CN211115984U

CN211115984U - Driving mechanism for cutting head of heading machine

Info

Publication number: CN211115984U
Application number: CN201921526112.5U
Authority: CN
Inventors: 徐春华; 刘建华; 周薇; 唐朝; 李小苏; 卢志辉
Original assignee: Shaoguan Casting Forging Machinery Equipment Co ltd
Current assignee: Shaoguan Casting Forging Machinery Equipment Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-28
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to a heading machine cutterhead actuating mechanism, it includes: the inner wall of the shell is provided with a sliding chute, and the extending direction of the sliding chute is parallel to the axial direction of the shell; the stator assembly comprises a stator core, a stator winding and a hydraulic oil cylinder, wherein a convex block matched with the sliding groove is arranged on the stator core, the stator winding is arranged on the stator core, and the hydraulic oil cylinder drives the stator core to move along the sliding groove; the rotor assembly comprises a driving shaft and a plurality of permanent magnet assemblies, and the permanent magnet assemblies are arranged on the outer wall of the driving shaft along the axial direction of the driving shaft; one end of the main shaft is fixedly connected with the cutting head, and the other end of the main shaft is fixedly connected with the driving shaft. The driving mechanism of the cutting head of the heading machine simplifies the driving structure of the cutting head which is the main working part of the heading machine, effectively improves the reliability of the driving mechanism of the cutting head, and reduces the consumption of materials, oil materials and energy.

Description

Driving mechanism for cutting head of heading machine

Technical Field

The utility model relates to a entry driving machine technical field especially relates to an entry driving machine cutterhead actuating mechanism.

Background

Referring to fig. 1 and 2, fig. 1 is an external schematic view of a conventional ripper cutter head driving mechanism, and fig. 2 is an internal schematic view of the conventional ripper cutter head driving mechanism. The driving mechanism of the cutting head of the heading machine comprises the cutting head, a cantilever beam, a motor outer cover, a gear set transmission, a coupler and a motor. Wherein, the cantilever beam arm is fixedly arranged on the outer cover of the motor. The cutting head is rotatably arranged on the cantilever beam arm through the spindle. The gear set transmission is fixedly arranged in the cantilever beam arm. The motor is fixedly arranged in the motor outer cover, an output shaft of the motor is connected to the input end of the gear set transmission through the coupler, and the output end of the gear transmission is connected to the cutting head through the spindle.

The working principle of the cutting head driving mechanism of the traditional heading machine is as follows: the motor drives the gear set transmission to work through the coupler, the output end of the gear set transmission rotates and drives the main shaft to rotate, so that the cutting head assembled on the main shaft is driven to rotate, cutting teeth arranged on the cutting head extrude and crush rocks through rotary motion, and the rock stratum tunneling function is achieved.

This conventional drive has been used for many years, but has the following disadvantages: firstly, the gear set transmission is loaded and has high noise; energy is converted and transmitted through a gear set transmission, so that the efficiency is low and the energy consumption is high; thirdly, the lubrication requirement on the gear set transmission is high, and the gear is often damaged due to poor lubrication; fourthly, the overload impact resistance of the gears in the gear set transmission is not strong, once hard rocks (which often occur when faults occur in actual production) are clamped in broken rock stratums, a control system does not react timely, so that the gear set bears impact overload, the gear surface of the gear is damaged slightly to cause unstable operation and increased noise, and the gear is broken seriously to cause production interruption; and energy is converted and transmitted through a gear set, and due to the limitation of installation space, the working capacity of a gear set transmission is limited, so that the peak torque force of the cutting head is limited, and harder rock cannot be crushed (generally, granite cannot be directly crushed). According to statistics, once a traditional cutting head driving mechanism of the heading machine fails in actual production, the driving mechanism belongs to main failures of the heading machine, and the failure rate of the driving mechanism accounts for more than 30%.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims to provide a heading machine cutterhead actuating mechanism, its drive structure who has simplified the main working part cutterhead of heading machine has improved the reliability of cutterhead actuating mechanism effectively and has reduced material, oil and energy consumption.

A heading machine cutter head drive mechanism includes:

the inner wall of the shell is provided with a sliding chute, and the extending direction of the sliding chute is parallel to the axial direction of the shell;

the stator assembly comprises a stator core, a stator winding and a hydraulic oil cylinder, wherein a convex block matched with the sliding groove is arranged on the stator core, the stator winding is arranged on the stator core, and the hydraulic oil cylinder drives the stator core to move along the sliding groove;

the rotor assembly comprises a driving shaft and a plurality of permanent magnet assemblies, and the permanent magnet assemblies are arranged on the outer wall of the driving shaft along the axial direction of the driving shaft;

one end of the main shaft is fixedly connected with the cutting head, and the other end of the main shaft is fixedly connected with the driving shaft.

Further, the permanent magnet assembly includes a plurality of permanent magnets mounted on an outer wall of the drive shaft at equal intervals around the drive shaft axis.

Further, the structures of each permanent magnet assembly are different.

Further, the number of the permanent magnets of each permanent magnet assembly is different.

Further, the permanent magnets of each permanent magnet assembly are distributed in different manners.

Further, the main shaft is connected with the driving shaft through a coupling.

Furthermore, a front end cover and a rear end cover are respectively arranged at two ends of the shell, one end of the driving shaft is rotatably arranged on the rear end cover, and the other end of the driving shaft is rotatably arranged on the front end cover.

Further, still include the cantilever beam arm, the cantilever beam arm is installed on the shell, the coaxial rotation of main shaft sets up on the cantilever beam arm.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

Figure 1 is an external schematic view of a conventional ripper cutter head drive mechanism;

figure 2 is an internal schematic view of a conventional ripper cutter head drive mechanism;

fig. 3 is a schematic structural diagram of a cutting head driving mechanism of the heading machine according to the embodiment;

description of reference numerals:

1. a cutting head; 2. a cantilever beam arm; 3. a motor housing; 4. a gear set transmission; 5. a coupling; 6. a motor; 7. a main shaft;

100. a housing; 110. a front end cover; 120. a rear end cap; 130. a chute; 200. a stator assembly; 210. a stator core; 211. a bump; 220. a stator winding; 230. a hydraulic cylinder; 300. a rotor assembly; 310. a drive shaft; 320. a permanent magnet assembly.

Detailed Description

A driving mechanism of a cutting head of a heading machine, which is shown in figure 3, comprises a shell 100, a stator assembly 200, a rotor assembly 300, a cantilever beam 2, a spindle 7 and the cutting head 1.

Specifically, the housing 100 is provided at both ends thereof with a front cover 110 and a rear cover 120, respectively. The inner wall of the housing 100 is provided with a sliding groove 130, and the extending direction of the sliding groove 130 is parallel to the axial direction of the housing 100.

Specifically, stator assembly 200 includes stator core 210, stator windings 220, and hydraulic ram 230. Stator core 210 has a ring shape. The stator core 210 is provided with a protrusion 211 engaged with the sliding slot 130, and the stator core 210 is moved in the housing 100 by the engagement of the protrusion 211 and the sliding slot 130. The stator winding 220 is wound on the stator core 210. The hydraulic cylinder 230 is positioned in the housing 100, the hydraulic cylinder 230 is mounted on the rear end cover 120, and the end of the telescopic rod of the hydraulic cylinder 230 is fixedly connected with the stator core 210.

Specifically, the rotor assembly 300 includes a drive shaft 310, a number of permanent magnet assemblies 320. The driving shaft 310 is rotatably disposed in the casing 100, and the axis of the driving shaft 310 is aligned with the axis of the casing 100, and more specifically, one end of the driving shaft 310 is rotatably disposed on the rear cover 120 through a bearing, and the other end of the driving shaft 310 is rotatably disposed on the front cover 110 through a bearing. The permanent magnet assembly 320 is disposed on the outer sidewall of the driving shaft 310 in the axial direction of the driving shaft 310. The permanent magnet assembly 320 includes a plurality of permanent magnets circumferentially arrayed on the outer sidewall of the drive shaft 310 at equal intervals around the axis of the drive shaft 310. In addition, the structures of the permanent magnet assemblies 320 are different, and the structures may be different in the number of the permanent magnets or in the distribution manner of the permanent magnets, and may be designed according to specific needs, which is not limited herein.

Specifically, the cantilever arm 2 is mounted on the front end cover 110.

Specifically, the spindle 7 is rotatably disposed in the cantilever beam arm 2, the axis of the spindle 7 and the axis of the cantilever beam arm 2 are located on the same straight line, one end of the spindle 7 is fixedly connected with the driving shaft 310 through the coupler 5, and the other end of the spindle 7 is fixedly connected with the cutting head 1.

Compared with the prior art, entry driving machine cutterhead actuating mechanism by the rotatory broken acting of electromagnetic force direct drive cutterhead 1, specifically, adopt stator module 200 to produce the electromagnetic force and drive rotor subassembly 300 rotatory, it is rotatory directly to drive main shaft 7 through rotor subassembly 300 after that, has cancelled the gearbox, no gear contact friction, energy conversion is efficient, and torsion is bigger, and the quiet noise of operation is little, has more stopped to lead to the gear to collapse the defect when broken stereoplasm fault. And moreover, the rotating speed during tunneling and crushing can be intelligently controlled in real time, and the idling energy consumption is further reduced. In addition, different permanent magnet assemblies 320 are arranged on the driving shaft 310, and the hydraulic oil cylinder 230 drives the stator winding 220 to move so that the stator winding 220 can correspond to the different permanent magnet assemblies 320, so that the heading machine has a wider torsion range and a wider rotating speed range to adapt to more working environments.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a entry driving machine cutterhead actuating mechanism which characterized in that, entry driving machine cutterhead actuating mechanism includes:

the inner wall of the shell (100) is provided with a sliding groove (130), and the extending direction of the sliding groove (130) is parallel to the axial direction of the shell (100);

the stator assembly (200) comprises a stator core (210), a stator winding (220) and a hydraulic oil cylinder (230), wherein a convex block (211) matched with the sliding groove (130) is arranged on the stator core (210), the stator winding (220) is arranged on the stator core (210), and the hydraulic oil cylinder (230) drives the stator core (210) to move along the sliding groove (130);

a rotor assembly (300) including a driving shaft (310), a plurality of permanent magnet assemblies (320), the permanent magnet assemblies (320) being disposed on an outer wall of the driving shaft (310) along an axial direction of the driving shaft (310);

one end of the main shaft (7) is fixedly connected with the cutting head (1), and the other end of the main shaft is fixedly connected with the driving shaft (310).

2. The roadheader cutter head drive mechanism of claim 1, characterized in that: the permanent magnet assembly (320) comprises a plurality of permanent magnets which are mounted on the outer wall of the drive shaft (310) at equal intervals around the axis of the drive shaft (310).

3. The roadheader cutter head drive mechanism of claim 2, characterized in that: the structures of the permanent magnet assemblies (320) are different.

4. A heading machine cutter head drive mechanism according to claim 3, wherein: the number of permanent magnets of each permanent magnet assembly (320) is different.

5. A heading machine cutter head drive mechanism according to claim 3, wherein: the permanent magnets of each permanent magnet assembly (320) are distributed in different manners.

6. The roadheader cutter head drive mechanism of claim 1, characterized in that: the main shaft (7) is connected with the driving shaft (310) through a coupling (5).

7. The roadheader cutter head drive mechanism of claim 1, characterized in that: the two ends of the shell (100) are respectively provided with a front end cover (110) and a rear end cover (120), one end of the driving shaft (310) is rotatably arranged on the rear end cover (120), and the other end of the driving shaft (310) is rotatably arranged on the front end cover (110).

8. The roadheader cutter head drive mechanism of claim 1, characterized in that: still include cantilever beam arm (2), cantilever beam arm (2) are installed on shell (100), main shaft (7) coaxial rotation sets up on cantilever beam arm (2).