CN204007997U - A kind of four-bar Sine Pressure Generator - Google Patents
A kind of four-bar Sine Pressure Generator Download PDFInfo
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- CN204007997U CN204007997U CN201420489456.4U CN201420489456U CN204007997U CN 204007997 U CN204007997 U CN 204007997U CN 201420489456 U CN201420489456 U CN 201420489456U CN 204007997 U CN204007997 U CN 204007997U
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Abstract
一种四杆式正弦压力发生器，属于试验技术。该装置包括：电机(1)、主动杆(2)、从动杆(3)、限位器(4)、活塞杆(5)、活塞缸(6)、支架(7)。电机(1)带动主动杆(2)做圆周运动，从动杆(3)与主动杆(2)相连，在限位器(4)的作用下，从动杆(3)带动活塞杆(5)在活塞缸(6)中做往复运动，活塞缸(6)固定在移动支架(8)上。通过改变电机(1)转速来调节活塞缸(6)中正弦压力的频率，通过调节移动支架(8)在水平方向的位置来改变活塞缸(6)中封闭气体的初始体积，从而调节正弦压力的幅值。解决了现有的正弦压力发生器所产生的正弦压力幅值小和频率调节范围窄的问题。
A four-rod sinusoidal pressure generator belongs to the experimental technology. The device comprises: a motor (1), a driving rod (2), a driven rod (3), a limiter (4), a piston rod (5), a piston cylinder (6), and a bracket (7). The motor (1) drives the driving rod (2) to make a circular motion, the driven rod (3) is connected with the driving rod (2), and under the action of the limiter (4), the driven rod (3) drives the piston rod (5 ) reciprocates in the piston cylinder (6), and the piston cylinder (6) is fixed on the mobile support (8). The frequency of the sinusoidal pressure in the piston cylinder (6) is adjusted by changing the rotation speed of the motor (1), and the initial volume of the enclosed gas in the piston cylinder (6) is changed by adjusting the position of the moving bracket (8) in the horizontal direction, thereby adjusting the sinusoidal pressure the magnitude of . The problems of small sinusoidal pressure amplitude and narrow frequency adjustment range generated by the existing sinusoidal pressure generator are solved.
Description
技术领域technical field
本发明属于试验技术。The present invention belongs to experimental technology.
背景技术Background technique
正弦压力发生器是正弦压力校准与模拟实验中的主要核心部分，用来提供一定频率和压力幅值的正弦压力脉冲。正弦压力发生器主要包括出口调制型正弦压力发生器，激振台激励活塞式正弦压力发生器，电机驱动活塞式正弦压力发生器等。以上正弦压力发生器所产生的正弦压力幅值和频率大小调节范围窄，不能满足需大幅调节正弦压力幅值和频率大小的试验需求。The sinusoidal pressure generator is the main core part of the sinusoidal pressure calibration and simulation experiment, which is used to provide sinusoidal pressure pulses with a certain frequency and pressure amplitude. The sinusoidal pressure generator mainly includes the outlet modulation type sinusoidal pressure generator, the excitation table excitation piston type sinusoidal pressure generator, the motor driven piston type sinusoidal pressure generator, etc. The sinusoidal pressure amplitude and frequency generated by the above sinusoidal pressure generator have a narrow adjustment range, which cannot meet the test requirements that require a large adjustment of the sinusoidal pressure amplitude and frequency.
发明内容Contents of the invention
本发明需要解决的技术问题是现有的正弦压力发生器所产生的正弦压力幅值小和频率调节范围窄，不能满足需大幅调节正弦压力幅值和频率大小的试验需求。因此提出一种四杆式正弦压力发生器。The technical problem to be solved by the present invention is that the existing sinusoidal pressure generator has a small sinusoidal pressure amplitude and a narrow frequency adjustment range, which cannot meet the test requirements for greatly adjusting the sinusoidal pressure amplitude and frequency. Therefore, a four-rod sinusoidal pressure generator is proposed.
本发明解决其技术问题所采用的技术方案是：The technical solution adopted by the present invention to solve its technical problems is:
一种四杆式正弦压力发生器，该装置包括：电机、主动杆、从动杆、限位器、活塞杆、活塞缸、固定支架、移动支架。A four-rod sinusoidal pressure generator, the device includes: a motor, a driving rod, a driven rod, a limiter, a piston rod, a piston cylinder, a fixed bracket, and a moving bracket.
该装置各部分之间的连接：Connections between the parts of the device:
将电机固定在固定支架上，电机的转轴与主动杆相连，带动主动杆做圆周运动，从动杆与主动杆相连，在限位器的作用下，从动杆带动活塞杆在活塞缸中做往复运动，活塞缸固定在移动支架上，活塞缸中封闭的空气按照正弦规律被压缩，产生正弦变化的压力，压力的变化频率与电机频率相同，通过改变电机转速来调节活塞缸中正弦压力的频率，通过调节移动支架在水平方向的位置来改变活塞缸中封闭气体的初始体积，从而调节正弦压力的幅值。Fix the motor on the fixed bracket, the rotating shaft of the motor is connected with the driving rod, which drives the driving rod to make a circular motion, and the driven rod is connected with the driving rod. Under the action of the limiter, the driven rod drives the piston rod to move in the piston cylinder. Reciprocating motion, the piston cylinder is fixed on the mobile bracket, the air enclosed in the piston cylinder is compressed according to the sinusoidal law, and a sinusoidal pressure is generated. The frequency of the pressure change is the same as the frequency of the motor, and the sinusoidal pressure in the piston cylinder is adjusted by changing the motor speed. Frequency, by adjusting the position of the moving bracket in the horizontal direction to change the initial volume of the enclosed gas in the piston cylinder, thereby adjusting the amplitude of the sinusoidal pressure.
由理想气体状态方程：From the ideal gas state equation:
PV＝nRTPV = nRT
可知It can be seen
V1/V2＝P2/P1 V 1 /V 2 =P 2 /P 1
因此，活塞缸中封闭气体的初始体积不同，活塞杆在活塞缸中的极限位置便不同，因此能够大幅调节压力幅值。Therefore, the limit position of the piston rod in the piston cylinder is different depending on the initial volume of the enclosed gas in the piston cylinder, so that the pressure amplitude can be adjusted considerably.
本发明的有益效果：Beneficial effects of the present invention:
本发明采用简单可靠的四杆机构，在限位器的作用下，实现了利用活塞杆和活塞缸产生正弦压力的功能，通过改变电机转速来调节活塞缸中正弦压力的频率，通过调节移动支架在水平方向的位置来改变活塞缸中封闭气体的初始体积，从而调节正弦压力的幅值。与已有的正弦压力发生器相比，正弦压力的幅值更高，正弦压力的频率范围更大。The invention adopts a simple and reliable four-bar mechanism. Under the action of the stopper, the function of using the piston rod and the piston cylinder to generate sinusoidal pressure is realized. The frequency of the sinusoidal pressure in the piston cylinder is adjusted by changing the motor speed. The position in the horizontal direction changes the initial volume of the enclosed gas in the piston cylinder, thereby adjusting the magnitude of the sinusoidal pressure. Compared with the existing sinusoidal pressure generator, the amplitude of the sinusoidal pressure is higher, and the frequency range of the sinusoidal pressure is larger.
附图说明Description of drawings
图1一种四杆式正弦压力发生器示意图。Figure 1 is a schematic diagram of a four-rod sinusoidal pressure generator.
图中：电机1、主动杆2、从动杆3、限位器4、活塞杆5、活塞缸6、固定支架7、移动支架8。Among the figure: motor 1, driving rod 2, driven rod 3, limiter 4, piston rod 5, piston cylinder 6, fixed support 7, mobile support 8.
具体实施方式Detailed ways
以附图1为具体实施方式对本发明作进一步说明：The present invention will be further described with accompanying drawing 1 as specific embodiment:
一种四杆式正弦压力发生器，该装置包括：电机1、主动杆2、从动杆3、限位器4、活塞杆5、活塞缸6、固定支架7、移动支架8。A four-rod sinusoidal pressure generator, the device includes: a motor 1, a driving rod 2, a driven rod 3, a limiter 4, a piston rod 5, a piston cylinder 6, a fixed bracket 7, and a moving bracket 8.
该装置各部分之间的连接：Connections between the parts of the device:
将电机1固定在固定支架7上，电机的转轴与主动杆2相连，带动主动杆2做圆周运动，从动杆3与主动杆2相连，在限位器4的作用下，从动杆3带动活塞杆5在活塞缸6中做往复运动，活塞缸6固定在移动支架8上，活塞缸6右侧封闭的空气按照正弦规律被压缩，产生正弦变化的压力。通过改变电机1转速来调节活塞缸6中正弦压力的频率，通过调节移动支架8在水平方向的位置来改变活塞缸6中封闭气体的初始体积，从而调节正弦压力的幅值。Fix the motor 1 on the fixed bracket 7, the rotating shaft of the motor is connected with the active rod 2, drives the active rod 2 to make a circular motion, the driven rod 3 is connected with the active rod 2, and under the action of the limiter 4, the driven rod 3 The piston rod 5 is driven to reciprocate in the piston cylinder 6, the piston cylinder 6 is fixed on the movable support 8, and the closed air on the right side of the piston cylinder 6 is compressed according to the sinusoidal law, generating a sinusoidally changing pressure. The frequency of the sinusoidal pressure in the piston cylinder 6 is adjusted by changing the rotation speed of the motor 1, and the initial volume of the enclosed gas in the piston cylinder 6 is changed by adjusting the position of the moving bracket 8 in the horizontal direction, thereby adjusting the amplitude of the sinusoidal pressure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420489456.4U CN204007997U (en) | 2014-08-28 | 2014-08-28 | A kind of four-bar Sine Pressure Generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420489456.4U CN204007997U (en) | 2014-08-28 | 2014-08-28 | A kind of four-bar Sine Pressure Generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197561A (en) * | 2019-12-31 | 2020-05-26 | 无锡市东亚泵业有限公司 | Reciprocating plunger pump |
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2014
- 2014-08-28 CN CN201420489456.4U patent/CN204007997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197561A (en) * | 2019-12-31 | 2020-05-26 | 无锡市东亚泵业有限公司 | Reciprocating plunger pump |
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