CN111855180A - Spherical compensator performance detection testing machine - Google Patents
Spherical compensator performance detection testing machine Download PDFInfo
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- CN111855180A CN111855180A CN202010735002.0A CN202010735002A CN111855180A CN 111855180 A CN111855180 A CN 111855180A CN 202010735002 A CN202010735002 A CN 202010735002A CN 111855180 A CN111855180 A CN 111855180A
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- G01M13/00—Testing of machine parts
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention relates to a comprehensive performance testing machine for performance detection of a spherical compensator, which can realize three composite displacement reciprocating motions of Z-axis axial direction, X-axis transverse direction and Z-axis rotation, and has the technical key points that: four groups of components in a shape like a Chinese character 'mi' are arranged on the mounting platform, and the components are rotated by a servo motor to drive a screw rod to be transmitted to a flange self-locking device, so that automatic centering and clamping are realized, and a test piece is convenient to mount, position and clamp; the lower part of the platform is connected with the hollow main shaft and can rotate 360 degrees; the hydraulic pump station is connected with the oil cylinder through a proportional valve, a synchronous valve, an asynchronous valve and a rigid hydraulic pipeline; a temperature sensor is adopted to realize oil temperature alarm, a pressure sensor is adopted to realize overpressure alarm, a photoelectric displacement sensor is adopted to realize displacement protection, and a liquid level sensor is adopted to realize oil level alarm; the tablet personal computer is arranged on the electric control cabinet, so that manual and automatic operation can be realized.
Description
Technical Field
The invention belongs to the technical field of measurement of physical parameters of products, and particularly relates to a comprehensive performance testing machine for detecting the performance of a spherical compensator.
Background
At present, no universal integrated testing machine for the spherical compensator special for type inspection exists in China, and aims to fill up the blank in China. The spherical compensator is mainly used for urban heat supply pipelines and the like which need to absorb angular displacement on any plane. A spherical compensator defines a device that absorbs displacement of a conduit by flexing and rotation of a spherical body relative to a housing. The ball-shaped component comprises a ball body, a shell, a bending angle, sealing filler, a sealing ring, an ablation rate and a material injection nozzle, wherein the ball body can be freely bent and rotated within the maximum bending angle range, and one end of the ball body is connected with a pipeline. The shell can contain a ball body, a ball tile, a sealing ring and sealing filler, and one end of the ball body is connected with the pipeline. The bending angle is the rotation angle of the sphere relative to the shell by taking the sphere center of the sphere as the center. The sealing filler is a material with the function of air sealing to a medium; the sealing ring is an annular element which can prevent the sealing filler from leaking outwards and can also seal the pipeline conveying medium; the ablation rate refers to the mass fraction lost by the physical and chemical changes of part of substances of the sealing material under the action of the temperature of the working medium; the material filling nozzle is a device for filling sealing filler into the sealing box. The material injection nozzle is divided into a common type and a rotary type. The common material injection nozzle is used for filling sealing materials into the sealing part only when the heat supply network stops running; the rotary material injection nozzle can be used for filling the sealing stuffing into the sealing box when the heat supply network operates or stops operating.
Disclosure of Invention
The invention aims to provide a ball-type compensator performance detection testing machine, which is a special ball-type compensator universal integrated testing machine for type detection of a ball-type compensator.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a ball type compensator performance testing machine, it includes the automatic mounting platform who locks of base rotatable formula, and its technical essential is: the mounting platforms are clamped into a shape like a Chinese character 'mi'; a motor is adopted to control the transmission of a lead screw, so that automatic centering and clamping are realized; a hollow main shaft is arranged below the mounting platform, a servo motor is connected below the hollow main shaft, the mounting platform rotates 360 degrees, a water pressure and air pressure circulating system is arranged below the mounting platform, a water pressure pipeline and an air pressure pipeline are arranged in the main shaft motor, the pipelines are connected by a clamping sleeve pipe, a quick connector is arranged at the uppermost end of the clamping sleeve pipe, the connector is connected with a rotary compensator flange, the quick connection and the rotation are realized, and the interior can bear pressure; a hydraulic pressure test device and an air pressure test device are installed at the end of the pipeline, and automatic pressurization and automatic pressure relief are achieved.
The invention has the advantages and beneficial effects that: the performance detection testing machine for the spherical compensator can realize automatic water filling, automatic pressurization, automatic pressure maintaining, automatic pressure relief, automatic gas filling, automatic pressure maintaining and automatic gas release, and is provided with an over-pressure and pressure drop damage alarm system to judge the pressure drop magnitude and the test piece damage condition. Two main oil cylinders and a slide block and slide rail motion mechanism are adopted to be matched with the main oil cylinders, and three composite displacement reciprocating motions of Z-axis axial direction, X-axis transverse direction and Z-axis rotation can be realized. The double oil cylinders can move transversely by means of the screw rod transmission function, full-drift-diameter coverage can be achieved, and a large-drift-diameter test can be achieved through left-right movement. The movable compensation type hinge is different in height, size and model along with the spherical compensator. The movable compensation type hinge is movable and located on the upper end of the hinge in a fixed principle, the same as the main oil cylinder I and II, the lower end of the hinge is connected with the test spherical compensator, the movable compensation is carried out by relying on the middle stroke, one end of the middle hinge is provided with a U-shaped slot, test pieces with different sizes, types and heights can be effectively compensated, the compensation type hinge can be used for locating an upper end part spherical mechanism of the spherical compensator, the upper end of the spherical compensator is connected with a host frame, and the rotary freedom degree locating effect is achieved by relying on a motor lead screw and a locking mechanism. The device is provided with sensors of various models, each moving part is provided with a displacement sensor and a positioning sensor, the oil cylinder is provided with a force value sensor, a displacement sensor and a light sensor, and the device is provided with oil temperature alarm facilities, overpressure alarm, displacement protection, force value protection, pipeline pressure protection, oil level alarm and other facilities. The spherical compensator is placed into a working platform by a forklift, and the rest operation is automatically positioned and clamped by an automatic system. The invention also has the advantages of reasonable structure, safety, reliability, wide application range, energy conservation, convenience and the like.
Drawings
FIG. 1 is a schematic sketch of the front view structure of the present invention;
FIG. 2 is a schematic, diagrammatic top view of the structure of FIG. 1;
FIG. 3 is an enlarged schematic diagram of a portion of FIG. 1 at A;
the reference numbers are as follows:
1: a master cylinder I2: a main oil cylinder II 3: the upper cover plate 4: the displacement sensor 5: the fixed bracket 6: column 7: and (3) a quick connector 8: mounting the platform 9: flange self-lock device 10: the servo motor 11: disc brush slip ring 12: the control box 13: the lower platform 14: the hydraulic pipeline 15: the pneumatic line 16: hydrostatic test unit 17: air pressure test apparatus 18: the pressure sensor 19: mobile compensator hinge 20: the force sensor 21: universal joint 22: the optical sensor 23: hollow main shaft 24: the servo motor 25: asynchronous level valve I26: synchronous liquid level valve I27: asynchronous level valve II 28: synchronous liquid level valve II 29: the servo motor 30: the hydraulic pump station 31: bearing mount 32: guide lock mechanism 33: the locking mechanism 34: motor fixing bracket 35: the motor 36: slide rail 37: the screw shaft 38: the displacement sensor 39: the oil cylinder 40: adapter 41: positioning pin 42: sphere compensation trolley 43: pressure-bearing wheel.
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, but the following examples are only illustrative of the present invention and do not represent the scope of the present invention as defined by the claims.
Detailed Description
As shown in fig. 1-3, the invention relates to a performance testing machine for a spherical compensator, which comprises a mounting platform 8 with a rotatable base and an automatic locking function, wherein the mounting platform is clamped into a shape of a Chinese character mi; a motor is adopted to control the transmission of a lead screw, so that automatic centering and clamping are realized; a hollow main shaft is arranged below the mounting platform, a servo motor is connected below the hollow main shaft, the mounting platform rotates 360 degrees, a water pressure and air pressure circulating system is arranged below the mounting platform, a water pressure pipeline and an air pressure pipeline are arranged in the main shaft motor, the pipelines are connected by a clamping sleeve pipe, a quick connector is arranged at the uppermost end of the clamping sleeve pipe, the connector is connected with a rotary compensator flange, the quick connection and the rotation are realized, and the interior can bear pressure; a hydraulic pressure test device and an air pressure test device are installed at the end of the pipeline, and automatic pressurization and automatic pressure relief are achieved.
Furthermore, four groups of flange self-locking devices are arranged on the mounting platform, the self-locking devices are distributed in a shape like a Chinese character 'mi', and a screw rod is driven to be transmitted to the flange self-locking devices through the rotation of a servo motor, so that automatic centering clamping is realized; two main oil cylinders are arranged right above the mounting platform, the two main oil cylinders drive a lead screw to transmit to the bearing fixing frame through the rotation of a motor, the two main oil cylinders are driven to move on the sliding rail, and the two main oil cylinders realize displacement control through a displacement sensor.
Furthermore, force sensors are attached to the telescopic oil cylinders of the two main oil cylinders, so that one-way force value measurement and reciprocating dynamic force value measurement are realized; the tail ends of the main oil cylinders are respectively provided with a universal adapter, so that angle compensation is realized, and the flange angle compensation generated by the up-and-down reciprocating motion of the spherical compensator is compensated; and the universal adapter is provided with an optical sensor for searching and judging the position of the test piece.
Furthermore, the performance testing machine for the spherical compensator also comprises a hydraulic pump station, wherein the hydraulic pump station adopts an air cooling measure, is connected with the two main oil cylinders through a proportional valve, a synchronous valve and a rigid hydraulic pipeline, and adopts a steel pipe structure, so that the movement noise is reduced; the hydraulic pump station is connected with the two main oil cylinders through the proportional valve, the asynchronous valve and the rigid hydraulic pipeline, and the hydraulic pipeline adopts a steel pipe structure, so that the movement noise is reduced.
Furthermore, an upper cover plate is arranged above the mounting platform, a lower platform is arranged below the mounting platform, the upper cover plate and the lower platform form a main body frame by means of four stand columns, a strong rib plate fixing support is arranged outside the main body frame, the upper cover plate and the lower platform are welded through the strong rib plate fixing support, and the rotating torque force of the mounting platform is enhanced
A rotary main shaft of a base motor adopts a hollow main shaft, and the hollow main shaft is used for connecting an air pressure and water pressure pipeline; the pipeline mainly comprises the cutting ferrule pipe, but by rotatory fast plug connection between flange and pipeline, can realize rotatory and quick grafting.
The rotatable mounting platform is connected with a circuit by adopting a disc type electric brush slip ring 11, so that the rotatable mounting platform can realize rotary energization and transmit voltage and current to the automatic centering chuck motor.
The double-oil cylinder has the movable transverse transfer function: the main shaft is driven by the motor to rotate and is transmitted to the rolling bearing, and the rolling bearing is transmitted to the guide locking mechanism and moves on the sliding rail; the electromagnetic property is generated by electrifying, the sliding rail is attracted by the electromagnetic magnet, the degree of freedom is limited by the double guide rails and the electromagnet, and the stroke is positioned. The compound movement can be realized, the left and right movement is realized, the up and down movement is realized, and the two movements are simultaneously carried out; the range of the drift diameter of the cover is enlarged due to the adoption of the movable double-oil-cylinder control, and the large drift diameters such as DN 50-DN 5000 and the like are fully covered.
The movable axial transfer function of the double oil cylinders is as follows: because the drift diameter is covered, a slender oil cylinder is adopted, the longer the stroke of the oil cylinder is, the smaller the pressure is, and the larger the stroke and the force value are, the thickness of the oil cylinder is increased, and the thickness of the oil cylinder is increased, so that the stroke is reduced, and the width, the height and the cost are both met by adopting the slender hydraulic oil cylinder. The oil cylinder can move up and down, and can measure the designed rotation cycle times (fatigue test) and the bending angle test; for the tensile compression with small friction force, the tensile compression is usually not possible but not possible for the compression or the tensile compression for the test piece with large drift diameter.
The compression working of the oil cylinders is performed vigorously because the compression working of most oil cylinders is higher than the recovery working pressure. The oil cylinder joint is connected by adopting an external thread, and the auxiliary connecting device can realize the transmission from a plane to an inclined plane. The oil cylinder is provided with a force sensor which can measure the rotating torque (a dynamic force value curve can be generated during a fatigue test).
A test piece transporting vehicle, an electric forklift and a diesel forklift are arranged on the spherical compensator, so that the spherical compensator can be transported and placed on the working platform 8 quickly.
The device is provided with a hydraulic pump station which is connected with a main oil cylinder I, II through a proportional valve and a hydraulic pipeline. The intelligent control system is provided with a control cabinet, a visual operation interface, a manual operation area, a semi-automatic operation area and an automatic operation area, wherein each function has a curve function, and all sensor functions of the display system, an alarm function and the like.
The device is provided with sensors of various models, each moving part is provided with a displacement sensor and a positioning sensor, the oil cylinder is provided with a force value sensor, a displacement sensor and a light sensor, and the device is provided with oil temperature alarm facilities, overpressure alarm, displacement protection, force value protection, pipeline pressure protection, oil level alarm and other facilities. The spherical compensator is placed into a working platform by a forklift, and the rest operation is automatically positioned and clamped by an automatic system.
The invention has the following advantages: firstly, the spherical compensator is a testing machine capable of realizing the integrated function of type inspection, and can be finished on equipment after automatic clamping, and an appearance test, a sphere chromium plating test, a welding quality test and a size deviation test (which are finished manually); the test device can complete the strength and sealing test, the rotation performance and rotation moment test, the bending angle test and the formula design rotation cycle number test (which are automatically completed). Future prediction standard applicable tests: the test can be realized by a small angle rotation test and a 360-degree rotation test, and the blasting test can be automatically completed. Secondly, the main oil cylinder I, II and the slide block slide rail motion mechanism are adopted to be matched with the main oil cylinder I, II, and three composite displacement reciprocating motions of 'Z-axis axial direction-X-axis transverse direction-Z-axis rotation' can be realized. The double oil cylinders can move transversely by means of the screw rod transmission function, full-drift-diameter coverage can be achieved, and a large-drift-diameter test can be achieved through left-right movement. Thirdly, the motor drives the screw rod and the magnet to be electrified to generate a strong magnetic field to attract the slideway, and the function of positioning and fixing the degree of freedom is achieved. Fourthly, the double oil cylinders synchronously and asynchronously transmit hydraulic work-doing functions in an integrated mode, the asynchronous valve pipeline is closed, the synchronous valve pipeline is started, and synchronous and stable movement of the upper oil cylinder and the lower oil cylinder of the double oil cylinders can be achieved; the synchronous valve pipeline is closed, and the asynchronous valve pipeline is started, so that the upper oil cylinder and the lower oil cylinder of the double oil cylinders can asynchronously and stably move. Fifthly, the main oil cylinder I, II is moved to the central position to perform tests on other compensator test pieces, so that energy can be saved, and convenience in installation can be realized. And sixthly, automatic displacement control and displacement closed-loop control can be performed through the proportional valve and the linear oil cylinder, and high-precision displacement control is realized. And seventhly, a force sensor is arranged in the working end of the oil cylinder, so that dynamic force value monitoring can be realized, and a dynamic force value curve report is generated. The invention is arranged at the tail end of the oil cylinder, and a universal rotary joint can be disassembled; the downward compression force exerted by the plane at 0 degree can be converted into the inclined plane compression force of 0 degree to 45 degrees and 45 degrees to 0 degrees, and the compression force value is continuously transmitted. Thereby ensuring the fatigue angle of the test piece.
The invention relates to a comprehensive performance testing machine for carrying out performance detection on a universal integrated testing machine of a spherical compensator special for type test, which comprises a square flange, a circular flange and the like, and is convenient for mounting, positioning and clamping a test piece; the lower part of the platform is connected with a hollow main shaft 23 and can rotate 360 degrees.
The hydraulic pump station 30 is connected with the main oil cylinder I, II through a proportional valve 25/27 asynchronous valve and a rigid hydraulic pipeline, and is connected with the main oil cylinder I, II through a proportional valve 26/28 synchronous valve and a rigid hydraulic pipeline.
A tablet personal computer is installed on the electric control cabinet, and a temperature sensor is adopted to realize oil temperature alarm, a pressure sensor is adopted to realize overpressure alarm, a photoelectric displacement sensor is adopted to realize displacement protection, and a liquid level sensor is adopted to realize oil level alarm.
Four upright posts 6 are arranged on the mounting platform 8, and the upper cover plate 3, the lower platform 13 and the upright posts 6 are connected to form a main body framework. The upper cover plate 3 and the lower platform 13 are welded through the fixing support 5, and the rotating torque force of the mounting platform can be enhanced.
The double oil cylinders are transversely displaced, so that the drift diameter coverage range of the spherical compensator can be realized; specifically, two movable main oil cylinders I, II are arranged on the upper cover plate 3 and are transmitted to the guide locking mechanism 32 through the motor 35, the guide locking mechanism 32 reaches a specified position through moving on the sliding rail 36 and is positioned and locked through the locking mechanism 33, all signals are controlled by the displacement sensor 38, and the movable double oil cylinders cover the drift diameter range; the central position of the upper cover plate is provided with a slide rail 36, the slide rail 36 adopts sliding friction motion, and the central position of the upper cover plate is a rectangular hollow body for the passing of the main shaft I, II and the hinge;
the rotary air pressure and water pressure pipeline adopts the clamping sleeve pipe as the pipeline, and can realize automatic air pressure and water pressure adding functions (including pressure rise and pressure reduction). The rotary air pressure and water pressure pipeline is quickly inserted and connected, and the quick rotating sleeve joint is used, so that the pipeline can rotate 360 degrees, is quickly connected, bears high pressure, has multiple excellent functions such as multiple rotating times and the like (the joint is more used in nuclear power projects, and has high safety performance)
The hollow design of the base motor spindle can realize the functions of passing through pipeline circuits and the like inside. The liquid level sensor, the temperature sensor, the pressure sensor, the force sensor, the photoelectric displacement sensor and the like are utilized to realize the alarm function. The safety is high, the alarm function is perfect, and the alarm functions of overpressure, overtemperature, liquid level, over-displacement and the like are achieved.
The double oil cylinders carry out axial and transverse double compound displacement, and the fatigue test of the spherical compensator can be realized by motor control and asynchronous valve control; specifically, the main oil cylinder 1 can be transmitted to the guide locking mechanism 32 through the motor 35, the guide locking mechanism 32 moves on the sliding rail 36 to reach a designated position, and is positioned and locked through the locking mechanism 33 to do work downwards, so that half-time fatigue working is realized; the main oil cylinder 2 can be transmitted to the guide locking mechanism 32 through the motor 35, the guide locking mechanism 32 can reach a designated position through moving on the sliding rail 36, and the guide locking mechanism is positioned and locked through the locking mechanism 33 to do work downwards, so that the other half fatigue working is realized; the two times of downward working and upward working of the main shaft can be self-locked by transverse movement and axial movement, so that double compound movement is formed.
The double oil cylinders can realize three-compound movement by axially and transversely double compound displacement and axially rotating the mounting platform 8, and the fatigue test of the spherical compensator can be realized by motor control and asynchronous valve control; specifically, the main oil cylinder 1 can be transmitted to the guide locking mechanism 32 through the motor 35, the guide locking mechanism 32 moves on the sliding rail 36 to reach a designated position, and is positioned and locked through the locking mechanism 33 to do work downwards, so that half-time fatigue working is realized; the main oil cylinder 2 can be transmitted to the guide locking mechanism 32 through the motor 35, the guide locking mechanism 32 can reach a designated position through moving on the sliding rail 36, and the guide locking mechanism is positioned and locked through the locking mechanism 33 to do work downwards, so that the other half fatigue working is realized; the two times of downward working and upward working of the main shaft can be self-locked by transverse movement and axial movement, so that double compound movement is formed; under the above condition, the base motor starts to perform 360-degree rotation test, so as to achieve three-compound motion.
Insert formula rotatable atmospheric pressure, water pressure system and pipeline soon, quick-operation joint 7 with by test piece quick-operation joint be connected, connect the cutting ferrule pipe, the cutting ferrule pipe is connected 14, the atmospheric pressure pipeline 15 of water pressure pipeline through hollow main shaft 23, is connected to hydrostatic test device 16, atmospheric test device 17 respectively.
The universal adapter 21 consists of an internal thread adapter 40, a cylindrical positioning pin 41, a spherical compensator trolley 42 pressure-bearing wheel 43 and an optical sensor 22; the universal adapter 21 is connected through external threads at the tail ends of the main oil cylinders 1 and 2, and actively reciprocates, and is used for compensating inclined plane forces of 0-45 degrees and-45-0 degrees of inclination of a flange generated by a ball-shaped compensator in a fatigue test, wherein the inclined plane forces are about +/-15 degrees in common tests.
The movable compensatable hinge 19 is different in size according to the height of the ball compensator. The movable tasteless hinge can realize the positioning of the upper piece-free spherical mechanism of the spherical compensator, and the upper end of the spherical compensator is connected with the host frame to realize the effect of freedom degree positioning. The upper end of the spherical compensator is accurately positioned with increased difficulty, so that a movable compensation type hinge 19 is invented; one end of the hinge is fixedly designed and is connected with the upper cover plate 3 to be provided with a magnetic sucker, a motor 35 drives a lead screw 37 to transmit to a guide locking mechanism 33 so as to move and accurately fix the magnetic sucker, the lower end of the hinge adopts a telescopic automatic adjusting type double-U-shaped strip plate which is used for automatically adjusting the height and bearing the torque brought by the rotation of 360 degrees of a Z axis, and the upper end part of the spherical compensator can be well controlled.
Example 1
As shown in fig. 1, 2 and 3, four sets of flange self-locking devices 9 are arranged on the mounting platform 8, the self-locking devices 9 are distributed in a shape like a Chinese character 'mi', the servo motor 10 rotates to drive a lead screw to be transmitted to the flange self-locking devices, automatic centering and clamping are achieved, and due to square flanges, circular flanges and the like, a test piece can be conveniently mounted, positioned and clamped. A high-power servo motor 24 is arranged below the mounting platform, a main shaft of the motor rotates in a hollow mode, a water pressure pipeline 14 and an air pressure pipeline 15 are mounted in the main shaft motor, the pipelines are connected through a clamping sleeve pipe, a quick connector 7 is arranged at the uppermost end of the clamping sleeve pipe, the connector is connected with a rotary compensator flange, quick connection and rotation can be achieved, and the interior of the connector can bear pressure; the end of the pipeline is provided with a water pressure test device 16 and an air pressure test device 17, so that automatic pressurization and automatic pressure relief can be realized. The servo motor 24 and the mounting platform 8 can rotate 360 degrees, the mounting platform 8 and the disc type electric brush slip ring 11 can rotate 360 degrees to be electrified, and the flange self-locking device 9 is ensured to be always in an electrified state. There is an upper cover plate 3 above the mounting platform 8, and there is a lower platform 13 below, and upper cover plate 3 relies on 4 stands 6 joint support with lower platform 13, and in order to strengthen experimental intensity and torsion, there is a strong gusset fixed bolster 5 outside the main body frame, can realize that the circumference is rotatory more pulling force and torsion that brings. A main oil cylinder 1 and a main oil cylinder 2 are arranged right above the mounting platform 8, and a pressure sensor is arranged at the upper ends of the main oil cylinder 1 and the main oil cylinder in the figure 2 for judging that the pressure in the cylinder exists, so that the early warning function of the pressure in the cylinder can be realized; the main oil cylinder 1 and the main oil cylinder 2 rotate through the motor 35 to drive the screw rod 37 to be transmitted to the bearing fixing frame 31 to drive the main oil cylinder 1 and the main oil cylinder 2 to move on the slide rail 36, sample pieces with different drift diameters realize drift diameter coverage by adjusting the distance between the main oil cylinders 1 and 2, and the main oil cylinders 1 and 2 realize displacement control through the displacement sensor 38; the main oil cylinders 1 and 2 can synchronously realize downward reciprocating working and can also asynchronously reciprocate downward working, and the downward working of the main oil cylinders 1 and 2 is controlled by a displacement sensor 4; the force sensor 20 is attached to the telescopic oil cylinders of the main oil cylinders 1 and 2, so that the measurement of a one-way force value and the measurement of a reciprocating dynamic force value can be realized; the universal adapter 21 is arranged at the tail ends of the main oil cylinders 1 and 2, so that angle compensation can be realized, and flange angle compensation generated by up-and-down reciprocating motion of the spherical compensator is compensated; the universal adapter 21 is provided with an optical sensor 22 which can be used for searching and judging the position of a test piece, can be matched with the main shafts 1 and 2 and can complete dynamic movable reciprocating motion with the lead locking mechanism 33; the movable compensation type hinge 19 is used for connecting the ball star compensators with different heights and different drift diameters, can realize the fixation of the Z-axis rotation of the ball type compensator, prevents the Z-axis rotation displacement generated by the reciprocating motion of the main shafts 1 and 2, and can also be used for limiting the Z-axis rotation of the ball type compensator brought by the rotation of the mounting platform 8; the principle of the compensation type hinge 19 is the same as the movement principle of the main shaft oil cylinder, and the motor 35 drives the screw rod 37 to transmit the lead locking mechanism 32, and the guide fastening mechanism 33 is electrified to generate electromagnetic force to attract the slide rail 36 to complete the degree of freedom fixation.
A test piece transporting vehicle, an electric forklift and a diesel forklift are arranged on the spherical compensator, so that the spherical compensator can be transported and placed on the working platform 8 quickly.
The device is provided with a hydraulic pump station 30, and the hydraulic pump station 30 adopts an air cooling measure to ensure the oil temperature control during the operation of the equipment. The hydraulic power unit 30 passes through the proportional valves 26, 28; the synchronous valve and the rigid hydraulic pipeline are connected with the main oil cylinder 1 and the main oil cylinder 2, and the hydraulic pipeline adopts a steel pipe structure, so that the movement noise is reduced; the hydraulic power unit 30 passes through the proportional valves 25 and 27; the asynchronous valve and the rigid hydraulic pipeline are connected with the main oil cylinder 1 and the main oil cylinder 2, and the hydraulic pipeline adopts a steel pipe structure, so that the movement noise is reduced.
Install the panel computer on the electrical control cabinet, can realize visual operation, the manual operation district is distinguished into in visual operation, can carry out the setting of parameters such as motion displacement, number of times of operation, test piece serial number in the operation district, is provided with equipment protect function such as scram.
The device adopts the temperature sensor to realize oil temperature alarm, the pressure sensor to realize overpressure alarm, the photoelectric displacement sensor to realize displacement protection, the liquid level sensor to realize oil level alarm and the normal operation of the protection device respectively.
The method comprises the following operation steps:
the operation steps of the small test piece test axial displacement are as follows: the spherical compensator is arranged on the mounting platform 8, the main shaft oil cylinder 1 can be adopted for independent test, the distance between the main shaft oil cylinder 1 and the main shaft oil cylinder 2 and the hinge is adjusted, the oil cylinder joint is replaced, the front section of the test oil cylinder is connected in a hinge mode, and reciprocating motion is carried out (single oil cylinder work can be adopted due to small friction force and small drift diameter). Setting axial displacement and cycle times on a control interface, and starting an automatic cycle function; the main oil cylinder 1 is automatically found through software control, the main oil cylinder 1 drives a lead screw 37 to transmit to a bearing fixing frame 31 through the rotation of a motor 35 to drive the main oil cylinder 1 to move on a sliding rail 36, the main oil cylinder is automatically located at an installation position above a workpiece, and after the hinge is installed, a circulation button is started to realize automatic circulation. And when the circulation reaches the set times, stopping the operation of the equipment and printing the test report.
The test operation steps of the axial displacement of the large test piece are as follows: the spherical compensator is arranged on the mounting platform 8, a synchronous test of the main shaft oil cylinders 1 and 2 can be adopted, the distance between the main shaft oil cylinder 1 and the main shaft oil cylinder 2 and the hinge is adjusted, the joint of the oil cylinders is replaced, the middle position of a test piece at the fixed end of the test is connected in a hinge mode, and reciprocating motion is carried out (double-oil-cylinder work is required due to large friction force and large drift diameter). Setting axial displacement and cycle times on a control interface, and starting an automatic cycle function; the main oil cylinders 1 and 2 are automatically found through software control, the main oil cylinders 1 and 2 drive the lead screw 37 to be transmitted to the bearing fixing frame 31 through the rotation of the motor 35 to drive the main oil cylinder 1 to move on the sliding rail 36, the main oil cylinder is automatically located at the installation position above the workpiece, and after the hinge is installed, the circulation button is started to realize automatic circulation. And when the circulation reaches the set times, stopping the operation of the equipment and printing the test report.
If the temperature of the hydraulic pump station 30 exceeds 60 ℃ in the test process, the temperature sensor sends out an alarm signal, the overtemperature indicator lamp is on, the buzzer sounds, and the test machine stops running. If the liquid level of the pump station 30 is not enough, the liquid level sensor sends out an alarm signal, the liquid level indicator lamp is on, the buzzer sounds, and the testing machine stops running; if the test pressure of the equipment exceeds the set pressure by 10%, the pressure sensor sends out an alarm signal, the overpressure indicator lamp is on, the buzzer sounds, and the testing machine stops running; if the test displacement of the equipment reaches the displacement limit, the equipment sends an alarm signal, an over-displacement indicating lamp is on, a buzzer sounds, and the testing machine stops running; when an abnormal condition occurs in the test process, the hydraulic pump station 30 is stopped by pressing the emergency stop switch, and the operation of the test machine is interrupted.
The working principle is as follows:
the pump station is started through an electric control signal, the opening size of the proportional valve and the state of the synchronous valve are controlled through an electric signal, the oil liquid and the driving oil cylinder are controlled to move, and the movement speed can be adjusted. The control of the movement displacement of the oil cylinder is realized by closed-loop control of a displacement sensor in the linear oil cylinder. And when the test times reach the set times, the program sends out an instruction to stop the operation of the pump station. Through transporting the test piece vehicle, electric fork-lift truck and diesel fork-lift truck, can realize on ball-type compensator's the rapid transportation and place work platform 8 fast.
The displacement alarm is realized by sensing the position and sending a signal through a photoelectric displacement switch; the liquid level alarm is realized by sensing the liquid level of the oil tank through a liquid level sensor; the overpressure alarm is realized by feeding back a pressure signal by a pressure sensor; the overtemperature alarm is realized by sensing the temperature of the oil tank through a temperature sensor. When the testing machine gives an alarm, the program stops running, and the motor stops running.
Claims (8)
1. The utility model provides a ball type compensator performance testing machine, it includes the automatic mounting platform who locks of base rotatable formula, its characterized in that: the mounting platforms are clamped into a shape like a Chinese character 'mi'; a motor is adopted to control the transmission of a lead screw, so that automatic centering and clamping are realized; a hollow main shaft is arranged below the mounting platform, a servo motor is connected below the hollow main shaft, the mounting platform rotates 360 degrees, a water pressure and air pressure circulating system is arranged below the mounting platform, a water pressure pipeline and an air pressure pipeline are arranged in the main shaft servo motor and are connected through a clamping sleeve pipe, a quick connector is arranged at the uppermost end of the clamping sleeve pipe and is connected with a rotary compensator flange, so that quick connection and rotation are realized, and the inside can bear pressure; a hydraulic pressure test device and an air pressure test device are installed at the end of the pipeline, and automatic pressurization and automatic pressure relief are achieved.
2. The spherical compensator performance testing machine according to claim 1, wherein: four groups of flange self-locking devices are arranged on the mounting platform, the self-locking devices are distributed in a shape like a Chinese character 'mi', and a screw rod is driven to be transmitted to the flange self-locking devices through the rotation of a servo motor, so that automatic centering clamping is realized; two main oil cylinders are arranged right above the mounting platform, the two main oil cylinders drive a lead screw to transmit to the bearing fixing frame through the rotation of a motor, the two main oil cylinders are driven to move on the sliding rail, and the two main oil cylinders realize displacement control through a displacement sensor.
3. The spherical compensator performance testing machine according to claim 2, wherein: force sensors are attached to the two main oil cylinder telescopic oil cylinders to realize one-way force value measurement and reciprocating dynamic force value measurement; the tail ends of the main oil cylinders are respectively provided with a universal adapter, so that angle compensation is realized, and the flange angle compensation generated by the up-and-down reciprocating motion of the spherical compensator is compensated; and the universal adapter is provided with an optical sensor for searching and judging the position of the test piece.
4. The spherical compensator performance testing machine according to claim 1, wherein: the performance testing machine for the spherical compensator also comprises a hydraulic pump station, wherein the hydraulic pump station adopts an air cooling measure, is connected with the two main oil cylinders through a proportional valve, a synchronous valve and a rigid hydraulic pipeline, and adopts a steel pipe structure, so that the movement noise is reduced; the hydraulic pump station is connected with the two main oil cylinders through the proportional valve, the asynchronous valve and the rigid hydraulic pipeline, and the hydraulic pipeline adopts a steel pipe structure, so that the movement noise is reduced.
5. The spherical compensator performance testing machine according to claim 1, wherein: there is an upper cover plate above the mounting platform, and there is a platform below, and upper cover plate and platform rely on four stands to constitute main body frame down, and main body frame has a strong gusset fixed bolster outward, and upper cover plate and platform pass through strong gusset fixed bolster welding down, strengthen mounting platform rotation torque torsion.
6. The spherical compensator performance testing machine according to claim 1, wherein: and the reciprocating motion of three composite displacements of Z-axis axial direction, X-axis transverse direction and Z-axis rotation is realized relative to the workpiece on the base chuck.
7. The spherical compensator performance testing machine according to claim 3, wherein: the tail end of the oil cylinder is provided with a detachable universal rotary joint, so that downward compression force is applied from 0 degree to-45 degrees and from-45 degrees to 0 degrees on the plane, and the compression force is continuously transmitted, thereby ensuring the fatigue angle of the test piece.
8. The spherical compensator performance testing machine according to claim 1, wherein: the upper cover plate below is provided with the removal compensable hinge, and the removal compensable hinge upper end is fixed in the master cylinder below, and the lower extreme is connected with experimental ball-type compensator, relies on the portable compensation of middle stroke, and U type notch is adopted to middle hinge one end, and effectual compensation is not the test piece of equidimension, different model, different height.
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| CN202010735002.0A CN111855180A (en) | 2020-07-28 | 2020-07-28 | Spherical compensator performance detection testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881187A (en) * | 2021-01-15 | 2021-06-01 | 江苏晨鑫波纹管有限公司 | Multifunctional test platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881187A (en) * | 2021-01-15 | 2021-06-01 | 江苏晨鑫波纹管有限公司 | Multifunctional test platform |
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