CN-224229705-U - Centralized grease injection device of coal mining machine

CN224229705UCN 224229705 UCN224229705 UCN 224229705UCN-224229705-U

Abstract

The utility model relates to a centralized grease injection device of a coal mining machine, and belongs to the technical field of coal mining machines. The centralized grease injection device for the coal mining machine comprises a centralized grease injection block arranged on an outer cover plate of the coal mining machine, wherein a plurality of grease injection holes are formed in the centralized grease injection block, the grease injection holes penetrate through the centralized grease injection block, a rubber pipe assembly is communicated with each grease injection hole, the other end of each rubber pipe assembly is correspondingly communicated with a lubricating point, an oil injection hole is formed in the outer cover plate of the coal mining machine, and each grease injection hole in the centralized grease injection block is located in the opening range of the oil injection hole. According to the utility model, every lubrication point of the coal mining machine which is required to be maintained in daily life is concentrated on one concentrated lubricating block, so that the lubrication efficiency is greatly improved, lubrication parts are not easy to miss, the labor intensity of underground workers is greatly reduced, and meanwhile, every lubrication point of the coal mining machine is directly connected with an oil filling hole through a rubber pipe assembly, so that pollutants such as coal ash, water and the like are effectively prevented from entering a bearing or a grease filling channel.

Inventors

QIAN ZHUANGZHUANG
LIU KUNMIN
ZHU XINPING
LU YUNPENG
KAN JINBIAO
WANG XIAOJUN
WANG CHAO
DENG XIN
ZHANG LINGFENG

Assignees

天地上海采掘装备科技有限公司
中煤科工集团上海有限公司

Dates

Publication Date: 20260512
Application Date: 20250514

Claims (8)

1. The centralized grease injection device for the coal mining machine is characterized by comprising a centralized grease injection block arranged on an outer cover plate of the coal mining machine, wherein a plurality of oil injection holes are formed in the centralized grease injection block, and the oil injection holes penetrate through the centralized grease injection block; An oil filling port is formed in the outer cover plate of the coal mining machine, and each oil filling hole on the centralized lubricating block is located in the opening range of the oil filling port; The oil filling device comprises an oil filling hole, an oil filling cup and a sealing device, wherein the oil filling hole is arranged in the oil filling hole; The oiling oil cup is connected into the small threaded hole through threads.
2. The centralized fat injection device of the coal mining machine according to claim 1, wherein joint seats are respectively arranged at two ends of the rubber tube assembly, and the joint seats are correspondingly connected with the oil injection hole and the lubricating point through threads.
3. The centralized fat liquoring device of claim 2, wherein the rubber tube assembly is connected to the joint base by a U-shaped clip.
4. The centralized fat injection device of claim 2, wherein the oil injection cup does not protrude from the oil injection hole.
5. The centralized fat injection device of the coal mining machine according to claim 2, wherein one end of the oil injection hole, which is far away from the oil injection port, is provided with a large threaded hole, and the large threaded hole, the small threaded hole and the counter bore are sequentially communicated and coaxially arranged; the joint seat is connected in the large threaded hole through threads.
6. The centralized fat injection device of the coal mining machine according to claim 2, wherein a sealing combined gasket is arranged between the joint seat and the centralized lubricating block; And/or a sealing combined gasket is arranged between the joint seat and the lubricating point.
7. The centralized grease injection device of the coal mining machine according to claim 1, wherein the centralized grease block is fixed on the outer cover plate of the coal mining machine through a fastening screw and a fastening gasket.
8. The centralized fat injection device of the coal mining machine according to claim 1, wherein the lubrication points comprise a rocker arm hinge pin mining side lubrication point, a rocker arm hinge pin coal wall side lubrication point, a traveling wheel bearing lubrication point, a driving wheel mining side bearing lubrication point and a driving wheel coal wall side bearing lubrication point.

Description

Centralized grease injection device of coal mining machine Technical Field The utility model relates to the technical field of coal mining machines, in particular to a centralized grease injection device of a coal mining machine. Background The coal mining machine is one of main fully-mechanized coal mining equipment under the coal mine, and the safe and efficient operation of the coal mining machine has important significance for coal mine production. The driving wheel of the traveling box of the coal mining machine, the traveling wheel bearing and the rocker arm hinge pin shaft are exposed to the external environment of the underground severe working condition all the year round, lubricating grease needs to be filled periodically for lubrication, and the damage of the bearing and the rocker arm hinge pin shaft caused by lubrication failure is prevented, so that the fault of the coal mining machine is caused. The traditional grease injection mode is to independently inject grease to each scattered part to be lubricated, the underground space is narrow, the problems of high labor intensity, low efficiency, easy forgetting of lubrication points and the like exist, and the development direction of high-end coal machine equipment cannot be met. Disclosure of Invention The utility model aims to solve the problems and provides a centralized fat injection device of a coal mining machine. The purpose of the utility model is realized in the following way: The centralized grease injection device for the coal mining machine comprises a centralized grease injection block arranged on an outer cover plate of the coal mining machine, wherein a plurality of grease injection holes are formed in the centralized grease injection block and penetrate through the centralized grease injection block; An oil filling port is formed in the outer cover plate of the coal mining machine, and each oil filling hole in the centralized lubricating block is located in the opening range of the oil filling port. The two ends of the rubber tube assembly are respectively provided with a joint seat, and the joint seats are correspondingly connected with the oil filling hole and the lubricating point through threads. Wherein, the rubber tube subassembly is connected with the headstock through U-shaped card. The oil filling device further comprises an oil filling cup, wherein the oil filling cup is arranged in the oil filling hole, and the oil filling cup does not protrude out of the oil filling hole. The oil filling hole is provided with a small threaded hole from the bottom of the counter bore to the end far away from the oil filling hole; The oiling oil cup is connected into the small threaded hole through threads. The oil filling hole is communicated with the oil filling hole through a small threaded hole, and is communicated with the oil filling hole through a large threaded hole; the joint seat is connected in the large threaded hole through threads. Wherein a sealing combined gasket is arranged between the joint seat and the concentrated lubricating block; And/or a sealing combined gasket is arranged between the joint seat and the lubricating point. The centralized lubricating block is fixed on the outer cover plate of the coal mining machine through a fastening screw and a fastening gasket. The lubrication points comprise a rocker arm hinge pin mining side lubrication point, a rocker arm hinge pin coal wall side lubrication point, a travelling wheel bearing lubrication point, a driving wheel mining side bearing lubrication point and a driving wheel coal wall side bearing lubrication point. The lubricating device has the beneficial effects that each lubricating point of the coal mining machine which is required to be maintained is concentrated on one concentrated lubricating block, the lubricating efficiency is greatly improved, lubricating parts are not easy to miss, the labor intensity of underground workers is greatly reduced, and meanwhile, each lubricating point of the coal mining machine and the oil filling hole are directly connected through the rubber pipe assembly, so that pollutants such as coal ash, water and the like are effectively prevented from entering a bearing or a grease filling channel. Drawings FIG. 1 shows a schematic structural view of an embodiment of a centralized fat injection device of a coal mining machine. Reference numerals illustrate: 1-concentrated lubricating block, 2-oiling oil cup, 3-fastening screw, 4-fastening washer, 5-sealing combined washer, 6-joint seat, 7-U-shaped clamp, 8-rubber tube component and 9-lubricating point. Detailed Description Various embodiments of the present utility model will be described with reference to the accompanying drawings. Elements having similar structures or functions will be denoted by the same reference numerals throughout the specification and the drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and description an