CN113447368A - Concrete torque testing device and testing method - Google Patents
Concrete torque testing device and testing method Download PDFInfo
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- CN113447368A CN113447368A CN202110717058.8A CN202110717058A CN113447368A CN 113447368 A CN113447368 A CN 113447368A CN 202110717058 A CN202110717058 A CN 202110717058A CN 113447368 A CN113447368 A CN 113447368A
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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
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional 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
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0021—Torsional
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- General Physics & Mathematics (AREA)
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a concrete torque testing device and a testing method, and relates to the technical field of concrete testing. The concrete torque testing device is novel and reasonable in structural design, simple in structure, convenient to manufacture and operate, low in operation and maintenance cost, good in testing effect and strong in practicability.
Description
Technical Field
The invention belongs to the technical field of concrete testing equipment, and particularly relates to a concrete torque testing device and a concrete torque testing method.
Background
The torque is a special torque for rotating an object, for example, the torque of an engine is the torque output by the engine from a crankshaft end, and the torque is in inverse proportion to the rotation speed of the engine under the condition of fixed power, and the faster the rotation speed is, the smaller the torque is, and the larger the torque is, and the load capacity of the automobile in a certain range is reflected. The external torque is called torque or external couple torque, and the internal torque is called internal couple torque or torque.
The torque of concrete is also one of important indexes for reflecting the quality of concrete, however, in the technical field of concrete testing, the existing testing devices for the torque of concrete are few and have complex structures; in addition, although there is a concrete standard block for a concrete test, the concrete standard block has a square shape, and it is not easy to perform a torque test. Therefore, in order to solve the torque testing problem of the existing concrete testing block, a concrete torque testing device and a testing method matched with the same are urgently needed.
Disclosure of Invention
The invention provides a concrete torque testing device and a testing method, aiming at solving the problem that the torque of the existing concrete standard block is difficult to test in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention relates to a concrete torque testing device, which comprises a control system, a base, a fixed end and a loading end, wherein the fixed end and the loading end are arranged on two sides of the base; the fixed end comprises a fixed end shell and a fixed end turntable arranged on the upper part of the fixed end shell through a fixed end bearing, and a fixed end mounting hole is formed in the center of the fixed end turntable; the outer edge of the fixed end turntable is provided with an A insulating block, and one side of the A insulating block is provided with an A electrode; the inner side of the fixed end shell is provided with a B electrode corresponding to the A electrode through an insulating support, and a spring is arranged between the A electrode and the B electrode; the loading end comprises a loading end shell and a loading end gear which is arranged on the loading end shell through a loading end bearing and is connected with a driving device, and a loading end mounting hole corresponding to the fixed end mounting hole is formed in the center of the loading end gear; the control system comprises a starting power supply, a loading power supply and a button, wherein the starting power supply and the loading power supply are connected with the driving device in parallel, the button is connected in series on a circuit between the starting power supply and the driving device, and an electrode A and an electrode B are connected in series on a circuit between the loading power supply and the driving device.
As a further improvement of the technical scheme, the fixed end turntable comprises a fixed end turntable body, and both sides of the fixed end turntable body are respectively provided with a fixed end turntable mounting round platform matched with the fixed end bearing; the A insulating block is arranged on the outer edge of the fixed end turntable body.
As a further improvement of the technical scheme, the loading end gear comprises a loading end gear body, and loading end gear mounting round tables matched with the loading end bearings are respectively arranged on two sides of the loading end gear body.
As a further improvement of the technical scheme, the driving device comprises a motor and a gearbox connected with the output end of the motor; the gearbox is arranged on the inner side of the loading end shell, the output end of the gearbox is a driving gear, and the driving gear is meshed with the loading end gear.
As a further improvement of the technical scheme, a control box is arranged on the left side of the loading end, an operation table is arranged on the top of the control box, and the button is arranged on the operation table.
Another technical solution to solve the technical problem of the present invention is as follows:
the invention relates to a concrete torque testing method, which is used for testing the torque of a standard concrete testing block and is carried out by using the concrete torque testing device in the technical scheme, and the concrete torque testing method comprises the following steps:
the method comprises the following steps: cutting a standard concrete test block, and cutting a torque test block;
step two: inserting two ends of the torque testing block into the fixed end mounting hole and the loading end mounting hole respectively;
step three: pressing the button to connect the driving device with the starting power supply, enabling the loading end gear to drive the fixed end turntable to rotate through the torque testing block by the driving device, and loosening the button to disconnect the starting power supply after the A electrode and the B electrode are contacted to enable the loading power supply to supply power to the driving device;
step four: under the action of a loading power supply, the loading end gear continuously drives the fixed end rotary table to rotate through the torque testing block, after the torque testing block is twisted off, the fixed end rotary table loses the support of the torque testing block, and the electrode A and the electrode B are separated under the action of the spring, so that the loading power supply and the driving device are separated;
step five: and calculating the torque bearing limit of the torque test block according to the rotating angle of the loading end gear.
As a further improvement of the technical scheme, the fifth step is to add the torque given to the torque test block by the spring when calculating the torque bearing limit of the torque test block.
As a further improvement of the technical scheme, the standard concrete test block 7 is in a square shape of 150mm × 150mm × 150mm, and the torque test block is 30mm × 150mm in size.
Compared with the prior art, the concrete torque testing device and the concrete torque testing method provided by the invention have the advantages that the structural design is novel and reasonable, the structure is simple, the manufacturing and the operation are convenient, the two electrodes are arranged at the fixed end by utilizing the relay idea, the spring is arranged between the electrodes, when the concrete torque testing block is twisted off, the electrodes can be separated under the action of the spring and a loading power supply for torque loading is disconnected, and the torque bearing limit of the concrete torque testing block can be rapidly calculated through the rotating angle of the loading end gear when the concrete torque testing block is twisted off.
Drawings
FIG. 1 is a schematic structural diagram of a concrete torque testing device according to the present invention;
FIG. 2 is a schematic structural diagram of a concrete torque testing device with a torque testing block installed thereon according to the present invention;
FIG. 3 is a left side view schematically illustrating the concrete torque testing apparatus according to the present invention;
FIG. 4 is a schematic diagram of a concrete torque testing device according to the present invention;
FIG. 5 is a schematic sectional view of the fixed end of the present invention (normal state of the electrode A and the electrode B);
FIG. 6 is a schematic sectional view of the fixed end of the present invention (the A electrode and the B electrode are attached);
FIG. 7 is an enlarged view of a portion of FIG. 5 at A;
FIG. 8 is an enlarged view of a portion of FIG. 6 at B;
FIG. 9 is a schematic view of a fixed end turntable structure according to the present invention;
FIG. 10 is an exploded view of the mounting of the fixed end turntable and fixed end bearing in the present invention;
FIG. 11 is a schematic cross-sectional view of a loading end of the present invention;
FIG. 12 is a schematic view of a loading end gear of the present invention;
FIG. 13 is an exploded view of the loading end gear and loading end bearing assembly of the present invention;
FIG. 14 is a diagram of a control system of the present invention (with the A and B electrodes separated);
FIG. 15 is a diagram of a control system of the present invention (electrode A and electrode B attached);
FIG. 16 is a schematic diagram showing the dimensions of a torque test block and a standard concrete test block according to the present invention;
FIG. 17 is a schematic diagram of the dimensions of a torque test block according to the present invention;
in the figure: 1. a fixed end; 11. a fixed end housing; 12. a fixed end turntable; 121. the fixed end turntable is provided with a round table; 122. a fixed end turntable body; 123. a, an insulating block; 124. an electrode A; 13. a fixed end bearing; 14. a fixed end mounting hole; 15. a B electrode; 16. an insulating support; 17. a spring; 2. a loading end; 21. a loading end housing; 22. a loading end gear; 221. the loading end gear is provided with a circular table; 222. a loading end gear body; 23. loading an end bearing; 24. a loading end mounting hole; 25. a motor; 26. a driving gear; 27. a gearbox; 3. a control box; 4. an operation table; 5. a base; 6. a torque test block; 7. a standard concrete test block; 8. starting a power supply; 9. loading a power supply; 10. a button.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "upper", "lower", "left", "right", "front", "rear", and the like used in the specification and claims of the present disclosure are used only to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships are changed accordingly; the terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The present invention is not described in detail, but is known to those skilled in the art.
Example 1:
referring to fig. 1 and 15, the concrete torque testing device of the present invention includes a control system, a base 5, and a fixed end 1 and a loading end 2 disposed at two sides of the base 5; the fixed end 1 comprises a fixed end shell 11 and a fixed end turntable 12 arranged at the upper part of the fixed end shell 11 through a fixed end bearing 13, and a fixed end mounting hole 14 is formed in the center of the fixed end turntable 12; an A insulating block 123 is arranged on the outer edge of the fixed end turntable 12, and an A electrode 124 is arranged on one side of the A insulating block 123; the inner side of the fixed end shell 11 is provided with a B electrode 15 corresponding to the A electrode 124 through an insulating bracket 16, and a spring 17 is arranged between the A electrode 124 and the B electrode 15; the loading end 2 comprises a loading end shell 21 and a loading end gear 22 which is arranged on the loading end shell 21 through a loading end bearing 23 and is connected with a driving device, a loading end mounting hole 24 corresponding to the fixed end mounting hole 14 is formed in the center of the loading end gear 22, the driving device is used for driving the loading end gear 22 to rotate, and the fixed end mounting hole 14 and the loading end mounting hole 24 are used for mounting a torque test block to be tested; the control system is used for controlling the driving device according to the test requirement, and comprises a starting power supply 8, a loading power supply 9 and a button 10, wherein the starting power supply 8 and the loading power supply 9 are connected in parallel with the driving device, the button 10 is connected in series on a circuit between the starting power supply 8 and the driving device to form a circuit, and the circuit is used for driving a loading end gear 22 through the driving device, and further driving a torque test block and a fixed end turntable 12 to complete the rotation of the distance from an electrode A to an electrode B; an electrode A124 and an electrode B15 are connected in series on a circuit between the loading power supply 9 and the driving device, the electrode A124 and the electrode B15 and the spring 17 jointly play a role of a switch, and form another circuit together with the loading power supply 9 and the driving device, and the other circuit is used for driving the loading end gear 22 to further rotate until the torque testing block is twisted off when the torque testing block is tested.
For better installation of the concrete torque testing device and testing of the torque testing block, the fixed end turntable 12 comprises a fixed end turntable body 122, and fixed end turntable installation round tables 121 matched with the fixed end bearing 13 are respectively arranged on two sides of the fixed end turntable body 122; the fixed end mounting hole 14 is correspondingly formed in the fixed end turntable body 122 and the fixed end turntable mounting circular truncated cone 121, and the insulation block A123 is arranged on the outer edge of the fixed end turntable body 122.
Further, the loading end gear 22 in this embodiment includes a loading end gear body 222, loading end gear mounting bosses 221 matched with the loading end bearings 23 are respectively disposed on two sides of the loading end gear body 222, and the loading end mounting holes 24 are correspondingly disposed on the loading end gear body 222 and the loading end gear mounting bosses 221.
In this embodiment, the driving device includes a motor 25 and a gearbox 27 connected to an output end of the motor 25; the gear box 27 is disposed inside the loading end housing 21, and the output end thereof is a driving gear 26, and the driving gear 26 is engaged with the loading end gear 22.
For the convenience of operation of a tester, a control box 3 is arranged on the left side of the loading end 2, an operation table 4 is arranged on the top of the control box 3, and the button 10 is arranged on the operation table 4.
Example 2:
as shown in fig. 1 to 17, a concrete torque test method according to the present invention is a method for performing a torque test on a standard concrete test block 7 by using the concrete torque test apparatus of example 1, wherein the standard concrete test block 7 has a square shape of 150mm × 150mm × 150mm, and includes the steps of:
the method comprises the following steps: cutting the standard concrete test block 7 into a torque test block 6 with the size of 30mm multiplied by 150mm, so that the test is convenient;
step two: inserting two ends of the torque testing block 6 into the fixed end mounting hole 14 and the loading end mounting hole 24 respectively;
step three: the button 10 is pressed to enable the motor 25 to be connected with the starting power supply 8, the electrode A124 and the electrode B15 are in a disconnected state at the moment, under the action of the starting power supply 8, the motor 25 drives the loading end gear 22 through the driving gear 26 of the gearbox 7, the loading end gear 22 drives the fixed end turntable 12 to rotate through the torque testing block 6 until the electrode A124 on the fixed end turntable 12 is in contact with the electrode B15 on the insulating support 16, the button 10 is released, and the starting power supply 8 is disconnected after the loading power supply 9 supplies power to the motor 25;
step four: under the action of the loading power supply 9, the loading end gear 22 continues to drive the fixed end rotary table 12 to rotate through the torque test block 6, after the torque test block 6 is twisted off, the fixed end rotary table 12 loses the support of the torque test block 6, and the electrode A124 and the electrode B15 are separated under the action of the spring 17, so that the loading power supply 9 and the motor 25 are switched off;
step five: the torque bearing limit of the torque test block 6 is calculated based on the angle by which the loading end gear 22 is rotated at this time. Further, the fifth step is to add the torque given to the torque test block by the spring 17 when calculating the torque bearing limit of the torque test block 6.
In this embodiment, scales may be correspondingly set on the loading end gear 22 or the loading end housing 21, and a corresponding torque value is calculated in advance according to each scale unit and made into a corresponding table, so that during testing, the rotation angle of the loading end gear 22 may be directly loaded, and the table may be directly queried to quickly obtain a corresponding torque value.
Claims (8)
1. The utility model provides a concrete torque testing device which characterized in that: comprises a control system, a base (5), a fixed end (1) and a loading end (2) which are arranged at two sides of the base (5); the fixed end (1) comprises a fixed end shell (11) and a fixed end turntable (12) arranged on the upper part of the fixed end shell (11) through a fixed end bearing (13), and a fixed end mounting hole (14) is formed in the center of the fixed end turntable (12); an A insulating block (123) is arranged on the outer edge of the fixed end turntable (12), and an A electrode (124) is arranged on one side of the A insulating block (123); a B electrode (15) corresponding to the A electrode (124) is arranged on the inner side of the fixed end shell (11) through an insulating support (16), and a spring (17) is arranged between the A electrode (124) and the B electrode (15); the loading end (2) comprises a loading end shell (21) and a loading end gear (22) which is arranged on the loading end shell (21) through a loading end bearing (23) and is connected with a driving device, and a loading end mounting hole (24) corresponding to the fixed end mounting hole (14) is formed in the center of the loading end gear (22); the control system comprises a starting power supply (8), a loading power supply (9) and a button (10), wherein the starting power supply (8) and the loading power supply (9) are connected with a driving device in parallel, the button (10) is connected in series on a circuit between the starting power supply (8) and the driving device, and an electrode A (124) and an electrode B (15) are connected in series on a circuit between the loading power supply (9) and the driving device.
2. A concrete torque testing device according to claim 1, characterized in that: the fixed end turntable (12) comprises a fixed end turntable body (122), and two sides of the fixed end turntable body (122) are respectively provided with a fixed end turntable mounting circular truncated cone (121) matched with the fixed end bearing (13); the A insulating block (123) is arranged on the outer edge of the fixed end turntable body (122).
3. A concrete torque testing device according to claim 1 or 2, wherein: the loading end gear (22) comprises a loading end gear body (222), and loading end gear installation round tables (221) matched with the loading end bearings (23) are respectively arranged on two sides of the loading end gear body (222).
4. A concrete torque testing device according to claim 3, characterized in that: the driving device comprises a motor (25) and a gearbox (27) connected with the output end of the motor (25); the gearbox (27) is arranged on the inner side of the loading end shell (21), the output end of the gearbox is a driving gear (26), and the driving gear (26) is meshed with the loading end gear (22).
5. A concrete torque testing device according to claim 4, characterized in that: the left side of loading end (2) is provided with control box (3), the top of control box (3) is provided with operation panel (4), button (10) set up on operation panel (4).
6. A concrete torque test method is used for performing torque test on a standard concrete test block (7), and is characterized in that: the method is carried out by using the concrete torque testing device of any one of claims 1 to 5, and comprises the following steps:
the method comprises the following steps: cutting the standard concrete test block (7) to obtain a torque test block (6);
step two: inserting two ends of the torque testing block (6) into the fixed end mounting hole (14) and the loading end mounting hole (24) respectively;
step three: the button (10) is pressed to enable the driving device to be connected with the starting power supply (8), the driving device enables the loading end gear (22) to drive the fixed end turntable (12) to rotate through the torque testing block (6), and the button (10) is released to disconnect the starting power supply (8) after the loading power supply (9) supplies power to the driving device until the electrode A (124) is in contact with the electrode B (15);
step four: under the action of a loading power supply (9), a loading end gear (22) continues to drive a fixed end turntable (12) to rotate through a torque test block (6), after the torque test block (6) is twisted off, the fixed end turntable (12) loses the support of the torque test block (6), an electrode A (124) and an electrode B (15) are separated under the action of a spring (17), and the loading power supply (9) and a driving device are separated;
step five: and calculating the torque bearing limit of the torque test block (6) according to the rotating angle of the loading end gear (22).
7. The concrete torque testing method according to claim 6, wherein: and step five, when the torque bearing limit of the torque test block (6) is calculated, adding the torque given to the torque test block by the spring (17).
8. A concrete torque test method according to claim 6 or 7, characterized in that: the standard concrete test block (7) is in a square shape of 150mm multiplied by 150mm, and the torque test block (6) is 30mm multiplied by 150mm in size.
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| CN202110717058.8A CN113447368A (en) | 2021-06-28 | 2021-06-28 | Concrete torque testing device and testing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110717058.8A CN113447368A (en) | 2021-06-28 | 2021-06-28 | Concrete torque testing device and testing method |
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| US20180149567A1 (en) * | 2016-11-29 | 2018-05-31 | The Regents Of The University Of Colorado | Torsion Testing Devices and Methods |
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| CN209820965U (en) * | 2019-04-30 | 2019-12-20 | 慈溪市麒麟衣架有限公司 | Plastic torsion testing machine |
| CN110672431A (en) * | 2019-09-19 | 2020-01-10 | 中铁第四勘察设计院集团有限公司 | Torsion resistance test method and tool for concrete filled steel tube sleeper |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015076160A (en) * | 2013-10-07 | 2015-04-20 | 中国電力株式会社 | Disconnector |
| CN106053225A (en) * | 2016-06-29 | 2016-10-26 | 福建工程学院 | Testing device for applying persistent pressure-torsion damage load to concrete member |
| CN108291850A (en) * | 2016-07-20 | 2018-07-17 | 三角力量管理株式会社 | Torque sensor |
| US20180149567A1 (en) * | 2016-11-29 | 2018-05-31 | The Regents Of The University Of Colorado | Torsion Testing Devices and Methods |
| CN107101872A (en) * | 2017-05-03 | 2017-08-29 | 中铁四局集团有限公司 | Anti-torsion test device for reinforced concrete beam |
| CN108152148A (en) * | 2018-03-19 | 2018-06-12 | 济南凯镭迪精密仪器有限公司 | A kind of quick detection torsionspring load device and torsionspring cutting load testing system |
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Application publication date: 20210928 |
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