CN111380754A - Slot type bias voltage experimental device - Google Patents
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- CN111380754A CN111380754A CN202010397693.8A CN202010397693A CN111380754A CN 111380754 A CN111380754 A CN 111380754A CN 202010397693 A CN202010397693 A CN 202010397693A CN 111380754 A CN111380754 A CN 111380754A
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- 238000012360 testing method Methods 0.000 claims description 23
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- 229910000831 Steel Inorganic materials 0.000 description 3
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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
- G01N3/02—Details
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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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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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
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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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
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Abstract
The invention discloses a slot type bias experiment device, which is used for carrying out a bias experiment on a workpiece and comprises a fixed seat, a pressurizing device, a hinged support and two bias loading platforms; the pressurizing device is arranged at the top of the fixed seat, and the hinged support is arranged at the bottom of the fixed seat; when the bias experiment is carried out, the workpiece is moved between the pressurizing device and the hinged support, then the two bias loading platforms are respectively installed at two ends, close to the pressurizing device and the hinged support, of the workpiece, the bias loading platforms extrude the workpiece at two sides of the workpiece in the loading direction, the bias loading platforms are fixed on the workpiece, a bracket structure does not need to be additionally poured when the workpiece is perforated, the reliability of the bias experiment is guaranteed on the premise of reducing the bias cost, and the requirement of the bias experiment is met.
Description
Technical Field
The invention relates to the field of bias test, in particular to a slot type bias experiment device.
Background
The bias test is an important test for studying the bending resistance of the beam column, wherein the bias refers to that when the column is loaded, the load direction is not on the axis of the column center, but is a distance away from the axis center. Because the common beam column can not meet the requirement of a bias test on the eccentricity, a bracket is usually additionally poured in the beam column forming process, namely a platform is additionally poured, so that the eccentricity can meet the experimental requirement.
For a bias experiment, a group of experiments needs a plurality of workpieces, and if a bracket is poured on each workpiece, the construction process is multiplied, and the manufacturing cost is higher. Therefore, some subjects adopt the method of forming holes on the workpiece and then installing the bracket by using bolts to lock the bracket and the workpiece, and the fixing method, although the cost is low, affects the test result of the bias test, and particularly when the workpiece is made of steel, further reduces the reliability of the bias test.
Disclosure of Invention
The invention aims to provide a slot type bias voltage experimental device to solve the problem that the existing bias voltage device is low in reliability on the premise of low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a slot-in type bias experiment device is used for carrying out bias experiment on a workpiece and comprises a fixed seat, a pressurizing device, a hinged support and two bias loading platforms;
the pressurizing device is arranged at the top of the fixed seat, and the hinged support is arranged at the bottom of the fixed seat;
when a bias test is carried out, the workpiece is positioned between the pressurizing device and the hinged support;
one of the bias loading platforms is arranged at one end of the workpiece close to the pressurizing device and is connected with the pressurizing device and the workpiece, and the other bias loading platform is arranged at one end of the workpiece close to the hinged support and is connected with the hinged support and the workpiece;
the bias loading platform extrudes the workpiece at two sides of the workpiece in the loading direction and is fixedly connected with the workpiece.
Optionally, the bias loading platform comprises a bracket, a pressing block and a loading gasket; the bracket is fixedly connected with the loading gasket, and the pressing block is in sliding connection with the loading gasket;
when a bias test is carried out, the loading gasket is positioned between the pressurizing device and the workpiece or between the hinged support and the workpiece; the bracket and the pressing block respectively press the workpiece on two sides of the workpiece in the biased direction;
the bracket with be connected with two at least bolts between the briquetting, wherein two the bolt is located respectively the both sides of work piece, the bracket with the briquetting corresponds threaded hole is seted up to the position of bolt.
Optionally, the loading gasket is provided with a sliding groove, and the pressing block is convexly provided with a sliding block corresponding to the sliding groove in position and shape;
or the loading gasket is convexly provided with a sliding block, and the pressing block is provided with a sliding groove corresponding to the position and the shape of the sliding block.
Optionally, the number of compacts is one.
Optionally, the number of compacts is two.
Optionally, the slot-in type bias test device further includes a transmission mechanism, and the transmission mechanism is disposed on the fixed seat; one end of the transmission mechanism is connected with the pressurizing device, and the other end of the transmission mechanism is connected with the hinged support and used for centering the pressurizing device and the hinged support.
Optionally, the transmission mechanism comprises a pressurizing translation device, a hinged support translation device and an intermediate transmission device; the intermediate transmission device is positioned between the pressurizing translation device and the hinged support translation device;
one end of the pressurizing translation device is connected with the pressurizing device, and the other end of the pressurizing translation device is connected with the intermediate transmission device;
one end of the hinged support translation device is connected with the hinged support, and the other end of the hinged support translation device is connected with the middle transmission device.
Optionally, the pressurizing translation device comprises a first screw slide, a first ball screw and a first bevel gear; the first lead screw sliding block is sleeved on the first ball lead screw, is in threaded connection with the first ball lead screw and is fixedly connected with the pressurizing device; the first ball screw is rotationally connected with the fixed seat; the first bevel gear is fixedly connected with one end of the first ball screw;
the hinged support translation device comprises a second screw rod sliding block, a second ball screw rod and a second bevel gear; the second lead screw sliding block is sleeved on the second ball lead screw, is in threaded connection with the second ball lead screw and is fixedly connected with the hinged support; the second ball screw is rotationally connected with the fixed seat; the second bevel gear is fixedly connected with one end of the second ball screw;
the rotation directions of the first ball screw and the second ball screw are different;
the middle transmission device comprises a transmission rod and two third bevel gears, the transmission rod is rotatably connected with the fixed seat, the two third bevel gears are respectively and fixedly connected with two ends of the transmission rod, one of the third bevel gears is meshed with the first bevel gear, and the other third bevel gear is meshed with the second bevel gear.
Compared with the prior art, the invention has the following beneficial effects:
according to the slot type bias experiment device, when a bias experiment is carried out, a workpiece is moved between the pressurizing device and the hinged support, then the two bias loading platforms are respectively arranged at the two ends, close to the pressurizing device and the hinged support, of the workpiece, the bias loading platforms are enabled to extrude the workpiece at the two sides of the workpiece along the loading direction, the bias loading platforms are fixed on the workpiece, holes do not need to be formed in the workpiece, a bracket structure does not need to be additionally poured, the reliability of the bias experiment is guaranteed on the premise that the bias cost is reduced, and the requirements of the bias experiment are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention.
Fig. 1 is a schematic view of an overall structure of a slot-in type bias experiment apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a bias loading platform according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic diagram of another exemplary bias loading platform according to the present invention;
fig. 5 is a schematic view of the overall structure of the transmission mechanism according to the embodiment of the invention.
Illustration of the drawings: 10. a workpiece; 20. a fixed seat; 30. a bias loading platform; 31. a bracket; 32. briquetting; 33. loading a gasket; 34. a chute; 35. a slider; 40. a pressurizing device; 50. a hinged support; 60. a bolt; 71. a pressurizing translation device; 711. a first lead screw slide block; 712. a first ball screw; 713. a first bevel gear; 72. a hinged support translation device; 721. a second lead screw slide block; 722. a second ball screw; 723. a second bevel gear; 73. an intermediate transmission; 731. a transmission rod; 732. a third bevel gear.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1 to 5, fig. 1 is a schematic view of an overall structure of a slot-in type bias experiment apparatus according to an embodiment of the present invention, fig. 2 is a schematic view of a bias loading platform according to an embodiment of the present invention, fig. 3 is a schematic view of a cross-sectional structure of fig. 2 along a-a, fig. 4 is a schematic view of another bias loading platform according to an embodiment of the present invention, and fig. 5 is a schematic view of an overall structure of a transmission mechanism according to an embodiment of the present invention.
The slot-in type bias voltage experimental device provided by the embodiment of the invention is mainly applied to a scene of performing a bias voltage experiment on a workpiece, wherein the workpiece has various forms, such as a common square concrete column, an L-shaped concrete column, an I-shaped steel and the like; through improving its structure, under the prerequisite of guaranteeing low cost, improved the reliability of bias voltage experimental apparatus.
As shown in fig. 1, the slot-in type bias test apparatus provided in this embodiment is used for performing a bias test on a workpiece 10, and includes a fixing base 20, a pressing device 40, a hinge support 50, and two bias loading platforms 30; the pressurizing device 40 is arranged at the top of the fixed seat 20, and the hinged support 50 is arranged at the bottom of the fixed seat 20; the fixing base 20 in this embodiment is shaped like "Contraband", and the space between the top and the bottom is the space for placing the workpiece 10.
When the bias test is performed, the workpiece 10 is positioned between the pressing device 40 and the hinge support 50; one of the bias loading platforms 30 is arranged at one end of the workpiece 10 close to the pressurizing device 40 and is connected with the pressurizing device 40 and the workpiece 10, and the other bias loading platform 30 is arranged at one end of the workpiece 10 close to the hinged support 50 and is connected with the hinged support 40 and the workpiece 10; the bias loading platform 30 presses the workpiece 10 on both sides of the workpiece 10 in the load direction, and is fixedly connected to the workpiece 10.
Specifically, when a bias test is performed, the workpiece 10 is moved between the pressurizing device 40 and the hinged support 50, and then the two bias loading platforms 30 are respectively installed at two ends of the workpiece 10 close to the pressurizing device 40 and the hinged support 50, so that the bias loading platforms 30 extrude the workpiece 10 at two sides of the workpiece 10 along the load direction, the bias loading platforms 30 are fixed on the workpiece 10, no hole needs to be formed in the workpiece 10, no additional bracket structure needs to be poured, the reliability of the bias test is ensured on the premise of reducing the bias cost, and the requirement of the bias test is met.
Further, as shown in fig. 2, the bias loading platform 30 includes a bracket 31, a pressing block 32 and a loading washer 33; the bracket 31 is fixedly connected with the loading gasket 33, and the pressing block 32 is slidably connected with the loading gasket 33; in this embodiment, the bracket 31 is a flat plate, one side of the flat plate is a plane capable of being attached to a workpiece, and the other side of the flat plate is provided with a rib capable of supporting the loading pad 33, and the rib may be a steel bar structure.
When performing the bias test, the loading pad 33 is located between the pressing device 40 and the workpiece 10, or between the hinge support 40 and the workpiece 10; the bracket and the pressing block 32 respectively press the workpiece 10 at both sides of the workpiece 10 in the biased direction; at least two bolts 60 are connected between the bracket 31 and the pressing block 32, wherein the two bolts 60 are respectively positioned at two sides of the workpiece 10, and threaded holes are formed in the positions of the bracket 31 and the pressing block 32 corresponding to the bolts 60. When the bias loading platform 30 is installed, the pressing block 32 slides in the direction close to the workpiece 20, after the bracket 31 and the pressing block 32 respectively press the two ends of the workpiece 20, the bolt 60 penetrates through the threaded holes of the bracket 31 and the pressing block 32, the bracket 31 and the pressing block 32 are pressed tightly against the workpiece, and the installation reliability of the bias loading platform 30 is improved.
It should be added that there are other forms for pressing the workpiece 10 for the bracket 31 and the pressing block 32, for example, a fastening groove is provided on the bracket 31, a fastening is provided on the pressing block 32, and when the workpiece 10 is pressed by the bracket 31 and the pressing block 32, the fastening is fastened into the fastening groove to achieve the effect of pressing the workpiece 10. For example, an electromagnet is provided on the bracket 31, an iron block is provided on the pressing block 32, and the electromagnet is activated when the bracket 31 and the pressing block 32 are required to press the workpiece 10.
Further, as shown in fig. 3, the loading pad 33 is provided with a sliding slot 34, and the pressing block 32 is convexly provided with a sliding block 35 at a position and in a shape corresponding to the sliding slot 34; or, the loading pad 33 is convexly provided with a slide block 35, and the pressing block 32 is provided with a sliding groove 34 corresponding to the position and shape of the slide block 35. Specifically, the slider 35 is shaped like a "T" block, and the chute 34 is correspondingly shaped like a "T".
As shown in fig. 1, in a specific embodiment, the number of the pressing blocks 32 is one, two sliding grooves 34 are formed on the pressing blocks 32, and sliding blocks 35 are welded at positions of the loading gaskets 33 corresponding to the sliding grooves 34; one end of the L-shaped part of the pressing block 32 is provided with a sliding groove 34, and the other end is provided with a threaded hole.
As shown in fig. 4, in another specific embodiment, the number of the pressing blocks 32 is two, two pressing blocks 32 are respectively provided with a sliding groove 34, a sliding block 35 is welded at a position of the loading gasket 33 corresponding to the sliding groove 34, because the number of the pressing blocks 32 is two and are respectively connected with the loading gasket 33 in a sliding manner, the loading platform 30 can be installed on the L-shaped concrete column and fully contacts with the L-shaped concrete column, a good fixing effect is achieved, and the stability of the loading platform 30 is improved, thereby improving the reliability of the slot-in type bias voltage experimental apparatus, expanding the experimental object range of the slot-in type bias voltage experimental apparatus, and improving the applicability.
Further, the slot-in type bias test device further comprises a transmission mechanism, and the transmission mechanism is arranged on the fixed seat 20; one end of the transmission mechanism is connected with the pressurizing device 40, and the other end of the transmission mechanism is connected with the hinged support 50 and used for centering the pressurizing device 40 and the hinged support 50. Through the setting of drive mechanism for pressure device 40 and hinged-support 50 can the simultaneous movement, guarantee that the force point of pressure device 40 and hinged-support 50 is located the collinear, satisfy the condition of centering promptly, make actual conditions more press close to theoretical data, reduce the error rate, improve slot-in type bias voltage experimental apparatus's data accuracy.
Further, as shown in fig. 5, the transmission mechanism includes a pressurizing translation device 71, a hinge support translation device 72, and an intermediate transmission device 73; the intermediate transmission device 73 is positioned between the pressurizing translation device 71 and the hinged support translation device 72; one end of the pressurizing translation device 71 is connected with the pressurizing device 40, and the other end is connected with the intermediate transmission device 73; the hinge support translation device 71 has one end connected to the hinge support 50 and the other end connected to the intermediate transmission device 73. When the pressurizing device 40 is moved, the pressurizing translation device 71 is driven to move, so that the intermediate rotating device 73 is driven to transmit, and the hinged support translation device 72 is driven to move, so that the function of synchronous movement of the hinged support 50 and the pressurizing device 40 is realized; the opposite is true when moving the hinge support 50.
Specifically, the pressurizing translation device 71 includes a first screw slider 711, a first ball screw 712, and a first bevel gear 713; the first screw block 711 is sleeved on the first ball screw 712, is in threaded connection with the first ball screw 712, and is fixedly connected with the pressurizing device 40; the first ball screw 712 is rotatably connected with the fixed seat 20; a first bevel gear 713 is fixedly connected to one end of the first ball screw 712;
the hinged-support translation device 72 includes a second screw slider 721, a second ball screw 722 and a second bevel gear 723; the second screw rod sliding block 721 is sleeved on the second ball screw rod 722, is in threaded connection with the second ball screw rod 722, and is fixedly connected with the hinged support 50; the second ball screw 722 is rotatably connected with the fixed seat 20; a second bevel gear 723 is fixedly connected with one end of the second ball screw 722;
the first ball screw 712 and the second ball screw 722 have different rotation directions; the intermediate transmission device 73 includes a transmission rod 731 and two third bevel gears 732, the transmission rod 731 is rotatably connected to the fixed base 20, the two third bevel gears 732 are respectively fixedly connected to two ends of the transmission rod 731, one of the two third bevel gears is engaged with the first bevel gear 713, and the other is engaged with the second bevel gear 723.
In summary, the slot-in bias test apparatus of the present embodiment has the characteristics of saving design time, saving construction process, saving material, and being recyclable, and ensures reliability and accuracy of the bias test on the premise of ensuring low cost; moreover, the device is detachable, adjustable in size and capable of being sleeved into test pieces with different sizes and different cross sections, and different experimental requirements are met.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A slot-type bias experiment device is used for performing bias experiment on a workpiece (10), and is characterized by comprising a fixed seat (20), a pressurizing device (40), a hinged support (50) and two bias loading platforms (30);
the pressurizing device (40) is arranged at the top of the fixed seat (20), and the hinged support (50) is arranged at the bottom of the fixed seat (20);
when performing a bias test, the workpiece (10) is located between the pressing device (40) and the hinge support (50);
one of the bias loading platforms (30) is arranged at one end of the workpiece (10) close to the pressing device (40) and is connected with the pressing device (40) and the workpiece (10), and the other bias loading platform (30) is arranged at one end of the workpiece (10) close to the hinge support (50) and is connected with the hinge support (40) and the workpiece (10);
the bias loading platform (30) presses the workpiece (10) at two sides of the workpiece (10) in the load direction and is fixedly connected with the workpiece (10).
2. The slot-in type bias experiment device according to claim 1, wherein the bias loading platform (30) comprises a bracket (31), a pressing block (32) and a loading gasket (33); the bracket (31) is fixedly connected with the loading gasket (33), and the pressing block (32) is in sliding connection with the loading gasket (33);
when performing a bias test, the loading pad (33) is positioned between the pressing device (40) and the workpiece (10) or between the hinge support (40) and the workpiece (10); the bracket and the pressing block (32) respectively press the workpiece (10) at two sides of the biased direction of the workpiece (10);
bracket (31) with be connected with two at least bolts (60) between briquetting (32), wherein two bolt (60) are located respectively the both sides of work piece (10), bracket (31) with briquetting (32) correspond the position of bolt (60) is seted up threaded hole.
3. The slot-type bias experiment device according to claim 2, wherein the loading gasket (33) is provided with a sliding slot (34), and a sliding block (35) is convexly arranged on the pressing block (32) corresponding to the sliding slot (34) in position and shape;
or the loading gasket (33) is convexly provided with a sliding block (35), and the pressing block (32) is provided with a sliding groove (34) corresponding to the position and the shape of the sliding block (35).
4. The slot-in type bias experiment device according to claim 2, wherein the number of the pressing blocks (32) is one.
5. The slot-in type bias experiment device according to claim 2, wherein the number of the pressing blocks (32) is two.
6. The slot-in type bias experiment device according to claim 1, further comprising a transmission mechanism, wherein the transmission mechanism is disposed on the fixed base (20); one end of the transmission mechanism is connected with the pressurizing device (40), and the other end of the transmission mechanism is connected with the hinged support (50) and used for centering the pressurizing device (40) and the hinged support (50).
7. The slot-in type bias experiment device according to claim 6, wherein the transmission mechanism comprises a pressurizing translation device (71), a hinged support translation device (72) and an intermediate transmission device (73); the intermediate transmission device (73) is positioned between the pressurizing translation device (71) and the hinged support translation device (72);
one end of the pressurizing translation device (71) is connected with the pressurizing device (40), and the other end of the pressurizing translation device is connected with the intermediate transmission device (73);
one end of the hinged support translation device (72) is connected with the hinged support (50), and the other end of the hinged support translation device is connected with the intermediate transmission device (73).
8. The slot-in type bias experiment device according to claim 7, wherein the pressurizing translation device (71) comprises a first lead screw slider (711), a first ball screw (712) and a first bevel gear (713); the first screw rod sliding block (711) is sleeved on the first ball screw rod (712), is in threaded connection with the first ball screw rod (712), and is fixedly connected with the pressurizing device (40); the first ball screw (712) is rotationally connected with the fixed seat (20); the first bevel gear (713) is fixedly connected with one end of the first ball screw (712);
the hinged support translation device (72) comprises a second screw rod sliding block (721), a second ball screw rod (722) and a second bevel gear (723); the second screw rod sliding block (721) is sleeved on the second ball screw rod (722), is in threaded connection with the second ball screw rod (722) and is fixedly connected with the hinged support (50); the second ball screw (722) is rotatably connected with the fixed seat (20); the second bevel gear (723) is fixedly connected with one end of the second ball screw (722);
the first ball screw (712) and the second ball screw (722) have different rotation directions;
the intermediate transmission device (73) comprises a transmission rod (731) and two third bevel gears (732), the transmission rod (731) is rotatably connected with the fixed seat (20), the two third bevel gears (732) are respectively fixedly connected with two ends of the transmission rod (731), one of the third bevel gears is meshed with the first bevel gear (713), and the other third bevel gear is meshed with the second bevel gear (723).
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| CN202010397693.8A CN111380754A (en) | 2020-05-12 | 2020-05-12 | Slot type bias voltage experimental device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152891A (en) * | 2021-04-27 | 2021-07-23 | 中天建设集团有限公司 | Novel combined type high and large formwork steel platform |
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