CN109724878B - Lever fixing device for high-pressure consolidation apparatus - Google Patents
Lever fixing device for high-pressure consolidation apparatus Download PDFInfo
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- CN109724878B CN109724878B CN201711035292.2A CN201711035292A CN109724878B CN 109724878 B CN109724878 B CN 109724878B CN 201711035292 A CN201711035292 A CN 201711035292A CN 109724878 B CN109724878 B CN 109724878B
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- lever
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- bearing platform
- weight
- pressure chamber
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- 238000007596 consolidation process Methods 0.000 title claims abstract description 16
- 230000003247 decreasing effect Effects 0.000 abstract description 5
- 239000002689 soil Substances 0.000 description 4
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009375 geological disposal Methods 0.000 description 1
- 239000002927 high level radioactive waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The invention belongs to the field of geotechnical engineering tests, and particularly relates to a high-pressure consolidation apparatus lever fixing device which can prevent impact load of a lever when weights are increased or decreased and improve test accuracy; the device comprises a base (1), a stand column (2), a bearing platform (3), a lever (4), weights (5), a balance weight (6), a pressure chamber (7), a connecting rod (8) and a fixing device (11); the lower ends of the two upright posts (2) are fixed on the base (1), the bearing platform (3) is fixed at the upper ends of the two upright posts (2), the bearing platform (3) is provided with a pressure chamber (7), the connecting rod (8) passes through the pressure chamber (7) and the bearing platform (3) to be connected with the lever (4), one end of the lever (4) is provided with a balance weight (6), and the other end of the lever (4) is provided with a weight (5); a fixing device (11) is arranged on the upright post (2) close to one end of the weight.
Description
Technical Field
The invention belongs to the field of geotechnical engineering tests, and particularly relates to a lever fixing device for a high-pressure consolidation apparatus.
Background
In order to simulate the body change characteristics of the buffer material, namely the highly compacted bentonite in the high-level waste geological disposal warehouse, consolidation tests under high-pressure environment need to be carried out. The high-pressure consolidation apparatus is mainly used for researching the body deformation characteristics of unsaturated soil. The loading system adopts a lever type loading device, and the soil sample in the pressure chamber is loaded and unloaded by increasing and decreasing weights. Because of the loading and unloading of the high-pressure environment, the weight stack weighs hundreds of kilograms, and obvious impact load can be generated on the soil sample of the pressure chamber when the weight is increased or decreased, the error of the bentonite sample body change characteristic measurement is caused, and the accuracy of test data is affected. Therefore, the invention provides the lever fixing device of the high-pressure consolidation apparatus, which can prevent the impact load of the lever when the weight is increased or decreased and improve the accuracy of test.
Disclosure of Invention
The invention aims to provide a high-pressure consolidation apparatus lever fixing device which can prevent impact load of a lever when weights are increased or decreased and improve test accuracy.
The technical scheme of the invention is as follows:
a lever fixing device for a high-pressure consolidation apparatus comprises a base, a stand column, a bearing platform, a lever, weights, a balance weight, a pressure chamber, a connecting rod and a fixing device; the lower ends of the two upright posts are fixed on the base, the bearing platform is fixed on the upper ends of the two upright posts, a pressure chamber is arranged on the bearing platform, the connecting rod penetrates through the pressure chamber and the bearing platform to be connected with the lever, a balance weight is arranged at one end of the lever, and a weight is arranged at the other end of the lever; and a fixing device is arranged on the upright post close to one end of the weight.
The lever is connected with an upright post shaft near one end of the balance weight.
The fixing device comprises a rectangular groove, a sliding groove, a high-strength round bar, a cross bar and a screw rod, wherein the rectangular groove is positioned in the center of the upright post, and the sliding groove is uniformly distributed on two sides of the rectangular groove; the height of the rectangular groove and the sliding groove controls the upper limit and the lower limit of the lever, and the high-strength round bar is always positioned between the cross bar and the lever; the screw rod penetrates into two ends of the cross rod, and the screw rod moves up and down in the sliding groove and can be screwed with the nut at any position.
The beneficial effects of the invention are as follows:
(1) The lever fixing device of the high-pressure consolidation apparatus provided by the invention has the advantages of simple structure and high strength;
(2) The lever fixing device of the high-pressure consolidation apparatus is simple and convenient to operate, considers the upper and lower limiting positions of the lever, can slide up and down, and meets the requirement of fixing the lever at any position.
Drawings
FIG. 1 is an overall schematic diagram of a high pressure consolidation apparatus according to the present invention;
fig. 2 is an enlarged schematic view of a lever fixing device of a high-pressure consolidation apparatus according to the present invention.
Detailed Description
The invention is further described with reference to the following drawings and examples:
a lever fixing device for a high-pressure consolidation apparatus comprises a base 1, a stand column 2, a bearing platform 3, a lever 4, weights 5, a balance weight 6, a pressure chamber 7, a connecting rod 8 and a fixing device 11; the lower ends of the two upright posts 2 are fixed on the base 1, the bearing platform 3 is fixed on the upper ends of the two upright posts 2, the bearing platform 3 is provided with a pressure chamber 7, the connecting rod 8 passes through the pressure chamber 7 and the bearing platform 3 to be connected with the lever 4, one end of the lever 4 is provided with a balance weight 6, and the other end is provided with a weight 5; the upright post 2 near one end of the weight is provided with a fixing device 11.
The lever 4 is connected with the upright post 2 near one end of the balance weight 6 through a shaft.
The fixing device 11 comprises a rectangular groove 12, a sliding groove 13, a high-strength round bar 14, a cross bar 15 and a screw 16, wherein the rectangular groove 12 is positioned in the center of the upright post 2, and the sliding grooves 13 are uniformly distributed on two sides of the rectangular groove 12; the height of the rectangular groove 12 and the sliding groove 13 controls the upper limit 9 and the lower limit 10 of the lever; the high-strength round bar 14 is always positioned between the cross bar 15 and the lever 4; the screw 16 penetrates both ends of the cross bar 15, and the screw 16 moves up and down in the sliding groove 13 and can be screwed with the nut at any position.
Examples
The lever fixing device of the high-pressure consolidation apparatus mainly comprises a rectangular groove 12, a sliding groove 13, a high-strength round bar 14, a cross rod 15 and a screw 16. Wherein the rectangular groove 12 is positioned in the center of the upright post 2, and the sliding grooves 13 are uniformly distributed on two sides of the rectangular groove 12; the heights of the rectangular groove 12 and the sliding groove 13 are between the upper limit 9 and the lower limit 10 of the lever; when the lever is fixed, the high-strength round bar 14 is always positioned between the cross bar 15 and the lever 4; the screw 16 penetrates into two ends of the cross rod 15, the screw 16 moves up and down in the sliding groove 13 and can be screwed with the nut at any position to play a role in fixing.
The using method of the fixing device is as follows:
(1) Putting the pressed soil sample into a pressure chamber 7 and matching with a connecting rod 8;
(2) Unloading the weight 5, and adjusting the positions of the lever 4 and the balance weight 6 to enable the weights to be in a self-balancing state;
(3) When the weight 5 is added, the cross rod 15 and the screw 16 are moved to be positioned below the lower edge of the lever 4, the high-strength round bar 14 is inserted into the gap between the cross rod 15 and the lever 4, the screw 16 and the nut are screwed, and the lower edge of the lever 4 and the cross rods 15 of the high-strength round bar 14 are tightly contacted;
(4) After the weight 5 is added and stabilized, loosening the screw 16, slowly moving downwards, and effectively preventing the impact load of the weight 5 on the pressure chamber 7;
(5) Similarly, when the weight 5 is unloaded, the cross rod 15 and the screw 16 are moved to be positioned above the upper edge of the lever 4, the high-strength round bar 14 is inserted into the gap between the cross rod 15 and the lever 4, the screw 16 and the nut are screwed, and the upper edge of the lever 4 and the cross rods 15 of the high-strength round bar 14 are tightly contacted;
(6) After the weight 5 is unloaded and stabilized, the screw rod 16 is loosened and slowly moves upwards, so that the impact load of the weight 5 on the pressure chamber 7 can be effectively prevented;
(7) After the loading and unloading test is finished, the data are arranged, and the test is completed.
Claims (1)
1. A lever fixing device for a high-pressure consolidation apparatus, characterized in that: the device comprises a base (1), a stand column (2), a bearing platform (3), a lever (4), weights (5), a balance weight (6), a pressure chamber (7), a connecting rod (8) and a fixing device (11); the lower ends of the two upright posts (2) are fixed on the base (1), the bearing platform (3) is fixed at the upper ends of the two upright posts (2), the bearing platform (3) is provided with a pressure chamber (7), the connecting rod (8) passes through the pressure chamber (7) and the bearing platform (3) to be connected with the lever (4), one end of the lever (4) is provided with a balance weight (6), and the other end of the lever (4) is provided with a weight (5); a fixing device (11) is arranged on the upright post (2) close to one end of the weight;
the lever (4) is connected with the upright post (2) near one end of the balance weight (6) through a shaft;
the fixing device (11) comprises a rectangular groove (12), a sliding groove (13), a high-strength round bar (14), a cross rod (15) and a screw rod (16), wherein the rectangular groove (12) is positioned in the center of the upright post (2), and the sliding groove (13) is uniformly distributed on two sides of the rectangular groove (12); an upper limit (9) and a lower limit (10) of the lever are controlled by the heights of the rectangular groove (12) and the sliding groove (13); the high-strength round bar (14) is always positioned between the cross bar (15) and the lever (4); the screw rod (16) penetrates into two ends of the cross rod (15), the screw rod (16) moves up and down in the sliding groove (13) and can be screwed with the nut at any position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035292.2A CN109724878B (en) | 2017-10-30 | 2017-10-30 | Lever fixing device for high-pressure consolidation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035292.2A CN109724878B (en) | 2017-10-30 | 2017-10-30 | Lever fixing device for high-pressure consolidation apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109724878A CN109724878A (en) | 2019-05-07 |
| CN109724878B true CN109724878B (en) | 2024-02-09 |
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| CN201711035292.2A Active CN109724878B (en) | 2017-10-30 | 2017-10-30 | Lever fixing device for high-pressure consolidation apparatus |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111896388B (en) * | 2020-07-27 | 2023-03-21 | 上海市地矿工程勘察(集团)有限公司 | Consolidation apparatus |
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| CN109724878A (en) | 2019-05-07 |
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