CN210269168U - Rotary mechanical shaft system elevation change testing device - Google Patents

Abstract

The utility model discloses a rotating machinery shafting elevation changes testing arrangement, including U type pipe, tube cap, bearing structure, pressurization structure and distance measuring sensor, the U type pipe has first opening and second opening, first opening with the second opening sets up relatively, the liquid is equipped with in the U type pipe, the tube cap with U type pipe fixed connection, and the lid closes first opening, bearing structure is located the U type pipe is kept away from first opening with second open-ended one end, the pressurization structure with first opening switch-on, the distance measuring sensor embedding the tube cap. The device for testing the elevation change of the rotating mechanical shaft system is high in measurement precision and small in error.

Description

Rotary mechanical shaft system elevation change testing device

Technical Field

The utility model relates to a technical field of vibration test especially relates to a rotating machinery shafting elevation changes testing arrangement.

Background

Traditional rotating machinery shafting elevation changes testing arrangement measures bearing elevation change value through the linker principle, connects by communicating pipe between the linker, because communicating pipe is longer, when liquid flows, produces the bubble in the communicating pipe very easily to it is great to lead to the measuring error.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotating machinery shafting elevation changes testing arrangement, aim at solving traditional rotating machinery shafting elevation changes testing arrangement and measure bearing elevation change value through the linker principle, connect by communicating pipe between the linker, because communicating pipe is longer, when liquid flows, bubble in the communicating pipe very easily to lead to the great technical problem of measuring error.

In order to achieve the above object, the utility model provides a rotating machinery shafting elevation changes testing arrangement, including U type pipe, tube cap, bearing structure, pressurization structure and distance measuring sensor, the U type pipe has first opening and second opening, first opening with the second opening sets up relatively, be equipped with liquid in the U type pipe, the tube cap with U type pipe fixed connection, and the lid closes first opening, bearing structure is located the U type pipe is kept away from first opening with second open-ended one end, the pressurization structure with first opening switch-on, the distance measuring sensor embedding the tube cap.

Wherein, the support structure comprises a base, a support table, a cylinder, a push rod, a leather cup, an air inlet pipe, a telescopic rod, a piston, a pedal, a reset spring, a check valve, an air outlet pipe and a seal valve, the support table is fixedly connected with the base and positioned between the base and the U-shaped pipe, the cylinder is fixedly connected with the support table and positioned on the peripheral side of the support table, the cylinder is provided with a telescopic cavity, a pressurizing cavity and a plurality of air inlets, the pressurizing cavity is positioned below the telescopic cavity, the plurality of air inlets are uniformly distributed on the bottom surface of the cylinder, the air inlets are communicated with the pressurizing cavity, the push rod is inserted into the cylinder and is in sliding connection with the cylinder, the push rod part is positioned in the pressurizing cavity, the leather cup is fixedly connected with the push rod and is positioned in the cylinder, one end of the air inlet pipe is communicated with the telescopic cavity, the other end of the telescopic rod is communicated with the pressurizing cavity, one end of the telescopic rod is fixedly connected with the U-shaped pipe, the other end of the telescopic rod is inserted into the barrel and is connected with the barrel in a sliding mode, the telescopic rod is located in the telescopic cavity, the piston is fixedly connected with the telescopic rod and is located in the telescopic cavity, the pedal is fixedly connected with the push rod and is located at one end, far away from the leather cup, of the push rod, the reset spring is abutted between the pedal and the base, the one-way valve is fixedly connected with the air inlet pipe and is located in the air inlet pipe, the air outlet pipe is inserted into the barrel and is communicated with the telescopic cavity, and the sealing valve covers the air outlet pipe.

The sealing valve comprises an outer pipe, an inner pipe and a compression spring, the inner pipe is connected with the outer pipe in a sliding mode and is located in the outer pipe, the inner pipe is fixedly connected with the air outlet pipe and is communicated with the air outlet pipe, the inner pipe is provided with a plurality of air outlet holes, the air outlet holes are evenly distributed on the periphery side of the inner pipe, and the compression spring is abutted between the outer pipe and the inner pipe and located in the outer pipe.

Wherein, the pressurizing structure comprises a pressurizing cylinder, a pressurizing rod, a balancing weight, a sliding plug, a return spring, a pressurizing pipe and a fastening component, the pressurizing cylinder is provided with a cavity and an air outlet, the air outlet is communicated with the cavity, the pressurizing rod is inserted into the pressurizing cylinder and is in sliding connection with the pressurizing cylinder, the part of the pressurizing rod is positioned in the pressurizing cavity, the balancing weight is fixedly connected with the pressurizing rod and is positioned at one end of the pressurizing rod far away from the pressurizing cylinder, the sliding plug is fixedly connected with the pressurizing rod and is in sliding connection with the pressurizing cylinder, the sliding plug is positioned in the pressurizing cylinder, the return spring is abutted between the balancing weight and the cylinder body and is arranged around the pressurizing rod, one end of the pressurizing pipe is inserted into the cylinder body and is positioned in the air outlet, the other end of the pressurizing pipe is inserted into the pipe cover and is communicated with the U-shaped pipe, the fastening component is located at one end, far away from the push rod, of the balancing weight and used for fixing the pressurizing component.

Wherein, fastening components includes the strong magnet, the strong magnet with balancing weight fixed connection.

Wherein, the fastening components still include mounting panel and fastening bolt, the mounting panel with the strong magnet is articulated, and is located the strong magnet is kept away from the one end of balancing weight, the mounting panel is L shape, and has a plurality of mounting holes, fastening bolt with mounting panel threaded connection, and the part is located in the mounting hole.

The utility model discloses a rotating machinery shafting elevation change testing arrangement, when using, the survey crew passes through pressurization structrual installation is on the bearing frame, pass through the support subassembly adjustment U type pipe with pressurization structure is in same level, and at this moment, the displacement that the bearing vibration takes place transmits on the pressurization structure, when the bearing vibration takes place the vibrational force extrusion the pressurization structure, the pressurization structure passes through compressed air in the U type pipe through first opening, because the tube cap lid closes first opening, consequently compressed air can not leak from first opening, and the pressure that U type pipe is close to first open-ended one end at this moment is greater than atmospheric pressure, and liquid flows to the second opening, the U type pipe is close to first open-ended liquid level is lower, and the U type pipe is close to second open-ended one end liquid level risees, when the bearing vibrates and takes place the vibrational force and stretch during the pressurization structure, the air is followed the first opening entering of U type pipe in the pressurization structure, this moment the U type pipe is close to the pressure of first open-ended one end is less than atmospheric pressure, and liquid toward first opening flows, the U type pipe is close to first open-ended liquid level rises the manuscript, and the U type pipe is close to the lower height of second open-ended one end liquid level, distance measuring sensor measures the liquid level height that changes in real time to on transmitting the real-time change value data of liquid level height to outside detector, compare through the detector analysis, alright measure accurate shafting elevation change value. The utility model discloses a rotating machinery shafting elevation changes testing arrangement, simple structure, convenient to use, precision are high, the error is little, have solved traditional rotating machinery shafting elevation changes testing arrangement and have measured bearing elevation change value through the linker principle, connect by communicating pipe between the linker, because communicating pipe is longer, when liquid flows, bubble production in the communicating pipe very easily to lead to the great technical problem of measuring error.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the utility model discloses rotating machinery shafting elevation changes testing arrangement's schematic structure view.

Fig. 2 is a schematic structural diagram of the support structure of the present invention.

Fig. 3 is a schematic structural view of the sealing valve of the present invention.

100-rotating machinery shafting elevation change testing device, 10-U-shaped pipe, 20-pipe cover, 30-support structure, 50-pressurizing structure, 60-distance measuring sensor, 11-first opening, 12-second opening, 31-base, 32-support table, 33-barrel, 34-push rod, 35-leather cup, 36-air inlet pipe, 37-telescopic rod, 38-piston, 39-pedal, 40-reset spring, 41-one-way valve, 42-air outlet pipe, 43-sealing valve, 331-telescopic cavity, 332-pressurizing cavity, 333-air inlet hole, 431-outer pipe, 432-inner pipe, 433-compressing spring, 434-air outlet hole, 51-pressurizing cylinder, 52-pressurizing rod, 53-counterweight block, weight block, 54-sliding plug, 55-return spring, 56-pressure pipe, 57-fastening component, 511-cavity, 512-air outlet, 571-strong magnet, 572-mounting plate, 573-fastening bolt and 574-mounting hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of 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. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, the utility model provides a rotating machinery shafting elevation change testing arrangement 100, including U type pipe 10, tube cap 20, bearing structure 30, pressurization structure 50 and ranging sensor 60, U type pipe 10 has first opening 11 and second opening 12, first opening 11 with second opening 12 sets up relatively, be equipped with liquid in the U type pipe 10, tube cap 20 with U type pipe 10 fixed connection to the lid closes first opening 11, bearing structure 30 is located the one end that U type pipe 10 kept away from first opening 11 with second opening 12, pressurization structure 50 with first opening 11 communicates, ranging sensor 60 imbeds tube cap 20.

In this embodiment, in the elevation change testing device 100 for the shafting of the rotary machine, when in use, a measurer is installed on a bearing seat through the pressurizing structure 50, the U-shaped pipe 10 and the pressurizing structure 50 are adjusted to be at the same horizontal height through the support assembly, at this time, the displacement generated by bearing vibration is transmitted to the pressurizing structure 50, when the pressurizing structure 50 is pressed by vibration force generated by bearing vibration, the pressurizing structure 50 inputs compressed air into the U-shaped pipe 10 through the first opening 11, because the pipe cover 20 covers the first opening 11, the compressed air cannot leak from the first opening 11, at this time, the pressure of one end of the U-shaped pipe 10 close to the first opening 11 is greater than atmospheric pressure, liquid flows to the second opening 12, and the liquid level of the U-shaped pipe 10 close to the first opening 11 is low, and the liquid level of one end of the U-shaped pipe 10 close to the second opening 12 rises, when the bearing vibrates and generates a vibration force to stretch the pressurizing structure 50, air enters the pressurizing structure 50 from the first opening 11 of the U-shaped pipe 10, at this time, the pressure of one end of the U-shaped pipe 10 close to the first opening 11 is smaller than the atmospheric pressure, liquid flows to the first opening 11, the liquid level of the U-shaped pipe 10 close to the first opening 11 rises, the liquid level of one end of the U-shaped pipe 10 close to the second opening 12 is lower, the distance measuring sensor 60 measures the changed liquid level in real time, and transmits the real-time change value data of the liquid level to an external detector, and the accurate shafting elevation change value can be measured through analysis and comparison of the detector. It should be noted that the support mechanism may use a rack and pinion lifter, and the lifting function is realized by engaging a rack and a pinion, and the pressurizing structure 50 may use an air bag made of flexible material such as silica gel, and is communicated with the first opening 11 of the U-shaped tube 10 through a pipeline.

Further, the support structure 30 includes a base 31, a support platform 32, a cylinder 33, a push rod 34, a leather cup 35, an air inlet pipe 36, an expansion link 37, a piston 38, a pedal 39, a return spring 40, a one-way valve 41, an air outlet pipe 42 and a sealing valve 43, the support platform 32 is fixedly connected with the base 31 and is located between the base 31 and the U-shaped pipe 10, the cylinder 33 is fixedly connected with the support platform 32 and is located on the periphery of the support platform 32, the cylinder 33 has an expansion cavity 331, a pressurization cavity 332 and a plurality of air inlet holes 333, the pressurization cavity 332 is located below the expansion cavity 331, the plurality of air inlet holes 333 are evenly distributed on the bottom surface of the cylinder 33, the air inlet holes 333 are communicated with the pressurization cavity 332, the push rod 34 is inserted into the cylinder 33 and is slidably connected with the cylinder 33, and part of the push rod 34 is located in the pressurization cavity 332, the leather cup 35 is fixedly connected with the push rod 34 and is positioned in the cylinder body 33, one end of the air inlet pipe 36 is communicated with the telescopic cavity 331, the other end of the air inlet pipe is communicated with the pressurizing cavity 332, one end of the telescopic rod 37 is fixedly connected with the U-shaped pipe 10, the other end of the telescopic rod 37 is inserted into the cylinder body 33 and is slidably connected with the cylinder body 33, part of the telescopic rod 37 is positioned in the telescopic cavity 331, the piston 38 is fixedly connected with the telescopic rod 37 and is positioned in the telescopic cavity 331, the pedal 39 is fixedly connected with the push rod 34 and is positioned at one end of the push rod 34 far away from the leather cup 35, the return spring 40 is abutted between the pedal 39 and the base 31, the one-way valve 41 is fixedly connected with the air inlet pipe 36 and is positioned in the air inlet pipe 36, the air outlet pipe 42 is inserted into the cylinder body 33 and is communicated with the, the sealing valve 43 covers the outlet pipe 42.

In this embodiment, when the U-shaped tube 10 needs to be lifted, a measurer repeatedly steps on the pedal 39, when the measurer steps on the U-shaped tube, the return spring 40 contracts, at this time, the push rod 34 pulls the cup 35 to move downward, the cup 35 can play a role of making air flow in a single direction, the cup is shaped like a bowl, when the user moves downward, because the outer circular arc of the cup 35 has little friction with the wall of the tube 33, air can smoothly enter the pressurizing cavity 332 from the air inlet 333 by using the upper and lower pressure, when the user releases the pedal 39, the return spring 40 returns, the pressurizing rod 52 drives the cup 35 to move upward, the air pressure in the pressurizing cavity 332 of the tube 33 is strong, the cup 35 is pressed and expanded to make the outer edge of the cup 35 tightly contact with the wall of the tube to increase the air tightness, so that the air pressure in the pressurizing cavity 332 is increased, compressed air enters the telescopic cavity 331 from the pressurizing cavity 332 through the air inlet passage, because the check valve 41 is installed in the air inlet pipe 36, compressed air can only enter the telescopic cavity 331 from the pressurizing cavity 332, but cannot enter the pressurizing cavity 332 from the telescopic cavity 331, at this time, the pressure in the telescopic cavity 331 increases, so as to push the piston 38 to move upward, the telescopic rod 37 moves under the action of the piston 38, and then gradually jacks up the turntable on the support platform 32, the sealing valve 43 is used for sealing the air outlet pipe 42, when the telescopic rod 37 needs to be put down, the sealing valve 43 can be opened to realize an air bleeding function for the telescopic cavity 331, the support structure 30 adopts the above structure, which not only saves labor, but also is more convenient to adjust the lifting of the U-shaped pipe 10, and can quickly adjust the U-shaped pipe 10 to the same horizontal height as the pressurizing structure 50, thereby further reducing the measurement error of the device 100 for testing the elevation change of the rotating mechanical shafting.

Further, the sealing valve 43 includes an outer tube 431, an inner tube 432 and a compression spring 433, the inner tube 432 is slidably connected to the outer tube 431 and is located inside the outer tube 431, the inner tube 432 is fixedly connected to the air outlet tube 42 and is communicated with the air outlet tube 42, the inner tube 432 has a plurality of air outlets 434, the plurality of air outlets 434 are uniformly distributed on the peripheral side of the inner tube 432, and the compression spring 433 is abutted between the outer tube 431 and the inner tube 432 and is located inside the outer tube 431.

In this embodiment, when the horizontal height of the U-shaped tube 10 needs to be lowered, the outer tube 431 of the sealing valve 43 is pulled, the compression spring 433 is elongated, at this time, the outer tube 431 slides relative to the inner tube 432, the air outlet 512 on the inner tube 432 is exposed, air is discharged from the telescopic cavity 331 to the air outlet 434 through the air outlet tube 42, at this time, the piston 38 drives the telescopic rod 37 to slide downward, so as to lower the U-shaped tube 10, the operation is fast and convenient, the U-shaped tube 10 and the pressurizing structure 50 can be quickly maintained at the same horizontal height, and the error of the device 100 for testing the elevation change of the rotating mechanical shafting is reduced.

Further, the pressurizing structure 50 includes a pressurizing cylinder 51, a pressurizing rod 52, a weight 53, a sliding plug 54, a return spring 55, a pressurizing pipe 56 and a fastening assembly 57, the pressurizing cylinder 51 has a cavity 511 and an air outlet 512, the air outlet 512 is communicated with the cavity 511, the pressurizing rod 52 is inserted into the pressurizing cylinder 51 and is slidably connected with the pressurizing cylinder 51, the pressurizing rod 52 is partially located in the pressurizing cavity 332, the weight 53 is fixedly connected with the pressurizing rod 52 and is located at one end of the pressurizing rod 52 far away from the pressurizing cylinder 51, the sliding plug 54 is fixedly connected with the pressurizing rod 52 and is slidably connected with the pressurizing cylinder 51, the sliding plug 54 is located in the pressurizing cylinder 51, the return spring 55 is held between the weight and the cylinder 33 and is arranged around the pressurizing rod 52, one end of the pressurizing pipe 56 is inserted into the cylinder 33, and is located in the air outlet 512, the other end is inserted into the pipe cover and is communicated with the U-shaped pipe 10, and the fastening component 57 is located at one end of the counterweight block 53 far away from the push rod 34 and is used for fixing the pressurizing component.

In this embodiment, during measurement, the pressurizing structure 50 is fixed to a bearing seat by the fastening assembly 57, when the pressurizing rod 52 is pressed by the vibration force generated by the vibration of the bearing, the pressurizing cylinder 51 and the sliding plug 54 are displaced relative to each other, the air in the cavity 511 is compressed by the sliding plug 54 and then is input into the U-shaped tube 10, so that the liquid level in the U-shaped tube 10 changes, the pressurizing cylinder 51 returns to the initial position by the action of the return spring 55, when the pressurizing rod 52 is stretched by the vibration force generated by the vibration of the bearing, the pressurizing cylinder 51 and the sliding plug 54 are displaced relative to each other, the air in the U-shaped tube 10 is sucked into the cavity 511 by the sliding plug 54, so that the liquid level in the U-shaped tube 10 changes, and the pressurizing cylinder 51 returns to the initial position by the action of the return spring 55, the bearing elevation can be accurately measured by matching with the distance measuring sensor 60.

Further, the fastening assembly 57 includes a strong magnet 571, and the strong magnet 571 is fixedly connected to the counterweight 53.

In this embodiment, the strong magnet 571 can make the rotating mechanical shaft system elevation change testing device 100 be adsorbed on the bearing seat through its own magnetism, so as to reduce the risk that the rotating mechanical shaft system elevation change testing device 100 falls off, thereby improving the measurement accuracy of the rotating mechanical shaft system elevation change testing device 100.

Further, the fastened assembly 57 further includes a mounting plate 572 and a fastening bolt 573, the mounting plate 572 is hinged to the strong magnet 571 and located at one end of the strong magnet 571 far away from the counterweight 53, the mounting plate 572 is L-shaped and has a plurality of mounting holes 574, and the fastening bolt 573 is screwed with the mounting plate 572 and is partially located in the mounting holes 574.

In this embodiment, after the strong magnet 571 is adsorbed on the bearing seat, the mounting plate 572 is rotated to close the bearing seat by the mounting plate 572, and at this time, the fastening bolt 573 is rotated to abut against the bearing seat by the fastening bolt 573, so that the device 100 for testing the elevation change of the rotating mechanical shaft system is firmly mounted on the bearing seat, and the measurement error of the device 100 for testing the elevation change of the rotating mechanical shaft system is further reduced.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a rotating machinery shafting elevation changes testing arrangement, a serial communication port, including U type pipe, tube cap, bearing structure, pressurization structure and ranging sensor, the U type pipe has first opening and second opening, first opening with the second opening sets up relatively, the liquid is equipped with in the U type pipe, the tube cap with U type pipe fixed connection, and the lid closes first opening, bearing structure is located the U type pipe is kept away from first opening with second open-ended one end, the pressurization structure with first opening switch-on, the ranging sensor embedding the tube cap.

2. The device for testing the elevation change of the shafting of the rotary machine according to claim 1, wherein the supporting base structure comprises a base, a supporting table, a cylinder, a push rod, a leather cup, an air inlet pipe, a telescopic rod, a piston, a pedal, a return spring, a check valve, an air outlet pipe and a sealing valve, the supporting table is fixedly connected with the base and is located between the base and the U-shaped pipe, the cylinder is fixedly connected with the supporting table and is located on the peripheral side of the supporting table, the cylinder is provided with a telescopic cavity, a pressurizing cavity and a plurality of air inlet holes, the pressurizing cavity is located below the telescopic cavity, the plurality of air inlet holes are uniformly distributed on the bottom surface of the cylinder, the air inlet holes are communicated with the pressurizing cavity, the push rod is inserted into the cylinder and is slidably connected with the cylinder, the push rod is partially located in the pressurizing cavity, and the leather cup is fixedly connected, and is located in the barrel, intake pipe one end with flexible chamber switch-on, the other end with the pressurization chamber switch-on, telescopic link one end with U type pipe fixed connection, the other end inserts the barrel, and with barrel sliding connection, just flexible pole part is located flexible intracavity, the piston with telescopic link fixed connection, and be located flexible intracavity, the footboard with push rod fixed connection, and be located the push rod is kept away from the one end of leather cup, reset spring supports to hold between footboard and the base, the check valve with intake pipe fixed connection, and be located in the intake pipe, the outlet duct inserts the barrel, and with flexible chamber switch-on, the seal valve covers the outlet duct.

3. The device for measuring the elevation change of the shafting of the rotary machine according to claim 2, wherein the sealing valve comprises an outer tube, an inner tube and a compression spring, the inner tube is slidably connected to the outer tube and is located in the outer tube, the inner tube is fixedly connected to the air outlet tube and is connected to the air outlet tube, the inner tube has a plurality of air outlets, the air outlets are uniformly distributed on the circumferential side of the inner tube, and the compression spring is supported between the outer tube and the inner tube and is located in the outer tube.

4. The device for measuring the elevation change of a shafting of a rotary machine according to claim 2, wherein the pressurizing structure comprises a pressurizing cylinder, a pressurizing rod, a balancing weight, a sliding plug, a return spring, a pressurizing pipe and a fastening component, the pressurizing cylinder has a cavity and an air outlet, the air outlet is communicated with the cavity, the pressurizing rod is inserted into the pressurizing cylinder and is slidably connected with the pressurizing cylinder, the pressurizing rod is partially located in the pressurizing cavity, the balancing weight is fixedly connected with the pressurizing rod and is located at one end of the pressurizing rod far away from the pressurizing cylinder, the sliding plug is fixedly connected with the pressurizing rod and is slidably connected with the pressurizing cylinder, the sliding plug is located in the pressurizing cylinder, the return spring is abutted between the balancing weight and the cylinder and is arranged around the pressurizing rod, one end of the pressurizing pipe is inserted into the cylinder, and the fastening component is positioned at one end of the balancing weight, which is far away from the push rod, and is used for fixing the pressurizing structure.

5. The device for measuring the elevation change of the rotating mechanical shaft system according to claim 4, wherein the fastening assembly comprises a strong magnet, and the strong magnet is fixedly connected with the balancing weight.

6. The device for measuring elevation change of a rotating mechanical shaft system according to claim 5, wherein the fastening assembly further comprises a mounting plate and a fastening bolt, the mounting plate is hinged to the strong magnet and located at one end of the strong magnet, which is far away from the counterweight, the mounting plate is L-shaped and has a plurality of mounting holes, and the fastening bolt is in threaded connection with the mounting plate and partially located in the mounting holes.

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