CN212779834U - Non-gravity-loaded rod piece bending rigidity measuring device - Google Patents
Non-gravity-loaded rod piece bending rigidity measuring device Download PDFInfo
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- CN212779834U CN212779834U CN202022202336.XU CN202022202336U CN212779834U CN 212779834 U CN212779834 U CN 212779834U CN 202022202336 U CN202022202336 U CN 202022202336U CN 212779834 U CN212779834 U CN 212779834U
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Abstract
The utility model belongs to member bending stiffness measures the field, concretely relates to member bending stiffness measuring device of non-gravity load. The utility model provides a non-gravity load's member bending stiffness measuring device, includes the host computer, still includes: a support structure for supporting the rod; the measuring structure is arranged on the supporting frame structure and is in communication connection with the upper computer; a heavy load application device mounted on the support structure; the support structure comprises: a base placed on the ground; the sliding groove is a groove formed on the bottom surface; and the two sliding support seats are arranged at two ends of the base and are in sliding connection with the base. This application applys the device through the heavy load and applys the heavy load for the member, has abandoned the conventionality through applying the heavy object as the mode of heavy load to the member that awaits measuring for when measuring the bending rigidity measurement of member, no longer need place the level with measuring device, only need guarantee that the power that the member received is perpendicular can with the base, so can save a large amount of time, measured result is more accurate moreover.
Description
Technical Field
The utility model belongs to member bending stiffness measures the field, concretely relates to member bending stiffness measuring device of non-gravity load.
Background
The deflection is the linear displacement of the rod axis in the direction vertical to the axis or the linear displacement of the middle surface of the plate shell in the direction vertical to the middle surface when the stress or the non-uniform temperature changes, and is an important index of the deformation of structural members in the field of civil engineering. The deflection observation of the building comprises deflection observation of a building foundation, a building main body and an independent structure. For high-rise buildings, when subjected to a large concentrated load over a small area, this can lead to the building sinking, and uneven sinking will lead to the building tilting, bending of the partial elements and cracking. For a bridge structure, the comprehensive indexes reflecting the overall performance of the structure are deflection and linearity, and the guarantee of the reliability of the deflection and deformation test results is an important precondition for objectively evaluating the performance of the structure.
Most of the existing research devices are only limited to the bending performance research of large rods under the simple supporting condition. When the flexural performance of the rod piece is researched, two ends of the rod piece to be researched are firstly lapped on the support to serve as simple support constraints. The application of the load is then performed by the hydraulic system. And is provided with a corresponding displacement measuring system to measure deflection.
In the aspect of research on the bending performance of the small rod piece, the small rod piece needs less applied load and has no corresponding displacement measurement system, so that the experimental research on the bending performance of the small rod piece is less. The existing research device cannot research the bending performance of the small rod piece due to the self limitation.
The existing measuring device for the small rod usually uses a heavy load hanging mode to apply heavy load to the rod for measurement, so that if the measurement result is required to be accurate, the arrangement level of the measuring device needs to be ensured.
SUMMERY OF THE UTILITY MODEL
To the technical problem that above-mentioned exists, the utility model provides a member bending rigidity measuring device of non-gravity load.
In order to achieve the above object, the utility model provides an adopted technical scheme is, a member bending rigidity measuring device of non-gravity load, including the host computer, still include: a support structure for supporting the rod; the measuring structure is arranged on the supporting frame structure and is in communication connection with the upper computer; a heavy load application device mounted on the support structure; the support structure comprises: a base placed on the ground; the sliding groove is a groove formed on the bottom surface; the two sliding support seats are arranged at the two ends of the base and are in sliding connection with the base; two support columns are arranged and are respectively arranged at two ends of the base; one end of the supporting column is fixedly connected with the base; the rails are arranged on the support columns, and two ends of each rail are fixedly connected with the two support columns respectively; the ball screw is arranged on the support columns, one end of the ball screw is rotatably connected with one support column, and the other end of the ball screw penetrates through the other support column and is rotatably connected with the other support column and parallel to the track; and the sliding block is arranged on the bottom surface of the sliding support seat, inserted into the sliding groove and connected with the sliding groove in a sliding manner.
Preferably, the measurement structure includes: the infrared transmitting plate is vertically arranged on the base, fixedly connected with the base and electrically connected with the upper computer; one end of the infrared receiving plate is fixedly connected with a nut of the ball screw, and the other end of the infrared receiving plate is sleeved on the rail, is connected with the rail in a sliding mode and is in communication connection with an upper computer.
Preferably, the free end of the supporting seat is provided with a V-shaped groove; the tip of the V-shaped groove is close to the connecting end of the supporting seat and the base; the tip of the V-shaped groove is positioned on the central line of the supporting seat; and an anti-skid structure is arranged on the side edge of the V-shaped groove.
Preferably, the heavy load applying apparatus includes: the fixed pulley is arranged on the base and is rotationally connected with the base, and the tangent line of the fixed pulley and the tip end of the V-shaped groove are positioned on the same plane; the connecting rod is arranged on the side surface of the base, and one end of the connecting rod is fixedly connected with the base; the rope retracting structure is arranged at the other end of the connecting rod and is rotationally connected with the connecting rod; one end of the primary connecting rope penetrates through the fixed pulley, is connected with the fixed pulley in a sliding manner and is connected with the rod piece; one end of the tension meter is fixedly connected with the other end of the primary connecting rope; and one end of the second-stage connecting rope is wound on the rope winding structure, and the other end of the second-stage connecting rope is fixedly connected with the other end of the tension meter.
Preferably, the rope winding structure comprises: the rope take-up disc is rotatably connected with the connecting rod; the limiting cover is of a cavity structure, is sleeved on the rope retracting disc and is fixedly connected with the connecting rod; the limiting cover is provided with a through hole for the secondary connecting rope to pass through; one end of the transmission rod is arranged on one surface of the rope take-up disc far away from the connecting rod and is fixedly connected with the rope take-up disc; the handle is sleeved on the other end of the transmission rod and is connected with the transmission rod in a sliding manner; and the limiting cylinder is sleeved on the transmission rod, and one end of the limiting cylinder is fixedly connected with the limiting cover.
Preferably, the other end of the limiting cylinder is provided with a first limiting tooth; and the other ends of the handle and the transmission rod are provided with second limiting teeth matched with the first limiting teeth.
The utility model has the advantages that: this application applys the device through the heavy load and applys the heavy load for the member, has abandoned the conventionality through applying the heavy object as the mode of heavy load to the member that awaits measuring for when measuring the bending rigidity measurement of member, no longer need place the level with measuring device, only need guarantee that the power that the member received is perpendicular can with the base, so can save a large amount of time, measured result is more accurate moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a schematic structural diagram of a bending rigidity measuring device for a non-gravity-loaded rod
FIG. 2 is an enlarged schematic view of a rope retracting structure
FIG. 3 is an information transmission diagram of the upper computer, the motor and the measuring structure
Reference numerals:
1-base, 2-supporting base, 3-V-shaped groove, 4-supporting frame, 5-track, 6-infrared ray receiving plate, 7-infrared ray transmitting plate, 8-ball screw, 9-fixed pulley, 10-primary connecting rope, 11-tension meter, 12-secondary connecting rope, 13-handle, 14-limiting barrel, 15-limiting cover, 16-rope collecting disc, 17-connecting rod, 18-transmission rod, 19-first limiting tooth, 20-second limiting tooth, 21-upper computer, 22-motor and 23-measuring structure.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
The utility model provides a non-gravity load's member bending rigidity measuring device, includes host computer 21, still includes: a support structure, a measuring structure 23 and a heavy load applying means. The support structure is used for supporting the rod. The support structure includes: base 1, sliding tray, slide support seat 2, support column, ball 8, track 5 and sliding block.
The base 1 is placed on the ground. The sliding groove is a groove arranged on the bottom surface. The two sliding support seats 2 are respectively installed at two ends of the base 1 and are connected with the base 1 in a sliding mode. The support column has two, installs respectively at the both ends of base 1, and the one end and the base 1 fixed connection of support column. Track 5 installs on the support column, and track 5's both ends respectively with two support column fixed connection. Ball 8 installs on the support column, and ball 8's one end and a support column rotate to be connected, and the other end passes another support column to rotate with another support column and be connected, be parallel with track 5 simultaneously. The sliding block is arranged on the bottom surface of the sliding support seat 2 and is inserted into the sliding groove to be in sliding connection with the sliding groove.
The free end of the supporting seat 2 is provided with a V-shaped groove. The tip of the V-shaped groove is close to the connecting end of the supporting seat 2 and the base 1. The tip of the V-shaped groove is positioned on the central line of the supporting seat 2. And an anti-skid structure is arranged on the side edge of the V-shaped groove.
In this application, sliding support seat 2 is used for supporting the member that receives measuring, and the V style of calligraphy recess 3 that opens on sliding support seat 2 for place the member, can be applicable to the member of various different diameters. Meanwhile, the anti-skid structure arranged in the V-shaped groove 3 can be anti-skid lines and anti-skid rubber pads. When measuring the member like this, can directly place the member in V style of calligraphy recess 3, the member just can automatic gliding suitable position, has received anti-skidding structure's fixed again moreover. Therefore, when heavy load is added, the rod piece can not rotate, the operation of fixing the rod piece is avoided, and meanwhile, the rod piece is very convenient to take down, so that a large amount of time is saved.
The measuring structure 23 is arranged on the structure of the support frame 4 and is in communication connection with the upper computer 21. The measurement structure 23 includes: an infrared ray emitting plate 7 and an infrared ray receiving plate 6. The infrared emission plate 7 is vertically arranged on the base 1, fixedly connected with the base 1 and electrically connected with the upper computer 21. One end of the infrared receiving plate 6 is fixedly connected with a nut of the ball screw 8, and the other end of the infrared receiving plate is sleeved on the track 5, is connected with the track 5 in a sliding mode and is in communication connection with the upper computer 21.
The displacement volume when measuring the member and receiving the heavy load in this application has adopted the mode of side projection to measure, sends infrared ray through infrared emission board 7, then is received the back by infrared ray receiving board 6, and wherein the part that does not have the light to pass is the position that this member belongs to the projection figure of the member that obtains is calculating the displacement volume of member through the projection image. The situation that various external factors influence the measurement result when the dial indicator is used for measurement conventionally is avoided.
The heavy load application device is mounted on the support structure. The heavy load applying apparatus includes: fixed pulley 9, connecting rod 17, receipts rope structure, primary connecting rope 10, tensiometer 11, and second grade connecting rope 12. The fixed pulley 9 is installed on the base 1 and is rotatably connected with the base 1, and the tangent line of the fixed pulley 9 and the tip end of the V-shaped groove are located on the same plane. The connecting rod 17 is arranged on the side surface of the base 1, and one end of the connecting rod is fixedly connected with the base 1. The rope winding structure is arranged at the other end of the connecting rod 17 and is rotatably connected with the connecting rod 17. One end of the first-stage connection passes through the fixed pulley 9, is connected with the fixed pulley 9 in a sliding way and is connected with the rod piece. One end of the tension meter 11 is fixedly connected with the other end of the primary connecting rope 10. One end of the second-stage connecting rope 12 is wound on the rope winding structure, and the other end of the second-stage connecting rope is fixedly connected with the other end of the tension meter 11.
Wherein, receipts rope structure includes: the rope reeling disc 16, the limit cover 15, the transmission rod 18, the handle 13 and the limit cylinder 14. The rope take-up disc 16 is rotatably connected with the connecting rod 17. The limiting cover 15 is of a cavity structure, is sleeved on the rope retracting disc 16 and is fixedly connected with the connecting rod 17. The limiting cover 15 is provided with a through hole for the second-stage connecting rope 12 to pass through. One end of the transmission rod 18 is installed on one surface of the rope take-up disc 16 far away from the connecting rod 17 and is fixedly connected with the rope take-up disc 16. The handle 13 is sleeved on the other end of the transmission rod 18 and is connected with the transmission rod 18 in a sliding mode. The limiting cylinder 14 is sleeved on the transmission rod 18, and one end of the limiting cylinder is fixedly connected with the limiting cover 15. The other end of the limiting cylinder 14 is provided with a first limiting tooth 19. The other end of the handle 13 and the transmission rod 18 is provided with a second limit tooth 20 which is matched with the first limit tooth 19. The cooperation of the first 19 and second 20 limit teeth makes it possible to fix the handle 13 after a certain heavy load of the bar, so that the heavy load of the bar is constant. The tension meter 11 can clearly know the magnitude of the external force applied to the current rod piece, so that the measurement is simpler.
This application adopts the heavy load to apply the device, has replaced the conventional mode as the heavy load through hanging the heavy object for when using, need not count whether level of measuring device's installation. Only the force of the rod piece is required to be ensured to be vertical to the base 1. The measuring structure 23 of the sample application can calculate the deflection of the rod from the side of the rod or the projection of the rod.
When using, the member that will await measuring now is placed in the V font recess of two supporting seats 2, and the member can receive falling on suitable position in the V font recess of self gravity, then is tied the one end of rope 10 on the member with the one-level connection. The handle 13 is pulled out, so that the second limiting tooth is separated from the first limiting tooth. Through rotating handle 13, drive receipts rope dish 16 and rotate, carry out to be connected the second grade and restrict 12 and pull up for tensiometer 11 is elongated, when drawing certain degree, pushes handle 13 into, makes No. two spacing teeth and a spacing tooth meshing, accomplishes the fixed of counter rod spare atress.
At the moment, the upper computer 21 controls the infrared transmitting plate 7 to emit infrared rays, the motor 22 drives the ball screw 8 to enable the outer infrared receiving plate 6 to move along the ball screw 8 and the track 5, the infrared rays emitted by the infrared transmitting plate 7 are received, a side projection drawing of the rod piece is formed on the upper computer 21, and the bending condition of the rod piece under the stress condition is calculated according to the projection drawing.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (6)
1. The utility model provides a non-gravity load's member bending rigidity measuring device, includes the host computer, its characterized in that still includes:
a support structure for supporting the rod;
the measuring structure is arranged on the supporting frame structure and is in communication connection with the upper computer;
a heavy load application device mounted on the support structure;
the support structure comprises:
a base placed on the ground;
the sliding groove is a groove formed on the bottom surface;
the two sliding support seats are arranged at the two ends of the base and are in sliding connection with the base;
two support columns are arranged and are respectively arranged at two ends of the base;
one end of the supporting column is fixedly connected with the base;
the rails are arranged on the support columns, and two ends of each rail are fixedly connected with the two support columns respectively;
the ball screw is arranged on the support columns, one end of the ball screw is rotatably connected with one support column, and the other end of the ball screw penetrates through the other support column and is rotatably connected with the other support column and parallel to the track;
and the sliding block is arranged on the bottom surface of the sliding support seat, inserted into the sliding groove and connected with the sliding groove in a sliding manner.
2. A non-gravity-loaded beam bending stiffness measuring device according to claim 1, wherein the measuring structure comprises:
the infrared transmitting plate is vertically arranged on the base, fixedly connected with the base and electrically connected with the upper computer;
one end of the infrared receiving plate is fixedly connected with a nut of the ball screw, and the other end of the infrared receiving plate is sleeved on the rail, is connected with the rail in a sliding mode and is in communication connection with an upper computer.
3. The apparatus of claim 1, wherein the free end of the support base is provided with a V-shaped groove; the tip of the V-shaped groove is close to the connecting end of the supporting seat and the base; the tip of the V-shaped groove is positioned on the central line of the supporting seat; and an anti-skid structure is arranged on the side edge of the V-shaped groove.
4. A non-gravity-loaded beam bending stiffness measuring apparatus according to claim 3, wherein the heavy load applying means comprises:
the fixed pulley is arranged on the base and is rotationally connected with the base, and the tangent line of the fixed pulley and the tip end of the V-shaped groove are positioned on the same plane;
the connecting rod is arranged on the side surface of the base, and one end of the connecting rod is fixedly connected with the base;
the rope retracting structure is arranged at the other end of the connecting rod and is rotationally connected with the connecting rod;
one end of the primary connecting rope penetrates through the fixed pulley, is connected with the fixed pulley in a sliding manner and is connected with the rod piece;
one end of the tension meter is fixedly connected with the other end of the primary connecting rope;
and one end of the second-stage connecting rope is wound on the rope winding structure, and the other end of the second-stage connecting rope is fixedly connected with the other end of the tension meter.
5. The apparatus as claimed in claim 4, wherein the rope-retracting structure comprises:
the rope take-up disc is rotatably connected with the connecting rod;
the limiting cover is of a cavity structure, is sleeved on the rope retracting disc and is fixedly connected with the connecting rod;
the limiting cover is provided with a through hole for the secondary connecting rope to pass through;
one end of the transmission rod is arranged on one surface of the rope take-up disc far away from the connecting rod and is fixedly connected with the rope take-up disc;
the handle is sleeved on the other end of the transmission rod and is connected with the transmission rod in a sliding manner;
and the limiting cylinder is sleeved on the transmission rod, and one end of the limiting cylinder is fixedly connected with the limiting cover.
6. The bending stiffness measuring device of a non-gravity-loaded rod piece according to claim 5, wherein the other end of the limiting cylinder is provided with a first limiting tooth; and the other ends of the handle and the transmission rod are provided with second limiting teeth matched with the first limiting teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022202336.XU CN212779834U (en) | 2020-09-30 | 2020-09-30 | Non-gravity-loaded rod piece bending rigidity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022202336.XU CN212779834U (en) | 2020-09-30 | 2020-09-30 | Non-gravity-loaded rod piece bending rigidity measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212779834U true CN212779834U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022202336.XU Active CN212779834U (en) | 2020-09-30 | 2020-09-30 | Non-gravity-loaded rod piece bending rigidity measuring device |
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| Country | Link |
|---|---|
| CN (1) | CN212779834U (en) |
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2020
- 2020-09-30 CN CN202022202336.XU patent/CN212779834U/en active Active
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