CN110470501B - Mechanical multipoint synchronous loading device - Google Patents
Mechanical multipoint synchronous loading device Download PDFInfo
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- CN110470501B CN110470501B CN201910881372.2A CN201910881372A CN110470501B CN 110470501 B CN110470501 B CN 110470501B CN 201910881372 A CN201910881372 A CN 201910881372A CN 110470501 B CN110470501 B CN 110470501B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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Abstract
The invention relates to a mechanical multipoint synchronous loading device, which comprises a plurality of loading point components with hydraulic execution elements, wherein the hydraulic execution elements of the adjacent loading point components are connected with a pipeline in series through a tee joint, and a liquid inlet of the pipeline is connected with an outlet of a hydraulic pump; the loading point assembly comprises a chain, a lever support, a lever and a channel, the lever support is connected with the channel, the lever is in pin joint with the lever support, one end of the lever extends out of the lever support and is in pin joint with one end of the chain, the other end of the lever also extends out of the lever support and is in sleeve joint with a thimble sliding block, the thimble sliding block is in pin joint with the sliding block, a threaded hole is formed in the sliding block, one end part of a hydraulic executive component is in threaded connection with the threaded hole, and the other end of the hydraulic executive component extends into. The invention has simple structure, convenient use and easy operation, and the loading value of each loading point can be respectively adjusted according to different loading disclosures, thereby effectively improving the loading precision and the working efficiency, simultaneously reducing the safety risk and leading the investment and the use cost to be lower.
Description
Technical Field
The invention relates to the technical field of test and test, in particular to a mechanical multipoint synchronous loading device for a hoisting and bearing test of a submersible carrier frame.
Background
After the submersible vehicle carrier frame is built, a hoisting bearing test is carried out to check the structural strength, stability and deformation of the frame and verify the design reliability and manufacturing quality. The loading characteristics of the bearing test are as follows:
a. the number of the loading points is generally 8-10, and the loads of the loading points are inconsistent;
b. the load point load is adjusted along with the change of the load condition. The test generally comprises three load working conditions, namely 1 time of dead weight load, 1.5 times of dead weight load and 2.0 times of dead weight load;
c. each loading point needs to be synchronously loaded;
d. ten minutes of stabilization is needed after the loading point reaches the specified load;
the current main approach is to suspend the carrier frame; the load is applied in a weight hanging mode, so that the purpose of checking the carrier frame is achieved. The loading mode that the heavy object hung, unable synchronous loading, the precision is relatively poor, and great heavy object hangs work and brings certain potential safety hazard, especially needs to hang the heavy object again along with load operating mode changes, and work load is big, and is inefficient. At present, a multipoint synchronous hydraulic loading system is adopted for loading, the system is relatively complex to build, and the investment and use cost is high.
Disclosure of Invention
The applicant carries out research and improvement aiming at the existing problems and provides a mechanical multipoint synchronous loading device which can realize multipoint synchronous loading, and the loading values of loading points can be respectively adjusted along with the loading working conditions, so that the loading precision and the working efficiency are effectively improved, and the safety risk is reduced.
The technical scheme adopted by the invention is as follows:
a mechanical multipoint synchronous loading device comprises a plurality of loading point components with hydraulic execution elements, wherein the hydraulic execution elements of adjacent loading point components are connected with a pipeline in series through a tee joint, and a liquid inlet of the pipeline is connected with an outlet of a hydraulic pump;
the specific structure of the loading point assembly is as follows:
the loading point assembly comprises a chain, a lever support, a lever and a channel, the lever support is connected with the channel, the lever is in pin joint with the lever support, one end of the lever extends out of the lever support and is in pin joint with one end of the chain, the other end of the lever also extends out of the lever support and is in sleeve joint with an ejector pin sliding block, the ejector pin sliding block is in pin joint with a sliding block, a threaded hole is formed in the sliding block, one end part of the hydraulic actuating element is in threaded connection with the threaded hole, and the other end of the hydraulic actuating element extends into the channel.
The further technical scheme is as follows:
a pressure gauge and a valve switch are respectively connected to the pipeline;
a graduated scale is also arranged on the lever;
the thimble sliding block is provided with a first opening for matching with the lever;
the sliding block is provided with a second opening used for being matched with the thimble sliding block, and the second opening enables the sliding block to form a U-shaped sliding block;
the hydraulic execution elements can make linear displacement along the notch of the channel;
and a gap is formed between the sliding block and the thimble sliding block.
The invention has the following beneficial effects:
the invention has simple structure, convenient use and easy operation, and the loading value of each loading point can be respectively adjusted according to different loading disclosures, thereby effectively improving the loading precision and the working efficiency, simultaneously reducing the safety risk and leading the investment and the use cost to be lower.
Drawings
Fig. 1 is an isometric view of the present invention.
Fig. 2 is an enlarged schematic view at a of the present invention.
Fig. 3 is a diagram of the application of the present invention in a carrier frame load test.
Wherein: 1. a chain; 2. a chain bolt; 3. a lever support latch; 4. a lever support; 5. a lever; 6. a graduated scale; 7. a channel; 8. a hydraulic cylinder; 9. a sliding block bolt; 10. a slider; 11. a thimble sliding block; 12. a tee joint; 131. a first hydraulic oil pipe; 132. a second hydraulic oil pipe; 14. a pressure gauge; 15. opening and closing a valve; 16. a hydraulic pump; 17. a carrier frame.
Detailed Description
The following describes specific embodiments of the present invention.
As shown in fig. 1 and fig. 2, the mechanical multipoint synchronous loading device includes a plurality of loading point assemblies with hydraulic actuators, the hydraulic actuators of adjacent loading point assemblies are connected in series with a hydraulic oil pipe 13 through a tee 12, in this embodiment, the hydraulic actuators employ hydraulic cylinders 8, liquid inlets of adjacent hydraulic cylinders 8 are connected to the tee 12 through a second hydraulic oil pipe 132, the tee 12 are connected in series through a first hydraulic oil pipe 131, and a liquid inlet of the first hydraulic oil pipe 131 is connected to an outlet of the hydraulic pump 16. The first hydraulic oil pipe 131 is also connected with a pressure gauge 14 and a valve switch 15 respectively.
The specific structure of the loading point assembly is as follows:
the loading point assembly comprises a chain 1, a lever support 4, a lever 5 and a channel 7, the lever support 4 is welded with the channel 7, the lever 5 and the lever support 4 are assembled through a lever support bolt 3, one end of the lever 5 extends out of the lever support 4 and is in pin joint with one end of the chain 1 through a chain bolt 2, the other end of the lever 5 also extends out of the lever support 4 and is in sleeve joint with a thimble sliding block 11, and a first opening used for matching with the lever 5 is formed in the thimble sliding block 11. The thimble sliding block 11 is connected with the sliding block 10 through a sliding block bolt 9 in a pin joint mode, a threaded hole is formed in the sliding block 10, a second opening used for being matched with the thimble sliding block 11 is formed in the sliding block 10, and the sliding block 10 is made to form a U-shaped sliding block through the second opening. A gap is formed between the U-shaped sliding block and the thimble sliding block 11. One end of the hydraulic actuating element is in threaded connection with the threaded hole, and the other end of the hydraulic actuating element extends into the channel 7. A graduated scale 6 is also arranged on the lever 5. The hydraulic actuators are linearly displaceable along the slot of the channel 7.
The specific working process of the invention is as follows:
as shown in fig. 1 to 3, according to the position requirement of the load point of the carrier frame, each load point component is placed below the carrier frame 17, the other end of each chain 1 is connected with the tooling of the carrier frame 17, and then the hydraulic oil cylinder 8 is connected with the first hydraulic oil pipe 131 and the second hydraulic oil pipe 132, so that the load point component and the carrier frame are connected in place.
According to the requirements of the load working conditions, the load value required to be provided by each load point can be known, namely the tension value of the chain 1 is F1, F2，F3… … Fn (n is the number of load points). The pressure of series connection oil circuit can be set for P according to manometer 14, and the piston rod sectional area of each hydraulic cylinder 8 is S, then hydraulic cylinder 8 can provide thrust N (wherein N equals P S), because the lever chain end arm of force is A, then according to lever principle, when thimble slider 11 according to scale 6 on lever 5 adjust to corresponding arm of force value
As shown in fig. 1 to 3, before each loading, the lever 5 in the loading point assembly needs to be leveled, the thimble slider 11 moves to a calculated distance, the hydraulic cylinder 8 moves to the lower part of the U-shaped slider 10 along the channel 7, and the threaded part at one end of the hydraulic cylinder 8 is screwed and fixed with the U-shaped slider 10. Because the slide block 10 and the thimble slide block 11 have a gap, the slide block 10 and the thimble slide block 11 rotate through the slide block pin 9. Starting the hydraulic pump 16 to slowly pressurize, after the pressure gauge 14 reaches a designated value P, closing the valve switch 15, keeping the pressure in the oil path at the value P, keeping the tension of the chain 1 at the designated value, bearing the test load by the carrier frame 17, keeping the required time, after the designated time, closing the hydraulic pump 16, slowly opening the valve switch 15, gradually reducing the pressure of the hydraulic oil in the first hydraulic oil pipe 131 and the second hydraulic oil pipe 132 to zero, and ending the single loading working condition. When other loading conditions are required, the position of the ejector pin slider 11 relative to the lever 5 needs to be readjusted.
The invention has simple structure, convenient use and easy operation, and the loading value of each loading point can be respectively adjusted according to different loading disclosures, thereby effectively improving the loading precision and the working efficiency, simultaneously reducing the safety risk and leading the investment and the use cost to be lower.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.
Claims (5)
1. Mechanical type multiple spot synchronous loading device, its characterized in that: the hydraulic loading device comprises a plurality of loading point assemblies with hydraulic actuating elements, wherein the hydraulic actuating elements of adjacent loading point assemblies are connected with a pipeline in series through a tee joint (12), and a liquid inlet of the pipeline is connected with an outlet of a hydraulic pump (16);
the specific structure of the loading point assembly is as follows:
the loading point assembly comprises a chain (1), a lever support (4), a lever (5) and a channel (7), the lever support (4) is connected with the channel (7), the lever (5) is in pin joint with the lever support (4), one end of the lever (5) extends out of the lever support (4) and is in pin joint with one end of the chain (1), the other end of the lever (5) also extends out of the lever support (4) and is in sleeve joint with an ejector pin sliding block (11), the ejector pin sliding block (11) is in pin joint with a sliding block (10), a threaded hole is formed in the sliding block (10), one end of a hydraulic actuating element is in threaded connection with the threaded hole, and the other end of the hydraulic actuating element extends into the channel (7); a graduated scale (6) is also arranged on the lever (5); the hydraulic actuators may be straight along the slot of the channel (7).
2. The mechanical multipoint synchronous loading device according to claim 1, wherein: and a pressure gauge (14) and a valve switch (15) are respectively connected to the pipeline.
3. The mechanical multipoint synchronous loading device according to claim 1, wherein: the thimble sliding block (11) is provided with a first opening used for being matched with the lever (5).
4. The mechanical multipoint synchronous loading device according to claim 1, wherein: the sliding block (10) is provided with a second opening used for being matched with the thimble sliding block (11), and the second opening enables the sliding block (10) to form a U-shaped sliding block.
5. The mechanical multipoint synchronous loading device according to claim 4, wherein: a gap is reserved between the sliding block (10) and the thimble sliding block (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910881372.2A CN110470501B (en) | 2019-09-18 | 2019-09-18 | Mechanical multipoint synchronous loading device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910881372.2A CN110470501B (en) | 2019-09-18 | 2019-09-18 | Mechanical multipoint synchronous loading device |
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| CN110470501A CN110470501A (en) | 2019-11-19 |
| CN110470501B true CN110470501B (en) | 2021-03-09 |
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| CN111238918A (en) * | 2020-02-18 | 2020-06-05 | 大连理工大学 | In-line mechanical multipoint uniform loading tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201408112Y (en) * | 2009-05-25 | 2010-02-17 | 上海同韵环保能源科技有限公司 | Loading test device for fan blade of wind generating set |
| KR20150014588A (en) * | 2013-07-30 | 2015-02-09 | 한국철도기술연구원 | Apparatus for testing vibration fatigue life of electric railway dropper |
| CN105240350A (en) * | 2015-09-30 | 2016-01-13 | 清华大学 | Large multifunctional rock-soil structure model test platform multi-point servo loading system |
-
2019
- 2019-09-18 CN CN201910881372.2A patent/CN110470501B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201408112Y (en) * | 2009-05-25 | 2010-02-17 | 上海同韵环保能源科技有限公司 | Loading test device for fan blade of wind generating set |
| KR20150014588A (en) * | 2013-07-30 | 2015-02-09 | 한국철도기술연구원 | Apparatus for testing vibration fatigue life of electric railway dropper |
| CN105240350A (en) * | 2015-09-30 | 2016-01-13 | 清华大学 | Large multifunctional rock-soil structure model test platform multi-point servo loading system |
Non-Patent Citations (1)
| Title |
|---|
| 高轴压比高强混凝土框架柱抗震性能试验研究;刘伯权;《土木工程学报》;20050131;第38卷(第1期);全文 * |
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