CN209903231U

CN209903231U - Excavator forearm bottom suspension type I-shaped frame formula tongs structure

Info

Publication number: CN209903231U
Application number: CN201822232945.2U
Authority: CN
Inventors: 王春云
Original assignee: Zhongning County Xinqihang Agriculture Development Co Ltd
Current assignee: Zhongning County Xinqihang Agriculture Development Co Ltd
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-01-07
Anticipated expiration: 2028-12-28

Abstract

The utility model provides a hanging I-shaped frame type gripper structure at the bottom of a small arm of an excavator, which comprises a rotating shaft assembly, a hinged shaft assembly, an I-shaped frame assembly, a hinged shaft of a lifting lug assembly, a lifting lug plate, a first sharp mouth and meshing teeth; the main body frame supporting plate is a front triangular plate structure and a rear triangular plate structure which are butted together in a shaft penetrating connection mode, and the left side and the right side of the bottom of each main body frame supporting plate are respectively hinged with a lower gripper assembly and an upper gripper assembly through rotating shaft connecting pieces; the first sharp mouth occlusion and the first sharp mouth occlusion are both sharp mouth-shaped structures, the existing operation mode that an I-shaped frame on a small arm of the excavator is connected to a lifting lug plate of a material grabbing device is replaced by the I-shaped frame structure of the grab, and the problems of unstable fixation and noise generation caused by the fact that the I-shaped frame structure of the small arm is fixed and cannot be connected with the lifting lug plate in a matched mode and a binding and fixing mode is needed are solved.

Description

Excavator forearm bottom suspension type I-shaped frame formula tongs structure

Technical Field

The invention belongs to the technical field of a gripper structure of steel grasping equipment, and particularly relates to a suspended I-shaped frame type gripper structure at the bottom of a small arm of an excavator.

Background

The mechanical gripper is mainly composed of a lower gripper assembly and an upper gripper as rotating hinge parts, the lower gripper assembly and the upper gripper are hinged to two sides of a main body supporting frame through a rotating shaft assembly mechanism in a left-right mode to form an occlusion structure capable of being opened and closed.

Based on the description, the existing gripper device with the structure is single in structure at the bottom occlusion part, when a waste thin steel sheet or a steel strip is gripped, the waste is not easy to extract and grip, the functionality is poor, particularly, when an ear lifting plate of an upper gripper assembly of the gripper is in rotary butt joint with an original I-shaped frame of a small arm providing power, due to the fact that the I-shaped frame is fixedly designed along with the small arm of the excavator, when the gripper ear lifting plate is connected with the I-shaped frame, good matching cannot be achieved, installation is inconvenient, the I-shaped frame and the ear lifting plate are often required to be connected in a binding mode, the connection mode is poor in fixing mode, and shaking is easy to generate during action, so that the gripper device with the structure of the self-carrying I-shaped frame is designed, and the stability of the gripper device after the gripper device is connected with the small arm of the excavator.

Disclosure of Invention

In order to solve the technical problems, the invention provides a suspended I-shaped frame type gripper structure at the bottom of a small arm of an excavator, which aims to solve the problems that the existing gripper device with the structure is single in structure at the bottom occlusion part, is not easy to extract and grab waste materials when grabbing the waste materials such as thin steel sheets or steel strips, and is poor in functionality, particularly, when a lug plate of an upper gripper assembly of the gripper is in rotary butt joint with an original I-shaped frame of the small arm providing power, because the I-shaped frame is fixedly designed along with the small arm of the excavator, the good matching cannot be realized when the lug plate of the gripper is connected with the small arm, the mounting is inconvenient, the I-shaped frame and the lug plate are often required to be connected in a binding mode, the connection mode is poor in fixing mode, and the I-shaped frame is easy to.

The invention aims and effects of a hanging I-shaped frame type gripper structure at the bottom of a small arm of a digging machine, and the structure is achieved by the following specific technical means:

the suspended I-shaped frame type gripper structure at the bottom of the small arm of the excavator comprises a main body frame supporting plate, a lower gripper assembly, an upper gripper assembly, a rotating shaft assembly, a hinge shaft assembly, an I-shaped frame assembly, a hinge shaft of a lifting lug assembly, a lifting lug plate, a first sharp mouth, and first sharp mouth occlusion and occlusion teeth; the main body frame supporting plate is a front triangular plate structure and a rear triangular plate structure which are butted together in a shaft penetrating connection mode, and the left side and the right side of the bottom of each main body frame supporting plate are respectively hinged with a lower gripper assembly and an upper gripper assembly through rotating shaft connecting pieces; the first sharp mouth occlusion and the second sharp mouth occlusion are both sharp mouth-shaped structures which are respectively arranged at the bottom ends of the lower gripper assembly and the upper gripper assembly and are arranged in an array manner; the right front side of main part frame backup pad all has still seted up the circular shape mounting hole, and all still runs through in the circular mounting hole and installs the rotation axis assembly.

Further: and the outer end of the rotating shaft assembly is further rotatably matched with the hinge shaft assembly through a connecting rod mechanism to form an I-shaped frame assembly.

Further: the bottom end of the I-shaped frame assembly is supported and connected to the two lug plates through the hinge shaft of the lifting lug assembly, and the action support connection of the upper gripper assembly is realized.

Further: and the inner side surfaces of the first sharp mouth occlusion part and the second sharp mouth occlusion part are respectively welded with an occlusion tooth in a sleeving manner.

Further: the occlusion teeth are of a quenched steel sleeved plate structure, the upper surface of the occlusion teeth is of a rhombic strip edge structure, and edges of the occlusion teeth are arranged in a lifting mode.

Compared with the prior art, the invention has the following beneficial effects:

the gripper device designed by the invention is added with functions on the basis of the existing gripper structure, and is mainly embodied in the following two aspects:

the I-shaped frame is installed through the connecting rod and the hinge shaft structure, the I-shaped frame is connected with the two lug plates installed on the gripper assembly through the connecting rod in an axial joint mode, so that the device has an I-shaped frame structure and is used for replacing the I-shaped frame on the small arm of the excavator.

A row of sharp-mouth occluding parts are arranged at the bottoms of the left gripper and the right gripper of the material grabbing device, occluding teeth are arranged on the sharp-mouth occluding parts, when the two grippers of the material grabbing device are combined to grab steel waste, the occluding teeth are closed like teeth, thin strip-shaped steel strip waste in the waste can be clamped and pulled out, the function of grabbing by waste classification is achieved, and the functional structure is further improved.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a schematic diagram of the right-side plan structure of the present invention.

Fig. 3 is a schematic view of the structure and mounting principle of the bottom occlusion teeth of the gripper assembly of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

the device comprises a main body frame supporting plate-1, a lower gripper assembly-2, an upper gripper assembly-3, a rotating shaft assembly-4, a hinge shaft assembly-5, an I-shaped frame assembly-6, a lifting lug assembly hinge shaft-7, a lifting lug plate-8, a first sharp mouth occlusion-9, a second sharp mouth occlusion-10 and occlusion teeth-11.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 3:

the invention provides a hanging I-shaped frame type gripper structure at the bottom of a small arm of a digging machine, which comprises: the device comprises a main frame supporting plate 1, a lower gripper assembly 2, an upper gripper assembly 3, a rotating shaft assembly 4, a hinge shaft assembly 5, an I-shaped frame assembly 6, a lifting lug assembly hinge shaft 7, a lifting lug plate 8, a first sharp mouth occlusion 9, a second sharp mouth occlusion 10 and occlusion teeth 11; the main body frame supporting plate 1 is a front triangular plate structure and a rear triangular plate structure which are butted together in a shaft penetrating connection mode, and the left side and the right side of the bottom of the main body frame supporting plate are respectively hinged with a lower gripper assembly 2 and an upper gripper assembly 3 through rotating shaft connecting pieces; the first sharp mouth occlusion 9 and the second sharp mouth occlusion 10 are both sharp mouth-shaped structures, are respectively arranged at the bottom ends of the lower gripper assembly 2 and the upper gripper assembly 3, and are arranged in an array; the right front side of main part frame backup pad 1 has all still seted up the circular shape mounting hole, and all still runs through in the circular mounting hole and installs rotation axis assembly 4.

Wherein: the outer end of the rotating shaft assembly 4 is further in rotating fit with the hinge shaft assembly 5 through a connecting rod mechanism to form an I-shaped frame assembly 6, so that the device has an I-shaped frame structure on the gripper assembly 3 on the moving part, and the I-shaped frame on the small arm of the original excavator is liberated.

Wherein: the bottom of the I-shaped frame assembly 6 is supported and connected on two lug plates 8 through a lug assembly hinge shaft 7, the action support connection of the upper gripper assembly 3 is realized, the direct through-shaft connection with the forearm on the excavator forearm I-shaped frame is convenient, the existing connection mode that the excavator forearm bottom side I-shaped frame is bound on the lug is replaced, when the device is connected with the excavator forearm bottom double shaft, the I-shaped frame can be directly butted with the double shaft tandem shaft, the movement effect is more stable in use, and the connection mode is more convenient.

Wherein: the inner side surfaces of the first sharp mouth occlusion 9 and the second sharp mouth occlusion 10 are respectively sleeved and welded with an occlusion tooth 11, as shown in fig. 2 and 3, the occlusion teeth 11 are arranged to clamp and pull out thin strip-shaped steel strip waste materials in the waste materials after being closed along with the bilateral gripper assembly like teeth, and the structure is improved.

Wherein: in order to further improve the strength and the installation structure of the occlusion teeth 11, the occlusion teeth 11 are of a quenched steel sleeved plate structure, the upper surface of each occlusion tooth is of a rhombic strip edge structure, edges of the occlusion teeth are arranged in an upward mode, when a workpiece is grabbed and occluded with the workpiece, clamping force is stronger, and strip steel type waste materials are conveniently pulled out of the waste materials.

When in use: the I-shaped frame connected with the oil cylinder extension rod at the bottom side of the small arm of the excavator is detached, the oil cylinder extension rod is directly butted with the hinge shaft assembly 5 on the I-shaped frame assembly 6 of the structure, the I-shaped frame assembly is more stable after installation and convenient to butt joint, only the hinge shaft assembly 5 needs to be penetrated into the mounting hole at the bottom end of the oil cylinder extension rod of the small arm and the hinge rod hole of the I-shaped frame assembly 6, when the extension rod of the oil cylinder of the small arm acts, the I-shaped frame assembly 6 controls the upper gripper assembly 3 and the lower gripper assembly 2 to complete combined gripping action, the use is more stable, the existing connection mode that the I-shaped frame at the bottom side of the small arm of the excavator needs to be bound on a lifting lug is replaced, when the device is connected with the double shafts at the bottom of the small arm of the excavator.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. Dig quick-witted forearm bottom suspension type I-shaped posture tongs structure, its characterized in that: the suspended I-shaped frame type gripper structure at the bottom of the small arm of the excavator comprises a main body frame supporting plate (1), a lower gripper assembly (2), an upper gripper assembly (3), a rotating shaft assembly (4), a hinge shaft assembly (5), an I-shaped frame assembly (6), a hinge shaft (7) of a lifting lug assembly, a lifting lug plate (8), a first sharp mouth occlusion (9), a second sharp mouth occlusion (10) and occlusion teeth (11); the main body frame supporting plate (1) is a front triangular plate structure and a rear triangular plate structure which are butted together in a shaft penetrating connection mode, and the left side and the right side of the bottom of the main body frame supporting plate are respectively hinged with a lower gripper assembly (2) and an upper gripper assembly (3) through rotating shaft connecting pieces; the first sharp mouth occlusion (9) and the second sharp mouth occlusion (10) are both sharp mouth-shaped structures, are respectively arranged at the bottom ends of the lower gripper assembly (2) and the upper gripper assembly (3), and are arranged in an array form; the right front side of main part frame backup pad (1) all has still seted up the circular shape mounting hole, and all still runs through in the circular mounting hole and installs rotation axis assembly (4).

2. The excavator forearm bottom suspension type I-shaped frame type gripper structure of claim 1, wherein: the outer end of the rotating shaft assembly (4) is also rotatably matched with an I-shaped frame assembly (6) through a connecting rod mechanism and a hinge shaft assembly (5).

3. The excavator forearm bottom suspension type I-shaped frame type gripper structure of claim 1, wherein: the bottom end of the I-shaped frame assembly (6) is supported and connected on the two lug plates (8) through the lug assembly hinge shaft (7), so that the action support connection of the upper gripper assembly (3) is realized.

4. The excavator forearm bottom suspension type I-shaped frame type gripper structure of claim 1, wherein: and the inner side surfaces of the first sharp mouth occlusion (9) and the second sharp mouth occlusion (10) are respectively sleeved and welded with an occlusion tooth (11).

5. The excavator forearm bottom suspension type I-shaped frame type gripper structure of claim 1, wherein: the occlusion teeth (11) are of a quenched steel sleeving plate structure, the upper surfaces of the occlusion teeth are of rhombic strip-edge structures, and edges of the occlusion teeth are arranged in a lifting mode.