CN209854799U - Device for grabbing materials - Google Patents

Abstract

The utility model discloses a device for grabbing materials, which comprises 2 fixed pins, 1 supporting disc and 2 groups of grabbing mechanisms, wherein 2 fixed pins are connected with an external excavator moving arm; the supporting disc is respectively connected with the 2 fixing pins, and the supporting disc is vertical to the fixing pins; 2 groups of grabbing mechanisms are respectively connected with the supporting disc so as to grab the materials through the 2 groups of grabbing mechanisms, and the distribution position of each group of grabbing mechanisms on the supporting disc corresponds to the distribution position of 1 fixing pin on the supporting disc; every 1 group snatch the mechanism and contain a plurality of and snatch the piece, and every 1 group in snatching the mechanism a plurality of snatch the piece and use corresponding 1 the fixed pin is the center and is the symmetric distribution. The utility model discloses reach and to shorten the process of grabbing the material, raise the efficiency, reduce cost's technological effect.

Description

Device for grabbing materials

Technical Field

The utility model belongs to the technical field of engineering machine tool, in particular to snatch device to material.

Background

The excavator is a machine which excavates materials higher or lower than a bearing surface by using a bucket or other tools, or grabs the materials by using an excavator grab bucket and loads the materials into a transport vehicle or unloads the materials to a stockyard. The materials excavated or grabbed by the excavator mainly comprise waste metals, soil and the like. An excavator has become one of the most important engineering machines in engineering construction

In the prior art, the scrap loading and unloading technology applied to the excavator is generally that workers manually pick up the scrap on site, move the scrap to a designated position, for example, on a scrap site, and manually lift the scrap to a transport vehicle or unload the scrap to a storage yard after the scrap is picked up by a plurality of workers. However, for the short materials placed on the site, the worker is difficult to move to the designated position quickly, so that the material grabbing process is slow, the efficiency is low, and the cost is high.

In conclusion, the prior art applied to the excavator for loading and unloading the scrap steel has the technical problems of slow material grabbing process, low efficiency and high cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that in the current technique of being applied to the machine of digging loading and unloading steel scrap, there is the material process of grabbing slowly, and is inefficient, with high costs technical problem.

In order to solve the technical problem, the utility model provides a device that snatchs the material, the device that snatchs the material includes: 2 fixed pins, wherein the 2 fixed pins are respectively connected with an external excavator moving arm; 1 supporting disk, wherein 1 supporting disk is respectively connected with 2 fixing pins, and the supporting disk is vertical to each fixing pin; 2 groups of grabbing mechanisms, wherein the 2 groups of grabbing mechanisms are respectively connected with the supporting disc so as to grab the materials through the 2 groups of grabbing mechanisms, and the distribution position of each group of grabbing mechanisms on the supporting disc corresponds to the distribution position of 1 fixing pin on the supporting disc; every 1 group snatch the mechanism and contain a plurality of and snatch the piece, and every 1 group in snatching the mechanism a plurality of snatch the piece and use 1 that corresponds the fixed pin is the symmetric distribution as the center, a plurality is just the integer.

Optionally, the central point connecting line of 2 fixing pins and the central point of the supporting disk are on the same straight line.

Optionally, each 1 group of the gripping mechanism comprises 4 gripping members; 4 grab with the support disc forms 4 connection fulcrums, 4 connection fulcrums are in the distribution position and the 1 of support disc the fixed pin is in the distribution position of support disc corresponds, just 4 connection fulcrums use the fixed pin is central dot symmetric distribution on the support disc.

Optionally, the gripping member includes: the connecting pin is connected with the supporting disk, and the supporting disk is positioned between the fixing pin and the connecting pin; the driving piece is connected with the connecting pin, and the connecting pin is positioned between the supporting disk and the driving piece; the grab bucket connecting piece is connected with the driving piece, and the driving piece is positioned between the connecting pin and the grab bucket connecting piece; the fastening disc is provided with fastening points and is connected with the grab bucket connecting piece through the fastening points; the bucket petal connecting piece is connected with the fastening disc and the grab bucket connecting piece; the grab bucket flap is hinged to the grab bucket flap connecting piece, and the grab bucket flap connecting piece is located between the fastening disc and the grab bucket flap.

Optionally, in each 1 group of the grabbing mechanisms, the fastening discs of any 2 grabbing pieces are on the same horizontal plane.

Optionally, in the 2 groups of the grabbing mechanisms, the fastening discs of any 2 grabbing pieces are on the same horizontal plane.

Has the advantages that:

the utility model provides a device that snatchs material is connected through support disc and fixed pin, supports disc and fixed pin mutually perpendicular. The 2 group grabbing mechanisms are respectively connected with the supporting disc, so that the supporting disc fixes the 2 group grabbing mechanisms, the excavator drives the fixing pin to move, the fixing pin moves to drive the supporting disc to move together, and the supporting disc moves to drive the 2 group grabbing mechanisms to move together. When the material to be grabbed is moved to the position above the material to be grabbed, grabbing the material by a plurality of grabbing pieces arranged on the 2 groups of grabbing mechanisms; thereby reached and to have shortened the process of grabbing the material, raise the efficiency, reduce cost's technical effect.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a device for grabbing materials according to an embodiment of the present invention;

fig. 2 is a top view of the overall structure of the device for gripping material provided in fig. 1.

Detailed Description

The utility model provides a device that snatchs material is connected through support disc and fixed pin, supports disc and fixed pin mutually perpendicular. The 2 group grabbing mechanisms are respectively connected with the supporting disc, so that the supporting disc fixes the 2 group grabbing mechanisms, the excavator drives the fixing pin to move, the fixing pin moves to drive the supporting disc to move together, and the supporting disc moves to drive the 2 group grabbing mechanisms to move together. When the material to be grabbed is moved to the position above the material to be grabbed, grabbing the material by a plurality of grabbing pieces arranged on the 2 groups of grabbing mechanisms; thereby reached and to have shortened the process of grabbing the material, raise the efficiency, reduce cost's technical effect.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art belong to the protection scope of the present invention; the "and/or" keyword "referred to in this embodiment represents sum or two cases, in other words, a and/or B mentioned in the embodiment of the present invention represents two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, representing: only A does not include B; only B does not include A; including A and B.

Also, in embodiments of the invention, when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.

Please refer to fig. 1-2, fig. 1 is a schematic diagram of an overall structure of a device for grabbing a material according to an embodiment of the present invention, an embodiment of the present invention provides a device for grabbing a material, the device for grabbing a material may include 2 fixed pins 10, 1 supporting discs 20, 2 groups of grabbing mechanisms (each 1 group of grabbing mechanism includes a plurality of grabbing members 30), and the following detailed description is now performed on the fixed pins 10, the supporting discs 20, 2 groups of grabbing mechanisms (each 1 group of grabbing mechanism includes a plurality of grabbing members 30) respectively:

for 2 fixation pins 10 and 1 support disc 20:

2 fixing pins 10 are respectively connected with an external excavator moving arm so as to support the fixing pins 10 through the external excavator moving arm; the 2 fixing pins 10 are perpendicular to the fastening disc 304 described below. The support disc 20 is connected with 2 fixing pins 10, and the support disc 20 and the fixing pins 10 are perpendicular to each other.

With reference to fig. 1, 2 fixing pins 10 may be fixedly connected to an external excavator moving arm, and the fixing pins 10 may be driven to move together by the movement of the external excavator moving arm. The excavator forearm can be the forearm of excavator, and the excavator is a kind of machine of engineering machine, is used for the engineering fields such as building, water conservancy, electric power, road, mine, harbour and national defence to dig soil, loosen the soil operation. The working part of the excavator mainly comprises a small arm, a big arm, a cab, a main frame, a crawler and the like. The boom of the excavator is also called a boom, the boom is connected to a boom, and one end of the boom is connected to a claw, a bucket, or the like, which is an important working part of the excavator, and the structural strength and weight of the part directly affect the working performance of the excavator.

For 2 sets of gripper mechanisms (each 1 set of gripper mechanisms includes several gripper members 30):

the 2 groups of grabbing mechanisms are respectively connected with the supporting disc 20 so as to grab the materials through the 2 groups of grabbing mechanisms, and the distribution position of each 1 group of grabbing mechanisms on the supporting disc 20 corresponds to the distribution position of 1 fixing pin 10 on the supporting disc. That is, 1 set of gripping mechanisms is distributed on the support disc 20 corresponding to 1 fixing pin 10. Every 1 group the snatch the mechanism and contain a plurality of and grab piece 30, and every 1 group grab in the mechanism a plurality of grab piece 30 to corresponding 1 the fixed pin is the center and is the symmetric distribution, a plurality is positive integer (like 4).

Specifically, with continued reference to fig. 1-2, the connection line of the center points of the 2 fixing pins 10 and the center point M of the support disk 20 are aligned with each other.

In addition, in the embodiment of the present invention, each 1 group of the gripping mechanisms includes 4 gripping members 30; the 4 grabbing pieces 30 and the supporting disk 20 form 4 connecting supporting points 3000, the distribution positions of the 4 connecting supporting points 3000 on the supporting disk 20 correspond to the distribution positions of the 1 fixing pins 10 on the supporting disk, and the 4 connecting supporting points 3000 are symmetrically distributed on the supporting disk by taking the fixing pins 10 as central dots.

It should be noted here that, because at the in-process of snatching the material, when only 1 group snatchs the mechanism, sometimes also can meet the condition of snatching the interim trouble of mechanism, and then have to stop snatching when snatching the mechanism and breaking down at this moment, can only shut down the maintenance and treatment, and the utility model discloses a set up 2 groups snatch the mechanism, when wherein 1 group snatchs the mechanism and breaks down, other 1 groups snatch the mechanism and still can normally operate, have guaranteed to snatch the normal clear of work.

And simultaneously, because the utility model 2 the central point connecting wire of fixed pin 10 with the center dot M that supports disc 20 is on same straight line, also make 2 groups snatch the distribution of mechanism symmetry and 2 sides supporting disc 20, 4 connection pivots 3000 are in simultaneously support disc 20's distribution position and 1 the fixed pin 10 is in the distribution position of support disc is corresponding, just 4 connection pivots 3000 with fixed pin 10 is center dot symmetric distribution in on the support disc for arbitrary 1 group snatchs the piece of grabbing in the mechanism and when carrying out the material and snatch, can not cause the influence because of the collision to the piece of grabbing of the mechanism of grabbing of another 1 groups, has simple structure, high security and extensive applicability's characteristics.

Further, any one of the grapple members 30 includes a connecting pin 301, a driving member 302, a grapple connection member 303, a fastening disk 304, a bucket flap connection member 305, and a grapple bucket flap 306. The connecting pin 301 is connected with the supporting disk 20, and the supporting disk 20 is positioned between the fixing pin 10 and the connecting pin 301; the driving piece 302 is connected with the connecting pin 301, and the connecting pin 301 is positioned between the supporting disk 20 and the driving piece 302; a grapple attachment member 303 is connected to the driver 302, the driver 302 being located between the connecting pin 301 and the grapple attachment member 303.

The fastening disc 304 is provided with fastening points, through which the fastening disc 304 is connected with the grapple connection member 303; the bucket flap connector 305 is connected with the fastening disc 304, and the bucket flap connector 305 is connected with the grab bucket connector 303; the grapple bucket flap 306 is hinged to the bucket flap connector 305, and the bucket flap connector 305 is located between the securing disc 304 and the grapple bucket flap 306. Wherein, a plurality is 5. The grapple bucket flaps 306 of the plurality of grapples 30 are symmetrically distributed about the fixed pin 10.

With continued reference to fig. 1, the driving member 302 is a hydraulic cylinder, which may be a hydraulic actuator that converts hydraulic energy into mechanical energy and performs a linear reciprocating motion (or a swinging motion). The hydraulic cylinder has simple structure and reliable work, can remove a speed reducer when realizing reciprocating motion by the hydraulic cylinder, has no transmission clearance and stable motion, and is widely applied to hydraulic systems of various machines. The hydraulic cylinder is basically composed of cylinder barrel and cylinder cover, piston and piston rod, sealing device, buffer device and exhaust (or liquid discharge) device. The driving member 302 is fixed to the support disc 20 by means of the connecting pin 301, and the driving member 302 can be moved by the movement of the support disc 20.

In addition, the grapple bucket flaps 306 may take the shape of petals, with the grapple bucket flaps 306 protruding outwardly at a position relative to the connecting pin 301, with a space inside the grapple bucket flaps 306 capable of accommodating shorter materials to be grabbed. Several of the grapple lobes 306 may each take the shape of a petal. A space capable of containing short materials is formed by surrounding the plurality of grab bucket petals 306, and the materials to be grabbed are grabbed or put down by opening or closing the plurality of grab bucket petals 306. For example, when several clamshell bucket flaps 306 are closed, the material can be grabbed, and when several clamshell bucket flaps 306 are open, the grabbed material can be put down.

At the same time, the grapple bucket flap 306 is fixedly arranged on the fastening disc 304 by means of the grapple connection 303, the fastening disc 304 and the flap connection 305, and the drive 302 and the grapple bucket flap 306 are enabled to be connected to each other. When the piston rod in driving piece 302 is elongated, push a plurality of grab bucket petal 306 through the piston rod of extension and keep away from each other, drive the in-process that a plurality of grab bucket petal 306 kept away from each other at the piston rod of driving piece 302 this moment, a plurality of grab bucket petal 306 then can open gradually to form the space of snatching that holds shorter material, make a plurality of grab bucket petal 306 can snatch shorter material, perhaps unload the material that has been snatched by a plurality of grab bucket petal 306. When the piston rod in driving piece 302 shortens, come to stimulate a plurality of grab bucket lamella 306 through the piston rod that shortens and be close to each other, at this moment the piston rod of driving piece 302 drives the in-process that a plurality of grab bucket lamella 306 is close to each other, can snatch the material that is arranged in a plurality of grab bucket lamella 306 to put the shorter material that has been snatched to the assigned position through removing external excavator removal arm. Thereby reach and to snatch shorter material, raise the efficiency, reduce cost's technical effect.

It should be noted that, for better grabbing shorter materials, the plurality of grabbing members 30 may refer to 4 grabbing members 30, and the 4 grabbing members 30 refer to a first grabbing member, a second grabbing member, a third grabbing member and a fourth grabbing member, respectively, and for explaining the situation of the 4 grabbing members 30 in detail, the following description is now performed on the first grabbing member, the second grabbing member, the third grabbing member and the fourth grabbing member, respectively:

to first grabbing piece, first grabbing piece includes first connecting pin, first driving piece, first grab bucket connecting piece, first grab bucket lamella. The first connecting pin is connected with the supporting disk 20, the supporting disk 20 is positioned between the fixing pin 10 and the first connecting pin, so that the first connecting pin rotates with the joint of the first connecting pin and the supporting disk 20 as a pivot, and the first connecting pin is supported by the supporting disk 20 and the fixing pin 10. The first driving member is connected with the first connecting pin, and the first connecting pin is positioned between the supporting disk 20 and the first driving member so as to support the first driving member through the supporting disk 20. The first grab bucket connecting piece is connected with the first driving piece, and the first driving piece is located the first connecting pin and between the first grab bucket connecting pieces so as to drive the first grab bucket flap connected with the first grab bucket connecting piece and the first grab bucket flap connecting piece to open or close through the telescopic motion of the first driving piece.

The fastening disc 304 is provided with a first fastening point, a second fastening point, a third fastening point, a fourth fastening point and a fifth fastening point, and the fastening disc 304 is connected with the first grab bucket connecting piece through the first fastening point; a first bucket flap connector is connected with the fastening disc 304, and the first bucket flap connector is connected with the first grab bucket connector; the first clamshell bucket flap and the first clamshell bucket flap connector are hinged to each other, and the first clamshell bucket flap connector is positioned between the fastening disc 304 and the first clamshell bucket flap; the first and second grapple legs are symmetrically distributed relative to the fixed pin 10.

With continued reference to fig. 1, the first driving member may be a hydraulic cylinder, and the hydraulic cylinder may be a hydraulic actuator that converts hydraulic energy into mechanical energy and performs a linear reciprocating motion (or a swinging motion). The hydraulic cylinder has simple structure and reliable work, can remove a speed reducer when realizing reciprocating motion by the hydraulic cylinder, has no transmission clearance and stable motion, and is widely applied to hydraulic systems of various machines. The hydraulic cylinder is basically composed of cylinder barrel and cylinder cover, piston and piston rod, sealing device, buffer device and exhaust (or liquid discharge) device. The first driving member may be fixed to the support disc 20 by a first connecting pin, and then the movement of the first driving member can be carried by the movement of the support disc 20.

It is noted that the first grapple bucket flap may take the shape of a petal, which protrudes outwardly at a position relative to the first connecting pin, and there may be a space within the first grapple bucket flap that is capable of accommodating shorter materials. The second bucket leg described below may also have a petal shape, the third bucket leg described below may also have a petal shape, and the fourth bucket leg described below may also have a petal shape. The space capable of containing shorter materials can be formed by encircling the first grab bucket flap, the second grab bucket flap, the third grab bucket flap and the fourth grab bucket flap, and the materials to be grabbed can be grabbed or put down by opening or closing the first grab bucket flap, the second grab bucket flap, the third grab bucket flap and the fourth grab bucket flap.

At the same time, a first grapple bucket flap may be fixedly arranged on the fastening disc 304 by means of the first grapple connection, the fastening disc 304 and the first bucket flap connection, and the first drive element and the first grapple bucket flap may be connected to each other. When the piston rod in the first driving piece extends, the first grab bucket flap and the following second grab bucket flap can be pushed to be close to each other through the extending piston rod, at the moment, the piston rod of the first driving piece drives the first grab bucket flap and the second grab bucket flap to be close to each other, so that the first grab bucket flap and the second grab bucket flap can grab shorter materials, and the grabbed shorter materials can be placed to the designated position through the first grab bucket flap and the second grab bucket flap. When the piston rod in the first driving piece shortens, the first grab bucket flap and the following second grab bucket flap can be pushed to be away from each other through the shortened piston rod, at the moment, the piston rod of the first driving piece drives the first grab bucket flap and the second grab bucket flap to be away from each other, so that the first grab bucket flap and the second grab bucket flap can unload the grabbed short materials, and the grabbed short materials can be placed to the designated position through the first grab bucket flap and the second grab bucket flap. Thereby reach and to snatch shorter material, raise the efficiency, reduce cost's technical effect.

For the second grabbing piece, the second grabbing piece comprises a second connecting pin, a second driving piece, a second grab bucket connecting piece, a second grab bucket flap connecting piece and a second grab bucket flap. A second connecting pin may be connected to the support disc 20, the support disc 20 being located between the fixing pin 10 and the second connecting pin. Since the second connecting pin has the same structure and principle as the first connecting pin, the description thereof will not be repeated. A second driving member is connected to the second connecting pin, which is located between the support disc 20 and the second driving member. The second driving member and the first driving member have the same structure and principle, so the description will not be repeated here. The second grapple connecting piece is connected to the second driving piece, the second driving piece is located between the second connecting pin and the second grapple connecting piece, and the fastening disc 304 is connected to the second grapple connecting piece through the second fastening point. Since the second grapple attachment is identical in structure and principle to the first grapple attachment described above, the description thereof will not be repeated here.

A second bucket flap coupler is coupled to the securing puck 304, and the second bucket flap coupler is coupled to the second grapple coupler. The second bucket flap connector and the first bucket flap connector have the same structure and principle, so the description is not repeated here. The second grapple bucket flap is hinged to the second bucket flap connection, which is located between the securing disc 304 and the second grapple bucket flap. The second grapple bucket flap is identical in structure and principle to the first grapple bucket flap, and therefore description thereof will not be repeated here. The second and third clamshell bucket flaps are symmetrically distributed relative to the fixed pin 10.

For the third grabbing piece, the third grabbing piece comprises a third connecting pin, a third driving piece, a third grab bucket connecting piece, a third grab bucket petal connecting piece and a third grab bucket petal. A third connecting pin is connected to the support disc 20, and the support disc 20 is located between the fixing pin 10 and the third connecting pin. The third connecting pin and the first connecting pin have the same structure and principle, so the description thereof will not be repeated here. A third drive member is connected to the third connecting pin, which is located between the support disc 20 and the third drive member. Since the third driving member and the first connecting pin have the same structure and principle, they will not be described in detail here. The third grapple connecting piece is connected to the third driving piece, the third driving piece is located between the third connecting pin and the third grapple connecting piece, and the fastening disc 304 is connected to the third grapple connecting piece through the third fastening point. Since the third grapple connection member is identical in structure and principle to the first grapple connection member, the description thereof will not be repeated.

A third bucket flap coupler is coupled to the securing puck 304, and the third bucket flap coupler is coupled to the third grapple coupler. The third bucket flap connector and the first bucket flap connector have the same structure and principle, so the description is not repeated here. The third clamshell bucket petal is hinged to the third petal coupler, and the third petal coupler is located between the fastening disc 304 and the third clamshell bucket petal. The third grapple bucket leg and the first grapple bucket leg have the same structure and principle, and therefore, description thereof will not be repeated here. The third and fourth clamshell bucket flaps are symmetrically distributed relative to the fixed pin 10.

For the fourth grabbing piece, the fourth grabbing piece comprises a fourth connecting pin, a fourth driving piece, a fourth grab bucket connecting piece, a fourth grab bucket flap connecting piece and a fourth grab bucket flap. The fourth connecting pin is connected to the support disc 20, and the support disc 20 is located between the fixing pin 10 and the fourth connecting pin. Since the fourth connecting pin has the same structure and principle as the first connecting pin, the description thereof will not be repeated here. A fourth drive member is connected to the fourth connecting pin between the support disc 20 and the fourth drive member. The fourth driving member and the first driving member have the same structure and principle, so the description thereof will not be repeated here.

The fourth grapple connecting piece is connected to the fourth driving piece, the fourth driving piece is located between the fourth connecting pin and the fourth grapple connecting piece, and the fastening disk 304 is connected to the fourth grapple connecting piece through the fourth fastening point. Since the fourth grapple connection member has the same structure and principle as the first grapple connection member, the description thereof will not be repeated. A fourth bucket flap coupler is coupled to the securing disk 304, and the fourth bucket flap coupler is coupled to the fourth grapple coupler. The fourth bucket petal connecting piece and the first bucket petal connecting piece have the same structure and principle, so the description is not repeated here. The fourth clamshell bucket petal is hinged to the fourth petal coupler, and the fourth petal coupler is located between the fastening disc 304 and the fourth clamshell bucket petal. The fourth grab bucket flap and the upper first grab bucket flap have the same structure and principle, so the description is not repeated here.

In addition, in each 1 group of the grabbing mechanism, the fastening discs of any 2 grabbing pieces are on the same horizontal plane. In the 2 groups of the grabbing mechanisms, the fastening discs of any 2 grabbing pieces are on the same horizontal plane.

The utility model provides a support disc 20 and fixed pin 10 are connected, support disc 20 and fixed pin 10 mutually perpendicular. The plurality of grabbing pieces 30 are respectively connected with the supporting disc 20, so that the supporting disc 20 fixes the plurality of grabbing pieces 30, the excavator drives the fixing pin 10 to move, the fixing pin 10 moves to drive the supporting disc 20 to move together, and the supporting disc 20 moves to drive the plurality of grabbing pieces 30 to move together. When moving over the material to be gripped, the material is gripped by a number of gripping members 30; grabbing piece 30 with fixed pin 10 presents for the symmetric distribution for the centre for grabbing piece 30 can press from both sides tightly the material all around, then can snatch shorter material. Thereby reached and to have shortened the process of grabbing the material, raise the efficiency, reduce cost's technical effect.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (6)

1. An apparatus for gripping material, the apparatus comprising:

2 fixed pins, wherein the 2 fixed pins are respectively connected with an external excavator moving arm;

1 supporting disk, wherein 1 supporting disk is respectively connected with 2 fixing pins, and the supporting disk is vertical to each fixing pin;

2 groups of grabbing mechanisms, wherein the 2 groups of grabbing mechanisms are respectively connected with the supporting disc so as to grab the materials through the 2 groups of grabbing mechanisms, and the distribution position of each group of grabbing mechanisms on the supporting disc corresponds to the distribution position of 1 fixing pin on the supporting disc; every 1 group snatch the mechanism and contain a plurality of and snatch the piece, and every 1 group in snatching the mechanism a plurality of snatch the piece and use 1 that corresponds the fixed pin is the symmetric distribution as the center, a plurality is just the integer.

2. A device for gripping material as defined in claim 1, wherein:

and 2, the central point connecting line of the fixing pins and the central dot of the supporting disk are on the same straight line.

3. A device for gripping material as defined in claim 2, wherein:

each 1 group of the grabbing mechanism comprises 4 grabbing pieces;

4 grab with the support disc forms 4 connection fulcrums, 4 connection fulcrums are in the distribution position and the 1 of support disc the fixed pin is in the distribution position of support disc corresponds, just 4 connection fulcrums use the fixed pin is central dot symmetric distribution on the support disc.

4. A device for gripping material as defined in claim 3, wherein the gripping member comprises:

the connecting pin is connected with the supporting disk, and the supporting disk is positioned between the fixing pin and the connecting pin;

the driving piece is connected with the connecting pin, and the connecting pin is positioned between the supporting disk and the driving piece;

the grab bucket connecting piece is connected with the driving piece, and the driving piece is positioned between the connecting pin and the grab bucket connecting piece;

the fastening disc is provided with fastening points and is connected with the grab bucket connecting piece through the fastening points;

the bucket petal connecting piece is connected with the fastening disc and the grab bucket connecting piece;

the grab bucket flap is hinged to the grab bucket flap connecting piece, and the grab bucket flap connecting piece is located between the fastening disc and the grab bucket flap.

5. An apparatus for gripping material as defined in claim 4, wherein:

in each 1 group of the grabbing mechanism, the fastening discs of any 2 grabbing pieces are on the same horizontal plane.

6. An apparatus for gripping material as defined in claim 4, wherein:

in the 2 groups of the grabbing mechanisms, the fastening discs of any 2 grabbing pieces are on the same horizontal plane.