CN212844165U - Vertical dynamic balance tool and dynamic balance mounting structure of double-twisting machine rotating shaft system device - Google Patents
Vertical dynamic balance tool and dynamic balance mounting structure of double-twisting machine rotating shaft system device Download PDFInfo
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- CN212844165U CN212844165U CN202021841152.1U CN202021841152U CN212844165U CN 212844165 U CN212844165 U CN 212844165U CN 202021841152 U CN202021841152 U CN 202021841152U CN 212844165 U CN212844165 U CN 212844165U
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Abstract
The utility model discloses a vertical dynamic balance tool and a dynamic balance mounting structure of a double-twisting machine rotating shafting device, wherein the vertical dynamic balance tool comprises a motor rack, a variable frequency motor and a device rack; the variable frequency motor is vertically arranged on the upper part of the motor rack, and a motor belt wheel is arranged on an output shaft head of the variable frequency motor; the device rack is provided with a supporting platform, and the supporting platform is provided with a device fixing seat which is used for being connected with a bearing seat mounting flange of the shafting device; the dynamic balance tool further comprises a synchronous belt used for connecting the motor belt wheel with a synchronous belt wheel vertically installed on the device fixing seat. The utility model discloses a synchronous belt connects shafting device's synchronous pulley, has guaranteed that rotational speed and motor are synchronous, directly borrows the current synchronous pulley of shafting device simultaneously, need not additionally to install the band pulley to action balance behind the mountable flywheel dish, thereby dynamic balance when being close operating condition as far as possible has improved the precision that dynamic balance rectified.
Description
Technical Field
The utility model relates to a dynamic balance frock especially indicates a vertical dynamic balance frock and dynamic balance mounting structure of two twisters rotary shaft system device.
Background
When the double-twisting machine is used for twisting production, the working rotating speed of a rotating shaft system is up to 5500rpm, the equipment is continuously operated for 24 hours every day, the equipment is not stopped by people, and the working condition is severe. In order to prolong the service life of the rotating shaft system, the shaft system device must be dynamically balanced when the double-twisting machine shaft system device is assembled.
Chinese patent document CN209014200U discloses a spindle dynamic balance detection device, which comprises a frame, a motor, a transmission mechanism, an installation frame, a driving shaft, a vibration probe and a dynamic balance instrument; the main shaft that awaits measuring is connected with the bearing frame through the bearing, and the bearing frame can be dismantled with the mounting bracket and be connected, and the one end of main shaft that awaits measuring can be dismantled and be connected with the connecting seat, and the connecting seat can be dismantled with the drive shaft and be connected. The process of detecting the dynamic balance of the main shaft by the main shaft dynamic balance detection device is as follows: the bearing seat connected with the main shaft to be detected is installed on the installation frame, the connecting seat is connected with the driving shaft, the motor drives the driving shaft to rotate through the transmission mechanism under the working state, the driving shaft drives the main shaft to be detected to rotate through the connecting seat, and then the main shaft to be detected is detected and corrected through the sensor and the dynamic balancing instrument. The main problems are as follows: 1) a driving shaft, a connecting seat and a driven wheel are additionally arranged for dynamic balance, and the connecting position of the driving shaft, the connecting seat and the driven wheel is arranged at the opposite end of a main shaft synchronous belt wheel, so that the deviation of the rotation condition of the main shaft and the actual operation is large, and an additional correction error is increased; 2) the main shaft can only be subjected to dynamic balance independently, the flywheel disc cannot be installed, and dynamic balance correction cannot be carried out together with the flywheel disc; 3) when the transmission mechanism adopts belt transmission, the slipping phenomenon may exist, and the rotating speed of the main shaft cannot be accurately controlled; 4) the main shaft is installed from top to bottom and needs to be fixed with the driving shaft, so that the operation is complex, and time and labor are wasted.
Disclosure of Invention
An object of the utility model is to provide a vertical dynamic balance frock and dynamic balance mounting structure of two twisters rotation shafting device that can improve dynamic balance correction effect.
In order to achieve the purpose, the utility model relates to a vertical dynamic balance tool of a double-twisting machine rotating shafting device, which comprises a motor rack, a variable frequency motor and a device rack; the variable frequency motor is vertically arranged on the upper part of the motor rack, and a motor belt wheel is arranged on an output shaft head of the variable frequency motor; the device rack is provided with a supporting platform, and the supporting platform is provided with a device fixing seat which is used for being connected with a bearing seat mounting flange of the shafting device; the dynamic balance tool further comprises a synchronous belt used for connecting the motor belt wheel with a synchronous belt wheel vertically installed on the device fixing seat.
Preferably, the device fixing seat comprises a device fixing flange for fixedly connecting the bearing seat mounting flange, a platform fixing flange fixedly connected with the supporting platform, and a flange connecting cylinder arranged between the two flanges.
Preferably, the device fixing flange, the platform fixing flange and the flange connecting cylinder are all semicircular, and a shafting device mounting port through which a shafting device can transversely pass is formed in the semicircular opening side of the device fixing flange of the supporting platform. According to the scheme, the shafting device is installed from the side surface, the device fixing seat and the flywheel disc do not need to be detached during installation, the installation of the shafting device is greatly simplified, and the manpower and the installation and disassembly cost are saved.
Preferably, the outer side of the flange connecting cylinder is provided with a reinforcing rib plate.
Preferably, the motor rack comprises a base and a vertical support, the vertical support is fixed on the base, and the variable frequency motor is vertically fixed on the side of the vertical support.
Preferably, the vertical bracket adopts a double-triangular bracket.
Preferably, the last protective door cover that plays the safety protection effect that is provided with of supporting platform, the protective door cover is provided with the belt via hole that supplies synchronous belt to pass through in the one side that is close to the motor rack.
The utility model further provides a dynamic balance mounting structure of the double-twisting machine rotating shafting device, which comprises a shafting device and the vertical dynamic balance tool; the shafting device comprises a main shaft assembly, an on-shaft part and a bearing seat; the main shaft assembly comprises a main shaft and a flywheel disc assembly; the flywheel disc assembly is fixed on a shaft head at one end of the main shaft; a synchronous belt pulley is sleeved on a shaft head at the other end of the main shaft; a bearing seat mounting flange is arranged on the bearing seat; the synchronous belt wheel of the shafting device faces upwards and is fixed on the device fixing seat through a bearing seat mounting flange, and after the installation and the fixation, the main shaft of the shafting device is in the vertical direction; and a synchronous belt wheel of the shafting device is connected with a motor belt wheel through a synchronous belt.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1) by adopting the vertical dynamic balance design, the gravity center of the shafting device is basically vertically coincided with the rotation axis, and the phenomenon that the bearing clearance is influenced by the gravity action when the angular contact bearing of the shafting device and the pressing disc spring are transversely placed to cause the axial line to deviate from the theoretical center to cause the force couple imbalance is avoided.
2) The dynamic balance tool is connected with the synchronous belt wheel of the shafting device through the synchronous belt, so that the synchronization of the rotating speed and the motor is ensured, the existing synchronous belt wheel of the shafting device is directly used, the additional belt wheel is not needed, and the flywheel disc can be installed to realize dynamic balance, so that the working state is as close as possible, and the accuracy of dynamic balance correction is improved.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a vertical dynamic balance tool (including a shafting device) designed by the present invention.
Fig. 2 and 3 are schematic front and top views of the vertical dynamic balance tool in fig. 1, respectively.
Fig. 4 is a schematic perspective view of the installation rack of fig. 1 (including shafting installation and with the protective door cover removed).
Fig. 5 is a schematic perspective view of the fixing base of the device in fig. 4.
Fig. 6 is a schematic structural view (partially cut along an axis to show an internal structure) of the rotary shafting apparatus of the double twister installed in fig. 1.
Wherein: the shaft system comprises a shaft system device 100, a main shaft assembly 200, a main shaft 210, a flywheel disc assembly 250, an on-shaft part 300, an angular contact ball bearing 310, a deep groove ball bearing 320, a synchronous pulley 370, a bearing seat 400, a bearing seat mounting flange 410, a motor rack 510, a base 511, a vertical support 512, a variable frequency motor 520, a device rack 530, a support platform 531, a device fixing seat 532, a device fixing flange 533, a platform fixing flange 534, a flange connecting cylinder 535, a reinforcing rib plate 536, a shaft system device mounting opening 537, a motor pulley 540, a synchronous belt 550, a protective door cover 560, a belt through hole 561 and bolts 600.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 1-5, the utility model discloses a vertical dynamic balance frock of two twisters rotary shaft system device, including motor rack 510, inverter motor 520, device rack 530 and synchronous belt 550. Wherein:
the motor stand 510 includes a base 511 and an upright bracket 512, wherein the upright bracket 512 is a double-triangle bracket, and the lower portion of the upright bracket 512 is fixed on the base 511. The variable frequency motor 520 is vertically fixed on the side of the vertical bracket 512, and a motor belt wheel 540 is arranged on the output shaft head of the variable frequency motor.
A supporting platform 531 is arranged on the device rack 530, and a device fixing seat 532 is arranged on the supporting platform 531. The fixture mount 532 includes a fixture mount flange 533 for fixedly coupling to the bearing housing mounting flange 410, a platform mount flange 534 fixedly coupled to the support platform 531, and a flange connector 535 fixedly coupled between the two flanges. The device fixing flange 533, the platform fixing flange 534, and the flange connecting cylinder 535 are all semicircular, and the support platform 531 is provided with a shaft system device mounting port 537 at the semicircular opening side of the device fixing flange 533, through which the shaft system device 100 can transversely pass. The outboard side of the flange connector 535 is provided with a stiffener 536.
The supporting platform 531 is further provided with a protective door cover 560 for safety protection, and the protective door cover 560 is provided with a belt through hole 561 for passing the synchronous belt 550 at one side close to the motor rack 510.
The embodiment also provides a dynamic balance mounting structure of the double-twister rotating shafting device, which comprises the shafting device 100 and the vertical dynamic balance tool. Wherein:
as shown in fig. 6, the shafting apparatus 100 includes a main shaft assembly 200, an on-shaft component 300, and a bearing housing 400. The spindle assembly 200 includes a spindle 210 and a flywheel disc assembly 250. The flywheel disc assembly 250 is fixed on the shaft head at one end of the main shaft 210, and the shaft head at the other end of the main shaft 210 is sleeved with a synchronous pulley 370 through a key connection. The shaft member 300 includes three angular contact ball bearings 310 and a deep groove ball bearing 320, and the other parts not related to the present embodiment are not mentioned. Bearing housing 400 has a bearing housing mounting flange 410 disposed thereon.
As shown in fig. 1 to 4, the synchronous pulley 370 of the shafting device 100 is upward, and the whole is translated to the device fixing flange 533 from the opening of the supporting platform 531, and fixed to the device fixing flange 533 by the bearing seat mounting flange 410 and the bolt 600. After being installed and fixed, the main shaft 210 of the shaft system 100 is in the vertical direction, and the synchronous pulley 370 is connected with the motor pulley 540 through the synchronous belt 550.
The vertical dynamic balance tool is matched with a dynamic balancer and a corresponding sensor, can be used for performing dynamic balance correction on a shafting device, and comprises the following specific steps:
a) the rotating speed of the shafting device 100 is increased from 0, and the speed w of the test vibration intensity larger than 3mm/s0E.g. w0At 2000rpm, the vibration intensity is greater than 3mm/s, and then the trimming is performed at 2000 rpm.
b) Carrying out balancing: at a speed w0And then selecting a test weight block with proper quality and installing the test weight block to the A surface balancing position.
c) At a speed w0Rotating at 2000rpm, inputting A-plane counterweight mass into the dynamic balancing instrument, and automatically calculatingThe coefficient is influenced on the B surface.
d) And taking down the trial weight of the surface A, selecting a trial weight block with proper quality, and applying the trial weight block on the surface B which is in the same phase with the surface A.
e) At a speed w0And rotating the lower part and inputting the mass of the counterweight on the B surface into the dynamic balancing instrument, and automatically calculating the influence coefficient on the A surface by the dynamic balancing instrument.
f) And taking the test weight away, and automatically calculating the mass and the phase applied to each surface by the dynamic balancing instrument.
g) And decomposing the unbalance vector by the dynamic balancing instrument to obtain the mass needing to be balanced under four phases or eight phases.
h) After the balance weight is applied, whether the vibration is more than 3mm/s or not is judged, and if the vibration intensity is more than 3mm/s, the rotating speed w is0C, adjusting the balance weight downwards, repeating the steps b) to g), or increasing the rotating speed to determine the next rotating speed w with the vibration intensity larger than 3mm/stRepetition at a rotational speed wtRepeating the steps b) to g) until the vibration intensity is less than 3mm/s at the rotating speed of 0-4500 rpm. Since the mass and phase calculated by the instrument obtain 4 and 8 components, the trim mass is not as same as the calculated mass, and the operation is repeated for many times.
Claims (8)
1. The utility model provides a vertical dynamic balance frock of two twisters rotating shaft system device which characterized in that:
comprises a motor rack (510), a variable frequency motor (520) and a device rack (530);
the variable frequency motor (520) is vertically arranged on the upper part of the motor rack (510), and a motor belt wheel (540) is arranged on an output shaft head of the variable frequency motor;
a supporting platform (531) is arranged on the device rack (530), and a device fixing seat (532) used for being connected with a bearing seat mounting flange (410) of the shafting device (100) is arranged on the supporting platform (531);
the dynamic balance tool further comprises a synchronous belt (550) used for connecting the motor belt wheel (540) with the synchronous belt wheel (370) vertically installed on the device fixing seat (532).
2. The vertical dynamic balance tool according to claim 1, characterized in that: the device fixing seat (532) comprises a device fixing flange (533) for fixing and connecting the bearing seat mounting flange (410), a platform fixing flange (534) fixedly connected with the supporting platform (531), and a flange connecting cylinder (535) arranged between the two flanges.
3. The vertical dynamic balance tool according to claim 2, characterized in that: the device fixing flange (533), the platform fixing flange (534) and the flange connecting cylinder (535) are all semicircular, and a shaft system device mounting port (537) through which a shaft system device (100) can transversely pass is formed in the semicircular opening side of the device fixing flange (533) of the supporting platform (531).
4. The vertical dynamic balance tool according to claim 2, characterized in that: and a reinforcing rib plate (536) is arranged on the outer side of the flange connecting cylinder (535).
5. The vertical dynamic balance tool according to any one of claims 1 to 4, characterized in that: the motor rack (510) comprises a base (511) and a vertical support (512), the vertical support (512) is fixed on the base (511), and the variable frequency motor (520) is vertically fixed on the side of the vertical support (512).
6. The vertical dynamic balance tool according to claim 5, characterized in that: the vertical support (512) adopts a double-triangular support.
7. The vertical dynamic balance tool according to any one of claims 1 to 4, characterized in that: the supporting platform (531) is provided with a protective door cover (560) with a safety protection function, and one side of the protective door cover (560) close to the motor rack (510) is provided with a belt through hole (561) for the synchronous belt (550) to pass through.
8. The utility model provides a two twister rotating shaft system device's dynamic balance mounting structure which characterized in that: the vertical dynamic balance tool comprises a shafting device (100) and the vertical dynamic balance tool set forth in any one of claims 1-7;
the shafting device (100) comprises a main shaft assembly (200), an on-shaft part (300) and a bearing seat (400); the main shaft assembly (200) comprises a main shaft (210) and a flywheel disc assembly (250); the flywheel disc assembly (250) is fixed on a shaft head at one end of the main shaft (210); a synchronous belt wheel (370) is sleeved on the shaft head at the other end of the main shaft (210); a bearing seat mounting flange (410) is arranged on the bearing seat (400);
the synchronous belt wheel (370) of the shafting device (100) faces upwards and is fixed on a device fixing seat (532) through a bearing seat mounting flange (410), and after the installation and the fixation, a main shaft (210) of the shafting device (100) is in a vertical direction; the synchronous belt wheel (370) of the shafting device (100) is connected with the motor belt wheel (540) through a synchronous belt (550).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841152.1U CN212844165U (en) | 2020-08-28 | 2020-08-28 | Vertical dynamic balance tool and dynamic balance mounting structure of double-twisting machine rotating shaft system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841152.1U CN212844165U (en) | 2020-08-28 | 2020-08-28 | Vertical dynamic balance tool and dynamic balance mounting structure of double-twisting machine rotating shaft system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212844165U true CN212844165U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021841152.1U Active CN212844165U (en) | 2020-08-28 | 2020-08-28 | Vertical dynamic balance tool and dynamic balance mounting structure of double-twisting machine rotating shaft system device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212844165U (en) |
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2020
- 2020-08-28 CN CN202021841152.1U patent/CN212844165U/en active Active
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