CN109178798A - A kind of continuous tunnel furnace hydraulic pressure tension system - Google Patents
A kind of continuous tunnel furnace hydraulic pressure tension system Download PDFInfo
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- CN109178798A CN109178798A CN201811042746.3A CN201811042746A CN109178798A CN 109178798 A CN109178798 A CN 109178798A CN 201811042746 A CN201811042746 A CN 201811042746A CN 109178798 A CN109178798 A CN 109178798A
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- tunnel furnace
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- 230000001360 synchronised effect Effects 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 235000015173 baked goods and baking mixes Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/44—Belt or chain tensioning arrangements
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B1/00—Bakers' ovens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0202—Agricultural and processed food products
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a kind of continuous tunnel furnace hydraulic pressure tension systems, it includes hydraulic pump, overflow valve, reversal valve, hydraulic cylinder, the first relay and the second relay, wherein, hydraulic pump has the first entrance and first outlet being connected, and first entrance is connected to hydraulic power source；Overflow valve has second entrance, and second entrance is connected to first outlet；Reversal valve has third entrance, third outlet and the 4th outlet, and third outlet, the 4th outlet are connected to third entrance respectively, and third entrance is connected to first outlet；The piston rod of hydraulic cylinder has rod chamber and rodless cavity, rodless cavity and third outlet, rod chamber and the 4th outlet for connecting with idler roller；First relay is used to detect the pressure of hydraulic cylinder and the stopping for controlling hydraulic pump；Second relay, the starting for detecting the pressure of hydraulic cylinder and for controlling hydraulic pump.The continuous tunnel furnace hydraulic pressure tension system can be realized more stable tensioning and adjust, and keep the tensioning of idler roller more stable.
Description
Technical field
The present invention relates to field continuous tunnel furnace technical field more particularly to a kind of continuous tunnel furnace hydraulic pressure tension systems.
Background technique
Continuous tunnel furnace (food processing class) is that the tunnel type machinery for completing food-baking by the conduction of heat, convection current, radiation is set
It is standby.With driving form point, continuous tunnel furnace can be divided into for transmission chain type continuous tunnel furnace and conveyor type continuous tunnel furnace, referring to Fig. 1, show with
Continuous tunnel furnace net belt type transmission system for mesh belt, mesh belt belong to mesh grid formula conveyer belt, and form is exquisite, and specification is very various,
Continuous tunnel furnace net belt type transmission system includes furnace body 1, and furnace body has burner 11 and furnace tail 12, and burner 11 is equipped with driven voller 2 and entangles
Inclined roller 3, and furnace tail 12 is equipped with drive roll 5 and idler roller 6, mesh belt 4 is set around drive roll 5, idler roller 6, driven voller 2 and correction
The excircle wall surface of roller 3.
Effective mesh belt tensioning can guarantee the power of mesh belt transmission, while during continuous tunnel furnace baked goods, mesh belt by
Thermal stretching guarantees that tensile force is constant in mesh belt operational process using the position of clamping system automatic adjustment idler roller.Therefore, it is
The stable drive for guaranteeing mesh belt, is in the prior art generally automatically adjusted using spring tensioning system and pneumatic clamping system
The position of tight roller.
But it is had the following deficiencies: using spring tensioning system and pneumatic clamping system
1, temperature change can be directly changed the pressure of spring tensioning system or pneumatic clamping system, and then lead to mesh belt
Tensioning state is unstable；
2, when the pressure of pneumatic clamping system changes, the gas discharge sound of high frequency is had, causes noise big；
3, the structure of spring tensioning system and pneumatic clamping system is larger, and continuous tunnel furnace is caused to cannot achieve Miniaturization Design；
4, the energy loss of pneumatic clamping system is big, and bearing capacity is small.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of continuous tunnel furnace hydraulic pressure tension system, energy
Enough realize that more stable tensioning is adjusted.
The purpose of the present invention adopts the following technical scheme that realization:
A kind of continuous tunnel furnace hydraulic pressure tension system, comprising:
Hydraulic pump, has the first entrance and first outlet being connected, and first entrance is connected to hydraulic power source；
Overflow valve, has second entrance, and second entrance is connected to first outlet；
Reversal valve, have third entrance, third outlet and the 4th outlet, third outlet, the 4th outlet respectively with third
Entrance connection, third entrance are connected to first outlet；
Hydraulic cylinder, the piston rod of hydraulic cylinder have rod chamber and rodless cavity, rodless cavity and third for connecting with idler roller
Outlet, rod chamber and the 4th outlet；
First relay, the stopping for detecting the pressure of hydraulic cylinder and for controlling hydraulic pump；
Second relay, the starting for detecting the pressure of hydraulic cylinder and for controlling hydraulic pump.
Further, there are two the hydraulic cylinder settings, the piston rod of two hydraulic cylinders is respectively used to two with idler roller
End connection.
It further, further include synchronous valve, synchronous valve goes out equipped with the 4th entrance, the 5th entrance, the 5th outlet and the 6th
Mouth, the 4th entrance and the 5th outlet, the 5th entrance and the 6th outlet, the 4th entrance and third outlet, the 5th
Outlet is connected to rodless cavity, the 5th entrance and the 4th outlet, and the 6th outlet is connected to rod chamber.
Further, the first entrance is equipped with inlet duct, and one end of inlet duct is connected to hydraulic power source, the other end and
First entrance connection, inlet duct are equipped with filter.
It further, further include for providing the fuel tank of hydraulic power source, inlet duct is suitable for putting in fuel tank.
It further, further include first pressure gauge for showing the outlet pressure of hydraulic pump, first pressure gauge is set to liquid
On the outlet conduit of press pump.
Further, further include second pressure gauge for showing the inlet pressure of hydraulic cylinder.
Compared with prior art, the beneficial effects of the present invention are: by hydraulic pump make hydraulic power source circulate, make system pressure
Power increases, and the pressure of hydraulic power source is adjusted by overflow valve, and guaranteeing, which makes the pressure of hydraulic power source reach idler roller, is in tensioning state
The pressure of Shi Suoxu is without exceeding required pressure value, when the pressure of the first relay test to hydraulic cylinder reaches at idler roller
Required pressure when tensioning state, the first relay issue signal, and hydraulic pump stops, and system is in state of pressure keeping, and works as tunnel
When road furnace heats up, mesh belt is extended because of thermal expansion, and the pressure of hydraulic cylinder drops to when starting the second relay, the second relay
Signal is sent, hydraulic pump startup makes system pressure be increased to the pressure for keeping idler roller required when being in tensioning state, past in this way
It is multiple, it maintain the pressure of system can in certain pressure limit always, realize the adjusting of idler roller, guarantee the tensioning shape of mesh belt
State keeps the tensioning of mesh belt more stable；And when need to discharge idler roller, hydraulic cylinder can be made anti-by the movement of adjustable change valve
To movement.With the prior art used in compared with spring tensioning system and pneumatic clamping system, there is pressure to stablize, noise
Small, light-weight, small in size while big bearing capacity advantage, and then can guarantee the tensioning state of idler roller, make of idler roller
It is tight more stable.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of continuous tunnel furnace net belt type transmission system of the prior art；
Fig. 2 is a kind of schematic diagram of continuous tunnel furnace hydraulic pressure tension system of the embodiment of the present invention.
In figure: 10, hydraulic pump；11, first entrance；12, first outlet；20, overflow valve；21, second entrance；22, second
Outlet；30, reversal valve；31, third entrance；32, third exports；33, the 4th outlet；40, synchronous valve；41, the 4th entrance；42,
5th entrance；43, the 5th outlet；44, the 6th outlet；50, hydraulic cylinder；51, rodless cavity；52, rod chamber；60, idler roller；70,
First relay；80, the second relay；90, first pressure gauge；100, second pressure gauge；200, fuel tank；300, filter；
400, the first check valve；500, second one-way valve.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Referring to fig. 2, a kind of continuous tunnel furnace hydraulic pressure tension system of the embodiment of the present invention is shown comprising hydraulic pump 10 overflows
Flow valve 20, reversal valve 30, hydraulic cylinder 50, the first relay 70 and the second relay 80, wherein hydraulic pump 10, which has, to be connected
First entrance 11 and first outlet 12, first entrance 11 is connected to hydraulic power source (hydraulic power source is hydraulic oil)；Overflow valve 20 has
The second entrance 21 and second outlet 22 being connected, second outlet 22 are connected to the oil groove or fuel tank 200 for installing overflowing liquid, the
Two entrances 21 are connected to first outlet 12；Reversal valve 30 has third entrance 31, third outlet 32 and the 4th outlet 33, third
The 32, the 4th outlet 33 of outlet is connected to third entrance 31 respectively, and third entrance 31 is connected to first outlet 12；The work of hydraulic cylinder 50
Stopper rod has rod chamber 52 and rodless cavity 51, rodless cavity 51 is connected to third outlet 32, rod chamber for connecting with idler roller 60
52 are connected to the 4th outlet 33；First relay 70 is used to detect the pressure of hydraulic cylinder 50 and for controlling stopping for hydraulic pump 10
Only；Second relay 80, the starting for detecting the pressure of hydraulic cylinder 50 and for controlling hydraulic pump 10.
The continuous tunnel furnace hydraulic pressure tension system of the embodiment of the present invention makes hydraulic power source circulate, makes system by hydraulic pump 10
Pressure rise, and by overflow valve 20 adjust hydraulic power source pressure, guarantee make the pressure of hydraulic power source reach idler roller 60 be in
Required pressure is without exceeding required pressure value when tight state, when the first relay 70 detects that the pressure of hydraulic cylinder 50 reaches
Required pressure when being in tensioning state to idler roller 60, the first relay 70 issue signal, and hydraulic pump 10 stops, and system is in
State of pressure keeping, and when continuous tunnel furnace heating, mesh belt is extended because of thermal expansion, and the pressure of hydraulic cylinder 50, which drops to, makes the second relay
When 80 starting, the second relay 80 sends signal, and hydraulic pump 10 starts, and system pressure is made to be increased to that idler roller 60 is made to be in tensioning
Required pressure, reciprocal in this way when state, maintain the pressure of system can in certain pressure limit always, realizes idler roller
60 adjusting guarantees the tensioning state of mesh belt, keeps the tensioning of mesh belt more stable；And when need to discharge idler roller 60, pass through tune
The movement of section reversal valve 30 can make 50 counteragent of hydraulic cylinder.With spring tensioning system used in the prior art and pneumatic
Clamping system compares, and there is pressure to stablize, noise is small, light-weight, small in size while big bearing capacity advantage, and then can guarantee
The tensioning state of idler roller 60 keeps the tensioning of idler roller 60 more stable.
Preferably, there are two the settings of hydraulic cylinder 50, the piston rod of two hydraulic cylinders 50 is respectively used to two with idler roller 60
End connection, so that the tensioning of idler roller 60 is more steady.
Preferably, this continuous tunnel furnace hydraulic pressure tension system further includes synchronous valve 40, and synchronous valve 40 is equipped with the 4th entrance the 41, the 5th
The outlet of entrance the 42, the 5th 43 and the 6th outlet 44, the 4th entrance 41 are connected to the 5th outlet 43, and the 5th entrance 42 goes out with the 6th
Mouth 44 is connected to, and the 4th entrance 41 is connected to third outlet 32, and the 5th outlet 43 is connected to rodless cavity 51, the 5th entrance 42 and the 4th
33 connection of outlet, the 6th outlet 44 are connected to rod chamber 52, are driven with realizing to two the synchronous of hydraulic cylinder 50.
Specifically, first entrance 11 is equipped with inlet duct, and one end of inlet duct is connected to hydraulic power source, the other end and first
Entrance 11 is connected to, and inlet duct is equipped with filter 300, and the impurity that can be filled into hydraulic power source avoids blocking pipeline, makes hydraulic
The more smooth effect of the flowing in source is more preferable.
This continuous tunnel furnace hydraulic pressure tension system further includes for providing the fuel tank 200 of hydraulic power source, and inlet duct is suitable for putting in oil
In case 200.
This continuous tunnel furnace hydraulic pressure tension system further includes the first pressure gauge 90 for showing the outlet pressure of hydraulic pump 10, the
One pressure gauge 90 is set on the outlet conduit of hydraulic pump 10.Hydraulic pump 10 can be better seen by first pressure gauge 90
Outlet pressure avoids damaging each component because pressure is excessive convenient for adjusting the pressure of hydraulic power source in time, and because pressure mistake
Auto-tensioning that is small and leading to not realization idler roller 60 is adjusted.
This continuous tunnel furnace hydraulic pressure tension system further includes the second pressure gauge 100 for showing the inlet pressure of hydraulic cylinder 50,
Referring to fig. 2, second pressure gauge 100 is preferably disposed on the inlet duct of hydraulic cylinder 50, convenient for observing the entrance pressure of hydraulic cylinder 50
Power avoids damaging hydraulic cylinder 50 because pressure is excessive convenient for adjusting the pressure of hydraulic power source in time, and because pressure is too small and
Lead to not realize that the auto-tensioning of idler roller 60 is adjusted.
Referring to fig. 2, to avoid hydraulic power source from flowing back, equipped with the first check valve 400 on the outlet conduit of hydraulic pump 10, and
The inlet duct of overflow valve 20 is equipped with second one-way valve 500.
Specifically, the first relay 70 of the continuous tunnel furnace hydraulic pressure tension system of the embodiment of the present invention, the second relay 80 are equal
For pressure switch, the first relay 70, the second relay 80, overflow valve 20, reversal valve 30 and synchronous valve 40 pass through respectively
I/O port and programmable controller communication connection, and hydraulic pump 10 is connect also by I/O port with editable controller communication, first after
When electric appliance 70 or the second relay 80 start, send a signal to programmable controller, programmable controller send stop or
It is starting information to hydraulic pump 10, so that hydraulic pump 10 is stopped or is started, to realize the automatic adjustment to idler roller 60.
Specifically, to set tensioning pressure value as 8MPa, falling pressure value further illustrates this tunnel for being 6MPa
The working principle of furnace hydraulic pressure tension system:
Booting, first starting hydraulic pump 10 increase hydraulic system pressure, set hydraulic system tensioning pressure value as 8MPa, together
When 2 hydraulic cylinders 50 synchronous stretch out of piston rod push idler roller 60 to be tensioned mesh belt, pressure enters system state of pressure keeping after reaching.
Since continuous tunnel furnace is in temperature-rise period, because heat expansion causes mesh belt to extend, therefore cause hydraulic system pressure can be gradually
Dropping to 6MPa, the second relay 80 starts at this time, and hydraulic pump 10 starts, until when hydraulic system pressure is increased to 8MPa, the
The starting of one relay 70, hydraulic pump 10 stop, and system enters state of pressure keeping.It is reciprocal in this way, hydraulic system can be made to maintain always
In certain 6-8MPa pressure limit, guarantee the tensioning state of mesh belt, so that the tensioning of mesh belt is more stable.Similarly tensioning is released
Reversal valve 30 acts when putting, 50 counteragent of hydraulic cylinder.
It should be noted that pressure value 6MPa, 8MPa that the embodiment of the present invention uses can be adjusted according to the tensile force that design scene needs
Whole, tensile force is excessive to will lead to mesh belt abrasion quickening, and drive mechanism stability is caused to decline.Be tensioned it is too small, mesh belt will appear beat
It is sliding, influence transmission accuracy.So it is also of equal importance in the debugging process of hydraulic pressure tension system that reasonable tensioning pressure, which is arranged,.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (7)
1. a kind of continuous tunnel furnace hydraulic pressure tension system characterized by comprising
Hydraulic pump, has the first entrance and first outlet being connected, and first entrance is connected to hydraulic power source；
Overflow valve, has second entrance, and second entrance is connected to first outlet；
Reversal valve, have third entrance, third outlet and the 4th outlet, third outlet, the 4th outlet respectively with third entrance
Connection, third entrance are connected to first outlet；
Hydraulic cylinder, the piston rod of hydraulic cylinder have rod chamber and rodless cavity, rodless cavity and third export for connecting with idler roller
Connection, rod chamber and the 4th outlet；
First relay, the stopping for detecting the pressure of hydraulic cylinder and for controlling hydraulic pump；
Second relay, the starting for detecting the pressure of hydraulic cylinder and for controlling hydraulic pump.
2. continuous tunnel furnace hydraulic pressure tension system as described in claim 1, which is characterized in that there are two the hydraulic cylinder settings, and two
The piston rod of a hydraulic cylinder is respectively used to connect with the both ends of idler roller.
3. continuous tunnel furnace hydraulic pressure tension system as claimed in claim 2, which is characterized in that further include synchronous valve, synchronous valve is equipped with
4th entrance, the 5th entrance, the 5th outlet and the 6th outlet, the 4th entrance and the 5th outlet, the 5th entrance and the 6th
Outlet, the 4th entrance and third outlet, the 5th outlet are connected to rodless cavity, the 5th entrance and the 4th outlet,
6th outlet is connected to rod chamber.
4. continuous tunnel furnace hydraulic pressure tension system as claimed in any one of claims 1-3, which is characterized in that the first entrance is set
There is inlet duct, one end of inlet duct is connected to hydraulic power source, and the other end is connected to first entrance, and inlet duct is equipped with filtering
Device.
5. continuous tunnel furnace hydraulic pressure tension system as claimed in claim 4 further includes for providing the fuel tank of hydraulic power source, inlet duct
Suitable for putting in fuel tank.
6. continuous tunnel furnace hydraulic pressure tension system as claimed in any one of claims 1-3 further includes for showing going out for hydraulic pump
The first pressure gauge of mouth pressure, first pressure gauge are set on the outlet conduit of hydraulic pump.
7. continuous tunnel furnace hydraulic pressure tension system as claimed in any one of claims 1-3 further includes for showing entering for hydraulic cylinder
The second pressure gauge of mouth pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042746.3A CN109178798A (en) | 2018-09-07 | 2018-09-07 | A kind of continuous tunnel furnace hydraulic pressure tension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042746.3A CN109178798A (en) | 2018-09-07 | 2018-09-07 | A kind of continuous tunnel furnace hydraulic pressure tension system |
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| Publication Number | Publication Date |
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| CN109178798A true CN109178798A (en) | 2019-01-11 |
Family
ID=64915288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811042746.3A Pending CN109178798A (en) | 2018-09-07 | 2018-09-07 | A kind of continuous tunnel furnace hydraulic pressure tension system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767545A (en) * | 2012-08-07 | 2012-11-07 | 安奥克斯汤姆逊(青岛)游艇有限公司 | Four-cylinder synchronous hydraulic system |
| CN104455250A (en) * | 2013-09-23 | 2015-03-25 | 西安众智惠泽光电科技有限公司 | Hydraulic type belt pulley automatic tensioning device |
| CN104514854A (en) * | 2013-09-26 | 2015-04-15 | 西安众智惠泽光电科技有限公司 | Hydraulic system for automatic tensioning device of belt pulley |
| CN206035929U (en) * | 2016-08-11 | 2017-03-22 | 广西城市职业学院 | Large -scale plate shearing machine hydraulic control system |
| CN206845568U (en) * | 2017-05-08 | 2018-01-05 | 沈阳建筑大学 | One kind control two-tank method action hydraulic system |
| CN207728647U (en) * | 2017-12-29 | 2018-08-14 | 山东街景店车新能源科技股份有限公司 | A kind of carbody canopy jack-up hydraulic system |
| CN209080768U (en) * | 2018-09-07 | 2019-07-09 | 广州焙欧机械设备有限公司 | A kind of continuous tunnel furnace hydraulic pressure tension system |
-
2018
- 2018-09-07 CN CN201811042746.3A patent/CN109178798A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767545A (en) * | 2012-08-07 | 2012-11-07 | 安奥克斯汤姆逊(青岛)游艇有限公司 | Four-cylinder synchronous hydraulic system |
| CN104455250A (en) * | 2013-09-23 | 2015-03-25 | 西安众智惠泽光电科技有限公司 | Hydraulic type belt pulley automatic tensioning device |
| CN104514854A (en) * | 2013-09-26 | 2015-04-15 | 西安众智惠泽光电科技有限公司 | Hydraulic system for automatic tensioning device of belt pulley |
| CN206035929U (en) * | 2016-08-11 | 2017-03-22 | 广西城市职业学院 | Large -scale plate shearing machine hydraulic control system |
| CN206845568U (en) * | 2017-05-08 | 2018-01-05 | 沈阳建筑大学 | One kind control two-tank method action hydraulic system |
| CN207728647U (en) * | 2017-12-29 | 2018-08-14 | 山东街景店车新能源科技股份有限公司 | A kind of carbody canopy jack-up hydraulic system |
| CN209080768U (en) * | 2018-09-07 | 2019-07-09 | 广州焙欧机械设备有限公司 | A kind of continuous tunnel furnace hydraulic pressure tension system |
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