CN114509226A - Metal rubber bearing bending rigidity test device under high and low temperature environment - Google Patents
Metal rubber bearing bending rigidity test device under high and low temperature environment Download PDFInfo
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- CN114509226A CN114509226A CN202210352916.8A CN202210352916A CN114509226A CN 114509226 A CN114509226 A CN 114509226A CN 202210352916 A CN202210352916 A CN 202210352916A CN 114509226 A CN114509226 A CN 114509226A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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Abstract
The invention discloses a metal rubber bearing bending stiffness test device under high and low temperature environment, which comprises a precompression tool which fixes a metal rubber bearing and provides axial precompression and is sealed in an insulation can, wherein the precompression tool comprises two compression frames which are oppositely spaced and vertically arranged through an outer fixing frame, two support plates which are vertically spaced are respectively arranged on the opposite side surfaces of the two compression frames, a horizontal loading shaft penetrates through the two compression frames, the four support plates are respectively positioned at the outer sides of the loading shaft, one side wall of a self-insulation box at one end of the loading shaft extends out and then is connected with a torque sensor, the torque sensor is connected with the outer shaft through a hydraulic actuating cylinder connecting device, and the other end of the loading shaft extends out through the other side wall of the insulation can and then is connected with an angle sensor; the hydraulic actuating cylinder is vertically arranged to apply load to enable the loading shaft to rotate, and bending moment is applied to the metal rubber bearing to enable the metal rubber bearing to bend; the heat preservation box is connected with a high-low temperature test box which provides high-low temperature wind for the interior of the heat preservation box through a closed-loop wind channel. The invention can effectively carry out bending rigidity test on the metal rubber bearing.
Description
Technical Field
The invention relates to the technical field of test devices, in particular to a metal rubber bearing bending rigidity test device in a high-temperature and low-temperature environment.
Background
The metal rubber bearing is composed of a metal large joint, a metal small joint and a metal-rubber lamination layer. The metal rubber bearing is an important part of the empennage system, and the bending and twisting motion of the empennage blade is realized through the deformation of a metal-rubber laminated layer of the metal rubber bearing. The flight attitude of the helicopter is complex and changeable, and the helicopter may face a cold and hot weather environment, so that the working environment of the bearing is severe, the rigidity characteristic of the support bearing is good and bad, the performance of a rotor system is determined to a great extent, and the flight safety of the helicopter is even affected.
The prior patent (application number 2019106641079) discloses an elastic bearing bending stiffness detection system with controllable environmental temperature and a detection method thereof, wherein a direct current motor is adopted for the bending stiffness test to drive a torsion bar to rotate through a traction device, a conduction chain applied by traction force is longer, and a force measurement value has larger error; the moment is calculated as the traction force multiplied by the moment arm L, and when the bearing is bent at the angle theta, the calculation of the moment is deviated. And the temperature control box of the technical design of this patent adopts the heater strip to generate heat, only can realize the high temperature environment, can not detect the bending stiffness under the low temperature.
Disclosure of Invention
The invention aims to provide a metal rubber bearing bending rigidity test device under high and low temperature environments, aiming at the technical defects in the prior art.
The technical scheme adopted for realizing the purpose of the invention is as follows:
a metal rubber bearing bending rigidity test device under high and low temperature environment comprises a pre-compression tool used for fixing a metal rubber bearing to be tested and providing axial pre-compression amount, the pre-compression tool is arranged on the outer fixing frame and is sealed in the heat insulation box together with the outer fixing frame, the pre-compression tool comprises two compression frames which are oppositely spaced and vertically arranged, two support plates which are vertically spaced are respectively arranged on the opposite side surfaces of the two compression frames, a loading shaft which is horizontally arranged penetrates between the two compression frames, and the four support plates are respectively positioned at the outer sides of the loading shaft, one end of the loading shaft extends out of one side wall of the heat preservation box and then is connected with the torque sensor, the torque sensor is connected with an external shaft through a connecting device of a hydraulic actuator cylinder, and the other end of the loading shaft extends out of the other side wall of the heat preservation box and then is connected with an angle sensor; the hydraulic actuating cylinder is vertically arranged, the loading shaft is rotated by applying load, and bending moment is applied to the metal rubber bearing fixed between the pre-compression tool and the loading shaft, so that the metal rubber bearing reaches a target bending angle; the heat preservation box is connected with a high-low temperature test box which is used for providing high-low temperature air to the interior of the heat preservation box through a closed-loop air duct so as to enable the interior of the heat preservation box to form a required high-low temperature test environment.
The loading shaft is used for positioning the metal rubber bearing, the shaft section of the loading shaft used for positioning the metal rubber bearing is a rectangular shaft section, bosses for positioning the metal rubber bearing are formed on the upper surface and the lower surface of the rectangular shaft section, the bosses are attached to a groove surface on a first joint of the metal rubber bearing and fixed with the first joint of the metal rubber bearing through bolt pieces, the supporting plate is fixed with a second joint of the metal rubber bearing through a bearing connecting bolt, and the compression amount of the metal rubber bearing is adjusted through a distance adjusting gasket located between the supporting plate and the second joint of the metal rubber bearing.
One end of the loading shaft is a square key and is in transition fit with a key groove of the torque sensor; and the other end of the loading shaft is a key groove which is in clearance fit with the rotating shaft of the angle sensor.
The connecting device of the hydraulic actuating cylinder comprises a U-shaped part and a connecting plate matched with the U-shaped part, one side surface of two opposite side surfaces of the U-shaped part is connected with the torque sensor through a first bolt, and the other side surface of the U-shaped part is connected with the flange end surface of the outer shaft through a second bolt; one end of the connecting plate extends into the space between two opposite side surfaces of the U-shaped part and is rotatably connected with the U-shaped part through a pin shaft, and the other end of the connecting plate is connected with the hydraulic actuating cylinder.
The outer fixing frame comprises an outer fixing frame bottom plate, two fixed side plates arranged oppositely, two movable side plates arranged oppositely and a cover plate with a cross structure, the bottom ends of the fixed side plates and the movable side plates are connected with the upper surface of the outer fixing frame bottom plate through bottom bolts, and the top ends of the fixed side plates and the movable side plates are connected with the lower surface of the cover plate through top bolts; rolling bearings are installed on the movable side plates through rolling bearing installation holes, inner holes of the rolling bearings are in transition fit with optical axes at two ends of the loading shaft, and the two compression frames are detachably installed on one fixed side plate respectively.
The outer fixing frame bottom plate is fixed on the bottom plate, the bottom plate is connected with the test platform through a connecting bolt, and the heat insulation box is arranged on the bottom plate; the supporting device of the external shaft is arranged on the bottom plate, and the supporting structure of the angle sensor is arranged on the test platform through a U-shaped mounting hole in the bottom of the bottom plate of the angle sensor by using a bolt.
The top surface of the heat insulation box is provided with a temperature sensor opening, and the temperature sensor opening is used for placing a temperature sensor into the heat insulation box from the temperature sensor opening during a test and is positioned near the metal rubber bearing so as to control the environment temperature of the heat insulation box; the two side plates of the heat insulation box are provided with a heat insulation box air inlet and a heat insulation box air outlet, and the two side plates of the high-low temperature test box are provided with a test box air inlet and a test box air outlet; the air inlet of the heat preservation box is connected with the air outlet of the test box; the air outlet of the heat preservation box is connected with the air inlet of the test box through a fan.
The hydraulic actuator cylinder is fixed on a hydraulic actuator cylinder extension base, the hydraulic actuator cylinder extension base is fixed on a top beam of a bearing girder, and the bearing girder is fixed on the test platform through bolts.
The front end of the hydraulic actuating cylinder is an internal thread connector and is connected with the external thread of the connecting plate.
According to the metal rubber bearing bending rigidity test device under the high and low temperature environment, the application of the bending moment is realized by adopting the hydraulic actuator cylinder, the measurement of the bending moment is directly measured by arranging the torque sensor on the torsion shaft, and the measurement of the angle is measured on the end face of the torsion shaft by adopting the angle sensor, so that the accuracy of the bending rigidity calculation is ensured. Meanwhile, an insulation box is designed outside the bending rigidity testing tool, and is communicated with the high-low temperature test box through a fan and an air pipe, and the high-low temperature test box provides a high-low temperature test environment.
Drawings
FIG. 1 is a schematic structural diagram of a metal rubber bearing bending stiffness test device in a high and low temperature environment according to the present invention;
FIG. 2 is a partially enlarged view of the portion A shown in FIG. 1;
FIG. 3 is a schematic structural view of the bending stiffness test tool shown in FIG. 2 with the incubator removed;
FIG. 4 is a schematic structural diagram of a pre-compression tooling of the metal-rubber bearing shown in part B of FIG. 3;
FIG. 5 is a schematic structural view of the pre-compression tooling shown in FIG. 4 with the metal rubber bearing removed;
FIG. 6 is an exploded perspective view of the outer frame;
FIG. 7 is an exploded view of the angle sensor securing mechanism;
FIG. 8 is an exploded view of the part C of FIG. 3;
FIG. 9 is a schematic view of an exploded structure of the incubator;
fig. 10 is a schematic structural view of a metal rubber bearing.
In the figure:
1-a test platform, 2-a bending stiffness test tool, 3-a hydraulic actuator cylinder, 4-a hydraulic actuator cylinder extension base, 5-a load-bearing crossbeam, 6-a heat preservation box, 7-a fan, 8-an air pipe, 9-a high-low temperature test box, 10-a flange plate, 11-a bottom plate, 12-an external shaft fixing device, 13-an external rolling bearing, 14-an external shaft, 15-a U-shaped part, 16-a connecting plate, 17-a torque sensor, 18-a loading shaft, 19-an external fixing frame, 20-a metal rubber bearing, 21-a pre-compression tool, 22-an angle sensor, 23-an angle sensor fixing tool, 24-an adjusting sheet and 25-a distance adjusting gasket;
61-mounting hole, 62-ventilation opening, 63-flange mounting hole, 64-axial side plate, 65-radial side plate, 66-top plate, 67-temperature sensor hole and 68-loading shaft hole;
141-flange end mounting holes;
151-side connection hole, 152-pin hole;
161-actuator cylinder connecting threaded port, 162-connecting plate pin hole;
171-torque sensor mounting hole, 172-torque sensor pin hole, 173-key slot;
181-square key, 182-bearing mounting boss, 183-bolt connecting hole;
191-external fixed frame bottom plate, 192-fixed hole, 193-positioning hole, 194-first rolling bearing mounting hole, 195-cover plate, 196-movable side plate, 197-second rolling bearing mounting hole and 198-bottom plate mounting hole;
201-bearing mounting hole, 202-bearing loading hole, 203-first joint, 204-metal rubber laminate, 205-second joint;
211-compressing the fixture attachment holes;
221-rotation axis, 222-threaded hole;
231-U-shaped mounting holes and 232-height adjusting U-shaped holes;
241-tab mounting holes, 242-through holes, 243-fixing holes.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 10, the bending stiffness testing apparatus for a metal rubber bearing in a high and low temperature environment according to an embodiment of the present invention includes a bending stiffness testing tool 2, a temperature loading system, and a bending moment loading system, where the bending stiffness testing tool 2 includes a pre-compression tool 21 for fixing the metal rubber bearing 20 and providing an axial pre-compression amount, the pre-compression tool includes two compression frames arranged in an opposite and vertical manner, two support plates arranged in an up-down manner are respectively arranged on opposite side surfaces of the two compression frames, a horizontally arranged loading shaft 18 passes through between the two compression frames, and four support plates are respectively located at outer sides of the loading shaft 18, and a bolt hole for fixing the metal rubber bearing 20 is formed on each support plate;
the temperature loading system comprises an insulation box 6 and a high-low temperature test box 9, wherein the high-low temperature test box is connected with the insulation box through a closed-loop air duct and provides high-low temperature air for the insulation box so as to form a required high-low temperature test environment in the insulation box; the temperature loading system is coupled with the bending rigidity test tool 2, a pre-compression tool 21 and an outer fixing frame 19 of the bending rigidity test tool 2 are sealed by the insulation box 6, and a high-low temperature test environment is provided by the high-low temperature test box 9; one end of the loading shaft 18 extends out from one side wall of the heat insulation box 6 and then is connected with a torque sensor 17, the torque sensor 17 is connected with an external shaft 14 through a connecting device of a hydraulic actuator, and the other end of the loading shaft 18 extends out from the other side wall of the heat insulation box 6 and then is connected with an angle sensor 22.
And the bending moment loading system is connected with a connecting device of the hydraulic actuating cylinders, and loads by adopting the vertically arranged hydraulic actuating cylinders 3 to enable the loading shaft 18 to rotate until the metal rubber bearing reaches a target bending angle.
As an optional embodiment, the two radial side plates 65 of the heat preservation box are provided with a heat preservation box air inlet and a heat preservation box air outlet, and flanges 10 are installed outside the heat preservation box air inlet and the heat preservation box air outlet; the two side plates of the high-low temperature test box 9 are provided with a test box air inlet and a test box air outlet, and the outer sides of the test box air inlet and the test box air outlet are provided with flange plates 10; the air outlet of the heat preservation box is connected with the air inlet of a fan 7 through an air pipe 8, and the air outlet of the fan 7 is connected with the air inlet of the test box through the air pipe 8; the air inlet of the heat preservation box is connected with the air outlet of the test box through another air pipe; therefore, the heat preservation box 6, the air pipe 8, the fan 7 and the high-low temperature test box 9 form a circulating closed-loop air duct.
The top of the heat preservation box 6 is provided with a temperature sensor opening 67 for inserting and installing a temperature sensor (not shown), the temperature sensor can be arranged near the pre-compression tool 21 to measure the internal temperature, and the temperature sensor arranged inside the heat preservation box 6 is used for accurately controlling the test environment temperature of the metal rubber bearing in the heat preservation box 6 through the high-low temperature test box 9 when a bending rigidity test is carried out.
In the embodiment of the present invention, the high-low temperature test chamber 9 is an existing high-low temperature test chamber, and may be a high-low temperature test chamber of type TH1000D manufactured by beijing division of tianjin aviation reraily science and technology ltd, or a similar test chamber. The invention utilizes the control software system of the high-low temperature test box to accurately control the ambient temperature near the metal rubber bearing in the insulation box.
In the embodiment of the invention, the heat preservation box 6 is rectangular as a whole and comprises an axial side plate 64, a radial side plate 65 and a top plate 66, wherein mounting holes 61 are formed in the axial side plate 64, the radial side plate 65 and the top plate 66, and all panels can be assembled into a whole by matching with bolts of the mounting holes 61.
Wherein, the design has the vent 62 that forms insulation can air outlet, insulation can air intake on the radial curb plate 65, is connected with ring flange 10 through the flange mounting hole 63 that forms on the radial curb plate 65, and rethread ring flange 10 and tuber pipe 8 butt joint. The axial side plate 64 is provided with a loading shaft opening 68, and when the high and low temperature rigidity test is carried out, two ends of the loading shaft 18 extend out of the loading shaft opening and are respectively in butt joint with the angle sensor and the torque sensor. The angle sensor 22 and the torque sensor 17 are arranged outside the heat preservation box, so that the measurement error or sensor damage caused by the temperature exceeding the use temperature of the sensor can be avoided; the top plate 66 has a temperature sensor opening 67.
Wherein, the outer sides of each panel and the air pipe of the heat preservation box 6 are uniformly provided with heat insulation layers, and the heat insulation layers can be made of high-density heat insulation cotton of nitrile rubber and are used for heat preservation of the whole air duct circulation.
In the embodiment of the invention, the bending moment loading system further comprises a test platform 1, a bearing girder 5 and a hydraulic actuator cylinder extension base 4. The force-bearing crossbeam 5 is fixed on the test platform 1 through bolts, the hydraulic actuator cylinder 3 is fixed on the hydraulic actuator cylinder extension base 4 through bolts, and the hydraulic actuator cylinder extension base 4 is fixed on the top beam of the force-bearing crossbeam 5 through bolts. The front end of the hydraulic actuating cylinder 3 is an internal thread interface and can be connected with a connecting device of the hydraulic actuating cylinder. The hydraulic ram 3 may be loaded by the control system to rotate the load shaft 18, thereby applying a bending moment to the metal-rubber bearing 20.
In the embodiment of the invention, the bending stiffness test tool comprises a bottom plate 11, and the pre-compression tool 21, the outer fixing frame 19, the heat preservation box 6 and the outer shaft fixing device 12 are all fixedly arranged on the bottom plate 11. The bottom plate 11 is provided with a through hole and connected with the test platform 1 through a bolt, and the angle sensor fixing tool 23 is fixed on the test platform 1.
In the embodiment of the present invention, the bearing mounting section of the loading shaft 18 is a rectangular section, the upper and lower surfaces of the bearing mounting section are both designed with bearing mounting bosses 182 for positioning the metal rubber bearing, the bearing mounting bosses 182 are attached to the groove surface on the first joint 203 of the metal rubber bearing 20, the bearing mounting bosses are correspondingly provided with at least two bolt connection holes 183 arranged in the radial direction, and the first joint 203 of the metal rubber bearing 20 is provided with corresponding bearing mounting holes 201; and then is fixed with the groove on the bottom surface of the first joint 203 of the metal rubber bearing in a matching way through a bolt. The pre-compression tooling 21 is fixed with bearing loading holes 202 on a second joint 205 of the metal rubber bearing 20 by bolts through support plates and bolt holes on the support plates, the number of the bearing loading holes 202 is two, the two bearing loading holes are respectively aligned with the bolt holes on the two opposite support plates, the compression amount of the metal rubber bearing is adjusted through a distance adjusting gasket 25 positioned at the bolt hole position, and a metal rubber lamination 204 of the metal rubber bearing 20 is arranged between the first joint and the second joint.
As an alternative embodiment, one end of the loading shaft 18 is a square key 181, which is in transition fit with the key slot 173 of the torque sensor 17; the other end of the loading shaft 18 is a key slot which is in clearance fit with the rotating shaft 221 of the angle sensor 22.
In the embodiment of the present invention, the external fixing frame 19 includes an external fixing frame bottom plate 191, two opposite fixing side plates, two opposite movable side plates 196, and a cross-shaped cover plate 195, wherein the external fixing frame bottom plate 191 is provided with a fixing hole 192 and a positioning hole 193, and is first positioned with the positioning hole on the bottom plate 11 through the positioning hole 193, and then fixed with the bottom plate 11 through the fixing hole 192.
The design has the screw hole on the fixed curb plate, is connected with pre-compression frock 21 through the bolt that cooperates compression frock fixed orifices 211, installs pre-compression frock 21 on fixed curb plate, and fixed curb plate is fixed with outer fixed frame bottom plate. The bottom of the movable side plate 196 is designed with a threaded hole which is fixed with the bottom plate mounting hole 198 through a bolt. The movable side plate 196 is provided with a rolling bearing mounting hole, which comprises a first rolling bearing mounting hole 194 and a second rolling bearing mounting hole 197 for mounting corresponding rolling bearings, and the inner holes of the rolling bearings are in transition fit with the optical axes at the two ends of the loading shaft 18.
Wherein the movable side plate 196 is designed to be detachable for facilitating the installation of the loading shaft 18. Eight through holes are designed on the cover plate 195 and are connected with the threaded holes at the tops of the fixed side plate and the movable side plate through bolts to strengthen the strength of the external fixing frame 19.
In the embodiment of the invention, the angle sensor is arranged on the test platform through an angle sensor fixing tool 23 with a T-shaped structure, a U-shaped mounting hole 231 is designed on a bottom plate of the angle sensor, and the angle sensor is fixed with the test platform 1 through a bolt; the U-shaped mounting hole 231 allows the mounting position of the angle sensor 22 to be adjusted in the radial direction.
A height adjusting U-shaped hole 232 is designed on a vertical plate of the angle sensor fixing tool 23 and is fixed with an adjusting sheet 24 positioned between the vertical plate and the heat preservation box 6 through a bolt, and an adjusting sheet mounting hole 241 is arranged at a corresponding position of the adjusting sheet 24; the design of the height-adjusting U-shaped hole 232 can enable the installation position of the angle sensor 22 to be adjusted in the vertical direction.
The adjusting plate 24 is designed with three fixing holes 243 with uniformly distributed circular axes, which are connected with the three threaded holes 222 on the angle sensor 22 for fixing the angle sensor 22. The tabs 24 have through holes 242 between the securing holes 243 for avoiding a ledge on the angle sensor during installation.
The rotation shaft 221 of the angle sensor 22, which passes through the through hole 242 of the tab, is in clearance fit with the key slot of one end of the loading shaft 18, and is used for measuring the rotation angle of the loading shaft 18.
In the embodiment of the present invention, the torque sensor 17 connects the loading shaft 18 with the outer shaft 14 so as to measure the bending moment on the loading shaft 18 during the bending stiffness test. The torque sensor 17 has four torque sensor mounting holes 171 on its flange end face, which are bolted to the side attachment holes 151 of the U-shaped member 15. The other end of the torque sensor 17 is a key slot 173 which is in transition fit with a square key 181 at one end of the loading shaft 18 to transmit the bending moment to the metal rubber bearing 20. A torque sensor pin hole 172 on the torque sensor 17 that interfits with a pin hole on one end of the loading shaft 18 to prevent the torque sensor 17 from disengaging from the loading shaft 18 at the interface.
In the embodiment of the invention, the connecting device of the hydraulic actuating cylinder comprises a U-shaped member 15 and a connecting plate 16, wherein two side surfaces of the U-shaped member 15 are respectively provided with a side connecting hole 151 with an internal thread structure, and one side surface is fixed with a torque sensor mounting hole 171 on the flange end surface of a torque sensor 17 through a bolt; the other side is fixed to the flange end mounting hole 141 of the outer shaft 14 by bolts.
In the embodiment of the invention, the round end of the connecting plate 16 extends into the space between the two side plates of the U-shaped member 15 during testing, and the pin hole 162 of the connecting plate and the pin hole 152 of the U-shaped member are in transition fit through a pin shaft. The other end of the connecting plate 16 is a ram connecting threaded port 161, which is connected to an internal threaded port at the front end of the hydraulic ram 3.
In the embodiment of the invention, the external shaft fixing device 12 comprises a tool bottom plate, a vertical plate and a rib plate, wherein a fixing hole and a positioning hole are designed on the tool bottom plate, the positioning hole and the positioning hole of the bottom plate 11 of the bending rigidity test tool are firstly positioned, and then the fixing hole and the bottom plate 11 of the bending rigidity test tool are fixed, an external rolling bearing mounting hole is designed on the vertical plate and used for mounting an external rolling bearing 13, and the mounting mode is transition fit; the rib plate is integrally welded with the vertical plate and the bottom plate to enhance the strength of the outer bearing fixing tool; the flange end mounting hole 141 at one end of the external shaft 14 is fixedly connected with the U-shaped part 15 through a bolt, and the optical axis at the other end is in transition fit with the inner hole of the external rolling bearing 13.
Compared with the prior art, the bending rigidity test device for the metal rubber bearing in the high and low temperature environment has the advantages that the bending moment is applied by the hydraulic actuating cylinder, the bending moment is measured directly by the torque sensor arranged on the loading shaft, the angle is measured on the end face of the loading shaft by the angle sensor, and the accuracy of bending rigidity calculation is guaranteed. The angle sensor and the torque sensor are arranged outside the heat preservation box, so that the situation that the temperature exceeds the service temperature of the sensor to cause measurement errors or damage to the sensor can be avoided, and the accuracy of measuring the bending moment and the angle is ensured. The thermal insulation box is arranged outside the bending rigidity testing tool and is communicated with the high-low temperature test box through the fan and the air pipe, the temperature sensor is arranged in the thermal insulation box nearby the metal rubber bearing, and the high-low temperature test box provides a high-low temperature testing environment, so that the temperature control is simple in operation and accurate in control.
The application of the invention can effectively meet the bending rigidity test requirements of the metal rubber bearing in high and low temperature environments.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof;
the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The metal rubber bearing bending rigidity testing device under the high and low temperature environment is characterized by comprising a pre-compression tool for fixing the metal rubber bearing to be tested and providing axial pre-compression amount, the pre-compression tool is arranged on the outer fixing frame and is sealed in the heat insulation box together with the outer fixing frame, the pre-compression tool comprises two compression frames which are oppositely spaced and vertically arranged, two support plates which are vertically spaced are respectively arranged on the opposite side surfaces of the two compression frames, a loading shaft which is horizontally arranged penetrates between the two compression frames, and the four support plates are respectively positioned at the outer sides of the loading shaft, one end of the loading shaft extends out of one side wall of the heat preservation box and then is connected with the torque sensor, the torque sensor is connected with an external shaft through a connecting device of a hydraulic actuator cylinder, and the other end of the loading shaft extends out of the other side wall of the heat preservation box and then is connected with an angle sensor; the hydraulic actuating cylinder is vertically arranged, the loading shaft is rotated by applying load, and bending moment is applied to the metal rubber bearing fixed between the pre-compression tool and the loading shaft, so that the metal rubber bearing reaches a target bending angle; the heat preservation box is connected with a high-low temperature test box which is used for providing high-low temperature air to the interior of the heat preservation box through a closed-loop air duct so as to enable the interior of the heat preservation box to form a required high-low temperature test environment.
2. The metal rubber bearing bending stiffness test device under the high and low temperature environment of claim 1, wherein a shaft section of the loading shaft for positioning the metal rubber bearing is a rectangular shaft section, bosses for positioning the metal rubber bearing are formed on the upper surface and the lower surface of the rectangular shaft section, the bosses are attached to groove surfaces on a first joint of the metal rubber bearing and fixed with the first joint of the metal rubber bearing through bolt pieces, the support plate is fixed with a second joint of the metal rubber bearing through a bearing connecting bolt, and the compression amount of the metal rubber bearing is adjusted through a distance adjusting gasket between the support plate and the second joint of the metal rubber bearing.
3. The metal rubber bearing bending stiffness test device under the high and low temperature environment according to claim 1, wherein one end of the loading shaft is a square key and is in transition fit with a key groove of the torque sensor; and the other end of the loading shaft is a key groove which is in clearance fit with the rotating shaft of the angle sensor.
4. The metal rubber bearing bending rigidity test device in high and low temperature environment according to claim 1, wherein the connection device of the hydraulic cylinder comprises a U-shaped member and a connection plate matched with the U-shaped member, one side surface of two opposite side surfaces of the U-shaped member is connected with the torque sensor through a first bolt, and the other side surface of the U-shaped member is connected with the flange end surface of the external shaft through a second bolt; one end of the connecting plate extends into the space between two opposite side surfaces of the U-shaped part and is rotatably connected with the U-shaped part through a pin shaft, and the other end of the connecting plate is connected with the hydraulic actuating cylinder.
5. The metal rubber bearing bending stiffness test device under the high and low temperature environment according to claim 1, wherein the external fixed frame comprises an external fixed frame bottom plate, two fixed side plates arranged oppositely, two movable side plates arranged oppositely and a cross-shaped cover plate, bottom ends of the fixed side plates and the movable side plates are connected with an upper surface of the external fixed frame bottom plate through bottom bolts, and top ends of the fixed side plates and the movable side plates are connected with a lower surface of the cover plate through top bolts; rolling bearings are installed on the movable side plates through rolling bearing installation holes, inner holes of the rolling bearings are in transition fit with optical axes at two ends of the loading shaft, and the two compression frames are detachably installed on one fixed side plate respectively.
6. The metal rubber bearing bending stiffness test device under the high and low temperature environment according to claim 5, wherein the outer fixed frame bottom plate is fixed on a bottom plate, the bottom plate is connected with the test platform through a connecting bolt, and the heat insulation box is arranged on the bottom plate; the supporting device of the external shaft is arranged on the bottom plate, and the supporting structure of the angle sensor is arranged on the test platform through a U-shaped mounting hole in the bottom of the bottom plate of the angle sensor by using a bolt.
7. The apparatus for testing bending stiffness of a metal rubber bearing in high and low temperature environments of claim 1, wherein a temperature sensor opening is formed in a top surface of the thermal container, and a temperature sensor is disposed inside the thermal container from the temperature sensor opening and near the metal rubber bearing for controlling an ambient temperature of the thermal container during testing; the two side plates of the heat preservation box are provided with a heat preservation box air inlet and a heat preservation box air outlet, and the two side plates of the high-low temperature test box are provided with a test box air inlet and a test box air outlet; the air inlet of the heat preservation box is connected with the air outlet of the test box; the air outlet of the heat preservation box is connected with the air inlet of the test box through a fan.
8. The metal rubber bearing bending stiffness test device under the high and low temperature environment of claim 1, wherein the hydraulic actuator cylinder is fixed on a hydraulic actuator cylinder extension base, the hydraulic actuator cylinder extension base is fixed on a top beam of a force-bearing crossbeam, and the force-bearing crossbeam is fixed on a test platform through bolts.
9. The metal rubber bearing bending stiffness test device under the high and low temperature environment of claim 4, wherein the front end of the hydraulic actuating cylinder is an internal thread connector which is connected with an external thread of the connecting plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210352916.8A CN114509226B (en) | 2022-04-06 | 2022-04-06 | Metal rubber bearing bending rigidity test device under high and low temperature environment |
| PCT/CN2022/101044 WO2023193350A1 (en) | 2022-04-06 | 2022-06-24 | Bending rigidity test device for metal rubber bearing in high and low temperature environment |
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| CN202210352916.8A CN114509226B (en) | 2022-04-06 | 2022-04-06 | Metal rubber bearing bending rigidity test device under high and low temperature environment |
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| WO2023193350A1 (en) * | 2022-04-06 | 2023-10-12 | 天津航天瑞莱科技有限公司 | Bending rigidity test device for metal rubber bearing in high and low temperature environment |
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| CN117168812B (en) * | 2023-11-02 | 2024-03-08 | 南通市嘉诚机械有限公司 | Intensity testing device of bearing housing for automobile turbocharger |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487223A (en) * | 2013-09-18 | 2014-01-01 | 浙江工业大学 | Device for measuring flexural rigidity of structural member in high-low temperature environments |
| CN203606113U (en) * | 2013-09-18 | 2014-05-21 | 浙江工商大学 | Device accurately measuring flexural rigidity in high- and low-temperature environment |
| CN110231234A (en) * | 2019-07-09 | 2019-09-13 | 中国科学院金属研究所 | Test the experimental provision of the two-way alternating bending of steel wire in high and low temperature environment |
| CN110542523A (en) * | 2019-07-23 | 2019-12-06 | 中国人民解放军总参谋部第六十研究所 | Environmental temperature controllable elastic bearing bending stiffness detection system and detection method |
| DE102018005508A1 (en) * | 2018-07-04 | 2020-03-05 | Matthias D. Lange | Process for the invasive measurement of pressures, strains, vibrations, temperatures etc. in rubber and elastomer bearings in static and dynamic condition and under real conditions using hydraulic, pneumatic, electrical, dielectric, magnetic, magnetorheological, optical, radio and radiation technology or other sensors, the signals of which are recorded, processed and evaluated by a computer. |
| CN111157355A (en) * | 2020-02-14 | 2020-05-15 | 天津航天瑞莱科技有限公司 | Shell test device used in high-temperature axial compression composite loading environment |
| CN112254905A (en) * | 2020-10-15 | 2021-01-22 | 哈尔滨工业大学 | High-low temperature testing device for moment rotary rigidity |
| CN212674401U (en) * | 2020-09-01 | 2021-03-09 | 天津航天瑞莱科技有限公司 | Liquid nitrogen bifurcation pipeline double-platform shunt excitation vibration test system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448918A (en) * | 1994-08-31 | 1995-09-12 | The United States Of America As Represented By The Secretary Of The Navy | Biaxial compression testing device |
| CN106124337B (en) * | 2016-08-08 | 2023-03-31 | 浙江工业大学 | Device for high-temperature creep test and stress relaxation test of rubber elastomer |
| CN106124214B (en) * | 2016-09-07 | 2018-07-03 | 大连理工大学 | A kind of testing stand of bearings synthesis loading device |
| CN206876396U (en) * | 2017-05-11 | 2018-01-12 | 浙江省机电设计研究院有限公司 | Sealed bearings combination property simulation test machine |
| CN108982212B (en) * | 2018-06-05 | 2020-07-31 | 东北大学 | Composite material shaft tension-compression, bending, torsion and vibration comprehensive performance test platform |
| JP7462266B2 (en) * | 2019-06-12 | 2024-04-05 | 株式会社ジェイテクト | Rolling bearing test device and rolling bearing test method |
| CN111638131B (en) * | 2020-06-30 | 2023-03-31 | 株洲时代新材料科技股份有限公司 | Rubber bearing composite loading test device and test method |
| CN114002083A (en) * | 2021-12-06 | 2022-02-01 | 福州大学 | High-temperature static-load creep testing machine for metal rubber component and working method of high-temperature static-load creep testing machine |
| CN114509226B (en) * | 2022-04-06 | 2022-07-22 | 天津航天瑞莱科技有限公司 | Metal rubber bearing bending rigidity test device under high and low temperature environment |
-
2022
- 2022-04-06 CN CN202210352916.8A patent/CN114509226B/en active Active
- 2022-06-24 WO PCT/CN2022/101044 patent/WO2023193350A1/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487223A (en) * | 2013-09-18 | 2014-01-01 | 浙江工业大学 | Device for measuring flexural rigidity of structural member in high-low temperature environments |
| CN203606113U (en) * | 2013-09-18 | 2014-05-21 | 浙江工商大学 | Device accurately measuring flexural rigidity in high- and low-temperature environment |
| DE102018005508A1 (en) * | 2018-07-04 | 2020-03-05 | Matthias D. Lange | Process for the invasive measurement of pressures, strains, vibrations, temperatures etc. in rubber and elastomer bearings in static and dynamic condition and under real conditions using hydraulic, pneumatic, electrical, dielectric, magnetic, magnetorheological, optical, radio and radiation technology or other sensors, the signals of which are recorded, processed and evaluated by a computer. |
| CN110231234A (en) * | 2019-07-09 | 2019-09-13 | 中国科学院金属研究所 | Test the experimental provision of the two-way alternating bending of steel wire in high and low temperature environment |
| CN110542523A (en) * | 2019-07-23 | 2019-12-06 | 中国人民解放军总参谋部第六十研究所 | Environmental temperature controllable elastic bearing bending stiffness detection system and detection method |
| CN111157355A (en) * | 2020-02-14 | 2020-05-15 | 天津航天瑞莱科技有限公司 | Shell test device used in high-temperature axial compression composite loading environment |
| CN212674401U (en) * | 2020-09-01 | 2021-03-09 | 天津航天瑞莱科技有限公司 | Liquid nitrogen bifurcation pipeline double-platform shunt excitation vibration test system |
| CN112254905A (en) * | 2020-10-15 | 2021-01-22 | 哈尔滨工业大学 | High-low temperature testing device for moment rotary rigidity |
Non-Patent Citations (2)
| Title |
|---|
| 杨峰: "航空发动机复材外涵机匣静热强度试验方法研究", 《装备环境工程》 * |
| 金弘哲: "航天机构力—直线刚度高低温测试平台的研制", 《黑龙江大学工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023193350A1 (en) * | 2022-04-06 | 2023-10-12 | 天津航天瑞莱科技有限公司 | Bending rigidity test device for metal rubber bearing in high and low temperature environment |
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| CN114509226B (en) | 2022-07-22 |
| WO2023193350A1 (en) | 2023-10-12 |
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