CN103912216A - Power head of forpoling rig - Google Patents

Abstract

The invention relates to a power head of a pipe shed drilling machine, which comprises a hydraulic motor (2), a hollow main shaft (3), a driving gear (41), a driven gear (42), keys (51, 52), round nuts ( 61, 62), deep groove ball bearing (7), sealing ring (8), end cover (91, 92), tapered roller bearing (10), sleeve (11), gear box (12), cylindrical roller Bearing (13) and clamp (1). During work, the drill rod is installed in the hollow main shaft (3) and clamped by the clamp (1). The invention can conveniently and quickly disassemble and assemble the drill pipe from the rear end of the power head of the pipe shed drilling rig, reduces the time for disassembling and assembling the drill pipe, and effectively improves the drilling construction efficiency.

Description

A power head of a pipe shed drilling rig

technical field

The invention relates to a pipe shed drilling rig power head capable of installing a drill pipe from the rear end of the power head. The pipe shed drilling rig power head is mainly used in technical fields such as pipe shed drilling rigs.

Background technique

The pipe-shelf advance support method is a new technology developed in recent years for tunneling in weak surrounding rocks. The pipe-shelf drilling rig is the most critical equipment in the construction technology of the pipe-shelf method. Its function is to drill ahead along the outer contour of the tunnel section. Enter and install the pipe shed. The power head of the pipe shed drilling rig is the core part of the pipe shed drilling rig. The existing pipe shed drilling rig power head adopts the scheme of installing the drill pipe from the front end of the power head. When replacing the drill pipe, first separate the drill pipe from the power head, and then connect the new drill pipe with the drilled drill pipe and the power head respectively. When the drill pipe that has been drilled does not coincide with the rotary axis of the power head, the installation of the drill pipe becomes a difficult problem in construction and has a great impact on the construction progress.

Contents of the invention

In order to overcome the problem of difficulty in installing drill pipes in the construction of existing pipe shed drilling rigs, the invention provides a power head for pipe shed drilling rigs. The power head can conveniently install drill pipes from the rear end of the power head to speed up the construction progress. Double clamps, drive more reliable.

The technical solution adopted by the present invention to solve the technical problem is: the power head of the pipe shed drilling rig includes a hydraulic motor, a hollow main shaft, a driving gear, a driven gear, a key, a round nut, a deep groove ball bearing, a sealing ring, an end cover, a cone Roller bearings, sleeves, gear boxes, cylindrical roller bearings and fixtures, characterized in that two hydraulic motors are installed on the gear box, the output shaft of the hydraulic motor is connected with the driving gear, fixed circumferentially by keys, and fixed by round nuts Axially fixed, and the output shaft of the hydraulic motor and the gearbox are connected through deep groove ball bearings; the main shaft is installed in the gearbox, the driven gear is installed on the main shaft, fixed circumferentially by keys, and connected by sleeves and tapered roller bearings , round nut, axially fixed, cylindrical roller bearings are installed on the other side of the main shaft, tapered roller bearings and cylindrical roller bearings are fixed on the gearbox, both sides are fixed by end covers, and the driving gear and driven gear are connected Engagement; the sealing ring is installed at the contact between the end cover and the main shaft; the two ends of the main shaft are respectively equipped with clamps.

The beneficial effect of the invention is that the drill rod can be quickly and conveniently disassembled from the rear end of the main shaft, the installation time of the drill rod is reduced, and the drilling construction efficiency is effectively improved.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a sectional view of the present invention.

Fig. 2 is the external structure diagram of the power head of the pipe shed drilling rig.

In the figure 1. fixture, 2. hydraulic motor, 3. main shaft, 41. driving gear, 42. driven gear, 51. key, 52, key, 61. round nut, 62. round nut, 7. deep groove ball bearing , 8. Seal ring, 91. End cover, 92. End cover, 10. Tapered roller bearing, 11. Sleeve, 12. Gear box, 13. Cylindrical roller bearing.

Detailed ways

In the embodiment shown in Fig. 1 and Fig. 2, two hydraulic motors (2) are installed on the gearbox (12), and the driving gear (41) is installed on the output shaft of the hydraulic motor (2), and the key (51) is used to fixed in the axial direction through the round nut (61), the output shaft of the hydraulic motor (2) is connected with the gearbox (12) through the deep groove ball bearing (7); the driven gear (41) is installed on the main shaft (3), Circumferentially fixed by key (52), axially fixed by sleeve (11), tapered roller bearing (10), round nut (62), driven gear (42) meshes with driving gear (41); main shaft ( 3) The cylindrical roller bearing (13) is installed on the other side, the tapered roller bearing (10) and the cylindrical roller bearing (13) are respectively fixed on the reduction box (12) and fixed by the end covers (91, 92) respectively , a sealing ring (8) is arranged at the contact between the end cover (91, 92) and the main shaft (3); clamps (1) are installed at both ends of the main shaft (3). The hydraulic motor (2) drives the main shaft (3) to rotate and drill. The drill pipe is installed in the hollow main shaft (3) and clamped by the clamp (1). The drill pipe can be quickly and conveniently disassembled from the rear end of the main shaft (3). .

Claims (3)

1. a pipe canopy drill power head, is characterized in that: this machine comprises hydraulic motor (2), open-core type main shaft (3), driving gear (41), driven gear (42), key (51,52), round nut (61,62), deep groove ball bearing (7), sealing ring (8), end cap (91,92), taper roll bearing (10), sleeve (11), gear-box (12), cylinder roller bearing (13) and fixture (1).

2. pipe canopy drill power head according to claim 1, is characterized in that described main shaft (3) is for open-core type structure, and main shaft (3) two ends are provided with fixture (1).

3. pipe canopy drill power head according to claim 1, is characterized in that, on described gear-box (12), two hydraulic motors (2) are installed, drive shaft (3) revolution.