CN115963005A - Model beam loading test device capable of quickly adjusting loading point position - Google Patents
Model beam loading test device capable of quickly adjusting loading point position Download PDFInfo
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- CN115963005A CN115963005A CN202310078282.6A CN202310078282A CN115963005A CN 115963005 A CN115963005 A CN 115963005A CN 202310078282 A CN202310078282 A CN 202310078282A CN 115963005 A CN115963005 A CN 115963005A
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- distribution beam
- loading point
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a model beam loading test device capable of quickly adjusting loading point positions, which comprises a reaction frame, an actuator, a distribution beam and a plurality of loading point adjusting devices, wherein the reaction frame is provided with a plurality of loading point adjusting devices; the lower end of the actuator is fixedly connected with the middle part of the upper side surface of the distribution beam; the loading point adjusting device comprises two extension rods, two lifting devices, a pad beam and two sliding blocks; the beneficial technical effects of the invention are as follows: the utility model provides a model roof beam loading test device of ability quick adjustment loading point position, this scheme can effectively shorten experimental preparation time, improves test efficiency.
Description
Technical Field
The invention relates to a loading test technology for beam members, in particular to a model beam loading test device capable of quickly adjusting loading point positions.
Background
The prior art is when carrying out the load test to roof beam class component, generally can carry out a lot of experiments to a plurality of test pieces, need set up the loading point of different quantity and position when experimental at every turn, current load test device, its actuator, distribution beam and pad roof beam are independent parts usually, and no restraint structure each other, during experimental preparation, generally put the pad roof beam according to the loading point position earlier, then put the distribution beam again, and the problem that exists is: according to the test purpose and the size difference of the test piece, the number and the position of the loading points of each test are different, the positions of the actuator, the distribution beam and the pad beam are required to be manually corrected before the test, the operation is very troublesome, particularly, when the number and the position of the pad beam are adjusted, the distribution beam needs to be moved away firstly, then the position of each pad beam is manually adjusted, the test preparation period is long, and the test efficiency is low.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides a model beam loading test device capable of quickly adjusting loading point positions, which is innovative in that: the device comprises a reaction frame, an actuator, a distribution beam and a plurality of loading point adjusting devices;
the reaction frame is of an H-shaped structure and is arranged on the ground;
the upper end of the actuator is fixedly connected with the middle part of the cross beam of the reaction frame, the lower end of the actuator is fixedly connected with the middle part of the upper side surface of the distribution beam, the axial direction of the distribution beam is vertical to the axial direction of the cross beam of the reaction frame, and the axial direction of the distribution beam is parallel to the horizontal plane;
the lower end of the distribution beam is provided with a flange plate, the side walls of the left side and the right side of the flange plate are respectively provided with a T-shaped groove, the axial direction of the T-shaped groove is parallel to the axial direction of the distribution beam, the upper side surface of the flange plate is provided with two guide grooves, the two guide grooves are respectively positioned on the two sides of a rib plate in the middle of the distribution beam, the axial direction of the guide grooves is parallel to the axial direction of the distribution beam, and the two guide grooves are symmetrical in position;
the loading point adjusting device comprises two extension rods, two lifting devices, a pad beam and two sliding blocks;
the lifting device consists of a shell, an annular electromagnet, a connecting shaft, an armature plate and two buffer springs; the shell is of a cylindrical structure, an end cover is arranged at the lower port of the shell, and a through hole is formed in the middle of the end cover; the annular electromagnet is arranged at the upper port of the shell; the upper part of the connecting shaft is sleeved in an inner hole of the annular electromagnet, and the lower part of the connecting shaft is sleeved in the through hole; the armature plate is coaxially arranged in the middle of the connecting shaft; the buffer springs are sleeved on the connecting shaft, one of the buffer springs is positioned between the annular electromagnet and the armature plate, and the other buffer spring is positioned between the armature plate and the end cover;
the sliding blocks are matched with the T-shaped grooves, and the two sliding blocks are respectively arranged in the two T-shaped grooves; the two lifting devices are respectively positioned at the left side and the right side of the flange plate, the positions of the lifting devices are opposite to the sliding block, and the sliding block is connected with the shell of the lifting device through a connecting plate; the upper ends of the connecting shafts are connected with the outer ends of the extension rods, and the two connecting shafts respectively correspond to the two extension rods; the inner end of the extension rod extends inwards to the upper side of the corresponding guide groove, and the lower side of the inner end of the extension rod is provided with a guide wheel which is matched with the corresponding guide groove; the lower ends of the connecting shafts are connected with the upper side face of the end part of the pad beam, and the two connecting shafts respectively correspond to the two ends of the pad beam;
when the annular electromagnet is electrified, the annular electromagnet can suck the armature plate upwards until the upper end face of the pad beam is contacted with the lower end face of the flange plate; when the annular electromagnet is not electrified, the pad beam is positioned at the lowest point under the action of gravity, a gap exists between the upper end surface of the pad beam and the lower end surface of the flange plate, the guide wheel is positioned in the guide groove, and the guide wheel can move along the guide groove;
during testing, a test piece is placed on the ground below the distribution beam, and the distribution beam is in contact with the upper end face of the test piece through the pad beam.
Compared with the prior art, the loading test device has two significant differences, namely, an actuator and a distribution beam are fixedly connected into an integrated structure, and a loading point adjusting device is arranged; the specific principle of the invention is as follows: the actuator and the distribution beam are of an integrated structure, the loading point adjusting device can hook the distribution beam through the extension rod, when a test piece is replaced, the actuator can drive the distribution beam and the loading point adjusting device to synchronously move, the operation is very convenient, the relative positions of the actuator and the distribution beam are not required to be corrected again after the test piece is replaced, the preparation time can be effectively reduced, when the position of the loading point is adjusted, only the annular electromagnet needs to be powered off, the loading point adjusting device can move axially along the distribution beam through the guide wheel and the sliding block, an operator pushes the loading point adjusting device to move to adjust the position of the loading point, after the loading point adjusting device is adjusted in place, the annular electromagnet is powered on, the pad beam can be tightly attached to the distribution beam under the action of the annular electromagnet, the displacement of the loading point is prevented, then the actuator drives the distribution beam and the loading point adjusting device to synchronously move to the surface of the test piece, when the number of the loading point needs to be changed, the number of the loading point adjusting device can be changed (the number of the loading point adjusting device slides in or slides out from the end part of the distribution beam), the number of the loading point adjusting device and the distribution beam can be adjusted by a large margin, and the operation efficiency of the loading point adjusting device can be improved, and the effective test.
The beneficial technical effects of the invention are as follows: the utility model provides a model roof beam loading test device of ability quick adjustment loading point position, this scheme can effectively shorten experimental preparation time, improves test efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the end face structure of a distributor beam;
FIG. 3 is a schematic structural view of the end face of the distribution beam when the loading point adjusting device is installed (at this time, the annular electromagnet is not electrified);
FIG. 4 is a schematic cross-sectional view of the lifting device;
FIG. 5 is a schematic view of the relative positions of the load point adjusting device and the distribution beam when the ring-shaped electromagnet is energized;
the names corresponding to each mark in the figure are respectively: the device comprises a reaction frame 1, an actuator 2, a distribution beam 3, a T-shaped groove 31, a guide groove 32, a loading point adjusting device 4, an extension rod 41, a lifting device 42, a pad beam 43, a sliding block 44, a guide wheel 45, a shell 421, an annular electromagnet 422, a connecting shaft 423, an armature plate 424, a buffer spring 425 and a test piece 5.
Detailed Description
The utility model provides a model roof beam loading test device of ability quick adjustment loading point position which innovation lies in: the device comprises a reaction frame 1, an actuator 2, a distribution beam 3 and a plurality of loading point adjusting devices 4;
the reaction frame 1 is of an H-shaped structure, and the reaction frame 1 is arranged on the ground;
the upper end of an actuator 2 is fixedly connected with the middle part of a cross beam of a reaction frame 1, the lower end of the actuator 2 is fixedly connected with the middle part of the upper side surface of a distribution beam 3, the axial direction of the distribution beam 3 is vertical to the axial direction of the cross beam of the reaction frame 1, and the axial direction of the distribution beam 3 is parallel to the horizontal plane;
the lower end of the distribution beam 3 is provided with a flange plate, the side walls of the left side and the right side of the flange plate are respectively provided with a T-shaped groove 31, the axial direction of the T-shaped groove 31 is parallel to the axial direction of the distribution beam 3, the upper side surface of the flange plate is provided with two guide grooves 32, the two guide grooves 32 are respectively positioned at two sides of a rib plate in the middle of the distribution beam 3, the axial direction of the guide grooves 32 is parallel to the axial direction of the distribution beam 3, and the positions of the two guide grooves 32 are symmetrical;
the loading point adjusting device 4 comprises two extension rods 41, two lifting devices 42, a pad beam 43 and two sliding blocks 44;
the lifting device 42 consists of a shell 421, an annular electromagnet 422, a connecting shaft 423, an armature disc 424 and two buffer springs 425; the shell 421 is a cylindrical structure, an end cover is arranged at the lower port of the shell 421, and a through hole is arranged in the middle of the end cover; the annular electromagnet 422 is arranged at the upper port of the shell 421; the upper part of the connecting shaft 423 is sleeved in an inner hole of the annular electromagnet 422, and the lower part of the connecting shaft 423 is sleeved in the through hole; the armature plate 424 is coaxially arranged in the middle of the connecting shaft 423; buffer springs 425 are sleeved on the connecting shaft 423, wherein one buffer spring 425 is positioned between the annular electromagnet 422 and the armature disc 424, and the other buffer spring 425 is positioned between the armature disc 424 and the end cover; the buffer spring 425 protects the armature disc 424 to prevent the armature disc 424 from colliding with the annular electromagnet 422 or the end cover when the power is turned on or off;
the sliding blocks 44 are matched with the T-shaped grooves 31, and the two sliding blocks 44 are respectively arranged in the two T-shaped grooves 31; the two lifting devices 42 are respectively positioned at the left side and the right side of the flange plate, the positions of the lifting devices 42 are opposite to the sliding blocks 44, and the sliding blocks 44 are connected with the shell 421 of the lifting devices 42 through connecting plates; the upper end of the connecting shaft 423 is connected with the outer end of the extension rod 41, and the two connecting shafts 423 correspond to the two extension rods 41 respectively; the inner end of the extension rod 41 extends inwards to the upper side of the corresponding guide groove 32, a guide wheel 45 is arranged on the lower side of the inner end of the extension rod 41, and the guide wheel 45 is matched with the corresponding guide groove 32; the lower ends of the connecting shafts 423 are connected with the upper side surface of the end part of the pad beam 43, and the two connecting shafts 423 correspond to two ends of the pad beam 43 respectively;
when the annular electromagnet 422 is electrified, the annular electromagnet 422 can suck the armature disc 424 upwards until the upper end face of the pad beam 43 is contacted with the lower end face of the flange plate; when the annular electromagnet 422 is not electrified, the pad beam 43 is positioned at the lowest point under the action of gravity, a gap exists between the upper end surface of the pad beam 43 and the lower end surface of the flange plate, the guide wheel 45 is positioned in the guide groove 32, and the guide wheel 45 can move along the guide groove 32;
during the test, the test piece is placed on the ground below the distribution beam 3, and the distribution beam 3 is in contact with the upper end face of the test piece through the pad beam 43.
Claims (1)
1. The utility model provides a model roof beam loading test device of ability quick adjustment loading point position which characterized in that: the device comprises a reaction frame (1), an actuator (2), a distribution beam (3) and a plurality of loading point adjusting devices (4);
the reaction frame (1) is of an H-shaped structure, and the reaction frame (1) is arranged on the ground;
the upper end of the actuator (2) is fixedly connected with the middle part of the cross beam of the reaction frame (1), the lower end of the actuator (2) is fixedly connected with the middle part of the upper side surface of the distribution beam (3), the axial direction of the distribution beam (3) is vertical to the axial direction of the cross beam of the reaction frame (1), and the axial direction of the distribution beam (3) is parallel to the horizontal plane;
the lower end of the distribution beam (3) is provided with a flange plate, the side walls of the left side and the right side of the flange plate are respectively provided with a T-shaped groove (31), the axial direction of the T-shaped groove (31) is parallel to the axial direction of the distribution beam (3), the upper side surface of the flange plate is provided with two guide grooves (32), the two guide grooves (32) are respectively positioned at the two sides of a rib plate in the middle of the distribution beam (3), the axial direction of the guide grooves (32) is parallel to the axial direction of the distribution beam (3), and the two guide grooves (32) are symmetrical in position;
the loading point adjusting device (4) comprises two extension rods (41), two lifting devices (42), a pad beam (43) and two sliding blocks (44);
the lifting device (42) consists of a shell (421), an annular electromagnet (422), a connecting shaft (423), an armature disc (424) and two buffer springs (425); the shell (421) is of a cylindrical structure, an end cover is arranged at the lower port of the shell (421), and a through hole is formed in the middle of the end cover; the annular electromagnet (422) is arranged at the upper port of the shell (421); the upper part of the connecting shaft (423) is sleeved in an inner hole of the annular electromagnet (422), and the lower part of the connecting shaft (423) is sleeved in the through hole; the armature plate (424) is coaxially arranged in the middle of the connecting shaft (423); the buffer springs (425) are sleeved on the connecting shaft (423), one buffer spring (425) is positioned between the annular electromagnet (422) and the armature disc (424), and the other buffer spring (425) is positioned between the armature disc (424) and the end cover;
the sliding blocks (44) are matched with the T-shaped grooves (31), and the two sliding blocks (44) are respectively arranged in the two T-shaped grooves (31); the two lifting devices (42) are respectively positioned at the left side and the right side of the flange plate, the positions of the lifting devices (42) are opposite to the sliding block (44), and the sliding block (44) is connected with a shell (421) of the lifting devices (42) through a connecting plate; the upper end of the connecting shaft (423) is connected with the outer end of the extension rod (41), and the two connecting shafts (423) correspond to the two extension rods (41) respectively; the inner end of the extension rod (41) extends inwards to the upper side of the corresponding guide groove (32), a guide wheel (45) is arranged on the lower side of the inner end of the extension rod (41), and the guide wheel (45) is matched with the corresponding guide groove (32); the lower ends of the connecting shafts (423) are connected with the upper side face of the end part of the pad beam (43), and the two connecting shafts (423) respectively correspond to the two ends of the pad beam (43);
when the annular electromagnet (422) is electrified, the annular electromagnet (422) can suck the armature disc (424) upwards until the upper end face of the pad beam (43) is contacted with the lower end face of the flange plate; when the annular electromagnet (422) is not electrified, the pad beam (43) is positioned at the lowest point under the action of gravity, a gap exists between the upper end surface of the pad beam (43) and the lower end surface of the flange plate, the guide wheel (45) is positioned in the guide groove (32), and the guide wheel (45) can move along the guide groove (32);
during testing, a test piece is placed on the ground below the distribution beam (3), and the distribution beam (3) is in contact with the upper end face of the test piece through the pad beam (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310078282.6A CN115963005A (en) | 2023-02-01 | 2023-02-01 | Model beam loading test device capable of quickly adjusting loading point position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310078282.6A CN115963005A (en) | 2023-02-01 | 2023-02-01 | Model beam loading test device capable of quickly adjusting loading point position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115963005A true CN115963005A (en) | 2023-04-14 |
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ID=87363479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310078282.6A Pending CN115963005A (en) | 2023-02-01 | 2023-02-01 | Model beam loading test device capable of quickly adjusting loading point position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115963005A (en) |
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2023
- 2023-02-01 CN CN202310078282.6A patent/CN115963005A/en active Pending
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