CN111152493A - High-energy screw press of gear drive clutch - Google Patents
High-energy screw press of gear drive clutch Download PDFInfo
- Publication number
- CN111152493A CN111152493A CN202010061571.1A CN202010061571A CN111152493A CN 111152493 A CN111152493 A CN 111152493A CN 202010061571 A CN202010061571 A CN 202010061571A CN 111152493 A CN111152493 A CN 111152493A
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- flywheel
- clutch
- return
- descending
- gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
- B30B1/186—Control arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/12—Clutches specially adapted for presses
Abstract
The invention relates to a high-energy screw press of a gear transmission clutch, which comprises a press body, wherein a main flywheel is horizontally arranged at the top of the press body and is connected with a screw rod vertically arranged in the middle of the press body, a sliding block is arranged at the bottom of the screw rod, a descending clutch system for driving the main flywheel to rotate forwards is also arranged at the top of the press body, a return clutch system for driving the main flywheel to rotate backwards is also arranged at the top of the press body, and a flywheel braking system is also arranged on the main flywheel. The invention has the advantages of eliminating the problem of clutch slippage during striking, precise equipment control, large striking energy, electric energy saving, long service life, low maintenance cost, safety and reliability.
Description
The technical field is as follows:
the invention relates to a press machine, in particular to a high-energy screw press machine of a gear drive clutch.
Background art:
at present, the technology of the press is new and develops for several generations: the driving principle of the first generation friction press is that a vertical friction disc drives an intermediate flywheel to rotate, and the flywheel and a screw are connected in a tight fit manner, so that the up-down movement of a sliding block is realized, the striking and the return stroke are completed, but the equipment has serious defects: the friction disc has a small contact area with the flywheel, the transmission torque is limited, the flywheel acceleration time is too long, and the device cannot accurately control the striking energy and offset load.
The second generation is hydraulic and electric screw press, the driving principle is to use hydraulic or electric motor to drive large flywheel, and the working process is realized by the positive and negative rotation of hydraulic motor or electric motor. However, there are also a number of disadvantages: because the large-torque hydraulic motor is difficult to manufacture, the hydraulic transmission efficiency is not high, the leakage is more, and the hydraulic screw press is not popularized on a large scale. Although the electric screw press is widely popularized, it is not scientific to control the screw motion by means of frequent forward and reverse rotation of the motor, the motor of each working process is accelerated to a rated rotating speed from zero, a variable frequency control technology is adopted, the motor manufacturing technology is limited, and even if the motor with power twice as large as that of the motor with the same tonnage is adopted, the striking energy and the striking force of the electric screw press with the same tonnage are not larger than that of a friction press with the same tonnage. For example, the motor power of 630 ton friction press is 55kw, while the same tonnage electric screw press needs two 55kw 8-stage motors and frequency converters, but the striking power and striking energy of 630 ton electric screw are not as large as 630 ton friction press.
The third generation is a high-energy screw press, the driving principle is that a screw rod is connected with a flywheel through a clutch, when the clutch is absorbed, the flywheel and the screw rod form a whole, the screw rod descends under the action of rotation of the flywheel to finish work, after striking is finished, the clutch is disengaged, and under the action of a return cylinder, a sliding block returns, the screw rod makes passive reverse rotation, and return stroke is realized. But there are quite serious drawbacks: 1. when the striking is finished, the speed of the slider screw approaches zero, the speed of the flywheel basically keeps constant at a high speed, and a certain time is needed for the disengagement of the clutch, so that the full-load slippage of the clutch can occur in each working cycle, and the service life of the clutch is greatly reduced. 2. In order to enable the clutch to transmit larger torque, the clutch is generally driven by a plurality of oil cylinders together, the rated torque of the clutch can be achieved under the combined action of dozens of oil cylinders, a large number of hidden danger leakage points are provided by excessive hydraulic actuating elements, leaked hydraulic oil can be instantly ignited if contacting with a blank of more than 1000 degrees, great danger is caused, and great potential safety hazards exist.
The invention content is as follows:
aiming at the defects in the prior art, the invention aims to provide a high-energy screw press of a gear transmission clutch, which has the advantages of eliminating the problem of clutch slipping, accurately controlling equipment, large striking energy, saving electric energy, long service life, low maintenance cost, safety and reliability.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a high-energy screw press of a gear transmission clutch comprises a press body, wherein a main flywheel is horizontally arranged at the top of the press body and is connected with a screw rod vertically arranged in the middle of the press body, a sliding block is arranged at the bottom of the screw rod, a downlink clutch system for driving the main flywheel to rotate forwards is also arranged at the top of the press body, a return clutch system for driving the main flywheel to rotate backwards is also arranged at the top of the press body, and a flywheel braking system is also arranged on the main flywheel;
the device also comprises a control device, a downlink clutch system, a return clutch system and a flywheel braking system which are all connected with the control device.
Preferably, the control device is a PLC controller.
Preferably, an energy storage end sensor is arranged on the machine body, the sliding block is located at the position of the energy storage end sensor when the flywheel energy storage is ended, a mold closing sensor is arranged on the machine body, the sliding block is located at the position of the mold closing sensor when the sliding block moves downwards to a bottom dead center, a braking start sensor is arranged on the machine body and located above the energy storage end sensor, a braking end sensor is further arranged on the machine body, and the braking end sensor is located below the top dead center of the sliding block; the energy storage end sensor, the mold closing sensor, the braking start sensor and the braking end sensor are all connected with the control device.
Preferably, the descending clutch system comprises a descending gear shaft which is vertically arranged, the lower end of the descending gear shaft is connected to the descending motor, a descending flywheel is connected to the upper bearing of the descending gear shaft, the descending flywheel is connected with the descending gear shaft through the descending clutch, and the descending flywheel is meshed with the main flywheel gear.
Preferably, the return clutch system comprises a vertically arranged return gear shaft, the lower end of the return gear shaft is connected to the return motor, a return flywheel is connected to the upper bearing of the return gear shaft, the return flywheel is connected with the return gear shaft through the return clutch, and the return flywheel is meshed with the main flywheel gear.
Preferably, the screw is connected with the main flywheel through a spline or a tangential key.
Preferably, the main flywheel comprises a main flywheel hub and a main flywheel gear sleeved on the outer side of the main flywheel hub, and an overload safety device is arranged between the main flywheel hub and the main flywheel gear.
Preferably, the downlink clutch and the return clutch are pneumatic clutches, and friction blocks of the downlink clutch and the return clutch are external friction blocks.
The invention adopts the structure and has the following advantages:
1. before the die is pressed against the sliding block, the main flywheel and the clutch are already separated, so that the problem of full-load slipping of the clutch can not occur;
2. because the first-stage gear transmission is arranged between the clutch and the main flywheel, the clutch can be selected to be small, and the equipment cost is reduced;
3. because the rotating speed of the descending flywheel and the return flywheel can reach higher speed, larger energy can be stored under smaller rotational inertia, and meanwhile, the transmission is the transmission of the first-stage gear after the clutch is attracted, so that the transmission efficiency is greatly improved, and the electric energy is saved.
4. The pneumatic clutch is adopted, the torque of the pneumatic clutch is dozens of times larger than that of a driving motor of electric spiral equipment with the same specification, so that the equipment can enable the flywheel to reach the rated rotating speed in a short driving time, obtain larger energy of the main flywheel and greatly improve the striking energy.
5. The equipment is simple to assemble, convenient to maintain, safe and reliable, and the risk of oil leakage is eliminated.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a down clutch system of the present invention.
Fig. 3 is a schematic structural diagram of the return clutch system of the present invention.
In the figure, 1, a machine body, 2, a main flywheel, 3, a screw rod, 4, a slide block, 5, a downward clutch system, 6, a return clutch system, 7, a flywheel brake system, 8, an energy storage end sensor, 9, a mold closing sensor, 10, a brake start sensor, 11, a brake end sensor, 12, a downward gear shaft, 13, a downward flywheel, 14, a downward clutch, 15, a return gear shaft, 16, a return flywheel, 17, a return clutch, 18, an overload safety device, 19, a main flywheel hub, 20 and a main flywheel gear.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1-3, a high-energy screw press of a gear transmission clutch comprises a machine body 1, wherein a main flywheel 2 is horizontally arranged at the top of the machine body 1, the main flywheel 2 is connected with a screw rod 3 vertically arranged in the middle of the machine body 1, a sliding block 4 is arranged at the bottom of the screw rod 3, a downlink clutch system 5 for driving the main flywheel 2 to rotate forwards is further arranged at the top of the machine body 1, a return clutch system 6 for driving the main flywheel 2 to rotate backwards is further arranged at the top of the machine body 1, and a flywheel braking system 7 is further arranged on the main flywheel 2;
the device also comprises a control device, a downlink clutch system 5, a return clutch system 6 and a flywheel brake system 7 which are all connected with the control device.
The control device is a PLC controller.
An energy storage end sensor 8 is arranged on the machine body 1, the sliding block 4 is positioned at the position of the energy storage end sensor 8 when flywheel energy storage is finished, a mold closing sensor 9 is arranged on the machine body 1, the sliding block 4 is positioned at the position of the mold closing sensor 9 when the sliding block 4 descends to a bottom dead center, a braking start sensor 10 is arranged on the machine body 1, the braking start sensor 10 is positioned above the energy storage end sensor 8, a braking end sensor 11 is also arranged on the machine body 1, and the braking end sensor 11 is positioned below the top dead center of the sliding block 4; an energy storage end sensor 8, a mold closing sensor 9, a braking start sensor 10 and a braking end sensor 11 are all connected with the control device.
The setting method of the energy storage end sensor 8 is that when the downstream clutch system 5 drives the main flywheel 2 to finish energy storage, the position of the sliding block 4 is marked, and the position is the position of the energy storage end sensor 8.
The descending clutch system 5 comprises a descending gear shaft 12 which is vertically arranged, the lower end of the descending gear shaft 12 is connected to a descending motor, a descending flywheel 13 is connected to the upper portion of the descending gear shaft 12 in a bearing mode, the descending gear shaft 12 and the descending flywheel 13 can independently rotate, the descending flywheel 13 is connected with the descending gear shaft 12 through a descending clutch 14, and the descending flywheel 13 is in gear meshing connection with the main flywheel 2.
The return clutch system 6 comprises a vertically arranged return gear shaft 15, the lower end of the return gear shaft 15 is connected to a return motor, the upper bearing of the return gear shaft 15 is connected with a return flywheel 16, the return gear shaft 15 and the return flywheel 16 can independently rotate, the return flywheel 16 is connected with the return gear shaft 15 through a return clutch 17, and the return flywheel 16 is in gear meshing connection with the main flywheel 2.
The screw rod 3 is connected with the main flywheel 2 through a spline or a tangential key.
When the flywheel is operated, the downlink clutch system 5 is started, the downlink motor of the downlink clutch system 5 operates to drive the downlink gear shaft 12 to rotate, the downlink clutch 14 and the downlink flywheel 13 are in a suction state at the moment, the downlink gear shaft 12 drives the downlink flywheel 13 to rotate, so that the downlink flywheel 13 drives the main flywheel 2 to rotate in the forward direction, the forward rotation of the main flywheel 2 drives the screw rod 3 to rotate in the forward direction, and the slide block 4 is driven to move downwards;
when the sliding block 4 descends to the energy storage end sensor 8, the energy storage of the main flywheel 2 is completed, the energy storage end sensor 8 transmits a signal to the PLC, the PLC receives the signal and disconnects the descending clutch 14 and the descending flywheel 13 of the descending clutch system 5, the descending clutch system 5 does not drive the main flywheel 2 any more, and the descending clutch system 5 and the return clutch system 6 are in a follow-up state at the moment. Here the down-going clutch 14 is disengaged to effectively avoid the clutch full load slip problem.
The sliding block 4 continues to move downwards until the striking is finished, the sliding block 4 does not move downwards any more after moving downwards to a lower dead point, the die closing sensor 9 is touched, the die closing sensor 9 sends a signal to the PLC, the PLC controls the return clutch 17 of the return clutch system 6 to suck after receiving the signal, the return motor drives the return gear shaft 15 to rotate so as to drive the return flywheel 16 to rotate, and the return flywheel 16 drives the main flywheel 2 to rotate reversely, so that the return of the sliding block 4 is realized.
When the sliding block 4 slides to the braking start sensor 10, the braking start sensor 10 sends a signal to the PLC, the PLC receives the signal and controls the flywheel braking system 7 to start, and simultaneously controls the return clutch 17 of the return clutch system 6 to disengage, and when the braking of the main flywheel 2 is finished, the main flywheel 2 stops rotating.
In the whole process of the downward movement and the return movement of the sliding block 4, the downward movement flywheel 13 and the return movement flywheel 16 are respectively driven by different motors, and the rotating directions of the downward movement flywheel 13 and the return movement flywheel 16 are always opposite.
The main flywheel 2 comprises a main flywheel hub 19 and a main flywheel gear 20 sleeved on the outer side of the main flywheel hub 19, and an overload safety device 18 is arranged between the main flywheel hub 19 and the main flywheel gear 20. The overload protection device 18 arranged on the main flywheel 2 is a disc spring pressing system, friction connection between the main flywheel hub 19 and the main flywheel gear 20 can be guaranteed, friction materials are arranged between the main flywheel hub and the main flywheel gear, slipping between the overload protection device 18 and the main flywheel hub 19 after the transmission torque exceeds a set value can be guaranteed, and damage to the screw rod 3 is avoided. When the press machine is cold, the torque of the main flywheel is increased instantly, and when the torque exceeds the torque provided by the disc spring, the outer ring of the main flywheel slips and the energy is released, so that the purpose of protection is achieved.
The downlink clutch 14 and the return clutch 17 are pneumatic clutches, and friction blocks of the downlink clutch 14 and the return clutch 17 are external friction blocks. The friction block is very convenient to replace, the traditional clutch friction block is very difficult to replace, and the clutch can be replaced only by integrally disassembling the clutch. The torque of the pneumatic clutch is dozens of times larger than that of a driving motor of electric spiral equipment with the same specification, so that the equipment can enable a flywheel to reach a rated rotating speed in a short driving time, can obtain larger energy of a main flywheel more easily, and is larger than the striking energy of the electric spiral equipment with the same specification.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. A high-energy screw press of a gear drive clutch is characterized in that: the device comprises a machine body, wherein a main flywheel is horizontally arranged at the top of the machine body and is connected with a screw rod vertically arranged in the middle of the machine body, a sliding block is arranged at the bottom of the screw rod, a downlink clutch system for driving the main flywheel to rotate forwards is also arranged at the top of the machine body, a return clutch system for driving the main flywheel to rotate backwards is also arranged at the top of the machine body, and a flywheel braking system is also arranged on the main flywheel;
the device also comprises a control device, a downlink clutch system, a return clutch system and a flywheel braking system which are all connected with the control device.
2. A gear drive clutch high energy screw press according to claim 1, characterised in that: the control device is a PLC controller.
3. A gear drive clutch high energy screw press according to claim 2, characterised in that: an energy storage end sensor is arranged on the machine body, the sliding block is positioned at the position of the energy storage end sensor when the flywheel energy storage is ended, a mold closing sensor is arranged on the machine body, the sliding block is positioned at the position of the mold closing sensor when the sliding block moves downwards to a bottom dead center, a braking start sensor is arranged on the machine body and positioned above the energy storage end sensor, a braking end sensor is also arranged on the machine body and positioned below the top dead center of the sliding block; the energy storage end sensor, the mold closing sensor, the braking start sensor and the braking end sensor are all connected with the control device.
4. A gear drive clutch high energy screw press according to claim 2, characterised in that: the descending clutch system comprises a vertically arranged descending gear shaft, the lower end of the descending gear shaft is connected to a descending motor, a descending flywheel is connected to the upper bearing of the descending gear shaft, the descending flywheel is connected with the descending gear shaft through a descending clutch, and the descending flywheel is meshed with a main flywheel gear.
5. A gear drive clutch high energy screw press according to claim 2, characterised in that: the return clutch system comprises a vertically arranged return gear shaft, the lower end of the return gear shaft is connected to a return motor, a return flywheel is connected to the upper bearing of the return gear shaft, the return flywheel is connected with the return gear shaft through a return clutch, and the return flywheel is meshed with a main flywheel gear.
6. A gear drive clutch high energy screw press according to claim 1, characterised in that: the screw rod is connected with the main flywheel through a spline or a tangential key.
7. A gear drive clutch high energy screw press according to claim 1, characterised in that: the main flywheel comprises a main flywheel hub and a main flywheel gear sleeved on the outer side of the main flywheel hub, and an overload safety device is arranged between the main flywheel hub and the main flywheel gear.
8. A gear drive clutch high power screw press according to claims 4 and 5, characterised in that: the descending clutch and the return clutch are pneumatic clutches, and friction blocks of the descending clutch and the return clutch are external friction blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061571.1A CN111152493A (en) | 2020-01-20 | 2020-01-20 | High-energy screw press of gear drive clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061571.1A CN111152493A (en) | 2020-01-20 | 2020-01-20 | High-energy screw press of gear drive clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111152493A true CN111152493A (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010061571.1A Pending CN111152493A (en) | 2020-01-20 | 2020-01-20 | High-energy screw press of gear drive clutch |
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| Country | Link |
|---|---|
| CN (1) | CN111152493A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214177A (en) * | 2022-07-25 | 2022-10-21 | 中锻智能装备设计院(青岛)有限公司 | Screw press |
-
2020
- 2020-01-20 CN CN202010061571.1A patent/CN111152493A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214177A (en) * | 2022-07-25 | 2022-10-21 | 中锻智能装备设计院(青岛)有限公司 | Screw press |
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