1. Overview

Electric lubrication pumps are suitable for single andSmart lubricationIn the dual-line dry thin oil centralized lubrication system, it is used as a delivery device for supplying grease. It can also be equipped with a mobile trolley, hose, oil gun and cable to form a mobile electric lubrication pump device, which is suitable for mobile grease supply lubrication with low lubrication frequency, few lubrication points, and large oil supply volume, which makes it difficult to use single-machine equipment with centralized lubrication. This series of lubrication pumps are electric high-pressure plunger type. The working pressure can be adjusted arbitrarily within the nominal pressure range and has double overload protection. The oil storage barrel of the thin oil station manufacturer has an automatic oil level alarm device. If the lubrication pump is equipped with an electrical control box, it can realize fully automatic control of the two-line centralized lubrication system and supervise the system.

2. Working principle

The reduction motor is fixed on the connecting flange with the pump device. It drives the sliding fork to perform linear reciprocating motion by driving the eccentric shaft, and drives the spiral oil pressure plate to rotate clockwise (there is no such mechanism when using lubricating oil). The lubrication softened by stirring Grease is evenly pressed around the suction port of the pump unit. The pump has two sets of pistons. Each set of pistons is composed of 1 working plug and 2 control pistons. When the working piston in one set of pistons completes the oil absorption process, the working piston in the other set of pistons presses the grease toward the oil outlet. . As shown in the figure below, when the sliding fork moves to the left, the upper set of pistons completes oil suction, and the lower set of pistons completes oil pressing and starts a new job. At this time, the lower group of pistons 1 and 2 moves to the left. Piston 2 reaches the position to close the outlet under the action of spring force, while piston 1 continues to move to the left. At this time, a vacuum is formed between pistons 2 and 1, and the degree of vacuum increases with the left direction of piston 1. As the movement continues to increase, the sliding fork moves and the piston 1 opens the oil suction port, and the grease is sucked in from the oil suction port. If the spring force is insufficient and the piston 2 is not pushed, the push rod 3 will forcefully push the piston 2 forward under the push of the sliding fork. Press, and at the same time, the upper group of pistons 1, 2, and 3 move to the left. Piston 1 closes the oil suction port first, and the sucked grease moves to the left under the push of piston 1. When piston 2 opens the oil outlet, piston 2 The movement of push rod 3 and push rod 3 stops, piston 1 continues to move to the left, and the grease is pressed out from the oil outlet. Pistons 1 and 2 contact the sliding fork and have completed half of the work. Repeatedly, the second set of pistons The lubricating grease is alternately pressured out from the oil outlet. The pressed grease is filtered by the filter on the connecting flange of the pump device and then supplied to the system.

3. Instructions for use

1. This series of electric lubrication pumps should be installed in a place with good environment and less dust, which is convenient for adjustment, inspection, maintenance, disassembly and cleaning, and convenient grease refilling.

2. This series of electric lubrication pumps should be arranged in the middle of the system as much as possible, shorten the length of the system piping, and maintain the pressure drop so that the pump can generate pressure that can overcome the back pressure of the lubrication point.

3. The set pressure of the pump pressure regulating valve can be adjusted arbitrarily within the range of 0~40MPa. It is not allowed to exceed the nominal pressure of the pump (40MPa) during use.

4. The filter screen of the filter at the pump oil outlet should be cleaned regularly to prevent clogging.

5. If the pressure reaches about 50MPa due to a series of failures, the fuse will rupture. Find out the cause and clean it before installing a new fuse.

6. To replenish lubricant into the oil reservoir, you need to use the DJB-H1.6 electric grease pump to add it from the grease port of the reservoir.

7. The membrane-type capacity indicator in the oil reservoir is only suitable for grease. When the medium used is lubricating oil, it needs to be replaced with a float-type capacity indicator.

8. The electric reducer needs to add an appropriate amount of 3# molybdenum disulfide grease from the exhaust plug hole for the first two months of use, and then every four months.

9. This series of electric lubrication pumps are for indoor installation. When used outdoors or in harsh environments, protective measures need to be taken.

4. Model description