CN205605517U

CN205605517U - Hydraulic oil cylinder

Info

Publication number: CN205605517U
Application number: CN201620311690.7U
Authority: CN
Inventors: 刘湖南
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-14
Filing date: 2016-04-14
Publication date: 2016-09-28
Anticipated expiration: 2026-04-14

Abstract

The utility model provides a hydraulic oil cylinder mainly includes hydro -cylinder, prefill valve, piston, oil tank and hydraulic pump, hydro -cylinder one side is equipped with the prefill valve, be equipped with the inner chamber in the hydro -cylinder, the oil -out of inner chamber passes through prefill valve and oil tank intercommunication, is equipped with oil inlet and inner chamber intercommunication on the hydro -cylinder, is equipped with little drain tap and inner chamber intercommunication on the hydro -cylinder, and the hydro -cylinder top is equipped with the loop bar, inner chamber and loop bar butt joint, and the piston activity is in the loop bar and run through hydro -cylinder and inner chamber, the prefill valve is connected with the double pump through logical oil circuit through logical oil circuit and hydraulic pump connection, oil inlet, this system is controlled by logical oil circuit, and wherein, logical oil circuit comprises oil feed logic oil circuit and oil return logic oil circuit. The utility model discloses a driving system, control system, the three meat and potatoes of execution systems form, produce certain internal pressure's fluid oil with the oil pump, and the control through logical oil circuit conveys the hydro -cylinder, and the speed that rises can reach 3 meters / second, descends to the free fall motion, and its is fast, the energy consumption is low.

Description

A kind of hydraulic jack

Technical field

This utility model relates to the technical field of hydraulic jack system and equipment, refers in particular to a kind of hydraulic jack.

Background technology

The important auxiliary equipment of one that tipper is the quickly plasticizing of ore deposit soil is beaten in ore deposit soil plasticising, it is by traditional machine treadle-operated tilt hammer for hulling rice, develop into the upright beetle of band cylinder body, at present, the upright beetle of this band cylinder body mainly uses sprocket wheel, chain drive hammer handle, such as Application No. 201420345310.2, Authorization Notice No. are CN 203901516 U, authorized announcement date be 2014.10.29 Chinese utility model patent disclosed in pottery plasticising automatic turnover machine, this hoisting way is the slowest, and shakiness of rising and falling, loss is big.If but drive it device and change common hydraulic jack driving into, through test, although it rises and falls relatively stable, but promoting speed and still can not meet requirement, and the most important thing is, when piston rod declines, oil cylinder draining is the slowest, the power causing piston to fall is not enough, cause longevity of service, efficiency low, and china clay is beaten uneven, it is impossible to meet enterprise demand.

Summary of the invention

The purpose of this utility model is for the existing state of the art, it is provided that a kind of hydraulic jack, is controlled to realize piston rapid increase by logic oil circuit, and when declining, quick draining is the movement of falling object, and its speed is fast, energy consumption is low.

For reaching above-mentioned purpose, this utility model adopts the following technical scheme that

This utility model is a kind of hydraulic jack, mainly include oil cylinder, replenishing valve, piston, fuel tank and hydraulic pump, described oil cylinder side is provided with replenishing valve, described oil cylinder is provided with inner chamber, the oil-out of inner chamber is connected with fuel tank by replenishing valve, oil cylinder is provided with oil-in and inner space, oil cylinder is provided with little drain tap and inner space, oil cylinder is arranged over loop bar, inner chamber docks with loop bar, piston is active in loop bar and runs through oil cylinder and inner chamber, and described replenishing valve is connected with hydraulic pump by logic oil circuit, and oil-in is connected with duplex pump by logic oil circuit.

In such scheme, loop bar is connected with cylinder seal by upper press cover, is additionally provided with the lower cover being connected with cylinder seal and agreeing with piston below oil cylinder.

In such scheme, logic oil circuit is made up of fuel feeding logic oil circuit and oil return circuit.

Further, fuel feeding logic oil circuit includes duplex pump, first conductive magnetism check valve, precursor overflow valve, Logical Relief Valve, logic check valve, check valve, stop valve and Pressure gauge.

Further, Logical Relief Valve connects duplex pump and fuel tank, and Logical Relief Valve is controlled to open and close, carried out pressure regulation by precursor overflow valve by first conductive magnetism check valve.

Further, in duplex pump after a routing pressure table, stop valve detection, pressure regulation, then being connected with logic check valve, Logical Relief Valve respectively by check valve, another road is connected with logic check valve, Logical Relief Valve respectively, wherein, logic check valve is connected with the oil-in of oil cylinder.

In such scheme, oil return circuit includes hydraulic pump, unidirectional feather valve, cooler, choke valve, electromagnetism check valve, check valve, accumulator, electromagnetic valve, replenishing valve, stop valve and Pressure gauge.

Further, little drain tap is opened by electromagnetism check valve, and fraction oil is leaked into fuel tank, and replenishing valve is opened by accumulator, and electromagnetic valve is opened simultaneously, then the oil in inner chamber releases through replenishing valve and enters fuel tank through subcooler.

Further, hydraulic pump enters accumulator by unidirectional feather valve, and accumulator is connected with stop valve, Pressure gauge, and when accumulator is completely pressed, hydraulic pump is by commutating through unidirectional feather valve, and unnecessary is cooled down by cooled device and send into fuel tank.

Further, accumulator is also connected with choke valve, by oily cooled device being leaked into fuel tank after throttle valve adjustment pressure.

The beneficial effects of the utility model are:

1. system uses duplex pump fuel feeding, improves the oil mass of fuel feeding, accelerates the rate of climb, and the rate of climb is up to 3 meter per seconds；

2. the control of oil circuit uses logical valve, and negotiability is big, the pressure loss is little, and it is active in one's movements, respond fast, it is little to impact, can quick draining, formation movement of falling object when making decline；

3. piston rod and piston use integrated design, and drive end bearing bracket oil charging-discharging is integrated, and sealing gland is integrated, and the control of topping up and cooling are similarly Integral design, make system run smoothness, and speed is fast, energy consumption is low, stable.

Accompanying drawing illustrates:

Accompanying drawing 1 is structural representation of the present utility model；

Accompanying drawing 2 is the structural representation of middle oil cylinder of the present utility model；

3, accompanying drawing oil piping system figure of the present utility model.

Detailed description of the invention:

In order to make juror can the purpose of this utility model, feature and function be further understood that, hereby lift preferred embodiment and coordinate graphic detailed description as follows:

nullRefer to Fig. 1、Shown in Fig. 2，System is the structural representation of the preferred embodiment of this utility model，This utility model is a kind of hydraulic jack，Mainly include oil cylinder 1、Replenishing valve 2、Piston 3、Fuel tank 4 and hydraulic pump 5，Described oil cylinder 1 side is provided with replenishing valve 2，Described oil cylinder 1 is provided with inner chamber 11，The oil-out 111 of inner chamber 11 is connected with fuel tank 4 by replenishing valve 2，Oil cylinder 1 is provided with oil-in 110 and connects with inner chamber 11，Oil cylinder 1 is provided with little drain tap 311 and connects with inner chamber 11，Oil cylinder 1 is arranged over loop bar 30，Inner chamber 11 docks with loop bar 30，Piston 3 is active in loop bar 30 and runs through oil cylinder 1 and inner chamber 11，Wherein，Loop bar 30 is tightly connected with oil cylinder 1 by upper press cover 31，The lower cover 32 being tightly connected with oil cylinder 1 and agreeing with piston 3 it is additionally provided with below oil cylinder 1.Described replenishing valve 2 is connected with hydraulic pump 5 by logic oil circuit, and oil-in 110 is connected with duplex pump 6 by logic oil circuit.Wherein, logic oil circuit is made up of oil-feed logic oil circuit and oil return logic oil circuit.

In such scheme, as it is shown on figure 3, described fuel feeding logic oil circuit carries out fuel feeding to inner chamber 11, it includes duplex pump 6, first conductive magnetism check valve 61, precursor overflow valve 62, Logical Relief Valve 63, logic check valve 64, check valve 65, stop valve 66 and Pressure gauge 67.Wherein, Logical Relief Valve 63 connects duplex pump 6 and fuel tank 4, and Logical Relief Valve 63 is controlled to open and close, carried out pressure regulation by precursor overflow valve 62 by first conductive magnetism check valve 61, when system load oversteps the extreme limit, opens overflow by Logical Relief Valve 63, it is provided that overload protection；Duplex pump 6 by oil after fuel tank 4 extracts, it is divided into two-way, after one routing pressure table 67, stop valve 66 detect and regulate pressure, it is connected with logic check valve 64, Logical Relief Valve 63 respectively by check valve 65 again, another road is connected with logic check valve 64, Logical Relief Valve 63 respectively, wherein, logic check valve 64 is connected with the oil-in 110 of oil cylinder 1.

In such scheme, as shown in Figure 3, oil return circuit provides system oil-way cooling and oil return, and it includes hydraulic pump 5, unidirectional feather valve 51, cooler 52, choke valve 53, electromagnetism check valve 54, check valve 541, accumulator 55, electromagnetic valve 56, replenishing valve 2, stop valve 58 and Pressure gauge 59.Wherein, little drain tap 311 is opened by electromagnetism check valve 57, first fraction oil is leaked into fuel tank 4 when piston 3 declines, and replenishing valve 2 is by accumulator 55 fuel feeding, electromagnetic valve 56 is opened, then in inner chamber 11, substantial amounts of oil releases entrance fuel tank 4 through replenishing valve 2, reaches the purpose of quick draining；Before replenishing valve 2 is opened; hydraulic pump 5 extracts oil from fuel tank 4 and by unidirectional feather valve 54, oil is sent into accumulator 55; it is used for opening replenishing valve 2 by accumulator 55 pressure store oil; accumulator 55 is connected with stop valve 58, Pressure gauge 59; pressure detecting and pressure regulation can be carried out; and owing to hydraulic pump 5 does not quits work; when accumulator 55 is completely pressed; the unnecessary cooled device of oil 52 is cooled down and sends into fuel tank 4 by unidirectional feather valve 51 by hydraulic pump 5; on the one hand overload protection is carried out; on the other hand oil circuit is cooled down, reduce oil temperature；In this part, accumulator 55 is also connected with choke valve 53, before start or when keeping in repair, can first pass through choke valve 53 and regulate pressure, cooled for the oil in accumulator 55 device 52 is leaked into fuel tank 4.

Certainly, illustrated above be only this utility model better embodiment, not limit range of the present utility model with this, therefore, every make in this utility model principle equivalence change should be included in protection domain of the present utility model.

Claims

null1. a hydraulic jack，Mainly include oil cylinder (1)、Replenishing valve (2)、Piston (3)、Fuel tank (4) and hydraulic pump (5)，Described oil cylinder (1) side is provided with replenishing valve (2)，It is characterized in that: described oil cylinder (1) is provided with inner chamber (11)，The oil-out (111) of inner chamber (11) is connected with fuel tank (4) by replenishing valve (2)，Oil cylinder (1) is provided with oil-in (110) and connects with inner chamber (11)，Oil cylinder (1) is provided with little drain tap (311) and connects with inner chamber (11)，Oil cylinder (1) is arranged over loop bar (30)，Inner chamber (11) docks with loop bar (30)，Piston (3) is active in loop bar (30) and runs through oil cylinder (1) and inner chamber (11)，Described replenishing valve (2) is connected with hydraulic pump (5) by logic oil circuit，Oil-in (110) is connected with duplex pump (6) by logic oil circuit.
A kind of hydraulic jack the most according to claim 1, it is characterized in that: described loop bar (30) is tightly connected with oil cylinder (1) by upper press cover (31), be additionally provided with, in oil cylinder (1) lower section, the lower cover (32) being tightly connected with oil cylinder (1) and agreeing with piston (3).
A kind of hydraulic jack the most according to claim 1 and 2, it is characterised in that: described logic oil circuit is made up of fuel feeding logic oil circuit and oil return circuit.
A kind of hydraulic jack the most according to claim 3, it is characterised in that: described fuel feeding logic oil circuit includes duplex pump (6), first conductive magnetism check valve (61), precursor overflow valve (62), Logical Relief Valve (63), logic check valve (64), check valve (65), stop valve (66) and Pressure gauge (67).
A kind of hydraulic jack the most according to claim 4, it is characterized in that: described Logical Relief Valve (63) connects duplex pump (6) and fuel tank (4), Logical Relief Valve (63) is controlled to open and close, carried out pressure regulation by precursor overflow valve (62) by first conductive magnetism check valve (61).
A kind of hydraulic jack the most according to claim 5, it is characterized in that: in described duplex pump (6) after a routing pressure table (67), stop valve (66) detection, pressure regulation, it is connected with logic check valve (64), Logical Relief Valve (63) respectively by check valve (65) again, another road is connected with logic check valve (64), Logical Relief Valve (63) respectively, wherein, logic check valve (64) is connected with the oil-in (110) of oil cylinder (1).
A kind of hydraulic jack the most according to claim 3, it is characterised in that: described oil return circuit includes hydraulic pump (5), unidirectional feather valve (51), cooler (52), choke valve (53), electromagnetism check valve (54), check valve (541), accumulator (55), electromagnetic valve (56), replenishing valve (2), stop valve (58) and Pressure gauge (59).
A kind of hydraulic jack the most according to claim 7, it is characterized in that: described little drain tap (311) is opened by electromagnetism check valve (57), fraction oil is leaked into fuel tank (4), replenishing valve (2) is opened by accumulator (55), electromagnetic valve (56) is opened simultaneously, then the oil in inner chamber (11) releases through replenishing valve (2) and enters fuel tank (4) through subcooler (52).
A kind of hydraulic jack the most according to claim 8, it is characterized in that: described hydraulic pump (5) enters accumulator (55) by unidirectional feather valve (54), accumulator (55) is connected with stop valve (58), Pressure gauge (59), when accumulator (55) is completely pressed, hydraulic pump (5) is by commutating through unidirectional feather valve (51), and unnecessary is cooled down and send into fuel tank (4) by cooled device (52).
A kind of hydraulic jack the most according to claim 9, it is characterised in that: described accumulator (55) is also connected with choke valve (53), by oily cooled device (52) being leaked into fuel tank (4) after choke valve (53) regulation pressure.