Abstract

A two-way control grease suction device and a waste grease recycling device. The two-way control grease suction device comprises a housing (1), a piston (2) and a plunger (3). The housing is provided with a piston cavity (12) and a plunger cavity (13) that are communicated with each other, and the diameter of the piston cavity is larger than that of the plunger cavity. The piston is connected with the plunger, and the piston and the plunger are in sliding seal fit with the piston cavity and the plunger cavity, respectively. Grease openings (121) are formed at two ends of the piston cavity. A grease suction opening (131) for feeding grease in one way is formed in a side wall of the plunger cavity (13) and at a position away from a right end surface of the plunger cavity (13) by a predetermined distance. A grease discharge opening (132) is formed in the right end surface of the plunger cavity (13), and is provided with a one-way valve for discharging grease in one way. The piston moves leftwards to drive the plunger to open the grease suction opening. The waste grease recycling device comprises a hydraulic pump (200), a reversing valve (210), at least one two-way control grease suction device, and at least one waste grease collection box (300). The piston moves back and forth in the piston cavity and drives the plunger to move back and forth accordingly, so the lubricating grease is sucked into the plunger cavity via the grease suction opening and is discharged from the plunger cavity via the grease discharge opening.

IPC Classes  ?

• F16N 31/00 - Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus

Abstract

A liquid distributing valve comprises a shell (1) and an oil supply channel (2). The shell (1) comprises an oil storage valve and a two-position three-way valve; the oil storage valve is separated into an oil storage chamber (31) and an oil pressing chamber (32) by a piston (4); the oil storage chamber (31) is communicated with an oil draining port (61) and is provided with a spring (5) butting against the piston (4); the two-position three-way valve comprises a valve chamber (7), a valve core (8) and a valve base (9); the valve chamber (7) is communicated with the oil pressing chamber (32) through an oil exchanging channel (10); an oil inlet (62) of the valve chamber (7) is communicated with the oil supply channel (2); a core hole (91) of the valve base (9) is communicated with the oil storage chamber (31) through a bypass oil channel (11). When the valve core (8) is located at a first valve position, the oil inlet (62) is plugged and the oil pressing chamber (32) is communicated with the oil storage chamber (31); when the valve core (8) is located at a second valve position, the core hole (91) is plugged and lubricating oil enters the oil pressing chamber (32) from the oil inlet (62), the piston is pushed to compress the spring, and the lubricating oil in the oil storage chamber (31) is drained from the oil draining port (61) and is conveyed to an appointed lubricating point. The liquid distributing valve is applicable to various lubricating demands, has a compact structure and high reliability and is convenient in maintenance.

IPC Classes  ?

• F16N 25/02 - Distributing equipment with reciprocating distributing slide valve

Abstract

A lubrication apparatus with a pressurized oil tank having an air chamber comprises a lubrication pump body (1), a drive assembly (2), a lubrication pump (3), a cylindrical oil tank (7), a piston (6), and a sealing ring (5). The drive assembly (2) and the lubrication pump (3) driven thereby are installed on the lubrication pump body (1); the cylindrical oil tank (7) and the lubrication pump body (1) are fixedly connected; the piston (6) separates the cylindrical oil tank (7) into an upper chamber A and a lower chamber B hermetically sealed one from the other by means of the sealing ring (5); the oil inlet C of the lubrication pump (3) communicates with lower chamber B, said chamber serving as a storage cavity for lubricant grease; upper chamber A is a sealed air chamber connected to a valve outlet port (13) protruding from the top thereof. Also disclosed is a lubrication apparatus with a pressurized oil tank having an air spring. Use of the disclosed structure ensures an ample supply of lubricant through the oil inlet of the lubrication pump. High-viscosity greases can be pumped even in low-temperature and low atmospheric-pressure conditions.

IPC Classes  ?

• F16N 13/16 - Actuation of lubricating-pumps with fluid drive
• F16N 7/38 - Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pumpCentral lubrication systems
• F16N 19/00 - Lubricant containers for use in lubricators or lubrication systems
• F16N 23/00 - Special adaptations of check valves
• F16N 29/00 - Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditionsUse of devices responsive to conditions in lubricating arrangements or systems

Goods & Services

Machines and machine tools; Motors and engines (except for land vehicles); Machine coupling and transmission components (except for land vehicles); Agricultural implements other than hand-operated; Incubators for eggs; Pumps [parts of machines, engines or motors]; Lubricating pumps; Pumps [machines]; Valves [parts of machines]; Pressure valves [parts of machines]; Hydraulic controls for machines, motors and engines; Fluid power component kit for machine control comprising pumps and valves; Filters [parts of machines or engines]; Lubricators [parts of machines]; Degreasers [machines]; Grease boxes [parts of machines]; Mechanical seals being parts of machines; Lubrication machines; Self–oiling bearings; Ball–bearings; Bearings [parts of machines]; Bearings for transmission shafts; Roller bearings; Anti–friction pads for machines. Building construction; Repair; Installation services; Machinery installation, maintenance and repair; Motor vehicle maintenance and repair; Vehicle greasing; Elevator installation and repair.