CN212705370U - Self-rotating base for coupling centering - Google Patents
Self-rotating base for coupling centering Download PDFInfo
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- CN212705370U CN212705370U CN202020752637.7U CN202020752637U CN212705370U CN 212705370 U CN212705370 U CN 212705370U CN 202020752637 U CN202020752637 U CN 202020752637U CN 212705370 U CN212705370 U CN 212705370U
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Abstract
The utility model provides a rotation base for shaft coupling centering relates to the technical field of shaft coupling centering equipment, needs to coil movable shaft coupling when mainly having solved among the prior art shaft coupling calibration for the technical problem of the centering calibration operation degree of difficulty. The utility model discloses a rotation base for shaft coupling centering includes mount pad and rotary platform, and the mount pad is used for treating the both ends of calibration centering with the shaft coupling to be connected, and rotary platform is articulated with the mount pad, and rotary platform is used for the installation to be used for the centering instrument of shaft coupling calibration to it is rotatory to make rotary platform can drive the centering instrument. The rotary platform is hinged to the mounting seat, so that the rotary platform can drive the centering instrument to rotate, and further the rotary motion of the tested motor and the water pump shaft is simulated and replaced under the condition of not turning the shaft coupling. The utility model discloses can effectively reduce operation intensity of labour, improve the shaft coupling and overhaul installation operating efficiency.
Description
Technical Field
The utility model relates to a technical field of shaft coupling centering equipment especially relates to a rotation base for shaft coupling centering.
Background
The coupler of the rotating shaft needs to be centered and corrected after the maintenance, installation and other work of large-scale mechanical rotating equipment at home and abroad is implemented, the traditional method is to use a magnetic gauge stand and a dial indicator to perform meter reading and error detection data, and the two ends of the coupler need to be repeatedly manually turned for half a circle to acquire data. And the other method is to use a laser centering instrument to replace a dial indicator for detection, and automatically calculate errors and adjust data. However, the ultra-large motor water pump jigger with the power of more than 1500KW can only jigger by 8-10 persons by means of a lever crowbar, and if the interval between the motor and the water pump exceeds 3 meters due to site reasons, the synchronous jigger at the two ends of the coupling can hardly be realized. In recent years, many enterprises have changed to use laser centering instruments to calibrate data, but when the ultra-large-interval coupler is calibrated, the problem that synchronous turning cannot be achieved is solved, accurate data cannot be obtained due to synchronous turning, large deviation is caused due to the fact that the calculation result of the laser centering instrument is wrong, correct data cannot be given, the working progress is slow, the quality is reduced, and in the coupler calibration operation under the working condition, the traditional mode that a bracket and a dial indicator are used for calibration is still used, the calibration is achieved in the mode that a single-side coupler is turned over instead of synchronous turning detection data at two ends, and therefore calibration accuracy is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses one of them purpose is in order to provide a servo rotation base for shaft coupling centering, need to coil movable shaft coupling when having solved the shaft coupling calibration among the prior art for the technical problem of the centering calibration operation degree of difficulty. The utility model discloses a great deal of beneficial effect can be reached in the preferred embodiment, specifically see the following explanation.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model discloses a rotation base for shaft coupling centering, including mount pad and rotary platform, the mount pad is used for treating the both ends of calibration centering with the shaft coupling and is connected, and rotary platform is articulated with the mount pad, and rotary platform is used for the installation to be used for the centering instrument of shaft coupling calibration to it is rotatory to make rotary platform can drive the centering instrument.
According to the utility model relates to a further preferred technical scheme is provided with the magnet groove on the mount pad, and the magnet inslot is embedded to have magnet to make the mount pad can treat the both ends of calibration centering at the shaft coupling through magnet absorption.
According to the utility model relates to a further preferred technical scheme for the rotation base of shaft coupling centering still is including adjusting the seat, adjusts the one end and the mount pad swing joint of seat, and the other end of adjusting the seat is articulated with rotary platform to make rotary platform articulated with the mount pad through adjusting the seat.
According to the utility model relates to a further preferred technical scheme, adjust the seat and pass through the magnet adsorption with the mount pad and be connected.
According to the utility model relates to a further preferred technical scheme, adjust the seat and include revolving stage mount pad and parallel control spare, parallel control spare is connected with the one end that the revolving stage mount pad is close to the mount pad to the center of gyration that makes parallel control spare can adjust rotary platform is parallel with the center of gyration of shaft coupling.
According to the utility model relates to a further preferred technical scheme, parallel adjusting part still includes fixed plate and first adjusting screw, fixed plate and revolving stage mount pad fixed connection, and be provided with on the fixed plate with the screw of first adjusting screw looks adaptation, first adjusting screw passes the screw on the fixed plate and contradicts and/or support on the mount pad.
According to the utility model relates to a further preferred technical scheme, adjust the seat and still include concentric regulating part, parallel regulating part and/or revolving stage mount pad are embedded in concentric regulating part, and are provided with second adjusting screw on the concentric regulating part, and second adjusting screw passes concentric regulating part and supports and/or contradict on the lateral wall of parallel regulating part and/or revolving stage mount pad.
According to the utility model relates to a further preferred technical scheme is provided with the quad slit on the concentric regulation piece, and parallel regulation piece and/or the one end that the revolving stage mount pad is close to the mount pad set up to the square with concentric regulation piece looks adaptation, and the quad slit four sides all are provided with second adjusting screw.
According to the utility model relates to a further preferred technical scheme for the rotation base of shaft coupling centering still includes drive arrangement, and drive arrangement fixed mounting is on the revolving stage mount pad, and drive arrangement is connected with the rotary platform transmission to it is rotatory to make drive arrangement drive rotary platform.
According to the utility model relates to a further preferred technical scheme for the rotation base of shaft coupling centering still includes the centering appearance support, and the one end and the rotary platform of centering appearance support are connected, to the other end fixed mounting centering instrument of centering appearance support.
The utility model provides a rotation base for shaft coupling centering has following beneficial technological effect at least:
a rotation base for shaft coupling centering through setting up rotary platform to with the centering instrument installation on rotary platform, utilize rotary platform to articulate with the mount pad, make rotary platform can drive the centering instrument rotatory, and then simulate under the condition not to shaft coupling barring and replace being surveyed motor and water pump axle rotation action, in order to reach the purpose of using manpower sparingly. And moreover, the autorotation bases are arranged at the two ends to be centered of the coupler, and the rotating platforms at the two ends of the coupler synchronously rotate to simulate the rotation action of the motor to be measured and the water pump shaft, so that the centering instrument arranged on the rotating platform can obtain real error data, correct data can be quickly, efficiently and accurately obtained, and the overhauling and installing quality is improved.
Furthermore, the utility model discloses preferred technical scheme can also produce following technological effect:
the utility model relates to an optimal technical scheme sets up the magnet groove on the mount pad, and imbeds magnet at the magnet inslot for the mount pad passes through the mode connection of magnet absorption at the tip of shaft coupling, the installation and the dismantlement of the mount pad of not only being convenient for, and the position of the coarse adjustment mount pad of still being convenient for, so that the mount pad puts in the central point of shaft coupling terminal surface.
As the utility model discloses further preferred technical scheme adjusts the seat through further setting up, realizes the smart regulation of rotary platform mounted position to make rotary platform's the center of rotation axle coincide with the center of rotation axle of shaft coupling, and then make rotary platform can the true simulation be surveyed motor and water pump axle rotation, the rotation at true simulation shaft coupling both ends promptly.
As the utility model discloses further preferred technical scheme sets up drive arrangement on the revolving stage mount pad to utilize drive arrangement drive rotary platform, so that the rotation platform at shaft coupling antithetical couplet both ends can rotate in step, and then improve shaft coupling centering calibration efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a first schematic view of a spin base according to a preferred embodiment of the present invention;
FIG. 2 is a second schematic view of a spin base according to a preferred embodiment of the present invention;
FIG. 3 is a third schematic view of a spin base according to a preferred embodiment of the present invention;
FIG. 4 is a schematic illustration of a preferred embodiment of the present invention after the shaft coupling has been calibrated;
fig. 5 is a schematic view of a preferred embodiment of the present invention in a first state prior to alignment of the coupling;
fig. 6 is a schematic diagram of a second state of the coupling according to a preferred embodiment of the present invention before it is calibrated.
In the figure: 1-mounting a base; 11-a magnet slot; 2-a rotating platform; 3-centering the instrument; 4-an adjusting seat; 41-turntable mounting base; 42-a parallel adjustment; 421-a fixing plate; 422-first adjusting screw; 43-concentric adjustment; 431-a second adjusting screw; 5-a drive device; 6-centering instrument support; 7-coupling.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and 4 to 6, as a preferred embodiment, the rotation base for the shaft coupling centering includes a mounting base 1 and a rotary platform 2, the mounting base 1 is used for treating the both ends of the calibration centering with the shaft coupling 7 to be connected, the rotary platform 2 is hinged with the mounting base 1, and the rotary platform 2 is used for installing the centering instrument 3 for the shaft coupling calibration, so that the rotary platform 2 can drive the centering instrument 3 to rotate. Preferably, the centering device 3 is a laser centering device.
Rotation base when using, with rotary platform 2's centre of rotation axle and shaft coupling 7's centre of rotation axle coincidence, and then make rotary platform 2's rotation can simulate the rotation at 7 both ends of shaft coupling, simulate promptly and replace being surveyed motor and water pump axle rotation action, and then need not rotary shaft coupling 7's both ends when 7 calibrations of shaft coupling, need not the barring operation promptly, can greatly save the manpower when 7 calibrations of shaft coupling are to, especially reduce the degree of difficulty of 7 centering calibration operations of large-scale shaft coupling.
Referring to fig. 3, as a preferred embodiment of the present invention, a magnet slot 11 is provided on the mounting base 1, and the magnet slot 11 is embedded with a magnet, so that the mounting base 1 can be adsorbed on both ends of the coupler 7 to be centered through the magnet. Preferably, permanent magnets are embedded in the magnet slots 11.
Referring to fig. 1 and 2, the present invention further discloses a rotation base for shaft coupling centering, which comprises an adjusting seat 4, one end of the adjusting seat 4 is movably connected with the mounting seat 1, and the other end of the adjusting seat 4 is hinged to the rotating platform 2, so that the rotating platform 2 is hinged to the mounting seat 1 through the adjusting seat 4.
In the above preferred embodiment, the adjusting seat 4 is provided, so that the connecting position and/or angle of the rotating platform 2 and the mounting seat 1 is adjusted, the rotation central axes at two ends of the rotating platform 2 and the coupling 7 are slightly adjusted, the rotation central axes at two ends of the rotating platform 2 and the coupling 7 are overlapped, that is, the rotating platform 2 and the coupling 7 are coaxial.
In a preferred embodiment, the mounting seat 1 and the adjusting seat 4 are both made of aluminum alloy material. As a further preferred embodiment of the present invention, the adjusting seat 4 and the mounting seat 1 are provided with a magnet groove, and the magnet groove is embedded with a permanent magnet, so that the adjusting seat 4 and the mounting seat 1 are connected by magnet adsorption. As an alternative, the mounting seat 1 and the adjusting seat 4 are made of aluminum alloy, a magnet is embedded in the mounting seat 1, and an iron block is embedded in the adjusting seat 4, so that the magnet in the mounting seat 1 can adsorb the iron block in the adjusting seat 4 to fix the adjusting seat 4. As another practical alternative, a magnet is embedded in the mounting seat 1, and the adjusting seat 4 is made of a magnetic material, such as iron.
Above-mentioned preferred embodiment, adjust seat 4 and mount pad 1 and lead to the mode of magnet absorption to be connected fixedly, not only be convenient for install and/or dismantle and adjust seat 4, can also realize adjusting the fine setting of seat 4 and mount pad 1 hookup location. Preferably, the two ends of the mounting seat 1 and the coupling 7 and the two ends of the mounting seat 1 and the adjusting seat 4 are connected in a magnet adsorption mode, so that the magnet blocks embedded in the mounting seat 1 are fully utilized.
Referring to fig. 1 and 2, as a further preferred embodiment of the present invention, the adjusting base 4 includes a turntable mounting base 41 and a parallel adjusting member 42, and the parallel adjusting member 42 is connected to one end of the turntable mounting base 41 close to the mounting base 1, so that the parallel adjusting member 42 can adjust the rotation center axis of the rotating platform 2 to be parallel to the rotation center axis of the coupling 7.
Referring again to fig. 1 and 2, as a further preferred embodiment of the present invention, the parallel adjusting member 42 further includes a fixing plate 421 and a first adjusting screw 422, the fixing plate 421 is fixedly connected to the turntable mounting seat 41, and a screw hole adapted to the first adjusting screw 422 is provided on the fixing plate 421, and the first adjusting screw 422 passes through the screw hole on the fixing plate 421 and abuts against and/or is supported on the mounting seat 1.
Preferably, the fixing plate 421 is fixedly connected to one end of the turntable mounting base 41 close to the mounting base 1. Further preferably, four corners of the fixing plate 421 are provided with screw holes matched with the first adjusting screws 422, so that an operator can quickly adjust the heights of four sides of the fixing plate 421, and further, the rotation center axis of the rotating platform 2 is parallel to the rotation center axis of the coupling 7. During installation, an operator can adjust the direction of the rotation center axis of the rotating platform 2 by finely adjusting the heights of the four sides of the rotating platform 2 through adjusting the first adjusting screw 422 on the fixing plate 421. Further preferably, the first adjusting screw 422 is a screw.
Referring again to fig. 1 and 2, as a further preferred embodiment of the present invention, the adjusting base 4 further includes a concentric adjusting member 43, the parallel adjusting member 42 and/or the turntable mounting base 41 are embedded in the concentric adjusting member 43, and a second adjusting screw 431 is disposed on the concentric adjusting member 43, and the second adjusting screw 431 passes through the concentric adjusting member 43 and is supported and/or abutted on the side wall of the parallel adjusting member 42 and/or the turntable mounting base 41.
In the above preferred embodiment, the second adjusting screw 431 mounted on the concentric adjusting member 43 abuts against and/or is supported by the parallel adjusting member 42 and/or the turntable mounting seat 41, so that the parallel adjusting member 42 and/or the turntable mounting seat 41 can move on the end surface of the coupler 7 under the support of the second adjusting screw 431, and further, the rotary platform 2 is driven to move, so that the rotation center axis of the rotary platform 2 coincides with the rotation center axis of the two ends of the coupler 7.
Referring again to fig. 1 and 2, as a further preferred embodiment of the present invention, a square hole is provided on the concentric adjusting member 43, one end of the parallel adjusting member 42 and/or the turntable mounting base 41 close to the mounting base 1 is set to be square to match with the concentric adjusting member 43, and the four sides of the square hole are provided with the second adjusting screw 431.
Referring again to fig. 1 or 2, in the above preferred embodiment, the concentric adjusting member 43 is provided with a square hole, and the parallel adjusting member 42 and/or the turntable mounting base 41 are arranged in a direction matched with the square hole, so that the operator can adjust the movement of the rotary platform 2 by adjusting the second adjusting screw 431 in different directions.
As a further preferred embodiment of the present invention, the rotation base for centering the shaft coupling 7 further includes a driving device 5, the driving device 5 is fixedly mounted on the turntable mounting seat 41, and the driving device 5 is in transmission connection with the rotating platform 2, so that the driving device 5 can drive the rotating platform 2 to rotate.
Preferably, the driving device 5 and the rotating platform 2 can be directly connected or can be in transmission connection through a transmission mechanism. The preferred drive means 5 is a motor. Specifically, the driving device 5 may be a servo motor, a stepping motor, a DD servo motor direct-drive rotating platform 2, a rotating platform 2 with a servo motor or a stepping motor synchronous belt transmission mode, a turbine auxiliary rotating platform, a planet wheel speed reduction rotating platform, a harmonic speed reducer numerical control rotating platform, a split stick turbine speed reducer rotating platform, and the like. It should be noted that, in the above embodiments, only the motor forms are different, and a specific user may select different motors and linkage modes as needed, so that the motor drives the rotating platform 2 to rotate.
Referring to fig. 1 to 6, the utility model relates to a further preferred embodiment's rotation base for shaft coupling centering still includes centering instrument support 6, and centering instrument support 6's one end is connected with rotary platform 2, centering instrument support 6's other end fixed mounting centering instrument 3.
Preferably, one end of the centering instrument support 6 is provided with a connecting block matched with the rotating platform 2, and is connected with the rotating platform 2 in a positioning way through the connecting block. In particular, the centring instrument support 6 is fixed to the rotary platform 2 by means of bolts and/or screws. Further preferably, the other end of the centering instrument support 6 is fixedly connected with the centering instrument 3.
In the above preferred embodiment, the centering device 3 can rotate around the central rotation shaft of the rotating platform 2 by arranging the centering device bracket 6, and the operator can set the length of the centering device bracket 6 according to the requirement for couplings with different sizes. Preferably, centering instrument support 6 sets up to the telescopic link to make the operation personnel can adjust centering instrument support 6's length as required, in order to be used for different model shaft couplings.
Referring to fig. 1 to 6, the operation steps of the rotation base for coupling centering according to the present invention are as follows:
s1: mounting of self-rotating pedestals
An operator firstly adsorbs the mounting seat 1 to the end faces of two ends of the coupler 7 through magnets, roughly adjusts the position of the mounting seat 1 and enables the rotary platform 2 to be coaxial with the coupler 7 as much as possible. Further, a dial indicator is arranged on the rotary platform 2, meter printing self-checking is carried out on the end face and the circumferential face of the coupler through the dial indicator, and meanwhile, the first adjusting screw 422 and/or the second adjusting screw 431 are adjusted according to the detection result of the dial indicator so as to realize accurate superposition of the concentricity and the parallelism of the numerical control rotary table;
s2: adjusting and centering instrument
After the rotating platform 2 corrects the concentricity and the parallelism, the centering instrument 3 and the centering instrument support 6 are respectively installed on the rotating platform 2, and the centering instruments 3 on the rotating platforms 2 at the two ends of the coupler are oppositely arranged through the rotating coupler. Then, the driving device 5 is controlled through a computer, so that the rotating platforms 2 at the two ends of the coupler 7 are locked and switched into linkage control, namely, the rotating platforms 2 at the two ends of the coupler 7 are controlled to rotate in the same direction and synchronously, and further the rotation of the tested motor and the water pump shaft is simulated. Specifically, the operator may pulse the control computer to control the rotational speed of the rotary platform 2.
S3: error data is obtained, and coaxiality and parallelism error values at two ends of the coupler 7 are calculated
By controlling the rotating platform 2 to rotate by a certain angle and measuring the distance between the centering instruments 3 at the two ends of the coupler 7 at different angles, the centering instruments 3 can obtain a correct synchronous continuous coupler real physical data change, and therefore the coaxiality error numerical value and the adjustment numerical value between the tested motor and the water pump are calculated.
S4: adjusting coupler
The operation personnel adjust the position of shaft coupling both ends according to the adjustment numerical value that centering instrument 3 calculated, specifically, can be through jacking equipment all around or at the gasket below the shaft coupling both ends to improve the shaft coupling both ends axiality.
S5: repeating the above steps S3 and S4 until the coaxiality of the two ends of the coupler is in accordance with the relevant technical standard.
S6: the centering instrument 3 and the autorotation pedestal are disassembled.
The utility model provides a shaft coupling centering adjustment difficulty problem when power input output shaft coupling large interval appears such as super large-scale 500KW or even MW rank super large motor, generator, steam turbine, fan, oil refinery, iron and steel factory and super large-scale ocean cargo ship. Time is saved, labor intensity is reduced, efficiency is improved, and overhauling and mounting quality is improved. Specifically, because this problem of the unable synchronous barring of the big interval installation of super large-scale motor coupling and the inconvenient problem of beating the table, the action of laser centering appearance to synchronous barring requires very much, if the stable barring of can not be synchronized, accurate data just can't be detected out to laser centering appearance to lead to the testing result inaccurate. And the utility model discloses utilize high accuracy numerical control carousel to rotate the action when 2 simulation shaft couplings 7 barring of platform promptly, realized the true simulation of synchronous barring action to reach the purpose that reduces intensity of labour and improve the operating efficiency and overhaul installation quality.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a rotation base for shaft coupling centering, its characterized in that, includes mount pad (1) and rotary platform (2), mount pad (1) are used for treating the both ends of calibrating the centering with the shaft coupling and are connected, rotary platform (2) with mount pad (1) are articulated, just rotary platform (2) are used for the installation to be used for centering instrument (3) of shaft coupling calibration, so that rotary platform (2) can drive centering instrument (3) are rotatory.
2. The rotation base for shaft coupling centering according to claim 1, characterized in that a magnet slot (11) is arranged on the mounting base (1), and a magnet is embedded in the magnet slot (11), so that the mounting base (1) can be adsorbed at two ends of the shaft coupling centering to be calibrated through the magnet.
3. The autorotation pedestal for a shaft coupling centering according to claim 1 further comprising an adjusting seat (4), wherein one end of the adjusting seat (4) is movably connected with the mounting seat (1), and the other end of the adjusting seat (4) is hinged with the rotating platform (2), so that the rotating platform (2) is hinged with the mounting seat (1) through the adjusting seat (4).
4. The autorotation pedestal for a shaft coupling centering according to claim 3 characterized in that the adjusting seat (4) is connected with the mounting seat (1) by magnet adsorption.
5. The rotation base for shaft coupling centering according to claim 3, characterized in that the adjusting seat (4) comprises a turntable mounting seat (41) and a parallel adjusting member (42), and the parallel adjusting member (42) is connected with one end of the turntable mounting seat (41) close to the mounting seat (1) so that the parallel adjusting member (42) can adjust the rotation center axis of the rotating platform (2) to be parallel to the rotation center axis of the shaft coupling.
6. The rotation base for coupling centering according to claim 5, wherein the parallel adjusting member (42) further comprises a fixing plate (421) and a first adjusting screw (422), the fixing plate (421) is fixedly connected to the turntable mounting seat (41), a screw hole adapted to the first adjusting screw (422) is formed in the fixing plate (421), and the first adjusting screw (422) passes through the screw hole in the fixing plate (421) and abuts against and/or is supported on the mounting seat (1).
7. The autorotation pedestal for a shaft coupling centering according to claim 5, characterized in that the adjusting seat (4) further comprises a concentric adjusting member (43), the parallel adjusting member (42) and/or the turntable mounting seat (41) is embedded in the concentric adjusting member (43), and a second adjusting screw (431) is arranged on the concentric adjusting member (43), and the second adjusting screw (431) passes through the concentric adjusting member (43) and is supported and/or abutted on the side wall of the parallel adjusting member (42) and/or the turntable mounting seat (41).
8. The rotation base for the shaft coupling pair according to claim 7, wherein a square hole is formed on the concentric adjusting member (43), one end of the parallel adjusting member (42) and/or the turntable mounting seat (41) close to the mounting seat (1) is provided with a square shape matched with the concentric adjusting member (43), and the four sides of the square hole are provided with second adjusting screws (431).
9. The autorotation pedestal for a coupling centering according to claim 5 further comprising a driving device (5), wherein the driving device (5) is fixedly installed on the turntable installation seat (41), and the driving device (5) is in transmission connection with the rotating platform (2) so that the driving device (5) can drive the rotating platform (2) to rotate.
10. The autorotation pedestal for shaft coupling centering according to claim 1 further comprising a centering instrument support (6), wherein one end of the centering instrument support (6) is connected with the rotating platform (2), and the other end of the centering instrument support (6) is fixedly provided with the centering instrument (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020752637.7U CN212705370U (en) | 2020-05-09 | 2020-05-09 | Self-rotating base for coupling centering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020752637.7U CN212705370U (en) | 2020-05-09 | 2020-05-09 | Self-rotating base for coupling centering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212705370U true CN212705370U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020752637.7U Active CN212705370U (en) | 2020-05-09 | 2020-05-09 | Self-rotating base for coupling centering |
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| Country | Link |
|---|---|
| CN (1) | CN212705370U (en) |
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2020
- 2020-05-09 CN CN202020752637.7U patent/CN212705370U/en active Active
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