CN116399698A - Static-load electrohydraulic servo multichannel loading system - Google Patents
Static-load electrohydraulic servo multichannel loading system Download PDFInfo
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- CN116399698A CN116399698A CN202310393859.2A CN202310393859A CN116399698A CN 116399698 A CN116399698 A CN 116399698A CN 202310393859 A CN202310393859 A CN 202310393859A CN 116399698 A CN116399698 A CN 116399698A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 230000003068 static effect Effects 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims 6
- 239000007788 liquid Substances 0.000 claims 5
- 238000009434 installation Methods 0.000 claims 1
- 230000001788 irregular Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a static load electrohydraulic servo multichannel loading system, which comprises a plurality of groups of reaction frame devices, wherein each reaction frame device comprises a main body frame, a bearing cross beam and a servo actuator; the bearing cross beam is connected to the main body frame and can be lifted up and down; the bearing beam is connected with a group of servo actuators capable of being loaded vertically and a group of servo actuators capable of being loaded in all directions, and the two groups of servo actuators can move along the bearing beam independently; the reaction frame devices are respectively arranged on the rails and can move on the rails to change the distance between the adjacent reaction frame devices. The test piece loading test device is applicable to test pieces with different sizes for loading tests. Each bearing beam is provided with a vertical loading and omnibearing loading servo actuator, so that the system is suitable for loading tests of test pieces with regular and irregular shapes, and particularly has great advantages in loading tests of test pieces with irregular shapes.
Description
Technical Field
The invention belongs to the field of test piece mechanical test equipment, and particularly relates to a static load electrohydraulic servo multichannel loading system.
Background
Mechanical tests such as stretching and compression are often required for mechanical parts, mechanical components, building components and the like so as to ensure the service performance of the mechanical parts, mechanical components, building components and the like.
The engine and other equipment have a plurality of irregularly shaped parts and the mechanical test is needed to ensure the mechanical property. Some shaped load bearing members in the construction field also require mechanical tests.
The conventional loading equipment can only carry out vertical loading on a test piece basically, so that only a cylindrical or rectangular test piece with regular shape can be subjected to mechanical test, and the mechanical test equipment cannot be suitable for irregular special-shaped structural members.
Disclosure of Invention
The invention aims to provide a static load electrohydraulic servo multichannel loading system which is applicable to a test piece with regular shape and an irregular test piece.
The invention provides a static load electrohydraulic servo multichannel loading system, which comprises a plurality of groups of reaction frame devices, wherein each reaction frame device comprises a main body frame, a bearing cross beam and a servo actuator; the bearing cross beam is connected to the main body frame and can be lifted up and down; the bearing beam is connected with a group of servo actuators capable of being loaded vertically and a group of servo actuators capable of being loaded in all directions, and the two groups of servo actuators can move along the bearing beam independently; the reaction frame devices are respectively arranged on the rails and can move on the rails to change the distance between the adjacent reaction frame devices.
When the loading system is implemented, the main body frame comprises an upper frame plate, a lower frame plate and upright posts, wherein the upper frame plate and the lower frame plate are arranged in parallel and opposite to each other, and two ends of the upper frame plate and the lower frame plate are connected through the upright posts.
When the loading system is implemented, four upright posts are symmetrically connected between the two ends of the upper frame plate and the lower frame plate.
When the loading system is implemented, the bearing cross beam is a rectangular frame beam, two ends of the bearing cross beam are symmetrically inserted between two upright posts, and the bearing cross beam is guided by the upright posts to move up and down.
When the loading system is implemented, the bearing beam is lifted up and down through the two groups of screw rod sliding block devices, screw rods of the screw rod sliding block devices are arranged between the upright posts at the two ends, the upper ends of the screw rods are arranged on the upper frame plate through bearings, the lower ends of the screw rods penetrate through the lower frame plate and then are connected with an output shaft of the three-in-one speed reducer, and the screw rods are in threaded connection with the bearing beam, so that rotation of the screw rods is converted into up-down motion of the bearing beam along the screw rods.
When the loading system is implemented, racks are arranged on one side of the top surface of each bearing beam in the length direction, and sliding rails are symmetrically arranged on two side surfaces.
When the loading system is implemented, each bearing cross beam is respectively connected with two sliding sleeve frames, each sliding sleeve frame is provided with a three-in-one speed reducer with an output gear, and the output gear is meshed with the rack.
When the loading system is implemented, the numerical control turntable is arranged on the bottom surface of one sliding sleeve frame, the upper end of the servo actuator capable of being loaded in all directions is hinged with the numerical control turntable through the pin shaft, the pin shaft drives the servo actuator to rotate through the three-in-one speed reducer, and the bottom surface of the other sliding sleeve frame is connected with the servo actuator capable of being loaded vertically.
When the loading system is implemented, the bottom surface of the main lower frame plate is provided with the longitudinal beams corresponding to the tracks, wheels are arranged at two ends of the longitudinal beams, and the wheels at one end of the longitudinal beams are driven by the three-in-one speed reducer.
When the loading system is implemented, one end/two ends of each longitudinal beam are respectively provided with an electro-hydraulic rail clamping device.
The main body frame and the bearing beams of the multi-group reaction frame device form a self-reaction structure, and the multi-group reaction frame device can walk and lock on the track by itself, so that the longitudinal loading positions of the two groups of servo actuators on the two bearing beams can be flexibly adjusted and positioned, and the transverse loading positions of the two servo actuators on each bearing beam can be flexibly adjusted and positioned, so that the system can be suitable for loading tests of test pieces with different sizes. Each bearing beam is provided with a vertical loading and omnibearing loading servo actuator, so that the system is suitable for loading tests of test pieces with regular and irregular shapes, and particularly has great advantages in loading tests of test pieces with irregular shapes.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of the reaction force frame device a in fig. 1.
Detailed Description
As shown in fig. 1, the static load electrohydraulic servo multichannel loading system disclosed in the present embodiment includes two groups of reaction frame devices a and B vertically mounted on three parallel rails GD. Each group of counterforce frame device is provided with two servo actuators, one servo actuator can be vertically loaded, and the other servo actuator can be loaded in all directions.
In fig. 1, the inclination angle change driving device of the servo actuator omnidirectionally loaded on the reaction frame device B is not shown, and the test piece placement platform PT is shown on the reaction frame device a. The position and the number of the placing platforms can be adjusted according to the specific size of the test piece in specific application.
Namely, four-way loading is adopted in the embodiment, wherein two vertical loading channels and two omnibearing loading channels are adopted.
As shown in fig. 2, the main body frame of the reaction frame device a includes an upper frame plate A1, a lower frame plate A2 and stand columns A3, the upper frame plate and the lower frame plate are arranged in parallel and opposite to each other, and four stand columns are symmetrically connected between two ends of the upper frame plate and the lower frame plate.
The bottom surface of lower frame board is connected with three longerons A4 that the position corresponds with track GD perpendicularly, and wheel A5 is installed at longeron both ends, and the wheel of one of them end passes through trinity speed reducer A6 drive.
One end of each longitudinal beam is provided with an electro-hydraulic rail clamping device A7.
The bearing cross beam A8 of the reaction frame device A is a rectangular frame beam, one side of the top surface in the length direction is fixed with a rack A9, and two side surfaces are symmetrically fixed with slide rails A10.
The bearing beam is connected with two sliding sleeve frames A11, each sliding sleeve frame is provided with a three-in-one speed reducer A12 with an output gear, and the output gear is meshed with the racks to realize the left-right movement of the sliding sleeve frames, so that the positions of two servo actuators on the bearing beam can be flexibly changed.
In order to facilitate assembly, the two ends of the top plate and the bottom plate of the sliding frame are connected by bolts and nuts.
The bottom surface of one sliding sleeve frame is provided with a numerical control turntable A13, the upper end of a servo actuator A14 capable of being loaded in all directions is hinged with a double-lug plate seat on the bottom surface of the numerical control turntable through a pin shaft A15, the pin shaft drives the double-lug plate seat to rotate through a three-in-one speed reducer A16, and the bottom surface of the other sliding sleeve frame is connected with a servo actuator A17 capable of being loaded vertically.
The numerical control turntable can enable the servo actuator A14 connected with the numerical control turntable to realize 360-degree change of the horizontal direction, and the three-in-one speed reduction A16 can realize change of the inclination angle of the servo actuator 14, so that the servo actuator 14 can realize omnibearing loading.
The bearing cross beam A8 is horizontally arranged, two ends of the bearing cross beam A are inserted between the stand columns A3 at two ends of the counter-force frame device A, the bearing cross beam A is installed and driven to lift up and down through two sets of screw rod sliding block devices, and the stand columns guide the movement of the bearing cross beam.
The screw A17 of the screw slider device is arranged between the two upright posts, is in threaded connection with the bearing beam A8, the upper end of the screw slider device is connected with the upper frame plate A1 through a bearing, and the lower end of the screw slider device penetrates through the lower frame plate A2 and then is connected with the output shaft of the three-in-one speed reducer A18, so that the rotation of the screw is converted into the up-and-down motion of the bearing beam A8 along the screw. Of course, in order to be convenient for install, can install the nut seat on the lead screw, be connected fixedly through nut seat and lead screw, drive the bearing beam through the nut seat and go up and down.
Since the load beam A8 receives the reaction force at the time of the test, in order to ensure the stability of the load beam at the time of the test, the screw a17 is a trapezoidal screw.
The reaction force frame device B has the same main structure as the reaction force frame device a.
The power of two servo actuators on each bearing beam is different, the power of vertical loading is larger, and the power of four servo actuators on the two bearing beams is different. And a displacement sensor is respectively arranged in the cylinder barrel of each servo actuator so as to detect the displacement of the piston of each servo actuator.
The working principle of this embodiment is as follows:
the main body frames of the two groups of counter-force frame devices and the bearing beams form a self-reaction structure, the two groups of counter-force frame devices can both walk and lock on the rails, so that the longitudinal loading positions of the two groups of servo actuators on the two bearing beams can be flexibly adjusted and positioned, and the transverse loading positions of the two servo actuators on each bearing beam can be flexibly adjusted and positioned, so that the system can be suitable for test pieces with different sizes to carry out loading tests. Each bearing beam is provided with a vertical loading and omnibearing loading servo actuator, so that the system can be suitable for loading tests of different heights and different directions of regular and irregular test pieces, and particularly has great advantages in loading tests of irregularly-shaped mechanical parts. Namely, the embodiment can be suitable for the loading mechanical test of various test pieces.
In one to three, other embodiments may employ three or more sets of reaction frame devices to perform the multi-channel loading test depending on the particular structural shape of the test piece.
Claims (10)
1. A static electricity liquid servo multichannel loading system is characterized in that:
the system comprises a plurality of groups of reaction frame devices, wherein each reaction frame device comprises a main body frame, a bearing beam and a servo actuator;
the bearing cross beam is connected to the main body frame and can be lifted up and down;
the bearing beam is connected with a group of servo actuators capable of being loaded vertically and a group of servo actuators capable of being loaded in all directions, and the two groups of servo actuators can move along the bearing beam independently;
the reaction frame devices are respectively arranged on the rails and can move on the rails to change the distance between the adjacent reaction frame devices.
2. The static electricity-carrying liquid servo multi-channel loading system as set forth in claim 1, wherein: the main body frame comprises an upper frame plate, a lower frame plate and upright posts, wherein the upper frame plate and the lower frame plate are arranged in parallel and opposite to each other, and two ends of the upper frame plate and the lower frame plate are connected through the upright posts.
3. The static electricity-carrying liquid servo multi-channel loading system as set forth in claim 2, wherein: the four stand columns are symmetrically connected between two ends of the upper frame plate and the lower frame plate.
4. A static electricity servo multi-channel loading system as recited in claim 3, wherein: the bearing cross beam is a rectangular frame beam, two ends of the bearing cross beam are symmetrically inserted between two upright posts, and the bearing cross beam guides the up-and-down movement of the bearing cross beam through the upright posts.
5. The static electricity servo multichannel loading system of claim 4, wherein: the bearing beam realizes up-and-down lifting through two groups of screw rod sliding block devices, screws of the screw rod sliding block devices are arranged between upright posts at two ends, the upper ends of the screw rod sliding block devices are installed on an upper frame plate through bearings, the lower ends of the screw rod sliding block devices penetrate through an output shaft of the three-in-one speed reducer after passing through a lower frame plate, and the screw rod is in threaded connection with the bearing beam, so that the rotation of the screw rod converts the up-and-down movement of the bearing beam along the screw rod.
6. The static electricity servo multichannel loading system of claim 5, wherein: one side of the top surface of each bearing beam in the length direction is provided with a rack, and two side surfaces are symmetrically provided with sliding rails.
7. The static electricity servo multichannel loading system of claim 6, wherein: each bearing cross beam is respectively connected with two sliding sleeve frames, each sliding sleeve frame is provided with a three-in-one speed reducer with an output gear, and the output gear is meshed with the rack.
8. The static electricity servo multichannel loading system of claim 7, wherein: the bottom surface of one sliding sleeve frame is provided with a numerical control turntable, the upper end of a servo actuator capable of being loaded in all directions is hinged with the numerical control turntable through a pin shaft, the pin shaft drives the numerical control turntable to rotate through a three-in-one speed reducer, and the bottom surface of the other sliding sleeve frame is connected with the servo actuator capable of being loaded vertically.
9. The static electricity-carrying liquid servo multi-channel loading system as set forth in claim 2, wherein: the bottom surface of lower frame board set up with the longeron that the track corresponds, longeron both ends installation wheel, the wheel of one of them end passes through trinity speed reducer drive.
10. The static electricity-carrying liquid servo multi-channel loading system as set forth in claim 9, wherein: one end/two ends of each longitudinal beam are respectively provided with an electro-hydraulic rail clamping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310393859.2A CN116399698A (en) | 2023-04-13 | 2023-04-13 | Static-load electrohydraulic servo multichannel loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310393859.2A CN116399698A (en) | 2023-04-13 | 2023-04-13 | Static-load electrohydraulic servo multichannel loading system |
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| Publication Number | Publication Date |
|---|---|
| CN116399698A true CN116399698A (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310393859.2A Pending CN116399698A (en) | 2023-04-13 | 2023-04-13 | Static-load electrohydraulic servo multichannel loading system |
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| Country | Link |
|---|---|
| CN (1) | CN116399698A (en) |
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2023
- 2023-04-13 CN CN202310393859.2A patent/CN116399698A/en active Pending
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