CN-224222241-U - Mining tunneling engineering machinery round pin axle lubrication oil duct pull throughs

CN224222241UCN 224222241 UCN224222241 UCN 224222241UCN-224222241-U

Abstract

The utility model discloses a dredging device for a pin shaft lubricating oil duct of a mining tunneling engineering machine, which comprises a mounting seat, wherein an oil storage cylinder is fixed in the center of the top surface of the mounting seat, a large oil cylinder is arranged in the oil storage cylinder, the bottom end of the large oil cylinder is fixed on the mounting seat, and a disc is welded and fixed at the inner top of the large oil cylinder. The device is arranged through the small oil cylinder and the large oil cylinder, when the piston column is pushed and pulled up and down through the spanner, hydraulic oil in the oil storage cylinder can be continuously pressed into the large oil cylinder, in the process, force on the hand is increased by multiple times to the piston column through the spanner due to leverage, the force from the small oil cylinder to the large oil cylinder is increased by multiple times (as the principle of a hydraulic jack), hydraulic oil entering the large oil cylinder at the moment sequentially enters an oil way in the pin shaft through the L-shaped connecting pipe, the hydraulic pipe and the oil injection nozzle, and when the spanner continuously swings up and down, the strong hydraulic oil can easily jack up a blockage at the oil outlet end of the oil way in the pin shaft, so that the aim of dredging the lubricating oil passage of the pin shaft is effectively achieved.

Inventors

Mao Yongheng
ZHANG WEI
WANG ZHAN
MA XIAOFEI
WANG HE
SHAO LU

Assignees

中煤第三建设(集团)有限责任公司二十九工程处

Dates

Publication Date: 20260512
Application Date: 20250526

Claims (4)

1. The utility model provides a mining tunneling engineering machinery round pin axle lubrication oil duct pull throughs, includes mount pad (1), its characterized in that, mount pad (1) top surface center department is fixed with oil storage section of thick bamboo (2), be equipped with big hydro-cylinder (7) in oil storage section of thick bamboo (2), big hydro-cylinder (7) bottom fixed on mount pad (1), top welded fastening has disc (8) in big hydro-cylinder (7), disc (8) top surface is fixed with L type connecting pipe (9), L type connecting pipe (9) and big hydro-cylinder (7) intercommunication, be connected with hydraulic pipe (10) on the port of L type connecting pipe (9), be connected with oiling mouth (11) on another port of hydraulic pipe (10), mount pad (1) top surface one side is fixed with little hydro-cylinder (3), little hydro-cylinder (3) are slided and are equipped with piston post (16), spanner (4) are articulated on piston post (16) top, spanner (4) one end articulates there is connecting rod (17), connecting rod (17) bottom and mount pad (1) are articulated, be connected with hydraulic cylinder (3) port, be connected with hydraulic cylinder (3) on the port, be connected with oil filler neck (3) on the other port of hydraulic cylinder (1) is fixed with oil cylinder (3) and is connected with a big hydro-cylinder (3) and is connected with a big oil storage section of thick bamboo (13), and third oil circuit (14) that communicates big hydro-cylinder (7) and oil storage section of thick bamboo (2) have still been seted up to inside mount pad (1), mount pad (1) one side spiro union has shutoff bolt (15), shutoff bolt (15) can shutoff third oil circuit (14), first oil circuit (12) and second oil circuit (13) one end are equipped with the check valve respectively.
2. The mining tunneling engineering machinery pin shaft lubricating oil duct dredging device is characterized in that the hydraulic pipe (10) is connected with the L-shaped connecting pipe (9) in a plugging mode, a fast-plugging plug-in port is formed in the port of the L-shaped connecting pipe (9), the hydraulic pipe (10) is connected with the oil injection nozzle (11) in a threaded mode, threads which are in threaded connection with the hydraulic pipe (10) are formed in one end of the oil injection nozzle (11), and threads which are in threaded connection with the oil path port of the pin shaft are formed in the other end of the oil injection nozzle (11).
3. The dredging device for the lubricating oil duct of the pin shaft of the mining tunneling engineering machine is characterized in that a plugging disc (6) is sleeved on the top of the outer side of the large oil cylinder (7) in a threaded manner, and the bottom surface of the plugging disc (6) is in sealing fit with the top end of the oil storage cylinder (2).
4. The dredging device for the pin shaft lubricating oil duct of the mining tunneling engineering machine is characterized in that an oil filling bucket (5) is fixed at the top of the side wall of the oil storage barrel (2), and the oil filling bucket (5) is communicated with the oil storage barrel (2).

Description

Mining tunneling engineering machinery round pin axle lubrication oil duct pull throughs Technical Field The utility model relates to the field of engineering machinery, in particular to a dredging device for a pin shaft lubricating oil duct of a mining tunneling engineering machine. Background The pin is usually only subjected to radial load, and when the pin is subjected to axial load synchronously and static load is greater than 30t, the pin is usually called a heavy-duty pin. The heavy-duty pin shaft is generally required to be matched with a steel back bearing for use, the pin shaft rotates in the steel back bearing during operation, the pin shaft is required to be lubricated well, an axial oil duct and a radial oil duct are arranged on the commonly used pin shaft, the aperture of the oil duct is generally phi 6 mm-phi 8mm, external lubricating grease normally reaches the contact surface of the pin shaft and the steel back bearing through the axial oil duct and the radial oil duct, the lubricating effect is achieved, the oil injection end of the oil duct is in threaded connection with an oil injection nozzle, the pin shaft of the oil duct has the following problems that due to serious abrasion and more scraps, the hidden danger that an oil duct oil outlet is blocked exists, once the oil duct is blocked, dry grinding and abnormal sound even seizure phenomenon of the pin shaft and the bearing can occur, when the oil duct is blocked, the lubricating grease cannot be pressed into the oil duct through the oil injection nozzle, so that the lubricating grease cannot reach the contact surface of the pin shaft and the steel back bearing, when the oil duct is dredged, time and labor are wasted when the scraps at a bit of tools such as a screwdriver and a needle are dredged, and the dredging effect is poor. The utility model designs a dredging device for the pin shaft lubricating oil duct of the mining tunneling engineering machinery, which solves the problems. Disclosure of utility model In order to solve the problems, the utility model provides a dredging device for a pin shaft lubricating oil duct of a mining tunneling engineering machine. The utility model is realized by the following technical scheme: The utility model provides a mining tunneling engineering machinery round pin axle lubrication oil duct pull throughs, includes the mount pad, mount pad top surface central authorities department is fixed with the oil storage section of thick bamboo, be equipped with big hydro-cylinder in the oil storage section of thick bamboo, big hydro-cylinder bottom mounting is on the mount pad, top welded fastening has the disc in the big hydro-cylinder, the disc top surface is fixed with L type connecting pipe, L type connecting pipe and big hydro-cylinder intercommunication, be connected with the hydraulic pipe on the L type connecting pipe port, be connected with the oiling mouth on another port of hydraulic pipe, mount pad top surface one side is fixed with little hydro-cylinder, the slip is equipped with the piston post in the little hydro-cylinder, the piston post top end articulates there is the spanner, spanner one end articulates there is the connecting rod, the connecting rod bottom is articulated with the mount pad, the inside second oil circuit that communicates little hydro-cylinder and oil storage section of thick bamboo of seting up of thick bamboo of connecting, and the inside second oil circuit that communicates of seting up of mount pad, and the inside still seting up of mount pad big oil cylinder and oil storage section of thick bamboo of connecting, mount pad one side spiro union has the bolt, the shutoff one side can be equipped with the shutoff post, first shutoff and second shutoff one end are equipped with one-way shutoff respectively. Preferably, the hydraulic pipe is connected with the L-shaped connecting pipe in an inserting way, a fast inserting port is arranged on the port of the L-shaped connecting pipe, the hydraulic pipe is connected with the oil injection nozzle in a threaded way, one end of the oil injection nozzle is provided with threads connected with the hydraulic pipe in a threaded way, and the other end of the oil injection nozzle is provided with threads connected with the oil path port of the pin shaft in a threaded way. Preferably, the top of the outer side of the large oil cylinder is sleeved with a plugging disc in a threaded manner, and the bottom surface of the plugging disc is in sealing fit with the top end of the oil storage cylinder. Preferably, the top of the side wall of the oil storage cylinder is fixedly provided with an oil filling hopper, and the oil filling hopper is communicated with the oil storage cylinder. Compared with the prior art, the hydraulic oil cylinder device has the beneficial effects that through the arrangement of the small oil cylinder and the large oil cylinder, when the piston column is pushed and pulled up and down by the wrench, hydraulic oil i