CN211014335U - Centrifuge rotational speed testing arrangement - Google Patents
Centrifuge rotational speed testing arrangement Download PDFInfo
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- CN211014335U CN211014335U CN201922156904.4U CN201922156904U CN211014335U CN 211014335 U CN211014335 U CN 211014335U CN 201922156904 U CN201922156904 U CN 201922156904U CN 211014335 U CN211014335 U CN 211014335U
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Abstract
The utility model discloses a centrifuge rotating speed testing device, which comprises a vibration platform, a centrifuge turntable, a balancing weight, a clamping seat, a screw rod, a supporting leg, a shock pad, a vibration sensor and a vibration monitor, wherein a rotating handle can push a clamping block to move towards the center of the vibration platform through the screw rod and the clamping seat in threaded fit, the centrifuge arranged at the center of the top surface of the vibration platform is fixed, a balancing weight is put in the rotary disc of the centrifuge, the vibration amplitude of the centrifuge during working is improved by the centrifugal force generated by the balancing weight, and shields the vibration generated when the internal driving motor works, so as to facilitate the detection, the vibration sensor is arranged at the center of the bottom surface of the vibration platform, because the centrifugal force action of the centrifuge rotating disc in the centrifuge drives the centrifuge to vibrate, the rotating speed of the centrifuge rotating disc can be calculated out through the vibration frequency detected by the vibration sensor through the vibration monitor.
Description
Technical Field
The utility model relates to a measurement detection device field specifically is a centrifuge rotational speed testing arrangement.
Background
The existing centrifugal machines in the market can be divided into two categories according to whether the observation holes exist, namely the centrifugal machine with the observation holes and the centrifugal machine without the observation holes. At present, the centrifuge with an observation hole can adopt the existing device to measure and detect the rotating speed. However, for the centrifuge without the observation hole, because the centrifuge is provided with the self-locking protection device, the centrifuge cannot be operated under the opening state of the cover of the centrifuge, and then the centrifuge without the observation hole can not perform safe and effective measurement detection, and the shell made of the metal material of the centrifuge can also shield electromagnetic signals, so that the rotating speed can not be detected through the hall effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a centrifuge rotational speed testing arrangement to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a centrifugal machine rotating speed testing device comprises a vibrating platform, a centrifugal machine rotating disc, balancing weights, clamping seats, a screw rod, supporting legs, a shock pad, a vibration sensor and a vibration monitor, wherein the vibrating platform is a square platform, four supporting legs are arranged at four top corners of the bottom surface of the square platform, the clamping seats are fixedly connected to the left side and the right side of the top surface of the vibrating platform, each clamping seat is of a cuboid structure, a circular through hole is formed in the side surface of each clamping seat, internal threads are formed in the inner wall of each through hole, the screw rod is installed in each through hole of each clamping seat in a meshed mode through threads, the outer wall of each screw rod is provided with a round rod with external threads, the outer end of each screw rod is fixedly connected with a rotating handle, a cylindrical clamping block is fixedly connected to the inner end of each rotating handle;
the centrifugal machine is characterized in that a centrifugal machine rotating disc is arranged in the centrifugal machine, a rotating shaft at the bottom of the centrifugal machine rotating disc is connected with an output shaft of a driving motor in the centrifugal machine, the centrifugal machine rotating disc can be driven to rotate through the driving motor, a mixture placed in the centrifugal machine rotating disc is separated through centrifugal force, a plurality of mixture placing grooves are arrayed on the centrifugal machine rotating disc, a balancing weight is placed in one of the placing grooves, the balancing weight can improve the centrifugal force of the centrifugal machine rotating disc during rotation, and the vibration amplitude is improved;
the vibration monitoring instrument is used for calculating the rotating speed of the centrifuge turntable by the vibration frequency detected by the vibration sensor;
as a further aspect of the present invention: the shock absorption pads are arranged at the tops of the support legs and made of hard rubber, so that the impact force of the vibration platform on the ground can be buffered through deformation, and the noise is reduced;
as a further aspect of the present invention: the vibration sensor and the vibration monitor adopt a DH-1 vibration acceleration sensor and a KZ-2C vibration monitor.
Compared with the prior art, the beneficial effects of the utility model are that: the rotation handle can promote the clamp splice through the screw rod and the screw-thread fit of holder and move towards vibration platform's center, it is fixed to place the centrifuge at vibration platform's top surface center, put into the balancing weight in the centrifuge carousel, the centrifugal force that produces through the balancing weight improves the vibration range of centrifuge during operation, and shield the vibration that inside driving motor during operation produced, the convenient detection, vibration platform's bottom surface center is equipped with vibration sensor, because the centrifugal force effect of the centrifuge carousel in the centrifuge drives the centrifuge vibration, can calculate the rotational speed of centrifuge carousel through the vibration frequency that vibration monitor detected vibration sensor.
Drawings
Fig. 1 is a schematic structural diagram of a centrifuge rotation speed testing device.
In the figure: vibration platform 1, centrifuge 2, centrifuge carousel 3, balancing weight 4, holder 5, screw rod 6, stabilizer blade 7, shock pad 8, vibration sensor 9, vibration monitor 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a centrifuge rotation speed testing apparatus includes a vibration platform 1, a centrifuge 2, a centrifuge turntable 3, a balancing weight 4, a holder 5, a screw rod 6, support legs 7, a shock pad 8, a vibration sensor 9, and a vibration monitor 10, where the vibration platform 1 is a square platform having four support legs 7 at four corners of a bottom surface, the holder 5 is fixedly connected to the left and right sides of the top surface of the vibration platform 1, the holder 5 is a rectangular structure having a circular through hole on a side surface, an inner wall of the through hole is provided with an internal thread, the screw rod 6 is installed in the through hole of the holder 5 through thread engagement, the screw rod 6 is a round rod having an external thread on an outer wall, an outer end of the screw rod 6 is fixedly connected with a rotating handle, an inner end of the rotating handle is fixedly connected with a cylindrical clamping block, the rotating handle can push the clamping block to move toward, fixing a centrifuge 2 placed at the center of the top surface of the vibration platform 1;
a centrifuge turntable 3 is arranged in the centrifuge 2, a rotating shaft at the bottom of the centrifuge turntable 3 is connected with an output shaft of a driving motor in the centrifuge 2, the centrifuge turntable 3 can be driven to rotate by the driving motor, a mixture placed in the centrifuge turntable 3 is separated by centrifugal force, a plurality of mixture placing grooves are formed in the centrifuge turntable 3 in an array mode, a balancing weight 4 is placed in one of the placing grooves, and the balancing weight 4 can improve the centrifugal force of the centrifuge turntable 3 during rotation and improve the vibration amplitude;
the vibration monitoring device is characterized in that a vibration sensor 9 is fixedly connected to the center of the bottom surface of the vibration platform 1, the vibration sensor 9 is connected with a vibration monitoring instrument 10 through a lead, the centrifugal machine 2 is driven to vibrate under the action of centrifugal force of the centrifugal machine turntable 3 in the centrifugal machine 2, and the vibration frequency detected by the vibration sensor 9 can be calculated through the vibration monitoring instrument 10 to obtain the rotating speed of the centrifugal machine turntable 3;
the shock absorption pads 8 are arranged at the tops of the support legs 7, the shock absorption pads 8 are made of hard rubber, impact force of vibration of the vibration platform 1 on the ground can be buffered through deformation, and noise is reduced;
the vibration sensor 9 and the vibration monitor 10 adopt a DH-1 vibration acceleration sensor and a KZ-2C vibration monitor.
The utility model discloses a theory of operation is: the rotation handle can promote the clamp splice through the screw rod 6 and the screw-thread fit of holder 5 and move towards the center of vibration platform 1, will place centrifuge 2 at the top surface center of vibration platform 1 fixed, put into balancing weight 4 in centrifuge carousel 3, the centrifugal force that produces through balancing weight 4 improves the vibration range of centrifuge 2 during operation, and shield the vibration that inside driving motor during operation produced, convenient the detection, the bottom surface center of vibration platform 1 is equipped with vibration sensor 9, because the centrifugal force of centrifuge carousel 3 in centrifuge 2 acts on the vibration of drive centrifuge 2, can calculate the rotational speed of centrifuge carousel 3 with the vibration frequency that vibration sensor 9 detected through vibration monitor 10.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (3)
1. A centrifuge rotation speed testing device comprises a vibration platform, a centrifuge turntable, a balancing weight, clamping seats, a screw rod, supporting legs, a shock pad, a vibration sensor and a vibration monitor, and is characterized in that the vibration platform is a square platform with four supporting legs arranged at four top corners of the bottom surface, the left side and the right side of the top surface of the vibration platform are fixedly connected with the clamping seats, each clamping seat is of a cuboid structure with a circular through hole on the side surface, internal threads are arranged on the inner wall of each through hole, the screw rod is installed in the through hole of each clamping seat in a threaded engagement mode, the screw rod is a round rod with external threads on the outer wall, a rotating handle is fixedly connected to the outer end of each screw rod, a cylindrical clamping block is fixedly;
a centrifuge turntable is arranged in the centrifuge, a rotating shaft at the bottom of the centrifuge turntable is connected with an output shaft of a driving motor in the centrifuge, a plurality of mixture placing grooves are arranged on the centrifuge turntable in an array manner, and a balancing weight is placed in one of the placing grooves;
the bottom surface center fixedly connected with vibration sensor of vibration platform, vibration sensor passes through the wire and is connected with the vibration monitor.
2. The centrifuge rotation speed testing device of claim 1, wherein a shock pad is arranged on the top of the supporting leg, and the shock pad is made of hard rubber.
3. The centrifuge rotation speed testing device of claim 1, wherein the vibration sensor and the vibration monitor are a DH-1 vibration acceleration sensor and a KZ-2C vibration monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156904.4U CN211014335U (en) | 2019-12-05 | 2019-12-05 | Centrifuge rotational speed testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156904.4U CN211014335U (en) | 2019-12-05 | 2019-12-05 | Centrifuge rotational speed testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211014335U true CN211014335U (en) | 2020-07-14 |
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ID=71469104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922156904.4U Active CN211014335U (en) | 2019-12-05 | 2019-12-05 | Centrifuge rotational speed testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211014335U (en) |
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2019
- 2019-12-05 CN CN201922156904.4U patent/CN211014335U/en active Active
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