CN220378177U

CN220378177U - High-torque drilling machine power head with buffer main shaft

Info

Publication number: CN220378177U
Application number: CN202321771289.8U
Authority: CN
Inventors: 曹建全
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-01-23
Anticipated expiration: 2033-07-07

Abstract

The utility model relates to the technical field of drilling equipment, in particular to a high-torque drilling machine power head with a main shaft with a buffer. Comprises a box body, a power device, a working main shaft and a transmission mechanism; the working spindle comprises an outer shaft sleeve and a mandrel, and the mandrel is axially assembled in the outer shaft sleeve in a spline connection mode. According to the high-torque drilling machine power head, the working main shaft is designed to be the outer shaft sleeve and the mandrel which are in spline fit, the mandrel can axially slide in the outer shaft sleeve to generate buffering, an operator can easily disassemble and assemble the drill rod and the working main shaft, threads are not damaged, and the service lives of the drill rod and the working main shaft are prolonged; meanwhile, gear shifting is realized by switching between the first gear and the second gear through the duplex gears; in the drilling process, when the torque is required to be increased, the gear IV is meshed with the gear III, the cycloid motor is started, and the torque is doubled instantly, so that the torque can be increased on the basis of not increasing the volume of the box body, and the production cost is low.

Description

High-torque drilling machine power head with buffer main shaft

Technical Field

The utility model relates to the technical field of drilling equipment, in particular to a high-torque drilling machine power head with a main shaft with a buffer.

Background

The power head of the drilling machine is a key component of drilling machine equipment and is used for installing a drill rod to drive a drill bit to drill holes. The existing drilling machine power head has the following defects: 1. the operation of disassembling and assembling the drill rod is totally based on the experience of the operator, if the control drop is improper in cooperation with the rotating speed, the threads of the drill rod and the main shaft of the power head are easily damaged, and the service life is reduced; 2. the torque of the power head of the drilling machine is increased by increasing the gear ratio, the machining process and the assembly process are complex, the precision requirement is high, the requirement on the material of accessories is high, the power head box body is overlarge, and the manufacturing cost is increased.

Disclosure of Invention

The utility model aims to provide a high-torque drilling machine power head with a main shaft with a buffer function, so as to solve the technical problems.

In order to solve the problems, the utility model adopts the following technical scheme:

a high torque drilling machine power head with a main shaft with buffer comprises a box body, a power device, a working main shaft and a transmission mechanism, wherein the working main shaft and the transmission mechanism are assembled in the box body; the power device drives the working main shaft through a transmission mechanism; the working spindle comprises an outer shaft sleeve and a mandrel, the mandrel is axially assembled in the outer shaft sleeve in a spline connection mode, and a drill rod connecting seat is arranged at the power output end of the mandrel; the two ends of the outer shaft sleeve are respectively assembled on the side wall of the box body through bearings.

Further, the transmission mechanism comprises an input shaft parallel to the working main shaft, a transmission shaft, an auxiliary shaft, transmission gears arranged on the shafts and a shifting fork arranged on the outer side wall of the box body; the input shaft, the transmission shaft and the auxiliary shaft are respectively assembled in the box body through bearings.

Still further, the transmission gear includes: the double gear is assembled on the input shaft through a spline, the first gear and the second gear are respectively fixed on two ends of the transmission shaft, the third gear which is integrated with the outer shaft sleeve, and the fourth gear which is assembled on the auxiliary shaft through a spline; the duplex gear slides along the input shaft under the shifting of the shifting fork and is meshed with the first gear or the second gear; the first gear is meshed with the third gear normally; and the fourth gear slides along the auxiliary shaft under the shifting of the shifting fork and is meshed with the gears in three phases.

Further, the power device comprises a diagonal motor and a cycloid motor; the inclined shaft Ma Dagu is fixed on a first motor seat on the side wall of the box body, and the power output end of the inclined shaft Ma Dagu is fixedly assembled in a first assembly hole at the end part of the input shaft; the cycloid Ma Dagu is fixed on a second motor seat on the side wall of the box body, and the power output end of the cycloid Ma Dagu is fixedly assembled in a second assembling hole at the end part of the auxiliary shaft.

The beneficial effects are that: compared with the prior art, the high-torque drilling machine power head has the advantages that the working main shaft is designed into the outer shaft sleeve and the mandrel which are in spline fit, the mandrel can axially slide in the outer shaft sleeve to generate buffering, an operator can easily disassemble and assemble the drill rod and the working main shaft without damaging threads, so that the service lives of the drill rod and the working main shaft are prolonged, and the operation cost is reduced; meanwhile, gear shifting is realized by switching between the first gear and the second gear through the duplex gears; in the drilling process, when the torque is required to be increased, the gear IV is meshed with the gear III, the cycloid motor is started, and the torque is doubled instantly, so that the torque can be increased on the basis of not increasing the volume of the box body, and the production cost is low.

Drawings

FIG. 1 is a schematic perspective view of a power plant of the present utility model with the power plant removed;

FIG. 2 is a schematic diagram of the front view of the power unit of the present utility model with the power unit removed;

FIG. 3 is a right side view of FIG. 2;

fig. 4 is A-A view of fig. 3.

In the figure: 1-a box body; 2-an input shaft; 21-a first assembly hole; 22-duplex gear; 3-an auxiliary shaft; 31-a second assembly hole; 32-gear IV; 4-a mandrel; 41-a drill rod connecting seat; 5-an outer sleeve; 51-gear three; 6-shifting fork; 7-a transmission shaft; 71-gear one; 72-gear two.

Detailed Description

The technical scheme of the utility model is clearly and completely described below with reference to the accompanying drawings and the specific embodiments.

Examples:

referring to fig. 1-4, the high torque drilling machine power head with a buffer main shaft in this embodiment includes a box 1, a power device (not shown in the drawing), and a working main shaft and a transmission mechanism which are assembled in the box 1. The power device drives the working main shaft through a transmission mechanism.

The working spindle comprises an outer shaft sleeve 5 and a mandrel 4, the mandrel 4 is axially assembled in the outer shaft sleeve 5 in a spline connection mode, and a drill rod connecting seat 41 is arranged at the power output end of the mandrel; the two ends of the outer sleeve 5 are respectively assembled on the side wall of the box body 1 through bearings. The working spindle is designed into an outer shaft sleeve 5 and a mandrel 4 which are in spline fit, the mandrel 4 can axially slide in the outer shaft sleeve 5 to generate buffering, an operator can easily disassemble and assemble the drill rod and the working spindle, threads are not damaged, and the service lives of the drill rod and the working spindle are prolonged.

The transmission mechanism comprises an input shaft 2 parallel to the working main shaft, a transmission shaft 7, an auxiliary shaft 3, transmission gears arranged on the shafts and a shifting fork 6 arranged on the outer side wall of the box body 1; the input shaft 2, the transmission shaft 7 and the auxiliary shaft 3 are respectively assembled in the box body 1 through bearings.

The transmission gear includes: a duplex gear 22 spline-assembled on the input shaft 2, a first gear 71 and a second gear 72 fixed on both ends of the transmission shaft 7 respectively, a third gear 51 integrated with the outer sleeve 5, and a fourth gear 32 spline-assembled on the auxiliary shaft 3; the duplicate gear 22 slides along the input shaft 2 under the stirring of the shifting fork 6 and is meshed with the first gear 71 or the second gear 72; gear one 71 is in constant mesh with gear three 51; the fourth gear 32 slides along the auxiliary shaft 3 under the stirring of the shifting fork 6 and is meshed with the third gear 51.

The power unit comprises a diagonal motor and a cycloidal motor (both motors and their assembly are prior art and are not shown in the drawings).

The inclined shaft motor is a main power device and is fixed on a first motor seat on the side wall of the box body, and the power output end of the inclined shaft motor is fixedly assembled in a first assembly hole 21 at the end part of the input shaft 2. The input shaft 2 can be driven by starting the tilt-axis motor. The shifting fork 6 is used for shifting the duplex gear 22 to slide along the input shaft 2, so that the duplex gear is switched between the first gear 71 and the second gear 72, and gear shifting can be realized.

The cycloid motor is an auxiliary power device and is fixed on a second motor seat on the side wall of the box body, and the power output end of the cycloid motor is fixedly assembled in a second assembly hole 31 at the end part of the auxiliary shaft 3. In the drilling process, when the torque is required to be increased, the shifting fork 6 is used for shifting to enable the gear IV 32 to be meshed with the gear III 51, and after the cycloid motor is started, the torque class of the power head is doubled instantaneously.

The structure, assembly mode and working principle of the fork 6 for controlling the duplicate gear 22 and the fourth gear 32 are all well known to those skilled in the art, and are not described herein.

The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures made by the description of the utility model and the accompanying drawings are directly or indirectly applied to other related technical fields, which are all within the scope of the utility model.

Claims

1. A high torque drilling machine power head with a main shaft with buffer comprises a box body (1), a power device, a working main shaft and a transmission mechanism, wherein the working main shaft and the transmission mechanism are assembled in the box body (1); the power device drives the working main shaft through a transmission mechanism; the method is characterized in that: the working spindle comprises an outer shaft sleeve (5) and a mandrel (4), the mandrel (4) is axially assembled in the outer shaft sleeve (5) in a spline connection mode, and a drill rod connecting seat (41) is arranged at the power output end of the mandrel; two ends of the outer sleeve (5) are respectively assembled on the side wall of the box body (1) through bearings.

2. The buffered high torque drill bit of claim 1 wherein: the transmission mechanism comprises an input shaft (2) parallel to the working main shaft, a transmission shaft (7), an auxiliary shaft (3), transmission gears arranged on the shafts and a shifting fork (6) arranged on the outer side wall of the box body (1); the input shaft (2), the transmission shaft (7) and the auxiliary shaft (3) are respectively assembled in the box body (1) through bearings.

3. The buffered high torque drill bit of claim 2 wherein: the transmission gear includes: the double-linked gear (22) is assembled on the input shaft (2) through a spline, the first gear (71) and the second gear (72) are respectively fixed on two ends of the transmission shaft (7), the third gear (51) which is integrated with the outer sleeve (5) and the fourth gear (32) which is assembled on the auxiliary shaft (3) through a spline; the duplex gear (22) slides along the input shaft (2) under the stirring of the shifting fork (6) and is meshed with the first gear (71) or the second gear (72); the first gear (71) is in constant mesh with the third gear (51); and the fourth gear (32) slides along the auxiliary shaft (3) under the stirring of the shifting fork (6) and is meshed with the third gear (51).

4. A buffered high torque drill bit of the spindle band of claim 3, wherein: the power device comprises a bevel shaft motor and a cycloid motor; the inclined shaft Ma Dagu is fixed on a first motor seat on the side wall of the box body, and the power output end of the inclined shaft Ma Dagu is fixedly assembled in a first assembly hole (21) at the end part of the input shaft (2); the cycloid Ma Dagu is fixed on a second motor seat on the side wall of the box body, and the power output end of the cycloid Ma Dagu is fixedly assembled in a second assembling hole (31) at the end part of the auxiliary shaft (3).