CN116086795A - Transmission testing device adopting acid-corrosion-resistant steel gear - Google Patents
Transmission testing device adopting acid-corrosion-resistant steel gear Download PDFInfo
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- CN116086795A CN116086795A CN202211718958.5A CN202211718958A CN116086795A CN 116086795 A CN116086795 A CN 116086795A CN 202211718958 A CN202211718958 A CN 202211718958A CN 116086795 A CN116086795 A CN 116086795A
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- 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
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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Abstract
The invention discloses a transmission testing device adopting an acid-corrosion-resistant steel gear, which comprises a shell and is characterized in that: the automatic control device comprises a shell, and is characterized in that a driving gear and a driven gear are arranged in the shell, a detection mechanism is arranged in the shell, the detection mechanism comprises two impellers, the two impellers are fixedly arranged on one sides of the driving gear and the driven gear, three first control balls with different friction factors are uniformly arranged on the outer sides of the impellers on one side of the driving gear, twelve second control balls with gradually increased friction factors are uniformly arranged on the outer sides of the impellers on one side of the driven gear, flexible films are arranged on the outer sides of the first control balls and the second control balls, a fixed shell is arranged on the outer sides of the flexible films, a rotating part is connected to an outer side pipeline of the fixed shell, a control chamber is arranged on the lower side of the rotating part, and a piston is connected to the inner side of the control chamber in a sliding mode.
Description
Technical Field
The invention relates to the technical field of transmission testing, in particular to a transmission testing device adopting an acid-corrosion-resistant steel gear.
Background
The gear is a mechanical element with a rim, the gear is continuously meshed to transmit motion and power, along with the development of production, the stability of gear operation is emphasized, the existing gear can be delivered only through a weight test after being produced, the existing gear testing device has single function and weak early warning capability, and the existing gear testing device cannot discharge the influence of some human factors on the testing result. Therefore, it is necessary to design a transmission testing device which can automatically discharge human factor interference and has a certain early warning capability and adopts an acid corrosion resistant steel gear.
Disclosure of Invention
The invention aims to provide a transmission testing device adopting an acid-corrosion-resistant steel gear, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an adopt transmission testing arrangement of acid-proof steel gear, includes casing, its characterized in that: the inside of casing is provided with driving gear and driven gear, the inside of casing is provided with detection mechanism, detection mechanism includes two impellers, two the equal fixed mounting of impeller is in one side of driving gear and driven gear, the impeller outside of driving gear one side evenly is provided with the different first control ball of three friction factor, the one side impeller outside of driven gear evenly is provided with twelve friction factor second control balls that increase gradually, the outside of first control ball and second control ball all is provided with the flexible membrane, the outside of flexible membrane is provided with the fixed shell.
According to the technical scheme, the outside pipe connection of fixed shell has rotation portion, the downside of rotation portion is provided with the control room, the inside sliding connection of control room has the piston, one side pipe connection of control room has tensile portion, the downside of tensile portion is provided with circular traction rope.
According to the technical scheme, the inside of casing is provided with urgent mechanism, urgent mechanism includes two fixed axles, two fixed axle fixed mounting is in one side of driving gear and driven gear, one side of fixed axle is provided with the connecting rod, the sliding block has been cup jointed to one side of connecting rod, one side of fixed axle is provided with the elastic membrane, the outside of elastic membrane is provided with the cover shell, the outside pipe connection of cover shell has the revolving chamber, the inboard sliding connection of revolving chamber has the triangle piece, the downside of triangle piece is provided with the speed reduction gasbag, speed reduction gasbag pipe connection is on the fixed axle.
According to the technical scheme, the upper end of the shell is provided with the temperature film, the upper end pipeline of the temperature film is connected with the second pressure valve, one side pipeline of the second pressure valve is connected with the sprayer, and the lower end pipeline of the second pressure valve is connected with the regulator.
According to the technical scheme, the downside of casing is provided with the vibrating diaphragm, the downside pipeline of vibrating diaphragm is connected with centrifugal shell, centrifugal ball's inside is provided with, centrifugal ball's outside sliding connection has the control lever, the outside of control lever is provided with the pressure membrane, centrifugal shell's outside pipe connection has adjustable check valve, adjustable check valve's downside is provided with adjustment part, the outside of adjustment part is provided with judges the shell, adjustable check valve's upside pipeline is connected with the clamping part.
According to the technical scheme, the two side pipelines of the compressing part are connected with the first pressure valve, one end pipeline of the first pressure valve is connected with the repairing part, the other end pipeline of the first pressure valve is connected with the speed reducing part, and the speed reducing part is fixedly arranged on the fixed shaft.
According to the technical scheme, one side of the shell is provided with the pressure discriminator, one end pipeline of the pressure discriminator is connected with the expansion bag, and one side pipeline of the expansion bag is connected with the third pressure valve.
According to the technical scheme, the left side and the right side of the expansion bag are provided with the one-way valves.
According to the technical scheme, the centrifugal chamber is divided into an upper chamber and a lower chamber, and the two chambers are provided with one-way conduction devices.
According to the technical scheme, the lower end of the vibrating diaphragm is uniformly provided with the rectifying part.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the detection mechanism is arranged, so that the device can detect the transmission ratio and the transmission stability of gear transmission and adjust small considered factors, and the emergency mechanism is arranged, so that the device can perform corresponding actions when an emergency occurs.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic diagram of the detection mechanism of the present invention;
FIG. 3 is an enlarged schematic view of a portion A of FIG. 2;
FIG. 4 is a schematic diagram of the early warning mechanism of the present invention;
in the figure: 1. a housing; 2. a drive gear; 3. a driven gear; 4. a detection mechanism; 41. an impeller; 42. a first control ball; 43. a second control ball; 44. a rotating part; 45. a control room; 46. a piston; 47. a stretching section; 48. a circular traction rope; 49. a rectifying unit; 410. a vibrating membrane; 411. a first pressure valve; 412. a centrifugal ball; 413. a pressure membrane; 414. a pressing part; 415. a sprinkler; 416. a second pressure valve; 417. a temperature film; 419. judging the shell; 420. an adjusting section; 421. an adjustable one-way valve; 5. an emergency mechanism; 51. a rotating chamber; 52. a casing; 53. a fixed shaft; 55. triangular blocks; 56. a deceleration air bag; 57. a pressure discriminator; 58. an inflation bladder; 59. and a third pressure valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides an adopt transmission testing arrangement of acid-proof steel gear, includes casing 1, its characterized in that: the inside of the shell 1 is provided with a driving gear 2 and a driven gear 3, the inside of the shell 1 is provided with a detection mechanism 4, the detection mechanism 4 comprises two impellers 41, the two impellers 41 are fixedly arranged on one side of the driving gear 2 and one side of the driven gear 3, three first control balls 42 with different friction factors are uniformly arranged on the outer side of the impeller 41 on one side of the driving gear 2, twelve second control balls 43 with gradually increased friction factors are uniformly arranged on the outer side of the impeller 41 on one side of the driven gear 3, flexible films are respectively arranged on the outer sides of the first control balls 42 and the second control balls 43, and a fixed shell is arranged on the outer side of the flexible film; in the transmission test process of the gears, the transmission ratio is particularly important, and in the transmission ratio test, the influence of certain assembly factors, namely coaxiality and the like exists, and secondly, the stability test of the gears is also an important part of the transmission test, and the detection mechanism aims at detecting whether the transmission ratio between the two mechanisms is a normal value or not, can test the stability of the gears, and can autonomously eliminate the influence of human factors in the test process; the driving gear rotates, the first control balls with the same friction factors can be sequentially thrown at the positions with the increase of the speed, the driven gear can sequentially throw one to twelve second control balls with the increase of the speed, the thrown balls are more, the volume of the flexible film is larger, liquid between the flexible film and the fixed shell can be extruded, the transmission ratio between the flexible film and the fixed shell can be judged according to the quantity of liquid extruded by the driving gear and the driven gear, through the steps, when the transmission ratio is one to three, the driving gear throws one ball, when the impact gear throws one ball or one ball is not thrown, the driving gear is judged to have a great thought error or parameter setting error, at the moment, the hydraulic signal can cut off the driving gear and the driven gear, and the detector is opened, when the driving gear throws two balls, the impact gear is judged to have a certain artificial factor to influence an experiment, the device can automatically adjust and try to eliminate the thought factor, when the driving gear throws one ball, when the impact gear throws three balls, the impact gear is judged to be the driving gear to be the ball, and the driving gear is judged to be the driving gear to be the ball to be normally stopped, and the driving gear is judged to be the ball to be the driving gear to be normally, and the driving gear is judged to be the ball to be normally, and the driving gear to be the ball to be normally thrown.
The outer side pipeline of the fixed shell is connected with a rotating part 44, a control chamber 45 is arranged at the lower side of the rotating part 44, a piston 46 is connected in the control chamber 45 in a sliding manner, a stretching part 47 is connected with one side pipeline of the control chamber 45, and a circular pulling rope 48 is arranged at the lower side of the stretching part 47; after the test starts, liquid in the fixed shell is extruded to drive the rotating part to rotate, liquid in the piston is extruded to the stretching part, and under normal conditions, the rotating part on one side of the driven gear is consistent with the rotating part on one side of the driving gear, through the steps, the pressure at two ends of the end can be judged through the stretching part, when the left side pressure of the stretching part is larger and the right side pressure is smaller, the stretching part rotates leftwards, the elastic stretching part pulls the circular stretching rope to pull the driven gear to move along an elliptical track, the coaxiality of the driven gear is adjusted while meshing with the driving gear, when the pressures at two sides of the stretching part are consistent, the stretching part does not rotate to keep a normal working state, when the pressure at the left side of the stretching part is smaller and the pulling force at the right side is larger, the abnormal condition is judged to occur at the moment, namely, the stretching part drives the circular stretching rope to tighten the driving gear under the addition of the transmission ratio, the driving gear is slowed down, and the test is stopped.
The emergency mechanism 5 is arranged in the shell 1, the emergency mechanism 5 comprises two fixed shafts 53, the two fixed shafts 53 are fixedly arranged on one side of the driving gear 2 and the driven gear 3, a connecting rod is arranged on one side of the fixed shafts 53, a sliding block is sleeved on one side of the connecting rod, an elastic membrane is arranged on one side of the fixed shafts 53, a casing 52 is arranged on the outer side of the elastic membrane, a rotating chamber 51 is connected with an outer side pipeline of the casing 52, a triangular block 55 is connected with the inner side of the rotating chamber 51 in a sliding manner, a deceleration air bag 56 is arranged on the lower side of the triangular block 55, and the deceleration air bag 56 is connected with the fixed shafts 53 in a pipeline manner; the emergency mechanism is used for preventing the device from possibly generating emergency situations in the process of autonomously adjusting the influence of human factors or in the process of running, and when the emergency situations occur, the device can perform corresponding actions; when the driving gear or the driven gear rotates, the sliding block is thrown out due to the influence of centrifugal force, and under normal conditions, the distance between the driving gear and the sliding block of the driven gear is consistent, the sliding block is thrown out, a solution between the elastic membrane and the casing can be extruded, a hydraulic signal is transmitted to the rotating chamber, the triangular block in the rotating chamber can rotate under the action of external force, and the triangular block can compress the deceleration air bag arranged below the triangular block while rotating. Under normal conditions, the hydraulic pressure at two ends of the triangular block is equal, the three pieces of the triangular block do not rotate, when a small gap exists between the left side pressure and the right side pressure of the triangular block, the situation that the driving gear or the driven gear lacks teeth is judged, the triangular block rotates, the reduction air bag is compressed, the driving gear and the driven gear are reduced, the reduction air bag is compressed again when the position lacking teeth is rotated again, the reduction air bag can stop the driving gear and the impulse gear, the position where the two gears are meshed at the moment is the position lacking teeth, when the hydraulic pressure at two sides of the triangular block generates a large difference, any one of the two gears is judged to be clamped, the triangular block rotates at the moment, the liquid flows out from the lower side of the rotating chamber, the two gears are pushed away, the reduction air bag is compressed, the two gears are gradually reduced, the occurrence of tooth beating situation is prevented, the damage of the gears is caused, or the splashing of the gear teeth is generated.
The upper end of the shell 1 is provided with a temperature film 417, the upper end pipeline of the temperature film 417 is connected with a second pressure valve 416, one side pipeline of the second pressure valve 416 is connected with a sprayer 415, and the lower end pipeline of the second pressure valve 416 is connected with a regulator; the temperature membrane can feel the inside temperature of casing, when temperature height makes the temperature membrane expand upwards, when the temperature reduces, the temperature membrane contracts downwards, the pressure of temperature membrane upside can be transmitted to the second pressure valve through the pipeline, second pressure valve controllable regulator and sprinkler, through above-mentioned step, can realize, when the temperature risen gradually, the regulator is opened to the second pressure valve, adjust the power that reduces the bearing and compress tightly on the gear, and judge whether the temperature continues the temperature to rise this moment, the regulator can stop adjusting the clamp force that just control the sprinkler and be close to the bearing that the temperature is higher, the nearer the temperature, when the temperature is higher than certain threshold value, the device can start the sprinkler and spray water to the bearing for its cooling down, and will gradually retract the sprinkler after the temperature reduces, prevent that the unexpected damage of sprinkler from appearing in the in-process that the gear was operated from appearing.
The lower side of the shell 1 is provided with a vibrating diaphragm 410, a lower side pipeline of the vibrating diaphragm 410 is connected with a centrifugal shell, a centrifugal ball 412 is arranged in the centrifugal shell, a control rod is connected to the outer side of the centrifugal ball 412 in a sliding mode, a pressure membrane 413 is arranged on the outer side of the control rod, an adjustable one-way valve 421 is connected to an outer side pipeline of the centrifugal shell, an adjusting part 420 is arranged on the lower side of the adjustable one-way valve 421, a judging shell 419 is arranged on the outer side of the adjusting part 420, and a pressing part 414 is connected to an upper side pipeline of the adjustable one-way valve 421; the vibration membrane can feel noise and starts vibrating under the effect of the noise, liquid flow is generated, the liquid flow drives the centrifugal ball to rotate, at the moment, the control rod is driven to move upwards under the action of the centrifugal force, the pressure membrane is supported, a part of liquid is extruded out and enters the adjustable one-way valve, when the adjustable one-way valve can be conducted, liquid can enter the pressing part to press two gears, through the steps, the vibration membrane can convert a vibration signal into a hydraulic signal when the inside of the shell is judged to generate larger noise, the vibration membrane can judge what is caused by the noise condition in the shell at the moment according to the judging part, when the pressure on the left side of the judging part is larger, the judging part judges that the transmission ratio of the driving and driven gears at the moment is not a normal value, at the moment, the noise is possibly generated when the detecting mechanism is regulated, the left side of the adjusting part rotates, the one-way valve is still in a cut-off state, when the pressure on the right side of the judging part is larger, the inside of the device is judged to generate abnormal conditions, the noise generated when the two gears are judged to be abnormal conditions, the right side of the adjusting part rotates, the one-way valve is still in the cut-off state, when the two sides of the device keep consistent pressure is kept, the two gears are in a big condition, and the two sides of the adjustable gears are driven to rotate, and the two sides of the adjusting part is driven to rotate, and the one-way valve is driven to rotate.
The two side pipelines of the compressing part 414 are connected with a first pressure valve 411, one end pipeline of the first pressure valve 411 is connected with a repairing part, the other end pipeline of the first pressure valve 411 is connected with a speed reducing part, and the speed reducing part is fixedly arranged on the fixed shaft 53; after two gears are pressed, residual liquid enters a first pressure valve through a pressing part, the pressure is judged by the first pressure valve, noise is still generated after the two gears are pressed, the hydraulic pressure in the second pressure valve is continuously increased, the upper side switch of the second pressure valve is in low-pressure conduction, and the left side of the second pressure valve is in high-pressure conduction.
One side of the casing 52 is provided with a pressure discriminator 57, one end pipeline of the pressure discriminator 57 is connected with an expansion bag 58, and one side pipeline of the expansion bag 58 is connected with a third pressure valve 59; the pressure discriminator can identify the pressure magnitude on the shaft, when two gear teeth are meshed, the two discriminators are respectively subjected to upward or downward force, so that the internal liquid is transferred to the other discriminator, when the internal liquid pressure of the expansion bag is slightly changed, the larger pressure change can be output.
The left and right sides of the expansion bag 58 are provided with one-way valves; the liquid can only flow in from the left side of the expansion bag and flow out from the right side, and through the steps, the hydraulic change in the expansion bag can be realized only from the abnormal condition which occurs when the expansion bag is meshed with the gear teeth, so that the hydraulic change of the expansion bag is avoided under the action of gas factors.
The centrifugal chamber is divided into an upper chamber and a lower chamber, and the two chambers are provided with one-way conduction devices; the liquid flow which is left and right and is generated by the vibrating diaphragm can flow into the upper cavity and flow out of the lower cavity, so that the liquid flow which is left and right and is flowing in the centrifugal chamber, and through the steps, smaller noise can be realized, the centrifugal ball can be driven to rotate, and the phenomenon that the liquid flow generated by small noise cannot drive the centrifugal ball to rotate is avoided.
The rectifying portion 49 is uniformly provided at the lower end of the diaphragm 410; the rectifying part can integrate and convert the hydraulic disturbance generated by the vibrating diaphragm into more regular alternating current hydraulic change and amplify the alternating current hydraulic change, and through the steps, the vibration generated by noise can be integrated and amplified, so that the hydraulic change generated by the noise is prevented from being too small, and the centrifugal ball cannot be driven.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an adopt transmission testing arrangement of acid-proof steel gear, includes casing (1), its characterized in that: the novel intelligent automatic control device is characterized in that a driving gear (2) and a driven gear (3) are arranged in the shell (1), a detection mechanism (4) is arranged in the shell (1), the detection mechanism (4) comprises two impellers (41), the two impellers (41) are fixedly arranged on one sides of the driving gear (2) and the driven gear (3), three first control balls (42) with different friction factors are uniformly arranged on the outer sides of the impellers (41) on one side of the driving gear (2), twelve second control balls (43) with increasing friction factors are uniformly arranged on the outer sides of the impellers (41) on one side of the driven gear (3), flexible films are respectively arranged on the outer sides of the first control balls (42) and the second control balls (43), and a fixed shell is arranged on the outer sides of the flexible films;
the liquid is arranged between the flexible film and the fixed shell, and the transmission ratio between the driving gear (2) and the driven gear (3) can be judged according to the quantity of the liquid extruded by the driving gear and the driven gear;
the inside of casing (1) is provided with emergency mechanism (5), emergency mechanism (5) include two fixed axle (53), two fixed axle (53) fixed mounting is in one side of driving gear (2) and driven gear (3), one side of fixed axle (53) is provided with the connecting rod, the sliding block has been cup jointed to one side of connecting rod, one side of fixed axle (53) is provided with the elastic membrane, the outside of elastic membrane is provided with cover shell (52), the outside pipe connection of cover shell (52) has revolving chamber (51), the inboard sliding connection of revolving chamber (51) has triangle piece (55), the downside of triangle piece (55) is provided with speed reduction gasbag (56), speed reduction gasbag (56) pipe connection is on fixed axle (53).
2. A transmission testing apparatus employing an acid etch resistant steel gear as claimed in claim 1, wherein: the upper end of casing (1) is provided with temperature membrane (417), the upper end pipe connection of temperature membrane (417) has second pressure valve (416), one side pipe connection of second pressure valve (416) has sprinkler (415), the lower extreme pipe connection of second pressure valve (416) has the regulator.
3. A transmission testing apparatus employing an acid etch resistant steel gear as claimed in claim 2, wherein: the utility model discloses a centrifugal shell, including casing (1), centrifugal ball (412), pressure membrane (413) are provided with outside sliding connection of centrifugal ball (412), outside pipe connection of casing (1) has adjustable check valve (421), the downside of adjustable check valve (421) is provided with adjustment portion (420), the outside of adjustment portion (420) is provided with judges shell (419), the upside pipe connection of adjustable check valve (421) has compacting part (414).
4. A transmission testing apparatus employing an acid etch resistant steel gear according to claim 3, wherein: the two sides of the pressing part (414) are connected with a first pressure valve (411), one end of the first pressure valve (411) is connected with a repairing part, the other end of the first pressure valve (411) is connected with a speed reducing part, and the speed reducing part is fixedly arranged on a fixed shaft (53).
5. A transmission testing apparatus employing an acid etch resistant steel gear as set forth in claim 4, wherein: one side of the shell (52) is provided with a pressure discriminator (57), one end pipeline of the pressure discriminator (57) is connected with an expansion bag (58), and one side pipeline of the expansion bag (58) is connected with a third pressure valve (59).
6. A transmission testing apparatus employing an acid etch resistant steel gear as set forth in claim 5, wherein: the left side and the right side of the expansion bag (58) are respectively provided with a one-way valve.
7. A transmission testing apparatus employing an acid etch resistant steel gear as set forth in claim 6, wherein: the centrifugal chamber is divided into an upper chamber and a lower chamber, and the two chambers are provided with one-way conduction devices.
8. A transmission testing apparatus employing an acid etch resistant steel gear as set forth in claim 7 wherein: the lower end of the vibrating membrane (410) is uniformly provided with a rectifying part (49).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211718958.5A CN116086795A (en) | 2021-01-14 | 2021-01-14 | Transmission testing device adopting acid-corrosion-resistant steel gear |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110050658.3A CN112816209B (en) | 2021-01-14 | 2021-01-14 | Transmission testing device adopting acid-corrosion-resistant steel gear |
| CN202211718958.5A CN116086795A (en) | 2021-01-14 | 2021-01-14 | Transmission testing device adopting acid-corrosion-resistant steel gear |
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| CN202110050658.3A Division CN112816209B (en) | 2021-01-14 | 2021-01-14 | Transmission testing device adopting acid-corrosion-resistant steel gear |
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| CN202110050658.3A Active CN112816209B (en) | 2021-01-14 | 2021-01-14 | Transmission testing device adopting acid-corrosion-resistant steel gear |
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| US7017340B2 (en) * | 2004-08-18 | 2006-03-28 | Ford Global Technologies, Llc | Hydrokinetic torque converter for an automatic vehicle transmission |
| US8544331B2 (en) * | 2008-12-04 | 2013-10-01 | University Of Ottawa | Parameter independent detection of rotating machinery faults |
| CN101566525A (en) * | 2009-05-07 | 2009-10-28 | 浙江大学 | Wind mill simulation testing device |
| DE102011017516B4 (en) * | 2011-04-26 | 2018-06-21 | Zf Friedrichshafen Ag | Method for determining characteristics of an automatic transmission |
| GB2501510B (en) * | 2012-04-25 | 2019-01-09 | Mactaggart Scott | Gearbox test rig |
| CN107727394A (en) * | 2017-12-01 | 2018-02-23 | 华能国际电力股份有限公司 | A kind of method for obtaining the wind energy conversion system gear-box number of teeth |
| CN108036033B (en) * | 2018-01-19 | 2023-10-10 | 吉林大学 | High-strength transparent fluid coupling device for PIV test |
| US10641683B2 (en) * | 2018-04-02 | 2020-05-05 | Toyota Motor Engineering & Manufacturing North America, Inc. | Automatic transmission shifting performance evaluation |
| CN210243186U (en) * | 2019-08-16 | 2020-04-03 | 山东朗森机械有限公司 | Loading durable device of ground auger gearbox |
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