CN201193477Y

CN201193477Y - Power head of electric spiral digging drill

Info

Publication number: CN201193477Y
Application number: CNU2007200421097U
Authority: CN
Inventors: 王来鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-08
Filing date: 2007-11-08
Publication date: 2009-02-11
Anticipated expiration: 2017-11-08

Abstract

The utility model relates to a power device of a spin drilling rig in the construction field, in particular to an electric spin drilling rig power head. The power head comprises double electric motors, a power head guider, a three-ring planetary reducer and an output shaft; wherein, the double electric motors are reversely mounted on the shell of the three-ring planetary reducer; the output ends of the double electric motors are respectively connected with the input ends of the three-ring planetary reducer; the double electric motors drive the three-ring planetary reducer to operate, providing powerful torque force to the three-ring planetary reducer; and because the output end of the three-ring planetary reducer has a hollow structure, assembly is more compact, convenient and reasonable. The electric spin drilling rig power head can replace imported hydraulic motors to serve as a power input, and avoid the defects of the hydraulic motor-driven power head, including expensiveness and inconvenient processing and maintenance. The electric spin drilling rig power head is cheap and can be delivered timely, after-sales services are perfect, and the electric spin drilling rig power head can ensure that domestic spin drilling rigs can be produced and developed on a large scale.

Description

Electric rotary drilling rig power head

Technical field

The utility model relates to and revolves the power set that dig churn in the building field, especially a kind of electric rotary drilling rig power head.

Background technology

At present; fast development along with China's infrastructure; at highway; railway; in the construction of bridge and large-scale tall buildings thing; rotary drilling rig has obtained extensive application; and the main dependence on import of rotary drilling rig that in construction, uses at present; even if strong company of domestic a few family; though begun rotary drilling rig production; but mainly be to be assembled into the master with buying; core competitiveness is not strong, particularly as the unit head of one of rotary drilling rig core component, because of adopting the imported hydraulic motor as the power input source mostly; adopt the import planetary reducer as Poewr transmission mechanism; thereby be subjected to the price height; the Lead Time instability; the puzzlement of many relevant issues that after-sale service is untimely or the like has formed restriction to the large-scale production of domestic rotary drilling rig, has brought bottleneck effect; to this, also there is not good solution at present.

Summary of the invention

In order to satisfy the supporting demand of homemade electrodynamic type rotary drilling rig; the invention provides electric rotary drilling rig power head; this unit head can be imported as power by the import substitution hydraulic motor; that has avoided fluid motor-driven formula unit head costs an arm and a leg, processes drawback such as maintenance inconvenience etc.; its price is low; the supply of material is timely, and after-sale service is perfect, can make domestic rotary drilling rig obtain the production and the development of scale.

The concrete scheme that its technical problem that solves the utility model adopts is: this unit head comprises double motor, unit head guiding device, three belt star reductors, output shaft four parts; It is characterized in that: on the housing of these three belt star reductors, that swings to is equipped with motor, and the output of this motor is connected with three inputs that go in ring the star reductors respectively, with individual motor drives three annular star reductor runnings, provide powerful torsional forces to it; The three star reductor outputs that go in ring are the hollow type structure, like this cover installation tighter play convenient and reasonable.

Its beneficial effect is: the unit head of this rotary drilling rig; can import as power by the import substitution hydraulic motor; avoided the inconvenient drawback of processing maintenance that costs an arm and a leg of fluid motor-driven formula unit head; its price is low; the supply of material in time; after-sale service is perfect, can make domestic rotary drilling rig obtain the production and the development of scale.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and the embodiments;

Accompanying drawing 1 is a Facad structure schematic diagram of the present utility model;

Accompanying drawing 2 is a side structure schematic diagram of the present utility model;

Among the figure, 1 motor, 2 unit head guiding devices, 3 three belt star reductors, 4 output shafts.

The specific embodiment

In Fig. 1,2, motor 1 is an inversion type, the output shaft of motor, directly insert in the three belt star reductors 3, fixedly connected with three power shafts 4 that go in ring star reductors 3, for high-power is provided, change the double motor formula into, make power more powerful like this, the dismounting maintenance of also being more convenient for, this motor power (output) value can be determined according to the design of rotary drilling rig model system.

In Fig. 1,2, the utility model is except three belt star reductors, all the other are the outsourcing finished parts, and three belt star reductor casing and gears, its casing is general welded construction form, its gear can be processed with general system tooth equipment, and this reductor is the reductor of large speed ratio formula, and its speed ratio value is 50～100.

In Fig. 1,2, speed reducer output shaft of the present utility model is the hollow type structure, and this structure is more convenient for overlapping with the power shaft of next mechanism and is connected, and also is more convenient for installing and dismounting, makes that structure is tighter plays rationally.

Claims

1. electric rotary drilling rig power head is characterized in that: this unit head comprises 2 motor (1), unit head guiding device (2), three go in ring star reductors (3), output shaft (4) four parts; It is characterized in that: three go in ring on the housing of star reductors (3) at this, that swings to is equipped with 2 motor (1), the output of double motor (1), and the input with three-ring gear reducer (3) is connected respectively.

2. electric rotary drilling rig power head according to claim 1 is characterized in that: three belt star reductor 3 outputs are the hollow type structure, and its speed ratio value is: 50～100.