CN2156371Y

CN2156371Y - Plunger type adjustable quantitative distributor with display rod

Info

Publication number: CN2156371Y
Application number: CN 93209497
Authority: CN
Inventors: 张明华
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-20
Filing date: 1993-04-20
Publication date: 1994-02-16
Anticipated expiration: 2003-04-20

Abstract

The utility model belongs to the field of the application technique of mechanical lubrication equipment, which alters the insufficiencies of the traditional mechanical quantitative lubricating distributor of bad seal and easy oil supply failure. A one-way valve composed of an o-shaped sealing ring is arranged in a distributor casing, and the o-shaped sealing ring is positioned in a conduit which is used for communicating an oil discharge pipe and a distributing chamber. A piston port is arranged on the inner wall of the distributing chamber, and the outer wall is provided with a piston display cavity. A sealing surface is arranged on the contact surface of the one-way valve and a plunger piston or between the one-way valve and the plunger piston. The utility model has good seal and reliable and stable performance, and can display the states of device bodies.

Description

Plunger type adjustable quantitative distributor with display rod

The utility model belongs to machinery and the lubricated equipment applied technical field of various machine tools.

Traditional quantitative distributor is used for machinery and various machine tool rationing lubricant oil.Usually be made up of distributor body 13, plunger 2, oil-feed pressure pipe 21, oil outlet tube 10 and one-way valve 11, one-way valve adopts by the structure of spring controlled valve gap as unidirectional unlatching conduit, adopts the direct closedtop one-way valve inlet of plunger top.There are many deficiencies in this structure, poor sealing at first, and the valve gap of one-way valve can not seal the oil outlet tube loop, cause part oil to return system, and influence causes the minimizing of life of equipment to the fuel delivery of equipment rubbing surface.Secondly, 1 of plunger top and one-way valve entry end often causes point of contact easily to misplace, and effectively leakproof one-way valve, make the quantitative distributor fuel feeding malfunctioning.

In addition, this quantitative distributor can not be adjusted the fuel delivery in the distributor chamber and show whether distributor is in running order, and this just brings many inconvenience to use.

Therefore, the purpose of this utility model is: design a kind of plunger type adjustable quantitative distributor with display pole, make it have good sealing property and stability, can show and adjust fuel delivery simultaneously.

The utility model realizes that the method for purpose is: be provided with an one-way valve of being made up of O-ring seals 6 between oil outlet tube and distributor chamber, O-ring seals 6 is arranged in the pipeline that oil outlet tube communicates with distributor chamber, the interior ring of the logical O-ring seals of distributor chamber.On the surface of contact of one-way valve and plunger or between be provided with a sealing surface of forming by elastic material, sealing surface can be O-ring seals 5 or is seal ring, it is positioned on the one-way valve of distributor chamber one side, the outward edge of the inward flange clamping O-ring seals 5 of gland, individual piston mouth is arranged on the inwall of distributor chamber, the plunger hole slot that its outer end and piston show that the chamber communicates, plunger is provided with one and piston correspondence, itself and oil inlet pipe communicate, and an end of piston and display pole links to each other.The said structure design has reached the purpose of this utility model.

The utility model has the advantages that to have good sealing property and stable working state, can show and adjust supply simultaneously.

Fig. 1 is the utility model schematic representation

Cylinder iron make distributor body 13 of the present utility model, swivel nut 14, gland nut 15, oil extraction joint 7 and hollow screw 9.Make cylindrical distributor chamber 4 in distributor body, one end and oil-feed pressure pipe 21 communicate, and the other end communicates by one-way valve 11 and oil outlet tube 10.The plunger 2 that its center, top is cone shape is positioned at distributor chamber 4, its circular cone dignity and 21 pairs of direction settings of oil-feed pressure pipe, and the bottom surface of plunger is provided with a plunger hole 1 that communicates with oil inlet pipe 21.Individual piston mouth 19 is arranged on the inwall of distributor chamber 4, and its outer end is provided with piston and shows that chamber 20, piston mouth and piston show that the chamber communicates.Be provided with a loop pillar consent groove 24 on the plunger sidewall of corresponding piston mouth 19, the plunger hole slot communicates by plunger hole 1 and oil inlet pipe.During contact seal that plunger 2 rises and one-way valve enters the mouth, the lubricant oil of oil inlet pipe can enter piston by plunger hole and plunger hole slot and show chamber 20.

Piston shows that an end that is provided with a piston 22 itself and display pole 16 in the chamber 20 links to each other, the other end is positioned at piston and shows outside the chamber 20, be provided with spring 17 between piston 22 and the gland nut, swivel nut 14 shows that with piston chamber and distributor body 13 are connected as a single entity, gland nut 16 is coupling display pole and is screwed onto on the swivel nut 14, tightens or loosen gland nut to make spring contraction or extension to adjust the stroke of piston.

The one side of plunger 2 is sealed oil inlet pipe, another side be provided with spring 3 in order to compress plunger, ring gland 12 is fixed on spring 3 in the distributor chamber.Upper end, one-way valve that one-way valve 11 is positioned at gland 12 are provided with a groove towards an end of distributor chamber, the inward flange that is provided with an O-ring seals 5, gland in it blocks the outward edge of O-ring seals 5, obviously this O-ring seals 10 is positioned on the surface of contact of one-way valve and plunger 2, promptly when plunger rises, but the cone apical grafting of its front end is on the interior ring of O-ring seals.The seal ring of other shape that O-ring seals also can be made by rubber replaces.

One-way valve in the distributor body between plunger and bipyramid cutting ferrule 8 is made up of O-ring seals 6, O-ring seals is arranged in the pipeline that oil outlet tube 10 communicates with distributor chamber 4, and the communicate interior ring of O-ring seals 6 of one-way sealing oil outlet tube 10 to pipeline, the distributor chamber of distributor chamber.Oil outlet tube 10 communicates with the outer shroud of O-ring seals 6.Fixedly the inner of one-way valve and oil outlet tube 10 will be at 8 chuckings of the bipyramid cutting ferrule on the oil outlet tube outer wall in order to sealing oil outlet tube outer wall with hollow screw 9 on distributor body 13 with oil extraction joint 7.

During use, the lubricant oil of the high pressure of drive being supplied with by oil pressure pump enters distributor chamber 4 from oil inlet pipe 21 and pushes away on plunger 2.When plunger is up, in the time of on the interior ring of the cone apical grafting O-ring seals 5 of spring 3 contractions, plunger front end, its expansion, and the sealing distributor chamber leads to the pipeline of oil outlet tube 10, the plunger hole slot 24 and the piston mouth 19 that are positioned at this moment on the plunger sidewall overlap, pressure oil in the oil inlet pipe is pressed into piston from plunger hole from the plunger hole slot and shows chamber 20, and piston 22 pressurized layman pressuring springs 17 shrink and drive display pole 16 outside moving to show that piston shows the oil inlet quantity in the chamber 20.Obviously this oil inlet quantity is subjected to the control of spring 17 pressure.Therefore, gland nut 15 makes spring shrink its pressure increase, and then compressing piston 22 can reduce oil inlet quantity.Otherwise then oversize piston shows the oil inlet quantity in chamber.

After oil pressure pump cut out, plunger lost pressure, under the effect of spring 3, fell the bottom to distributor chamber after rise.At this moment, plunger hole slot 24 on the plunger sidewall and 19 dislocation of piston mouth, the piston mouth is communicated with distributor chamber 4, the spring 17 that is positioned at piston demonstration chamber presses pistons 22 piston to be shown the oil in chamber enters one-way valve through distributor chamber and washes O-ring seals 6 inflow oil outlet tubes 10 open through oil outlet tube arrival equipment rubbing surface, finishes quantitative fuel delivery.

The utility model is not limited only to said structure for the method with plunger seal one-way valve inlet, but its inventive point all is based on the surface of contact of one-way valve 11 and plunger or between be provided with a sealing surface of forming by elastic material and produce.This sealing surface can be foregoing O-ring seals 6 and also can be and be positioned at distributor chamber one side and be looped around seal ring around the one-way valve inlet.Certain this resilient seal surface also is positioned at the rubber boss 23 on the plunger 2 or being attached on the plunger top by elastic material that the plunger top with iron work fuses, its effect all is identical, all is to change soft sealing configuration into by the hardware sealing.Elastic material is: rubber, plastics or nylon or the like.

In a word, the utility model is simple in structure, be easy to make, and cost is low, good airproof performance, reliable working performance, stable, and can show distributor state of living in and adjust fuel delivery, is a kind of comparatively desirable dispensing arrangement.

Reliable working performance, stable, and can show distributor state of living in and adjust fuel delivery, be a kind of comparatively desirable dispensing arrangement.

Claims

1, a kind of plunger type adjustable quantitative distributor with display pole, by distributor body (13), plunger (2), oil inlet pipe (21), oil outlet tube (10) and one-way valve (11) are formed, it is characterized in that: between oil outlet tube (10) and distributor chamber (4), be provided with a one-way valve (11) by O-ring seals (6), O-ring seals (6) is arranged in the pipeline that oil outlet tube communicates with distributor chamber, distributor chamber leads to the interior ring of O-ring seals (6), on the surface of contact of one-way valve and plunger (2) or between be provided with a sealing surface of forming by elastic material, sealing surface can be O-ring seals (5) or is seal ring, it is positioned on the one-way valve of distributor chamber one side, the outward edge of the inward flange clamping O-ring seals (5) of gland, individual piston mouth (19) is arranged on the inwall of distributor chamber, its outer end and piston show that chamber (20) communicates, plunger (2) is provided with the plunger hole slot (24) of and piston mouth correspondence, plunger hole slot and oil-feed pressure pipe communicate, piston (22) links to each other with an end of display pole (16), be provided with spring (17) between piston (22) and the gland nut (15), gland nut is screwed onto on the swivel nut (14).

2, by the described a kind of plunger type adjustable quantitative distributor of claim 1, it is characterized in that with display pole: but the cone apical grafting of plunger front end is on the interior ring of O-ring seals (5).

3, described a kind of with the plunger-type quantitative distributor that shows bar by claim 1, it is characterized in that: sealing surface can be and is positioned at the boss of making of rubber (23) on the plunger or can be the sealing surface of being made by elastic material that fuses with plunger top.