CN-224214168-U - Cutting head protective equipment for coal mining and tunneling

CN224214168UCN 224214168 UCN224214168 UCN 224214168UCN-224214168-U

Abstract

The utility model discloses cutting head protection equipment for coal mining and tunneling, which comprises a tunneling mechanical arm, wherein the tunneling mechanical arm is provided with a coal mining cutting head; according to the utility model, the arranged protective baffle and movable baffle can be blocked at one side of the coal mining cutting head to block splashed broken stone, so that the broken stone is prevented from splashing to hurt a driver, and when the angle of the tunneling mechanical arm and the coal mining cutting head is adjusted downwards, the two movable baffles can be recycled into the protective baffle by utilizing the adjusting motor, thereby preventing the movable baffle from contacting with the mine ground to limit the movable angle of the tunneling mechanical arm when the tunneling mechanical arm is inclined, and simultaneously the protective baffle can play a role in blocking and protecting.

Inventors

YUAN JUNPING
Sang Junliang
LIU RUIFENG

Assignees

袁俊苹

Dates

Publication Date: 20260508
Application Date: 20250617

Claims (4)

1. The cutting head protection device for coal mining and tunneling comprises a tunneling mechanical arm (100), wherein a coal mining cutting head (101) is arranged on the tunneling mechanical arm (100), the device is characterized in that a limiting sleeve ring (200) is rotatably sleeved on the tunneling mechanical arm (100), a protection structure is mounted on the limiting sleeve ring (200), two adjusting gears (300) are movably mounted on the protection structure, an adjusting structure is mounted on the two adjusting gears (300), a connecting sleeve ring (400) is fixedly mounted on one side of the limiting sleeve ring (200), the connecting sleeve ring (400) is rotatably sleeved on the tunneling mechanical arm (100), and a turnover structure is mounted on the connecting sleeve ring (400); The protection structure comprises a protection baffle (201), wherein the protection baffle (201) is fixedly arranged on a limit collar (200), a recovery groove (202) is formed in the protection baffle (201), two movable baffles (203) are movably arranged in the recovery groove (202), the two movable baffles (203) are in contact with each other, and the protection baffle (201) and the two movable baffles (203) are both positioned on one side of a coal mining cutting head (101); The adjusting structure comprises two adjusting motors (301), wherein the two adjusting motors (301) are fixedly arranged on one side of a protective baffle (201), the output ends of the two adjusting motors (301) are rotatably arranged in the protective baffle (201), the output ends of the two adjusting motors (301) are respectively arranged on one side of two adjusting gears (300), arc racks (302) are fixedly arranged on two movable baffles (203), and the two arc racks (302) are respectively meshed with the two adjusting gears (300); The overturning structure comprises an auxiliary motor (401), wherein the auxiliary motor (401) is fixedly arranged on a connecting sleeve ring (400), a connecting shaft (402) is fixedly arranged at the output end of the auxiliary motor (401), the connecting shaft (402) is rotatably arranged in the connecting sleeve ring (400), a worm (403) is fixedly sleeved on the connecting shaft (402), a fixed worm wheel (404) is fixedly sleeved on a tunneling mechanical arm (100), the fixed worm wheel (404) is rotatably arranged in the connecting sleeve ring (400), and the fixed worm wheel (404) is meshed with the worm (403).
2. The cutting head protection device for coal mining and tunneling according to claim 1, wherein an arc-shaped guide hole (303) is formed in one side of the protection baffle plate (201), two guide shafts (304) are movably mounted in the arc-shaped guide hole (303), and the two guide shafts (304) are fixedly mounted on one sides of the two movable baffle plates (203) respectively.
3. The cutting head protection device for coal mining and tunneling according to claim 1, wherein an annular groove (405) is formed in the connecting lantern ring (400), a guide ring (406) is rotatably installed in the annular groove (405), and the guide ring (406) is fixedly installed on one side of the fixed worm wheel (404).
4. The cutting head protection device for coal mining and tunneling according to claim 1, wherein the limiting collar (200) is internally rotatably provided with a limiting ring (407), and the limiting ring (407) is fixedly sleeved on the tunneling mechanical arm (100).

Description

Cutting head protective equipment for coal mining and tunneling Technical Field The utility model relates to the technical field of mining heading machines, in particular to cutting head protection equipment for coal mining and heading. Background The cutting head is a rotating part which is directly used for cutting rock on a tunneling machine, and the rock is cut by a sharp cutting edge or blade of the cutting head through high-speed rotation, so that tunneling operation is realized. Chinese patent publication No. CN219864992U discloses a cutting head protective equipment for coal mining and tunneling, including the entry driving machine, cutting head and protection subassembly, protection subassembly includes driving ring, dwang and protection casing, the entry driving machine is used for driving cutting head rotation exploitation colliery, protection subassembly's setting avoids cutting head to mine the broken stone piece that produces and coal piece to splash and hurt the driver, specifically, before the entry driving machine starts the cutting head, thereby drive ring action slides on the entry driving machine and drives the dwang and rotate, the dwang rotates and opens the protection casing, restart cutting head exploitation colliery this moment, the protection casing will fly to the broken stone of driver and coal piece under the in-process of exploitation, thereby avoided the driver to be bumped by broken stone and coal piece, when solving traditional cutting head and mining operation, broken stone or colliery splash cause the problem that the driver is injured. Among the above-mentioned disclosed prior art, can splash down to driver's rubble and coal cinder when cutting head operation through the guard plate that sets up, play the guard effect, but the position of this guard plate is fixed setting, when adjusting the arm angle and making the cutting head bore mine ground or top, can drive guard plate and contact with ground first, lead to the activity angle of arm to be limited, consequently need a cutting head protective equipment for coal mining tunnelling to satisfy people's demand. Disclosure of utility model The utility model aims to provide cutting head protection equipment for coal mining and tunneling so as to solve the problems in the background technology. The cutting head protection device for coal mining and tunneling comprises a tunneling mechanical arm, wherein the tunneling mechanical arm is provided with a coal mining cutting head, a limiting sleeve ring is rotatably sleeved on the tunneling mechanical arm, a protection structure is mounted on the limiting sleeve ring, two adjusting gears are movably mounted on the protection structure, an adjusting structure is mounted on the two adjusting gears, a connecting sleeve ring is fixedly mounted on one side of the limiting sleeve ring, the connecting sleeve ring is rotatably sleeved on the tunneling mechanical arm, and a turnover structure is mounted on the connecting sleeve ring; The protection structure comprises a protection baffle plate, wherein the protection baffle plate is fixedly arranged on the limiting collar, a recovery groove is formed in the protection baffle plate, two movable baffle plates are movably arranged in the recovery groove and are in contact with each other, and the protection baffle plate and the two movable baffle plates are both positioned on one side of the coal mining cutting head; The adjusting structure comprises two adjusting motors, wherein the two adjusting motors are fixedly arranged on one side of the protective baffle, the output ends of the two adjusting motors are rotatably arranged in the protective baffle, the output ends of the two adjusting motors are respectively arranged on one side of the two adjusting gears, arc racks are fixedly arranged on the two movable baffles, and the two arc racks are respectively meshed with the two adjusting gears; The overturning structure comprises an auxiliary motor, the auxiliary motor is fixedly arranged on the connecting lantern ring, a connecting shaft is fixedly arranged at the output end of the auxiliary motor, the connecting shaft is rotatably arranged in the connecting lantern ring, a worm is fixedly sleeved on the connecting shaft, a fixed worm wheel is fixedly sleeved on the tunneling mechanical arm, the fixed worm wheel is rotatably arranged in the connecting lantern ring, and the fixed worm wheel is meshed with the worm. Preferably, an arc-shaped guide hole is formed in one side of the protective baffle, two guide shafts are movably mounted in the arc-shaped guide hole, and the two guide shafts are respectively and fixedly mounted on one sides of the two movable baffles. Preferably, an annular groove is formed in the connecting lantern ring, a guide ring is rotatably mounted in the annular groove, and the guide ring is fixedly mounted on one side of the fixed worm wheel. Preferably, a limiting ring is rotatably arranged in the limiting collar, and t