A traction rope torque releaser periodic testing machine and testing method thereof

Abstract

The present invention discloses a periodic testing machine and experimental method for a torsion rope torque releaser, comprising a main frame, a hydraulic pump station, a hydraulic oil cylinder, a first connecting tool, a second connecting tool, a hydraulic motor, a transmission gear set, a torque sensor, a pressure sensor, a thrust bearing and a power supply, wherein the power supply is used to provide power for the torque sensor and the pressure sensor; the present invention completes the tensile test of the test workpiece by driving the oil cylinder to perform a retracting action by a hydraulic pump station. The hydraulic motor is driven by another hydraulic pump station, one end of the hydraulic motor is connected to the torque sensor, and the other end of the torque sensor is connected to the transmission gear set, and the gear set drives the gear shaft to rotate, thereby driving the connecting tool connected to the gear shaft to rotate, thereby realizing the torque test of the rotary connector, and the whole device is not only efficient but also accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of defense line construction equipment, and in particular to a traction rope torque releaser periodic testing machine and a testing method thereof. Background Art

[0002] At present, during the overhead wire laying construction, the guide or traction rope will generate a rotation torque that is harmful to the laying construction under tension. The rotation torque can cause multiple split wires to twist together, making the laying construction difficult. For this reason, a method of combining the release of the rotation torque and the anti-twist device of the walking board is usually adopted to prevent this situation from occurring. The method usually used to release the rotation torque is to add a rotating connector during the traction process of the wire to complete the torque release work.

[0003] Therefore, the reliability of the rotary connector is directly related to whether the wire can be smoothly deployed. Usually, the rotary connector needs to be tested for tension and torque before the wire is deployed. Only after the test is qualified can it be used for the deployment of the wire. The commonly used traction device test tooling has the problems of large size, heavy weight, low test efficiency, and inaccurate test values. Therefore, a traction rope torque releaser periodic test machine and its test method are developed to solve the problem of on-site testing. Summary of the invention

[0004] The purpose of the present invention is to provide a traction rope torque releaser periodic testing machine and a testing method thereof, which can solve the problems of low efficiency and inaccurate numerical values ​​in periodic testing of rotary connectors at construction sites.

[0005] The technical solution adopted by the present invention is:

[0006] A traction rope torque releaser periodic tester, comprising a main frame, a hydraulic pump station, a hydraulic oil cylinder, a first connection tooling, a second connection tooling, a hydraulic motor, a transmission gear set, a torque sensor, a pressure sensor, a thrust bearing and a power supply, wherein the power supply is used to provide power for the torque sensor and the pressure sensor;

[0007] The hydraulic cylinder is fixedly arranged on one side of the main frame, and the output shaft of the hydraulic cylinder is connected to one end of the first connecting fixture, the other end of the first connecting fixture and one end of the second connecting fixture are used to fix the experimental workpiece, and the other end of the second connecting fixture is fixedly arranged on the other side of the main frame through a thrust bearing;

[0008] The output shaft of the hydraulic motor is connected to the second connecting tool through a transmission gear set, and is used to transmit the rotational torque to the second connecting tool. The oil circuit output end of the hydraulic pump station is connected to the oil circuit input end of the hydraulic motor and the hydraulic cylinder respectively; the torque sensor is arranged at the end of the output shaft of the hydraulic motor, one end is connected to the output shaft of the hydraulic motor through a coupling, and the other end is connected to the transmission gear set. The pressure sensor is arranged in the oil circuit between the hydraulic cylinder and the hydraulic pump station, and also includes a hydraulic lock, which is fixedly arranged on the circuit of the hydraulic cylinder;

[0009] It also includes a throttle valve, which is arranged on the oil outlet line of the hydraulic pump station to adjust the oil flow.

[0010] A display is also included, wherein the input end of the display is respectively connected to the output end of the pressure sensor and the torque sensor for displaying the measured values.

[0011] It also includes a protective cover, which is fixedly and detachably arranged on the main frame.

[0012] The protective cover is hollowed out.

[0013] The connector tooling is a cylindrical rigid part, one end of which has a small diameter and is a connecting ear plate. A pin hole is axially and vertically opened on the connecting ear plate for pin shaft fitting and plugging and fixing; the other end has a large diameter and is a connecting part. A groove is opened on the end face of the connecting part to match the end of the experimental workpiece. An internal thread is arranged on the inner wall of the end of the groove, and a positioning threaded hole is also opened on the side wall.

[0014] There are two hydraulic pump stations, which are separately connected to the hydraulic motor and the hydraulic cylinder.

[0015] The thrust bearing uses a thrust bearing seat as a bearing body, which is connected to the main frame body through bolts. The thrust bearing is sleeved on the gear shaft, and the gear shaft is in direct contact with the thrust plate of the thrust bearing.

[0016] The present invention sets two connecting fixtures driven by a hydraulic cylinder and a hydraulic motor respectively on the main frame. The present invention realizes the test of the tension and torque of the rotary connector by designing a hydraulic cylinder and a hydraulic motor on the main frame. The specific test method is that a hydraulic pump station drives the cylinder to perform a retracting action to complete the tension test of the test workpiece. The hydraulic motor is driven by another hydraulic pump station. One end of the hydraulic motor is connected to a torque sensor. The other end of the torque sensor is connected to a transmission gear set. The gear set drives the gear shaft to rotate, thereby driving the connecting fixture connected to the gear shaft to rotate, and realizing the torque test of the rotary connector. The whole device is not only efficient, but also accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention without the protective cover;

[0020] Figure 3 A side view of the internal structure of the main frame of the present invention;

[0021] Figure 4 It is a schematic diagram of the structural position of the thrust bearing of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the connecting tooling of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 , 2 , 3, 4 and 5, the present invention includes a main frame 2, a hydraulic pump station 1, a hydraulic cylinder 5, a first connecting tool 11-2, a second connecting tool 11-1, a hydraulic motor 10, a transmission gear set 13, a torque sensor 15, a pressure sensor 7, a thrust bearing 14 and a power supply 16, wherein the power supply 16 is used to provide power for the torque sensor 15 and the pressure sensor 7;

[0025] The hydraulic cylinder 5 is fixedly arranged on one side of the main frame 2, and the output shaft of the hydraulic cylinder 5 is connected to one end of the first connecting fixture 11-2, and the other end of the first connecting fixture 11-2 and one end of the second connecting fixture 11-1 are used to fix the experimental workpiece 12, and the experimental workpiece 12 is the rotary connector to be tested, and the other end of the second connecting fixture 11-1 is fixedly arranged on the other side of the main frame 2 through a thrust bearing 14; the output shaft of the hydraulic motor 10 is connected to the second connecting fixture 11-1 through a transmission gear set 13, which is used to transmit rotational torque to the second connecting fixture 11-1, and the oil circuit output end of the hydraulic pump station 1 is respectively connected to the oil circuit input end of the hydraulic motor 10 and the hydraulic cylinder 5; the torque sensor 15 is arranged at the end of the output shaft of the hydraulic motor, one end of which is connected to the output shaft of the hydraulic motor through a coupling 19, and the other end is connected to the gear set 13. The pressure sensor 7 is arranged on the oil circuit between the hydraulic oil cylinder 5 and the hydraulic pump station 1, and also includes a hydraulic lock 6, a throttle valve 9, a protective cover 4 and a display 3. The input end of the display 3 is respectively connected to the output end of the pressure sensor and the torque sensor, and is used to display the measured values. The protective cover 4 is fixedly and detachably arranged on the main frame. The protective cover is hollowed out.

[0026] The functions of each part of the present invention in actual use are described in detail below: Hydraulic pump station: used to provide power source for hydraulic motor and hydraulic cylinder. Main frame: used as a carrier for periodic testing of rotary connector. Integrated display: used to display the tension value of the tested workpiece, the pressure value of the oil system, the torque value of the rotary connector, power supply display, etc.

[0027] Protective cover: used to prevent personal injury caused by the breakage of the connector during the test. Hydraulic cylinder: used to provide sufficient tension for the test piece. Hydraulic lock: used to block the hydraulic circuit and prevent the oil in the circuit from flowing, so as to ensure that the cylinder can remain stationary even when there is a certain load outside. Pressure sensor: used to monitor the pressure value of the pipeline system in real time, so as to calculate the real-time tension of the cylinder. Throttle valve: used to control the flow of the circuit. Hydraulic motor: used as the execution unit of the torque test module, which tests the torque value of the rotary connector through its own rotation. Connecting fixture: used to connect the workpiece to be tested in the entire test circuit. Transmission gear set: used to transmit the torque of the hydraulic motor to the rotary connector. Thrust bearing: used to withstand the axial load during the test, and participate in the torque test of the rotary connector, and used to accurately calculate the torque value of the rotary connector. Torque sensor: used to display and detect the torque value of the workpiece to be tested in real time. The power supply adopts lithium battery: used to provide power for the display, torque sensor, pressure sensor, etc.

[0028] The connector fixture is a cylindrical rigid part, one end of which has a small diameter and is a connecting ear plate 20. A pin hole is vertically provided on the connecting ear plate 20 for the pin shaft to fit and plug in and fix; the other end has a large diameter and is a connecting part. A groove 21 is provided on the end face of the connecting part to fit the end of the experimental workpiece. An internal thread is provided on the inner wall of the end of the groove 21, and a positioning threaded hole 22 is also provided on the side wall. The rotary connector connecting fixture of the present invention adopts a serialized design. Rotary connectors of different specifications correspond to connecting fixtures of different specifications. The connecting fixture and the oil cylinder are connected by threads. To prevent it from rotating, a positioning threaded hole is designed on the fixture for positioning the fixture. The ear plate and the rotary connector are designed on the other side to be plugged in by a pin shaft, and the installation is quick and convenient.

[0029] When the thrust bearing of the present invention is installed, Figure 4 As shown, the thrust bearing uses the thrust bearing seat 17 as a carrier, which is connected to the main frame 2 by bolts. The thrust bearing 14 is sleeved on the gear shaft of the connecting gear set 13, and the gear shaft is in direct contact with the thrust plate of the thrust bearing 14, ensuring that the thrust bearing can withstand the tension from the cylinder of the test rotary connector in real time, ensuring that its torque test results are more accurate, and the gear shaft and the connecting tooling are threadedly connected, the gear shaft is machined with external threads, and the end of the connecting tooling is machined with internal threads. The split design is easy to install.

[0030] There are two hydraulic pump stations, the left hydraulic pump station 1 and the right hydraulic pump station 8 are separately connected to the hydraulic motor and the hydraulic cylinder, respectively. Separate control can be achieved through separate connection, and the original manual control is used to further reduce the measurement error of the device.

[0031] The traction rope torque releaser periodic testing machine in the present invention utilizes a hydraulic pump station as a power unit to provide power to a hydraulic cylinder and a hydraulic motor respectively, wherein the function of the hydraulic cylinder is mainly to provide sufficient pulling force for the test, and the function of the hydraulic motor is to provide sufficient torque for the test, thereby realizing the testing of the pulling force and torque of the rotary connector.

[0032] The test machine uses an integrated display for data collection and statistics. During the test, the hydraulic cylinder is connected to the hydraulic cylinder to supply oil to realize the extension and retraction of the hydraulic cylinder. The pressure sensor and hydraulic lock are designed on the pipeline. The pressure sensor reads the pipeline pressure value, thereby calculating the real-time tension value of the hydraulic cylinder, which is more intuitive and accurate. The function of the hydraulic lock is to lock the circuit and prevent the oil in the circuit from flowing, so as to ensure that the cylinder can remain stationary even when there is a certain load outside, making the test value more accurate.

[0033] The torque test uses a power supply connected to a hydraulic motor, and its hydraulic circuit is mainly designed with a throttle valve, a hydraulic motor, a torque sensor, etc. During the torque test, the hydraulic pump drives the hydraulic motor to rotate, and the torque is transmitted to the rotary connector through the gear transmission. The torque sensor monitors the torque value of the rotary connector in real time. A thrust bearing is designed at the end of the gear shaft to ensure that the rotary connector is not disturbed by the outside world during the rotation process. Therefore, the torque value of the rotary connector is the torque value of the test torque minus the thrust bearing torque value. This value is more accurate than the traditional test value.

[0034] In the experiment of the present invention, the hydraulic cylinder is responsible for executing the tension test command of the rotary connector, the hydraulic motor is responsible for executing the torque test command of the rotary connector, the torque sensor is mainly responsible for real-time monitoring and recording of the torque, and the thrust bearing is the guarantee of the accuracy of the test data.

[0035] The protective cover of the testing machine is formed by sheet metal bending using a punching plate. Slots are designed at the bottom of the protective plate for positioning the protective cover. The slots on the protective cover can not only observe the conditions inside the testing machine, but also fully protect the safety of the testers.

[0036] The present invention adopts a simple and logical hydraulic system by scientifically and rationally arranging the hydraulic modules of the test machine, and innovatively adopts thrust bearings to assist in torque testing, so that the results are highly accurate. When testing rotary connectors of different specifications, only the serialized connection tooling needs to be replaced to complete the testing of rotary connectors of all specifications.

[0037] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions and positional relationships based on the directions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Note that the above are only preferred embodiments of the present invention and the principles of the application technology. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the specific embodiments described herein, and may include more other effective embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A traction rope torque releaser periodic testing machine, characterized in that: It includes a main frame, a hydraulic pump station, a hydraulic cylinder, a first connecting tool, a second connecting tool, a hydraulic motor, a transmission gear set, a torque sensor, a pressure sensor, a thrust bearing and a power supply, wherein the power supply is used to provide power for the torque sensor and the pressure sensor; The hydraulic cylinder is fixedly arranged on one side of the main frame, and the output shaft of the hydraulic cylinder is connected to one end of the first connecting fixture, the other end of the first connecting fixture and one end of the second connecting fixture are used to fix the experimental workpiece, and the other end of the second connecting fixture is fixedly arranged on the other side of the main frame through a thrust bearing; The output shaft of the hydraulic motor is connected to the second connecting tooling through a transmission gear set, which is used to transmit rotational torque to the second connecting tooling. The oil circuit output end of the hydraulic pump station is respectively connected to the oil circuit input end of the hydraulic motor and the hydraulic cylinder; the torque sensor is arranged at the end of the output shaft of the hydraulic motor, one end is connected to the output shaft of the hydraulic motor through a coupling, and the other end is connected to the transmission gear set. The pressure sensor is arranged in the oil circuit between the hydraulic cylinder and the hydraulic pump station, and also includes a hydraulic lock, which is fixedly arranged on the circuit of the hydraulic cylinder; and also includes a throttle valve, which is arranged on the oil outlet oil circuit of the hydraulic pump station to adjust the oil circuit flow. ; The first connecting fixture and the second connecting fixture are both cylindrical rigid parts, one end of which has a small diameter and is a connecting ear plate. A pin hole is axially and vertically opened on the connecting ear plate for pin shaft fitting and plugging; the other end has a large diameter and is a connecting part. A groove is opened on the end face of the connecting part to match the end of the experimental workpiece. An internal thread is set on the inner wall of the end of the groove, and a positioning threaded hole is also opened on the side wall; there are two hydraulic pump stations, which are separately connected to the hydraulic motor and the hydraulic cylinder respectively; the thrust bearing uses a thrust bearing seat as a carrier, which is connected to the main frame by bolts, and the thrust bearing is sleeved on the gear shaft, and the gear shaft is in direct contact with the thrust plate of the thrust bearing.

2. The traction rope torque releaser periodic testing machine according to claim 1, characterized in that: A display is also included, wherein the input end of the display is respectively connected to the output end of the pressure sensor and the torque sensor for displaying the measured values.

3. The traction rope torque releaser periodic testing machine according to claim 1, characterized in that: It also includes a protective cover, which is fixedly and detachably arranged on the main frame.

4. The traction rope torque releaser periodic testing machine according to claim 3 is characterized in that: The protective cover is hollowed out.

5. A test method based on the traction rope torque releaser periodic test machine according to claim 1, characterized in that: The specific steps include:

01. Clarify the specifications and models of the rotary connector, and then select the corresponding connection tooling according to its specifications and models; the specific process is to remove the main frame protective cover, and then check whether the oil pipes and lines at various locations are connected in a standardized and stable manner; 02. Start the hydraulic pump station connected to the hydraulic cylinder, fully extend the output shaft of the hydraulic cylinder, and then connect the rotary connector with the cylinder and the gear shaft through the connecting tooling. Finally, buckle the protective cover on the main frame and tighten it with bolts; 03. Start the power supply and the hydraulic pump station connected to the hydraulic motor, operate the hydraulic pump station connected to the hydraulic cylinder to control the hydraulic cylinder to retreat, and observe the value of the pressure sensor on the display to keep the pressure of the hydraulic cylinder at the test pressure value; 04. Operate the hydraulic pump station connected to the hydraulic motor to control the rotation of the hydraulic motor. The display shows the value on the torque sensor, and manually judge whether it meets the requirements.

6. The test method of the traction rope torque releaser periodic tester according to claim 5 is characterized in that: The torque value on the display in step 04 needs to be subtracted from the torque value of the thrust bearing to obtain the torque value of the experimental workpiece.

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