CN214064534U

CN214064534U - Double-circuit lubricating system

Info

Publication number: CN214064534U
Application number: CN202022965821.2U
Authority: CN
Inventors: 何珊; 王燕丽; 杨淑芳
Original assignee: Beijing Huahai Machinery Co ltd
Current assignee: Beijing Huahai Machinery Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-27
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to a double-circuit lubricating system belongs to lubricating system technical field. The utility model comprises a cooler, a filter, a throttle valve or a flow switch and two lubricating motor pumps; the oil suction ports of the two lubricating motor pumps are connected with the gear box, the oil outlets are connected with the liquid inlet of the filter through a tee joint, the liquid outlet of the filter is connected with the liquid inlet pipeline of the cooler, the liquid outlet of the cooler is divided into two paths by the tee joint, a throttle valve or a flow switch is arranged on each path, and then the two paths are communicated to all lubricating points through connecting pipelines. The two-way lubricating system is formed by upgrading the original single-way lubricating system, so that the extreme conditions that the flow is excessive and the flow is insufficient when the variable-frequency plunger pump works in a variable frequency mode cannot be considered are effectively solved, the intelligent lubricating flow ratio is realized, the lubricating effect is optimized, and the integral service life of the plunger pump is effectively prolonged; the oil supply device realizes independent oil supply and two-position lubrication, saves space, improves efficiency and reduces use cost.

Description

Double-circuit lubricating system

Technical Field

The utility model relates to a lubricating system technical field, concretely relates to double-circuit lubricating system.

Background

At present, a lubricating system adopts a form that a plunger pump driving shaft drives a lubricating pump, when the variable frequency motor is adopted for driving, the quantity of lubricating oil is possibly insufficient due to reduction of the rotating speed, and when the lubricating pump which is selected to be larger runs at full frequency, the larger lubricating pump is larger, and unnecessary power loss can be caused.

At present, the flow of a crankshaft and a slide block of a lubricating system has no monitoring function of temperature and pressure, and has no mode of distribution according to needs, so that the lubricating system can be used sufficiently at two places, and the mode of increasing the pump discharge capacity is adopted, so that the power loss is wasted.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved technical problem of the utility model is: the problem of power loss caused by a self-contained lubricating pump when a variable frequency driving motor is adopted in the conventional lubricating system is solved; further solve current lubricating system as required distribution to and pressure and temperature monitoring problem.

(II) technical scheme

In order to solve the technical problem, the utility model provides a double-circuit lubricating system, which comprises a cooler 5, a filter 4, a throttle valve or a flow switch 2, a first lubricating motor pump 1-1 and a second lubricating motor pump 1-2; the oil suction ports of the two lubricating motor pumps are connected with the gear box, the oil outlets are connected with the liquid inlet of the filter 4 through a tee joint, the liquid outlet of the filter 4 is connected with the liquid inlet pipeline of the cooler 5, the liquid outlet of the cooler 5 is divided into two paths by the tee joint, a throttle valve or a flow switch 2 is arranged on each path, and then the paths are communicated to all lubricating points through connecting pipelines.

Preferably, the two lubricating motor pumps are used as a source of lubricating oil for the lubricating system.

Preferably, the throttle or flow switch 2 is used to adjust the flow rate.

Preferably, the filter 4 is used for filtering the lubricating oil.

Preferably, the cooler 5 is used for cooling the lubricating oil.

Preferably, the system further comprises a temperature sensor mounted on the gear oil tank of the plunger pump for monitoring the lubrication system temperature.

Preferably, the system further comprises a pressure gauge 3 for detecting the lubricating oil pressure of the crankshaft lubrication and the spherical hinge lubrication of the plunger pump at the pressure taking port.

Preferably, one of the lubricating motor pumps power from the plunger pump drive shaft to pump gear oil from the gearbox.

Preferably, the system further comprises a motor, and the other lubricating motor pump is driven by the motor and pumps gear oil out of the gearbox.

Preferably, the system provides lubrication to the emulsion pump crankcase and ball joint.

(III) advantageous effects

The utility model discloses upgrade into double-circuit lubricating system on former single-circuit lubricating system, effectively solved two kinds of extreme circumstances that can not compromise of the flow surplus and the flow insufficiency of frequency conversion plunger pump when frequency conversion work, realize intelligent lubricated flow ratio, optimize the lubrication effect, effectively prolonged the whole life of plunger pump; two parts of lubrication with independent oil supply are realized, the space is saved, the efficiency is improved, and the use cost is reduced; the flow rate required by two lubricating points can be effectively adjusted according to different flow rates; the temperature of fluid can be gathered, and the system is intelligently controlled according to the temperature feedback signal.

Drawings

FIG. 1 is a system configuration diagram of the present invention;

fig. 2 is a main working principle diagram of the present invention.

Detailed Description

In order to make the objects, contents, and advantages of the present invention clearer, the following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings and examples.

As shown in FIG. 1, the utility model provides a pair of double-circuit lubricating system is used for carrying out the circulating lubrication cooling to emulsion pump crankcase and ball pivot, plunger pump variable frequency drive motor, bent axle self-driven lubricant pump.

The double-path lubricating system comprises two lubricating motor pumps (namely a first lubricating motor pump 1-1 and a second lubricating motor pump 1-2), a throttle valve or a flow switch 2, a motor, a cooler 5, a filter 4, a pressure gauge 3 and a temperature sensor, wherein the two lubricating motor pumps are used as strong lubricating oil sources of the lubricating system; the throttle valve or the flow switch 2 is used for adjusting the flow; the pressure gauge 3 is used for detecting lubricating oil pressure of crankshaft lubrication and spherical hinge lubrication of the plunger pump; the filter 4 is used for filtering the lubricating oil and providing high-quality oil for lubricating points; the cooler 5 is used for cooling the lubricating oil; the temperature sensor is arranged on a gear oil tank of the plunger pump and used for monitoring the temperature of the lubricating system and feeding the temperature back to the control box.

The oil suction ports of two lubricating motor pumps (namely a first lubricating motor pump 1-1 and a second lubricating motor pump 1-2) are connected with a gear box, oil outlets are connected with a liquid inlet of a filter 4 through a tee joint, a liquid outlet of the filter 4 is connected with a liquid inlet pipeline of a cooler 5, the liquid outlet of the cooler 5 is divided into two paths by the tee joint, a throttle valve or a flow switch 2 is arranged on each path, the two paths are communicated to each lubricating point through a connecting pipeline, the throttle valve or the flow switch 2 is adjusted to be suitable for lubricating flow, a temperature sensor collects the temperature of oil, and the two lubricating motor pumps (namely the first lubricating motor pump 1-1 and the second lubricating motor pump 1-2) are controlled and protected.

Referring to fig. 1 and 2, the working principle of the system is as follows: the lubricating system is divided into two oil sources; in the first path, a first lubricating motor pump A is powered from a plunger pump driving shaft and pumps gear oil (not shown in the figure) from a gear box; the second lubricating motor pump B is driven by a motor, gear oil is pumped out of a gearbox, the two oil paths are combined, filtered by a filter 4 and then enter a cooler 5 for cooling, and then are divided into two paths, the two paths of oil flow are respectively regulated by a throttle valve or a flow switch 2 to enter the flow control of each path, one path of oil flow lubricates a crankshaft of the plunger pump, the other path of oil flow lubricates a spherical hinge of the plunger pump, and the two paths of oil flow are provided with pressure taking ports to monitor pressure through a pressure gauge 3; the plunger pump is provided with a temperature sensor for monitoring the temperature of the oil.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A double-circuit lubricating system is characterized by comprising a cooler (5), a filter (4), a throttle valve or a flow switch (2), a first lubricating motor pump (1-1) and a second lubricating motor pump (1-2); the oil suction ports of the two lubricating motor pumps are connected with the gear box, the oil outlets are connected with the liquid inlet of the filter (4) through a tee joint, the liquid outlet of the filter (4) is connected with the liquid inlet pipeline of the cooler (5), the liquid outlet of the cooler (5) is divided into two paths by the tee joint, a throttle valve or a flow switch (2) is arranged on each path, and then the two paths lead to all lubricating points through connecting pipelines.

2. A dual lubrication system as claimed in claim 1, wherein the two lube motor pumps are used as a source of lube oil for the lubrication system.

3. A two-way lubrication system according to claim 1, characterised in that the throttle or flow switch (2) is used to regulate the flow size.

4. A dual lubrication system according to claim 1, wherein the filter (4) is used for filtering the lubricating oil.

5. A two-way lubrication system according to claim 1, characterised in that the cooler (5) is arranged to cool down the lubricating oil.

6. The dual path lubrication system of claim 1, further comprising a temperature sensor mounted on the gear oil tank of the plunger pump for monitoring the lubrication system temperature.

7. A dual channel lubrication system as claimed in claim 1, further comprising a pressure gauge (3) for sensing the pressure of the lubricating oil at the take-off for the plunger pump crankshaft lubrication and ball-and-socket lubrication.

8. A dual lubrication system as defined in claim 1 wherein one of the lubrication motor pumps draws gear oil from the gearbox by taking power from the plunger pump drive shaft.

9. The dual lubrication system of claim 8 further comprising an electric motor, wherein another lubrication motor pump is driven by the electric motor to pump gear oil from the gearbox.

10. A dual path lubrication system as claimed in any one of claims 1 to 9 wherein the system provides lubrication to the emulsion pump crankcase and ball joint.