CN209820683U - Rotary pressure sensor fatigue test assembly - Google Patents

Abstract

The utility model discloses a rotary pressure sensor fatigue test assembly, including the workstation, connect the power loading device on the workstation, install a plurality of groups's detection module on the workstation and install the detection sensor on the workstation, link to each other through the steering component between the adjacent detection module head and the tail and form the rotary detection structure, every group the detection module includes a plurality of end to end waiting to test the sensor, the power loading device is connected in the head of rotary detection structure and is carried out the power loading, the detection sensor is connected in the afterbody of rotary detection structure and is used for data detection; the utility model discloses the loading power of power loading device transmits in proper order through adjacent waiting to test the sensor, but a plurality of waiting to test the sensor of simultaneous test, and its test efficiency is high, and each waits to test the sensor and adopts serial-type revolution mechanic, makes it arrange in a flexible way, and the place is arranged to adaptable difference, has also reduced fatigue test device's occupation space.

Description

Rotary pressure sensor fatigue test assembly

Technical Field

The utility model belongs to the technical field of the sensor detects, a rotation pressure sensor fatigue test assembly is related to.

Background

The pressure sensor is widely applied to the fields of medical treatment, industry, national defense, aviation and the like, so the sensor has an indispensable important position in the modern industry, and the design and application of almost every modern project cannot leave various sensors; the detection of the sensor mass becomes particularly important. In order to carry out fatigue test on the pressure sensor, at present, fatigue test devices with various structures are also provided, the principle of the fatigue test device is that a manual loading mechanism or a hydraulic and pneumatic loading mechanism is generally adopted to provide loading force for the pressure sensor, the pressure sensor is connected with a controller, the controller records a test value and carries out analysis and calculation, and the fatigue test is carried out through repeated loading and unloading;

firstly, in order to detect a plurality of sensors simultaneously, particularly for a large-size tension sensor with a long length, the size of fatigue test equipment is often large, the occupied space is large, and the development of experiments is not facilitated; secondly, the existing test device uses hydraulic and pneumatic as power sources for loading, the problem of gas and liquid compression is difficult to ensure that the loading force is constant, and the loading force is difficult to accurately control; and the loading force of the existing test device directly acts on the pressure sensor, the loading force is changed instantly, the stability and reliability of loading are insufficient, the control of the loading force is not facilitated, and meanwhile, the damage of the pressure sensor is easily caused.

Therefore, a rotary pressure sensor fatigue test assembly is needed, the device can detect a plurality of sensors at the same time, the occupied space is small, the arrangement is easy, and the loading force can be continuously and stably applied to the pressure sensors;

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a rotary pressure sensor fatigue test assembly, the device can detect a plurality of sensors simultaneously, and occupation of land space is little, easily arranges, and the loading force can be sustainably, steadily exerted on pressure sensor;

the utility model discloses a rotation pressure sensor fatigue test assembly, including the workstation, connect the power loading device on the workstation, install the determine module of a plurality of groups on the workstation and install the detection sensor on the workstation, link to each other through turning to the subassembly between the adjacent determine module end to end and form the rotation and detect the structure, every group the determine module includes the test sensor of treating of a plurality of end to end, the power loading device is connected and is carried out the power loading in the head that the rotation detected the structure, the detection sensor is connected and is used for data detection in the afterbody that the rotation detected the structure.

Further, but power loading device includes vertical wobbling loading lever, drive loading lever wobbling drive assembly, axis level setting and axial sliding's loading post and drive loading post axial sliding's loading rope, the loading rope is connected on the loading post and both ends are walked around guider respectively and are connected in the both ends of loading lever, loading post tip is connected in the head that the gyration detected the structure.

Furthermore, the steering assembly comprises an equal-arm lever which is horizontally arranged on the workbench and can horizontally swing, and two ends of the equal-arm lever are respectively in rotating fit with the head and the tail of the adjacent conducting assemblies.

Furthermore, the adjacent sensors to be tested in each group of detection assemblies, the sensors to be tested and the steering assembly, and the sensors to be tested and the force loading device are connected through conducting columns, and the conducting columns can be axially and slidably mounted in the linear bearing seats.

Further, the driving assembly comprises a crankshaft, a crank connecting rod and a driving piece, wherein the crankshaft is installed on the workbench in a rotating fit mode, the crank connecting rod is in rotating fit with the crankshaft, the driving piece drives the crankshaft to rotate, and the other end of the crank connecting rod is in rotating fit with one end of the loading lever.

Furthermore, each guide pillar is provided with an anti-overturning device in a matching manner, at least one end of each guide pillar is of a plate-shaped structure, each anti-overturning device comprises two groups of anti-overturning bearings which are in rotating fit with the workbench, and the two groups of anti-overturning bearings are clamped on two sides of the plate-shaped structure end of each guide pillar.

Further, the loading rope includes right loading rope and left loading rope for the sectional type structure, right side loading rope winds on right pulley, the vertical connection in lever right-hand member of right side loading rope one end, and right pulley horizontal connection is walked around to the other end and is kept away from the sensor one end of waiting to test in the loading post axial, left side loading rope includes two and winds respectively on two left pulleys, left and right pulley rotates to cooperate on the workstation, and two left loading rope one end vertical connections are on left rope card, and left rope card is connected in loading lever left end, and left pulley horizontal connection is walked around on the rope round pin to the other end, rope round pin joint is close to the sensor one end of waiting to test in the loading post axial, and gyration detection structure head level both sides are located to two left loading rope branches.

Furthermore, loading weights can be detachably connected to two ends of the loading lever.

Further, the loading lever both ends are connected with the connecting rod, and one of them connecting rod screw thread is vertical to be connected in loading lever one end, but another connecting rod vertical slip runs through in the loading lever other end, two the connecting rod is connected in loading rope both ends, loading weight can be dismantled and connect on the connecting rod.

Further, the bottom of the connecting rod is connected with a weight tray with the diameter larger than that of the connecting rod, one end of the loading lever is provided with a waist hole, and the connecting rod can penetrate through the waist hole in a sliding manner.

The utility model has the advantages that:

the loading force of the force loading device of the utility model is transmitted in sequence through the adjacent sensors to be tested, a plurality of sensors to be tested can be tested simultaneously, the testing efficiency is high, each sensor to be tested adopts a series-type rotary structure, the arrangement is flexible, the device can adapt to different arrangement fields, and the occupation space of the fatigue testing device is also reduced;

the utility model discloses a loading lever is as power loading structure, can provide reciprocal pressure, the alternating loading power of pulling force for waiting to test the sensor through the loading lever, the loading power is invariable, loading force control is accurate, the length adjustable pressure of the both sides swing arm of regulation loading lever and the size of pulling force realize the not equivalence loading of pulling force, this loading lever is particularly useful for the loading of equivalent pressure and pulling force, the loading lever adopts the equal armed lever to be convenient for realize the equivalent loading of pressure and pulling force in order to improve and detect the precision, the cooperation of loading lever and loading rope, utilize the flexible steerable characteristic of loading rope, easily the whole of power loading device arranges;

the utility model discloses a wait arm lever realizes the gyration that the gyration angle is 180 as revolution mechanic, and this structure can reduce fatigue test device's occupation space greatly, reduces its occupation space of arranging and then reduces the arrangement degree of difficulty, can form mechanical gyration, also can guarantee the atress gyration, and guarantee that two sets of detection component atress size is the same, realize equivalence transmission loading force, and guarantee that the pressure or the pulling force type that the sensor to be tested in each set of detection component received are the same, make the atress of each sensor to be tested unified, guarantee that the atress operating mode of the sensor to be tested is unanimous, improved detection accuracy;

the utility model discloses a conduction post conduction loading force, conduction post are as the middleware, and the loading force does not directly act on waiting to test the sensor, has improved the stability and the reliability of loading force, can avoid acting on the sudden change of loading force on waiting to test the sensor, does benefit to the reliable control of loading force, and effective protection is simultaneously waited to test the sensor and is not damaged.

Drawings

The invention is further described with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of the present invention (with a worktable);

FIG. 2 is a schematic view of the general structure of the present invention (without a worktable);

FIG. 3 is a schematic view of the force application device configuration of FIG. 1;

FIG. 4 is a schematic structural view of the force application device of FIG. 2;

FIG. 5 is an enlarged view of point A of FIG. 4;

FIG. 6 is a schematic view of the steering assembly;

FIG. 7 is a schematic view of the structure at point B in FIG. 2;

FIG. 8 is a schematic structural view of the anti-tipping device;

Detailed Description

FIG. 1 is a schematic view of the overall structure of the present invention (with a worktable); FIG. 2 is a schematic view of the general structure of the present invention (without a worktable); FIG. 3 is a schematic view of the force application device configuration of FIG. 1; FIG. 4 is a schematic structural view of the force application device of FIG. 2; FIG. 5 is an enlarged view of point A of FIG. 4; FIG. 6 is a schematic view of the steering assembly; FIG. 7 is a schematic view of the structure at point B in FIG. 2; FIG. 8 is a schematic structural view of the anti-tipping device;

as shown in the figure: this embodiment rotation pressure sensor fatigue test assembly, including workstation 19, connect the power loading device on the workstation, install the determine module of a plurality of groups on the workstation and install the sensor 1 that detects on the workstation, link to each other through turning to the subassembly between the adjacent determine module head and the tail and form the rotation and detect the structure, every group the determine module includes the sensor 2 of waiting to test of a plurality of end to end, the power loading device is connected and is carried out the power loading in the head that the rotation detected the structure, the sensor that detects is connected in the afterbody that the rotation detected the structure and is used for data detection.

Referring to fig. 1, the workbench is a table-shaped structure formed by a table top and four legs, the workbench is not limited to the structure, and the workbench may also be a mounting frame or a concrete foundation for mounting various parts, which is not described in detail; the detection assemblies can be provided with a plurality of groups, the plurality of groups of detection assemblies are sequentially connected to form a rotation structure, the rotation structure can rotate by 90 degrees, 180 degrees or other rotation angles, the specific rotation direction and the rotation angles can be adaptively adjusted according to the actual arrangement field space, the number of the sensors to be tested in each group of detection assemblies can be adaptively adjusted according to the actual arrangement field and the lengths of the sensors to be tested, the detection sensor 1 is positioned at the tail part of the rotation detection structure and used for collecting stress data conducted to the detection sensor, and when any one of the sensors to be tested fails due to fatigue crack or fatigue fracture, the stress data at the detection sensor is abnormal, the detection sensor also adopts a pressure sensor in the implementation, and the pressure sensor is the prior art and is not specifically described in detail; in this embodiment, two groups of detection assemblies are used, each group of detection assemblies is provided with two sensors to be tested, and the rotation angle is 180 degrees, in this embodiment, only one steering assembly needs to be arranged to meet the steering requirement, as shown in fig. 1 and fig. 2, the force loading device is installed on the right side of the workbench, the steering assembly is installed on the left side of the workbench, the detection assembly is located between the force loading device and the steering assembly, the sensors to be tested are of a cylindrical structure, the loading force of the force loading device is transmitted sequentially through the adjacent sensors to be tested, a plurality of sensors to be tested can be tested simultaneously, the test efficiency is high, each sensor to be tested adopts a serial-type rotation structure, the arrangement is flexible, the device is adaptable to different arrangement sites, and the occupied space of the fatigue test device.

In this embodiment, the force loading device includes a loading lever 3 capable of swinging vertically, a driving assembly for driving the loading lever to swing, a loading column 4 whose axis is horizontally arranged and capable of sliding axially, and a loading rope 5 for driving the loading column to slide axially, the loading rope is connected to the loading column, two ends of the loading rope are respectively connected to two ends of the loading lever by bypassing the guiding device, and the end of the loading column is connected to the head of the rotation detection structure; the loading rope may be a one-segment structure, the middle position of the loading rope is fixedly connected to the loading column, two ends of the loading rope are connected to two ends of the loading lever, specifically, a connecting hole may be axially formed in the loading column, the loading rope penetrates through the connecting hole and is fastened by a radial screw, of course, other connecting structures may also be adopted, which are not described in detail, the loading rope may also be a two-segment structure, two ends of the two segments of loading rope are respectively connected to two ends of the loading column and two ends of the loading lever, which are not described in detail; referring to fig. 1 to 4, the middle of the loading lever is rotatably fitted to the bottom of the workbench, an installation frame 20 is disposed at the bottom of the workbench, the middle of the loading lever is rotatably fitted to the installation frame, the loading rope is vertically connected to two ends of the loading lever, the middle of the loading rope is horizontally connected to the loading column, the loading lever is driven by the driving assembly to swing so as to drive two ends of the loading rope to vertically reciprocate, the vertical motion at two ends of the loading rope is converted into horizontal motion at the middle of the loading rope by a guide device, the guide device can be a guide wheel or a guide shaft, the middle of the loading rope drives the loading column to axially move horizontally, and the horizontal reciprocating motion of the loading column provides reciprocating alternating pressure and tension loading force for the sensor to be tested,

the swing amplitudes of the two ends of the loading lever are adjusted by adjusting the lengths of the swing arms on the two sides of the loading lever, so that the sliding strokes on the two axial sides of the loading column 4 are adjusted, and unequal loading of pressure and tension is realized;

in the embodiment, the steering assembly comprises an equal-arm lever 6 which is horizontally arranged on the workbench and can horizontally swing, and two ends of the equal-arm lever are respectively in rotating fit with the head and the tail of the adjacent conducting assemblies; as shown in fig. 6, a steering base 21 is installed on the left side of the workbench, the steering base has a horizontal installation cavity, the middle position of the equal-arm lever is located in the installation cavity and forms horizontal rotation fit with the steering base through a rotating shaft, the equal-arm lever is used as a rotary structure, the rotation angle is 180 degrees, the structure can greatly reduce the occupied space of the fatigue test device, further reduce the arrangement difficulty, the end parts of the two groups of detection components are provided with equal-arm lever structures, a mechanical rotary structure can be formed, the forced rotation can be ensured, the two groups of detection assemblies are ensured to be the same in stress, equivalent transmission of loading force is realized, but also ensures that the types of pressure or tension borne by the sensors to be tested in the two groups of detection assemblies are the same, the stress of each sensor to be tested is uniform, so that the stress working conditions of the sensors to be tested are consistent, and the detection precision is improved.

In this embodiment, the sensors to be tested in each group of detection assemblies, the sensors to be tested and the steering assembly, and the sensors to be tested and the force loading device are connected through the guide pillars 7, and the guide pillars are axially slidably mounted in the linear bearing seats 8.

Referring to fig. 3 and 4, the loading column is a conductive column at the force loading device, that is, the loading column and the conductive column at the force loading device are the same component, two ends of the loading column are plate-shaped structures, the plate-shaped structures at the two ends are perpendicular to each other, the left end of the loading column and the end of the adjacent sensor to be tested form a rotating fit through a hinge, and the hinge is provided with a hinge shaft 23; the right end of the loading column is connected with a loading rope connecting shaft 22, a right loading rope is wound on the loading rope connecting shaft 22 to form connection with the right end of the conducting column, and the axes of the connecting shaft 22 and the hinge shaft 23 are mutually vertical and are jointly vertical to the axis of the loading column;

as shown in fig. 6 and other drawings, the two ends of the conducting column 7 between the sensor to be tested and the steering assembly are also in a plate-shaped structure perpendicular to each other, the two ends are hinged to the end of the adjacent sensor to be tested and the end of the rocker lever 6 through hinges, the hinged shafts at the two ends of the conducting column are perpendicular to each other and perpendicular to the axis of the conducting column, as shown in fig. 7, the two ends of the conducting column between the adjacent sensors to be tested are hinged to the end of the adjacent sensor to be tested through hinges, the hinged shafts at the two ends of the conducting column are perpendicular to each other and perpendicular to the axis of the conducting column, and the self-rotation condition of the conducting column can be improved through the structure;

each guide pillar and the linear bearing seat 8 form a linear bearing for guiding the guide pillars to axially slide, so that the sensor to be tested is subjected to stable axial pressure and tension, the detection structure is prevented from being influenced by bending moment and torque, and the sensor to be tested can be prevented from being damaged by bending moment or torque in the experiment process; the linear bearing is suitable for a system doing infinite linear motion, and has the advantages of small friction resistance, high motion precision and quick and sensitive motion;

in this embodiment, the driving assembly includes a crankshaft 9 mounted on the worktable in a rotationally fitting manner, a crank connecting rod 10 rotationally fitted with the crankshaft, and a driving member 11 for driving the crankshaft to rotate, and the other end of the crank connecting rod is rotationally fitted to one end of the loading lever; as shown in fig. 3, in the embodiment, the driving member is driven by a motor, the motor drives the crankshaft through a speed reducer, the driving member is fixedly mounted on a motor mounting bracket 24, the motor mounting bracket is mounted on the workbench, the crankshaft 9 is mounted on a crankshaft mounting bracket 25 in a rotating fit, the crankshaft and the crankshaft mounting bracket form a rotating fit through a bearing, the driving member drives the crankshaft to rotate and drives a loading lever to swing up and down through a crank connecting rod, the reciprocating alternate tension and pressure loading force is provided for the sensor to be tested through the swing of the lever, the crank connecting rod drives the loading lever to swing through a loading lever mechanism in a matching way, one rotation of the crank is a loading cycle, so that the loading of the multi-alternate compression stress and tension stress is conveniently realized, the loading force is stable, the millions of reciprocating rapid loading can be realized, and the, the manufacturing cost and the manufacturing cost are both low, the occupied space is small, and the structural compactness of the fatigue testing device is improved.

In this embodiment, each of the conducting columns is provided with an anti-overturning device in a matching manner, at least one end of each conducting column is of a plate-shaped structure, each anti-overturning device comprises two groups of anti-overturning bearings 13 which are in rotating fit with the workbench, and the two groups of anti-overturning bearings are clamped on two sides of the plate-shaped structure end of each conducting column; as shown in fig. 3, taking a conducting column, i.e., a loading column, at a force loading device as an example, and referring to fig. 8, an anti-rotation device matched with the loading column is installed on a workbench, a rectangular anti-turnover frame 26 is installed on the workbench, two bearing installation shafts are vertically installed in the anti-rotation frame, a group of bearings is installed on each bearing installation shaft, the end of the loading column is of a vertically extending plate-shaped structure, and two groups of bearings are clamped on two sides of the end of the loading column, in this embodiment, each group of bearings includes two bearings, and are clamped on two sides of the loading column through the two groups of bearings to limit rotation of the loading column with the central axis of the loading column as a center, and at the same time, friction force when the loading column slides axially is reduced, as shown in fig. 6 and 7, anti-rotation devices are cooperatively installed at a joint of adjacent sensors to be; the structure is matched with the linear bearing seat, so that the single-degree-of-freedom axial sliding of the conduction column can be guaranteed to form axially stable loading force conduction, the conduction column can be prevented from rotating to cause the sensor to be tested to receive torque, and the detection precision is improved.

In this embodiment, the loading rope is a segmented structure and comprises a right loading rope 5a and a left loading rope 5b, the right loading rope is wound on a right pulley 14, one end of the right loading rope is vertically connected to the right end of the lever, the other end of the right loading rope is horizontally connected to one end of the loading column, which is far away from the sensor to be tested, by winding the right pulley and the left loading rope, the left loading rope comprises two left loading ropes which are respectively wound on two left pulleys 15, the left and right pulleys are rotationally matched on the workbench, one ends of the two left loading ropes are vertically connected to a left rope clamp 16, the left rope clamp is connected to the left end of the loading lever, the other ends of the two left loading ropes are horizontally connected to a rope pin 17 by winding the left pulley, the rope pin is connected to one end of the; referring to fig. 3 and 4, the rope pin 17 is an axial structure radially penetrating through the left end of the loading column 4, the two sides of the outer circumference of the rope pin 17 in the axial direction are provided with winding grooves, the end parts of the two left loading ropes 5b are respectively wound on the rope pin and respectively positioned in the two winding grooves, the two winding grooves are symmetrically arranged in the front-back direction by taking the central axis of the conducting column as the center to improve the force of the two left loading ropes 5b loaded on the loading column, the worktable is provided with a pulley bracket 27, each pulley is rotatably and cooperatively installed on the pulley bracket, the two left pulleys are positioned on the two sides of the loading column 4, the loading column is coaxially connected with the adjacent sensor to be tested, an avoiding space is provided for the coaxial installation of the two left pulleys, so that the loading column and the adjacent sensor to be, the loading column is coaxially connected with the adjacent to-be-tested sensor, so that the axial stable conduction of the loading force to the corresponding to-be-tested sensor can be ensured.

In this embodiment, two ends of the loading lever 3 are detachably connected with loading weights 12; the loading weight can control the corresponding loading force, so that the control of the loading force is convenient, and in order to avoid the impact of the loading lever during swinging, an elastic part can be arranged between the two ends of the loading lever and the bottom of the workbench to reduce the impact.

In this embodiment, two ends of the loading lever 3 are connected with connecting rods 18, one of the connecting rods is vertically connected to one end of the loading lever 3 through a thread, the other connecting rod can vertically and slidably penetrate through the other end of the loading lever, the two connecting rods are connected to two ends of the loading rope 5, and the loading weights are detachably connected to the connecting rods; as shown in fig. 3 and 4, the left end of the loading lever is vertically screwed to the corresponding connecting rod, the right end of the loading lever is vertically slidably penetrated with the corresponding connecting rod, the left connecting rod is fixedly connected to the bottom of the left rope clamp 16, the right connecting rod is connected to the bottom end of the right loading rope through the right rope clamp, when the lever swings, the left end of the lever swings downwards, the left loading rope 5b is pulled downwards through the left connecting rod, the left loading rope axially pulls the loading column 4 to move leftwards together with the right loading rope shaft, so that the right loading rope pulls the right connecting rod and the corresponding loading weight to move upwards, when the left end of the lever swings upwards, the left end of the lever drives the left loading weight to move upwards through the corresponding connecting rod, and the right loading weight pulls the right connecting rod, the right loading rope and the; the structure is convenient for the detachable installation of the loading weight through the connecting rod 18, the connecting rod and the loading lever are matched to improve the stable and reliable installation environment for the weight, and meanwhile, the connecting rod and the loading lever are rigidly connected to facilitate the driving of the connecting rod.

In the embodiment, the bottom of the connecting rod is connected with a weight tray with the diameter larger than that of the connecting rod, one end of the loading lever is provided with a waist hole 3a, and the connecting rod can slidably penetrate through the waist hole; the weight tray is not shown in the figure, and is a disc-shaped structure coaxially connected to the bottom ends of the connecting rods, the structure is convenient for the installation of a standard weight, as shown in fig. 5, the waist hole structure is convenient for the corresponding connecting rods and the loading lever to move in the corresponding transverse direction in the swinging process of the loading lever, and the two connecting rods can be prevented from interfering with the loading lever in the swinging process of the loading lever.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (10)

1. The utility model provides a rotation pressure sensor fatigue test assembly which characterized in that: including the workstation, connect the power loading device on the workstation, install the determine module of a plurality of groups on the workstation and install the detection sensor on the workstation, link to each other through turning to the subassembly between the adjacent determine module end to end and form the rotation and detect the structure, every group the determine module includes a plurality of end to end treat the test sensor, power loading device connects and carries out the power loading in the head that the rotation detected the structure, the detection sensor is connected in the afterbody that the rotation detected the structure and is used for data detection.

2. The rotary pressure sensor fatigue test assembly of claim 1, wherein: but power loading device includes vertical wobbling loading lever, drive loading lever wobbling drive assembly, axis level setting and endwise slip's loading post and drive loading post endwise slip's loading rope, the loading rope is connected on the loading post and both ends are walked around guider respectively and are connected in the both ends of loading lever, loading post tip is connected in the head that the gyration detected the structure.

3. The rotary pressure sensor fatigue test assembly of claim 1, wherein: the steering assembly comprises an equal-arm lever which is horizontally arranged on the workbench and can horizontally swing, and two ends of the equal-arm lever are respectively in rotating fit with the head and the tail of the adjacent conducting assembly.

4. The rotary pressure sensor fatigue test assembly of claim 1, wherein: and the adjacent sensors to be tested in each group of detection assemblies, the sensors to be tested and the steering assembly, and the sensors to be tested and the force loading device are connected through conducting columns, and the conducting columns can be axially and slidably arranged in the linear bearing seats.

5. The rotary pressure sensor fatigue test assembly of claim 2, wherein: the driving assembly comprises a crankshaft, a crank connecting rod and a driving piece, the crankshaft is arranged on the workbench in a rotating fit mode, the crank connecting rod is in rotating fit with the crankshaft, the driving piece drives the crankshaft to rotate, and the other end of the crank connecting rod is in rotating fit with one end of the loading lever.

6. The rotary pressure sensor fatigue test assembly of claim 4, wherein: each transmission guide post is provided with an anti-overturning device in a matched mode, at least one end of each transmission post is of a plate-shaped structure, each anti-overturning device comprises two groups of anti-overturning bearings which are in rotating fit with the workbench, and the two groups of anti-overturning bearings are clamped on two sides of the end portion of the plate-shaped structure of the transmission post.

7. The rotary pressure sensor fatigue test assembly of claim 2, wherein: the loading rope includes right loading rope and left loading rope for the sectional type structure, right side loading rope winds on right pulley, the vertical connection in lever right-hand member of right side loading rope one end, and right pulley horizontal connection is walked around to the other end in loading post axial is kept away from and is waited test sensor one end, left side loading rope includes two and winds respectively on two left pulleys, and two left loading rope one end vertical connections are in left rope fastening, and left rope fastening is connected in loading lever left end, and left pulley horizontal connection is walked around to the other end on the rope round pin, the rope round pin is connected in loading post axial and is close to and waits test sensor one end, and gyration detection structure head level both sides are located to two left loading ropes branch, left and right pulley rotates to cooperate on the workstation.

8. The rotary pressure sensor fatigue test assembly of claim 2, wherein: and loading weights are detachably connected to two ends of the loading lever.

9. The rotary pressure sensor fatigue test assembly of claim 8, wherein: the loading lever both ends are connected with the connecting rod, and one of them connecting rod screw thread is vertical to be connected in loading lever one end, but another connecting rod vertical slip runs through in the loading lever other end, two the connecting rod is connected in loading rope both ends, the loading weight can be dismantled and connect on the connecting rod.

10. The rotary pressure sensor fatigue test assembly of claim 9, wherein: the bottom of the connecting rod is connected with a weight tray with the diameter larger than that of the connecting rod, one end of the loading lever is provided with a waist hole, and the connecting rod can penetrate through the waist hole in a sliding manner.