CN220063342U - A accredited testing organization for circumference vibrations analysis - Google Patents

Abstract

The utility model belongs to the technical field of test equipment, in particular to a test mechanism for circumferential vibration analysis, which comprises a fixed seat, a rotating part and a vibration table, wherein connecting parts are connected to the rotating parts, the rotating parts are connected with a power source so that at least two rotating parts can synchronously rotate, the rotating parts drive the connecting parts to revolve around the rotating axis of the rotating parts, the vibration table is rotationally connected with the connecting parts so that the longitudinal direction of the vibration table can be changed, the vibration table is used for setting a to-be-tested part, the vibration table can always keep corresponding movement in the same direction state, continuous vibration test is carried out on the to-be-tested part in the same installation direction state, and a plurality of connecting parts are used for improving the stability of the test mechanism, realizing the test of the circumferential movement and changing the longitudinal direction of the to-be-tested part, meeting the vibration test requirement of the to-be-tested part, and improving the test effect.

Description

A accredited testing organization for circumference vibrations analysis

Technical Field

The utility model belongs to the technical field of test equipment, and particularly relates to a test mechanism for circumferential vibration analysis.

Background

When the circumferential vibration test is carried out on the to-be-tested piece, a vibration test mechanism is needed to simulate the actual working condition environment of the to-be-tested piece, and particularly, along with the development of the automobile industry, the test of various parts and components on the automobile is more and more harsh, wherein the test conditions of a plurality of products comprise the working condition of the circumferential vibration.

For example, VDA life cycle test equipment, a vehicle pipeline joint is used for implementing pressure endurance, vibration and temperature cycle tests with a certain rule, and the pressure, flow and temperature of a medium in a tested workpiece and the situations of vibration of the workpiece and the temperature of the environment are strictly controlled; the oil PVT test board is used for carrying out pressure endurance, vibration and temperature cycle tests with a certain rule on an air conditioner pipeline for a vehicle, and has strict control on the pressure, flow and temperature of a medium in a tested workpiece, the vibration of the workpiece and the temperature of the environment where the workpiece is positioned; the two test tables contain the circumferential vibration working conditions of the workpiece, and the circumferential vibration table is an indispensable part of the test tables.

But current circumference vibrations platform is difficult to realize the circumference vibrations test that can change in longitudinal direction to in the test procedure, circumference vibrations platform's stability is relatively poor, and the piece that awaits measuring that circumference vibrations platform bore hardly keeps the fixed state of same direction, makes the piece that awaits measuring also can take place the change of fixed direction when moving, and the top surface direction of vibrations platform can change very easily promptly, and consequently stability is weaker, and then influences the circumference vibrations test effect problem of piece that awaits measuring.

To this end, the utility model provides a test mechanism for circumferential vibration analysis.

Disclosure of Invention

In order to overcome the defects in the prior art, the purpose is to realize vibration test on the to-be-tested piece which can change in position in the longitudinal direction, and the stability of the test mechanism is higher, so that the test mechanism for circumferential vibration analysis is provided.

The utility model solves the technical problems and aims to overcome the technical problems, and adopts the following technical scheme: the utility model relates to a testing mechanism for circumferential vibration analysis, which comprises:

the rotating parts are at least two, the rotating axes of a plurality of rotating parts are parallel to each other, the rotating parts are connected with connecting parts, the rotating parts are connected with a power source so that the at least two rotating parts can synchronously rotate, and the rotating parts drive the connecting parts to make revolution motion around the rotating axes of the rotating parts;

the vibration table is rotationally connected with the connecting piece, so that the longitudinal direction of the vibration table can be changed, and the vibration table is used for setting a piece to be tested.

In some embodiments, the rotation axes of the plurality of rotation members are all located in the same horizontal plane, so that the longitudinal direction of the vibration table can be changed and the top surface of the vibration table is in a horizontal state.

In some embodiments, two rotating members are provided, an intermediate shaft is arranged between the two rotating members, gears are connected to the two rotating members and one intermediate shaft, and the gears are sequentially meshed;

the power source is connected with one of the rotating members.

In some embodiments, the rotating member is provided with a containing box, a containing cavity is formed in the containing box, and the gears are all arranged in the containing cavity;

the top position that holds the case is equipped with will hold the oil filler point of chamber and outside intercommunication, one side that holds the case is equipped with will hold the oil outlet of chamber and outside intercommunication, the inside of oil filler point and oil outlet all is equipped with the shutoff.

In some embodiments, the accommodating box comprises a sealing cover, a sealing gasket and a box body, the sealing cover can be covered on an opening of the box body to form a closed accommodating cavity, the gear is arranged in the accommodating cavity, a sealing surface is arranged on one side surface of the sealing cover and one side surface of the box body, a preset distance is reserved between the sealing surface and the gear, and the sealing gasket matched with the sealing surface is arranged at the sealing surface.

In some embodiments, the connecting pieces are connected to two end positions of the rotating piece, so that at least four connecting pieces are connected with the vibrating table;

the power source is connected with the rotating piece through the connecting piece, and the axis of the output shaft of the power source and the rotating axis of the rotating piece are arranged in a collinear way.

In some embodiments, the connecting piece is a crankshaft, a connecting rod journal of the crankshaft is connected with the vibration table, two ends of the crankshaft are both first mounting ends, and one end of the rotating piece, which is connected with the crankshaft, of the power source is both second mounting ends; the first mounting end and the second mounting end are inserted and connected;

the first mounting end is of a polygonal column structure, and the second mounting end is a hole matched with the first mounting end; and/or the second mounting end is of a polygonal column structure, and the first mounting end is a hole matched with the second mounting end;

when the first mounting end is of a polygonal column structure, a jackscrew is connected to the second mounting end and used for screwing the jackscrew so that the jackscrew abuts against the first mounting end; when the second installation end is of a polygonal column structure, the first installation end is connected with a jackscrew, and the jackscrew is used for screwing the jackscrew so that the jackscrew abuts against the second installation end.

In some embodiments, the rotating member is rotatably connected to a support, and the support includes a fixed seat and a lower support seat, where the lower support seat is rotatably connected to the rotating member, and the lower support seat is fixedly connected to the fixed seat;

an upper supporting seat is rotationally connected to the connecting piece, and the tops of the upper supporting seats are connected with a vibrating table together;

at least one first cushion block is arranged between the lower supporting seat and the fixed seat, and at least one second cushion block is arranged between the upper supporting seat and the vibrating table.

In some embodiments, the power source comprises a motor, a speed reducer and a coupling, the motor, the speed reducer and the coupling are sequentially connected, the coupling is connected with the rotating piece through the connecting piece, and the axis of the shaft of the coupling and the rotation axis of the rotating piece are arranged in a collinear manner;

the shaft between the speed reducer and the coupler is provided with a recognized part, and a position-fixed recognition part is arranged close to the recognized part.

In some embodiments, the testing mechanism is externally covered with a temperature control box, so that the piece to be tested is positioned inside the temperature control box, and the power source is positioned outside the temperature control box.

Compared with the prior art, the testing mechanism for circumferential vibration analysis has the following beneficial effects:

1. the utility model provides a testing mechanism for circumferential vibration analysis, so that a vibration table vibrates, and the top surface of the vibration table can always keep corresponding movement in the same direction, thereby ensuring that a piece to be tested always performs continuous vibration test in the same installation direction, such as: under the horizontal state, through setting up a plurality of connecting pieces in order to improve testing mechanism's stability, realized can change and do the test of circular motion in longitudinal direction, satisfied the vibration test demand that can change vertically of piece that awaits measuring, improved test effect.

2. The utility model provides a testing mechanism for circumferential vibration analysis, which is characterized in that an intermediate shaft is arranged between rotating parts, the intermediate shaft is connected with the two rotating parts through gear engagement, so that one power source realizes synchronous rotation of the two rotating parts, synchronous rotation is stable, and compared with a plurality of power sources which respectively drive corresponding rotating parts to rotate, synchronous rotation of the rotating parts is realized, the synchronous control precision of a gear engagement transmission structure is higher, and the control is simpler.

3. The utility model provides a testing mechanism for circumferential vibration analysis, which is characterized in that a gear is arranged in a containing cavity of a containing box, the containing cavity can keep the gear in an isolated state with the external environment, the containing box comprises a sealing cover, a sealing gasket and a box body, a contact surface between the sealing cover and the box body is a sealing surface, and a preset distance is reserved between the sealing surface and the gear, so that the containing cavity in the box body is matched with the gear, on one hand, the area of the sealing surface is increased, and particularly, the distance between the containing cavity and the external environment can be increased in the plane of the sealing surface, so that the sealing effect is improved; on the other hand, the volume of the accommodating cavity is reduced, so that the use amount of lubricating oil can be reduced when the lubricating oil is injected.

4. The utility model provides a testing mechanism for circumferential vibration analysis, which is characterized in that a connecting piece is designed into a crankshaft, first mounting ends are arranged at two ends of the crankshaft, a second mounting end is arranged at the output ends of a rotating piece and a power source, the first mounting end and the second mounting end are inserted and connected, so that power transmission is realized, quick assembly and disassembly can be realized, and vibration testing requirements of different vibration amplitudes are met.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a perspective view of a test mechanism in an embodiment of the utility model;

FIG. 2 is a perspective view of the internal drive mechanism of the test mechanism in an embodiment of the utility model;

FIG. 3 is a first perspective view of a containment box in an embodiment of the utility model;

fig. 4 is a second perspective view of the containing box in an embodiment of the present utility model.

In the figure: the rotary member 100, the intermediate shaft 110, the gear 120, the housing case 130, the housing chamber 131, the oil filler hole 132, the oil outlet hole 133, the seal plug 134, the seal cap 135, the seal gasket 136, the case 137, the seal face 138,

A connecting member 200, a crankshaft 210, a first mounting end 220, a second mounting end 230, a jackscrew 240,

A power source 300, a motor 310, a speed reducer 320, a coupling 330, a member to be identified 340, a member to be identified 350,

A vibration table 400, an upper support base 410, a second cushion block 420,

500 parts to be measured,

The support 600, the fixing base 610, the lower support base 620, the first cushion block 630,

A temperature control box 700.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

For simplicity of the drawing, only the parts relevant to the utility model are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, in the description of the present utility model, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, this embodiment provides a testing mechanism for circumferential vibration analysis, including a rotating member 100 and a vibration table 400, where the rotating member 100 is connected to a power source 300, the power source 300 drives the rotating member 100 to rotate, the rotating member 100 drives a connecting member 200 to revolve around a rotation axis of the rotating member 100, and because the rotating member 100 and the connecting member 200 are not arranged in a collinear manner, the rotation axes of the rotating members 100 are also parallel to each other, and the single connecting member 200 does not keep the same horizontal plane to do circumferential motion, so that the vibration table 400 is driven to move synchronously during the movement of the connecting member 200, and the vibration table 400 can change in positions in different horizontal planes to realize vibration testing of the circumferential motion of the vibration table 400, so as to simulate testing of the to-be-tested member 500 under the vibration working condition, especially testing of parts on an automobile, and effectively simulate actual use working conditions of the parts of the automobile, so as to test stability of performance of the automobile when the automobile parts are used under the vibration working condition.

In the prior art, when the circumferential vibration test is performed on the part 500 to be tested, a vibration testing mechanism is required to be used to simulate the actual working condition environment of the part 500 to be tested, especially, along with the development of the automobile industry, the test of various parts and components on the automobile is more and more harsh, wherein the testing conditions of a few of the products include the working condition of the circumferential vibration.

For example, VDA life cycle test equipment, a vehicle pipeline joint is used for implementing pressure endurance, vibration and temperature cycle tests with a certain rule, and the pressure, flow and temperature of a medium in a tested workpiece and the situations of vibration of the workpiece and the temperature of the environment are strictly controlled; the oil PVT test board is used for carrying out pressure endurance, vibration and temperature cycle tests with a certain rule on an air conditioner pipeline for a vehicle, and has strict control on the pressure, flow and temperature of a medium in a tested workpiece, the vibration of the workpiece and the temperature of the environment where the workpiece is positioned; both of these test stations include a circumferential vibration regime for the workpiece, of which circumferential vibration table 400 is an integral part.

However, the conventional circumferential vibration table 400 is difficult to realize the circumferential vibration test capable of changing positions in the longitudinal direction, and in the test process, the stability of the circumferential vibration table 400 is poor, and the to-be-tested piece 500 borne by the circumferential vibration table 400 is difficult to maintain a fixed state in the same direction, so that the to-be-tested piece 500 moves while the fixed direction is changed, that is, the direction of the top surface of the vibration table 400 is easy to change, so that the stability is weak, and the problem of the circumferential vibration test effect of the to-be-tested piece 500 is further affected.

In order to solve the above technical problems, the present utility model provides a preferred embodiment, specifically: a testing mechanism for circumferential vibration analysis aims to realize circumferential testing of a piece 500 to be tested which can be changed in position in the longitudinal direction, and the testing mechanism is higher in stability.

A test mechanism for circumferential vibration analysis is provided, by rotating a plurality of rotating members 100 in synchronization, the rotation axes of the rotating members 100 are parallel to each other, and the rotation axes of the rotating members 100 can be kept in an inclined state or a horizontal state, preferably in a horizontal state, to simulate a circumferential vibration test of a member 500 to be tested under a condition that a position change occurs in a longitudinal direction, in which there are two cases, first: the plurality of rotating members 100 are in an inclined and mutually parallel arrangement state, the positions of the member 500 to be tested in the longitudinal direction and the plurality of horizontal directions are subjected to circumferential vibration test, and the top surface of the vibration table 400 is in an inclined state; second,: the plurality of rotating members 100 are in the same horizontal plane and parallel to each other, and the top surface of the vibration table 400 is in a horizontal state; the power source 300 drives the rotating member 100 to rotate, the power source 300 can be one or a plurality of rotating members 100 to enable the rotating members 100 to synchronously rotate, the rotating members 100 can further drive the corresponding connecting members 200 to rotate, the connecting members 200 are arranged in a non-collinear mode with the rotating members 100, and the axes of the connecting members 200 are equal to the rotating axes of the corresponding rotating members 100, so that the connecting members 200 revolve around the corresponding rotating members 100, the connecting members 200 can perform the same circumferential rotation to realize synchronous movement of the connecting members 200, the connecting members 200 can synchronously drive the vibrating table 400 to move, the vibrating table 400 vibrates along the set direction, and the top surface direction of the vibrating table 400 is always unchanged when the vibrating table 400 moves due to the rotating connection of the connecting members 200 which synchronously move, the to-be-measured member 500 is arranged on the surface of the vibrating table 400, and the to-be-measured member 500 only moves in the set direction, and does not rotate and changes, such as: when the vibration table 400 keeps a horizontal installation state, the rotating member 100 and the connecting member 200 keep a horizontal state at the moment, and when the vibration table 400 moves, the vibration table 400 can always keep a corresponding movement in a horizontal state, so that the to-be-tested member 500 is ensured to be always in a horizontal state for continuous vibration test, the stability of a test mechanism is improved, the test that the vibration table can change in the longitudinal direction and perform circular movement is realized, the vibration test requirement of the to-be-tested member 500, which can change in the longitudinal direction, is met, and the test effect is improved.

As shown in fig. 1, in an embodiment, in order to meet specific use condition requirements, especially in the automotive field, since vibration inside an engine or a gearbox is mostly sourced from a vibration source which can be changed in a longitudinal direction, in order to better simulate the longitudinal vibration, and the product is mostly set in a horizontal plane, therefore, by locating the rotation axes of the rotating members 100 in the same horizontal plane, when the rotating members 100 rotate, the rotating members 100 will drive the connecting members 200 to revolve around the rotation axes thereof, so that the connecting members 200 keep synchronous movement, the plurality of connecting members 200 will jointly drive the vibration table 400 to move, so that the top surface of the vibration table 400 keeps a horizontal state, and then the to-be-tested member 500 arranged at the top of the vibration table 400 keeps a horizontal placement state all the time and is subjected to continuous vibration test, so as to meet the simulated vibration requirement of the specific condition.

As shown in fig. 1 and fig. 2, in one embodiment, through setting the intermediate shaft 110 between the rotating members 100, the intermediate shaft 110 is engaged with two rotating members 100 through the gear 120, at this time, one rotating member 100 is driven by the power source 300 to rotate, one rotating member 100 drives the intermediate shaft 110 through the gear 120, the intermediate shaft 110 drives the other rotating member 100 through the gear 120 to rotate, one rotating member 100 rotates in opposite directions and at the same rotation speed as the intermediate shaft 110, the intermediate shaft 110 rotates in opposite directions and at the same rotation speed as the other rotating member 100, so that the rotation directions of the two rotating members 100 are the same and at the same rotation speed, the power source 300 drives one rotating member 100 to rotate, then the other rotating member 100 also synchronously rotates, the two rotating members 100 further drive the corresponding connecting member 200 to synchronously move, the connecting member 200 drives the vibration table 400 to realize vibration test on the member 500 to be tested, and because the engaged connection of the gears 120 ensures that the synchronous rotation of the two rotating members 100 is realized, and the synchronous rotation is stable, compared with the synchronous rotation of the corresponding rotating members 100 driven by the power sources 300, the synchronous rotation of the corresponding rotating members 100 can be realized, and the synchronous rotation of the other rotating member 100 can be controlled by adopting a simple and synchronous structure, such as that the synchronous rotation control can be realized in another embodiment, the synchronous rotation structure, and the synchronous control is realized by the following: the transmission structure such as the belt pulley and the connecting rod is used for realizing transmission between the rotating members 100, ensuring that the two rotating members 100 rotate synchronously, and is not limited to the above.

As shown in fig. 1 to 4, in one embodiment, by disposing the gear 120 inside the accommodating cavity 131 of the accommodating case 130, the accommodating cavity 131 keeps the gear 120 isolated from the external environment, so as to avoid the problem that dust and other foreign matters directly fall onto the surface of the gear 120 and affect the service life of the gear 120, and simultaneously by disposing the oil filling hole 132 and the oil outlet 133 on the accommodating case 130, in a daily operating state, the oil filling hole 132 and the oil outlet 133 are sealed by the sealing plug 134, in an oil shortage state inside the accommodating case 130, the sealing plug 134 of the oil filling hole 132 is opened, lubricating oil is injected into the accommodating case 130 through the oil filling hole 132, so that the gears 120 maintain a lubricated state, after the lubricating oil is injected, the sealing plug 134 seals the oil filling hole 132, and after long-term use, abrasion occurs between the gears 120, therefore, a large amount of metal scraps are mixed in the lubricating oil in the accommodating box 130, the abrasion problem between the gears 120 is aggravated by the metal scraps, and therefore, the sealing plug 134 of the oil outlet 133 is opened, the lubricating oil mixed with the metal scraps in the accommodating box 130 flows out through the oil outlet 133, after the lubricating oil in the accommodating box 130 is completely led out, the oil outlet 133 is closed, then the oil inlet is opened, new lubricating oil is injected through the oil inlet, after the injection is finished, the oil inlet is closed again, so that the lubricating oil in the accommodating box 130 is replaced, the metal scraps in the accommodating box 130 are cleared away in time, the service life of the gears 120 is prolonged, and the gears 120 are in a sealed lubricating space for transmission work through the accommodating box 130, so that the influence of external environment on the gears 120 is reduced, and the service life of the gears 120 is prolonged.

In one embodiment, for easy assembly, the accommodating case 130 includes a cover 135, a sealing gasket 136 and a case 137, so as to realize rapid assembly, the sealing gasket 136 is located between the cover 135 and the case 137, the sealing gasket 136 can effectively seal the connection position between the cover 135 and the case 137, so as to reduce the risk of oil seepage, and the sealing gasket 136 can be made of rubber sealing material, which is not limited thereto, preferably: under the test environment condition of working conditions, the fluororubber can have better low temperature resistance and high temperature resistance, the contact surface between the sealing cover 135 and the box 137 is a sealing surface 138, and the sealing surface 138 is kept at a preset distance from the gear 120, so that the accommodating cavity 131 in the accommodating box 130 is matched with the gear 120, on one hand, the area of the sealing surface 138 is increased, and particularly in the plane of the sealing surface 138, the distance between the accommodating cavity 131 and the external environment can be increased, and the sealing effect is further improved; on the other hand, the volume of the accommodating chamber 131 is reduced, so that the amount of the lubricating oil can be reduced when the lubricating oil is injected.

In one embodiment, the connecting pieces 200 are disposed at two ends of the rotating piece 100 to form a plurality of connecting pieces 200, the plurality of connecting pieces 200 can drive the vibration table 400 to move together, the power source 300 is connected with the rotating piece 100 through the connecting pieces 200, the plurality of connecting pieces 200 form stable support and transmission for the vibration table 400, and further the top of the vibration table 400 can bear relatively large bearing force and eccentric force, so that after various pieces 500 to be tested are mounted on the surface of the vibration table 400, the vibration table 400 can also keep stable rotation.

In one embodiment, the connecting piece 200 is designed as the crankshaft 210, the connecting rod journal of the crankshaft 210 is parallel to but not collinear with the rotating piece 100, when the rotating piece 100 rotates, the rotating piece 100 drives the crankshaft 210 to rotate, so that the connecting rod journal of the crankshaft 210 revolves around the rotation axis of the rotating piece 100, and then the connecting rod journal drives the vibration table 400 to move and vibrate, the two ends of the crankshaft 210 are provided with the first mounting end 220, the output ends of the rotating piece 100 and the power source 300 are provided with the second mounting end 230, the first mounting end 220 and the second mounting end 230 are connected in an inserting manner so as to realize power transmission, quick assembly and disassembly can be realized, and the vibration test requirements of different vibration amplitudes are met by quickly replacing different crankshafts 210, the distances between the connecting rod journals of different crankshafts 210 and the crankshaft journals of the crankshafts 210 are different so that different connecting rod journals have different revolution radiuses, and further different vibration amplitudes are realized, and therefore, the first mounting end 220 and the second mounting end 230 are designed in an adapting manner so as to meet the requirements of quick assembly and disassembly, the quick assembly and disassembly are convenient, the quick assembly and disassembly are realized, the quick assembly and disassembly are realized, and the quick assembly and the connection are realized.

In other embodiments, the first mounting end 220 is configured as a polygonal cylindrical structure, the first mounting end 220 of the polygonal cylindrical structure is matched with the hole of the second mounting end 230, so as to achieve quick connection or disassembly between the first mounting end 220 and the second mounting end 230, and the polygonal cylindrical structure is more beneficial to connection firmness and transmission, or the second mounting end 230 is configured as a polygonal cylindrical structure, and the first mounting end 220 is a hole matched with the second mounting end 230, so as to achieve quick connection and disassembly between the second mounting end 230 and the first mounting end 220;

in another embodiment, in order to avoid the problem of displacement between the first mounting end 220 and the second mounting end 230 under the working condition, the jackscrew 240 is used to reinforce the first mounting end 220 and the second mounting end 230, specifically, when the first mounting end 220 is in a polygonal column structure, the jackscrew 240 is arranged on the second mounting end 230, the jackscrew 240 is controlled to move towards the first mounting end 220 by screwing the jackscrew 240 in a threaded manner, and finally, the end of the jackscrew 240 is pressed against the surface of the first mounting end 220, so that the first mounting end 220 and the second mounting end 230 are completely fixed, and when the first mounting end 220 and the second mounting end 230 need to be disassembled, only the jackscrew 240 is needed to be reversely screwed, so that the jackscrew 240 stops pressing the first mounting end 220, and in other embodiments, particularly, when the second mounting end 230 is in a polygonal column structure, the jackscrew 240 is arranged on the first mounting end 220, so that the same principle of reinforcing the first mounting end 220 and the second mounting end 230 are realized.

In one embodiment, by further limiting the rotating member 100 and the connecting member 200, by rotationally connecting the rotating member 100 to the lower supporting seat 620, rotationally connecting the connecting member 200 to the upper supporting seat 410, connecting the lower supporting seat 620 to the fixed seat 610 through the first cushion block 630, and connecting the upper supporting seat 410 to the vibration table 400 through the second cushion block 420, rotational stability of the rotating member 100 and the connecting member 200 is achieved, and in other embodiments, by providing snap springs on the sides of the upper supporting seat 410 and the lower supporting seat 620, connection of the lower supporting seat 620 to the rotating member 100 is reinforced, or connection of the upper supporting seat 410 to the connecting member 200 is reinforced, so that risk of occurrence of play is reduced; and the number of the first cushion blocks 630 and the second cushion blocks 420 is adjusted to quickly adjust the overall height of the testing mechanism, so as to meet different height testing requirements.

In one embodiment, by controlling the motor 310 to operate, in order to adjust the vibration frequency, monitor whether the mechanism rotates steadily, preferably, a feedback servo motor 310 is adopted, the servo motor 310 may drive the speed reducer 320 to realize forward rotation, reverse rotation or forward and reverse switching, etc., after the speed reducer 320 decelerates, the speed reducer 330 may drive the rotating member 100 to rotate through the connecting member 200, so as to finally realize vibration of the vibration table 400, in another embodiment, by setting the identified member 340 on a shaft between the speed reducer 320 and the coupling 330, the identified member 340 may be a screw screwed onto the shaft or a protruding structure, etc., and setting the identified member 350 in a fixed state near the identified member 340, the identified member 350 may use an inductive probe, when the identified member 340 rotates to the relative position of the identified member 350, the identified member 340 may be identified by the identified member 350 and output a corresponding signal, after completing a vibration test, the identified member 340 may be identified by the identified member 350, so as to stop the output shaft of the motor at a specific point, to realize an automatic reset function, or may end a test under abnormal condition, as follows: reset of the mechanism after power-off or sudden stop, etc., is not limited thereto.

In one embodiment, the temperature of the temperature control box 700 is adjusted by integrally placing the part 500 to be tested on the vibration table 400 inside the temperature control box 700, so as to simulate the working temperature environment of the part 500 to be tested or the working environment under extreme conditions, and synchronously perform vibration test to test the working performance of the part 500 to be tested under the temperature and vibration conditions, and the power source 300 is arranged outside the temperature control box 700, so as to avoid the influence on the normal working of the motor 310 under higher or lower temperature conditions.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A test mechanism for circumferential vibration analysis, comprising:

the rotating parts are at least two, the rotating axes of a plurality of rotating parts are parallel to each other, the rotating parts are connected with connecting parts, the rotating parts are connected with a power source so that the at least two rotating parts can synchronously rotate, and the rotating parts drive the connecting parts to make revolution motion around the rotating axes of the rotating parts;

the vibration table is rotationally connected with the connecting piece, so that the longitudinal direction of the vibration table can be changed, and the vibration table is used for setting a piece to be tested.

2. A test mechanism for circumferential vibration analysis according to claim 1, wherein,

the rotation axes of the rotating parts are all positioned in the same horizontal plane, so that the longitudinal direction of the vibration table can be changed and the top surface of the vibration table is in a horizontal state.

3. A test mechanism for circumferential vibration analysis according to claim 2, wherein,

the number of the rotating parts is two, an intermediate shaft is arranged between the two rotating parts, gears are connected to the two rotating parts and one intermediate shaft, and the gears are sequentially meshed and connected;

the power source is connected with one of the rotating members.

4. A test mechanism for circumferential vibration analysis according to claim 3, wherein,

the rotary part is provided with a containing box, a containing cavity is formed in the containing box, and the gears are all arranged in the containing cavity;

the top position that holds the case is equipped with will hold the oil filler point of chamber and outside intercommunication, one side that holds the case is equipped with will hold the oil outlet of chamber and outside intercommunication, the inside of oil filler point and oil outlet all is equipped with the shutoff.

5. A test mechanism for circumferential vibration analysis according to claim 4, wherein,

the container comprises a sealing cover, a sealing gasket and a container body, wherein the sealing cover can be covered on an opening of the container body to form a closed container cavity, the gear is arranged in the container cavity, a sealing surface is arranged on one side surface of the sealing cover, opposite to the container body, a preset distance is reserved between the sealing surface and the gear, and the sealing gasket matched with the sealing surface is arranged at the position of the sealing surface.

6. A test mechanism for circumferential vibration analysis according to any one of claims 1-5,

the connecting pieces are connected to the two ends of the rotating piece so that at least four connecting pieces are connected with the vibrating table;

the power source is connected with the rotating piece through the connecting piece, and the axis of the output shaft of the power source and the rotating axis of the rotating piece are arranged in a collinear way.

7. A test mechanism for circumferential vibration analysis according to any one of claims 1-5,

the connecting piece is a crankshaft, connecting rod journals of the crankshaft are connected with the vibration table, two ends of the crankshaft are first mounting ends, and one ends of the rotating piece, which are connected with the crankshaft, of the power source are second mounting ends; the first mounting end and the second mounting end are inserted and connected;

the first mounting end is of a polygonal column structure, and the second mounting end is a hole matched with the first mounting end; and/or the second mounting end is of a polygonal column structure, and the first mounting end is a hole matched with the second mounting end;

when the first mounting end is of a polygonal column structure, a jackscrew is connected to the second mounting end and used for screwing the jackscrew so that the jackscrew abuts against the first mounting end; when the second installation end is of a polygonal column structure, the first installation end is connected with a jackscrew, and the jackscrew is used for screwing the jackscrew so that the jackscrew abuts against the second installation end.

8. A test mechanism for circumferential vibration analysis according to any one of claims 1-5,

the rotating piece is rotationally connected to the support, the support comprises a fixed seat and a lower supporting seat, the lower supporting seat is rotationally connected with the rotating piece, and the lower supporting seat is fixedly connected with the fixed seat;

an upper supporting seat is rotationally connected to the connecting piece, and the tops of the upper supporting seats are connected with a vibrating table together;

at least one first cushion block is arranged between the lower supporting seat and the fixed seat, and at least one second cushion block is arranged between the upper supporting seat and the vibrating table.

9. A test mechanism for circumferential vibration analysis according to any one of claims 1-5,

the power source comprises a motor, a speed reducer and a coupler, wherein the motor, the speed reducer and the coupler are sequentially connected, the coupler is connected with the rotating piece through the connecting piece, and the axis of the shaft of the coupler and the rotation axis of the rotating piece are arranged in a collinear manner;

the shaft between the speed reducer and the coupler is provided with a recognized part, and a position-fixed recognition part is arranged close to the recognized part.

10. A test mechanism for circumferential vibration analysis according to any one of claims 1-5,

the outside cover of the testing mechanism is provided with a temperature control box, so that the piece to be tested is positioned in the temperature control box, and the power source is positioned outside the temperature control box.