CN201169791Y

CN201169791Y - Static balancing type low barycentre digging machine

Info

Publication number: CN201169791Y
Application number: CNU200820062666XU
Authority: CN
Inventors: 王国富
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-26
Filing date: 2008-03-26
Publication date: 2008-12-24
Anticipated expiration: 2018-03-26

Abstract

The utility model relates to a static balancing low gravity center digger, wherein, a box body (7) is positioned on a traveling device and connected with a machine frame; an engine (1), a hydraulic pump (2), an oil tank (3) and a counter weight (6) are positioned inside the box body (7); a revolving bearing (8) is connected with a revolving platform which is positioned on the box body (7); a driving cab, a revolving motor (4) and an operating device are positioned on the revolving platform; the revolving bearing (8) is rotationally matched with a revolving joint (10) on the box body; a wire of the engine (1) is connected with a console in the driving cab through the revolving joint (10); a power output end of the engine (1) is connected with the hydraulic pump (2); an oil channel of the hydraulic pump is connected with a group valve (9) through the oil tank (3) and the revolving joint (10), and the other oil channel of the hydraulic pump is connected with the group valve (9) through the revolving joint (10); and the group valve (9) is provided with two oil channels which are respectively connected with a traveling motor through the revolving joint (10), and is respectively connected with a plurality of hydrocylinders (13) through the oil channels and connected with the revolving motor (4) through one oil channel.

Description

Static balance formula centre of gravity excavator

Technical field:

The utility model is relevant with 360 ° of full hydraulic crawler excavators that rotate.

Background technology:

Organic frame is connected with pivoting support above the running gear of existing 360 ° of full rotation hydraulic crawler excavators, and pivoting support is connected with panoramic table.Running gear is made up of mobile roof support, running motor, sprocket wheel.Driver's cabin, excavating gear, the motor of power set, hydraulic pump, oil piping system, rotary motor, fuel tank, counterweight is formed panoramic table.Because the quality of working portion and panoramic table accounts for the over half of entire machine and is positioned at the pivoting support top, make the height of C.G. of entire machine very high, anti-rollover performance is poor during machine works, produces when revolution and stall to pass through the quality impact greatly, thereby has limited speed of gyration.Because the quality of rotating part is big, consumption of engine power is many, and power consumption is high.

The utility model content:

The purpose of this utility model provide a kind of simple in structure, little, the anti-rollover performance of power consumption is poor, the little static balance formula centre of gravity excavator of inertia is impacted in revolution.

The utility model is achieved in that

The utility model static balance formula centre of gravity excavator, comprise frame, running gear, power set, counterweight, pivoting support and driver's cabin, casing 7 is positioned on the running gear and is connected with frame, motor 1, hydraulic pump 2, fuel tank 3, counterweight 6 is positioned at casing 7, pivoting support 8 is connected with panoramic table 5 on being positioned at casing 7, driver's cabin, rotary motor 4 and equipment are positioned on the panoramic table 5, panoramic table 5 is connected with pivoting support 8, swivel coupling 10 on pivoting support 8 and the casing is rotatably assorted, the electric wire of motor 1 is connected by the interior operation bench of swivel coupling 10 and driver's cabin, the clutch end of motor 1 is connected with hydraulic pump 2, one oil circuit of hydraulic pump is connected with valve group 9 with swivel coupling 10 by fuel tank 3, another oil circuit is connected with valve group 9 by swivel coupling 10, valve group 9 has two oil circuits respectively to be connected with a running motor by swivel coupling 10 respectively, and valve group 9 is connected with some hydraulic cylinders 13 by oil circuit respectively, is connected with rotary motor 4 by an oil circuit.

Swivel coupling 10 constitutes by axle core 15 with shell 16 that the axle core is rotatably assorted, on the fitting face of shell and axle core oil groove 17 and oil sealing 18 are arranged, shell 6 is connected with panoramic table 5, axle core 15 is connected with casing 7, axle has oil duct 19 to be connected with oil groove 17 on the core 15 and is connected with oil circuit by swivel coupling 10 respectively by joint, there is through hole 20 at the center of axle core 15, there is circuit revolution slip ring 21 to be connected above the axle core with electric wire 22, the motor 1 that electric wire 22 passes in hole 20 and the casing 7 is connected, circuit revolution slip ring 21 contacts with carbon brush 23 on the panoramic table 5, and carbon brush 23 is connected with operation bench in the driver's cabin by electric wire.

The utility model no longer adopts the running gear of machine supporting structure and adopts body structure, motor, oil pump, fuel tank, counterweight etc. place casing under the revolving dial, reduced the center of gravity of machine, the impact inertia that anti-tumbling property when having increased work and machine revolution, stall produce, speed of gyration can design higherly.Because the quality of rotating part is little, under identical revolution moment of accelerating, the speed of wrestling is higher, and the mechanical energy loss when greatly reducing gyration and to the pollution of environment.Though motor is in the casing under the panoramic table, it is controlled and shows that signal is all by the driver's cabin operation bench of swivel coupling to the panoramic table.

Description of drawings:

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is a hydraulic scheme of the present utility model.

Fig. 3 is a swivel coupling structure chart of the present utility model.

The specific embodiment:

Frame is connected with running gear 24, and casing 7 is positioned on the running gear and is connected with track rail assembly 24, and motor 1, hydraulic pump 2, fuel tank 3 and counterweight 6 are positioned at casing 7.Pivoting support 8 is positioned on the casing 7 and is connected with panoramic table 5, rotary motor 4, driver's cabin is arranged on the panoramic table and dig equipment.

Swivel coupling 10 is by the axle core 15 that is rotatably assorted and shell 16 constitutes, oil groove 17 and oil sealing 18 are arranged on being rotatably assorted of shell 16, and shell 16 is connected with panoramic table 5, and a core 15 is connected with casing 7, a core 15 porose 20.Axle has above the core revolution slip ring 21 to be connected with electric wire 22, and electric wire 22 passes through hole 20 and is connected with motor 1, turns round slip ring 21 and contacts with carbon brush 23 on the panoramic table 5, and carbon brush 23 is connected with operation bench in the driver's cabin by electric wire.Chute 17 on the swivel coupling 10 and oil duct 19 constitute the loop, and an end in loop is connected with valve group 9, and the other end in loop is connected with fuel tank 3, hydraulic pump 2 and running motor 11,12 respectively, and fuel tank 3 is connected with hydraulic pump 2.Valve group 9 has oil circuit to be connected with a rotary motor 4 with three hydraulic cylinders 13.

Claims

1, static balance formula centre of gravity excavator, comprise frame, running gear, power set, counterweight, pivoting support and driver's cabin, it is characterized in that casing (7) is positioned on the running gear is connected with frame, motor (1), hydraulic pump (2), fuel tank (3), counterweight (6) is positioned at casing (7), pivoting support (8) is connected with panoramic table (5) on being positioned at casing (7), driver's cabin, rotary motor (4) and equipment are positioned on the panoramic table (5), panoramic table (5) is connected with pivoting support (8), swivel coupling (10) on pivoting support (8) and the casing is rotatably assorted, the electric wire of motor (1) is connected by the interior operation bench of swivel coupling (10) and driver's cabin, the clutch end of motor (1) is connected with hydraulic pump (2), one oil circuit of hydraulic pump is connected with valve group (9) with swivel coupling (10) by fuel tank (3), another oil circuit is connected with valve group (9) by swivel coupling (10), valve group (9) has two oil circuits, and each is connected with a running motor by swivel coupling (10) respectively, valve group (9) is connected with some hydraulic cylinders (13) by oil circuit respectively, is connected with rotary motor (4) by an oil circuit.

2, excavator according to claim 1, it is characterized in that swivel coupling (10) is made of axle core (15) and the shell (16) that is rotatably assorted with the axle core, on the fitting face of shell and axle core oil groove (17) and oil sealing (18) are arranged, shell (6) is connected with panoramic table (5), axle core (15) is connected with casing (7), there is oil duct (19) to be connected on axle core (15) and is connected with oil circuit respectively by swivel coupling (10) by joint with oil groove (17), there is through hole (20) at the center of axle core (15), there is circuit revolution slip ring (21) to be connected above the axle core with electric wire (22), the motor (1) that electric wire (22) passes in hole (20) and the casing (7) is connected, circuit revolution slip ring (21) contacts with carbon brush (23) on the panoramic table (5), and carbon brush (23) is connected with operation bench in the driver's cabin by electric wire.