CN207331790U - A grab excavator - Google Patents

Abstract

The utility model discloses a grab bucket type excavator, which belongs to the field of excavators and comprises a frame platform group, a working arm component, an excavating part, a power unit and a control room; the excavating component comprises a suspension rod, a grab bucket and a working hydraulic rod; the grab bucket is hinged at the tail end of the suspension rod, and the working hydraulic rod is linked with the grab bucket to open and close so as to realize the soil digging function; the excavating component also comprises an impact hammer, the impact hammer is also arranged at the tail end of the suspension rod, and the impact hammer can break rocks before being grabbed by the grab bucket when meeting rock strata. The utility model discloses mainly solve and use grab bucket type excavator construction and run into the technical problem that work efficiency is low when bulky rock or hard rock stratum, avoided the alternative operation of grab bucket type excavator and special rubble machinery, increased work efficiency.

Description

A grab excavator

technical field

The utility model relates to the field of excavators, in particular to a grab type excavator.

Background technique

Grab excavators are often used for foundation pit excavation of building foundations, deep pit excavation, and loading of mud, sand, coal, and gravel.

When using a grab excavator for construction, when encountering a large rock or hard rock formation, so that the excavator grab cannot be picked up, it is usually necessary to suspend the excavation operation, withdraw the excavator grab, and use a special crushing machine to go deep In the excavation pit, the impact hammer is used to crush the rock until it can be grabbed by the grab bucket, and then the grab excavator is used to continue the operation, and the operation is repeated alternately until the predetermined depth is excavated. The work efficiency of this mode of operation is low, has delayed the construction time.

Utility model content

In order to solve the above problems, the utility model provides a grab excavator, which has the functions of excavating soil and breaking rocks, and improves the efficiency of excavating operations.

The technical solution adopted by the utility model is: a grab-type excavator, including a frame platform group, a working arm assembly, an excavating part, a power unit and a control room; the excavating part includes a suspension rod, a grab and a working hydraulic rod; The grab is hinged at the end of the suspension rod, and the working hydraulic rod links the opening and closing of the grab to realize the excavation function; the excavation part also includes an impact hammer, which is also located at the end of the suspension rod, and the impact hammer can grasp the ground when it encounters a rock formation. Rock breaking before bucket grabbing.

In the above technical solution, the boom body is provided with a telescopic mechanism for adjusting the length of the boom; the telescopic mechanism enables the boom to be extended during construction, and the boom can be retracted when the construction is completed.

In the above technical solution, the frame set includes a chassis and a track wheel set, and the chassis is arranged on the upper end of the track wheel set, so that the grab excavator can be easily moved on the construction site.

In the above technical solution, the frame set also includes a turntable, and the turntable is arranged between the chassis and the crawler wheel set to realize the steering function of the excavator.

In the above technical solution, the working arm assembly is arranged on the frame platform group, including the pivot platform, the boom and the hydraulic lever of the boom, the pivot platform is arranged on the chassis, and the boom is hinged on the pivot platform; the hydraulic lever of the boom is linked to move Arm raising and lowering.

In the above technical solution, the working arm assembly also includes a cantilever and a cantilever hydraulic rod, and the cantilever and the boom are hinged to each other; the angle between the end surface of the connection between the cantilever and the boom and the lower end surface of the cantilever is an obtuse angle, which increases the lift of the cantilever end. height to support the installation of a longer boom and increase the digging depth; the hydraulic rod of the boom links the boom to swing up and down.

In the above technical solution, the working arm assembly further includes a steering socket, and the two rotating shafts of the steering socket are perpendicular to each other; one socket of the steering socket is hinged to the cantilever, and the other socket is hinged to the suspension rod. The steering socket allows the boom to swing on the vertical plane, ensuring that the boom can still remain vertical when the body of the excavator is tilted.

In the above technical solution, the power unit is arranged on the vehicle frame platform group, the power unit includes a diesel engine, a hydraulic pump and a generator, the diesel engine is connected to the rotor of the generator, the output end of the generator is electrically connected to the hydraulic pump, and the hydraulic pump is connected to the impact hammer. , the boom hydraulic rod, the cantilever hydraulic rod and the working hydraulic rod are hydraulically connected. The power unit provides power for the movement and operation of the excavator.

The beneficial effects of the utility model are: the grab excavator provided by the utility model, its excavating parts include not only the grab bucket, but also an impact hammer, and the impact hammer can be used when the grab excavator encounters a larger volume during construction. When the rock is broken, the rock is crushed and then grabbed with a grab bucket, which avoids the alternate operation of the grab excavator and the special stone crushing machine, and increases the work efficiency.

Description of drawings

Fig. 1 is a side view of the grab excavator of the present invention.

The reference signs are: 1, frame platform group; 11, chassis; 12, crawler wheel group; 13, turntable; 2, working arm assembly; 21, rotating shaft platform; 22, boom; 23, boom hydraulic rod; 24 , cantilever; 25, cantilever hydraulic rod; 26, steering socket; 3, excavation components; 31, suspension rod; 32, working hydraulic rod; 33, grab bucket; 34, impact hammer; 35, telescopic mechanism; 4, power unit ; 41, diesel engine; 42, generator; 43, hydraulic pump; 5, control room.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 schematically shows a grab excavator according to an embodiment of the present invention.

A grab excavator includes a frame set 1 , a working arm assembly 2 , an excavating assembly 3 , a power unit 4 and a control room 5 .

The vehicle frame platform group 1 includes a chassis 11 , a crawler wheel group 12 and a turntable 13 . The lower end of the turntable 13 is connected to the crawler wheel set 12, and the upper end is connected to the chassis 11 to realize the steering function.

The working arm assembly 2 includes a rotating shaft table 21 , a boom 22 , a boom hydraulic rod 23 , a boom 24 , a boom hydraulic rod 25 and a steering socket 26 . The pivot table 21 is located on the left side of the chassis 11, the boom 22 has a radian, and is boomerang-shaped from the side, and one end of the boom 22 is hinged with the pivot stage 21; the lower end of the boom hydraulic rod 23 is hinged with the chassis, and the upper end is connected with the boom The corner of the lower end of 23 is hinged, and the telescopic movement of the boom hydraulic rod 23 drives the boom 22 to rotate around the rotating shaft at the hinge joint with the rotating shaft table 21, so that the end of the boom 22 can move up and down, so that the boom hydraulic rod 23 is linked to the boom 22 Ascension and descent. The other end of the cantilever 24 is hinged with the boom 22; the angle between the end surface of the connection between the cantilever 24 and the boom 22 and the lower end surface of the cantilever 24 is an obtuse angle, so that the cantilever 24 is an obtuse triangle when viewed from the side, so as to enlarge the end of the cantilever 24 The lifting angle can support the installation of a longer boom 31 to increase the excavation depth; one end of the boom hydraulic rod 25 is hinged at the corner of the upper end of the boom 22, and the other end is hinged with the boom 24, and the telescopic movement of the boom hydraulic rod 25 drives the boom 24 rotates around the rotating shaft at the hinge joint with boom 22 to realize the cantilever hydraulic rod 25 linked with the cantilever 24 to swing up and down. The steering socket 26 is arranged at the end of the cantilever 24 , and its upper end is hinged with the end of the cantilever 24 .

The excavation assembly 3 includes a suspension rod 31 , two working hydraulic rods 32 , two grab buckets 33 , an impact hammer 34 and a telescopic mechanism 35 . The telescoping mechanism 35 is located at the middle part of the suspension rod 31. During the construction, the suspension arm 31 is extended and retracted after completion. The upper end of the suspension rod 31 is hinged with the lower end of the steering socket 26. The shaft at the upper end of the bar 31 and the shaft at the end of the boom 24 are perpendicular to each other, allowing the digging assembly 3 to swing on a vertical plane. Even if the excavator is in a rough place and the fuselage is tilted, the digging assembly 3 can still remain vertical. Two grab buckets 33 are opposite to each other and are located at the end of the suspension rod 31; The telescopic movement of the rod 32 drives the grab buckets 33 to open and close, and the two mutually opposite grab buckets 33 cooperate to realize the function of digging. The impact hammer 34 is located between the two grab buckets 33. The hammer head of the impact hammer 34 is conical, and the hammer body is provided with three ribs parallel to each other. The three ribs are perpendicular to the hammer body to increase the impact. The strength of the hammer 34; the impact hammer 34 is driven by hydraulic pressure and can reciprocate up and down to impact rocks, so as to realize the function of impacting gravel.

The power unit 4 is located at the rear end of the chassis 11 and includes a diesel engine 41, a generator 42 and a hydraulic pump 43. The diesel engine 41 is connected to the rotor of the generator 42 to drive the generator 42 to generate electricity. The output of the generator 42 is electrically connected to the hydraulic pump 43. The hydraulic pump 43 is connected with the impact hammer 34, the boom hydraulic rod 23, the cantilever hydraulic rod 25 and the working hydraulic rod 32 through hydraulic pipes and hydraulic oil. The control room 5 is located at the front end of the chassis 11 .

When using the grab excavator of this embodiment for construction, the diesel engine 41 starts first and drives the generator 42 to generate electricity. The generator 42 supplies power to the hydraulic pump 43 and the control room 5 through the electronic control assembly. The hydraulic pump 43 is the impact hammer 34, The boom hydraulic rod 23, the boom hydraulic rod 25 and the working hydraulic rod 32 provide power. When encountering larger rocks or hard rock formations during the excavation operation, so that the grab bucket 33 cannot grab them, the impact hammer 34 can be extended to crush the rocks to a volume that the grab bucket 33 can grab, and then continue to use the grab bucket 33. Bucket 33 works until digging to a predetermined depth.

The above embodiments are only intended to illustrate rather than limit the utility model, so all equivalent changes or modifications made according to the method described in the scope of the patent application of the utility model are included in the scope of the patent application of the utility model.

Claims (8)

1. A grab type excavator, comprising a vehicle frame platform group (1), a working arm assembly (2), an excavating component (3), a power unit (4) and a control room (5); the excavating component (3) includes Suspension bar (31), grab (33) and working hydraulic rod (32); The feature is that the excavating part (3) also includes an impact hammer (34), and the impact hammer (34) is also arranged at the end of the suspension rod (31) to break rocks before the grab (33) grabs. 2. A grab excavator according to claim 1, characterized in that: the body of the suspension rod (31) is provided with a telescopic mechanism (35) for adjusting the length of the suspension rod. 3. A grab excavator according to claim 1, characterized in that: the vehicle frame set (1) includes a chassis (11) and a crawler wheel set (12), and the chassis (11) is arranged on the track wheel set (12) The upper end enables the grab excavator to move conveniently on the construction site. 4. A kind of grab excavator according to claim 3, characterized in that: the vehicle frame platform group (1) also includes a turntable (13), and the turntable (13) is located between the chassis (11) and the track wheel group ( 12) Between. 5. A grab-type excavator according to claim 3, characterized in that: the working arm assembly (2) is arranged on the vehicle frame platform group (1), including a rotating shaft platform (21), a boom (22) And boom hydraulic rod (23), rotating shaft table (21) is located on the chassis (11), and moving arm (22) is hinged on the rotating shaft table (21); Moving arm hydraulic rod (23) linkage boom (22) Ascension and descent. 6. A grab excavator according to claim 5, characterized in that: the working arm assembly (2) also includes a cantilever (24) and a cantilever hydraulic rod (25), and the cantilever (24) and the boom (22 ) are mutually hinged; the angle between the end surface of the joint of the cantilever (24) and the boom (22) and the lower end surface of the cantilever (24) is an obtuse angle; the cantilever hydraulic rod (25) links the cantilever (24) to swing up and down. 7. A kind of grab excavator according to claim 6, characterized in that: the working arm assembly (2) also includes a steering socket (26), and the two rotating shafts of the steering socket (26) are perpendicular to each other; One socket of the socket (26) is hinged with the cantilever (24), and the other socket is hinged with the suspension rod (31). 8. A kind of grab excavator according to claim 5 or 6, characterized in that: the power unit (4) is arranged on the frame platform group (1), and the power unit (4) includes a diesel engine (41), The hydraulic pump (43) and the generator (42), the diesel engine (41) is connected with the rotor of the generator (42), the output end of the generator (42) is electrically connected with the hydraulic pump (43), and the hydraulic pump (43) is connected with the shock Hammer (34), boom hydraulic lever (23), cantilever hydraulic lever (25) and working hydraulic lever (32) are hydraulically connected.