Multi-point intelligent loading device for arch structure system

Abstract

The application discloses a kind of arch structure system multipoint intelligent loading devices, relate to arch structure load test technical field, it includes two parallelly arranged arch structures, the lower portion of the arch structure is provided with loading assembly, the loading assembly includes motor, the output end of the motor is fixedly connected with carousel, and motor is used to drive carousel reciprocating rotation, and the circumferential direction of the carousel is fixedly connected with electric telescopic rod.By setting two parallel arch structures, and using electric telescopic rod to drive beam and roller to reciprocating rolling pressure on the top of arch structure, load test is carried out to two arch structures simultaneously, compared with prior art, only single arch structure test can be carried out once, can more truly simulate the situation that multiple arch structures in tunnel are stressed simultaneously, effectively solve the data deviation problem caused by single-point test, so as to more accurately screen out unqualified arch structure, improve the safety and stability of tunnel arch structure system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of arch structure load testing, more particularly, it relates to a multi-point intelligent loading device for arch structure system. BACKGROUND

[0002] The tunnel arch structure system is a supporting structure system that uses arch mechanical properties to bear stratum pressure and maintain tunnel stability. The core is to convert external loads (such as soil pressure, water pressure, etc.) into pressure along the arch axis direction through the geometric shape of the arch, and transmit it to the arch foot (i.e. the support point of the arch), so as to fully exert the compressive performance of the material and reduce the bending stress.

[0003] In order to make the arch structure more safe and stable during use, the arch structure will be batched for load testing before being put into use. Usually, the load testing device tests the load force of a single arch structure, and then records the load data of the arch structure one by one, and selects unqualified arch structures by observing the data.

[0004] In the prior art, the load testing device has the following problems when in use:

[0005] The common points of the patent application numbers CN201920595296.4 and CN201810261801.1 are that they can only test the load force of one arch structure at a time. However, usually multiple arch structures need to be installed in a tunnel to support the tunnel, and the spacing between multiple arch structures is different according to the environment, so the load force actually received by the arch structure is also different. Therefore, testing the load of a single arch structure cannot effectively simulate the load force received by the arch structure in the tunnel. On the contrary, it may also cause safety problems of the arch structure installed in the tunnel due to large deviation of the arch structure load test data. SUMMARY

[0006] In view of the deficiencies in the prior art, the purpose of the present application is to provide a multi-point intelligent loading device for arch structure system. To achieve the above purpose, the present application provides the following technical solutions:

[0007] The utility model provides a kind of arch structure system multipoint intelligent loading device, including two parallelly arranged arch structures, loading assembly is arranged below the arch structure, the loading assembly includes motor, fixedly connected with carousel on the output end of the motor, and motor is used to drive carousel reciprocating rotation, carousel is fixedly connected with electric telescopic rod in circumferential direction, electric telescopic rod is set between two arch structures, and electric telescopic rod reciprocates along the rotation track of carousel, the top of electric telescopic rod is fixedly connected with adapter block, two the top of arch structure is provided with crossbeam, the middle segment of crossbeam is fixedly connected with adapter block inside, the outside of crossbeam is also equipped with two rollers, the outer surface of roller is abutted to the top of arch structure, and electric telescopic rod swings to drive roller abutted to the top of arch structure, so arch structure is loaded and pressurized.

[0008] Preferably, the arch structure includes an arch body, the two ends of the arch body are fixedly connected with baffles, the baffles are used to limit the rollers, and the bottoms of the baffles are provided with support rods.

[0009] Preferably, a spacing adjusting assembly is arranged between the two arch structures, the spacing adjusting assembly includes two symmetrically arranged adjusting discs, the two adjusting discs are arranged below the two arch structures, two force rods are fixedly connected between the two adjusting discs, arc-shaped sliding grooves are formed in the two adjusting discs, limiting holes are formed at the two ends of the sliding grooves, limiting components are fixedly connected to the opposite surfaces of the two arch structures, respectively, the limiting components extend into the limiting holes, and the limiting components are used to limit the adjusting discs.

[0010] Preferably, the limiting components include hollow blocks, telescopic blocks are slidably connected inside the hollow blocks, the telescopic blocks are slidably connected inside the sliding grooves, elastic members are fixedly connected between the hollow blocks and the telescopic blocks, when the telescopic blocks are aligned with the limiting holes, the telescopic blocks are deeply inserted into the limiting holes by the tension of the elastic members.

[0011] Preferably, the adjusting assembly further includes a moving component, the moving component includes two parallelly arranged sleeve plates, vertical plates are fixedly connected to the opposite surfaces of the two sleeve plates, respectively, the hollow blocks and the abutting rods are fixedly connected with the vertical plates, the two hollow blocks are fixedly connected to the opposite surfaces of the two sleeve plates, respectively, the sleeve plates are fixedly connected with the bottoms of the support rods, moving blocks are fixedly connected to the bottoms of the two ends of the sleeve plates, respectively, sliding rails are arranged at the two ends of the bottoms of the two sleeve plates, respectively, and the moving blocks are slidably connected with the sliding rails.

[0012] Preferably, the two force rods are long and short in length, the distance between the two adjusting discs fixedly connected with the longer force rod is larger, the part with larger distance between the adjusting discs is used for driving the two sleeve plates to move synchronously in opposite directions, the distance between the adjusting discs fixedly connected with the shorter force rod is smaller, and the part with smaller distance between the adjusting discs is used for driving the two sleeve plates to move synchronously in opposite directions.

[0013] Preferably, the bottom of the motor is fixedly connected with a storage table, and the storage table is connected with an external workbench.

[0014] Preferably, the swinging of the electric telescopic rod is also used for extruding the force rod, and the extruded force rod drives the adjusting disc to swing through the cooperation of the sliding groove and the limiting part.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. The present application realizes the simultaneous multi-point load test on two arch structures by arranging two parallel arch structures and using the electric telescopic rod to drive the cross beam and the roller to reciprocatingly roll and press on the top of the arch structure, which can more truly simulate the situation that multiple arch structures in a tunnel are simultaneously subjected to multi-point force, effectively solves the data deviation problem caused by single-point test, and thus more accurately screens out unqualified arch structures, improving the safety and stability of the tunnel arch structure system.

[0017] 2. The present application can automatically adjust according to the actual spacing requirements between multiple arch structures in different tunnel environments through the spacing adjusting assembly including the adjusting disc, the force rod, the limiting part and the moving part, so that the loading device can adapt to multiple different working conditions, not only expanding the application range of the device, but also embodying the intelligent control level of the device, greatly improving the universality and practicality of the device compared with the situation that the existing technology cannot adapt to different arch structure spacing, and better meeting the diversified arch structure load test requirements in tunnel engineering construction, which is an optimization and improvement of the function and applicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the embodiment of the present application;

[0019] Figure 2 It is an adjusting disc structure schematic view of the embodiment of the present application;

[0020] Figure 3 It is an arch body structure schematic view in the embodiment of the present application;

[0021] Figure 4 It is a moving block structure schematic view in the embodiment of the present application;

[0022] Figure 5 It is a section view of the hollow block in the embodiment of the present application;

[0023] Figure 6 It is a schematic view of the connecting relationship between the abutting rod and the sliding groove in the embodiment of the present application;

[0024] Figure 7 It is a schematic view of the connecting relationship between the cross beam and the roller in the embodiment of the present application.

[0025] 1, motor; 2, turntable; 3, electric telescopic rod; 4, adapter block; 5, cross beam; 6, roller; 7, arch body; 8, support rod; 9, adjusting disc; 10, force rod; 11, sliding groove; 12, limiting hole; 13, hollow block; 14, telescopic block; 15, elastic member; 16, cover plate; 17, moving block; 18, sliding rail; 19, object table; 20, baffle; 112, abutting rod; 133, vertical plate. DETAILED DESCRIPTION

[0026] Reference Figures 1 to 7 The embodiment of the present application is further described.

[0027] The embodiment provides a kind of arch structure system multi-point intelligent loading device, including two parallelly arranged arch structures, the lower portion of the arch structure is provided with loading assembly, the loading assembly includes motor 1, the output end of the motor 1 is fixedly connected with turntable 2, and motor 1 is used to drive turntable 2 reciprocating rotation, the circumferential direction of the turntable 2 is fixedly connected with electric telescopic rod 3, the electric telescopic rod 3 is arranged between two arch structures, electric telescopic rod 3 reciprocating swing along with the rotation track of turntable 2, the top of the electric telescopic rod 3 is fixedly connected with adapter block 4, the top of two arch structures is provided with cross beam 5, the middle segment of the cross beam 5 is fixedly connected with the inside of adapter block 4, the outside of the cross beam 5 is also provided with two rollers 6, the outer surface of the roller 6 is abutted to the top of arch structure, the electric telescopic rod 3 swing drives roller 6 to be abutted to the top of arch structure, so as to load and press on arch structure;

[0028] In the embodiment, the arch structure can be multiple, specifically can be increased or reduced according to demand;It needs to be noted that when motor 1 drives turntable 2 reciprocating rotation, electric telescopic rod 3 reciprocating swing along with the rotation track of turntable 2, so as to convert the rotary motion of motor 1 into the swing motion of electric telescopic rod 3, to provide the conversion of motion form for subsequent pressurizing action;Through the swing of electric telescopic rod 3, adapter block 4 and the cross beam 5 and roller 6 connected with it are driven to move, finally realize the reciprocating rolling of roller 6 on the top of arch structure, load and press on arch structure, is the key transmission rod piece of connecting power source and pressure component.Meanwhile, through the setting of motor 1 and electric telescopic rod 3, arch structure is loaded and pressed automatically, to embody the intelligent control of the device.

[0029] With reference to Figure 1 and Figure 7 , the crossbeam 5 is arranged at the top of the two arch structures, and the section is fixedly connected with the adapter block 4. The crossbeam 5 drives the roller 6 to reciprocate on the top of the arch structure under the swing action of the electric telescopic rod 3, so as to press the arch structure, and the crossbeam 5 is a key component for transmitting the pressing force, which ensures that the two arch structures are subjected to uniform load force at the same time; the roller 6 is sleeved outside the crossbeam 5 and can roll on the top of the arch structure. When the crossbeam 5 is swung by the electric telescopic rod 3, the roller 6 reciprocates on the top of the arch structure, presses the surface of the arch structure, simulates the actual load condition of the arch structure in the tunnel, and more truly reflects the stress performance of the arch structure through the rolling and pressing of the roller 6.

[0030] In the application, the baffle is fixed at both ends of the arch body 7, which mainly functions to limit the movement range of the roller 6, prevent the roller 6 from deviating from the surface of the arch structure during the pressing process, ensure that the roller 6 stably reciprocates on the top of the arch structure, and thus ensure the accuracy and effectiveness of the pressing; and the supporting rod 8 is mainly used for supporting the entire arch structure, providing stable bottom support for the arch structure, ensuring that the arch structure maintains a stable position and posture during the pressing process, and at the same time, the supporting rod 8 also provides a connection basis for the subsequent spacing adjustment assembly. The two adjusting discs 9 are symmetrically arranged below the two arch structures and fixedly connected with the two force rods 10 therebetween. The adjusting disc 9 is provided with a circular arc-shaped sliding groove 11, and the two ends of the sliding groove 11 are provided with limiting holes 12. Through cooperation with the limiting part, the adjusting disc 9 can swing under the action of the force rod 10, so as to realize the adjustment of the spacing between the arch structures, so as to adapt to the actual spacing requirements between the arch structures in different tunnel environments.

[0031] With reference to Figure 1 , Figure 2 and Figure 3 , the spacing between the two corners of the two adjusting discs 9 is wide and narrow, which is used to adjust the spacing of the arch body 7, so the spacing between the two adjusting discs 9 can be adjusted according to the actual loading requirements of the arch body 7.

[0032] In the embodiment, the connecting relationship between the arch body 7 and the baffle 20 is plug-in, so as to facilitate the replacement operation of the arch body 7. For example, when the first two arch bodies 7 are experimentally completed, the second two arch bodies 7 need to be replaced. The two ends of the arch body 7 are pulled out from the inside of the baffle 20 to complete the disassembly of the arch body 7. When the new arch body 7 is installed, the two ends of the arch body 7 are inserted into the inside of the baffle 20 to complete the plug-in fixing of the arch body 7.

[0033] It should be noted that the two said arch structures are provided with a spacing adjusting assembly, the spacing adjusting assembly comprises two symmetrically arranged adjusting discs 9, two said adjusting discs 9 are arranged below the two arch structures, two force rods 10 are fixedly connected between the two said adjusting discs 9, the two adjusting discs 9 are both provided with a circular-arc-shaped sliding groove 11, limit holes 12 are formed at both ends of the sliding groove 11, and a limiting part is fixedly connected on the opposite surfaces of the two arch structures, the limiting part extends into the limit hole 12, and the limiting part is used for limiting the adjusting disc 9.

[0034] Specifically, the limiting part comprises a hollow block 13, a telescopic block 14 is slidably connected in the hollow block 13, the telescopic block 14 is slidably connected in the sliding groove 11, and an elastic piece 15 is fixedly connected between the hollow block 13 and the telescopic block 14.

[0035] In the application, the adjusting assembly further comprises a moving part, the moving part comprises two juxtaposed sleeve plates 16, a vertical plate 133 is fixedly connected on the opposite surfaces of the two sleeve plates 16, the hollow block 13 and the abutting rod 112 are fixedly connected with the vertical plate 133, the two hollow blocks 13 are fixedly connected on the opposite surfaces of the two sleeve plates 16, the sleeve plate 16 is fixedly connected with the bottom of the supporting rod 8, a moving block 17 is fixedly connected on the bottom of the two ends of the sleeve plate 16, a sliding rail 18 is arranged on the bottom of the two ends of the sleeve plate 16, the moving block 17 is slidably connected with the sliding rail 18, and two groups of object placing tables are arranged on the bottom of the sliding rail 18 in actual use, the object placing table is used for separating the sliding rail 18 from the ground, so that the stroke of the cross beam 5 and the roller 6 on the electric telescopic rod 3 is not limited in the process that the electric telescopic rod 3 extrudes the force rod 10, the object placing table needs to be arranged directly below the two sleeve plates 16, and a certain space needs to be reserved between the two object placing tables for swinging of the electric telescopic rod 3. Figure 5 and Figure 6Two round plates for limiting are arranged on the abutting rod 112, and the round plates are arranged to enable the abutting rod 112 to be in close sliding connection with the sliding groove 11. The two force rods 10 are arranged in a long and short length, the distance between the two adjusting discs 9 fixedly connected with the longer force rod 10 is large, the part with the large distance between the adjusting discs 9 is used to drive the two sleeve plates 16 to move in the opposite direction synchronously, the distance between the adjusting discs 9 fixedly connected with the shorter force rod 10 is small, and the part with the small distance between the adjusting discs 9 is used to drive the two sleeve plates 16 to move in the opposite direction synchronously. In addition, the bottom of the motor 1 is fixedly connected with a placement table 19, and the placement table 19 is connected with an external workbench. The swinging of the electric telescopic rod 3 is also used to extrude the force rod 10, and the force rod 10 subjected to extrusion enables the adjusting disc 9 to swing through the cooperation of the sliding groove 11 and the limiting part. In this way, through the arrangement of the motor 1 and the electric telescopic rod 3, the distance between the two arch bodies 7 can also be automatically adjusted to embody the intelligent control of the whole device.

[0036] Working principle:

[0037] Step one: when the load test is performed on the arch structure, first of all, the external switch is controlled to make the electric telescopic rod 3 retract, so that the roller 6 moves in the direction close to the arch body 7, until the surface of the roller 6 contacts and extrudes the outer edge of the arch body 7, and then the external control switch is started to enable the output end of the motor 1 to drive the rotating disc 2 to make the electric telescopic rod 3 swing back and forth between the two baffles 20, so as to further enable the cross beam 5 to drive the roller 6 to roll back and forth on the outer edge of the arch body 7 while pressing the whole arch body 7;

[0038] Step two: when the distance between the two arch bodies 7 is adjusted, first of all, the external control switch is started to make the electric telescopic rod 3 extend, so that the roller 6 is separated from the arch body 7, and then the external switch is started again to enable the output end of the motor 1 to drive the rotating disc 2 to rotate counterclockwise. In the rotating process of the rotating disc 2, the electric telescopic rod 3 contacts the longer force rod 10, and with the continuous rotation of the rotating disc 2, the electric telescopic rod 3 continuously extrudes the longer force rod 10, so as to further enable the adjusting disc 9 to swing along the track of the sliding groove 11. In the swinging process of the adjusting disc 9, the telescopic block 14 gradually separates from the limiting hole 12 close to the position of the shorter force rod 10, and at the same time, the sliding groove 11 slides on the surface of the abutting rod 112. At this time, the abutting rod 112 cooperates with the sliding groove 11 to control the swinging track of the adjusting disc 9, until the adjusting disc 9 swings to the position where the telescopic block 14 is connected with the limiting hole 12 beside the longer force rod 10.

[0039] Step three: the process of adjusting disc 9 counterclockwise swing as follows, two adjusting disc 9 through the limiting hole 12 extrude telescopic block 14, make telescopic block 14 extrude elastic piece 15, simultaneously extruded telescopic block 14 and limiting hole 12 separate, so that adjusting disc 9 is no longer be limited and begin to swing counterclockwise, adjusting disc 9 in swing synchronously push sleeve plate 16 to the opposite direction, so that sleeve plate 16 drive support rod 8 and arch body 7 synchronous movement to telescopic block 14 and longer force rod 10 side limiting hole 12 clamping, simultaneously arch body 7 and crossbeam 5 end contact, immediately make motor 1 output end pause rotation, if need to shorten the interval between two arch body 7, then through electric telescopic rod 3 drive turntable 2 clockwise rotation, and repeat step two and step three operation can.

[0040] The above only is the preferred embodiment of the present application, the protection scope of the present application is not only limited to the above-mentioned examples, all technical solutions under the idea of the present application belong to the protection scope of the present application. It should be pointed out that for ordinary skilled in the art, several improvements and refinements without departing from the principles of the present application under the premise, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A multi-point intelligent loading device for an arch structure system, characterized in that, The utility model provides an arch structure loading device, including two parallelly arranged arch structures, the lower part of arch structure is provided with loading assembly, loading assembly includes motor (1), the output of motor (1) is fixedly connected with carousel (2), and motor (1) is used for driving carousel (2) reciprocating rotation, the circumferential fixed connection of carousel (2) has motorized telescopic link (3), motorized telescopic link (3) is arranged between two arch structures, and the telescopic end of motorized telescopic link (3) is fixedly connected with the link block (4), two the top of arch structure is provided with crossbeam (5), the middle segment of crossbeam (5) is fixedly connected with the inside of link block (4), the outside of crossbeam (5) is also equipped with two rollers (6), the outer surface of roller (6) is in contact with the top of arch structure, and motorized telescopic link (3) swings to drive roller (6) and is in contact with the top of arch structure, and thus the loading pressure of arch structure is carried out.

2. The multi-point intelligent loading device for arch structure system according to claim 1, characterized in that, The arch structure includes an arch body (7), both ends of the arch body (7) are fixedly connected with a baffle (20), the baffle (20) is used for limiting the roller (6), and the bottom of the baffle (20) is provided with a supporting rod (8).

3. The multi-point intelligent loading device for arch structure system according to claim 2, characterized in that, A spacing adjusting assembly is arranged between the two arch structures, the spacing adjusting assembly includes two symmetrically arranged adjusting discs (9), the two adjusting discs (9) are arranged below the two arch structures, two force rods (10) are fixedly connected between the two adjusting discs (9), the two adjusting discs (9) are each provided with a circular-arc-shaped sliding groove (11), a stop rod (112) is slidably connected in the sliding groove (11), limiting holes (12) are respectively formed at both ends of the sliding groove (11), and limiting members are respectively fixedly connected to opposite surfaces of the two arch structures, the limiting members extend into the limiting holes (12), and the limiting members are used for limiting the adjusting discs (9).

4. The multi-point intelligent loading device for arch structure system according to claim 3, characterized in that, The limiting member includes a hollow block (13), a telescopic block (14) is slidably connected in the hollow block (13), the telescopic block (14) is slidably connected in the sliding groove (11), an elastic member (15) is fixedly connected between the hollow block (13) and the telescopic block (14), when the telescopic block (14) is aligned with the limiting hole (12), the telescopic block (14) is deepened into the limiting hole (12) by the tension of the elastic member (15) itself.

5. The multi-point intelligent loading device for arch structure system according to claim 4, characterized in that, The adjusting assembly further includes a moving member, the moving member includes two parallelly arranged sleeve plates (16), a vertical plate (133) is fixedly connected to each of opposite surfaces of the two sleeve plates (16), the hollow block (13) and the stop rod (112) are fixedly connected to the vertical plate (133), the two hollow blocks (13) are respectively fixedly connected to opposite surfaces of the two sleeve plates (16), the sleeve plates (16) are fixedly connected to the bottom of the supporting rod (8), moving blocks (17) are fixedly connected to the bottom of each of the two sleeve plates (16), the bottom of each of the two sleeve plates (16) is provided with a sliding rail (18), and the moving blocks (17) are slidably connected in the sliding rail (18).

6. The multi-point intelligent loading device for arch structure system according to claim 5, characterized in that, The lengths of the two force rods (10) are long and short, the distance between the two adjusting discs (9) fixedly connected with the longer force rod (10) is larger, the larger distance part between the adjusting discs (9) is used for driving the two sleeve plates (16) to move synchronously in opposite directions, the distance between the adjusting discs (9) fixedly connected with the shorter force rod (10) is smaller, and the smaller distance part between the adjusting discs (9) is used for driving the two sleeve plates (16) to move synchronously in opposite directions.

7. The multi-point intelligent loading device for arch structure system according to claim 6, characterized in that, The bottom of the motor (1) is fixedly connected with a storage table (19), and the storage table (19) is connected with an external workbench.

8. The multi-point intelligent loading device for arch structure system according to claim 7, characterized in that, The swinging of the electric telescopic rod (3) is also used for extruding the force rod (10), and the force rod (10) subjected to extrusion makes the adjusting disc (9) swing through the cooperation of the sliding groove (11) and the limiting part.

Images