CN208221035U - A kind of lubrication device of compressors - Google Patents

Abstract

The utility model discloses a kind of lubrication device of compressors, belong to compressor field, including compressor, fueller；It further include the first oil pressure sensor, oil inlet pipe, oil return pipe, piston, end cap, relief conduit and controller；Solenoid valve, the first oil strainer, the second oil pressure sensor and pressure maintaining valve are successively arranged along oil inlet direction on oil inlet pipe；Solenoid valve is electrically connected with the controller respectively；Offer plunger shaft on compressor, compressor is equipped with the pressure relief vent being connected with plunger shaft, and one end of pressure relief vent and relief conduit is interconnected, and the other end of relief conduit is interconnected by oil return pipe and fueller.A kind of lubrication device of compressors of the utility model, is not only simple in structure, and the feed lubrication of compressor internal stability may be implemented, realize that compressor internal oil pressure is adjusted, it ensure that oil sealing position seals, it is ensured that the stability of compressor operation improves the service life of compressor.

Description

A kind of lubrication device of compressors

Technical field

The utility model relates to compressor fields, more particularly to a kind of lubrication device of compressors.

Background technique

Currently, existing lubrication device of compressors is mainly by the built-in oil pump in oil groove profit in compressor operation Lubricating oil is delivered to oil strainer, and lubricating oil flows into inside compressor again after filter filters, the lubricant passage way in compressor Make in compressor respectively friction pair good lubrication can be obtained under various operating conditions, to reduce the abrasion of components, guarantee compression The normal work of machine, while heat, abrasive dust, cooling and the effect for cleaning friction surface of components friction surface are also taken away, from And it ensure that the safe and stable operation of compressor assembly.Compressor lubricant oil is pumped into after compressor lubrication oil circuit directly by oil pump at present Engaging friction pair is connect, the excessive or too small phenomenon of oil pressure may occur in local location in this way in compressor operation, it is special It is not to be easy to cause band permeability sealing station oil pressure is excessive, and oil pressure is too small, may make low on fuel, leads to zero The lubrication of component is bad.It is, therefore, desirable to provide effective scheme solves problem above.

Utility model content

In order to overcome the drawbacks of the prior art, a kind of lubrication device of compressors of the utility model, is not only simple in structure, and And the feed lubrication of compressor internal stability may be implemented, it realizes that compressor internal oil pressure is adjusted, ensure that oil sealing position seals Property, it is ensured that the stability of compressor operation improves the service life of compressor.

For this purpose, the utility model uses following technical scheme:

The utility model provides a kind of lubrication device of compressors, including compressor, for supplying inside the compressor The fueller of oil；

It further include the first oil pressure sensor being fixed on the fueller, for being connected to the fueller and institute State the oil inlet pipe, the connection fueller and the oil return pipe of the compressor, the work positioned at the compressor inner cavity of compressor Plug, for covering the end cap for setting the compressor and being fixedly connected with described compressor one end, being fixedly connected with the compressor Relief conduit and the controller being fixed on the fueller；

The Single port of the fueller is connected by the oil inlet pipe with the compressor；

Solenoid valve, the first oil strainer, second for being successively fixed with and being interconnected along oil inlet direction on the oil inlet pipe Oil pressure sensor and pressure maintaining valve；

First oil pressure sensor, the solenoid valve, second oil pressure sensor and the pressure maintaining valve respectively with The controller electrical connection；

Plunger shaft is offered on the compressor, the plunger shaft is in contact perpendicular to the end cap with the compressor End face；The through-hole of connection oil inlet and the plunger shaft is equipped with inside the compressor, the piston is located in the plunger shaft, The piston is slidably matched with the plunger shaft；

It further include the compressed spring that and one end interior positioned at the plunger shaft is fixed in the pistion recess, the compression The other end of spring is fixedly connected with the end cap, and the compressor is equipped with the pressure relief vent being connected with the plunger shaft, described Pressure relief vent connect and is interconnected with one end of the relief conduit, and the one of the other end of the relief conduit and the oil return pipe End connects and is connected, and the other end of the oil return pipe connect and is interconnected with the another port of the fueller.

Optionally, the pressure maintaining valve is piston type pressure maintaining valve.

Optionally, the second interconnected oil strainer, heat exchange are successively fixed on the oil return pipe along oil return direction Device.

Optionally, the oil return pipe is fixedly connected and is interconnected with the relief conduit by triple valve.

Optionally, the fueller is equipped with oil mass monitoring device.

The utility model has the following beneficial effects:

A kind of lubrication device of compressors of the utility model, is not only simple in structure, and may be implemented steady inside compressor Fixed feed lubrication realizes that compressor internal oil pressure is adjusted, ensure that oil sealing position seals, it is ensured that compressor is run steady It is qualitative, improve the service life of compressor.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram for lubrication device of compressors that specific embodiment of the present invention provides.

In figure:

1, fueller；2, the first oil pressure sensor；3, oil inlet pipe；4, solenoid valve；5, the first oil strainer；6, the second oil Pressure sensor；7, pressure maintaining valve；8, compressor；9, end cap；10, piston；11, compressed spring；12, relief conduit；13, triple valve； 14, oil return pipe；15, the second oil strainer；16, heat exchanger；81, oil inlet；82, through-hole；83, plunger shaft；84, pressure relief vent.

Specific embodiment

Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.

Fig. 1 schematically illustrates a kind of structural schematic diagram of lubrication device of compressors provided by the utility model, such as Fig. 1 It is shown, including compressor 8, for the fueller 1 to 8 oil inside offering of compressor；It further include being fixed on fueller 1 First oil pressure sensor 2, for being connected to fueller 1 and the oil inlet pipe 3 of compressor 8, being connected to fueller 1 and compressor 8 Oil return pipe 14, positioned at the piston 10 of 8 inner cavity of compressor, for covering the end cap for setting compressor 8 and being fixedly connected with 8 one end of compressor 9, the relief conduit 12 being fixedly connected with compressor 8 and the controller being fixed on fueller 1；The one of fueller 1 Port is connected by oil inlet pipe 3 with compressor 8；The electromagnetism for being successively fixed with and being interconnected along oil inlet direction on oil inlet pipe 3 Valve 4, the first oil strainer 5, the second oil pressure sensor 6 and pressure maintaining valve 7；First oil pressure sensor 2, the 4, second oil of solenoid valve Pressure sensor 6 and pressure maintaining valve 7 are electrically connected with the controller respectively；Offer plunger shaft 83 on compressor 8, plunger shaft 83 perpendicular to The end face that end cap 9 is in contact with compressor 8；The through-hole 82 of connection oil inlet 81 and plunger shaft 83, piston are equipped with inside compressor 8 10 are located in plunger shaft 83, and piston 10 is slidably matched with plunger shaft 83；Further include be located at plunger shaft 83 in and one end be fixed at The other end of compressed spring 11 in 10 groove of piston, compressed spring 11 is fixedly connected with end cap 9, and compressor 8 is equipped with and piston The pressure relief vent 84 that chamber 83 is connected, pressure relief vent 84 connect and are interconnected with one end of relief conduit 12, relief conduit 12 it is another One end connect and is connected with one end of oil return pipe 14, and the other end of oil return pipe 14 is connect simultaneously with the another port of fueller 1 It is interconnected.

Above to implement, specifically, since controller is electrically connected with solenoid valve 4, controller controls solenoid valve 4 and opens, when When entire lubricating arrangement can start to work, the lubricating oil in fueller 1 enters oil inlet pipe 3 and the successively oily mistake of solenoid valve 4, first Filter 5 and pressure maintaining valve 7 enter inside compressor 8, are directly entered friction pair and are lubricated；First oil pressure sensor 2 can supervise The oil pressure of fueller 1 is measured, the second oil pressure sensor 6 can monitor the oil pressure on oil inlet pipe 3, and pressure maintaining valve 7 can be stablized simultaneously Adjust the oil pressure on oil inlet pipe 3, it is ensured that the oil pressure of oil inlet pipe 3 is stablized；In more detail, the first oil pressure sensor 2, the second oil pressure Sensor 6 and pressure maintaining valve 7 are electrically connected with the controller respectively；It is examined respectively by the first oil pressure sensor 2 and the second oil pressure sensor 6 For the analog signal transmission measured to controller, controller provides corresponding output signal according to the pressure difference signal received, to control Pressure maintaining valve 7 processed keeps 7 outlet pressure of pressure maintaining valve to exist when can guarantee in the continually changing situation of inlet pressure of pressure maintaining valve 7 In the range of setting, it ensure that lubricating oil enters the stability of compressor 8；To be communicated to fueller 1 and compressor 8, guarantee The stabilization of oil pressure difference, and can guarantee the precision and flexibility of control.Plunger shaft 83, piston are offered on compressor 8 simultaneously The end face that chamber 83 is in contact perpendicular to end cap 9 with compressor 8；Connection oil inlet 81 and plunger shaft 83 are equipped with inside compressor 8 Through-hole 82, piston 10 are located in plunger shaft 83, and piston 10 is slidably matched with plunger shaft 83；Further include be located at plunger shaft 83 in and one The compressed spring 11 being fixed in 10 groove of piston is held, the other end of compressed spring 11 is fixedly connected with end cap 9, compressor 8 Equipped with the pressure relief vent 84 being connected with plunger shaft 83；When entering the oil pressure normal table inside compressor 8, lubricating oil passes through logical Hole 82 enters in plunger shaft 83, and piston 10 is still in a certain position in plunger shaft 83 under 11 collective effect of lubricating oil and compressed spring It sets；When oil pressure is excessive, lubricating oil will push piston 10 mobile to 9 direction of end cap, when piston 10 be moved to make plunger shaft 83 with When pressure relief vent 84 is connected, lubricating oil is flowed out in relief conduit 12 by pressure relief vent 84；Piston 10 stops movement at the same time, So that 8 internal oil pressure of compressor is minimized；And when the oil pressure in lubricant passage way is too small, compressed spring 11 will be pushed and be lived Plug 10 is mobile to 82 direction of through-hole, so that by the connection of the pressure relief vent 84 of blocking piston chamber 83 and internal oil passages, lubricating oil will not It can be flowed out from pressure relief vent 84, therefore increase the oil pressure in internal oil passages and increase, therefore can automatically adjust in compressor 8 Oil pressure in portion's internal oil passages makes the oil pressure in internal oil passages remain at stable state, so that compressor 8 is working In the process be not in the excessive or too small phenomenon of local location oil pressure, prevented to cause in sealing station since oil pressure is excessive close Envelope band permeability, and oil pressure is too small, makes low on fuel, leads to the situation hair that the lubrication of compressor internal friction pair is bad It is raw, it realizes that compressor internal oil pressure is adjusted, ensure that oil sealing position seals, it is ensured that the stability of compressor operation improves The service life of compressor；Since one end of pressure relief vent 84 and relief conduit 12 is interconnected, the other end of relief conduit 12 It is interconnected by oil return pipe 14 and fueller 1, therefore the oil of relief conduit 12 and the oil of internal oil passages pass through oil return pipe 14 return in fueller 1, realize the recycling of lubricating oil.

Optionally, pressure maintaining valve 7 is piston type pressure maintaining valve.

Specifically, since the liquid compressibility of lubricating oil is bigger, lubricating oil flows in longer pipeline Pressure transient situation is often resulted in, pressure maintaining valve 7 is arranged close to 8 end of compressor by setting, in this way, lubricating oil passes through pressure stabilizing Enter inside compressor 8 as early as possible after valve 7, avoids lubricating oil and enter caused pressure change before compressor 8.

Optionally, the second interconnected oil strainer 15, heat exchange are successively fixed on oil return pipe 14 along oil return direction Device 16.

The second oil strainer 15 for specifically, being successively fixed with and be interconnected along oil return direction on oil return pipe 14, Heat exchanger 16；Since the lubricating oil after returning compressor 8 and lubricating has certain temperature and impurity, passing through oil return pipe 14 Into passing through the second oil strainer 15, heat exchanger 16 before fueller 1, the second oil strainer 15 can will be from returning compressor The various impurity developed in 8 are filtered, and prevent it from entering in fueller 1, improve lubricating oil in fueller 1 Quality, avoid the line clogging that may cause, heat exchanger 16 can cool down lubricating oil in oil return pipe 14, improve profit The recovery efficiency of lubricating oil, to realize the recycling of lubricating oil.

Optionally, to be easy to disassemble, oil return pipe 14 is fixedly connected and is interconnected with relief conduit 12 by triple valve 13.

Optionally, convenient for the oil mass in real-time monitoring fueller 1, to guarantee sufficient lubricating oil supply, fueller 1 It is equipped with oil mass monitoring device.

The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to In the range of the utility model protection.

Claims (5)

1. a kind of lubrication device of compressors, including compressor (8), for the fueller to the compressor (8) oil inside offering (1)；It is characterized by:

It further include the first oil pressure sensor (2) being fixed on the fueller (1), for being connected to the fueller (1) with the oil inlet pipe (3) of the compressor (8), the oil return pipe (14) that is connected to the fueller (1) and the compressor (8), Positioned at the compressor (8) inner cavity piston (10), for cover set the compressor (8) and with the compressor (8) one end it is solid Surely the end cap (9) that connects, the relief conduit (12) being fixedly connected with the compressor (8) and it is fixed at the fuel feeding dress Set the controller on (1)；

The Single port of the fueller (1) is connected by the oil inlet pipe (3) with the compressor (8)；

The solenoid valve (4) that is successively fixed with and is interconnected along oil inlet direction on the oil inlet pipe (3), the first oil strainer (5), Second oil pressure sensor (6) and pressure maintaining valve (7)；

First oil pressure sensor (2), the solenoid valve (4), second oil pressure sensor (6) and the pressure maintaining valve (7) it is electrically connected respectively with the controller；

It is offered plunger shaft (83) on the compressor (8), the plunger shaft (83) is perpendicular to the end cap (9) and the compression The end face that machine (8) is in contact；The through-hole of connection oil inlet (81) and the plunger shaft (83) is equipped with inside the compressor (8) (82), the piston (10) is located in the plunger shaft (83), and the piston (10) is slidably matched with the plunger shaft (83)；

It further include the compressed spring (11) that and one end interior positioned at the plunger shaft (83) is fixed in the piston (10) groove, The other end of the compressed spring (11) is fixedly connected with the end cap (9), and the compressor (8) is equipped with and the plunger shaft (83) pressure relief vent (84) being connected, the pressure relief vent (84) connect and are interconnected with one end of the relief conduit (12), The other end of the relief conduit (12) connect and is connected with one end of the oil return pipe (14), the oil return pipe (14) it is another One end connect and is interconnected with the another port of the fueller (1).

2. a kind of lubrication device of compressors as described in claim 1, it is characterised in that:

The pressure maintaining valve (7) is piston type pressure maintaining valve.

3. a kind of lubrication device of compressors as described in claim 1, it is characterised in that:

Interconnected the second oil strainer (15), heat exchanger are successively fixed on the oil return pipe (14) along oil return direction (16)。

4. a kind of lubrication device of compressors as described in claim 1, it is characterised in that:

The oil return pipe (14) is fixedly connected and is interconnected with the relief conduit (12) by triple valve (13).

5. a kind of lubrication device of compressors as described in claim 1, it is characterised in that:

The fueller (1) is equipped with oil mass monitoring device.