CN201201517Y - Wheeled digger - Google Patents

Abstract

The utility model discloses a wheel excavator, which consists of a stander, driving wheels, a cab, a dipper, a hydraulic system, a gear box, an engine and an oil pump. In the utility model, a plate type supporting device is arranged at two sides of an excavator body and between front wheels and rear wheels, and is hinged on the stander through a telescopic oil cylinder; one end of a rotating arm is also hinged on the stander; the plate type supporting device is symmetrically fixed between the driving wheels at two sides of the excavator body through the stander; and a box body of a full power take-off device is arranged between the engine and the gear box and is sealed with the engine and the gear box in the same large box body. Therefore, the wheel excavator has the advantages of effectively improving the stability of mechanical operation, overcoming the deformation of flexural moment of the excavator body, improving work applying capability on the promise of saving oil, reducing energy and mechanical cost, prolonging service life of the oil pump, and improving economic benefit.

Description

Wheel shovel

Affiliated technical field

The utility model relates to a kind of wheel shovel, belongs to construction machinery and equipment manufacturing technology field.

Background technology

Excavating machine can be divided into crawler type and wheeled two kinds, four legs landed fuselage propped tire are not stressed before and after existing wheeled excavating machine operation supported and adopts, because the supporting leg bond area is minimum, pressure is big, poor stability, meet the potential danger of toppling of soft soil property, supporting leg exposes and exceeds vehicle body influence and turn to; In addition, since oil pump and driving engine direct connection, the rotating speed height, the oil pump radial force is bigger, and in locomotive driving, oil pump and driving engine still are on line state, have not only increased the loss of the energy, also can quicken the damage of oil pump, increase the excavator operation cost.

Summary of the invention

The utility model is at the problems referred to above, a kind of wheel shovel is provided, it both can effectively increase mechanical work stability, overcome the deformation of fuselage moment of flexure, can under the prerequisite of saving oil plant, improve excavating machine acting ability again, reduce the energy, machine cost, prolong oil pump service life, increase economic efficiency.

The technical solution of the utility model is as follows: this machine is made of frame, drive wheel, operator's compartment, dipper, hydraulic efficiency pressure system, change speed gear box, driving engine and oil pump, it adopts board-like bracing or strutting arrangement is arranged at position between body both sides, the front and back wheel, and be articulated on the frame by telescopic oil cylinder, one end of its pivot arm also is articulated on the frame, above-mentioned board-like bracing or strutting arrangement is symmetrically fixed between the drive wheel of excavating machine body both sides by frame, the casing of full power power takeoff is arranged between driving engine and the change speed gear box, and is closed in the same big casing with them; Described board-like bracing or strutting arrangement, the telescopic boom of its telescopic oil cylinder and the middle part of pivot arm are hinged, these pivot arm two ends are articulated in respectively on frame and the middle stay bearing plate, stay bearing plate both sides hinge-point is hinged with the back and front supporting plate respectively in being somebody's turn to do, and adopt the cylinder body of rotary oil cylinder to captive joint with middle stay bearing plate, the mandrel of rotary oil cylinder is captiveed joint with the back and front supporting plate; Described full power power takeoff, this device is formed by driven wheel, cliding gear, reducing gear and axle thereof and bearing are set in the casing, wherein, gear shaft has drawn from and is associated in change speed gear box I axle on the driving engine by power-transfer clutch, therefore this axle is lengthened out, shift fork is set on the cliding gear, and change gear shaft connects oil pump outside the casing of full power power takeoff.

The utility model adopts the folding stay bearing plate of telescopic oil cylinder connection to constitute board-like bracing or strutting arrangement, during work, before at first inciting somebody to action by rotary oil cylinder, stay bearing plate at grade during rear bearing sheet rotated to, by flexible piston pivot arm is paid again, driving stay bearing plate simultaneously all lands, break away from not load-bearing of ground up to the excavating machine tyre rim, after this just can carry out digging operation, board-like support has increased bond area, improves and guaranteed the stability of excavator operation, increased the excavating machine scope that fetches earth, during inoperative, flexible piston of dependence and rotary oil cylinder draw all constituent elementss in and are close to the body both sides, after resetting, compact conformation conveniently travels; The full power power takeoff is fetched power by driving engine, the drive driven wheel rotates, pass through cliding gear, the reducing gear axle reaches oil pump, thereby drive the oil pump running, when moving to cliding gear with driven wheel, shift fork breaks away from, just can cut off propulsion source, oil pump shuts down, oil pump breaks away from power when realizing the locomotive walking, avoids oil pump to wear and tear because of flogging a dead horse, in the work, oil pump shaft is not influenced by diametral load, through rev down, can further prolong oil pump service life, this installs between driving engine and change speed gear box, the vehicle body increase in volume is little, neither influence connecting of driving engine and change speed gear box, can reach the purpose that power is transported to oil pump again, this machine is particularly useful for the rural area, the uneven road walking in small towns.

Description of drawings

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

Fig. 1 is the utility model integral structure sketch

Fig. 2 is the board-like support device structure view of the utility model

Fig. 3 is that the A-A of the board-like support device structure view of the utility model is to cutaway view

Fig. 4 is the utility model full power power takeoff topology view

Fig. 5 is that the A-A of the utility model full power power takeoff topology view is to cutaway view

Among the figure: 1. frame, 2. drive wheel, 3. operator's compartment, 4. dipper, 5. hydraulic efficiency pressure system, 6. change speed gear box, 7. driving engine, 8. oil pump, 9. board-like bracing or strutting arrangement, 10. stay bearing plate, 13. front end panels, 14. rear bearing sheets, 15. rotary oil cylinders, 16. full power power takeoffs, 17. casings, 18. driven wheels, 19. cliding gears, 20. reducing gear, 21. shift forks, 22. big casings in telescopic oil cylinder, 11. pivot arms, 12..

The specific embodiment

With reference to accompanying drawing 1,2,3,4,5, this machine is by frame [1], drive wheel [2], operator's compartment [3], dipper [4], hydraulic efficiency pressure system [5], change speed gear box [6], driving engine [7] and oil pump [8] constitute, it adopts board-like bracing or strutting arrangement [9] is arranged at the body both sides, position between the front and back wheel, and be articulated on the frame [1] by telescopic oil cylinder [10], one end of its pivot arm [11] also is articulated on the frame, above-mentioned board-like bracing or strutting arrangement is symmetrically fixed between the drive wheel [2] of excavating machine body both sides by frame, the casing [17] of full power power takeoff [16] is arranged between driving engine [7] and the change speed gear box [6], and is closed in the same big casing [22] with them; Described board-like bracing or strutting arrangement [9], the middle part of telescopic boom of its telescopic oil cylinder [10] and pivot arm [11] is hinged, these pivot arm two ends are articulated in respectively on frame and the middle stay bearing plate [12], should in stay bearing plate both sides hinge-points hinged with back and front supporting plate [13], [14] respectively, and adopt the cylinder body of rotary oil cylinder [15] to captive joint with middle stay bearing plate, the mandrel of rotary oil cylinder is captiveed joint with the back and front supporting plate; Described full power power takeoff [16], this device is formed by driven wheel [18], cliding gear [19], reducing gear [20] and axle thereof and bearing are set in the casing [17], wherein, gear shaft has drawn from and is associated in change speed gear box I axle on the driving engine by power-transfer clutch, therefore this axle is lengthened out, shift fork [21] is set on the cliding gear, and change gear shaft connects oil pump [8] outside the casing [17] of full power power takeoff.

Claims (3)

1, a kind of wheel shovel, it is made of frame [1], drive wheel [2], operator's compartment [3], dipper [4], hydraulic efficiency pressure system [5], change speed gear box [6], driving engine [7] and oil pump [8], it is characterized in that: board-like bracing or strutting arrangement [9] is arranged at position between body both sides, the front and back wheel, and be articulated on the frame [1] by telescopic oil cylinder [10], one end of its pivot arm [11] also is articulated on the frame, and above-mentioned board-like bracing or strutting arrangement is symmetrically fixed between the drive wheel [2] of excavating machine body both sides by frame; Full power power takeoff [16] is arranged between driving engine [7] and the change speed gear box [6] by casing [17], and is closed in the same big casing [22] with them.

2, wheel shovel as claimed in claim 1, it is characterized in that: described board-like bracing or strutting arrangement [9], hinged among telescopic boom of its telescopic oil cylinder [10] and the pivot arm [11], this pivot arm other end and middle stay bearing plate [12] are hinged, should in stay bearing plate both sides hinge-points hinged with back and front supporting plate [13], [14] respectively, and adopt the cylinder body of rotary oil cylinder [15] to captive joint with middle stay bearing plate, the mandrel of rotary oil cylinder is captiveed joint with the back and front supporting plate.

3, wheel shovel as claimed in claim 1, it is characterized in that: described full power power takeoff [16], this device is formed by driven wheel [18], cliding gear [19], reducing gear [20] and axle thereof and bearing are set in the casing [17], wherein, gear shaft has drawn from and is associated in change speed gear box I axle on the driving engine by power-transfer clutch, therefore this axle is lengthened out, and shift fork [21] is set on the cliding gear, and change gear shaft outreaches oil pump [8] in the casing [17] of full power power takeoff.

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