CN210771388U

CN210771388U - Multi-point lubricating pump

Info

Publication number: CN210771388U
Application number: CN201921817122.4U
Authority: CN
Inventors: 薛增奎
Original assignee: Nanjing Demi Machinery Co ltd
Current assignee: Nanjing Demi Machinery Co ltd
Priority date: 2019-10-26
Filing date: 2019-10-26
Publication date: 2020-06-16
Anticipated expiration: 2029-10-26

Abstract

The utility model discloses a multipoint lubricating pump, which comprises a motor, an eccentric wheel, an oil drum, a plurality of pump plunger units and a rolling bearing, wherein the inner ring of the rolling bearing is sleeved on the eccentric wheel and is connected with the eccentric wheel in a tight fit way, and also can be fixedly connected by welding or other ways; the tail ends of the piston rods of all the pump plunger units are naturally contacted with the outer peripheral surface of the outer ring of the rolling bearing and can also be fixedly connected. Through increasing antifriction bearing, effectively enlarge the eccentric motion of eccentric wheel, utilize antifriction bearing's good low friction performance simultaneously, the rotatory resistance of greatly reduced eccentric wheel to can effectively reduce the power of motor to and drive more pump plunger units and increase out the oil point, both energy-efficient, reduce cost.

Description

Multi-point lubricating pump

Technical Field

The utility model belongs to the technical field of the lubricating pump, concretely relates to multiple spot lubricating pump.

Background

In the prior art, a motor is usually adopted for a multipoint lubrication pump to drive an eccentric wheel to rotate, and a plurality of pump plunger units are directly driven to circularly act through the rotation of the eccentric wheel so as to realize the pressurization and output of lubricating oil or lubricating grease. The tail end of a piston rod of the pump plunger unit is directly contacted with the peripheral surface of the eccentric wheel, the design size of the eccentric wheel is larger, the direct friction between the eccentric wheel and the tail end of the piston rod is larger, the driving force is increased in multiples, and the phenomenon of rotation blockage caused by insufficient motor power is avoided, so that the motor power needs to be increased, and the cost is increased.

Disclosure of Invention

An object of the utility model is to provide a multiple spot lubricant pump, the eccentric wheel design size of solving among the prior art multiple spot lubricant pump is big, the not enough technical problem who takes place the stalling phenomenon of motor power.

In order to realize the above purpose, the utility model discloses the concrete technical scheme who takes is:

a multi-point lubricating pump comprises a pump body, a motor, an eccentric wheel, an oil drum, a plurality of pump plunger units and a rolling bearing, wherein an inner ring of the rolling bearing is sleeved on the eccentric wheel and is in tight fit connection with the eccentric wheel; the tail ends of the piston rods of all the pump plunger units are in contact with the outer peripheral surface of the outer ring of the rolling bearing.

The rolling bearing is sleeved on the eccentric wheel, and after the motor drives the eccentric wheel to rotate, the inner ring of the rolling bearing is driven to rotate together, so that the whole rolling bearing performs eccentric motion, the outer ring of the rolling bearing pushes the piston rod of each pump plunger unit to perform reciprocating motion, and therefore all the pump plunger units are driven to act to push out lubricating oil or lubricating grease in the pump plunger units.

Through increasing antifriction bearing, effectively enlarge the eccentric motion of eccentric wheel, utilize antifriction bearing's good low friction performance simultaneously, the rotatory resistance of greatly reduced eccentric wheel to can effectively reduce the power of motor to and drive more pump plunger units and increase out the oil point, both energy-efficient, reduce cost.

The inner ring of the rolling bearing is connected with the eccentric wheel in an interference fit manner; or the inner ring of the rolling bearing is connected with the eccentric wheel through welding or key connection. The inner ring of the rolling bearing is prevented from being separated from the eccentric wheel in the rotating process to influence the normal use of the multipoint lubrication pump, or the inner ring and the eccentric wheel are separated from each other to generate relative rotation to increase friction and improve energy consumption.

The tail end of a piston rod of the pump plunger unit naturally contacts with the outer peripheral surface of an outer ring of the rolling bearing; or the tail end of the piston rod of the pump plunger unit is fixedly connected with the outer peripheral surface of the outer ring of the rolling bearing.

Because the inner ring and the outer ring of the rolling bearing rotate relatively in the rotation process of the eccentric wheel, and the outer ring is tightly abutted against the tail end of the piston rod of the pump plunger unit, the relative rotation and the frictional resistance are basically avoided, and the two parts do not need to be fixed. Of course, the end of the piston rod of the pump plunger unit may be fixedly connected with the outer circumferential surface of the outer ring of the rolling bearing to ensure that no relative movement occurs between the two.

Compared with the prior art, the beneficial effects of the utility model are that:

Drawings

Fig. 1 is a perspective view of the multi-point lubrication pump of the present invention.

Fig. 2 is a structural view with the oil drum shell partially removed.

Fig. 3 is a partial enlarged view of portion a of fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, a multi-point lubrication pump comprises a pump body 1, a motor 2, an eccentric wheel 5, an oil drum 3, a plurality of pump plunger units 4 and a rolling bearing 6, wherein an inner ring of the rolling bearing 6 is sleeved on the eccentric wheel 5 and is fixedly connected with the eccentric wheel; the tail ends of the piston rods of all the pump plunger units 4 are connected with the outer peripheral surface of the outer ring 6 of the rolling bearing. The upper end of the rotating shaft of the eccentric wheel 5 is connected with the pump body 1 through a shaft bracket 7.

The rolling bearing is sleeved on the eccentric wheel, and after the motor drives the eccentric wheel to rotate, the inner ring of the rolling bearing is driven to rotate together, so that the whole rolling bearing performs eccentric motion, the outer ring of the rolling bearing pushes the piston rod of each pump plunger unit to perform reciprocating motion, all the pump plunger units are driven to act to push out the lubricating oil or lubricating grease inside, and the purpose of outputting the lubricating oil or the lubricating grease is achieved.

In the present exemplary embodiment, the inner ring of the rolling bearing 6 is connected to the eccentric wheel 5 by interference fit. The inner ring of the rolling bearing is prevented from being separated from the eccentric wheel in the rotating process to influence the normal use of the multipoint lubrication pump, or the inner ring and the eccentric wheel are separated from each other to generate relative rotation to increase friction and improve energy consumption.

In other embodiments, the inner ring of the rolling bearing and the eccentric wheel may also be fixedly connected by welding, key connection or other means.

Or in other embodiments, the inner ring of the rolling bearing is not tightly matched with the eccentric wheel, and the rolling bearing and the eccentric wheel can slightly rotate relatively, so that the friction and the energy consumption are increased.

In the present embodiment, the end of the piston rod of the pump plunger unit 4 naturally contacts with the outer peripheral surface of the outer ring 6 of the rolling bearing, but is not fixedly connected thereto.

In other embodiments, the end of the piston rod of the pump plunger unit may be fixedly connected to the outer circumferential surface of the outer ring of the rolling bearing.

It should be understood that the specific embodiments described herein are for the purpose of illustration only and are not intended to limit the invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-point lubricating pump comprises a pump body, a motor, an eccentric wheel, an oil drum and a plurality of pump plunger units, and is characterized by further comprising a rolling bearing, wherein an inner ring of the rolling bearing is sleeved on the eccentric wheel and is in tight fit connection with the eccentric wheel; the tail ends of the piston rods of all the pump plunger units are in contact with the outer peripheral surface of the outer ring of the rolling bearing.

2. The multipoint lubrication pump of claim 1, wherein the inner ring of the rolling bearing is connected with the eccentric wheel by interference fit;

or the inner ring of the rolling bearing is connected with the eccentric wheel through welding or key connection.

3. The multipoint lubrication pump according to claim 1 or 2, wherein a piston rod end of said pump plunger unit is in natural contact with an outer peripheral surface of an outer ring of a rolling bearing;

or the tail end of the piston rod of the pump plunger unit is fixedly connected with the outer peripheral surface of the outer ring of the rolling bearing.