CN105642808A - Braking and low-speed feeding energy-saving device of forge rolling machine - Google Patents
Braking and low-speed feeding energy-saving device of forge rolling machine Download PDFInfo
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- CN105642808A CN105642808A CN201511022117.0A CN201511022117A CN105642808A CN 105642808 A CN105642808 A CN 105642808A CN 201511022117 A CN201511022117 A CN 201511022117A CN 105642808 A CN105642808 A CN 105642808A
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- control valve
- directional control
- way directional
- oil
- energy
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Abstract
The invention discloses a braking and low-speed feeding energy-saving device of a forge rolling machine, and the braking and low-speed feeding energy-saving device can recycle rotation kinetic energy of a middle shaft during braking of the forge rolling machine for being stored, and can apply the stored energy to low-speed feeding of the forge rolling machine, so that energy saving is realized. The braking and low-speed feeding energy-saving device of the forge rolling machine comprises the middle shaft of the forge rolling machine, and further comprises a hydraulic motor, an energy-accumulation hydraulic control system and a hydraulic accumulator, wherein the hydraulic motor is in transmission connection to the middle shaft; the hydraulic accumulator has hydraulic oil therein; and the hydraulic motor can enable the rotation kinetic energy of the middle shaft of the forge rolling machine to be mutually converted with pressure potential energy of the hydraulic oil in the hydraulic accumulator via the energy-accumulation hydraulic control system, or the middle shaft drives the hydraulic motor to follow up. By adopting the braking and low-speed feeding energy-saving device of the forge rolling machine, energy resources can be saved, the processing cost and the maintain cost of equipment can be reduced, and the production efficiency of the forge rolling machine is improved.
Description
Technical field
The present invention relates to the drift stop of a kind of forging roll, especially a kind of forging roll braking and the at a slow speed energy-conservation device of feeding.
Background technology
Known: on heavy machinery industry hot closed-die forging forging line, the drift stop of the existing forging roll of application is friction brake (generally comprising floating type and insert formula two kinds), its principle of work is that the moment of friction produced by application friction plate and retarding disc friction is braked. The energy of this kind of mode of braking braking produces heat volatilization on the one hand, not only cause energy wastage, also have a negative impact (aspect such as noise, temperature, dust) to surrounding environment, also friction plate is made to produce abrasion in addition, need on-site maintenance workman according to abrasion loss periodic adjustment, the friction plate (life-span is generally about 2 years) rubbing and also must more renewing afterwards to a certain extent. This kind of mode of braking not only adds workload to service worker, reduces the productivity of forging roll, also brings financial loss to user.
Current demestic user reduces financial loss to improve the productivity of forging roll, and the import friction plate usually selecting the life-span higher, to extend the work-ing life of friction plate, increases maintenance cycle thus increases the economic benefit of equipment to a certain extent. But fundamentally do not improve the rough sledding of this kind of mode of braking. For this reason, being badly in need of a kind of brand-new structure of development provides brake torque for forging roll, fundamentally improves the power loss and disadvantageous effect that use friction disc brake forging roll to produce.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of when forging roll can be braked the rotational kinetic energy of tunnel shaft carry out reclaiming and store, and by the energy apply that stores in the feeding at a slow speed of forging roll, thus realize the braking of energy-conservation forging roll and the energy-conservation device of feeding at a slow speed.
The technical solution adopted for the present invention to solve the technical problems is: forging roll braking and the at a slow speed energy-conservation device of feeding, comprise tunnel shaft that forging roll has, forging roll braking and the energy-conservation device of feeding at a slow speed, also comprise oil motor, energy storing hydraulic controlling systems, hydraulic accumulator;
Described oil motor and tunnel shaft are in transmission connection;In described hydraulic accumulator, there is hydraulic efficiency oil;
Described oil motor makes the pressure potential of hydraulic efficiency oil in the rotational kinetic energy of tunnel shaft and hydraulic accumulator mutually change by energy storing hydraulic controlling systems, or tunnel shaft drives oil motor servo-actuated.
Further, described energy storing hydraulic controlling systems comprises hydraulic valve bank, motor bridge road, fuel tank, check valve, recharging oil device;
Described hydraulic valve bank, comprises safety valve, two position three way directional control valve A, two position three way directional control valve B, bi-bit bi-pass control valve A, two position three way directional control valve C, bi-bit bi-pass control valve B, three position four-way directional control valve, two position three way directional control valve D;
Described oil motor has the first oil-in, the 2nd oil-in and drain tap;
Motor bridge road it is provided with between described first oil-in and the 2nd oil-in; Described motor bridge road is connected with fuel tank, and described drain tap is communicated to fuel tank;
It is connected through two position three way directional control valve A, two position three way directional control valve B successively between described hydraulic accumulator with the first oil-in;
There are between described two position three way directional control valve A and two position three way directional control valve C two paths; Described two position three way directional control valve A is directly connected formation the first path with two position three way directional control valve C, forms the 2nd path through three position four-way directional control valve, bi-bit bi-pass control valve successively between described two position three way directional control valve A and two position three way directional control valve C;
Described 2nd oil-in is communicated to fuel tank, and the 2nd is disposed with two position three way directional control valve C, check valve, recharging oil device, two position three way directional control valve D between oil-in and fuel tank;
There are between described two position three way directional control valve D and two position three way directional control valve C two paths; Described two position three way directional control valve D is connected with two position three way directional control valve C through three position four-way directional control valve, bi-bit bi-pass control valve B successively and forms the first path, and described two position three way directional control valve C is connected formation the 2nd path through check valve, recharging oil device successively with two position three way directional control valve D;
Described hydraulic accumulator is connected with fuel tank by safety valve.
Further, described recharging oil device comprises motor, hydro-pump, surplus valve; Described hydro-pump is arranged between check valve and two position three way directional control valve D, and described motor is connected with hydraulic pump driving; Described surplus valve is arranged between check valve and hydro-pump.
Further, it is provided with the first pressure relay between described hydraulic accumulator and two position three way directional control valve A; The 2nd pressure relay it is provided with between described check valve and two position three way directional control valve C.
Further, it is provided with one-way speed-regulating valve between described two position three way directional control valve D and three position four-way directional control valve.
Further, described two position three way directional control valve A, two position three way directional control valve B, two position three way directional control valve C, two position three way directional control valve D all adopt two-position three way commutation magnetic valve; Described bi-bit bi-pass control valve A, bi-bit bi-pass control valve B all adopt bi-bit bi-pass Controlling solenoid valve; Described three position four-way directional control valve 77 adopts 3-position 4-way commutation magnetic valve. .
Further, described tunnel shaft is in transmission connection by shaft coupling and oil motor.
The invention has the beneficial effects as follows: forging roll provided by the invention braking and the at a slow speed energy-conservation device of feeding, install oil motor in one end of tunnel shaft, the kinetic energy in intermediate shaft brake process is stored in the hydraulic efficiency oil of hydraulic accumulator by energy storing hydraulic controlling systems by oil motor; Thus realize the energy recovery in forging roll braking process, oil motor can be made to be the power in forging roll feeding process at a slow speed by the potential energy in the hydraulic efficiency oil being stored in hydraulic accumulator by energy storing hydraulic controlling systems simultaneously; Thus realize the recycling to recovered energy. Therefore forging roll of the present invention braking and the at a slow speed energy-conservation device of feeding, it is possible to reclaim the energy that braking is wasted and the feeding at a slow speed being used in forging roll, thus save energy. Avoid the mode of braking adopting friction brakes in traditional braking device, reduce the tooling cost of equipment. Owing to there is no the consumptive materials such as friction plate, decrease the workload of service worker, it is to increase the utilization ratio of forging roll, and then improve economic benefit for user; And this apparatus structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is the physical construction schematic diagram of forging roll braking and the energy-conservation device of feeding at a slow speed in the embodiment of the present invention;
The former figure of hydraulic pressure when Fig. 2 is normality in the embodiment of the present invention;
Hydraulic schematic diagram when oil motor is servo-actuated in forging roll work in Fig. 3 embodiment of the present invention;
Hydraulic schematic diagram when forging roll is braked in Fig. 4 embodiment of the present invention;
The hydraulic schematic diagram that in Fig. 5 embodiment of the present invention, in forging roll work, oil motor rotates forward;
The hydraulic schematic diagram of oil motor reversion in forging roll work in Fig. 6 embodiment of the present invention;
Figure indicates: 1-frame, 2-tunnel shaft, 3-oil motor, 31-first oil-in, 32-the 2nd oil-in, 33-drain tap, 4-shaft coupling, 5-energy storing hydraulic controlling systems, 51-motor bridge road, 52-fuel tank, 53-first pressure relay, 54-the 2nd pressure relay, 6-hydraulic accumulator, 7-hydraulic valve bank, 71-safety valve, 72-two position three way directional control valve A, 73-two position three way directional control valve B, 74-bi-bit bi-pass control valve A, 75-two position three way directional control valve C, 76-bi-bit bi-pass control valve B, 77-three position four-way directional control valve, 78-two position three way directional control valve D, 79-one-way speed-regulating valve, 8-clutch coupling, 9-flywheel.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1 and Figure 2, forging roll of the present invention braking and the energy-conservation device of feeding at a slow speed, comprise tunnel shaft 2 that forging roll has, forging roll braking and the energy-conservation device of feeding at a slow speed, also comprise oil motor 3, energy storing hydraulic controlling systems 5, hydraulic accumulator 6;
Described oil motor 3 is in transmission connection with tunnel shaft 2; In described hydraulic accumulator 6, there is hydraulic efficiency oil;
Described oil motor 3 makes the pressure potential of hydraulic efficiency oil in the rotational kinetic energy of tunnel shaft 2 and hydraulic accumulator 6 mutually change by energy storing hydraulic controlling systems 5, or tunnel shaft 2 drives oil motor 3 servo-actuated.
The main effect of described energy storing hydraulic controlling systems 5 is turning to of hydraulic control motor 3 so that oil motor 3 can when forging roll be braked, and the hydraulic pressure that the rotational kinetic energy of tunnel shaft 2 is converted into hydraulic efficiency oil can be stored in hydraulic accumulator 6. Simultaneously in the process of forging roll feeding at a slow speed, by the hydraulic pressure energy of hydraulic efficiency oil in release hydraulic accumulator 6, tunnel shaft 2 is driven to rotate. Thus realize the mutual conversion of the pressure potential of hydraulic efficiency oil in the kinetic energy of tunnel shaft 2 and hydraulic accumulator 6. The idle running of oil motor 3 can be realized when tunnel shaft 2 is in roller state simultaneously; Tunnel shaft 2 is made to drive oil motor 3 servo-actuated.
In the process of work: when being in roller state when forging roll, oil motor 3 dallies, in the kinetic energy of tunnel shaft 2 and hydraulic accumulator 6, the pressure potential of hydraulic efficiency oil does not carry out any mutual conversion; Tunnel shaft 2 drives oil motor 3 servo-actuated.
When forging roll is braked, tunnel shaft 2 drives oil motor 3 to rotate, and the hydraulic efficiency oil in oil motor 3 is pressurizeed by oil motor 3, and the hydraulic efficiency oil after pressurization is stored in hydraulic accumulator 6, so that the kinetic energy of tunnel shaft 2 is converted into the hydraulic pressure potential energy in hydraulic efficiency oil, and store.
When forging roll at a slow speed feeding time, the high pressure liquid force feed being stored in hydraulic accumulator 6 so that oil motor 3 rotates, oil motor 3 drives tunnel shaft 2 to rotate; Thus be the kinetic energy that tunnel shaft 2 rotates by the hydraulic pressure potential energy in hydraulic efficiency oil.
In sum, forging roll of the present invention braking and the at a slow speed energy-conservation device of feeding, install oil motor 3 in one end of tunnel shaft 2, the kinetic energy in tunnel shaft 2 braking process is stored in the hydraulic efficiency oil of hydraulic accumulator 6 by energy storing hydraulic controlling systems 5 by oil motor 3;Thus realize the energy recovery in forging roll braking process, oil motor 3 can be made to be the power in forging roll feeding process at a slow speed by the potential energy in the hydraulic efficiency oil being stored in hydraulic accumulator 6 by energy storing hydraulic controlling systems 5 simultaneously; Thus realize the recycling to recovered energy. Therefore forging roll of the present invention braking and the at a slow speed energy-conservation device of feeding, it is possible to reclaim the energy that braking is wasted and the feeding at a slow speed being used in forging roll, thus save energy. Avoid the mode of braking adopting friction brakes in traditional braking device, reduce the tooling cost of equipment. Owing to there is no the consumptive materials such as friction plate, decrease the workload of service worker, it is to increase the utilization ratio of forging roll, and then improve economic benefit for user; And this apparatus structure is simple, easy to operate.
Described energy storing hydraulic controlling systems 5 can realize the control turned to by oil motor 4 by multiple hydraulic circuit. Wherein a kind of concrete mode is as shown in Figure 2, and described energy storing hydraulic controlling systems 5 comprises hydraulic valve bank 7, motor bridge road 51, fuel tank 52, check valve 55, recharging oil device 56;
Described hydraulic valve bank 7 comprises safety valve 71, two position three way directional control valve A72, two position three way directional control valve B73, bi-bit bi-pass control valve A74, two position three way directional control valve C75, bi-bit bi-pass control valve B76, three position four-way directional control valve 77, two position three way directional control valve D78;
Described oil motor 3 has the first oil-in 31, the 2nd oil-in 32 and drain tap 33;
It is provided with motor bridge road 51 between described first oil-in 31 and the 2nd oil-in 32; Described motor bridge road 51 is connected with fuel tank 52, and described drain tap 33 is communicated to fuel tank 52;
It is connected through two position three way directional control valve A72, two position three way directional control valve B73 successively between described hydraulic accumulator 6 with the first oil-in 31;
There are between described two position three way directional control valve A72 and two position three way directional control valve B73 two paths; Described two position three way directional control valve A72 is directly connected formation the first path with two position three way directional control valve B73, forms the 2nd path through three position four-way directional control valve 77, bi-bit bi-pass control valve 74 successively between described two position three way directional control valve A72 and two position three way directional control valve B73;
Described 2nd oil-in 32 is communicated to fuel tank 52, and is disposed with two position three way directional control valve C75, check valve 55, recharging oil device 56, two position three way directional control valve D78 between the 2nd oil-in 32 and fuel tank 52;
There are between described two position three way directional control valve D78 and two position three way directional control valve C75 two paths; Described two position three way directional control valve D78 is connected with two position three way directional control valve C75 through three position four-way directional control valve 77, bi-bit bi-pass control valve B76 successively and forms the first path, and described two position three way directional control valve C75 is connected formation the 2nd path through check valve 55, recharging oil device 56 successively with two position three way directional control valve D78;
Described hydraulic accumulator 6 is connected with fuel tank 52 by safety valve 71.
Adopt energy storing hydraulic controlling systems 5 described above in the process of work:
1) when normality, now two position three way directional control valve B73 is connected with bi-bit bi-pass control valve A74; Two position three way directional control valve C75 is connected with bi-bit bi-pass control valve B76; Bi-bit bi-pass control valve A74 and bi-bit bi-pass control valve B76 is all in closing condition; therefore the first oil-in 31 of oil motor 3 both sides and the 2nd oil-in 32 are all in air-tight state; thus the rotation of oil motor 3 is limited; when forging roll is when stopped status; tunnel shaft 2 is in locking state; and then the rotation of restriction forging roller, play safeguard protection, now the effect of overload protection is played on motor bridge road 51.
2) when clutch coupling is connected, driving tunnel shaft 2 to rotate, when forging roll enters roll forging state, now oil motor 3 need to be in servo-actuated state, as shown in Figure 3. Now, bi-bit bi-pass control valve A74 and bi-bit bi-pass control valve B76 all connects and is in opening state;
Two position three way directional control valve B73 is connected with bi-bit bi-pass control valve A74; Bi-bit bi-pass control valve A74 is connected with three position four-way directional control valve 77; Two position three way directional control valve C75 is connected with bi-bit bi-pass control valve B76; Bi-bit bi-pass control valve B76 is connected and is connected with three position four-way directional control valve 77; Described three position four-way directional control valve 77 is in middle position.
Now the first oil-in 31 of oil motor 3 both sides and the 2nd oil-in 32 are all in connected state, and what therefore can realize with tunnel shaft 2 is servo-actuated. In order to the hydraulic efficiency oil that replenisher pressure motor is revealed, two position three way directional control valve D78 is connected fuel tank 52 and three position four-way directional control valve 77, and oil chamber, motor both sides is directly connected with mailbox 15.
3) when forging roll completes roll forging needs braking time, hydraulic accumulator 6 recovered energy.
Now clutch coupling 8 is connected so that tunnel shaft 2 and flywheel 9 are in transmission connection; Flywheel 9 drives tunnel shaft 2 to rotate. As shown in Figure 4, described first oil-in 31 is connected with fuel tank 52 through two position three way directional control valve C75, check valve 55, recharging oil device 56, two position three way directional control valve D78 successively; Described 2nd oil-in 32 is connected with hydraulic accumulator 6 through two position three way directional control valve B73, two position three way directional control valve A72 successively.
Tunnel shaft 2 rotates and drives oil motor 3 to rotate as propulsion source, and hydraulic efficiency oil enters into the 2nd oil-in 32 of oil motor 3 from fuel tank 52 through two position three way directional control valve D78, recharging oil device 56, check valve 55, two position three way directional control valve C75; High-pressure oil is become through oil motor 3 supercharging. The high-pressure oil formed in oil motor 3 enters in hydraulic accumulator 6 through two position three way directional control valve B73, two position three way directional control valve A72 successively, thus kinetic energy is converted into pressure and can be stored in hydraulic accumulator 6.
Described hydraulic accumulator 6 is connected with fuel tank 52 by safety valve 71. Described safety valve 71 is used for regulating the upper limit of hydraulic accumulator 6 pressure; Recharging oil device 56 provides high velocity, low pressure hydraulic efficiency oil for oil motor 3 simultaneously, avoids motor 14 intake side to produce cavitation.
4) when feeding at a slow speed and when needing oil motor 3 to rotate forward
Utilize energy that hydraulic accumulator 6 reclaims in the braking mode to drive oil motor 3, release energy. As shown in Figure 5,
Now three position four-way directional control valve 77 makes bi-bit bi-pass control valve B76 be connected with two position three way directional control valve A72; Make two position three way directional control valve D78 be connected with bi-bit bi-pass control valve A74 simultaneously;
First oil-in 31 is connected with fuel tank 52 through two position three way directional control valve B73, bi-bit bi-pass control valve A74, three position four-way directional control valve 77, two position three way directional control valve D78 successively.
2nd oil-in 32 is connected with hydraulic accumulator 6 through two position three way directional control valve C75, bi-bit bi-pass control valve B76, three position four-way directional control valve 77, two position three way directional control valve A72 successively.
Now, high-pressure oil in hydraulic accumulator 6 is as propulsion source, high-pressure oil enters into the 2nd oil-in 31 of oil motor 3 successively through two position three way directional control valve A72, three position four-way directional control valve 77, bi-bit bi-pass control valve B76, two position three way directional control valve C75, drive oil motor 3 rotate, it is achieved oil motor 3 just to rotation thus drive tunnel shaft 2 to realize feeding at a slow speed. Low-pressure hydraulic oil after oil motor 3 is flowed in fuel tank 52 through two position three way directional control valve B73, bi-bit bi-pass control valve A74, three position four-way directional control valve 77, two position three way directional control valve D78 successively by the first oil-in 31.
5) when feeding at a slow speed and when needing oil motor 3 reverse rotation, it is identical that hydraulic circuit rotates forward with oil motor 3, by means of only three position four-way directional control valve 77, bi-bit bi-pass control valve B76 is connected with two position three way directional control valve D78; Make two position three way directional control valve A72 be connected with bi-bit bi-pass control valve A74 simultaneously; Can realizing motor reverse rotation, operation is very easy.
As shown in Figure 6, the first oil-in 31 is connected with hydraulic accumulator 6 through two position three way directional control valve B73, bi-bit bi-pass control valve A74, three position four-way directional control valve 77, two position three way directional control valve A72 successively.
2nd oil-in 32 is connected with fuel tank 52 through two position three way directional control valve C75, bi-bit bi-pass control valve B76, three position four-way directional control valve 77, two position three way directional control valve D78 successively.
By 3 in above-mentioned working process) when forging roll completes roll forging needs braking time, hydraulic accumulator 6 recovered energy. Realize the recovery of braking kinetic energy being stored, 4 in working process) and 5) middle realization to the recycling of hydraulic accumulator 6 recovered energy thus saved the energy.
The main effect of described recharging oil device 56 is for oil motor 3 provides high velocity, low pressure hydraulic efficiency oil, avoids motor 14 intake side to produce cavitation. For the ease of the operation of recharging oil device 56, concrete, described recharging oil device 56 comprises motor 563, hydro-pump 562, surplus valve 561; Described hydro-pump 562 is arranged between check valve 55 and two position three way directional control valve D78, and described motor 563 is in transmission connection with hydro-pump 562; Described surplus valve 561 is arranged between check valve 55 and hydro-pump 562.
In order to precisely required pressure reduction can be rotated by hydraulic control motor 3 so that forging roller returns to zero-bit. Further, it is provided with the first pressure relay 53 between described hydraulic accumulator 6 and two position three way directional control valve A72; The 2nd pressure relay 54 it is provided with between described check valve 55 and two position three way directional control valve C75. The first oil-in 31 side and the pressure reduction of the 2nd oil-in 32 side is detected respectively by the first pressure relay 53 and the 2nd pressure relay 54, feed back controlling water kick valve 561, so that oil motor 3 obtains required pressure reduction, thus the braking moment needed for obtaining, make forging roller return to zero-bit.
For the ease of regulating the speed of feeding at a slow speed, further, it is provided with one-way speed-regulating valve 79 between described two position three way directional control valve D78 and three position four-way directional control valve 77.
For the ease of control, further, described two position three way directional control valve A72, two position three way directional control valve B73, two position three way directional control valve C75, two position three way directional control valve D78 all adopt two-position three way commutation magnetic valve; Described bi-bit bi-pass control valve A74, bi-bit bi-pass control valve B76 all adopt bi-bit bi-pass Controlling solenoid valve; Described three position four-way directional control valve 77 adopts 3-position 4-way commutation magnetic valve.
In order to tunnel shaft 2 and oil motor 3 are carried out driving protection, further, described tunnel shaft 2 is in transmission connection by shaft coupling 4 and oil motor 3.
Claims (7)
1. forging roll braking and the energy-conservation device of feeding at a slow speed, comprises tunnel shaft (2) that forging roll has, it is characterized in that: also comprise oil motor (3), energy storing hydraulic controlling systems (5), hydraulic accumulator (6);
Described oil motor (3) and tunnel shaft (2) are in transmission connection; Described hydraulic accumulator has hydraulic efficiency oil in (6);
Described oil motor (3) makes the rotational kinetic energy of tunnel shaft (2) and the pressure potential of hydraulic accumulator (6) interior hydraulic efficiency oil mutually change by energy storing hydraulic controlling systems (5), or tunnel shaft (2) drives oil motor (3) servo-actuated.
2. forging roll braking as claimed in claim 1 and the at a slow speed energy-conservation device of feeding, it is characterised in that: described energy storing hydraulic controlling systems (5) comprises hydraulic valve bank (7), motor bridge road (51), fuel tank (52), check valve (55), recharging oil device (56);
Described hydraulic valve bank (7) comprises safety valve (71), two position three way directional control valve A (72), two position three way directional control valve B (73), bi-bit bi-pass control valve A (74), two position three way directional control valve C (75), bi-bit bi-pass control valve B (76), three position four-way directional control valve (77), two position three way directional control valve D (78);
Described oil motor (3) has the first oil-in (31), the 2nd oil-in (32) and drain tap (33);
It is provided with motor bridge road (51) between described first oil-in (31) and the 2nd oil-in (32); Described motor bridge road (51) is connected with fuel tank (52), and described drain tap (33) is communicated to fuel tank (52);
It is connected through two position three way directional control valve A (72), two position three way directional control valve B (73) successively between described hydraulic accumulator (6) with the first oil-in (31);
Between described two position three way directional control valve A (72) and two position three way directional control valve B (73), there are two paths; Described two position three way directional control valve A (72) is directly connected formation the first path with two position three way directional control valve B (73), forms the 2nd path through three position four-way directional control valve (77), bi-bit bi-pass control valve A (74) successively between described two position three way directional control valve A (72) and two position three way directional control valve B (73);
Described 2nd oil-in (32) is communicated to fuel tank (52), and is disposed with two position three way directional control valve C (75), check valve (55), recharging oil device (56), two position three way directional control valve D (78) between the 2nd oil-in (32) and fuel tank (52);
Between described two position three way directional control valve D (78) and two position three way directional control valve C (75), there are two paths; Described two position three way directional control valve D (78) is connected with two position three way directional control valve C (75) through three position four-way directional control valve (77), bi-bit bi-pass control valve B (76) successively and forms the first path, and described two position three way directional control valve C (75) is connected formation the 2nd path through check valve (55), recharging oil device (56) successively with two position three way directional control valve D (78);
Described hydraulic accumulator (6) is connected with fuel tank (52) by safety valve (71).
3. forging roll braking as claimed in claim 2 and the at a slow speed energy-conservation device of feeding, it is characterised in that: described recharging oil device (56) comprises motor (563), hydro-pump (562), surplus valve (561); Described hydro-pump (562) is arranged between check valve (55) and two position three way directional control valve D (78), and described motor (563) and hydro-pump (562) are in transmission connection; Described surplus valve (561) is arranged between check valve (55) and hydro-pump (562).
4. forging roll braking as claimed in claim 3 and the at a slow speed energy-conservation device of feeding, it is characterised in that: it is provided with the first pressure relay (53) between described hydraulic accumulator (6) and two position three way directional control valve A (72); The 2nd pressure relay (54) it is provided with between described check valve (55) and two position three way directional control valve C (75).
5. forging roll braking as claimed in claim 2 and the at a slow speed energy-conservation device of feeding, it is characterised in that: it is provided with one-way speed-regulating valve (79) between described two position three way directional control valve D (78) and three position four-way directional control valve (77).
6. such as forging roll braking as described in any one claim in claim 2 to 5 and the energy-conservation device of feeding at a slow speed, it is characterised in that: described two position three way directional control valve A (72), two position three way directional control valve B (73), two position three way directional control valve C (75), two position three way directional control valve D (78) all adopt two-position three way to commutate magnetic valve;Described bi-bit bi-pass control valve A (74), bi-bit bi-pass control valve B (76) all adopt bi-bit bi-pass Controlling solenoid valve; Described three position four-way directional control valve (77) adopts 3-position 4-way commutation magnetic valve.
7. forging roll braking as claimed in claim 1 and the at a slow speed energy-conservation device of feeding, it is characterised in that: described tunnel shaft (2) is in transmission connection by shaft coupling (4) and oil motor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022117.0A CN105642808B (en) | 2015-12-30 | 2015-12-30 | Energy saver is braked and fed at a slow speed to forging roll |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022117.0A CN105642808B (en) | 2015-12-30 | 2015-12-30 | Energy saver is braked and fed at a slow speed to forging roll |
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| Publication Number | Publication Date |
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| CN105642808A true CN105642808A (en) | 2016-06-08 |
| CN105642808B CN105642808B (en) | 2018-04-13 |
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| CN201511022117.0A Active CN105642808B (en) | 2015-12-30 | 2015-12-30 | Energy saver is braked and fed at a slow speed to forging roll |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107989847A (en) * | 2017-12-29 | 2018-05-04 | 沈阳创新航空科技有限公司 | A kind of three-position four-way hydraulic combination valve high temperature and pressure oil circuit system |
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| CN105642808B (en) | 2018-04-13 |
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