CN201138268Y - Dynamic wheel balancer axes set with hard support structure of outer cantilever - Google Patents
Dynamic wheel balancer axes set with hard support structure of outer cantilever Download PDFInfo
- Publication number
- CN201138268Y CN201138268Y CNU2007201178399U CN200720117839U CN201138268Y CN 201138268 Y CN201138268 Y CN 201138268Y CN U2007201178399 U CNU2007201178399 U CN U2007201178399U CN 200720117839 U CN200720117839 U CN 200720117839U CN 201138268 Y CN201138268 Y CN 201138268Y
- Authority
- CN
- China
- Prior art keywords
- support plate
- main shaft
- plate assembly
- sensor
- armature
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Of Balance (AREA)
Abstract
A dynamic wheel balancer shafting of hard bearing structure of linear cantilever relates to the dynamic wheel balancer shafting. The utility model solves the problems that the processing of an existing dynamic wheel balancer is complicated; a sensor is difficult to be installed and debugged and bearing position can not be ensured when then sensor is installed, which affects measuring accuracy. The permanent seat of armature (9) is installed on a belt roller (13). An armature (8) is fixed on the permanent seat of armature (9). A velocity-measuring system assembly (62) is fixed on the right end of a main shaft (29). A support plate body (70) is provided with an anomalous support plate opening (26). A piezoelectric transducer (22) is arranged between a first sensor tabletting (21) and a second sensor tabletting (71) and the piezoelectric transducer (22), the first sensor tabletting (21) and the second sensor tabletting (71) are pressed against a lug boss (70-1) though a third bolt (23) arranged on one end of a screw hole (36). A fourth bolt (25) is screwed on the other end of the screw hole (36). With the dynamic wheel balancer shafting of hard bearing structure of linear cantilever used, a better vibration signal can be received by the main shaft, so the measuring accuracy of the dynamic wheel balancer is greatly improved.
Description
Technical field
The utility model relates to a kind of dynamic wheel balancing arbor.
Background technology
Current dynamic wheelo balancer all is the dynamometry type with regard to its principle of work, go out the centrifugal force that is directly proportional with amount of unbalance by sensor, promptly under the state of wheel rotation, the vibration force of testing the supporting vibration that its imbalance causes or acting on supporting is measured imbalance, and the supporting-point that piezoelectric transducer is installed to balance arbor system just can detect the vibration force that the wheel unbalancing value causes.Domestic dynamic wheelo balancer all is that two supporting-points that stationary shaft is are arranged on the casing of equilibrator at present, be to use screw rod and slip-knot bolt that axle system is fixed on two supporting-points of casing, piezoelectric sensor is provided with center pit, it is through on screw rod and the slip-knot bolt be pressed on the supporting-point of casing by nut.Welding technology to the equilibrator casing will have certain requirement like this, the flatness that requires the panel beating surface of fixation of sensor on the casing with and better with the depth of parallelism or the verticality of equilibrator main shaft, and be difficult to the requirement that reaches such by the technology of welding, so just caused processed complex, the installation and debugging of sensor are also very inconvenient.The position of supporting-point is difficult to guarantee because the location parameter of supporting-point will participate in computing, certain influence to be arranged to last measuring accuracy when mounted simultaneously.
The utility model content
The utility model is in order to solve the processed complex that existing dynamic wheelo balancer exists, the installation and debugging difficulty of sensor, the very difficult assurance in the position of supporting-point when mounted consequently influence problems such as measuring accuracy, and then the dynamic wheel balancing arbor system of the hard supporting structure of a kind of outer cantilever is provided.
The technical solution of the utility model is: the dynamic wheel balancing arbor system of the hard supporting structure of a kind of outer cantilever, and it comprises axle sleeve 1, main shaft 29, electromagnetic clutch positioning seat 3, armature holder 9, belt pulley 13, clutch shaft bearing 60, bearing 14, disk spring 15, velocity-measuring system assembly 62; It also comprises the first support plate assembly 2, the second support plate assembly 19, electromagnetic clutch 61, described electromagnetic clutch 61 is by magnet yoke of electromagnetic clutch dish 6, friction disc 7, armature 8 is formed, described axle sleeve 1 is installed on the main shaft 29, axle sleeve 1 passes the first support plate assembly 2 and affixed with the first support plate assembly 2, the described second support plate assembly 19 is installed on the main shaft 29 by clutch shaft bearing 60 and is affixed with the right side of axle sleeve 1, electromagnetic clutch positioning seat 3 is installed on the main shaft 29 of the second support plate assembly, 19 right-hand members from left to right successively, friction disc 7, belt pulley 13, the described magnet yoke of electromagnetic clutch dish 6 and the second support plate assembly 19 are affixed, friction disc 7 is installed on the main shaft 29, armature holder 9 is installed on the belt pulley 13, second step 33 sliding fits that are provided with on the center pit of armature holder 9 and the belt pulley 13, described armature 8 is fixed on the armature holder 9, leave certain interval between friction disc 7 and the armature 8, on the first step 34 of belt pulley 13 disk spring 15 is installed, between described belt pulley 13 and the main shaft 29 bearing 14 is housed, velocity-measuring system assembly 62 is fixed on the right side of main shaft 29; The described first support plate assembly 2 and the second support plate assembly 19 are by support plate plate body 70, first sensor compressing tablet 21, the second sensor compressing tablet 71, piezoelectric sensor 22, the 3rd bolt 23, locking spring 24, the 4th bolt 25 is formed, described support plate plate body 70 is provided with special-shaped support plate perforate 26, have boss 70-1 on abnormity support plate perforate 26 inwalls, correspondence position with boss 70-1 on support plate plate body 70 has screw 36, described piezoelectric sensor 22 is between the first sensor compressing tablet 21 and the second sensor compressing tablet 71, and the three is pressed on the boss 70-1 by the 3rd bolt 23 that is contained in screw 36 1 ends, the 4th bolt 25 screws in the other end of screw 36, the 3rd bolt 23, locking spring 24 is housed between the 4th bolt 25.
The utlity model has following advantage: the utility model can make main shaft obtain better vibration signal, has improved the measuring accuracy of dynamic wheelo balancer greatly.The utility model is by two support plates of welding on the axle sleeve of dynamic wheelo balancer, two supporting-points of equilibrator are arranged on these two support plates, on support plate, have the hole of given shape, provide the position of sensor installation on the one hand, the vibration that helps amplifying the equilibrator main shaft on the other hand.Simultaneously on the main shaft of equilibrator, electromagnetic clutch is installed, during acceleration by the driven by motor main axis rotation, when dynamic balancing machine slides sampling, motor and main shaft are separated, two benefits can be arranged like this: the one, the resistance of taxing of main shaft is little, the angular velocity decay is slow, and the 2nd, motor separates with main shaft, avoids owing to the rotation of motor spindle vibration being produced noise.In the utility model,, can make processing easier, the also easier assurance of the positional precision of supporting-point because main shaft and its two supporting-points are arranged on one on the whole.In that to install efficient higher, the position is more accurate, and measuring accuracy is higher.Because the use of electromagnetic clutch makes main shaft resistance when sliding sampling little, the angular velocity decay is slower, and vibration signal is better.The hole of processing given shape on two support plates, leave bigger breach in one direction, like this when spindle vibration, because support plate is little in the rigidity of breach direction, the vibration of main shaft mainly concentrates on this direction, piezoelectric sensor is pressed on this breach the supporting-point that the position of sensor installation just as the balance arbor is with bolt.By the spindle vibration amount that sensor acquisition causes to the imbalance by wheel, just can calculate the unbalancing value of wheel.Between the main shaft of equilibrator and motor, electromagnetic clutch is set, controls the clutch state of electromagnetic clutch as required, can obtain the better vibration signal of main shaft, improve the measuring accuracy of dynamic wheelo balancer by single-chip microcomputer.
Description of drawings
Fig. 1 is a front view of the present utility model, and Fig. 2 is the A-A cut-open view of Fig. 1, and Fig. 3 is the B portion enlarged drawing of Fig. 1, and Fig. 4 is the right view (velocity-measuring system assembly part) of Fig. 1, and Fig. 5 is the mechanical model figure of dynamic wheelo balancer.
Embodiment
Embodiment one: shown in Fig. 1～4, the dynamic wheel balancing arbor system of the hard supporting structure of outer cantilever of present embodiment is by axle sleeve 1, main shaft 29, electromagnetic clutch positioning seat 3, armature holder 9, belt pulley 13, clutch shaft bearing 60, bearing 14, disk spring 15, velocity-measuring system assembly 62, the first support plate assembly 2, the second support plate assembly 19, electromagnetic clutch 61 is formed, described electromagnetic clutch 61 is by magnet yoke of electromagnetic clutch dish 6, friction disc 7, armature 8 is formed, described axle sleeve 1 is installed on the main shaft 29, axle sleeve 1 passes the first support plate assembly 2 and affixed with the first support plate assembly 2, the described second support plate assembly 19 is installed on the main shaft 29 by clutch shaft bearing 60 and is affixed with the right side of axle sleeve 1, electromagnetic clutch positioning seat 3 is installed on the main shaft 29 of the second support plate assembly, 19 right-hand members from left to right successively, friction disc 7, belt pulley 13, electromagnetic clutch positioning seat 3 is pressed in first unthreaded hole 27 on the second support plate assembly 19 by magnet yoke of electromagnetic clutch dish 6, be provided with sleeve 5 between the described magnet yoke of electromagnetic clutch dish 6 and the second support plate assembly 19, the described magnet yoke of electromagnetic clutch dish 6 and the second support plate assembly 19 are by passing sleeve 5, first bolt 4 of the threaded hole 28 on the second support plate assembly 19 is affixed, armature holder 9 is installed on the belt pulley 13, second step 33 sliding fits that are provided with on the center pit of armature holder 9 and the belt pulley 13, described armature 8 is fixed on the armature holder 9 by socket head cap screw 10, the part that socket head cap screw 10 grows armature holder 9 is passed the unthreaded hole 32 on the belt pulley 13, leave certain interval between friction disc 7 and the armature 8, on the first step 34 of belt pulley 13 disk spring 15 is installed, between described belt pulley 13 and the main shaft 29 bearing 14 is housed, velocity-measuring system assembly 62 is fixed on the right side of main shaft 29 by second bolt 65; The described first support plate assembly 2 and the second support plate assembly 19 are by support plate plate body 70, first sensor compressing tablet 21, the second sensor compressing tablet 71, piezoelectric sensor 22, the 3rd bolt 23, locking spring 24, the 4th bolt 25 is formed, described support plate plate body 70 is provided with special-shaped support plate perforate 26, have boss 70-1 on abnormity support plate perforate 26 inwalls, correspondence position with boss 70-1 on support plate plate body 70 has screw 36, described piezoelectric sensor 22 is between the first sensor compressing tablet 21 and the second sensor compressing tablet 71, and the three is pressed on the boss 70-1 by the 3rd bolt 23 that is contained in screw 36 1 ends, the 4th bolt 25 screws in the other end of screw 36, the 3rd bolt 23, locking spring 24 is housed between the 4th bolt 25.
Electromagnetic clutch positioning seat 3 is pressed in first unthreaded hole 27 on the second support plate assembly 19 by magnet yoke of electromagnetic clutch dish 6, to guarantee the concentricity of magnet yoke of electromagnetic clutch dish 6 and main shaft 29.Be respectively equipped with two mounting holes 20 on the first support plate assembly 2, the second support plate assembly 19, the utility model can be installed on the casing of dynamic balancing machine by these four mounting holes 20.
Embodiment two: as shown in Figure 4, the described velocity-measuring system assembly 62 of present embodiment is by grating dish mount pad 11, grating dish 12, light clapboard 16, light clapboard support 17, first photoelectric interrupter 38, second photoelectric interrupter 39 is formed, grating dish mount pad 11 is fixed on the right side of main shaft 29, described grating dish 12 is installed on the grating dish mount pad 11, grating dish 12 is provided with several teeth 36, it is the dark teeth groove 37 of zero degree that two teeth groove between the tooth are wherein arranged, first photoelectric interrupter 38, second photoelectric interrupter 39 is positioned at the lower end of grating dish 12, first photoelectric interrupter 38, second photoelectric interrupter 39 is fixed on the light clapboard 16, and light clapboard 16 is installed on the light clapboard support 17.The model of electronic component first photoelectric interrupter 38 is ST180, and the model of electronic component second photoelectric interrupter 39 is ST254C.The described velocity-measuring system assembly 62 of present embodiment have measuring method simply, advantage accurately.Other composition is identical with embodiment one with annexation.
Embodiment three: as shown in figs. 1 and 3, the described velocity-measuring system assembly 62 of present embodiment also comprises light separate seat 18, and an end of described smooth separate seat 18 and the bottom of light clapboard support 17 are affixed, and the other end of light separate seat 18 and the second support plate assembly, 19 bottoms are affixed.So design makes compact overall structure.Other composition is identical with embodiment one with annexation.
Embodiment four: as shown in figs. 1 and 3, present embodiment also comprises first jump ring 31, and described first jump ring 31 is installed on the main shaft 29 of right-hand member of friction disc 7 and with friction disc 7 contacts and is connected.Friction disc 7 is fixed on the main shaft 29, radially by key 30 location, axially by jump ring 31 location.Other composition is identical with embodiment one with annexation.
Embodiment five: as shown in figs. 1 and 3, present embodiment also comprises second jump ring 35, and described second jump ring 35 is installed on the first step 34 of belt pulley 13 and with the left end contact of disk spring 15 and is connected.One end of disk spring 15 is pressed on the jump ring of installing on the first step 34 35, and an end is pressed on the armature holder 9.Second jump ring 35 plays the effect of location.Other composition is identical with embodiment one with annexation.
Principle of work;
When measuring the unbalance dynamic of wheel, wheel is installed in axle to be fastened, start equilibrator, this moment is to 6 power supplies of magnet yoke of electromagnetic clutch dish, make friction disc 7 and armature 8 adhesives, starter motor drives belt pulley 13 rotations, belt pulley 13 drives friction disc 7 by the socket head cap screws in three unthreaded holes 32 10 and rotates with main shaft, single-chip microcomputer detects the angular velocity of grating dishes 12 by light clapboard 16, when reaching certain angular velocity, stops motor, and stop to 6 power supplies of magnet yoke of electromagnetic clutch dish, armature 8 is pushed away friction disc 7 by disk spring under the drive of armature holder 9 at this moment, and belt pulley 13 is slided on rolling bearing 14.Equilibrator was in and slided sample phase this moment, the unbalancing value of wheel causes spindle vibration, owing on the first support plate assembly 2 and the second support plate assembly 19, have special-shaped support plate perforate 26, support plate the rigidity here reduces, therefore vibration signal is bigger, collect vibratory output by the piezoelectric sensor 22 that is installed in here, just can calculate the unbalancing value of wheel.After sampling finishes, repeat the attracting process of electromagnetic clutch, be the anti-phase power supply of motor, brake wheel detects angular velocity when very little, and stopping is motor and 6 power supplies of magnet yoke of electromagnetic clutch dish, and shows last measurement result.Measurement result can be pointed out the size of amount of unbalance and the position at amount of unbalance place, and we find uneven point by the number of teeth that differs between position of calculating the amount of unbalance place and the dark teeth groove 37 of zero degree.As zero degree, second photoelectric interrupter 39 was double slit photoelectric interrupters when the dark teeth groove 37 of zero degree was passed through first photoelectric interrupter 38, and it can detect the direction of wheel rotation and the number of teeth that turns over.Like this, detect first photoelectric interrupter 38 and second photoelectric interrupter 39 by single-chip microcomputer, just can know that the unbalance dynamic point adds the mass that equates with amount of unbalance with respect to the position of the dark teeth groove 37 of zero degree on the opposite of imbalance point on the wheel, just can be with the wheel levelling.
The support stiffness of dynamic wheelo balancer is very high, approaches the bearing rigidity of rotor, can make balance condition close with the wheel actual condition.Rotor has two correcting planes, so be necessary that the out-of-balance force signal that the supporting plane place is measured is converted to two correcting planes and gets on.The support pattern of dynamic wheelo balancer is a cantilever support, as shown in Figure 5:
According to mechanics principle, should satisfy ∑ F=0 and ∑ M=0 in the accompanying drawing two power system, equilibrium condition (power and the moment of F, M representative power respectively system) then has:
Separate 1. formula, the centrifugal force that can get on two measurement planes of rotor is respectively:
2. formula shows, can converse the centrifugal force on two planes of rotor by the dynamic pressure of bearing on the measurement carrying plane, in the formula:
F
L, F
R-be the dynamic pressure of bearing on the supporting plane of the left and right sides;
f
L, f
R-for the centrifugal force of unbalance mass, generation is arranged on the supporting plane of the left and right sides;
m
L, m
R-be the unbalance mass, on the rotor left and right plane;
A, b, the distance in the c-accompanying drawing four between relevant position (b is rotor thickness)
r
L, r
RThe correction radius of-rotor left and right plane is promptly laid to proofread and correct and is used unbalance mass, m
L, m
RThe position to the distance of pivot center
ω-angular velocity of rotation
Since a, b, c, r
L, r
R, ω
2And F
L, F
RBe known, and centrifugal force f=Mr ω
2, the unbalancing value U=mr (gmm) of tested wheel and proofread and correct and to use unbalance mass, m then
L, m
RFor:
The aforementioned calculation explanation is if the geometric parameter of rotor and balancing speed determine that then the amount of unbalance on rotor two correcting planes can directly be measured with the correction mass (g) that should add.
Claims (5)
1, the dynamic wheel balancing arbor of the hard supporting structure of a kind of outer cantilever system, it comprises axle sleeve (1), main shaft (29), electromagnetic clutch positioning seat (3), armature holder (9), belt pulley (13), clutch shaft bearing (60), bearing (14), disk spring (15), velocity-measuring system assembly (62); It is characterized in that it also comprises the first support plate assembly (2), the second support plate assembly (19), electromagnetic clutch (61), described electromagnetic clutch (61) is by magnet yoke of electromagnetic clutch dish (6), friction disc (7), armature (8) is formed, described axle sleeve (1) is installed on the main shaft (29), axle sleeve (1) passes the first support plate assembly (2) and affixed with the first support plate assembly (2), it is last and affixed with the right side of axle sleeve (1) that the described second support plate assembly (19) is installed in main shaft (29) by clutch shaft bearing (60), on the main shaft (29) of second support plate assembly (19) right-hand member, electromagnetic clutch positioning seat (3) is installed successively from left to right, friction disc (7), belt pulley (13), described magnet yoke of electromagnetic clutch dish (6) is affixed with the second support plate assembly (19), armature holder (9) is installed on the belt pulley (13), the center pit of armature holder (9) and belt pulley (13) are gone up second step (33) sliding fit that is provided with, described armature (8) is fixed on the armature holder (9), leave certain interval between friction disc (7) and the armature (8), on the first step (34) of belt pulley (13) disk spring (15) is installed, between described belt pulley (13) and the main shaft (29) bearing (14) is housed, velocity-measuring system assembly (62) is fixed on the right side of main shaft (29); The described first support plate assembly (2) and the second support plate assembly (19) are by support plate plate body (70), first sensor compressing tablet (21), the second sensor compressing tablet (71), piezoelectric sensor (22), the 3rd bolt (23), locking spring (24), the 4th bolt (25) is formed, described support plate plate body (70) is provided with special-shaped support plate perforate (26), have boss (70-1) on abnormity support plate perforate (26) inwall, correspondence position last at support plate plate body (70) and boss (70-1) has screw (36), described piezoelectric sensor (22) is positioned between the first sensor compressing tablet (21) and the second sensor compressing tablet (71), and the three is pressed on the boss (70-1) by the 3rd bolt (23) that is contained in screw (36) one ends, the 4th bolt (25) screws in the other end of screw (36), the 3rd bolt (23), locking spring (24) is housed between the 4th bolt (25).
2, the dynamic wheel balancing arbor system of the hard supporting structure of outer cantilever according to claim 1, it is characterized in that described velocity-measuring system assembly (62) is by grating dish mount pad (11), grating dish (12), light clapboard (16), light clapboard support (17), first photoelectric interrupter (38), second photoelectric interrupter (39) is formed, grating dish mount pad (11) is fixed on the right side of main shaft (29), described grating dish (12) is installed on the grating dish mount pad (11), grating dish (12) is provided with several teeth (36), it is dark teeth groove of zero degree (37) that two teeth groove between the tooth are wherein arranged, first photoelectric interrupter (38), second photoelectric interrupter (39) is positioned at the lower end of grating dish (12), first photoelectric interrupter (38), second photoelectric interrupter (39) is fixed on the light clapboard (16), and light clapboard (16) is installed on the light clapboard support (17).
3, the dynamic wheel balancing arbor of the hard supporting structure of outer cantilever according to claim 2 system, it is characterized in that described velocity-measuring system assembly (62) also comprises light separate seat (18), the bottom of one end of described smooth separate seat (18) and light clapboard support (17) is affixed, and the other end of light separate seat (18) and second support plate assembly (19) bottom are affixed.
4, the dynamic wheel balancing arbor of the hard supporting structure of outer cantilever according to claim 2 system, it is characterized in that it also comprises first jump ring (31), the main shaft (29) that described first jump ring (31) is installed in the right-hand member of friction disc (7) upward and with friction disc (7) contact is connected.
5, the dynamic wheel balancing arbor of the hard supporting structure of outer cantilever according to claim 2 system, it is characterized in that it also comprises second jump ring (35), the first step (34) that described second jump ring (35) is installed in belt pulley (13) upward and with the left end contact of disk spring (15) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201178399U CN201138268Y (en) | 2007-12-28 | 2007-12-28 | Dynamic wheel balancer axes set with hard support structure of outer cantilever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201178399U CN201138268Y (en) | 2007-12-28 | 2007-12-28 | Dynamic wheel balancer axes set with hard support structure of outer cantilever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138268Y true CN201138268Y (en) | 2008-10-22 |
Family
ID=40038952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201178399U Expired - Fee Related CN201138268Y (en) | 2007-12-28 | 2007-12-28 | Dynamic wheel balancer axes set with hard support structure of outer cantilever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138268Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344385A (en) * | 2013-07-04 | 2013-10-09 | 上海工程技术大学 | Crankshaft dynamic balance acquisition method based on finite elements |
| CN106932142A (en) * | 2017-03-13 | 2017-07-07 | 哈尔滨朗格科技开发有限公司 | Detect the balancing machine and the method using unbalance mass, in the dynamic and static balance of balance machine testing of bike wheel |
-
2007
- 2007-12-28 CN CNU2007201178399U patent/CN201138268Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344385A (en) * | 2013-07-04 | 2013-10-09 | 上海工程技术大学 | Crankshaft dynamic balance acquisition method based on finite elements |
| CN106932142A (en) * | 2017-03-13 | 2017-07-07 | 哈尔滨朗格科技开发有限公司 | Detect the balancing machine and the method using unbalance mass, in the dynamic and static balance of balance machine testing of bike wheel |
| CN106932142B (en) * | 2017-03-13 | 2019-04-19 | 哈尔滨朗格科技开发有限公司 | The method for detecting the balancing machine of bike wheel and detecting unbalance mass, |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111380635B (en) | Motor torque ripple test bench and test method | |
| CN106595433B (en) | A kind of measurement method and measuring device of bearing inner race circular runout | |
| RU2711716C2 (en) | Method and device for dynamic balancing of rotating body | |
| CN102501141B (en) | Numerical control machine main shaft site dynamic balance method based on built-in sensor | |
| CN203011629U (en) | Dynamic balancing machine calibration system | |
| KR20090129361A (en) | Tire testing machine and tire testing method | |
| CN110567660B (en) | Unbalance excitation test bed for elastic support rotor system and method for measuring rigidity of elastic ring of unbalance excitation test bed | |
| CN108592845B (en) | A kind of experimental provision that backlash is variable | |
| CN106017758A (en) | Online synchronous test device and method for dynamic/static torque of motor | |
| CN112082695B (en) | Motor field dynamic balance correction and vibration detection method | |
| CN112345245B (en) | Bearing static stiffness test device and test method thereof | |
| CN108507785B (en) | Device and method for testing dynamic characteristics of main shaft in rotation state | |
| CN2927017Y (en) | Torque-inspecting mechanism of electric executing mechanism | |
| CN201138268Y (en) | Dynamic wheel balancer axes set with hard support structure of outer cantilever | |
| CN102539039A (en) | Method and equipment for measuring friction torque of radially loaded bearing | |
| CN109506933A (en) | Transmission mechanism test platform for comprehensive performance | |
| US7089806B2 (en) | Device and method for measuring torque on an electric motor | |
| KR100941467B1 (en) | Dynamic Balancing Apparatus and Methods using a Linear Time-varying Angular Velocity Model | |
| CN104165729B (en) | A kind of dynamic balance method of high speed rotor | |
| CN113125153A (en) | Torsional vibration testing device of power transmission system | |
| CN205520745U (en) | Electricity main shaft mechatronic detecting system | |
| CN103344371B (en) | Electrical inertia tire brake tester and electrical inertia control method thereof | |
| CN211178353U (en) | Infrared induction type workpiece coaxiality measuring device | |
| CN201622039U (en) | Bevel gear detection tool | |
| CN110095283B (en) | Gear dynamics testing device considering bearing time-varying excitation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20111228 |