CN111256995B - Evaluation device for damage degree of motor rolling bearing - Google Patents
Evaluation device for damage degree of motor rolling bearing Download PDFInfo
- Publication number
- CN111256995B CN111256995B CN202010089153.3A CN202010089153A CN111256995B CN 111256995 B CN111256995 B CN 111256995B CN 202010089153 A CN202010089153 A CN 202010089153A CN 111256995 B CN111256995 B CN 111256995B
- Authority
- CN
- China
- Prior art keywords
- pipe
- clamping
- hole
- tapered roller
- roller bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
Abstract
The invention relates to an evaluation device for the damage degree of a motor rolling bearing, which comprises a workbench and a transverse plate arranged on the workbench, and the device also comprises: the clamping component is rotated: the device is used for realizing the clamping and rotation of the inner side of the tapered roller bearing sample; the floating clamping component: the device is used for realizing floating clamping of the outer side and the top of the tapered roller bearing sample; a hydraulic control assembly: the clamping device is arranged on the transverse plate and connected with an external hydraulic system to control the clamping action of the floating clamping assembly and the rotating clamping assembly; a detection component: the device is used for detecting the vibration condition and the rotation deviation condition of the tapered roller bearing sample in the rotation process of the tapered roller bearing sample; feeding and classifying assembly: the device is arranged in front of a cross beam of an inverted U-shaped support frame fixed on a workbench and used for realizing the feeding and classification treatment of the tapered roller bearing samples. Compared with the prior art, the invention has the advantages of ingenious conception, floating clamping, accurate evaluation and the like.
Description
Technical Field
The invention relates to the field of bearing detection and evaluation equipment, in particular to an evaluation device for the damage degree of a motor rolling bearing.
Background
The tapered roller bearing belongs to an important part of a rolling bearing along with the development and progress of the prior art, and is widely applied due to the advantages of being capable of bearing radial load and unidirectional axial load, the mechanical equipment has high requirements on each part, the tapered roller bearing has high reliability as an important part, and for tapered roller bearing production enterprises, quality detection and evaluation before leaving a factory on the tapered roller bearing are indispensable procedures, but the production enterprises generally produce the tapered roller bearing on a large scale, the number of evaluation and detection on the tapered roller bearing is large, and few devices for evaluating and detecting the tapered roller bearing are provided.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an evaluation device for the damage degree of a motor rolling bearing.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an evaluation device of motor antifriction bearing damage degree, includes the workstation, installs the diaphragm on the workstation, and the device still includes:
the clamping component is rotated: the device is used for realizing the clamping and rotation of the inner side of the tapered roller bearing sample;
the floating clamping component: the device is used for realizing floating clamping of the outer side and the top of the tapered roller bearing sample;
a hydraulic control assembly: the clamping device is arranged on the transverse plate and connected with an external hydraulic system to control the clamping action of the floating clamping assembly and the rotating clamping assembly;
a detection component: the device is used for detecting the vibration condition and the rotation deviation condition of the tapered roller bearing sample in the rotation process of the tapered roller bearing sample;
feeding and classifying assembly: the device is arranged in front of a cross beam of an inverted U-shaped support frame fixed on a workbench and used for realizing the feeding and classification treatment of the tapered roller bearing samples.
The rotary clamping assembly comprises a telescopic shaft, a rotating shaft concentrically fixed at the top of the telescopic shaft, a rotary power unit and a pair of inner side clamping units symmetrically arranged along the axis of the rotating shaft, the rotating shaft consists of an integrally formed main body and a hollow upper boss, the main body is in transmission connection with a rotating power unit, the top of the upper boss is connected with a hollow disc, the outer side of the upper boss is provided with a hollow annular cover body, the inner side clamping unit comprises a first hydraulic rod, an L-shaped connecting piece, a first sliding block and a clamping block which are connected in sequence and provided with a first spring at a movable part, the top surface of the disc is provided with a first guide rail used for realizing the radial sliding of the first sliding block, the first hydraulic rod is fixedly arranged on the bottom surface of the disc, and the pair of clamping blocks which are oppositely arranged realize the inner side clamping and the synchronous rotation of the tapered roller bearing sample through the telescopic action of the first hydraulic rod.
The rotating power unit comprises a second motor, a first gear, a second gear, a connecting shaft and a third gear which are sequentially driven, the third gear is meshed with a gear column fixed on the outer side of the rotating shaft main body for transmission, and the second motor is installed in a vertical third groove formed in the top surface of the transverse plate.
The floating clamping components are oppositely arranged in two groups by taking the axis of the rotating shaft as a symmetrical shaft, each group of floating clamping components comprises a horizontal moving unit, a vertical moving unit and an inverted L-shaped fixed block which are connected in sequence, the horizontal moving unit comprises a second hydraulic rod, a second sliding block and a support rod, wherein the second hydraulic rod is provided with a second spring at a movable part, the second sliding block slides on a second guide rail horizontally arranged on the upper surface of the transverse plate, the support rod is longitudinally arranged, the vertical moving unit comprises a third hydraulic rod, a third sliding block and a horizontal connecting rod, the third hydraulic rod is fixed to the upper portion of the supporting rod, the movable portion of the third hydraulic rod is provided with a third spring, the third sliding block slides on a third guide rail vertically installed on the supporting rod, the horizontal connecting rod is used for connecting the third sliding block and the fixing block, and the pair of inverted L-shaped fixing blocks which are arranged oppositely achieves floating clamping of the outer side and the top of the tapered roller bearing sample under the action of the second hydraulic rod and the third hydraulic rod.
The hydraulic control assembly comprises a hollow vertical pipe, an electric telescopic rod arranged at the bottom of an inner cavity of the vertical pipe, and a first piston which is in transmission connection with the electric telescopic rod and is in sealing fit with the inner wall of the vertical pipe, wherein the inner cavity of the vertical pipe is divided into an upper cavity and a lower cavity by the first piston, the middle part of the first piston is provided with a fourth through hole communicated with the upper cavity and the lower cavity in the vertical pipe, a one-way valve communicated from the upper cavity to the lower cavity in a single-phase manner is arranged in the fourth through hole, the lower cavity is connected with an external hydraulic system by a fifth through hole arranged on the side surface of the pipe wall at the lower part of the vertical pipe, 6 sixth through holes are also sequentially arranged on the pipe wall of the vertical pipe from bottom to top, wherein the first through hole, the second through hole and the third through hole at the lower part are provided with one-way valves which only can flow out from the interior of the vertical pipe, and, the first piston sequentially blocks three sixth through holes which are sequentially arranged in the vertical pipe through up-and-down movement in the vertical pipe.
The first sixth through hole located in the lower portion is communicated with the annular inner cavity of the cover body through the first liquid inlet pipe, the annular inner cavity of the annular cover body is communicated with a liquid inlet of the first hydraulic rod through a first groove in the upper boss and an inner cavity of the disc, the fourth sixth through hole located in the upper portion is communicated with the annular inner cavity of the cover body through the first liquid outlet pipe, the third sixth through hole located in the lower portion is communicated with a liquid inlet of the third hydraulic rod through a first three-way pipe and a third liquid inlet pipe, the sixth through hole located in the upper portion is communicated with a liquid outlet of the third hydraulic rod through a third three-way pipe and a third liquid outlet pipe, the second sixth through hole located in the lower portion is communicated with a liquid inlet of the second hydraulic rod through a U-shaped pipe and a transverse pipe, and the fifth through hole located in the upper portion is communicated with a liquid outlet of the second hydraulic rod through a second three-way pipe and a.
Detection element including installing the vibration sensor on the fixed block and setting up at the infrared range unit of violently managing the top, infrared range unit including set up violently intraductal inner seal complex second piston, fix slide bar on the second piston, install at the dead lever of violently managing one side and install at the infrared distance meter of violently managing the opposite side, slide bar upper portion stretch out violently manage the upper surface and be connected with the dead lever rather than complex bar through-hole and through the fourth spring, infrared distance meter be used for measuring the distance between infrared distance meter and the slide bar.
The feeding classification assembly comprises a fourth guide rail fixedly mounted in front of the support frame, a feeding unit, a qualified sample collecting unit and an unqualified sample collecting unit, wherein the feeding unit horizontally moves on the fourth guide rail through an electric slider and is identical in structure, the qualified sample collecting unit is positioned on the left side of the feeding unit, the unqualified sample collecting unit is positioned on the right side of the feeding unit, the qualified sample collecting unit and the unqualified sample collecting unit respectively comprise a left conveying pipe and a right conveying pipe, transmission shafts are mounted on the upper portion and the lower portion of each conveying pipe, a first belt wheel and a second belt wheel are mounted on the transmission shafts respectively, the first belt wheel and the second belt wheel are connected through double-sided tooth synchronous belt transmission, a first motor is connected with the transmission shafts through the fourth belt wheel and the third belt wheel in a transmission mode sequentially.
The device is still including setting up the braking subassembly in the telescopic shaft bottom, the braking subassembly including shaft coupling and the magnetic powder brake who from top to bottom connects, the magnetic powder brake fix on the workstation, and magnetic powder brake, shaft coupling and the coaxial setting of pivot.
The contact surface of the clamping block and the inner side of the tapered roller bearing sample is a cambered surface.
Compared with the prior art, the invention has the following advantages:
the invention has ingenious conception, adopts the mode that the two first hydraulic rods, the two second hydraulic rods and the two third hydraulic rods are respectively and correspondingly communicated to carry out floating clamping on the tapered roller bearing to be detected, simultaneously utilizes the gravity center deviation of a tapered roller bearing sample to enable the second piston to move along a transverse pipe in the floating clamping mode, and is combined with an infrared distance meter to detect the deviation distance, thereby evaluating the damage degree of the tapered roller bearing sample.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion of fig. 1 i.
Fig. 3 is an enlarged view of a portion of fig. 1 ii.
Fig. 4 is an enlarged view of a portion of fig. 1 iii.
FIG. 5 is an enlarged view of a portion of FIG. 1 IV.
Fig. 6 is an enlarged view of a portion of fig. 1 v.
Fig. 7 is an enlarged view of a portion of fig. 1 vi.
The notation in the figure is:
1. a working table, 2, a transverse plate, 3, a first through hole, 4, a telescopic shaft, 5, a rotating shaft, 6, a first groove, 7, a disk, 8, a first hydraulic rod, 9, a second through hole, 10, a first guide rail, 11, a first slide block, 12, a connecting piece, 13, a clamping block, 14, a communication hole, 15, a cover body, 16, a first liquid inlet pipe, 17, a first liquid outlet pipe, 18, a first spring, 19, a movable plate, 20, a second guide rail, 21, a second slide block, 22, a second hydraulic rod, 23, a vibration sensor, 24, a second spring, 25, a second liquid inlet pipe, 26, a second liquid outlet pipe, 27, a support rod, 28, a third guide rail, 29, a third slide block, 30, a third hydraulic rod, 31, a third spring, 32, a third liquid inlet pipe, 33, a third liquid outlet pipe, 34, a fixed block, 35, a telescopic rod, 36, a first piston, 37, a fourth through hole, 38, a fifth through hole, 39. a sixth through hole, 40, a vertical pipe, 41, an electric telescopic rod, 42, a U-shaped pipe, 43, a transverse pipe, 44, a second piston, 45, a strip-shaped through hole, 46, a sliding rod, 47, a fixing rod, 48, a fourth spring, 49, an infrared distance meter, 50, a first three-way pipe, 51, a second three-way pipe, 52, a third three-way pipe, 53, a supporting frame, 54, a fourth guide rail, 55, an electric sliding block, 56, a conveying pipe and 57, eighth through hole, 58, conveying shaft, 59, second groove, 60, second belt wheel, 61, double-sided tooth synchronous belt, 62, first motor, 63, third belt wheel, 64, fourth belt wheel, 65, third groove, 66, second motor, 67, first gear, 68, connecting shaft, 69, second gear, 70, third gear, 71, gear column, 72, coupling, 73, magnetic powder brake, 74, first belt wheel, 75, tapered roller bearing sample.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 1, the invention provides an evaluation device for the damage degree of a motor rolling bearing, which comprises a horizontal workbench 1, wherein a transverse plate 2 is fixedly arranged on the top surface of the workbench 1 through a support rod, a vertical first through hole 3 is formed in the middle of the top surface of the transverse plate 2, a fixing part of a telescopic shaft 4 is arranged in the first through hole 3 in a bearing way, two ends of the fixing part of the telescopic shaft 4 penetrate through the first through hole 3, the lower end of the telescopic shaft 4 is connected with a braking device, the movable end of the telescopic shaft 4 is fixedly connected with a vertical rotating shaft 5, the fixing part and the movable part of the telescopic shaft 4 do not rotate relatively, a cylindrical first groove 6 is formed in the top surface of the rotating shaft 5, a hollow disc 7 coaxial with the top surface of the rotating shaft 5 is fixedly arranged on the top surface of the rotating shaft 5, the disc 7 is communicated with the inside of the first groove 6, a first hydraulic rod 8 with the movable end facing, the left side and the right side of the bottom surface of the disc 7 are respectively provided with a vertical second through hole 9, the outer end of the second through hole 9 is communicated with the inside of the fixing part of the first hydraulic rod 8 through a connecting pipe, the top surface of the disc 7 is fixedly arranged on the first guide rail 10 corresponding to the first hydraulic rod 8, the upper part of the first guide rail 10 is provided with a first sliding block 11 in sliding fit with the first guide rail, the outer side of the first sliding block 11 is fixedly connected between the movable ends of the corresponding first hydraulic rods 8 through an inverted L-shaped connecting piece 12, the top surface of the first sliding block 11 is fixedly provided with a clamping block 13, the left side and the right side of the first groove 6 are respectively provided with a horizontal communicating hole 14, the upper peripheral bearing of the rotating shaft 5 is provided with an annular cover body 15, the cover body 15 is positioned on the outer side of the two communicating holes 14, the left side of the cover body 15 is fixedly connected with one end of a first liquid inlet pipe 16 communicated with, the movable parts of the first hydraulic rods 8 are all sleeved with first springs 18, one ends of the first springs 18 are fixedly connected with the fixed parts of the corresponding first hydraulic rods 8, the other ends of the first springs 18 are fixedly connected with the peripheries of the movable parts of the corresponding first hydraulic rods 8, an annular movable plate 19 is arranged in the middle of the rotating shaft 5 through bearings, the bottom surface of the movable plate 19 is fixedly connected with the top surface of the transverse plate 2 through telescopic rods 35 with the movable ends facing upwards, horizontal second guide rails 20 are symmetrically arranged on the top surface of the transverse plate 2 along the center line of the transverse plate, second sliding blocks 21 in sliding fit with the second guide rails 20 are arranged on the upper parts of the second guide rails 20, the left side and the right side of the top surface of the transverse plate 2 are fixedly provided with second hydraulic rods 22 with the movable ends facing towards the middle part of the transverse plate 2 through brackets, the movable parts of the second hydraulic rods 22 are all sleeved with second springs 24, one ends of the second springs 24 are fixedly connected with the fixed parts of the corresponding, the movable ends of the second hydraulic rods 22 are fixedly connected with the outer sides of the corresponding second sliding blocks 21, the front sides of the fixed parts of the second hydraulic rods 22 are fixedly connected with one ends of second liquid inlet pipes 25 communicated with the inner parts of the second hydraulic rods 22, the rear sides of the fixed parts of the second hydraulic rods 22 are fixedly connected with one ends of second liquid outlet pipes 26 communicated with the inner parts of the second hydraulic rods, the top surfaces of the second sliding blocks 21 are fixedly provided with supporting rods 27, the upper parts of the inner sides of the supporting rods 27 are fixedly provided with vertical third guide rails 28, the inner sides of the third guide rails 28 are provided with third sliding blocks 29 in sliding fit with the third guide rails, the inner sides of the upper parts of the supporting rods 27 are fixedly provided with third hydraulic rods 30 with movable ends facing downwards through brackets, the movable ends of the third hydraulic rods 30 are fixedly connected with the top surfaces of the corresponding third sliding blocks 29, the movable parts of the third hydraulic rods 30 are sleeved with third springs 31, one ends of the third springs 31 are fixedly, the other end of the third spring 31 is fixedly connected with the movable part of the corresponding third hydraulic rod 30, the front side of the fixed part of the third hydraulic rod 30 is fixedly connected with one end of a third liquid inlet pipe 32 communicated with the inside of the third hydraulic rod 30, the rear side of the fixed part of the third hydraulic rod 30 is fixedly connected with one end of a third liquid outlet pipe 33 communicated with the inside of the third hydraulic rod, one side of the third slide block 29 far away from the corresponding third guide rail 28 is fixedly provided with inverted L-shaped fixed blocks 34 which are bilaterally symmetrical along the central line of the transverse plate 2 through a horizontal connecting rod, the cross sections of the vertical parts of the two fixed blocks 34 are arc-shaped fixed blocks 34, the cross sections of the vertical parts of the fixed blocks 34 are both concave surfaces and extend lines towards the central line of the rotating shaft 5, the transverse plate 2 is also provided with a rotating power unit for driving the rotating shaft 5 to rotate, one side of the workbench 1 is provided with a vertical pipe 40 which is hollow inside, the inner, a first piston 36 in sealing contact and matching with the vertical pipe 40 is arranged at the upper part in the vertical pipe 40, a vertical fourth through hole 37 is formed in the middle of the top surface of the first piston 36, a one-way valve which can only convey the upper part downwards is arranged in the fourth through hole 37, a horizontal fifth through hole 38 is formed in the right side of the lower part of the vertical pipe 40, a hydraulic system is fixedly connected to the outer side of the fifth through hole 38 through a connecting pipe, six horizontal sixth through holes 39 are uniformly formed in the middle upper part of the vertical pipe 40 in the vertical direction, one-way valves which can only flow into the vertical pipe 40 from the outside are fixedly arranged in the three sixth through holes 39 on the upper part of the vertical pipe 40, one-way valves which can only flow out from the vertical pipe 40 are fixedly arranged in the three sixth through holes 39 on the lower part of the vertical pipe 40, the first piston 36 can simultaneously seal and shield the three sixth through holes 39, the movable end of an electric telescopic rod 41 is fixedly connected to the bottom bracket of, the outer end of a sixth through hole 39 positioned at the lowest part of a vertical pipe 40 is fixedly connected with the other end of a first liquid inlet pipe 16, the outer end of a fourth sixth through hole 39 positioned at the bottom from bottom to top of the vertical pipe 40 is fixedly connected with the other end of a first liquid inlet and outlet pipe 17, the outer end of a second sixth through hole 39 positioned at the bottom from bottom to top of the vertical pipe is fixedly connected with the horizontal part of a U-shaped pipe 42 through a connecting pipe and communicated with the inner part of the U-shaped pipe 42, two vertical pipe orifices of the U-shaped pipe 42 are simultaneously and fixedly connected with a horizontal pipe 43 and communicated with the horizontal pipe, the middle part of the horizontal pipe 43 is provided with a second piston 44 in sealing contact fit with the horizontal pipe, the top surface of the horizontal pipe 43 is provided with a strip-shaped through hole 45 corresponding to the second piston 44, a vertical slide rod 46 is fixedly installed at the middle part of the top surface of the, an infrared distance measuring instrument 49 is fixedly arranged on the left side of the top surface of the horizontal pipe 43, the outer end of a third sixth through hole 39 positioned from bottom to top of the vertical pipe 40 is fixedly connected with a horizontal pipe orifice of a first three-way pipe 50, the vertical pipe orifices of the first three-way pipe 50 are respectively fixedly connected with the other end of a third liquid inlet pipe 32, the two ends of the horizontal pipe 43 are respectively fixedly connected with the other end of a second liquid inlet pipe 25, the outer end of a fifth sixth through hole 39 positioned from bottom to top of the vertical pipe 40 is fixedly connected with a horizontal pipe orifice of a second three-way pipe 51, the vertical pipe orifices of the second three-way pipe 51 are respectively fixedly connected with the other end of a second liquid outlet pipe 26, the outer end of a sixth through hole 39 positioned at the uppermost part of the vertical pipe 40 is fixedly connected with a horizontal pipe orifice of a third three-way pipe 52, the vertical pipe orifices of the third three-way pipe 52 are respectively fixedly connected with the other end, the braking device, the rotating power unit, the vibration sensor 23, the electric telescopic rod 41 and the hydraulic system are respectively connected with a power supply. The device is suitable for evaluating and detecting the damage degree of the tapered roller bearing, before the device is used, a worker sets the infrared distance meter 49, and in an initial state, the first piston 36 seals and shields the three sixth through holes 39 at the lower part of the vertical pipe 40; when in use, the first hydraulic rod 8, the second hydraulic rod 22 and the third hydraulic rod 30 are all in a contraction state, the distance between the two clamping blocks 13 is minimum, a worker sleeves the tapered roller bearing sample 75 on the periphery of the clamping blocks 13, then the electric telescopic rod 41 extends, the first piston 36 seals and shields the second through hole 39, the third through hole 39 and the fourth through hole 39 from bottom to top of the vertical pipe 40, the hydraulic system feeds hydraulic oil into the vertical pipe 40, so that the sixth through hole 39 at the lowest part of the vertical pipe 40 feeds hydraulic oil to the first liquid inlet pipe 16, the hydraulic oil sequentially passes through the cover body 15, the first groove 6 and the disc 7 from the first liquid inlet pipe 16, then enters the two corresponding first hydraulic rods 14 from the corresponding second through holes 9, so that the first hydraulic rods 8 are extended, the clamping blocks 13 move towards the side far away from the middle part of the disc 7 along with the corresponding first slide blocks 11, and the two clamping blocks 13 clamp the inner side of the tapered roller bearing sample 75; then the electric telescopic rod 41 continues to extend, so that the first piston 36 seals and shields the third through hole 39, the fourth through hole 39 and the fifth through hole 39 from bottom to top of the vertical pipe 40, hydraulic oil is fed into the second through hole 39 from bottom to top of the vertical pipe 40, the two valves are opened, and therefore the hydraulic oil respectively fills the two second liquid inlet pipes 25 through the U-shaped pipe 42 and the transverse pipe 43, and the second liquid inlet pipes 25 fill the hydraulic oil to enable the second hydraulic rods 22 to extend; the second hydraulic rod 22 extends to enable the corresponding second slide block 21 to move towards the middle side of the transverse plate 2 along the corresponding second guide rail 24, so that the corresponding third slide block 29 and the corresponding fixed block 34 move towards the middle side of the transverse plate 3, and similarly, the vertical pipe 40 fills hydraulic oil into the two third liquid inlet pipes 32, so that the corresponding two third hydraulic rods 30 extend, the third hydraulic rods 30 extend to enable the corresponding third slide block 29 to move downwards along the corresponding third guide rail 28, so that the corresponding fixed block 34 moves downwards, so that the fixed blocks 34 are close to the tapered roller bearing sample 75 and fixedly clamp the tapered roller bearing sample 75, and the first spring 18, the second spring 25 and the third spring 29 are all in an extending state; after the tapered roller bearing sample 75 is fixed and held, the rotating power unit drives the rotating shaft 5 to rotate, so that the inner ring of the tapered roller bearing sample 75 rotates along with the rotating shaft, meanwhile, the fixing blocks 34 respectively provide downward force and force pointing to the center of the tapered roller bearing sample 75, at the moment, the two first liquid inlet pipes 16, the two second liquid inlet pipes 25 and the two third liquid inlet pipes 32 are all in a communicated state, the two clamping blocks 13 and the two fixing blocks 34 simultaneously carry out floating clamping on the tapered roller bearing sample 75, simultaneously carry out evaluation detection on the tapered roller bearing sample 75, and are both in a closed state, when the gravity center of the tapered roller bearing sample 75 deviates, because the two valves are closed, the second piston 45 is in sealing contact with the transverse pipe 43 and is matched, the second hydraulic rod 22 and the fixing blocks 34 move relative to each other in the process of the tapered roller bearing sample 75 rotating and deviating, therefore, the second piston 45 horizontally moves along the transverse pipe 43 in the process that the tapered roller bearing sample 75 rotates and deviates, meanwhile, the sliding rod 46 horizontally moves along the strip-shaped through hole 47, the infrared distance meter 49 monitors the moving distance of the sliding rod 46, when the moving distance of the sliding rod 46 is larger than a set value, the infrared distance meter 49 feeds back information to evaluate that the tapered roller bearing sample is an unqualified sample, meanwhile, the deviation of the center of the tapered roller bearing sample 75 from the rotating range is increased, so that the vibration is increased, the vibration range of the tapered roller bearing sample 75 is amplified, and the vibration sensor 23 can more accurately diagnose the vibration condition of the tapered roller bearing sample 75 and feed back the information; when the tapered roller bearing sample 75 is worn, the rotating power unit drives the rotating shaft 5 to enable the tapered roller bearing sample 75 to obviously vibrate in the process of rotating the inner ring of the tapered roller bearing sample 75, and the vibration sensor 23 can more accurately evaluate and detect the damage degree of the tapered roller bearing sample 75 and feed back information; after the evaluation and detection are finished, under the action of the braking device, the tapered roller bearing 75 stops rotating rapidly, the electric telescopic rod 41 contracts, so that the two sixth through holes 39 on the upper portion of the vertical pipe 40 are communicated with the interior of the vertical pipe 40, meanwhile, the hydraulic system pumps away the hydraulic oil in the vertical pipe 40, so that the third liquid outlet pipe 33 and the second liquid outlet pipe 26 discharge liquid simultaneously, the second hydraulic rod 22 recovers the initial state under the action of the second spring 25 and the third hydraulic rod 30 under the action of the third spring 29, the fixed block 34 recovers the original state simultaneously, then the electric telescopic rod 41 continues to contract, so that the first liquid outlet pipe 17 also discharges liquid, the first hydraulic rod 8 recovers the original state, and a worker takes down the tapered roller bearing sample 75.
Specifically, as shown in fig. 6, an inverted U-shaped supporting frame 53 is fixedly installed on the top surface of the worktable 1 according to the embodiment, a fourth guide rail 54 is fixedly installed on the front surface of the horizontal portion of the supporting frame 53, three electric sliders 55 in sliding fit with the fourth guide rail 54 are arranged on the front portion of the fourth guide rail 54, an internal conveying pipe 56 is fixedly installed on the front surface of each electric slider 55, horizontal eighth through holes 57 are respectively formed on the left and right sides in the conveying pipe 56, vertical second grooves 59 are respectively formed on the left and right sides of the lower end of the conveying pipe 56, a front-back conveying shaft 58 is bearing-installed in the front-back eighth through holes 57 in the second grooves 59, a first belt pulley 74 is fixedly sleeved on the outer periphery of each conveying shaft 58 in each eighth through hole 57, a second belt pulley 60 is fixedly sleeved on the outer periphery of each conveying shaft 58 in each second groove 59, two first belt pulleys 74 and two second belt pulleys 60 on the same vertical line are connected through a, the front ends of the transmission shafts 58 located in the eighth through holes 57 penetrate through the corresponding transmission pipes 56 and are connected with the transmission pipes 56 through bearings, the first motors 62 with two output shafts facing forwards are fixedly installed in the front of the transmission pipes 56, the third belt wheels 63 are fixedly sleeved on the output shafts of the first motors 62, the fourth belt wheels 64 are fixedly sleeved on the front ends of the transmission shafts 58 located in the eighth through holes 57, the first belt wheels 63 are connected with the fourth belt wheels 64 on the corresponding sides through belts 65, and the first motors 62 are connected with a power supply. The middle conveying pipe 56 is a sample feeding pipe, the left conveying pipe 56 is a qualified sample collecting pipe, the right conveying pipe 56 is a unqualified sample collecting pipe, the minimum distance between the two double-sided toothed synchronous belts 61 of the same conveying pipe 56 is equal to the outer diameter of a tapered roller bearing sample, a plurality of tapered roller bearing samples are stacked and placed in the middle conveying pipe 56 from top to bottom, in an initial installation state, the first hydraulic rod 7, the second hydraulic rod 22 and the third hydraulic rod 30 are all in a contraction state, in use, the telescopic shaft 4 extends to enable the rotating shaft 5, the disc 7 and the two clamping blocks 13 to move upwards along with the expansion shaft 5, the movable plate 19 is driven by the rotating shaft 5 to move upwards along with the movable shaft, the telescopic rod 35 extends, and simultaneously, under the rotation of the first motor 62, the double-sided toothed synchronous belts 61 on the left side of the middle conveying pipe 56 and the double-sided toothed synchronous belts 61, the double-sided toothed synchronous belts 61 on the right side of the right conveying pipe 56 rotate clockwise, the double-sided toothed synchronous belts 61 on the right side of the middle conveying pipe 56, the double-sided toothed synchronous belts 61 on the left side of the left conveying pipe 56, and the double-sided toothed synchronous belts 61 on the left side of the right conveying pipe 56 rotate counterclockwise, when sample introduction is needed, the electric sliding block 55 in the middle of the fourth guide rail 54 moves right above the rotating shaft 5 along the fourth guide rail 54, so that the corresponding conveying pipe 56 is coaxial with the rotating shaft 5, and simultaneously, the two first motors 62 of the middle conveying pipe 56 work simultaneously, so that the corresponding two double-sided toothed synchronous belts 62 move, so that the conical roller bearing sample on the lowest part of the conveying pipe 56 moves downwards along the two double-sided toothed synchronous belts 62, and the conical roller bearing sample is sleeved on the peripheries of the two clamping blocks 13, and then the telescopic, make pivot 5 reply initial condition, evaluate and detect, after the evaluation detects, when tapered roller bearing sample is unqualified, three electronic slider 55 all moves to the left side along fourth guide rail 54, make the electronic slider 55 on rightmost side move to pivot 5 directly over, thereby make the conveying pipe 56 on rightmost side coaxial with pivot 5, two first motors 62 that conveying pipe 56 on rightmost side corresponds start simultaneously, two-sided tooth hold-in ranges 61 that correspond will drive the sample that detects completely and follow conveying pipe 56 rebound, get into in the most conveying pipe 56 that goes out, the same reason, when the sample that detects is qualified sample, the sample that detects finishes gets into in the leftmost conveying pipe 56, adopt full automatic operation to detect the conveying of sample, and detect the sample and carry out classification according to the testing result, time saving and labor saving, it is high-efficient convenient.
Specifically, as shown in fig. 3, the rotary power unit described in this embodiment includes a third groove 65, a second motor 66, a first gear 67, a connecting shaft 68, a second gear 69, a third gear 70, and a gear column 71, wherein a vertical third groove 65 is formed on one side of the top surface of the transverse plate 2, the second motor 66 with an upward output shaft is fixedly installed in the third groove 65, the first gear 67 is fixedly sleeved on the output shaft of the second motor 66, the vertical connecting shaft 68 is installed on a top surface bearing of the transverse plate 2, the second gear 69 is fixedly sleeved on the lower portion of the connecting shaft 68, the first gear 67 is engaged with the second gear 69, the third gear 70 is fixedly sleeved on the upper portion of the connecting shaft 68, the annular gear column 71 is fixedly sleeved on the lower portion of the rotating shaft 5, the third gear 70 is engaged with the gear column 71 all the time, and the second motor 66 is connected to the. In use, the third motor 66 is operated, and since the first gear 67 is engaged with the second gear 69, the third motor 66 drives the connecting shaft 68 to rotate, and since the third gear 70 is always engaged with the gear column 71, the rotation of the connecting shaft 68 drives the rotating shaft 5 to rotate therewith.
Further, as shown in fig. 1, the clamping blocks 13 of this embodiment are both arc-shaped on the side away from the middle of the disk 7. When the device is used, the periphery of the arc-shaped clamping block 13 is contacted and matched with the inner side of a tapered roller bearing sample more closely, and the clamping effect of the arc-shaped clamping block 13 on the detection sample is better.
Further, as shown in fig. 2, the braking device according to the embodiment includes a coupling 72 fixedly connected to a lower end of the fixing portion of the telescopic shaft 4, and a magnetic powder brake 73 fixedly connected to a lower portion of the coupling 72. When the rotating power unit stops driving the rotating shaft 5 to rotate, the magnetic powder brake 73 enables the rotating shaft 5 to be rapidly braked through the coupler 72, so that the rotating power unit can be effectively protected, and meanwhile, the time for evaluating and detecting can be effectively shortened.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an evaluation device of motor antifriction bearing damage degree, includes workstation (1), installs diaphragm (2) on workstation (1), its characterized in that, the device still includes:
the clamping component is rotated: the inner side clamping and rotating device is used for realizing the clamping and rotating of the tapered roller bearing sample (75), the rotating clamping assembly comprises a telescopic shaft (4), a rotating shaft (5) concentrically fixed at the top of the telescopic shaft (4), a rotating power unit and a pair of inner side clamping units symmetrically arranged along the axis of the rotating shaft (5), the rotating shaft (5) consists of an integrally formed main body and a hollow upper boss, the main body is in transmission connection with the rotating power unit, the top of the upper boss is connected with a hollow disc (7), the outer side of the upper boss is provided with a hollow circular ring-shaped cover body (15), each inner side clamping unit comprises a first hydraulic rod (8) with a first spring (18) at a movable part, an L-shaped connecting piece (12), a first sliding block (11) and a clamping block (13) which are sequentially connected, the top surface of the disc (7) is provided with a first guide rail (10) for realizing the radial sliding of the first sliding block (11), the first hydraulic rod (8) is fixedly arranged on the bottom surface of the disc (7), and the pair of clamping blocks (13) which are oppositely arranged realize the inner side clamping and synchronous rotation of the tapered roller bearing sample (75) through the telescopic action of the first hydraulic rod (8);
the floating clamping component: the device is used for realizing the floating clamping of the outer side and the top of a tapered roller bearing sample (75), the floating clamping components are oppositely provided with two groups by taking the axis of a rotating shaft (5) as a symmetrical shaft, each group of floating clamping components comprises a horizontal moving unit, a vertical moving unit and a reversed L-shaped fixed block (34) which are connected in sequence, the horizontal moving unit comprises a second hydraulic rod (22) of which the moving part is provided with a second spring (24), a second sliding block (21) which is horizontally arranged on a second guide rail (20) on the upper surface of a transverse plate (2) and a supporting rod (27) which is longitudinally arranged, the vertical moving unit comprises a third hydraulic rod (30) which is sequentially connected and is fixed on the upper part of the supporting rod (27), a third sliding block (29) which is vertically arranged on a third guide rail (28) on the supporting rod (27) and a horizontal connecting rod which is used for connecting the third sliding block (29) and the fixed block (34), a pair of inverted L-shaped fixing blocks (34) which are oppositely arranged realize floating clamping on the outer side and the top of a tapered roller bearing sample (75) under the action of a second hydraulic rod (22) and a third hydraulic rod (30);
a hydraulic control assembly: the clamping device is arranged on the transverse plate (3), is connected with an external hydraulic system and is used for controlling the clamping action of the floating clamping assembly and the rotating clamping assembly;
a detection component: the device is used for detecting the vibration condition and the rotation deviation condition of the tapered roller bearing sample (75) during the rotation process;
feeding and classifying assembly: the device is arranged in front of a cross beam of an inverted U-shaped support frame (53) fixed on a workbench (1) and is used for realizing the feeding and classification processing of the tapered roller bearing samples (75).
2. The device for evaluating the damage degree of the rolling bearing of the motor as claimed in claim 1, wherein the rotating power unit comprises a second motor (66), a first gear (67), a second gear (69), a connecting shaft (68) and a third gear (70) which are sequentially driven, the third gear (70) is meshed with a gear column (71) fixed on the outer side of the main body of the rotating shaft (5) for transmission, and the second motor (66) is installed in a vertical third groove (65) formed in the top surface of the transverse plate (2).
3. The device for evaluating the damage degree of the rolling bearing of the motor according to claim 1, wherein the hydraulic control assembly comprises a hollow vertical pipe (40), an electric telescopic rod (41) arranged at the bottom of an inner cavity of the vertical pipe (40), and a first piston (36) in transmission connection with the electric telescopic rod (41) and in sealing fit with the inner wall of the vertical pipe (40), the inner cavity of the vertical pipe (2) is divided into an upper cavity and a lower cavity by the first piston (36), a fourth through hole (37) communicated with the upper cavity and the lower cavity in the vertical pipe (40) is arranged in the middle of the first piston (36), a one-way valve communicated from the upper cavity to the lower cavity is arranged in the fourth through hole (37), the lower cavity is connected with an external hydraulic system through a fifth through hole (38) formed in the side surface of the lower part of the vertical pipe (40), and 6 sixth through holes (39) are sequentially formed in the pipe wall of the vertical pipe (40) from bottom to top, the first through hole, the second through hole and the third through hole which are positioned at the lower part are provided with check valves which can only flow out from the vertical pipe (40) outwards, the fourth through hole, the fifth through hole and the sixth through hole which are positioned at the upper part are provided with check valves which can only flow in from the outside to the inside of the vertical pipe (40), and the first piston (36) sequentially blocks the three sixth through holes (39) which are sequentially arranged in the vertical pipe (40) through the up-and-down movement in the vertical pipe.
4. The device for evaluating the damage degree of the rolling bearing of the motor according to claim 3, wherein a first sixth through hole (39) at the lower part is communicated with the annular inner cavity of the cover body (15) through a first liquid inlet pipe (16), the annular inner cavity of the annular cover body (15) is communicated with the liquid inlet of the first hydraulic rod (8) through a first groove (6) inside the upper boss and the inner cavity of the disc (7), a fourth sixth through hole (39) at the upper part is communicated with the annular inner cavity of the cover body (15) through the first liquid outlet pipe (16), a third sixth through hole (39) at the lower part is communicated with the liquid inlet of the third hydraulic rod (30) through a first three-way pipe (50) and a third liquid inlet pipe (32), and the sixth through hole (39) at the upper part is communicated with the liquid outlet of the third hydraulic rod (30) through a third three-way pipe (52) and a third liquid outlet pipe (33), the second sixth through hole (39) positioned at the lower part is communicated with a liquid inlet of the second hydraulic rod (22) through a U-shaped pipe (42), a transverse pipe (43) and a second liquid inlet pipe (25) in sequence, and the fifth through hole (39) positioned at the upper part is communicated with a liquid outlet of the second hydraulic rod (22) through a second three-way pipe (51) and a second liquid outlet pipe (26) in sequence.
5. The device for evaluating the degree of damage of a rolling bearing of an electric machine according to claim 4, the detection assembly comprises a vibration sensor (23) arranged on a fixed block (34) and an infrared distance measuring unit arranged at the top of a transverse pipe (43), the infrared distance measuring unit comprises a second piston (44) which is arranged in the transverse pipe (43) and is in sealing fit with the transverse pipe, a sliding rod (46) fixed on the second piston (44), a fixed rod (47) arranged on one side of the transverse pipe (43) and an infrared distance meter (49) arranged on the other side of the transverse pipe (43), the upper part of the sliding rod (46) extends out of the upper surface of the transverse pipe (43) and is connected with a strip-shaped through hole (45) matched with the upper surface of the transverse pipe and is connected with a fixed rod (47) through a fourth spring (48), the infrared distance measuring instrument (49) is used for measuring the distance between the infrared distance measuring instrument (49) and the sliding rod (46).
6. The device for evaluating the damage degree of the rolling bearing of the motor according to claim 1, wherein the feeding classification assembly comprises a fourth guide rail (54) fixedly installed in front of the support frame (53), a feeding unit horizontally moving on the fourth guide rail (54) through an electric slide block (55) and having the same structure, a qualified sample collection unit positioned on the left side of the feeding unit, and a rejected sample collection unit positioned on the right side of the feeding unit, the qualified sample collection unit, and the rejected sample collection unit each comprise a left conveying pipe (56) and a right conveying pipe (56), a transmission shaft (58) is installed on the upper portion and the lower portion of each conveying pipe (56), a first pulley (74) and a second pulley (60) are installed on the transmission shaft (58), the first pulley (74) and the second pulley (60) are in transmission connection through a double-sided toothed synchronous belt (61), the first motor (62) is in transmission connection with the transmission shaft (58) through the fourth belt wheel (64) and the third belt wheel (63) in sequence, and the distance between the left transmission pipe and the right transmission pipe (56) is the same as the outer diameter of the tapered roller bearing sample (75).
7. The device for evaluating the damage degree of the rolling bearing of the motor according to claim 1, further comprising a brake assembly arranged at the bottom of the telescopic shaft (4), wherein the brake assembly comprises a coupler (72) and a magnetic powder brake (73) which are connected from top to bottom, the magnetic powder brake (73) is fixed on the workbench (1), and the magnetic powder brake (73), the coupler (72) and the rotating shaft (5) are coaxially arranged.
8. The device for evaluating the damage degree of the rolling bearing of the motor as claimed in claim 1, wherein the contact surface of the clamping block (13) and the inner side of the tapered roller bearing sample (75) is a cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089153.3A CN111256995B (en) | 2020-02-12 | 2020-02-12 | Evaluation device for damage degree of motor rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089153.3A CN111256995B (en) | 2020-02-12 | 2020-02-12 | Evaluation device for damage degree of motor rolling bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111256995A CN111256995A (en) | 2020-06-09 |
| CN111256995B true CN111256995B (en) | 2021-03-26 |
Family
ID=70945585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010089153.3A Active CN111256995B (en) | 2020-02-12 | 2020-02-12 | Evaluation device for damage degree of motor rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111256995B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284734A (en) * | 2020-09-25 | 2021-01-29 | 蚌埠弘皓机电有限公司 | Bearing rotation detection equipment |
| CN115979616B (en) * | 2023-03-23 | 2023-05-23 | 唐山曹妃甸工业区长白机电设备检修有限公司 | Roller set detection device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201364135Y (en) * | 2009-03-02 | 2009-12-16 | 湖北新火炬科技股份有限公司 | Detection device for negative clearance of non-driving wheel hub bearing unit |
| US10259572B2 (en) * | 2015-04-16 | 2019-04-16 | Bell Helicopter Textron Inc. | Torsional anomalies detection system |
| CN105223020B (en) * | 2015-09-28 | 2018-11-09 | 北京泰诚信测控技术股份有限公司 | A kind of cone bearing detection device |
| CN205002961U (en) * | 2015-09-28 | 2016-01-27 | 北京泰诚信测控技术股份有限公司 | Detection device is held to axis of cone |
| CN107543723A (en) * | 2017-09-05 | 2018-01-05 | 成都元始信息科技有限公司 | A kind of bearing testing device of service life length |
| CN108680356B (en) * | 2018-05-07 | 2020-03-31 | 山东理工大学 | Fit clearance continuous adjustable thrust rolling bearing test bed |
| JP7063144B2 (en) * | 2018-06-28 | 2022-05-09 | 日本精工株式会社 | 3-axis fretting test equipment for bearings |
| CN208350368U (en) * | 2018-07-12 | 2019-01-08 | 中国计量大学 | A kind of static pressure air-bearing main shaft device for detecting performance |
| CN209027793U (en) * | 2018-10-13 | 2019-06-25 | 深圳市欣嘉盛五金有限公司 | Performance testing device is used in a kind of manufacture of precision bearing |
| CN208937326U (en) * | 2018-10-26 | 2019-06-04 | 瓦房店轴承产品有限公司 | A kind of Bearing testing defectoscope |
| CN209689922U (en) * | 2019-03-01 | 2019-11-26 | 钱潮轴承有限公司 | A kind of tapered roller bearing starting moment of friction detection device |
| CN110617962B (en) * | 2019-11-13 | 2021-07-30 | 浙江省机电产品质量检测所有限公司 | Radial test mechanism of bearing |
-
2020
- 2020-02-12 CN CN202010089153.3A patent/CN111256995B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111256995A (en) | 2020-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111256995B (en) | Evaluation device for damage degree of motor rolling bearing | |
| CN111307639B (en) | Floating oil seal running-in abrasion leakage performance testing machine | |
| CN111256994B (en) | Rolling bearing fault diagnosis simulation experiment device | |
| CN209166999U (en) | A kind of pressure pipeline pressure-detecting device | |
| CN115184006B (en) | Valve fatigue test device | |
| CN113790847B (en) | Mining machinery part dynamic balance detecting instrument | |
| CN201653983U (en) | Multi-channel rotary probe device used for nondestructive testing of tubes/bars | |
| CN201926593U (en) | Rotary bending fatigue test machine for aviation conduit component | |
| CN104389777B (en) | Lubricating oil pump test device | |
| CN210221495U (en) | Bearing life testing device | |
| CN105571486B (en) | The spline detection device and method of splined shaft | |
| CN205538211U (en) | Forerunner automobile machinery gearbox transmission error test bench | |
| CN204980088U (en) | Automatic multistation transfer device that circulates for detecting system | |
| CN216433069U (en) | Floating oil seal testing device | |
| CN106441844A (en) | High-speed rice transplanting machine chassis assembly running-in test stand | |
| CN216433516U (en) | Floating oil seal testing device | |
| CN108036890B (en) | A kind of Bolt detection probe centralising device | |
| CN110118654A (en) | A kind of auto pump shaft connecting bearing testing machine | |
| CN108709805A (en) | A kind of Material Testing Machine | |
| CN114878163A (en) | High-precision dynamic pressure thrust foil bearing dynamic and static synchronous loading testing device | |
| CN210014915U (en) | Test device for detecting service life of bearing | |
| CN209880173U (en) | Multi-channel small-pipe-diameter digital real-time imaging detection device | |
| CN208109412U (en) | Automotive driven disc assembly perseverance torque fatigue damage tolerant high-frequency detection equipment | |
| CN113984374A (en) | Floating oil seal testing device | |
| CN101982755B (en) | Rotary bending fatigue tester of aviation conduit assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |