CN209510790U - A kind of oil-inlet mechanism of Hydraulic Power Transmission System - Google Patents

Abstract

The utility model discloses a kind of oil-inlet mechanisms of Hydraulic Power Transmission System of hydraulic transmission technology field, including shell, the top side detachable of the shell is fixedly installed with end cap and forms an airtight chamber, the housing cavity bottom is detachably fixed the installation oil filter, the oil outlet of the hydraulic cylinder is connect by the first pipeline with external structure, spray head is equipped at the top of the oil filter, the housing right side wall is equipped with flowline, blowdown valve is installed on flowline, the hydraulic oil of fuel tank is flowed to by overflow valve, oil filter is sprayed to by spray head, it is rinsed the impurity for being deposited on oil filter surface, and since impurity has certain weight, it is easy to be deposited on tank bottoms, the setting of sewage draining valve, regular discharge, more impurity can be discharged, it is reduced the blocking of oil filter occurs, reduce what oil filter filter opening was blocked by impurity It happens, extends oil filter service life, improve working efficiency.

Description

A kind of oil-inlet mechanism of Hydraulic Power Transmission System

Technical field

The utility model relates to hydraulic transmission technology field, specially a kind of oil-inlet mechanism of Hydraulic Power Transmission System.

Background technique

Hydraulic Power Transmission System generally comprises sequentially connected oil-inlet mechanism, throttle valve, reversal valve, hydraulic cylinder and piston, Oil-inlet mechanism includes the fuel tank, hydraulic cylinder, flow spill valve being sequentially connected.Its course of work is: hydraulic cylinder is hydraulic from fuel tank oil suction Cylinder is converted to the mechanical energy of motor the pressure energy of liquid, and hydraulic medium is entered by pipeline through throttle valve and reversal valve hydraulic Cylinder left chamber pushes piston driving workbench to move to right, and the hydraulic medium of hydraulic cylinder right chamber discharge flows back to fuel tank, reversal valve through reversal valve Hydraulic medium enters hydraulic cylinder right chamber after commutation, moves to left piston, and the platform that pushes the work forward reverse movement changes the opening of throttle valve The movement velocity of adjustable hydraulic cylinder.The pressure of hydraulic system can pass through overflow valve regulation.

Inevitably occur various hydraulic oil impurity in hydraulic system, source mainly has: liquid is remained on after cleaning Mechanical-hydraulic oil impurity in pressure system, such as scale, casting sand, welding slag, iron filings, coating, paint skin and cotton yarn bits, outside enter The hydraulic oil impurity of hydraulic system, the dust such as entered through oil filler and dustband etc.；The hydraulic oil that the course of work generates is miscellaneous Matter, such as the fragment that sealing element is formed by hydraulic action, the metal powder of relative wear generation is made in movement, and oil liquid is produced because of oxidation deterioration Raw colloid, asphalitine, breeze etc..It, will everywhere with the ringing of hydraulic oil after above-mentioned hydraulic oil impurity is mixed into hydraulic oil Destruction is played, the normal work of hydraulic system is seriously affected, is such as made between the very little in Hydraulic Elements between relative movement part Gap and throttling pore and gap it is stuck or blocking；The oil film between relative movement part is destroyed, clearance surface is scratched, in increase Portion's leakage, reduces efficiency, increases fever, aggravates the chemical action of oil liquid, keeps oil liquid rotten.

In order to reduce damage of the hydraulic oil impurity to hydraulic system in hydraulic oil, the oil inlet generally required in hydraulic cylinder is set Set oil filter, existing oil filter causes oil filter service life lower there are outer surface a large amount of impurity easy to attach, need through Often the problem of replacement, to increase use cost, and needs to shut down replacement, working efficiency is caused to reduce.

Utility model content

The purpose of this utility model is to provide a kind of oil-inlet mechanisms of Hydraulic Power Transmission System, to solve above-mentioned background technique The existing oil filter of middle proposition causes oil filter service life lower there are outer surface a large amount of hydraulic oil impurity easy to attach, It needs to be replaced frequently, to increase use cost, and the problem of need to shut down replacement, working efficiency is caused to reduce.

To achieve the above object, the utility model provides the following technical solutions: a kind of oil-inlet mechanism of Hydraulic Power Transmission System, Including shell, end cap, hydraulic cylinder, overflow valve, oil filter, oil inlet pipe and blowdown valve, the fixed peace of the top side detachable of the shell Equipped with end cap and an airtight chamber is formed, the housing cavity bottom is detachably fixed the installation oil filter, the oil filter It is connect by the oil inlet pipe with the oil inlet of the hydraulic cylinder, the oil outlet of the hydraulic cylinder passes through the first pipeline and external knot Structure connection, the oil filter top are equipped with spray head, and the end of the spray head is connected to by the second pipeline with the overflow valve, described For overflow valve by third pipeline and first pipeline connection, the housing right side wall is equipped with flowline, is equipped on flowline Blowdown valve.

Preferably, the spray head is umbrella, and inside is hollow cavity, and top surface is equipped with the interface with the second pipeline, and bottom surface is equal One group of spray orifice of even distribution, spray head are located at right above oil filter.

Preferably, the pedestal is connect with end cap by fastening bolt, and forms an airtight chamber.

Preferably, first pipe ends are equipped with throttle valve, and first pipe ends can be connect with external agency.

Preferably, the both ends of first pipeline, the second pipeline and third pipeline are equipped with threaded hole.

Compared with prior art, the utility model has the beneficial effects that flowing to the hydraulic oil of fuel tank by overflow valve, pass through Spray head sprays to oil filter, is rinsed the impurity for being deposited on oil filter surface, and hydraulic cylinder is at work, also has constantly Hydraulic oil flow to spray head, make impurity be difficult to be deposited on oil filter surface, to reduce the feelings that oil filter filter opening is blocked by impurity Condition occurs, and extends oil filter service life, and since impurity has certain weight, is easy to be deposited on tank bottoms, blowdown valve More impurity can be discharged in the setting of door, regular discharge, reduce it and blocking of oil filter occurs, to reduce use Cost, and promote working efficiency.

Detailed description of the invention

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the hydraulic cylinder schematic diagram of internal structure of the utility model；

Fig. 3 is the overflow valve schematic diagram of internal structure of the utility model.

In figure: 100 shells, 110 flowlines, 200 end caps, 300 hydraulic cylinders, 310 hydraulic cylinder bases, 320 first pipelines, Liquid is unidirectional out for 321 throttle valves, 330 second pipelines, 340 third pipelines, 350 plungers, 360 springs, 370 feed liquor check valves, 380 Valve, 400 overflow valves, 410 adjusting knobs, 420 closing cocks, 430 spring bases, 440 springs, 500 oil filters, 510 spray heads, 600 into Oil pipe, 700 blowdown valves, 710 regulation handles, 720 sewage draining exits.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, the common art personnel in this field institute without making creative work The every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides the following technical solutions: a kind of oil-inlet mechanism of Hydraulic Power Transmission System, by hydraulicdriven Hydraulic oil can constantly rinse 500 outer surface of oil filter by overflow valve 400 from top to bottom, facilitate hydraulic oil impurity and be detached from filter Oily device 500 sinks to 100 intracavity bottom of shell, using timing blowdown simultaneously, so that it may effectively extend the use of oil filter 500 Service life, referring to Fig. 1, including shell 100, end cap 200, hydraulic cylinder 300, overflow valve 400, oil filter 500,600 and of oil inlet pipe Blowdown valve 700.

Referring to Fig. 1, the side wall of shell 100 is equipped with flowline 110, specifically, the right side wall of shell 100 be provided with it is logical Hole, the connecting pin outer wall of flowline 110 open up external screw thread (unmarked in figure), in the through-hole that 100 right side wall of shell opens up Side wall opens up internal screw thread (unmarked in figure), is fixed on flowline 110 by the cooperation of external screw thread and internal screw thread and sealing strip On 100 right side wall of shell, flowline 110 is for discharging hydraulic oil impurity；

Referring to Fig. 1, the bottom of end cap 200 is mounted on the top of shell 100, specifically, the bottom sides of end cap 200 Frame opens up four the first thread grooves (unmarked in figure), the top of shell 100 open up four it is corresponding with first thread groove Same internal diameter the second thread groove (unmarked in figure), pass through four the first thread grooves, four the second thread grooves and fastening bolts End cap 200 is fixed on shell 100, end cap 200 forms a closed chamber for installing hydraulic cylinder 300, and with shell 100 Room is as fuel tank；

Please refer to Fig. 1 and Fig. 2, hydraulic cylinder 300 has plunger 350, spring 360, feed liquor check valve 370 and liquid check valve out 380, hydraulic cylinder 300 is mounted on the top of end cap 200, specifically, uniformly opening up three in the terminal pad 310 of hydraulic cylinder 300 A third thread groove (unmarked in figure), position corresponding with three third thread grooves in terminal pad 310 opens up on end cap 200 Three with third thread groove with the 4th thread groove (in figure unmarked) of internal diameter, pass through third thread groove, the 4th thread groove and tight Hydraulic cylinder 300 is fixedly mounted on end cap 200 by fixing bolt, and the front end of plunger 350 is movably embedded in 300 inner cavity of hydraulic cylinder, Plunger 350 is used to the cylinder body of its front end and hydraulic cylinder 300 surrounding cavity, and feed liquor check valve 370 is all provided with liquid check valve 380 out In the intracavity sidewall of hydraulic cylinder 300, feed liquor check valve 370 is used to lead hydraulic oil into cavity, and liquid check valve 380 is used for liquid out Pressure oil exports cavity, spring 360 is connected between 350 front end of plunger and the cylinder body of hydraulic cylinder 300, spring 360 is for driving column Plug 350 moves reciprocatingly；

Fig. 1 and Fig. 3 are please referred to, overflow valve 400 has regulating valve 410, closing cock 420, spring base 430 and spring 440, overflows Stream valve 400 is installed between the second pipeline 330 and third pipeline 340, specifically, 400 right side wall of overflow valve and bottom are equipped with band The both ends of threaded connector, the first pipeline 320, the second pipeline 330 and third pipeline 340 are equipped with threaded hole, overflow valve 400 are threadedly coupled with the connecting pin of the second pipeline 330 and third pipeline 340 respectively by screwed connector, overflow valve 400 be a kind of hydraulic pressure control valve, and level pressure overflow, pressure stabilizing are mainly played in hydraulic device, and system unloaded and safeguard protection are made With 400 left side wall of overflow valve is equipped with regulating valve 410, the oil pressure relief of regulation relief valve 400,400 inner cavity left side wall of overflow valve Central location is provided with groove and slidably connects spring base 430, applies power to the right, the connection of 440 Elastic buckle of spring to spring 440 Between spring base 430 and closing cock 420, the work of spring 440 is used as elastic deformation, provides elastic force, and closing cock 420 controls overflow The folding of 400 spool of valve；

Referring to Fig. 1, it is equipped with spray head 510 at the top of oil filter 500, oil filter 500 is placed in shell 100, and and liquid The oil inlet port of cylinder pressure 300 is connected, specifically, being uniformly provided with four the 5th thread grooves (figure at left and right sides of 500 bottom of oil filter In it is unmarked), offer four in 100 intracavity bottom of shell position corresponding with four the 5th thread grooves on 500 bottom of oil filter Oil filter is fixed on shell by the 5th thread groove, the 6th thread groove and fastening bolt by a 6th thread groove (unmarked in figure) The intracavity bottom of body 100, oil filter 500 were used for oil strain, and spray head 510 is located at 500 top of oil filter, and spray head 510 in umbrella Diameter is greater than 500 diameter of oil filter, and spray head 510 is for the hydraulic oil impurity for being deposited on 400 surface of oil filter to be rinsed；

Referring to Fig. 1, oil inlet pipe 600 is installed between hydraulic cylinder 300 and oil filter 500, specifically, oil inlet pipe 600 one end outer wall opens up external screw thread (unmarked in figure), and the oil inlet port inner sidewall of hydraulic cylinder 300 offers internal screw thread (figure In it is unmarked), oil inlet pipe 600, which is opened, to be threadedly coupled with the oil inlet port of hydraulic cylinder 300 by external screw thread, internal screw thread and sealing strip, The other end of oil inlet pipe 600 is bonded in the right side wall of oil filter 500, and oil inlet pipe 600 is for conveying hydraulic oil.

Referring to Fig. 1, blowdown valve 700 has regulation handle 710 and sewage draining exit 720, and blowdown valve 700 is fixedly mounted on On flowline 110, specifically, the connecting pin outer wall of flowline 110 opens up external screw thread, in the interconnecting piece of blowdown valve 700 opens up 700 knob of blowdown valve is fixed on flowline 110, blowdown valve by screw thread by the cooperation of external screw thread and internal screw thread and sealing strip 700 for adjusting the outflow flow of hydraulic oil impurity, specifically, those skilled in the art turns clockwise before present apparatus running Dynamic regulation handle 710, is in a closed state blowdown valve 700, prevents the oil stream in the course of work in shell 100 from going out, when need When discharging hydraulic oil impurity, those skilled in the art rotates counterclockwise regulation handle 710, and blowdown valve 700 is made to be in connected state State, and then flow out hydraulic oil impurity from sewage draining exit 720.

Working principle: the utility model is in use, starting hydraulic cylinder 300, in 350 jacking hydraulic cylinder of plunger, 300 cylinder body, liquid Cylinder pressure 300 is conveyed in hydraulic oil to hydraulic cylinder 300 outward by going out liquid check valve 380, when plunger 350 is due to 360 elastic force of spring When reset, then hydraulic cylinder 300 passes through overflow in the process by the hydraulic oil in the absorption shell 100 of feed liquor check valve 370 Valve 400 flows to the hydraulic oil of shell 100, sprays to oil filter 400 by spray head 510, makes to be deposited on the hydraulic of 400 surface of oil filter Oily impurity is rinsed, and hydraulic cylinder 300 is at work, is also had continuous hydraulic oil and is flowed to spray head 510, keeps hydraulic oil miscellaneous Matter is difficult to be deposited on 400 surface of oil filter, to reduce the case where 400 filter opening of oil filter is blocked by hydraulic oil impurity, prolongs The surface area of long 400 service life of oil filter, and the spray head 510 of umbrella, the oil filter 400 of the hydraulic oil contact of ejection is larger, Effect is preferable, simultaneously as hydraulic oil impurity has certain weight, is easy to be deposited on 100 intracavity bottom of shell, shell 100 The setting of right side wall blowdown valve 700, regular discharge, it is possible to reduce impurity is by the generation of 400 stopping state of oil filter.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of oil-inlet mechanism of Hydraulic Power Transmission System, it is characterised in that: including shell (100), end cap (200), hydraulic cylinder (300), the top of overflow valve (400), oil filter (500), oil inlet pipe (600) and blowdown valve (700), the shell (100) can Disassembly is fixedly installed with end cap (200) and forms an airtight chamber, and shell (100) intracavity bottom is detachably fixed installation institute It states oil filter (500), the oil filter (500) is connected by the oil inlet of the oil inlet pipe (600) and the hydraulic cylinder (300) It connects, the oil outlet of the hydraulic cylinder (300) is connect by the first pipeline (320) with external structure, at the top of the oil filter (500) Equipped with spray head (510), the end of the spray head (510) is connected to by the second pipeline (330) with the overflow valve (400), described Overflow valve (400) is connected to by third pipeline (340) with first pipeline (320), and shell (100) right side wall is equipped with Oil pipe (110) is equipped with blowdown valve (700) on flowline (110).

2. a kind of oil-inlet mechanism of Hydraulic Power Transmission System according to claim 1, it is characterised in that: the spray head (510) For umbrella, inside is hollow cavity, and top surface is equipped with the interface with the second pipeline (330), and bottom surface is evenly distributed with one group of spray orifice, spray head (510) it is located at right above oil filter (500).

3. a kind of oil-inlet mechanism of Hydraulic Power Transmission System according to claim 1, it is characterised in that: the shell (100) It is connect with end cap (200) by fastening bolt, and forms an airtight chamber.

4. a kind of oil-inlet mechanism of Hydraulic Power Transmission System according to claim 1, it is characterised in that: first pipeline (320) end is equipped with throttle valve (321), and first pipeline (320) can connect with external agency.

5. a kind of oil-inlet mechanism of Hydraulic Power Transmission System according to claim 1, it is characterised in that: first pipeline (320), the both ends of the second pipeline (330) and third pipeline (340) are equipped with threaded hole.