CN202064824U

CN202064824U - Rotary power head of coaxial transmission drill

Info

Publication number: CN202064824U
Application number: CN 201120194839
Authority: CN
Inventors: 罗佑新; 文会军; 周宇
Original assignee: HUNAN HENGZHI DRILLING TECHNOLOGY Co Ltd; Hunan University of Arts and Science
Current assignee: HUNAN HENGZHI DRILLING TECHNOLOGY Co Ltd; Hunan University of Arts and Science
Priority date: 2011-06-10
Filing date: 2011-06-10
Publication date: 2011-12-07
Anticipated expiration: 2021-06-10

Abstract

The utility model discloses a rotary power head of a coaxial transmission drill. An input gear shaft, a bull gear A, a bull gear B, an intermediate gear shaft and an output shaft form a coaxial transmission reduction device; the center of the input gear shaft is coaxial with the center of the output shaft; a stander is fixed on a box body; a motor is fixed on the stander and is connected with the input gear shaft; the input gear shaft is supported against the box body through a bearing C and a bearing D; an air chamber is provided with an air inlet hole and is fixed on a large end cover through a flange; a seal A and a seal B are matched with the air chamber and the output shaft; a radial hole on the output shaft is communicated with the air chamber; and the output shaft is provided with an internal threaded hole. The rotary power head has the advantages that: the device overcomes the defects of the conventional speed reducer and rotary power head; a universal series is provided for the speed reducer; and the rotary power head of a rock drill, which is convenient to disassemble and assemble, small in radial size, large in transfer torque and suitable for heavy load, is provided for the drill.

Description

A kind of with through-drive rig rotary motive power head

Technical field

The utility model relates to a kind of rock drilling machinery equipment, is a kind of with through-drive rig rotary motive power head specifically.

Background technology

Various rigs are widely used in the engineering explosion hole drill cutter operations such as metallurgy, railway, mine, building materials, highway.Rig rotary motive power head is one of critical component of rig, its speed change gear requires in light weight, barycenter is low, high-speed cutting is bored the rotary motive power head and is required the dynamic equilibrium characteristic good, and gear range is big, but existing universal speed reducer radial dimension is big, do not satisfy instructions for use, movable teeth reducer is a tooth difference eccentric wheel structure, and the dynamic equilibrium characteristic is poor, and the rotary motive power head needs specialized designs.

The utility model content

In order to overcome the deficiency that above-mentioned technology exists, technical problem to be solved in the utility model provides a kind of easy accessibility, and radial dimension is little, transfer torque is big, the same through-drive rig rotary motive power head of suitable heavy load.

The technical solution of the utility model is: a kind of with through-drive rig rotary motive power head, comprise motor, frame, casing, bearing A, circlip A, gear wheel A, intermediate gear shaft, bearing B, big end cap, flange, air chamber, little end cap, bearing C, input tooth axle, bearings D, bearing E, circlip B, gear wheel B, circlip C, bearing F, sealing A, sealing B, output shaft, it is characterized in that, input tooth axle, gear wheel A, gear wheel B, intermediate gear shaft and output shaft constitute coaxial transmission decelerating device, input tooth axle is coaxial with the output shaft center, frame is fixed on the casing, motor is fixed on the frame, and be connected with input tooth axle, input tooth axle is by bearing C, bearings D is bearing on the casing, air inlet is arranged on the air chamber, air chamber is fixed on the big end cap by flange, sealing A and sealing B and air chamber, output shaft cooperates, radial hole communicates with air chamber on the output shaft, and internal thread hole is arranged on the output shaft.

Described air chamber can also be made an integral body with flange and directly be fixed on the big end cap.

The utility model has the advantages that: this device has overcome the deficiency of existing reducer and rotary motive power head, for reducer provides a kind of general series, for rig provides a kind of easy accessibility, radial dimension is little, transfer torque is big, the rock drilling machinery rotary motive power head of suitable heavy load.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

Now in conjunction with the accompanying drawings, technology contents of the present utility model is described further.

As shown in Figure 1, input tooth axle 14, gear wheel A6, gear wheel B18, intermediate gear shaft 7 and output shaft 23 constitute coaxial transmission decelerating device, input tooth axle 14 is coaxial with output shaft 23 centers, on an axis of deceleration part, just can realize double reduction like this, effective appearance volume of reduction box is fully utilized, obtain maximum speed ratio, frame 2 is fixed on the casing 3, motor 1 is fixed on the frame 2, and be connected with input tooth axle 14, input tooth axle 14 is by bearing C13, bearings D 15 is bearing on the casing 3, on the air chamber 11 air inlet is arranged, air chamber 11 is fixed on the big end cap 9 by flange 10, sealing A21 and sealing B22 and air chamber 11, output shaft 23 cooperates, radial hole communicates with air chamber 11 on the output shaft 23, on the output shaft 23 internal thread hole is arranged.The gear-profile of two gear pairs can be involute, cosine allusion quotation line, two circular curve, elongated line, and is the conjugate curves of corresponding tooth curve with another gear-profile of gears engaged; Involute Gear Pair is profile modified gear or modification coefficient and greater than 1 big profile modified gear; Gear wheel A6, gear wheel B18 size make gear and are fixed on the respective members again when big, size hour makes shaft gear with axle; Gear on the intermediate gear shaft 7 also makes gear separately and is fixedly connected with axle formation when gear size is big; By the number of teeth of proportioning two gear pairs, it is big to obtain gear range.Change individual wheel and just can obtain different gearratios.

Claims

1. one kind with through-drive rig rotary motive power head, comprise motor (1), frame (2), casing (3), bearing A(4), circlip A(5), gear wheel A(6), intermediate gear shaft (7), bearing B(8), big end cap (9), flange (10), air chamber (11), little end cap (12), bearing C(13), input tooth axle (14), bearings D (15), bearing E(16), circlip B(17), gear wheel B(18), circlip C(19), bearing F(20), sealing A(21), sealing B(22), output shaft (23), it is characterized in that, input tooth axle (14), gear wheel A(6), gear wheel B(18), intermediate gear shaft (7) and output shaft (23) constitute coaxial transmission decelerating device, input tooth axle (14) is coaxial with output shaft (23) center, frame (2) is fixed on the casing (3), motor (1) is fixed on the frame (2), and with the input tooth axle (14) be connected, input tooth axle (14) is by bearing C(13), bearings D (15) is bearing on the casing (3), air chamber has air inlet on (11), air chamber (11) is fixed on the big end cap (9) by flange (10), seal A(21) and sealing B(22) and air chamber (11), output shaft (23) cooperates, output shaft (23) is gone up radial hole and is communicated with air chamber (11), and output shaft has internal thread hole on (23).

2. according to claim 1 a kind of with through-drive rig rotary motive power head, it is characterized in that: described air chamber (11) can also be made an integral body with flange (10) and directly be fixed on the big end cap (9).