Two-stage hydraulic tensioner testing device

Abstract

The utility model relates to the technical field of automatic testing, and particularly discloses a two-stage hydraulic tensioner testing device, which comprises a screw rod, an adjusting side rod, a force measuring sensor, a support frame and a tensioner body, the screw rod penetrates through the support frame, the adjusting side rod is fixedly connected with the screw rod and is sleeved on the outer surface wall of the screw rod, and the force measuring sensor is arranged on the outer surface wall of the screw rod. The tensioner body is arranged at the end, away from the adjusting side rod, of the screw rod, the multiple force measuring sensors are fixedly connected with the adjusting side rod and located at the upper end of the adjusting side rod. According to the tool, the perpendicularity between the direction of the stretching force applied to the screw by the stretcher body and the table top can be calculated and solved by utilizing the difference value between the symmetrically arranged force sensors, meanwhile, the relation between the tensile force and the oil pressure of the stretcher can be calibrated through the force sensors, and the tool is simple in structure, convenient to use and high in practicability. The device is suitable for testing and checking the strength and stress condition of the pull rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic test technical field especially relates to a two-stage hydraulic stretcher testing device. BACKGROUND

[0002] At present, the used stretcher testing tool mainly consists of the stretched screw rod and the bottom support disc, if the tensile force measurement of the stretcher is realized, the force measuring device needs to be composed of the universal testing machine or the through core type force transducer.

[0003] But in the prior art, the force measuring device is large in scale, the force measuring process is inconvenient, is relatively complicated, and can only measure the tensile force of the stretcher under ideal state, and the stretcher is broken due to the lateral force effect caused by structural defects. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a two-stage hydraulic stretcher testing device, which aims at solving the technical problems that the force measuring device is large in scale, the force measuring process is inconvenient, is relatively complicated, and can only measure the tensile force of the stretcher under ideal state, and the stretcher is broken due to the lateral force effect caused by structural defects.

[0005] In order to realize the above-mentioned purpose, a two-stage hydraulic stretcher testing device is adopted, which comprises a screw rod, an adjusting side rod, a force transducer, a support frame and a stretcher body, the screw rod penetrates the support frame, the adjusting side rod is fixedly connected with the screw rod and is sleeved on the outer wall of the screw rod, the stretcher body is arranged at one end of the screw rod away from the adjusting side rod, the number of the force transducers is multiple, and each force transducer is fixedly connected with the adjusting side rod and is located at the upper end of the adjusting side rod.

[0006] The support frame comprises a table top and supporting legs, the screw rod penetrates the table top, and the number of the supporting legs is multiple, and each supporting leg is fixedly connected with the table top and is located at the lower end of the table top.

[0007] The two-stage hydraulic stretcher testing device further comprises a high-pressure hose and a pneumatic hydraulic pump, one end of the high-pressure hose is communicated with the stretcher body, and the other end of the high-pressure hose is communicated with the pneumatic hydraulic pump.

[0008] The two-stage hydraulic stretcher testing device further comprises a data line and a data processing terminal, the number of the data lines is multiple, each data line is connected with the corresponding force transducer, and the data processing terminal is connected with the multiple data lines.

[0009] The beneficial effect of the two-stage hydraulic stretcher test device is that the size difference between the symmetrically arranged force sensors can be used to calculate the direction of the stretching force applied by the stretcher body to the screw rod and the perpendicularity of the table top, the force sensor can be used to simultaneously calibrate the relationship between the stretcher tension and the oil pressure, and the tooling structure is simple, convenient to use, and suitable for testing and checking the strength and stress of the pull rod. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0011] Figure 1 is a structural schematic view of a two-stage hydraulic stretcher test device of the present application.

[0012] 1-screw rod, 2-adjusting side rod, 3-force sensor, 4-stretcher body, 5-table top, 6-leg, 7-high pressure hose, 8-pneumatic hydraulic pump, 9-data line, 10-data processing terminal. DETAILED DESCRIPTION

[0013] Please refer to Figure 1 The utility model provides a two-stage hydraulic stretcher test device, including screw rod 1, adjusting side rod 2, force sensor 3, support frame and stretcher body 4, the screw rod 1 is through the support frame, adjusting side rod 2 with the fixed connection of screw rod 1 is set to the outer surface wall of screw rod 1, the stretcher body 4 is set up in the one end of screw rod 1 away from adjusting side rod 2, the quantity of force sensor 3 is multiple, and each force sensor 3 is fixedly connected with adjusting side rod 2 respectively and is located the upper end of adjusting side rod 2 respectively.

[0014] Further, the support frame includes a table top 5 and a leg 6, the screw rod 1 penetrates the table top 5, and the leg 6 includes a plurality of pieces, each of which is fixedly connected with the table top 5 and located at the lower end of the table top 5.

[0015] Further, the two-stage hydraulic stretcher test device further includes a high-pressure hose 7 and a pneumatic hydraulic pump 8, one end of the high-pressure hose 7 is in communication with the stretcher body 4, and the other end of the high-pressure hose 7 is in communication with the pneumatic hydraulic pump 8.

[0016] Further, the two-stage hydraulic stretcher test device further comprises a plurality of data lines 9, each of the data lines 9 is connected with a corresponding force sensor 3, and a data processing terminal 10 connected with the plurality of data lines 9.

[0017] In the embodiment, when the two-stage hydraulic stretcher test device is used, the stretcher body 4 is screwed into the upper end of the screw rod 1, a certain amount of free travel can be reserved between the bottom of the stretcher body 4 and the table top 5 according to needs, the adjusting side rods 2 are respectively spaced from the force sensors 3 to be equal, after installation, the pneumatic hydraulic pump 8 is connected to the stretcher body 4 through the high-pressure hose 7, the screw rod 1 is stretched upward, at this time, the adjusting side rods 2 move upward with the screw rod 1 to contact and press the force sensors 3, in this process, the radial force generated by the stretcher body 4 can be displayed through the imbalance of the values of the plurality of force sensors 3, and the data is transmitted to the data processing terminal 10 through the data lines 9, the data is collected and calculated, the force condition of the pull rod of the stretcher can be obtained, the two-stage hydraulic stretcher test device has simple structure, convenient use and maintenance, and the cost of detection of the force sensor 3 is lower.

[0018] The above only discloses a preferred embodiment of the utility model, of course, cannot limit the scope of the utility model, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the utility model claims still belong to the range covered by the utility model.

Claims

1. A two-stage hydraulic stretcher testing device, characterized in that, comprising a screw rod, an adjusting side rod, a force sensor, a support frame and a stretcher body, the screw rod penetrates through the support frame, the adjusting side rod is fixedly connected with the screw rod and is sleeved on the outer wall of the screw rod, the stretcher body is arranged at the end of the screw rod away from the adjusting side rod, and the number of the force sensors is plural, each force sensor is fixedly connected with the adjusting side rod and is located at the upper end of the adjusting side rod.

2. The two-stage hydraulic stretcher testing device according to claim 1, characterized in that, the support frame comprises a table top and supporting legs, the screw rod penetrates through the table top, and the number of the supporting legs is plural, each supporting leg is fixedly connected with the table top and is located at the lower end of the table top.

3. The two-stage hydraulic stretcher testing device according to claim 2, characterized in that, the two-stage hydraulic stretcher testing device further comprises a high-pressure hose and a pneumatic hydraulic pump, one end of the high-pressure hose is in communication with the stretcher body, and the other end of the high-pressure hose is in communication with the pneumatic hydraulic pump.

4. The two-stage hydraulic stretcher testing device according to claim 3, characterized in that, the two-stage hydraulic stretcher testing device further comprises a data line and a data processing terminal, the number of the data lines is plural, each data line is connected with a corresponding force sensor, and the data processing terminal is connected with the plural data lines.

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