CN1325301C

CN1325301C - Automatic centralized lubricating system of vehicle chassis

Info

Publication number: CN1325301C
Application number: CNB2005100604074A
Authority: CN
Inventors: 盛奎川; 钱湘群; 宋慧芝; 项士英; 余有芳
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2005-08-16
Filing date: 2005-08-16
Publication date: 2007-07-11
Anticipated expiration: 2025-08-16
Also published as: CN1730317A

Abstract

The present invention discloses an automatic centralized lubricating system for a vehicle chassis, which comprises a motor pump (6) and an electronic monitor (3) connected with the motor pump (6), wherein at least two oil distributors (1) are connected to the motor pump (6) via a main pipe (2), one end of a pressure switch (4) is connected with the electronic monitor (3) and the other end is connected with the inlet end of an oil distributor (1) which is fastest from the motor pump (6), and a distributing pipe (5) is connected with the oil distributors (1). The centralized lubricating system of a vehicle chassis of the invention has compact structure, high automation, reliable and stable working performance, wide lubricating range, automatic self-timing, and quantitative oil supply.

Description

A kind of vehicle chassis automatic centralized lubrication system

Technical field

The present invention relates to a kind of lubricating system, particularly a kind of vehicle chassis automatic centralized lubrication system.

Background technology

At present, the movable parts on domestic automobile and the engineering machinery vehicle chassis generally adopts the mode of artificial stuffing to be lubricated.Its shortcoming is to need shutdown operation, and labor intensity of operating staff is big, operation easier is big; Injection flow and oiling cycle are wayward; Can't realize supplying at regular time and quantity fat, the grease consumption is big and lubricant effect is bad; Owing to be not hermetically sealed environment, the pouring orifice on the lubricating point is stopped up by silt easily, very easily brings silt into oil duct during oiling, thus the wearing and tearing of accelerated movement part; Lubricating point also might occur and omit situations such as oiling.

The one-shot chassis lubrication system can realize that by configuration corresponding controller or monitor self-timing is lubricated, can not only improve the efficient and the effect of lubricated maintenance, and save maintenance cost, prolongs the chassis life-span.But there is following problem in domestic existing auto lube device: (1) system architecture complexity, the element commonality is low.(2) by the work-hours of controller setting Oil pump electrical machinery, System production time is long, consumption of current is big.(3) regulate oil main line pressure by by pass valve, working connection pressure is higher.Grease in high pressure oil sputter of overflowing and the stirring fuel tank can not be eliminated the bubble that charges in the grease for a long time voluntarily.(4) reliability and stability of system are relatively poor: the lubricating system that has lacks fault detection capability because of not adorning pressure sensor (or pressure switch).

Summary of the invention

At the deficiencies in the prior art part, the invention provides a kind of compact conformation, degree of automation height, reliable working performance, stable, lubricated wide, can self-timing, quantitatively supply the vehicle chassis centralized grease lubricating system of fat.

The present invention is for reaching above purpose, be to realize: a kind of vehicle chassis automatic centralized lubrication system is provided by such technical scheme, comprise motor-drive pump and coupled electronic monitor, motor-drive pump comprises the pump housing, be respectively equipped with oiling interface and oil outlet on the pump housing, be provided with oil sump in the pump housing, the oil pump that links to each other with DC machine, the oil inlet of oil pump is connected with the bottom of oil sump, the oil outlet of oil pump links to each other with oil outlet by pipeline, on pipeline, be respectively equipped with unloader valve, by pass valve, the exit end of by pass valve is connected with oil sump, and the interface that refuels is connected with oil sump; At least two oil distributors link to each other with oil outlet by being responsible for, and an end of pressure switch links to each other with electronic monitor, the other end links to each other with the import of distance motor-drive pump oil distributor farthest; Distribution pipe links to each other with oil distributor.

Further improvement as vehicle chassis automatic centralized lubrication system of the present invention: electronic monitor comprises reset circuit, data memory, attention display, the circuit for controlling motor that links to each other with the PIC micro controller system respectively, pressure switch links to each other with the PIC micro controller system, and DC machine links to each other with circuit for controlling motor.

Vehicle chassis automatic centralized lubrication system of the present invention has following beneficial effect: (1) lubricating system compact conformation, element commonality are good.(2) can set lubricated pitch time and monitoring period by electronic monitor: the oil pump work-hours depends on the size of the total oil reserve of pump performance specification and oil distributor, and automatically adjusts by pressure switch; The DC machine work-hours that links to each other with oil pump is short, and operation pressure is low in being responsible for.(3) total system has fault detection capability: in monitoring period, the operation pressure in being responsible for does not reach rated pressure, and pressure switch can not be closed, and then electronic monitor is reported to the police.(4) chance failure occurs when total system, when being responsible for internal pressure and rising to the control presssure of by pass valve, the by pass valve oil spilling plays the effect that protection oil pump and line seal part are not damaged.(5) need not to shut down and can self-timing realize lubricated to movement node quantitatively, reduced operator's labour intensity and grease waste and environmental pollution, improved the degree of utilization of vehicle, be applicable to the auto lube of passenger vehicle, truck and engineering machinery chassis.

Description of drawings

Fig. 1 is the annexation simplified schematic diagram of vehicle chassis automatic centralized lubrication system of the present invention;

Fig. 2 is that the internal connection of electronic monitor 3 among Fig. 1 concerns simplified schematic diagram;

Fig. 3 is the sectional structure scheme drawing of motor-drive pump 6 among Fig. 1.

The specific embodiment

With reference to above-mentioned accompanying drawing, the specific embodiment of the present invention is elaborated.Fig. 1～Fig. 3 comprises motor-drive pump 6,3, two oil distributors 1 of electronic monitor, the person in charge 2, pressure switch 4 in conjunction with having provided a kind of vehicle chassis automatic centralized lubrication system, and distribution pipe 5 is connected with oil distributor 1.

Motor-drive pump 6 comprises the pump housing 601, is respectively equipped with oiling interface 609 and oil outlet 603 on the pump housing 601; Be provided with oil sump 607, DC machine 602, oil pump 606 in the pump housing 601; This DC machine 602 links to each other with oil pump 606, and being responsible for provides propulsion source to oil pump 606.The oil inlet of oil pump 606 is connected with the bottom of oil sump 607, the oil outlet of oil pump 606 links to each other with oil outlet 603 by pipeline 605, be provided with respectively unloader valve 604, the by pass valve 608 that pipeline 605 therewith is connected successively according to fuel-displaced direction on this pipeline 605, the exit end of by pass valve 608 is connected with oil sump 607.The interface 609 that refuels is connected with oil sump 607; Oil outlet 603 links to each other with the person in charge 2.The person in charge 2 exit end is connected with the entrance point of each oil distributor 1.It is the described oil distributor of ZL03210619.X that oil distributor 1 can be selected for use as the patent No..

Electronic monitor 3 comprises PIC micro controller system 303, and reset circuit 301, data memory 302, attention display 304, circuit for controlling motor 305 link to each other with PIC micro controller system 303 respectively; DC machine 602 links to each other with circuit for controlling motor 305.Entrance point place at distance oil outlet 603 oil distributor 1 (promptly the person in charge 2 between the two is the longest) farthest is provided with pressure switch 4, because the entrance point of oil distributor 1 links to each other with the person in charge 2, so pressure switch 4 can sense the pressure in this section person in charge 2.The signal wire (SW) of this pressure switch 4 links to each other with PIC micro controller system 303.

During actual the use, the ignition lock of vehicle motor links to each other with PIC micro controller system 303.Its working process is as follows: the fuel feeding pitch time that electronic monitor 3 sets, the monitoring period of pressure switch etc. are stored in the data memory 302, and the fuel feeding pitch time can be adjusted according to actual needs.Add up the time of run of driving engine by the break-make of vehicle ignition switch, PIC micro controller system 303 compares this accumulated running time and the fuel feeding pitch time that is stored in the data memory 302, when accumulated running time reaches the fuel feeding pitch time, PIC micro controller system 303 sends operating instruction by circuit for controlling motor 305 to DC machine 602, and DC machine 602 drives oil pump 606 work.People by refueling interface 609 to oil sump 607 adding greases, make in the oil sump 607 to be full of grease in advance.Oil pump 606 is extracted into oil outlet 603 with the grease in the oil sump 607.Oil outlet 603 is transferred to each oil distributor 1 with grease by being responsible for 2.When the pressure in the person in charge 2 rose to pressure switch 4 closures, pressure switch 4 passed to PIC micro controller system 303 with this information, and PIC micro controller system 303 sends out-of-work instruction by circuit for controlling motor 305 to DC machine 602; Simultaneously, unloader valve 605 carries out off-load automatically, causes being responsible for 2 oil pressure and descends rapidly.This moment, oil distributor 1 entered the fuel feeding situation, provided grease by distribution pipe 5 to lubricating point (promptly need lubricate each friction pair of vehicle component chassis) by oil distributor 1.

Under the normal working, by pass valve 608 is not opened oil spilling, only plays safety valve.If total system breaks down; oil pump 606 still works on, and the person in charge 2 and pipeline 605 internal pressures that are connected can continue to rise, when reaching the oil pressure relief of by pass valve 608; by pass valve 608 is opened oil spilling, plays the effect of protecting oil pump 606 and the annex of being responsible for 2 not to be damaged.

When pressure switch 4 is closed in less than the monitoring period that sets, send out-of-work instruction by circuit for controlling motor 305 to DC machine 602 by PIC micro controller system 303; When pressure switch 4 is still not closed behind the monitoring period that arrival sets, send alarm command to attention display 304 by PIC micro controller system 303.

At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.

Claims

1, a kind of vehicle chassis automatic centralized lubrication system, it is characterized in that: comprise motor-drive pump (6) and coupled electronic monitor (3), described motor-drive pump (6) comprises the pump housing (601), be respectively equipped with oiling interface (609) and oil outlet (603) on the described pump housing (601), be provided with oil sump (607) in the described pump housing (601), the oil pump (606) that links to each other with DC machine (602), the oil inlet of described oil pump (606) is connected with the bottom of oil sump (607), the oil outlet of oil pump (606) links to each other with oil outlet (603) by pipeline (605), (605) are respectively equipped with unloader valve (604) on described pipeline, by pass valve (608), the exit end of described by pass valve (608) is connected with oil sump (607), and described oiling interface (609) is connected with oil sump (607); At least two oil distributors (1) link to each other with oil outlet (603) by being responsible for (2), and an end of pressure switch (4) links to each other with electronic monitor (3), the other end links to each other with entrance point apart from motor-drive pump (6) oil distributor (1) farthest; Distribution pipe (5) links to each other with described oil distributor (1).

2, vehicle chassis automatic centralized lubrication system according to claim 1, it is characterized in that: described electronic monitor (3) comprises reset circuit (301), data memory (302), attention display (304), the circuit for controlling motor (305) that links to each other with PIC micro controller system (303) respectively, described pressure switch (4) links to each other with PIC micro controller system (303), and described DC machine (602) links to each other with circuit for controlling motor (305).