阅读说明：本技术 一种具备昼间与夜间两种工作模式的自由活塞空气锤锻造系统 (Free piston air hammer forging system with two working modes of daytime and night ) 是由 吴众 刘中良 张红光 李健 侯孝臣 许永红 于 2019-09-23 设计创作，主要内容包括：本发明提出了一种具备昼间与夜间两种工作模式的自由活塞空气锤锻造系统。该系统包括自由活塞空气锤/压缩机、空干器、储气罐以及相应的连接管路；该系统还包括直线电机、控制模块、电机动子位移传感器、电机控制器、压力传感器、电动阀、电磁三通阀以及相应的连接线路；该系统结构紧凑简单、机电一体化程度高、机械损失小,大大简化了系统的复杂程度,降低了系统的设计成本；该系统的两种工作模式能够利用昼夜间的电价差,降低了运行成本；同时,该系统的开启,调节,关闭能够实现远程自动化控制,且能够通过控制直线电机的运行调整冲击力的大小。(the invention provides a free piston air hammer forging system with two working modes of daytime and nighttime. The system comprises a free piston air hammer/compressor, an air dryer, an air storage tank and corresponding connecting pipelines; the system also comprises a linear motor, a control module, a motor rotor displacement sensor, a motor controller, a pressure sensor, an electric valve, an electromagnetic three-way valve and a corresponding connecting circuit; the system has compact and simple structure, high electromechanical integration degree and small mechanical loss, greatly simplifies the complexity of the system and reduces the design cost of the system; the two working modes of the system can utilize the electricity price difference at daytime and night, so that the running cost is reduced; meanwhile, the system can realize remote automatic control by opening, adjusting and closing, and can adjust the impact force by controlling the operation of the linear motor.)

1. a free piston air hammer forging system having two working modes of daytime and nighttime, characterized in that: the system comprises a motor rotor displacement sensor (1), a control module (3), an electric valve a (5), an electric valve b (7), a motor controller (11), a pressure sensor a (12), a pressure sensor b (13), an electromagnetic three-way valve a (14), an electromagnetic three-way valve b (16), a pressure sensor c (17) and a connecting circuit; the system also comprises a linear motor (2), a free piston air hammer/compressor (a cylinder chamber A (4), a free piston (6), a cylinder chamber B (8), a hammer body (9)), a fixed platform (10), an air storage tank (15), a one-way valve (18), an air dryer (19) and a connecting pipeline;

The connection relationship of each part in the free piston air hammer forging system with the two working modes of daytime and nighttime is as follows:

the free piston (6) is connected with a motor rotor of the linear motor (2) through a joint; the free piston (6) is connected with the hammer body (9) through an adapter;

the motor rotor displacement sensor (1) is arranged on the linear motor (2), and the other end of the motor rotor displacement sensor is connected with the control module (3) through a circuit; the pressure sensor a (12) is arranged on the cylinder chamber A (4), and the other end of the pressure sensor a is connected with the control module (3) through a line; the pressure sensor B (13) is arranged on the cylinder chamber B (8), and the other end of the pressure sensor B is connected with the control module (3) through a circuit; the pressure sensor c (17) is arranged on the air storage tank (15), and the other end of the pressure sensor c is connected with the control module (3) through a line;

Two interfaces of the electric valve a (5) are respectively connected with the atmosphere and the cylinder chamber A (4), and the other end of the electric valve a is connected with the control module (3) through a circuit; two interfaces of the electric valve B (7) are respectively connected with the atmosphere and the cylinder chamber B (8), and the other end of the electric valve B is connected with the control module (3) through a circuit; three ports of the electromagnetic three-way valve a (14) are respectively connected with the cylinder chamber A (4), the air storage tank (15) and the air dryer (19) through pipelines, and the other end of the electromagnetic three-way valve a is connected with the control module (3) through a line; three ports of the electromagnetic three-way valve B (16) are respectively connected with the cylinder chamber B (8), the air storage tank (15) and the air dryer (19) through pipelines, and the other end of the electromagnetic three-way valve B is connected with the control module (3) through a line;

one end of the motor controller (11) is connected with the linear motor (2), and the other end of the motor controller is connected with the control module (3) through a circuit;

The one-way valve (18) is arranged on a pipeline between the air storage tank (15) and the air dryer (19).

2. The free-piston air hammer forging system having both diurnal and nocturnal modes of operation according to claim 1, wherein: the control process is that during the daytime mode, the free piston is in an air hammer mode, a hammer body (9) is installed, a die is placed on a fixed table (10), a control module (3) controls an electromagnetic three-way valve a (14) to enable high-pressure air in an air storage tank to enter a cylinder cavity A (4) to push the free piston (6) to drive the hammer body (9) to forge the die, and meanwhile, the control module (3) controls an electric valve B (7) to be opened to enable air in a cylinder cavity B (8) to be exhausted into the atmosphere; after forging, the control module (3) controls the electromagnetic three-way valve B (16) to enable high-pressure air in the air storage tank to enter a cylinder cavity B (8) to push the free piston (6) to return, meanwhile, the control module (3) controls the electric valve a (5) to be opened to enable air in the cylinder cavity A (4) to be exhausted into the atmosphere,

in a daytime mode, in the forging process, the control module (3) controls the linear motor (2) to pull or push the free piston (6) to adjust the impact force through the motor controller (11); in the process of returning the free piston (6), the control module (3) controls the linear motor (2) to apply resistance to the free piston (6) through the motor controller (11) so as to prevent collision.

3. The free-piston air hammer forging system having both diurnal and nocturnal modes of operation according to claim 1, wherein: its control process, during the night mode, free piston is the compressor mode, does not install hammer block (9), and when the air in cylinder chamber B (8) compressed: the control module (3) controls the electric valve a (5) to be opened, air enters the cylinder cavity A (4), the electric valve B (7), the electromagnetic three-way valve a (14) and the electromagnetic three-way valve B (16) are controlled to be closed, the control module (3) controls the linear motor (2) through the motor controller (11) to push the free piston (6) to compress the air in the cylinder cavity B (8), the compressed high-pressure air enters the air dryer (19) through the electromagnetic three-way valve B (16) to be dried, and the compressed high-pressure air enters the air storage tank (15) through the one-way valve (18) to be stored; when the air in the cylinder chamber a (4) is compressed: the control module (3) controls the electric valve B (7) to be opened, air is made to enter the cylinder cavity B (8), the electric valve a (5), the electromagnetic three-way valve a (14) and the electromagnetic three-way valve B (16) are controlled to be closed, the control module (3) controls the linear motor (2) through the motor controller (11) to push the free piston (6) to compress the air in the cylinder cavity A (4), the compressed high-pressure air enters the air dryer (19) through the electromagnetic three-way valve a (14) to be dried, and the compressed high-pressure air enters the air storage tank (15) through the one-way valve (18) to be stored.

Technical Field

the invention relates to a free piston air hammer forging system with two working modes of daytime and nighttime, belonging to the field of power machinery.

background

the air hammer compresses air by using the compression cylinder, the air is sent into the working cylinder through the distribution valve, the piston and the hammer head are pushed to move up and down to play a hammering role, the operation is flexible, and the air hammer is widely used for producing small and medium-sized forgings. The free piston compressor can simplify the structure of a compressed air system and reduce the design cost; the design of two working modes of daytime and night can fully utilize peak-valley electricity price difference to save the running cost.

disclosure of Invention

The invention provides a free piston air hammer forging system with two working modes of daytime and nighttime. The free piston is used in the system, so that the hammer body can be installed to be used as an air hammer for forging, and the free piston can also be used as a compressor for compressing air, the structure of the system is greatly simplified, and the design cost of the system is reduced; meanwhile, the system utilizes the electricity price difference between day and night to be two working modes of day and night, so that the operation cost is reduced; in addition, the system can adjust the impact force by controlling the operation of the linear motor.

in order to achieve the above object, the present invention adopts the following technical solutions:

the free piston air hammer forging system with two working modes of daytime and night mainly comprises a free piston air hammer/compressor, a linear motor, a control module, a motor controller, an air dryer and an air storage tank.

In daytime mode, the free piston is in an air hammer mode, the die is placed on the fixed table, and the control module controls the opening and closing of the valve to enable high-pressure air in the air storage tank to alternately enter the air cylinder cavity to push the free piston to forge the die.

And in the night mode, the free piston is in a compressor mode, the control module controls the opening and closing of the valve to enable air to alternately enter a cylinder chamber of the free piston in the system, the linear motor pushes the piston to compress the air, and the compressed high-pressure air flows through the air dryer and the one-way valve to enter the air storage tank for storage.

The air hammer forging system for compressing air by using the free piston further comprises an electric valve, an electromagnetic three-way valve, a motor rotor displacement sensor, a pressure sensor, various connecting pipelines and lines. The control module judges and sends out instructions to control the opening and closing of the valve and the operation of the linear motor after analyzing and processing signals of the pressure sensor and the motor rotor displacement sensor in the acquisition system.

The invention has the beneficial effects that:

1. the invention designs a free piston air hammer forging system with two working modes of daytime and nighttime. The system has compact and simple structure, high electromechanical integration degree and small mechanical loss, greatly simplifies the complexity of the system and reduces the design cost of the system;

2. the free piston air hammer forging system with the two working modes of daytime and night utilizes the electricity price difference of daytime and night to be the two working modes of daytime and night, thereby reducing the operation cost;

3. The free piston air hammer forging system with two working modes of daytime and night can be automatically controlled in a remote way by opening, adjusting and closing, and the impact force can be adjusted by controlling the operation of the linear motor.

Drawings

FIG. 1 is a schematic diagram of a free piston air hammer forging system having two modes of day and night operation;

In the figure: 1. a motor rotor displacement sensor; 2. a linear motor; 3. a control module; 4. a cylinder chamber A; 5. an electrically operated valve a; 6. a free piston; 7. an electric valve b; 8. a cylinder chamber B; 9. a hammer body; 10. a fixed table; 11. a motor controller; 12. a pressure sensor a; 13. a pressure sensor b; 14. an electromagnetic three-way valve a; 15. a gas storage tank; 16. an electromagnetic three-way valve b; 17. a pressure sensor c; 18. a one-way valve; 19. and (4) air drying the device.

Detailed Description

the present invention will be described in further detail with reference to the accompanying drawings.

fig. 1 is a schematic view of a free piston hammer forging system having two operation modes of day and night, and the connection relationship is as shown in fig. 1, the free piston hammer forging system having two operation modes of day and night includes a motor mover displacement sensor (1), a control module (3), an electric valve a (5), an electric valve b (7), a motor controller (11), a pressure sensor a (12), a pressure sensor b (13), an electromagnetic three-way valve a (14), an electromagnetic three-way valve b (16), a pressure sensor c (17), and corresponding connection lines;

the system also comprises a linear motor (2), a free piston air hammer/compressor (a cylinder chamber A (4), a free piston (6), a cylinder chamber B (8), a hammer body (9)), a fixed platform (10), an air storage tank (15), a one-way valve (18), an air dryer (19) and corresponding connecting pipelines and components;

The connection relationship of each part in the free piston air hammer forging system with the two working modes of daytime and nighttime is as follows:

The free piston (6) is connected with a motor rotor of the linear motor (2) through a joint;

The free piston (6) is connected with the hammer body (9) through an adapter;

the motor rotor displacement sensor (1) is arranged on the linear motor (2), and the other end of the motor rotor displacement sensor is connected with the control module (3) through a circuit; the pressure sensor a (12) is arranged on the cylinder chamber A (4), and the other end of the pressure sensor a is connected with the control module (3) through a line; the pressure sensor B (13) is arranged on the cylinder chamber B (8), and the other end of the pressure sensor B is connected with the control module (3) through a circuit; the pressure sensor c (17) is arranged on the air storage tank (15), and the other end of the pressure sensor c is connected with the control module (3) through a line;

Two interfaces of the electric valve a (5) are respectively connected with the atmosphere and the cylinder chamber A (4), and the other end of the electric valve a is connected with the control module (3) through a circuit; two interfaces of the electric valve B (7) are respectively connected with the atmosphere and the cylinder chamber B (8), and the other end of the electric valve B is connected with the control module (3) through a circuit; three ports of the electromagnetic three-way valve a (14) are respectively connected with the cylinder chamber A (4), the air storage tank (15) and the air dryer (19) through pipelines, and the other end of the electromagnetic three-way valve a is connected with the control module (3) through a line; three interfaces of the electromagnetic three-way valve B (16) are respectively connected with the cylinder chamber B (8), the gas storage tank (15) and the air dryer (19) through pipelines, and the other end of the electromagnetic three-way valve B is connected with the control module (3) through a line.

One end of the motor controller (11) is connected with the linear motor (2), and the other end of the motor controller is connected with the control module (3) through a circuit;

the one-way valve (18) is arranged on a pipeline between the air storage tank (15) and the air dryer (19).

The working principle of the free piston air hammer forging system with two working modes of daytime and nighttime is described in detail below with reference to the attached drawings:

Fig. 1 is a schematic diagram of the operation process of a free piston air hammer forging system having two operation modes of daytime and nighttime, and the control process is as follows:

In a daytime mode, the free piston is in an air hammer mode, a hammer body (9) is installed, a die is placed on a fixed table (10), the control module (3) controls the electromagnetic three-way valve a (14) to enable high-pressure air in the air storage tank to enter the cylinder cavity A (4) to push the free piston (6), the hammer body (9) is driven to forge the die, and meanwhile the control module (3) controls the electric valve B (7) to be opened to enable air in the cylinder cavity B (8) to be exhausted into the atmosphere; after forging, the control module (3) controls the electromagnetic three-way valve B (16) to enable high-pressure air in the air storage tank to enter a cylinder cavity B (8) to push the free piston (6) to return, meanwhile, the control module (3) controls the electric valve a (5) to be opened to enable air in the cylinder cavity A (4) to be exhausted into the atmosphere,

In a daytime mode, if the impact force is too large or too small in the forging process, the control module (3) can control the linear motor (2) to pull or push the free piston (6) to adjust the impact force through the motor controller (11); in the process of returning the free piston (6), the control module (3) controls the linear motor (2) to apply resistance to the free piston (6) through the motor controller (11) so as to prevent collision.

During the night mode, free piston is the compressor mode, does not install hammer block (9), and when the air in cylinder chamber B (8) compressed: the control module (3) controls the electric valve a (5) to be opened, air enters the cylinder cavity A (4), the electric valve B (7), the electromagnetic three-way valve a (14) and the electromagnetic three-way valve B (16) are controlled to be closed, the control module (3) controls the linear motor (2) through the motor controller (11) to push the free piston (6) to compress the air in the cylinder cavity B (8), the compressed high-pressure air enters the air dryer (19) through the electromagnetic three-way valve B (16) to be dried, and the compressed high-pressure air enters the air storage tank (15) through the one-way valve (18) to be stored; when the air in the cylinder chamber a (4) is compressed: the control module (3) controls the electric valve B (7) to be opened, air is made to enter the cylinder cavity B (8), the electric valve a (5), the electromagnetic three-way valve a (14) and the electromagnetic three-way valve B (16) are controlled to be closed, the control module (3) controls the linear motor (2) through the motor controller (11) to push the free piston (6) to compress the air in the cylinder cavity A (4), the compressed high-pressure air enters the air dryer (19) through the electromagnetic three-way valve a (14) to be dried, and the compressed high-pressure air enters the air storage tank (15) through the one-way valve (18) to be stored.

if forging is performed at night, the free piston can be forged in an air hammer mode.