CN207261333U - A kind of hydraulic system of oil cylinder boosting - Google Patents
A kind of hydraulic system of oil cylinder boosting Download PDFInfo
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- CN207261333U CN207261333U CN201721302025.2U CN201721302025U CN207261333U CN 207261333 U CN207261333 U CN 207261333U CN 201721302025 U CN201721302025 U CN 201721302025U CN 207261333 U CN207261333 U CN 207261333U
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- oil circuit
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Abstract
A kind of hydraulic system of oil cylinder boosting of the utility model belongs to the technical field of cylinder control system；Technical problem to be solved is：There is provided one kind can auxiliary threaded rod backhaul, overflow phenomenon occurs when avoiding storing, and expand the hydraulic system of the oil cylinder boosting of use scope；The technical solution used for：Including oil cylinder, hydraulic motor, screw rod and fuel tank, screw rod one end is connected by the transmission device of hydraulic motor with the piston of oil cylinder, the rod chamber of oil cylinder is connected with fuel tank fueller and tank drainback mouth by oil circuit forms oil supply loop, oil circuit between oil cylinder and fuel tank fueller is equipped with the first control valve, hydraulic motor is connected with fuel tank fueller and tank drainback mouth by oil circuit forms oil supply loop, the in-line of hydraulic motor is equipped with the second control valve, the oil return line of hydraulic motor is equipped with to share oil circuit and share oil circuit with rodless cavity oil circuit is equipped with least one second regulating valve, oil circuit between rod chamber and fuel tank fueller is equipped with oil return line in parallel.
Description
Technical field
A kind of hydraulic system of oil cylinder boosting of the utility model belongs to the technical field of cylinder control system.
Background technology
Common equipment in modern times all trades and professions during oil cylinder, it is necessary to which oil cylinder slowly promotes simultaneously especially in feeder apparatus
Rotary screw is realized and is slowly evenly fed.And present used cylinder control system, when doing storing action, cartridge front portion
Raw material is compressed, reverse lead-screw backhaul, the backhaul in storing, until storing release, when not having raw material in barrel
When, screw rod only turns not move back, it is seen then that the backhaul action of traditional oil cylinder screw rod in storing promotes spiral shell after being squeezed by raw material in barrel
Bar backhaul backward, material cylinder pressure is higher, and for being also easy to produce the phenomenon of overflow during vented injection machine, and if raw material is profit
During the higher material of slip, storing easily skids, and screw rod retracts slow, or even only turns not move back.
Utility model content
The utility model overcomes the shortcomings of the prior art, and technical problem to be solved is：There is provided one kind can aid in
Screw rod backhaul, avoids that overflow phenomenon occurs during storing, and expands the hydraulic system of the oil cylinder boosting of use scope.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of hydraulic pressure system of oil cylinder boosting
System, including oil cylinder, hydraulic motor and fuel tank, the piston both sides of the oil cylinder are divided into rod chamber and rodless cavity, and screw rod is arranged on nothing
Inside rod cavity and its one end is connected by the transmission device of hydraulic motor with the piston of oil cylinder, the oil cylinder control screw rod into
Move back and hydraulic motor control screw rod rotation；
The rod chamber of the oil cylinder is connected with fuel tank fueller and tank drainback mouth by oil circuit forms oil supply loop,
Oil circuit between rod chamber and the fuel tank fueller is equipped with the first control valve of control cylinder movement；
The hydraulic motor is connected with fuel tank fueller and tank drainback mouth by oil circuit forms oil supply loop, described
The in-line of hydraulic motor is equipped with the second control valve of control hydraulic motor movement；
The rodless cavity is connected with tank drainback mouth by rodless cavity oil circuit, the oil return line of the hydraulic motor and no bar
Chamber oil circuit, which is equipped with to share oil circuit and share oil circuit, is equipped with least one second regulating valve；
Oil circuit between the rod chamber and fuel tank fueller is equipped with oil return line in parallel, and the one of the parallel connection oil return line
End is connected on the oil circuit between the first control valve and rod chamber and its other end is connected with tank drainback mouth, described in parallel time
Oil circuit is connected with the second control valve and controls its break-make by the second control valve.
At least one first regulating valve is provided with the parallel connection oil return line.
First regulating valve is pressure regulator valve, or is throttle valve, or is proportioning valve.
Second regulating valve is flow control valve, or is pressure-regulating valve, or is damper bar.
Second regulating valve is to be arranged on the pipe fitting of hydraulic motor oil return line and rodless cavity oil circuit Rendezvous Point, the pipe
Connector is line size adjustable structure.
The utility model has the advantages that compared with prior art：Using a kind of new hydraulic system, by liquid
The oil return of pressure motor imports the rodless cavity boosting piston of oil cylinder, and the regulating valve on oil return line in parallel can make oil cylinder piston with a constant speed
Degree retreats, and keeps the pressure of screw rod front portion, ensures being smoothed out for storing, and avoids the phenomenon of overflow, and screw rod does not rely only on storage
The pressure of material retreats, the design of this structure can auxiliary threaded rod backhaul, avoid overflow phenomenon during storing, and expand oil cylinder and use model
Enclose, oil cylinder is can be applied to the raw feed materials that lubricity is high or friction coefficient is small.
Brief description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings；
Fig. 1 is system structure diagram provided by the utility model；
In figure：1 is oil cylinder, and 2 be rod chamber, and 3 be rodless cavity, and 4 be hydraulic motor, and 5 be the first control valve, and 6 be screw rod, 7
It is the first regulating valve for the second control valve, 8,9 be the second regulating valve, and 10 be oil return line in parallel, and 11 be tank drainback mouth, and 12 be oil
Case fueller.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the part of the embodiment of the utility model, instead of all the embodiments；Based on the reality in the utility model
Apply example, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all belong to
In the scope of the utility model protection.
As shown in Figure 1, a kind of hydraulic system of oil cylinder boosting of the utility model, including oil cylinder 1, hydraulic motor 4 and fuel tank,
The piston both sides of the oil cylinder 1 are divided into rod chamber 2 and rodless cavity 3, and screw rod 6 is arranged on the inside of rodless cavity 3 and its one end passes through liquid
The transmission device of pressure motor 4 is connected with the piston of oil cylinder 1, and the oil cylinder 1 controls the advance and retreat of screw rod 6 and hydraulic motor 4 controls
The rotation of screw rod 6；
The rod chamber 2 of the oil cylinder 1 is connected to form with fuel tank fueller 12 and tank drainback mouth 11 by oil circuit to be supplied
Oil return line, the oil circuit between the rod chamber 2 and fuel tank fueller 12 are equipped with the first control valve 5 that control cylinder 1 is moved；
The hydraulic motor 4 is connected with fuel tank fueller 12 and tank drainback mouth 11 by oil circuit forms fuel feeding time
Road, the in-line of the hydraulic motor 4 are equipped with the second control valve 7 that control hydraulic motor 4 moves；
The rodless cavity 3 is connected with tank drainback mouth 11 by rodless cavity oil circuit, the oil return line of the hydraulic motor 4 with
Rodless cavity oil circuit, which is equipped with to share oil circuit and share oil circuit, is equipped with least one second regulating valve 9, during 4 oil return of hydraulic motor, the
Two regulating valves 9 can limit the current of fluid by varying modes such as pressure, change passage sections products, by 4 oil return of hydraulic motor
At least a portion hydraulic oil is fed into 3 boosting piston of rodless cavity in road；
Oil circuit between the rod chamber 2 and fuel tank fueller 12 is equipped with oil return line 10 in parallel, the parallel connection oil return
The one end on road 10 is connected on the oil circuit between the first control valve 5 and rod chamber 2 and its other end and tank drainback mouth (11) phase
Connection, the parallel connection oil return line 10 are connected with the second control valve 7 and control its break-make by the second control valve 7.
At least one first regulating valve 8 is provided with the parallel connection oil return line 10, the fluid of hydraulic motor 4 enters rodless cavity
During 3 boosting piston, the back pressure of 8 regulating oil cylinder 1 of the first regulating valve, makes screw rod 6 maintain certain speed to retreat.
The first regulating valve 8 and the second regulating valve 9 in the utility model are provided with the work(of selective exclusion, release and current limliting
Energy.
The movement of control cylinder 1 and hydraulic motor 4 is distinguished in the utility model using two control valves, this is general hand
Section, can be also controlled using multiple control valves.
Preferably, second regulating valve 9 is flow control valve, and the fluid of hydraulic motor 4 is led to using flow control valve
Row flow is adjusted, so that the fluid of section hydraulic motor 4 enters rodless cavity 3.
Preferably, second regulating valve 9 is pressure-regulating valve, and the fluid of hydraulic motor 4 is led to using pressure-regulating valve
Row flow is adjusted, so that the fluid of section hydraulic motor 4 enters rodless cavity 3.
Preferably, second regulating valve 9 is damper bar, using damper bar to the fluid traffic flow of hydraulic motor 4 into
Row is adjusted, so that the fluid of hydraulic motor 4 enters rodless cavity 3.
Preferably, second regulating valve 9 is is arranged on 4 oil return line of hydraulic motor and the pipe of rodless cavity oil circuit Rendezvous Point connects
Head, the pipe fitting is line size adjustable structure, by the change to pipe fitting line size, with the oil to hydraulic motor 4
Liquid traffic flow is adjusted, so that the fluid of hydraulic motor 4 enters rodless cavity 3.
Preferably, first regulating valve 8 is pressure regulator valve, and the flow of 2 fluid of rod chamber is adjusted using pressure regulator valve,
Certain back pressure is maintained, makes screw rod while storing is ensured, with certain speed backhaul.
Preferably, first regulating valve 8 is throttle valve, and the flow of 2 fluid of rod chamber is adjusted using throttle valve,
Certain back pressure is maintained, makes screw rod while storing is ensured, with certain speed backhaul.
When hydraulic motor 4 drives the screw rod 6 to rotate, fluid in fuel tank fueller 12 is through 4 in-line of hydraulic motor through the
Two control valves 7 enter hydraulic motor 4, then return to tank drainback mouth 11,4 oil return line of hydraulic motor through 4 oil return line of hydraulic motor
The convergence of footpath and rodless cavity oil circuit shares an oil circuit, and during 4 oil return of hydraulic motor, the second regulating valve 9 can pass through pressure, change path
The modes such as sectional area limit the current of fluid, so that fluid enters rodless cavity 3 through rodless cavity oil circuit, promote piston motion, together
When, adjust the first regulating valve 8, piston is retreated with certain speed, keep the anterior pressure of screw rod 6, ensure storing it is smooth into
OK, the phenomenon of overflow when and avoiding storing, the pressure that screw rod 6 does not rely only on storing retreat, and the design of this structure can auxiliary threaded rod 6
Backhaul, avoids overflow phenomenon during storing, and expands injection molding machine use scope, injection molding machine is can be applied to the high friction system of lubricity
The injection of the small raw material of number.
It is described in detail in the present embodiment using single pole oil cylinder, but the utility model is not limited to single pole, it is also applicable
In double rod oil cylinder.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify the technical solution described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical solution of type.
Claims (5)
- A kind of 1. hydraulic system of oil cylinder boosting, it is characterised in that：Including oil cylinder (1), hydraulic motor (4), screw rod (6) and oil Case, the piston both sides of the oil cylinder (1) are divided into rod chamber (2) and rodless cavity (3), screw rod (6) be arranged on rodless cavity (3) it is internal and Its one end is connected by the transmission device of hydraulic motor (4) with the piston of oil cylinder (1), oil cylinder (1) the control screw rod (6) The rotation of advance and retreat and hydraulic motor (4) control screw rod (6)；The rod chamber (2) of the oil cylinder (1) and fuel tank fueller (12) and tank drainback mouth (11) are connected structure by oil circuit Into oil supply loop, oil circuit between the rod chamber (2) and fuel tank fueller (12) is equipped with the of control cylinder (1) movement One control valve (5)；The hydraulic motor (4) is connected with fuel tank fueller (12) and tank drainback mouth (11) by oil circuit forms fuel feeding time Road, the in-line of the hydraulic motor (4) are equipped with the second control valve (7) of control hydraulic motor (4) movement；The rodless cavity (3) is connected with tank drainback mouth (11) by rodless cavity oil circuit, the oil return line of the hydraulic motor (4) It is equipped with to share oil circuit and share oil circuit with rodless cavity oil circuit and is equipped with least one second regulating valve (9)；Oil circuit between the rod chamber (2) and fuel tank fueller (12) is equipped with oil return line in parallel (10), and the parallel connection is returned One end of oil circuit (10) is connected on the oil circuit between the first control valve (5) and rod chamber (2) and its other end and tank drainback Mouth (11) is connected, and the parallel connection oil return line (10) is connected with the second control valve (7) and controls it logical by the second control valve (7) It is disconnected.
- A kind of 2. hydraulic system of oil cylinder boosting according to claim 1, it is characterised in that：The parallel connection oil return line (10) On be provided with least one first regulating valve (8).
- A kind of 3. hydraulic system of oil cylinder boosting according to claim 2, it is characterised in that：First regulating valve (8) For pressure regulator valve, or it is throttle valve, or is proportioning valve.
- A kind of 4. hydraulic system of oil cylinder boosting according to claim 1, it is characterised in that：Second regulating valve (9) For flow control valve, or it is pressure-regulating valve, or is damper bar.
- A kind of 5. hydraulic system of oil cylinder boosting according to claim 1, it is characterised in that：Second regulating valve (9) To be arranged on the pipe fitting of hydraulic motor (4) oil return line and rodless cavity oil circuit Rendezvous Point, the pipe fitting is adjustable for line size Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721302025.2U CN207261333U (en) | 2017-10-11 | 2017-10-11 | A kind of hydraulic system of oil cylinder boosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721302025.2U CN207261333U (en) | 2017-10-11 | 2017-10-11 | A kind of hydraulic system of oil cylinder boosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261333U true CN207261333U (en) | 2018-04-20 |
Family
ID=61916750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721302025.2U Active CN207261333U (en) | 2017-10-11 | 2017-10-11 | A kind of hydraulic system of oil cylinder boosting |
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| CN (1) | CN207261333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228774A (en) * | 2019-05-08 | 2019-09-13 | 杭叉集团股份有限公司 | A kind of fork truck and forklift door frame hydraulic system for lifting |
-
2017
- 2017-10-11 CN CN201721302025.2U patent/CN207261333U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228774A (en) * | 2019-05-08 | 2019-09-13 | 杭叉集团股份有限公司 | A kind of fork truck and forklift door frame hydraulic system for lifting |
| CN110228774B (en) * | 2019-05-08 | 2024-04-09 | 杭叉集团股份有限公司 | Fork truck and fork truck portal hydraulic system that goes up and down |
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