CN2624028Y

CN2624028Y - Front action quantitative grease dispenser

Info

Publication number: CN2624028Y
Application number: CNU03250960XU
Authority: CN
Inventors: 王晓虹; 王明杰; 王炳华
Original assignee: TAIYUAN ZHUORUNDA LUBRCATING HYDRAULIC EQUIPMENT CO Ltd
Current assignee: TAIYUAN ZHUORUNDA LUBRCATING HYDRAULIC EQUIPMENT CO Ltd
Priority date: 2003-04-30
Filing date: 2003-04-30
Publication date: 2004-07-07
Anticipated expiration: 2013-04-30

Abstract

A front act fixed amount grease distributor, comprises an oil valve body and valve plates. A fixed amount valve handle is fixed inside the supply oil supply valve, the compound piston is installed on the fixed amount valve handle to separate the inner cavity of the oil valve into an oil supply cavity, an oil press cavity and an oil storage cavity. The pressure spring is installed on the valve handle at one side of the oil storage tank. A Y shaped valve plug and valve seat are installed in the oil supply cavity at one side of the oil press cavity. When supply oil, the valve seat and the valve plug is opened for the communication of the oil cavity and the oil press cavity. When store oil, the valve seat and the valve plug is sealed, the oil press cavity is communicated with the oil storage cavity through the axial oil through hole and the radial oil through hole of the valve handle. The utility model adopts the method of oil supplying when the oil pump works and oil storing when the oil stops working to supply fixed amount of lubricant to each lubricant point. The performance is stale and the service life is long. The utility model can work normally within the range of 3.5 MP a to 4.5 MP a working pressure, plus 30 to minus 45 degree Celsius environment temperature, 4 mm of outside diameter and 0.75 mm of side wall of the oil pipeline and 4.5 m delivery distance. The utility model can be applied in various traveling machines.

Description

The preceding quantitative grease distributor of action type

(1) technical field

The utility model belongs to machinery lubrication system grease centralized control quantitative distributing device, is specifically related to a kind of running mechanism centralized lubrication system that is used at regular time and quantity to the quantitative grease distributor of lubricating point feed lubricating grease.

(2) background technique

The running mechanism centralized lubrication system is mainly carried out timing, quantitative, centralized lubrication to the some friction pairs in traveling vehicle chassis.Running mechanism all adopts the intermittent type fuel feeding at present, and distributor is in the oil storage state during oil pump work, and distributor then was that every circulation primary is finished system's oil supply and oil storage by distributor to oil condition when oil pump stopped.Distributor is that the inner elastic force of putting spring will be gone up a circuit oil storage and press to lubricating point by built-in plunger.Since running mechanism operation at any time, with territory property, the resistance of grease just increases exponentially in the oil-piping when ambient temperature reduces, and the elastic force of the built-in oil supply spring of the distributor of this mode can't increase thereupon, in addition along with the frequent operation spring fatigue, elastic force reduces gradually, these all can influence normal oil supply lubrication effect, even under-15 ℃～-45 ℃ low temperature environment, distributor may oil supply.

(3) summary of the invention

The technical problem that the utility model mainly solves is: oil supply when adopting oil pump work, and the quantitative grease distributor of the preceding action type of oil storage when oil pump stops, normal oil supply still when being low to moderate-45 ℃ in ambient temperature, it is stable and reliable for performance, long service life.

Technical solution of the present utility model is: the quantitative grease distributor of preceding action type comprises oil supply valve body and valve plate, oil supply bar's pipeline joint and oil supply branch pipe(tube) interface all are arranged on the valve plate: quantitatively valve rod is arranged on the filling valve intracoelomic cavity, be processed with axial oil through and oil through radially on the valve rod, axially the oil through top is communicated with radially oil through is T-shaped; Combined piston is contained on the quantitative valve rod, and the filling valve intracoelomic cavity is divided into fuel supply chamber, pumping cavity and shoe cream room, and pressure spring is contained on the valve rod of shoe cream room one side; Y shape spool and valve seat are positioned at the fuel supply chamber of pumping cavity one side, valve seat and spool are opened during oil supply, fuel supply chamber is communicated with pumping cavity, fuel supply chamber is by valve seat and spool sealing during oil storage, pumping cavity through stem shaft to oil through and radially oil through be communicated with shoe cream room: above-mentioned fuel supply chamber communicates with valve plate oil supply bar pipeline joint, and shoe cream room communicates with valve plate oil supply branch pipe(tube) interface.

When oil pump work is in to oil condition, finishing once, the process of quantitative oil supply is: the lubricating grease with certain pressure enters oil supply valve body left side fuel supply chamber from valve plate fuel feeding duct, promoting Y shape spool and valve seat moves right, pressure grease is opened Y shape spool and is entered in the pumping cavity of oil supply valve body, and spool is sealed the axial oil through of quantitative valve rod simultaneously; The elastic force that the lubricating grease that enters pumping cavity promotes combined piston and overcomes the oil storage spring moves right, the volume of oil supply valve body shoe cream room is reduced gradually, the lubricating grease that a last circulation is stored in shoe cream room by quantitative valve rod radially the oil supply port of oil through, valve plate enter the oil supply pipeline and be delivered to each lubricating point.

When oil pump stopped to be in the oil storage state, finishing once quantitatively, the process of oil storage was; After quantitatively the grease distributor is finished once quantitative oil supply, oil pump quits work, the lubricating grease pressure drop of oil supply valve body fuel supply chamber is to zero, the oil storage spring promotes combined piston and is moved to the left under its elastic force effect, makes the lubricating grease that is stored in the pumping cavity press to Y shape spool and valve seat, the spool oil inlet end is sealed, simultaneously quantitatively the axial oil through of valve rod is opened, and quantitative lubricating fat uses for next work cycle through the quantitative axial oil through of valve rod, radially oil through enters shoe cream room.

The utility model is reasonable in design, and is simple in structure, stable and reliable for performance, long service life.Oil supply when adopting oil pump work, the mode feed lubricating grease of oil storage when oil pump stops, working pressure be 3.5Mpa～4.5Mpa, ambient temperature be+30 ℃～-45 ℃, oil supply pipeline outside the footpath be all can proper functioning in the scope of 0.75mm, fed distance 4.5m for the 4mm wall thickness, at regular time and quantity to each lubricating point feed lubricating grease.Can be widely used in all kinds of running mechanisms, as: motorbus, truck, heavily card, public transit vehicle, engineering machinery etc. have the walking operation at any time, with the timing of the some friction pairs of territory property vehicle chassis, quantitatively, centralized lubrication.

(4) description of drawings

Fig. 1 is embodiment's 1 oil pump work oil supply status architecture schematic representation;

Fig. 2 stops oil storage status architecture schematic representation for embodiment's 1 oil pump;

Fig. 3 is embodiment's 2 oil pump work oil supply status architecture schematic representation;

Fig. 4 stops oil storage status architecture schematic representation for embodiment's 2 oil pumps;

Fig. 5 is the side view of Fig. 1;

Fig. 6 is the side view of Fig. 3.

Wherein: 1, briquetting 2, hold-down bolt 3, oil supply valve body 4, valve seat 5, Y shape spool 6, piston assembly 7, axially oil through 8, quantitatively valve rod 9, oil storage spring 10, sealing screw plug 11, O RunddichtringO 12, oil supply bar's pipeline joint 13, O RunddichtringO 14, valve plate 15, oil supply branch pipe(tube) interface 16, radially oil through 17, position limit pin

(5) embodiment

Embodiment 1:

As Fig. 1, Fig. 2, the quantitative grease distributor of preceding action type comprises oil supply valve body 3 and valve plate 14, and the oil supply valve body is fixedlyed connected with briquetting 1 by position limit pin 17 location, hold-down bolt 2 with valve plate.Oil supply bar's pipeline joint 12 and oil supply branch pipe(tube) interface 15 are arranged on the valve plate.According to this structural design, above-mentioned oil supply branch pipe(tube) interface 15 is even number, as shown in Figure 5.

Quantitatively valve rod 8 is arranged on oil supply valve body 3 inner chambers, and the valve rod outer end is by plug 10 and seal ring 11 location and sealing; Be processed with axial oil through 7 and oil through 16 radially on the valve rod, axially the oil through top is communicated with radially oil through is T-shaped; The combined piston of being made up of left and right sides metal hollow pad and O type circle 6 is contained on the quantitative valve rod 8, and the filling valve intracoelomic cavity is divided into fuel supply chamber ee, pumping cavity mm and shoe cream room nn, and pressure spring 9 is contained on the valve rod of shoe cream room one side; Y shape spool 5 and valve seat 4 are loaded on one, be arranged on the fuel supply chamber ee of pumping cavity mm one side, valve seat and spool are opened during oil supply, fuel supply chamber ee is communicated with pumping cavity mm, fuel supply chamber ee is by the sealing of valve seat and spool during oil storage, pumping cavity mm through stem shaft to oil through 7 and radially oil through 16 be communicated with shoe cream room nn.Above-mentioned fuel supply chamber ee communicates with valve plate oil supply bar pipeline joint 12, and shoe cream room nn communicates with valve plate oil supply branch pipe(tube) interface 15, and the joint is by 13 sealings of O RunddichtringO.

Embodiment 2:

As Fig. 3, Fig. 4, the oil supply valve body 3 of the quantitative grease distributor of preceding action type and valve plate 14 are an overall structure, and the oil supply branch pipe(tube) interface 15 of its output lubricating grease can be according to the quantity setting of lubricating point, as shown in Figure 6.Its working principle is identical with embodiment 1.

Claims

1, a kind of preceding quantitative grease distributor of action type is characterized in that comprising oil supply valve body and valve plate, and oil supply bar's pipeline joint and oil supply branch pipe(tube) interface all are arranged on the valve plate; Quantitatively valve rod is arranged on the filling valve intracoelomic cavity, is processed with axial oil through and oil through radially on the valve rod, and axial oil through top is communicated with radially oil through is T-shaped; Combined piston is contained on the quantitative valve rod, the filling valve intracoelomic cavity is divided into fuel supply chamber, pumping cavity and shoe cream room, pressure spring is contained on the valve rod of shoe cream room one side: Y shape spool and valve seat are positioned at the fuel supply chamber of pumping cavity one side, valve seat and spool are opened during oil supply, fuel supply chamber is communicated with pumping cavity, fuel supply chamber is by the sealing of valve seat and spool during oil storage, pumping cavity through stem shaft to oil through and radially oil through be communicated with shoe cream room; Above-mentioned fuel supply chamber communicates with valve plate oil supply bar pipeline joint, and shoe cream room communicates with valve plate oil supply branch pipe(tube) interface.

2, the preceding quantitative grease distributor of action type according to claim 1 is characterized in that above-mentioned oil supply branch pipe(tube) interface is even number.

3, the preceding quantitative grease distributor of action type according to claim 1 is characterized in that above-mentioned oil supply valve body and valve plate are an overall structure, and oil supply branch pipe(tube) interface of its output lubricating grease can be according to the quantity setting of lubricating point.