CN108613785B - Rolling vibration experiment platform - Google Patents
Rolling vibration experiment platform Download PDFInfo
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- CN108613785B CN108613785B CN201810756438.0A CN201810756438A CN108613785B CN 108613785 B CN108613785 B CN 108613785B CN 201810756438 A CN201810756438 A CN 201810756438A CN 108613785 B CN108613785 B CN 108613785B
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/06—Multidirectional test stands
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
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Abstract
The utility model provides a rolling vibration experiment platform, belongs to rolling vibration detection and experiment demonstration technical field, including last work roll, and goes up the work roll and include the drive side axle head that is located left end and the operation side axle head that is located right end, be equipped with at least one vibration exciter that control goes up the work roll along radial vibration on the drive side axle end, the connection of operation side axle end is equipped with the magnetic powder brake that control goes up the work roll and follows circumferencial direction torsional vibration, and magnetic powder brake and last work roll coaxial setting. The rolling vibration experiment platform can realize radial vibration and torsional vibration of a working roll on a rolling mill, and several vibration types can be independent of each other or can be combined according to research requirements; the experimental platform capable of realizing independent vibration and coupling vibration of torsion, vertical vibration and horizontal vibration of the working roll is beneficial to revealing the internal mechanism and influence rule of rolling vibration, defining the influence relation between the quality of rolled products and rolling vibration and providing effective experimental data for the research.
Description
Technical Field
The invention belongs to the technical field of rolling vibration detection and experimental demonstration, and particularly relates to a rolling vibration experimental platform.
Background
Rolling vibration is a significant technical problem that plagues iron and steel enterprises worldwide. On one hand, the strip steel product surface is formed with alternately bright and dark stripes, so that the thickness error of the strip steel product is increased, and the product quality is affected; on the other hand, severe vibration of the rolling mill may cause breakage or equipment damage accidents. How to effectively reveal the internal influence rule of rolling vibration is the key for controlling the quality of rolled products.
With respect to various vibrations generated during the operation of rolling mills, many researchers have made a lot of work. The invention relates to a measuring device for electromechanical liquid coupling vertical vibration of a rolling mill pressing system (patent number: CN 104190724A), which belongs to the technical field of rolling mill fault detection, and aims to solve the problem of electromechanical liquid coupling vertical vibration real-time detection, acquire signals from mechanical, electrical and hydraulic aspects, and analyze and reflect the electromechanical liquid coupling vertical vibration of the rolling mill through signal processing and perform on-line detection and alarm.
The invention relates to a rolling mill vibration suppression device (CN 103121037A), belonging to the field of rolling mill signal detection and automatic control, and comprising a rolling mill vibration signal source, a vibration suppression signal generator, a vibration suppression execution unit and a rolling mill; the rolling mill vibration signal source consists of a rolling mill torsional vibration signal, a rolling speed signal, a rolling mill vertical vibration signal and a rolling pressure signal; the vibration suppression signal generator consists of a signal input module, a filtering processing module, a phase identification module, a vibration suppression signal module and a signal output module; the vibration suppression executing unit is composed of a main transmission speed setting and a hydraulic roll gap setting. The invention is characterized in that: according to a rolling mill vibration signal source, vibration suppression damping signals are generated through a vibration suppression signal generator and sent to a main transmission speed setting and a hydraulic roll gap setting of a vibration suppression execution unit to participate in rolling mill control so as to reduce the energy of rolling mill vibration, so that strong vibration of a rolling mill is restrained, vibration patterns on the surfaces of a roller and a strip are eliminated, the surface quality of a product is improved, and the online service life of the roller is prolonged.
The invention relates to a device and a corresponding method for detecting the equipment state on-line vibration of a hot rolling finishing mill, belonging to the technical field of steel rolling on-line detection; the signal output ends of the vibration speed and the vibration acceleration in the device are respectively connected with the input end of the central processing module, and the output end of the central processing module is externally connected with an upper computer and an alarm device; during operation, through the storage step, the input step, the acquisition step, the operation step, the judgment step and the revision step, the equipment fault is found through vibration detection, false alarm caused by short irregular impact vibration such as steel biting impact, steel throwing impact and the like during operation of the hot rolling finishing mill equipment can be effectively reduced, and the authenticity of the alarm is increased.
The invention is focused on detection and inhibition of rolling mill vibration, belongs to postmortem and passive, and can not study rolling vibration mechanism and influence and effect of rolling vibration mechanism on forming quality of rolled materials.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a rolling vibration experiment platform which realizes radial vibration and torsional vibration of an upper working roller and provides a reliable experiment platform for rolling vibration research.
In order to solve the technical problems, the invention adopts the following technical scheme:
the rolling vibration experiment platform comprises an upper working roller, wherein the upper working roller comprises a transmission side shaft end positioned at the left end part and an operation side shaft end positioned at the right end part, a vibration exciter for controlling the upper working roller to vibrate along the radial direction is arranged on the transmission side shaft end, a magnetic powder brake for controlling the upper working roller to vibrate along the circumferential direction is connected with the operation side shaft end, and the magnetic powder brake and the upper working roller are coaxially arranged;
the bearing seat used for installing the transmission side shaft end of the upper working roller is fixedly provided with an annular guide rail, the annular guide rail is provided with a guide rail slide block which is in sliding fit with the annular guide rail, and the vibration exciter base is fixedly arranged on the guide rail slide block; the shaft end of the transmission side is fixedly provided with a clamp, and the ejector rod of the vibration exciter penetrates through the preformed hole on the clamp and is in butt joint with the peripheral surface of the shaft end of the transmission side, so that synchronous rotation of the vibration exciter and the upper working roller is realized.
In order to realize the vibration of the upper working roll in the horizontal direction and the vertical direction, the influence of the radial vibration of the upper working roll in the horizontal direction and the vertical direction on the quality of the rolled material is studied, two vibration exciters are arranged, the included angle of the circle center between the two vibration exciters is 90 degrees, the two vibration exciters are respectively a horizontal vibration exciter and a vertical vibration exciter, the horizontal vibration exciter controls the upper working roll to vibrate horizontally, and the vertical vibration exciter controls the upper working roll to vibrate vertically.
In order to not change the original rolling mill structure and make the experimental conditions as the same as the actual production conditions as possible, the shaft end of the operation side is connected with the magnetic powder brake through a coaxially arranged connecting shaft.
Preferably, in order to improve the fixing connection effect of the connecting shaft with the operation side shaft end and the magnetic powder brake, the left end portion of the connecting shaft is coaxially connected with the operation side shaft end through a sleeve type coupling, and the right end portion of the connecting shaft is coaxially connected with the magnetic powder brake through the sleeve type coupling.
In order to fix the magnetic powder brake, a supporting frame for fixing the magnetic powder brake is further fixedly arranged on the operation side shaft end, and the supporting frame is axially extended.
In order not to influence the dismantlement of last work roll, realize simultaneously the torsional vibration to last work roll, the support frame is the bifurcation structure, and bifurcation structure comprises backup pad and the horizontal bottom plate of connection backup pad of locating operation side axle end both sides along the axial, and the terminal portion of backup pad is located to horizontal bottom plate, and the magnetic powder stopper sets firmly on horizontal bottom plate.
In order to have fine power supply effect to the vibration exciter, guarantee the continuation production of vibration, the vibration exciter passes through the conducting strip and locates the conductive slip ring contact power supply of upper working roller drive side axle head, and conductive slip ring sets firmly on the side of bearing frame, and conductive slip ring and annular guide set up with one heart, and the conducting strip rigid coupling with the vibration exciter.
In practical use, in order to obtain a better rolling product, the test platform further comprises a lower working roll which is arranged in parallel with the upper working roll.
Preferably, the device further comprises a support roller, and the support roller is arranged outside the upper working roller and the lower working roller.
The beneficial effects of the invention are as follows:
1) According to the rolling vibration experiment platform, the vibration exciter for controlling the radial vibration of the upper working roller is arranged on the transmission side shaft end of the upper working roller, so that the radial vibration of the upper working roller is realized, and the research on the influence of the radial vibration of the upper working roller on the quality of rolled materials is realized; the magnetic powder brake is connected and arranged at the end of the operation side shaft, so that torsional vibration of the upper working roller along the circumferential direction is realized, the influence of the torsional vibration on the quality of rolled materials is further researched, an experimental platform is provided for the research of rolling mill vibration, the internal mechanism and the influence rule of the rolling vibration are disclosed, the rolling mill vibration is controlled from the source, and the quality of plate and strip products is further improved;
2) The horizontal vibration exciter and the vertical vibration exciter are arranged on the transmission side shaft end of the upper working roller, so that the horizontal and vertical vibration of the upper working roller can be realized, and further the research on the influence of the vibration of the upper working roller in the horizontal direction and the vertical direction on the quality of rolled materials is realized;
3) The support frame for fixing the magnetic powder brake is of a fork structure, the magnetic powder brake is fixedly arranged on a horizontal bottom plate positioned at the tail end part of the support plate, the original rolling mill structure is not changed while the torsional vibration of the upper working roller is realized, and the normal disassembly of the lower working roller is ensured;
4) The operation side shaft end is connected with the magnetic powder brake through a coaxially arranged connecting shaft, so that experimental conditions are the same as actual production conditions as much as possible on the basis of not changing the original rolling mill structure, the actual working state is simulated as much as possible, and effective experimental data are provided for the internal mechanism of rolling vibration and the influence rule of the quality of the rolled product.
Drawings
Fig. 1 is a schematic structural view of embodiment 1;
FIG. 2 is a left side view of example 1;
FIG. 3 is a right side view of example 1;
FIG. 4 is an assembly view of example 1;
FIG. 5 is a top view of the support bracket;
fig. 6 is a schematic structural view of embodiment 2;
fig. 7 is a schematic structural diagram of embodiment 3.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to fig. 1 to 7. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Example 1
The rolling vibration experiment platform adopted in the embodiment is shown in fig. 1. The rolling vibration experiment platform comprises an upper working roller 1, wherein the upper working roller 1 comprises a transmission side shaft end positioned at the left end part and an operation side shaft end positioned at the right end part, a vibration exciter 4 for controlling the upper working roller to vibrate along the radial direction is arranged on the transmission side shaft end, a magnetic powder brake 12 for controlling the upper working roller to vibrate along the circumferential direction is connected to the operation side shaft end, and the magnetic powder brake 12 and the upper working roller 1 are coaxially arranged. During operation, the vibration exciter 4 is skillfully utilized to realize radial vibration of the upper working roller, and torsional vibration of the upper working roller along the circumferential direction is realized through the magnetic powder brake 12. The output shaft of the magnetic powder brake 12 is connected with the operation side shaft end of the upper working roller, and the braking torque of the output shaft is changed by utilizing the change of the current magnitude of the magnetic powder received by the magnetic powder brake, so that the torque received by the upper working roller is changed, and torsional vibration is generated.
The transmission side shaft end of the upper working roll 1 is arranged on a bearing seat 9, and the bearing seat 9 is arranged on a frame 8. As shown in fig. 2, the bearing seat 9 is also fixedly provided with an annular guide rail 15, the annular guide rail 15 is provided with a guide rail slide block 7 in sliding fit with the annular guide rail 15, and the vibration exciter base 5 is fixedly arranged on the guide rail slide block 7; the clamping hoop 6 is further fixedly arranged at the shaft end of the transmission side, a preformed hole is formed in the clamping hoop 6, and the ejector rod of the vibration exciter 4 penetrates through the preformed hole and is in butt joint with the peripheral surface of the shaft end of the transmission side, so that synchronous rotation of the vibration exciter 4 and the upper working roller 1 is realized, no relative movement between the ejector rod of the vibration exciter 4 and the peripheral surface of the shaft end of the transmission side is ensured, and the relative action point of the vibration exciter 4 on the upper working roller 1 is kept unchanged.
In order to have continuous power supply effect to the vibration exciter 4 and ensure continuous generation of vibration, the vibration exciter 4 is in contact power supply with the conductive slip ring 2 arranged at the transmission side shaft end of the upper working roller through the conductive sheet 3, the conductive slip ring 2 is fixedly arranged on the side surface of the bearing seat 9, the conductive slip ring 2 and the annular guide rail 15 are concentrically arranged, the conductive sheet 3 is fixedly connected with the vibration exciter 4, and in normal use, the conductive sheet 3 is usually a conductive copper sheet.
The support frame 14 for fixing the magnetic powder brake is arranged on one side of the upper end of the operation side shaft, and the support frame 14 is arranged in an extending mode along the axial direction so as to ensure the stability of the magnetic powder brake 12 for applying torsional vibration to the upper working roller 1.
In actual use, the test platform further comprises a lower work roll 112 arranged parallel to the upper work roll 1, as shown in fig. 4; the upper working roll 1 and the lower working roll 112 are arranged on the inner side of the supporting roll 113. Preferably, the supporting frame 14 for fixing the magnetic powder brake 12 is provided in a bifurcated structure, and the cross-sectional shape of the supporting frame is inverted "concave" in the axial direction of the upper work roll, as shown in fig. 3 and 5. In this embodiment, the bifurcation structure is composed of a support plate 141 axially disposed on two sides of the operation side shaft end and a horizontal bottom plate 142 connected to the support plate 141, the horizontal bottom plate 142 is disposed on a distal end portion of the support plate 141, and the magnetic powder brake 12 is fixedly disposed on the horizontal bottom plate 142, so as not to affect the disassembly of the lower working roller 112, and simultaneously realize torsional vibration of the upper working roller 1.
When the rolling vibration experiment platform needs to study the influence of torsional vibration on the quality of a rolled product, the magnetic powder brake 12 is started, and various parameters of the torsional vibration of the upper working roll are controlled by controlling the magnetic powder brake 12.
When the influence of radial vibration on the quality of a rolled product is required to be studied by the rolling vibration experiment platform, the vibration exciter 4 is started, the vibration exciter 4 synchronously rotates with the upper working roller 1 along the annular guide rail 15 under the drive of the clamp 6, the action point of the vibration exciter 4 on the upper working roller 1 is ensured to be unchanged, various parameters of the radial vibration of the upper working roller 1 can be controlled by controlling the vibration parameters of the vibration exciter 4, and further, the vibration signals of the upper working roller can be acquired through a sensor, so that the study of the influence of the radial vibration of the upper working roller 1 on the performance of the rolled product is realized.
Example 2
In this embodiment, as shown in fig. 6, on the basis of embodiment 1, two guide rail sliders 7 slidably matched with the annular guide rail 15 are circumferentially arranged on the annular guide rail 15, vibration exciters 4 are respectively arranged on the guide rail sliders 7, and the included angle of the central angles of the two vibration exciters on the circumference is 90 °, and the two vibration exciters are set as a horizontal vibration exciter 41 for controlling the horizontal vibration of the upper working roller 1 and a vertical vibration exciter 42 for controlling the vertical vibration of the upper working roller 1. The vibration exciter base 5 is fixedly arranged on the corresponding guide rail sliding block 7, the clamp 6 is fixedly arranged at the shaft end of the transmission side, a preformed hole is formed in the clamp 6, the ejector rod of the vibration exciter 4 penetrates through the corresponding preformed hole and is in butt joint with the peripheral surface of the shaft end of the transmission side, synchronous rotation of the vibration exciter 4 and the upper working roller 1 is achieved, no relative motion between the ejector rod of the vibration exciter 4 and the peripheral surface of the shaft end of the transmission side is guaranteed, relative action points of the two vibration exciters 4 on the upper working roller 1 are kept unchanged, vibration of the upper working roller 1 in the horizontal direction and vibration of the upper working roller 1 in the vertical direction are achieved, and further the influence of vibration of the upper working roller 1 in the horizontal direction and vibration of the vertical direction on the quality of rolled materials is studied.
When the influence of horizontal vibration or vertical vibration on the quality of a rolled product is required to be studied by the rolling three-dimensional vibration experiment platform, a corresponding horizontal vibration exciter 41 or a corresponding vertical vibration exciter 42 is started, the horizontal vibration exciter 41 or the vertical vibration exciter 42 synchronously rotates with the upper working roller 1 along the annular guide rail 15 under the drive of the clamp 6, the action point of the vibration exciter on the upper working roller 1 is ensured to be unchanged, various parameters of horizontal or vertical vibration of the upper working roller 1 can be controlled by controlling vibration parameters of the corresponding vibration exciter, and further vibration signals of the upper working roller 1 in the horizontal or vertical direction can be collected.
When the influence of the horizontal vibration and the vertical vibration on the quality of the rolled product is required to be measured simultaneously, the horizontal vibration exciter 41 and the vertical vibration exciter 42 are started simultaneously. When the rolling vibration experiment platform needs to study the influence of horizontal vibration, vertical vibration and torsional vibration on the quality of a rolled product, the horizontal vibration exciter 41, the vertical vibration exciter 42 and the magnetic powder brake 12 can be started simultaneously, work among the horizontal vibration exciter 41, the vertical vibration exciter 42 and the magnetic powder brake is not interfered with each other, the study on the horizontal vibration and the vertical vibration of the upper working roller 1 and the torsional vibration and the study on the influence of the quality of the rolled product are realized, an experiment platform is provided for the rolling vibration study, the internal mechanism and the influence rule of the rolling vibration are helped to be revealed, the rolling vibration is controlled from the source, and the quality of a plate and a strip product is further improved.
Example 3
In this embodiment, as shown in fig. 7, on the basis of embodiment 2, the operation side shaft end is connected to the magnetic powder brake 12 through the coaxially arranged connecting shaft 10, and on the basis of not changing the original rolling mill structure, the experimental conditions are made as identical as possible to the actual production conditions. Preferably, the sleeve-type coupling comprises a first sleeve-type coupling 13 and a second sleeve-type coupling 11, the left end part of the connecting shaft 10 is coaxially connected with the operation side shaft end through the first sleeve-type coupling 13, the right end part of the connecting shaft 10 is coaxially connected with the magnetic powder brake 12 through the second sleeve-type coupling 11, the fixed connection effect of the connecting shaft 10, the operation side shaft end and the magnetic powder brake 12 is improved, meanwhile, the actual working state is simulated as much as possible, and effective experimental data are provided for researching the influence of the quality of rolled products and the internal mechanism and influence rule of rolling mill vibration.
The rolling vibration experiment platform can realize radial vibration and torsional vibration of a working roll on a rolling mill, and several vibration types can be independent of each other or can be combined according to research requirements; the experimental platform capable of realizing independent vibration and coupling vibration of the torsion, vertical and horizontal vibration of the working roll is helpful for revealing the internal mechanism and influence rule of rolling vibration, defining the influence relation between the product quality of the rolled material and the rolling vibration, and providing effective experimental data for the research.
Where the terms "first," "second," and the like are used in this patent to define components, those skilled in the art will recognize: the use of "first" and "second" is for convenience only as well as to simplify the description of the present invention, and the words described above are not meant to be limiting.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which are all within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "center", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Claims (5)
1. The utility model provides a rolling vibration experiment platform, includes the work roller, and goes up the work roller and include the drive side axle head that is located left end and the operation side axle head that is located right end, its characterized in that: the drive side shaft end is provided with a vibration exciter for controlling the upper working roller to vibrate along the radial direction, the operation side shaft end is connected with a magnetic powder brake for controlling the upper working roller to vibrate along the circumferential direction, and the magnetic powder brake and the upper working roller are coaxially arranged; the bearing seat used for installing the transmission side shaft end of the upper working roller is fixedly provided with an annular guide rail, the annular guide rail is provided with a guide rail slide block in sliding fit with the annular guide rail, and the vibration exciter base is fixedly arranged on the guide rail slide block; the shaft end of the transmission side is fixedly provided with a clamp, and an ejector rod of the vibration exciter passes through a preformed hole on the clamp and is in butt joint with the peripheral surface of the shaft end of the transmission side, so that synchronous rotation of the vibration exciter and the upper working roller is realized;
the operating side shaft end is connected with the magnetic powder brake through a coaxially arranged connecting shaft;
the left end part of the connecting shaft is coaxially connected with the operation side shaft end through a sleeve type coupler, and the right end part of the connecting shaft is coaxially connected with the magnetic powder brake through the sleeve type coupler;
the vibration exciter is powered by contacting the conductive sheet with a conductive slip ring arranged at the end of the transmission side shaft of the upper working roller, the conductive slip ring is fixedly arranged on the side surface of the bearing seat, the conductive slip ring is concentrically arranged with the annular guide rail, and the conductive sheet is fixedly connected with the vibration exciter;
the vibration exciter is provided with two vibration exciters, the included angle of the circle center between the two vibration exciters is 90 degrees, the two vibration exciters are a horizontal vibration exciter and a vertical vibration exciter, the horizontal vibration exciter controls the upper working roller to vibrate horizontally, and the vertical vibration exciter controls the upper working roller to vibrate vertically.
2. A rolling vibration laboratory platform according to claim 1, characterized in that: the magnetic powder brake is characterized in that a support frame for fixing the magnetic powder brake is further arranged at one side of the shaft end of the operation side, and the support frame is axially extended.
3. A rolling vibration laboratory platform according to claim 2, characterized in that: the supporting frame is in a fork structure; the bifurcation structure comprises a supporting plate and a horizontal bottom plate, wherein the supporting plate is axially arranged on two sides of the operation side shaft end, the horizontal bottom plate is connected with the supporting plate, the horizontal bottom plate is arranged at the tail end of the supporting plate, and the magnetic powder brake is fixedly arranged on the horizontal bottom plate.
4. A rolling vibration laboratory platform according to claim 1, characterized in that: and a lower working roll arranged in parallel with the upper working roll.
5. The rolling vibration testing platform according to claim 4, wherein: the device also comprises a supporting roller, and the supporting roller is arranged at the outer sides of the upper working roller and the lower working roller.
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| CN201810756438.0A CN108613785B (en) | 2018-07-11 | 2018-07-11 | Rolling vibration experiment platform |
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| CN201810756438.0A CN108613785B (en) | 2018-07-11 | 2018-07-11 | Rolling vibration experiment platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109297663B (en) * | 2018-10-10 | 2024-02-09 | 河南理工大学 | Precision rolling vibration test platform |
| CN109342240B (en) * | 2018-10-10 | 2023-09-12 | 河南理工大学 | Multifunctional force thermal vibration coupling friction and wear experiment platform |
| CN109341925B (en) * | 2018-11-29 | 2023-08-25 | 浙江师范大学 | Snowplow torque detection device and magnetic attraction loading type torque detection method thereof |
| CN110523783B (en) * | 2019-09-10 | 2020-08-25 | 河南理工大学 | Asynchronous rolling external vibration simulation experiment platform |
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