Net rack deflection measuring device

Abstract

The utility model discloses a net rack deflection measuring device, which comprises a mounting rack, two rolling fixing mechanisms, a support rod and a detection mechanism, the two rolling fixing mechanisms are symmetrically arranged at the two ends of the top side of the mounting rack, each rolling fixing mechanism comprises a fixed roller and a movable roller, and the fixed rollers are arranged on the support rod. The fixed roller and the moving roller are symmetrically arranged in the mounting frame up and down, the moving roller can move up and down along the mounting frame, the fixed roller and the moving roller are matched with each other to clamp the net rack, a sliding groove is formed in the top side of the mounting frame, the supporting rod is of an L-shaped structure, the vertical section of the supporting rod is arranged in the sliding groove through a sliding driving mechanism, and a moving groove is formed in the transverse section of the supporting rod; a moving driving mechanism is arranged in the moving groove, and the detection mechanism is arranged on the moving driving mechanism. The device can improve the measurement accuracy and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of net rack measurement, specifically is a net rack deflection measuring device. BACKGROUND

[0002] The net rack deflection refers to the deformation of the net rack under the load, and the deformation is inevitable in the use of the net rack. The deflection can be measured to evaluate the stability and carrying capacity of the net rack. The material type, structure form and support mode of the net rack will affect the deflection resistance, so the deflection of the steel pipe constituting the net rack before construction is the main factor of the net rack deflection, so the deflection of the steel pipe needs to be measured. However, the existing steel pipe deflection measuring device usually fixes the two ends of the steel pipe during use. This fixing method causes the two ends of the steel pipe to be unable to move when bending, resulting in a certain error in deflection measurement. At the same time, the position of the load cannot be adjusted when the load is applied, which is not convenient for users to use. UTILITY MODEL CONTENTS

[0003] The utility model aims at overcoming the above-mentioned prior art defects, and provides a net rack deflection measuring device which improves the measurement accuracy and is convenient to use.

[0004] The utility model is realized through the following technical schemes: a net rack deflection measuring device, comprising a mounting frame, a rolling fixing mechanism, a support rod and a detection mechanism.

[0005] The rolling fixing mechanism is provided with two, and the two rolling fixing mechanisms are symmetrically arranged at the top side of the mounting frame. Each rolling fixing mechanism comprises a fixed roller and a movable roller, and the fixed roller and the movable roller are symmetrically arranged in the mounting frame. The movable roller can move up and down along the mounting frame, and the fixed roller and the movable roller cooperate to clamp the net rack.

[0006] The top side of the mounting frame is provided with a sliding groove, and the sliding groove is distributed along the length direction of the mounting frame.

[0007] The support rod is in L-shaped structure, the vertical section of the support rod is arranged in the sliding groove through the sliding drive mechanism, and the sliding drive mechanism drives the support rod to move back and forth along the sliding groove.

[0008] The horizontal section of the support rod is provided with a moving groove, and the moving groove is provided with a moving drive mechanism. The detection mechanism is arranged on the moving drive mechanism, and the moving drive mechanism drives the detection mechanism to move back and forth along the moving groove.

[0009] Further, the detection mechanism comprises a plurality of electric push rods, a mounting disc, a pressure sensor and a pressing disc, the output end of the plurality of electric push rods is provided with the mounting disc, the mounting disc is provided with the pressing disc, the pressure sensor is arranged between the mounting disc and the pressing disc, and the pressing disc is provided with a rubber pad.

[0010] Further, the detection mechanism comprises a plurality of electric push rods, a mounting disc, a pressure sensor and a pressing disc, the output end of the plurality of electric push rods is provided with the mounting disc, the mounting disc is provided with the pressing disc, the pressure sensor is arranged between the mounting disc and the pressing disc, and the pressing disc is provided with a rubber pad.

[0011] Further, the detection mechanism comprises a plurality of electric push rods, a mounting disc, a pressure sensor and a pressing disc, the output end of the plurality of electric push rods is provided with the mounting disc, the mounting disc is provided with the pressing disc, the pressure sensor is arranged between the mounting disc and the pressing disc, and the pressing disc is provided with a rubber pad.

[0012] Further, the detection mechanism comprises a plurality of electric push rods, a mounting disc, a pressure sensor and a pressing disc, the output end of the plurality of electric push rods is provided with the mounting disc, the mounting disc is provided with the pressing disc, the pressure sensor is arranged between the mounting disc and the pressing disc, and the pressing disc is provided with a rubber pad.

[0013] Further, the detection mechanism comprises a plurality of electric push rods, a mounting disc, a pressure sensor and a pressing disc, the output end of the plurality of electric push rods is provided with the mounting disc, the mounting disc is provided with the pressing disc, the pressure sensor is arranged between the mounting disc and the pressing disc, and the pressing disc is provided with a rubber pad.

[0014] Further, the detection mechanism comprises a plurality of electric push rods, a mounting disc, a pressure sensor and a pressing disc, the output end of the plurality of electric push rods is provided with the mounting disc, the mounting disc is provided with the pressing disc, the pressure sensor is arranged between the mounting disc and the pressing disc, and the pressing disc is provided with a rubber pad.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The both ends of the net rack are clamped and fixed through the rolling fixing mechanism, when the net rack is bent to the middle under the applied load, the fixed roller and the movable roller of the rolling fixing mechanism can rotate, so that the both ends of the net rack move to the middle, so that the net rack does not generate tension, and the accuracy of deflection measurement is improved.

[0017] 2. The vertical section of the support frame is arranged in the sliding groove through the sliding drive mechanism, the detection mechanism is arranged on the horizontal section of the support frame, the support frame is driven to move in the sliding groove through the sliding drive mechanism, so that the position of the detection mechanism can be adjusted, the position of the applied load is conveniently adjusted, and the utility is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a structural schematic view of the utility model mounting frame;

[0020] Figure 3 It is a structural schematic view of the utility model rolling fixing mechanism;

[0021] Figure 4 It is a structural schematic view of the utility model support rod;

[0022] Figure 5 It is a structural schematic view of the utility model detection mechanism.

[0023] The figure mark explanation: 1-mounting frame, 2-rolling fixing mechanism, 3-support rod, 4-detection mechanism, 5-fixed roller, 6-moving roller, 7-mounting frame, 8-sliding slot, 9-sliding drive mechanism, 10-moving slot, 11-moving drive mechanism, 12-multisection electric push rod, 13-mounting disc, 14-pressure sensor, 15-pressing disc, 16-rubber pad, 17-lifting plate, 18-hydraulic self-locking push rod, 19-lifting groove, 20-rotating seat, 21-rotating shaft, 22-fixed plate, 23-rotating shaft, 24-screw rod, 25-control motor, 26-slow motor, 27-threaded rod, 28-sliding block, 29-blocking ring, 30-soft pad, 31-support leg, 32-anti-skid pad, 33-controller. DETAILED DESCRIPTION

[0024] Figures 1 to 5 It is a structural schematic view of the utility model net rack deflection measuring device embodiment, including mounting frame 1, rolling fixing mechanism 2, support rod 3, detection mechanism 4.

[0025] Rolling fixing mechanism 2 is provided with two, two rolling fixing mechanisms 2 are symmetrically set in the top side both ends of mounting frame 1, and each rolling fixing mechanism 2 includes fixed roller 5 and moving roller 6, and fixed roller 5 and moving roller 6 are symmetrically set in mounting frame 7 upside down, and moving roller 6 can move up and down along mounting frame 7, and fixed roller 5 and moving roller 6 are cooperated to hold net rack.

[0026] The top side of mounting frame 1 is provided with sliding slot 8, and sliding slot 8 is distributed along the length direction of mounting frame 1.

[0027] Support rod 3 is L-shaped structure, and the vertical section of support rod 3 is set in sliding slot 8 by sliding drive mechanism 9, and sliding drive mechanism 9 drives support rod 3 to move back and forth along sliding slot 8.

[0028] The transverse section of the support rod 3 is provided with a moving groove 10, a moving driving mechanism 11 is arranged in the moving groove 10, the detection mechanism 4 is arranged on the moving driving mechanism 11, and the moving driving mechanism 11 drives the detection mechanism 4 to move back and forth along the moving groove 10.

[0029] The detection mechanism 4 comprises a plurality of electric push rods 12, a mounting disc 13, a pressure sensor 14 and a pressing disc 15, the output end of the plurality of electric push rods 12 is provided with the mounting disc 13, the mounting disc 13 is provided with the pressing disc 15, the pressure sensor 14 is arranged between the mounting disc 13 and the pressing disc 15, and the pressing disc 15 is provided with a rubber pad 16.

[0030] Further comprising a lifting plate 17 and a hydraulic self-locking push rod 18, the inner walls of the two sides of the mounting frame 7 are respectively provided with lifting grooves 19, the end of the lifting plate 17 is arranged in the lifting groove 19, the hydraulic self-locking push rod 18 is arranged on the top side of the mounting frame 1, the output end of the hydraulic self-locking push rod 18 is connected with the bottom wall of the lifting plate 17, the top side of the lifting plate 17 is provided with rotating seats 20, the ends of the moving rollers 6 are connected with the rotating seats 20 through rotating shafts 21, the inner top side of the mounting frame 7 is provided with a fixed plate 22, and the ends of the fixed rollers 5 are connected with the fixed plate 22 through rotating shafts 23.

[0031] The sliding driving mechanism 9 comprises a screw rod 24 and a control motor 25, the screw rod 24 is rotatably arranged in the sliding groove 8, the output end of the control motor 25 is connected with the screw rod 24, and the bottom end of the vertical section of the support rod 3 is threadedly sleeved on the screw rod 24.

[0032] The moving driving mechanism 11 comprises a slow-speed motor 26, a threaded rod 27 and a sliding block 28, the threaded rod 27 is rotatably arranged in the moving groove 10, the output end of the slow-speed motor 26 is connected with the threaded rod 27, the sliding block 28 is arranged on the threaded rod 27, and the sliding block 28 is fixed with the plurality of electric push rods 12.

[0033] The two ends of the fixed rollers 5 and the two ends of the moving rollers 6 are respectively provided with blocking rings 29, and the outer periphery of the fixed rollers 5 and the outer periphery of the moving rollers 6 are respectively provided with soft pads 30.

[0034] The bottom side of the mounting frame 1 is provided with support legs 31, and the bottom end of each support leg 31 is provided with an anti-skid pad 32.

[0035] The bottom side of the mounting frame 1 is provided with a controller 33, and the controller 33 is electrically connected with the plurality of electric push rods 12, the pressure sensor 14, the hydraulic self-locking push rod 18, the control motor 25 and the slow-speed motor 26.

[0036] The utility model discloses a slow -speed motor 26 drives screw rod 27 rotates, and screw rod 27 drives sliding block 28 to remove, and sliding block 28 drives the movement of multisection electric push rod 12, simultaneously, multisection electric push rod 12 drives pressing disc 15 to remove downwards, and pressing disc 15 applies load to net rack, at this time, obtains the pressure value of pressure sensor 14, and the force of applying load is obtained through the pressure value of pressure sensor 14, to judge the deflection of net rack, and the measurement of deflection is completed.

[0037] Because the both ends of net rack are clamped and fixed between fixed roller 5 and moving roller 6, and fixed roller 5 and moving roller 6 can rotate, in the process that multisection electric push rod 12 drives pressing disc 15 to apply load to net rack, net rack bends to the middle, and the position of the both ends of net rack clamped and fixed will move to the middle, compared with the prior art that the both ends of net rack are directly fixed, when net rack bends to the middle, its both sides cannot move to the middle, so that tension will affect the deflection measurement of steel pipe, the utility model cooperates with fixed roller 5 and moving roller 6 that can rotate and clamps the side of net rack, when net rack is subjected to the load applied, fixed roller 5 and moving roller 6 can rotate, so that the both ends of net rack move to the middle, so that tension will not be produced, and the accuracy of deflection measurement is improved.

[0038] The above detailed description is directed to the specific description of the feasible embodiment of the utility model, and the embodiment is not used to limit the patent range of the utility model, and equivalent implementation or change, which is not deviated from the utility model, should be included in the patent range of the case.

Claims

1. A device for measuring the deflection of a space frame, characterized in that: Includes mounting bracket, rolling fixing mechanism, support rod, and testing mechanism; Two rolling fixing mechanisms are provided, and the two rolling fixing mechanisms are symmetrically arranged at both ends of the top side of the mounting frame. Each rolling fixing mechanism includes a fixed roller and a movable roller. The fixed roller and the movable roller are symmetrically arranged in the mounting frame, and the movable roller can move up and down along the mounting frame. The fixed roller and the movable roller cooperate with each other to clamp the mesh frame. The top side of the mounting bracket is provided with a sliding groove, which is distributed along the length direction of the mounting bracket; The support rod has an L-shaped structure, and the vertical section of the support rod is set in the slide groove through a sliding drive mechanism. The sliding drive mechanism drives the support rod to move back and forth along the slide groove. The support rod has a moving groove in its horizontal section, and a moving drive mechanism is provided in the moving groove. The detection mechanism is mounted on the moving drive mechanism, and the moving drive mechanism drives the detection mechanism to move back and forth along the moving groove.

2. The space frame deflection measuring device according to claim 1, characterized in that: The detection mechanism includes a multi-section electric push rod, a mounting plate, a pressure sensor, and a pressing plate. The mounting plate is provided at the output end of the multi-section electric push rod, and the pressing plate is provided on the mounting plate. The pressure sensor is provided between the mounting plate and the pressing plate, and a rubber pad is provided on the pressing plate.

3. The space frame deflection measuring device according to claim 1, characterized in that: It also includes a lifting plate and a hydraulic self-locking push rod. The inner walls on both sides of the mounting frame are respectively provided with lifting grooves. The end of the lifting plate is set in the lifting groove. The hydraulic self-locking push rod is set on the top side of the mounting frame. The output end of the hydraulic self-locking push rod is connected to the bottom wall of the lifting plate. Rotating seats are provided at both ends of the top side of the lifting plate. The end of the moving roller is connected to the rotating seat through a rotating shaft. A fixed plate is provided on the inner top side of the mounting frame. The end of the fixed roller is connected to the fixed plate through a rotating shaft.

4. The space frame deflection measuring device according to claim 1, characterized in that: The sliding drive mechanism includes a lead screw and a control motor. The lead screw is rotatably disposed in the slide groove. The output end of the control motor is connected to the lead screw. The bottom end of the vertical section of the support rod is threaded onto the lead screw.

5. The space frame deflection measuring device according to claim 2, characterized in that: The moving drive mechanism includes a slow-speed motor, a threaded rod, and a slider. The threaded rod is rotatably disposed in the moving groove. The output end of the slow-speed motor is connected to the threaded rod. The slider is disposed on the threaded rod and is fixed to the multi-section electric push rod.

6. The space frame deflection measuring device according to claim 3, characterized in that: The fixed roller and the movable roller are respectively provided with blocking rings at both ends, and soft pads are respectively provided on the outer periphery of the fixed roller and the outer periphery of the movable roller.

7. The space frame deflection measuring device according to claim 6, characterized in that: The mounting bracket has support legs at the four corners of its bottom side, and the bottom of each support leg has an anti-slip pad.

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