shrink, and hinge 18 drives rotor plate 19 and rotation axis 20 rotatory, and rotation axis 20 drives and grabs the rotatory swing of melon swing arm 31, grabs melon swing arm 31 and drives and grabs even board 32 of melon, grabs melon 33 internal rotation, snatchs the operation to soil block or stone. Wherein, hydraulic buffer 36's telescopic link and the top fixed connection who grabs melon swing arm 31 for when grabbing melon swing arm 31 and driving and grab melon even board 32, grab melon 33 and snatch the operation, hydraulic buffer 36 cushions and grabs melon swing arm 31's rotary motion and stone soil block to grabbing melon 33's striking effect, has improved the security of snatching the operation.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.