CN109441901A - Servo power device for garbage-compressing - Google Patents
Servo power device for garbage-compressing Download PDFInfo
- Publication number
- CN109441901A CN109441901A CN201811564225.4A CN201811564225A CN109441901A CN 109441901 A CN109441901 A CN 109441901A CN 201811564225 A CN201811564225 A CN 201811564225A CN 109441901 A CN109441901 A CN 109441901A
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- China
- Prior art keywords
- oil
- valve
- fluid port
- hydraulic fluid
- solenoid valve
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention provides a kind of servo power devices for garbage-compressing, including fuel tank assembly, hydraulic valve bank assembly and power assembly, wherein fuel tank assembly includes check valve, fuel tank and servo oil pump, hydraulic valve bank assembly includes the first two-position four-way solenoid valve, second two-position four-way solenoid valve and three position four-way electromagnetic valve, check valve is connected to the P hydraulic fluid port of the first two-position four-way solenoid valve, the P hydraulic fluid port of second two-position four-way solenoid valve and the P hydraulic fluid port of three position four-way electromagnetic valve, the T hydraulic fluid port of first two-position four-way solenoid valve, the T hydraulic fluid port of second two-position four-way solenoid valve and the T hydraulic fluid port of three position four-way electromagnetic valve are connected to fuel tank, two-position two-way solenoid valve is equipped between oil inlet pipe and fuel tank, power assembly includes the push top oil cylinder for being connected to the B hydraulic fluid port of the second two-position four-way solenoid valve and the dump ram for being connected to three position four-way electromagnetic valve A hydraulic fluid port.Using the servo power device in the present invention, the speed of push top oil cylinder and dump ram can be adjusted by the revolving speed and torque of change servo motor.
Description
Technical field
The present invention relates to garbage-compressing field more particularly to a kind of servo power devices for garbage-compressing.
Background technique
Currently, conventional products in environmental sanitation, are all made of standard Three-phase Induction Motor Control oil pump combination solenoid directional control valve
Realize the various actions of push top oil cylinder and dump ram, the revolving speed of this control mode motor is that standard is constant, is maintained at
1450r/min or so, the discharge capacity of oil pump is also standard discharge capacity, under the control of this situation, in the advance of push top oil cylinder and fallback procedures not
How, whether tube apparatus operating condition has rubbish, is held in same speed and pressure, can not be continuously electrodeless according to practical rubbish situation
Adjusting whole system pressure and flow, cause very big system throttles and overflow to be lost, then cause the temperature rise of system compared with
Fastly, noise is larger, and energy consumption is very high；In traditional control method, when oil cylinder of having a haircut suppresses rubbish to front end, it is
Guarantee that the useful load of cabinet and the compactness of rubbish, normal pressure are set in 22-24Mpa or so, 5.5KW motor is generally deposited at this time
In overload phenomenon, NOL normal overload will be more than 50%, the stability of extreme influence system and the service life of motor, while also substantially
Increase energy consumption；Have a haircut oil cylinder forward with backward act (flexible) switching when, by solenoid valve commutation realization, at this time solenoid valve height
Pressure, big flow commutation, are substantially at electromagnetic valve work limit load, simultaneity factor reversing impact is very big, high noise；In tipping bucket oil
When cylinder operation, traditional control method is to be throttled by throttle valve to flow system flow to control tipping bucket or more the speed of service, will
Nearly 1/3 flow system flow power, which is throttled, to be lost, and there is throttling noise, and simultaneity factor back pressure is got higher, and also results in system temperature
It rises quickly.
Summary of the invention
In view of the foregoing, the present invention provides a kind of servo power device for garbage-compressing, pass through servo motor
Change the oil outlet of servo oil pump goes out oil stream amount, to change the stretching speed of push top oil cylinder and dump ram, reduces flexible change
To when impact.
To achieve the above object, the invention discloses a kind of servo power devices for garbage-compressing, comprising:
Fuel tank assembly, including check valve, for liquid carrying pressure oil fuel tank and be respectively communicated in the servo of the fuel tank
Oil pump, the first main oil return pipe, the second main oil return pipe and branch's oil return pipe, the servo oil pump is driven by servo motor, described
First main oil return pipe is equipped with branch's oil return pipe, the inlet communication of the check valve in the oil outlet of the servo oil pump,
Branch's oil return pipe is equipped with oil-return safety valve；
Hydraulic valve bank assembly, including the first two-position four-way solenoid valve, the second two-position four-way solenoid valve and 3-position 4-way electromagnetism
The outlet of valve, the check valve is respectively communicated with the P hydraulic fluid port in first two-position four-way solenoid valve, described second by oil inlet pipe
The P hydraulic fluid port of two-position four-way solenoid valve and the P hydraulic fluid port of the three position four-way electromagnetic valve, the T oil of first two-position four-way solenoid valve
Mouthful, the T hydraulic fluid port of second two-position four-way solenoid valve fuel tank is connected to by the first main oil return pipe, the 3-position 4-way is electric
The T hydraulic fluid port of magnet valve is connected to the fuel tank by the second main oil return pipe, and the oil inlet pipe is connected to branch's oil return pipe, described
Two-position two-way solenoid valve is communicated between oil inlet pipe and the first main oil return pipe；And
The oil inlet of power assembly, including push top oil cylinder and dump ram, the push top oil cylinder is connected to the described 1st
The oil outlet of the A hydraulic fluid port of position four-way solenoid valve, the push top oil cylinder is connected to the B hydraulic fluid port of second two-position four-way solenoid valve,
The oil inlet of the dump ram is connected to the three position four-way electromagnetic valve A hydraulic fluid port, and the oil outlet of the dump ram is connected to
The B hydraulic fluid port of the three position four-way electromagnetic valve.
The beneficial effects of the present invention are:
(1) electric, realization servo power device No Load Start is obtained by two-position two-way solenoid valve, avoids causing because band carries starting
Servo oil pump damage, extends the service life of servo oil pump, while noise when No Load Start is smaller.
(2) the servo motor high speed low torque mode under the few light condition of empty van or rubbish, the high rotation speed operation of motor are watched
It takes oil pump capacity to double, push top oil cylinder advances at utmost speed.
(3) when push top oil cylinder is elongated to front end, servo motor is switched into low speed and large torque mode, motor low speed fortune
Turn, guarantee the pressure of servo power apparatus system entirety, then guarantees garbage truck density.
The present invention for garbage-compressing servo power device further improvement lies in that, the oil inlet pipe and described first
Overflow valve is installed between main oil return pipe.
The present invention for garbage-compressing servo power device further improvement lies in that, the three position four-way electromagnetic valve and
Hydraulic lock is equipped between the dump ram.
The present invention for garbage-compressing servo power device further improvement lies in that, the oil inlet of the servo oil pump
Equipped with first filter.By first filter to sucking servo oil pump in hydraulic oil be filtered, avoid solid impurity into
Enter in servo oil pump, extends the service life of servo power device.
The present invention for garbage-compressing servo power device further improvement lies in that, set on the first main oil return pipe
There are the second filter and cooler.The hydraulic oil in the first main oil return pipe is filtered by the second filter, passes through cooling
Device cools down hydraulic oil.
Detailed description of the invention
Fig. 1 is hydraulic schematic diagram of the present invention for the servo power device of garbage-compressing.
Specific embodiment
For the benefit of to understanding of the invention, it is illustrated with reference to the accompanying drawings and embodiments.
Refering to fig. 1 it is found that the invention discloses a kind of servo power device for garbage-compressing, including fuel tank assembly 1,
Hydraulic valve bank assembly 2 and power assembly；Wherein, fuel tank assembly 1 include check valve 17, for liquid carrying pressure oil fuel tank 11 and
It is respectively communicated with the servo oil pump 12 in fuel tank 11, the first main oil return pipe 32, branch's oil return pipe 33 and the second main oil return pipe 34, servo
Oil pump 12 is driven by servo motor, and the first main oil return pipe 32 is equipped with branch's oil return pipe 33, the inlet communication of check valve 17 in
The oil outlet of servo oil pump 12, branch's oil return pipe 33 are equipped with oil-return safety valve 16, and hydraulic valve bank assembly 2 includes the one or two four
The outlet of three-way electromagnetic valve 21, the second two-position four-way solenoid valve 22 and three position four-way electromagnetic valve 23, check valve 17 passes through oil inlet pipe 31
It is respectively communicated with the P hydraulic fluid port in the first two-position four-way solenoid valve 21, the P hydraulic fluid port of the second two-position four-way solenoid valve 22 and 3-position 4-way electricity
The P hydraulic fluid port of magnet valve 23, the T hydraulic fluid port of the first two-position four-way solenoid valve 21, the second two-position four-way solenoid valve 22 T hydraulic fluid port pass through first
Main oil return pipe 32 is connected to fuel tank 11, and the T hydraulic fluid port of three position four-way electromagnetic valve 23 is connected to fuel tank 11 by the second main oil return pipe 34,
Oil inlet pipe 31 is connected to branch's oil return pipe 33, is communicated with two-position two-way solenoid valve between oil inlet pipe 31 and the first main oil return pipe 32
25, power assembly includes push top oil cylinder 4 and dump ram 5, and the oil inlet of push top oil cylinder 4 is connected to the first two-position four-way solenoid valve
The oil outlet of 21 A hydraulic fluid port, push top oil cylinder 4 is connected to the B hydraulic fluid port of the second two-position four-way solenoid valve 22, the oil inlet of dump ram 5
Mouth is connected to three position four-way electromagnetic valve 23A hydraulic fluid port, and the oil outlet of dump ram 5 is connected to the B hydraulic fluid port of three position four-way electromagnetic valve 23.
In the present embodiment, (1) is electric by obtaining two-position two-way solenoid valve 25, passes through servo motor and servo oil pump 12 is driven to make
Industry realizes the No Load Start of servo power device, avoids being easy to cause servo oil pump 12 to damage with load starting in the prior art
Drawback, extends the service life of servo oil pump 12, while the noise generated when No Load Start is smaller, significantly reduces to surrounding
The influence of environment；(2) in the unloaded elongation process forward of push top oil cylinder 4, servo motor high speed is controlled by servo starter and is transported
Turn in 2000r/min or so, so that the flow enhancement of hydraulic oil is to 30L/min or so in servo power apparatus system, push top oil
4 rodless cavity of cylinder (oil inlet) oil inlet, push top oil cylinder 4 advances at utmost speed, and when encountering rubbish during advancing, system pressure is increased,
Reaching default value, is fed back according to pressure signal, servo motor is switched to rated speed, and keep push top 4 work of oil cylinder into state,
When pressure further rises to setting value, servo motor switches low speed heavy pressure state, realizes suppressing for push top oil cylinder 4, guarantees rubbish
The compactness of rubbish compression, and then guarantee the useful load of rubbish in cabinet；(3) push top oil cylinder semi-finals pressure terminates, and servo motor switches to
Slow-speed of revolution low pressure force mode, open two-position two-way solenoid valve 25 carry out off-load, then the first two-position four-way solenoid valve 21 it is electric into
The retrogressing of push top oil cylinder 4 is realized in row commutation, 4 rod chamber of oil cylinder (oil outlet) oil inlet of having a haircut at this time, by switching servo motor
For high velocity, low pressure mode, the high reverse of push top oil cylinder 4 is realized, when push top oil cylinder 4 is retreated to least significant end, open bi-bit bi-pass electricity
25 off-load of magnet valve, and make 22 power loss of the first two-position four-way solenoid valve 21 and the second two-position four-way solenoid valve；(4) on dump ram 5
During rising and declining, the coil for controlling 23 right end of three position four-way electromagnetic valve and left end respectively is powered, while according to the actual situation
Adjust the revolving speed of servo motor, real-time control tipping bucket raising and lowering speed, without being adjusted by conventional throttle valve, from root
The technical issues of preventing throttling loss on this；(5) push top oil cylinder 4 and dump ram 5 change being carried forward off-load, can keep away
Exempt from the impact and reduction noise when high pressure commutation；(6) by the way that branch's oil return pipe 33 is arranged and is arranged on branch's oil return pipe 33
Oil-return safety valve 16 can open oil-return safety valve 16 in main oil return blockage in time, be let out using branch's oil return pipe 33
Oil avoids main oil return pipe oil pressure excessively high and bursts.Specifically, referring to Fig. 1: (1) pouring into rubbish in tipping bucket, by making two
Position two-way electromagnetic valve 25 and 22 power loss of the second two-position four-way solenoid valve, make the first two-position four-way solenoid valve 21 and 3-position 4-way electromagnetism
23 right end electromagnetic coil of valve obtains electric, and the oil inlet oil inlet of dump ram 5, the oil outlet of dump ram 5 is fuel-displaced, so that dump ram
5 piston rod rises under the action of hydraulic oil, and then the rubbish in tipping bucket is poured into the cabinet for being used for compressed garbage；(2)
By making 22 power loss of two-position two-way solenoid valve 25 and the second two-position four-way solenoid valve, make the first two-position four-way solenoid valve 21 and three
23 left end electromagnetic coil of four way solenoid valve obtains electric, the oil outlet oil inlet of dump ram 5, and the oil inlet of dump ram 5 is fuel-displaced through
Two main oil return pipes 34 drain into fuel tank 11, so that the piston rod of dump ram 5 declines under the action of hydraulic oil；(3) by making
Two-position two-way solenoid valve 25, the first two-position four-way solenoid valve 21, the second two-position four-way solenoid valve 22 and three position four-way electromagnetic valve 23
In the case where equal power loss, hydraulic oil enters in the rodless cavity of push top oil cylinder 4 through the oil inlet of oil inlet pipe 31 and push top oil cylinder 4, pushes away
Oil outlet and first main oil return pipe 32 (or branch oil return pipe 33) of the hydraulic oil through oil cylinder 4 of having a haircut in 4 rod chamber of hair oil cylinder are arranged
Enter in fuel tank 11 so that push top 4 work of oil cylinder into, using push top oil cylinder 4 work into realize the rubbish in cabinet is compressed；
(4) by making 23 power loss of two-position two-way solenoid valve 25, the first two-position four-way solenoid valve 21 and three position four-way electromagnetic valve, make the two or two
Position four-way solenoid valve 22 must be electric, and the hydraulic oil of push top 4 oil outlet of oil cylinder outflow enters in oil inlet pipe 31, so that liquid in oil inlet pipe 31
The flow of pressure oil doubles, and then the flow for entering the oil inlet hydraulic oil of push top oil cylinder 4 increases, and realizes push top oil cylinder 4
The compression time of rubbish is shortened in F.F. with this；(5) power of servo motor is 5.5KW.
Further, overflow valve 26 is installed between oil inlet pipe 31 and the first main oil return pipe 32.In the present embodiment, having a haircut
In 5 course of work of oil cylinder 4 and dump ram, when the oil pressure in oil inlet pipe 31 is greater than the cracking pressure of overflow valve 26, overflow valve
26 open, and realization drains into hydraulic oil extra in oil inlet pipe 31 in fuel tank 11, to adjust the oil pressure in oil inlet pipe 31, avoid
Oil pressure is excessive and burst in oil inlet pipe 31, plays pressure limiting safety effect.Specifically, the cracking pressure of overflow valve 26 is 22MPa.
Further, hydraulic lock 24 is equipped between three position four-way electromagnetic valve 23 and dump ram 5.It is hydraulic in the present embodiment
Lock 24206 concrete functions and effect and in the prior art consistent.
Further, the oil inlet of servo oil pump 12 is equipped with first filter 13.In the present embodiment, by servo oil pump
12 oil inlet installs first filter 13, and servo oil pump 12 is avoided to suck large granular impurity, guarantees that servo oil pump 12 sucks liquid
The cleannes of pressure oil avoid causing failure because large granular impurity enters servo oil pump 12, reach protection servo oil pump 12, push away
The effect of each valve body in hair oil cylinder 4, dump ram 5 and hydraulic valve bank assembly 2.
Further, the first main oil return pipe 32 is equipped with the second filter 15 and cooler 14.In the present embodiment, (1) is logical
Cross and the effect of the second filter 15 is installed on the first oil return pipe is: by servo oil pump 12, push top oil cylinder 4, dump ram 5 and
In hydraulic valve bank assembly 2 impurity caused by each valve inner through the first oil return pipe be discharged when be filtered, avoid impurity into
Enter in fuel tank 11；(2) oil return (hydraulic oil) in first main oil return pipe 32 is cooled down by the realization of cooler 14, is had
Body, when oil return oil temperature reaches 38 DEG C, started by electrical control cooler 14, cooling down, control oil are carried out to oil return
Temperature continues to rise, and when returning-oil temperature is lower than 28 DEG C, is stopped working by electrical control cooler 14, guarantees power device operation
The Oil-temperature control of hydraulic oil is within the scope of reasonable interval in the process.
A kind of beneficial effect of the servo power device for garbage-compressing of the present invention includes:
1. servo power device can realize No Load Start, and noise when No Load Start is smaller.
2. dump ram and push top oil cylinder are in telescopic process, flow system flow power loss is smaller, in the oil temperature of hydraulic oil
It rises slower.
3. adjusting the oil of hydraulic oil in servo power device whole system by the revolving speed and torque that adjust servo motor
Pressure convenient for quickly adjusting the stretching speed of dump ram and oil cylinder of having a haircut, and is carried out in compacting process by push top oil cylinder rubbish,
Servo motor is switched into low speed heavy pressure state, realizes suppressing for push top oil cylinder, guarantees that rubbish has preferable compactness, Jin Erti
The useful load of rubbish in high cabinet.
The above is only presently preferred embodiments of the present invention, not do limitation in any form to the present invention, although this
Invention has been disclosed in a preferred embodiment above, and however, it is not intended to limit the invention, any person skilled in the art,
In the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to
With the equivalent embodiment of variation, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention to
Any simple modification, equivalent change and modification made by upper embodiment, all of which are still within the scope of the technical scheme of the invention.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach
In the range of capable of covering.
Claims (5)
1. a kind of servo power device for garbage-compressing characterized by comprising
Fuel tank assembly, including check valve, for liquid carrying pressure oil fuel tank and be respectively communicated with the servo oil pump in the fuel tank,
First main oil return pipe, the second main oil return pipe and branch's oil return pipe, the servo oil pump are driven by servo motor, and described first is main
Oil return pipe is equipped with branch's oil return pipe, and the inlet communication of the check valve is in the oil outlet of the servo oil pump, and described point
Branch oil return pipe is equipped with oil-return safety valve；
Hydraulic valve bank assembly, including the first two-position four-way solenoid valve, the second two-position four-way solenoid valve and three position four-way electromagnetic valve, institute
The outlet for stating check valve is respectively communicated with the P hydraulic fluid port in first two-position four-way solenoid valve, two or two described by oil inlet pipe
The P hydraulic fluid port of four way solenoid valve and the P hydraulic fluid port of the three position four-way electromagnetic valve, the T hydraulic fluid port of first two-position four-way solenoid valve, institute
The T hydraulic fluid port for stating the second two-position four-way solenoid valve is connected to the fuel tank, the three position four-way electromagnetic valve by the first main oil return pipe
T hydraulic fluid port the fuel tank is connected to by the second main oil return pipe, the oil inlet pipe is connected to branch's oil return pipe, the oil inlet
Two-position two-way solenoid valve is communicated between pipe and the first main oil return pipe；And
The oil inlet of power assembly, including push top oil cylinder and dump ram, the push top oil cylinder is connected to described one or two four
The oil outlet of the A hydraulic fluid port of three-way electromagnetic valve, the push top oil cylinder is connected to the B hydraulic fluid port of second two-position four-way solenoid valve, described
The oil inlet of dump ram is connected to the three position four-way electromagnetic valve A hydraulic fluid port, and the oil outlet of the dump ram is connected to described
The B hydraulic fluid port of three position four-way electromagnetic valve.
2. the servo power device according to claim 1 for garbage-compressing, it is characterised in that: the oil inlet pipe and institute
It states and overflow valve is installed between the first main oil return pipe.
3. the servo power device according to claim 1 for garbage-compressing, it is characterised in that: the 3-position 4-way electricity
Hydraulic lock is equipped between magnet valve and the dump ram.
4. the servo power device according to claim 1 for garbage-compressing, it is characterised in that: the servo oil pump
Oil inlet is equipped with first filter.
5. the servo power device according to claim 1 for garbage-compressing, it is characterised in that: the first main oil return
Pipe is equipped with the second filter and cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564225.4A CN109441901A (en) | 2018-12-20 | 2018-12-20 | Servo power device for garbage-compressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564225.4A CN109441901A (en) | 2018-12-20 | 2018-12-20 | Servo power device for garbage-compressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109441901A true CN109441901A (en) | 2019-03-08 |
Family
ID=65559787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564225.4A Pending CN109441901A (en) | 2018-12-20 | 2018-12-20 | Servo power device for garbage-compressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177995A (en) * | 2020-09-30 | 2021-01-05 | 福建龙马环卫装备股份有限公司 | Control method for direction buffering of integral box hopper oil cylinder |
-
2018
- 2018-12-20 CN CN201811564225.4A patent/CN109441901A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177995A (en) * | 2020-09-30 | 2021-01-05 | 福建龙马环卫装备股份有限公司 | Control method for direction buffering of integral box hopper oil cylinder |
| CN112177995B (en) * | 2020-09-30 | 2022-07-12 | 福龙马集团股份有限公司 | Control method for direction buffering of integral box hopper oil cylinder |
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Application publication date: 20190308 |