Infrared measuring device for detecting rotating speed accuracy of centrifugal machine

Abstract

The utility model discloses an infrared measuring device for detecting the rotating speed accuracy of a centrifugal machine, which belongs to the field of centrifugal machine detection, and is characterized in that a second reflecting patch is taken down from the bottom end of a second infrared transmitting and receiving component and is attached to the axis of a centrifugal machine main body; when the centrifugal machine body rotates, the second infrared emitting and receiving component is started, the centrifugal machine body and the second infrared emitting and receiving component emit infrared rays and receive the infrared rays reflected by the second reflecting patch, and when the centrifugal machine body rotates, the second infrared emitting and receiving component can stably receive the infrared rays reflected by the second reflecting patch, and the centrifugal machine body does not rotate. If the first infrared transmitting and receiving component receives infrared reflected by the first reflecting patch stably, the axis of the centrifugal machine main body is stable, and if the second infrared transmitting and receiving component receives infrared reflected by the second reflecting patch unstably, the axis of the centrifugal machine main body is unstable, so that the accuracy of data detected by the current rotating speed detection assembly on the centrifugal machine main body can be judged.

Description

Technical Field

[0001] The utility model relates to the field of centrifuge detection, and more specifically, to an infrared measuring device for detecting the rotational speed accuracy of a centrifuge. Background Art

[0002] The infrared rays emitted by an infrared sensor have the characteristics of strong directivity and being not easily interfered by space electromagnetic waves. Therefore, they can be used to measure the rotational speed of an object. In the prior art, when detecting the rotational speed of a medical centrifuge, laboratory personnel hold an infrared sensor to detect the rotational speed of the centrifuge, and determine the indication error of the rotational speed of the centrifuge based on the rotational speed of the centrifuge displayed on the display screen of the infrared sensor and the set rotational speed of the centrifuge, so as to improve quality control and reduce the experimental data error caused by the equipment. Its disadvantage is that holding the infrared sensor itself may generate operation errors, and the reliability of its detection results is low.

[0003] Chinese Patent Application No.: CN202020741120.8 provides an infrared measuring device for detecting the rotational speed accuracy of a centrifuge. This solution measures the number of rotations of the centrifuge through the cooperation of a transmitting tube and a receiving tube with reflection strips and absorption strips on a rotating disk, and calculates the rotational speed of the centrifuge through a single-chip microcomputer equipped with a timer.

[0004] However, when detecting the rotational speed of a centrifuge, it is not convenient to detect the axis of the centrifuge. If the axis of the centrifuge is not precise or stable enough, it will affect its rotational stability, and when detecting the rotational speed of the centrifuge subsequently, it will affect the accuracy of the rotational speed detection of the centrifuge. Therefore, an infrared measuring device for detecting the rotational speed accuracy of a centrifuge is proposed for the above problems. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present utility model is to provide an infrared measuring device for detecting the rotational speed accuracy of a centrifuge. By removing the second reflection patch from the bottom end of the second infrared transmitting and receiving component and attaching it to the axis of the centrifuge main body, then, turning on the second infrared transmitting and receiving component and the centrifuge main body, the second infrared transmitting and receiving component emits infrared and receives the infrared reflected back through the second reflection patch. When the centrifuge main body rotates, if the second infrared transmitting and receiving component can stably receive the infrared reflected back by the second reflection patch, then the axis of the centrifuge main body is stable. If the second infrared transmitting and receiving component cannot stably receive the infrared reflected back by the second reflection patch, then the axis of the centrifuge main body is unstable, thereby enabling the judgment of the accuracy of the data detected by the current rotational speed detection component for the centrifuge main body.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0007] An infrared measuring device for detecting the rotational speed accuracy of a centrifuge, comprising a bracket, a rotational speed detection component is installed at the top end of the bracket, an axis detection component is installed at the front end of the rotational speed detection component, a centrifuge main body is installed inside the bracket, and the centrifuge main body is adapted to the axis detection component; the axis detection component includes a fixed seat, the fixed seat is installed at the front end of the rotational speed detection component, a second infrared emission and reception component is installed at the bottom end of the fixed seat, and a second reflection patch is magnetically attracted to the centrifuge main body below the bottom end of the second infrared emission and reception component, and the second reflection patch is adapted to the axis of the centrifuge main body;

[0008] The rotational speed detection component is supported by the bracket, and the axis detection component is fixed by the rotational speed detection component. At the same time, the centrifuge main body is placed inside the bracket, and the rotational speed detection component and the axis detection component detect the rotational speed and axis of the centrifuge main body. Among them, the second reflection patch is removed from the bottom end of the second infrared emission and reception component and pasted at the axis of the centrifuge main body. Then, the second infrared emission and reception component and the centrifuge main body are turned on. The second infrared emission and reception component emits infrared and receives the infrared reflected back through the second reflection patch. When the centrifuge main body rotates, if the second infrared emission and reception component can stably receive the infrared reflected back by the second reflection patch, the axis of the centrifuge main body is stable. If the second infrared emission and reception component cannot stably receive the infrared reflected back by the second reflection patch, the axis of the centrifuge main body is unstable. Thus, the accuracy of the data detected by the current rotational speed detection component for the centrifuge main body can be judged. Moreover, detecting the stability of the axis can also be used as a detection of the separation effect. If the axis is unstable, the separation effect is not uniform enough, which will affect the quality of the substance. This solution can be used for multiple purposes, has a wider applicability. After the detection can be completed subsequently, the second reflection patch can be removed and magnetically attracted to the second infrared emission and reception component, which is convenient for subsequent secondary use and plays a role in preventing loss.

[0009] Refer to Figures 3 - 5 As shown, the rotational speed detection component includes a housing, a motor is fixedly connected inside the housing, a worm is fixedly connected to the transmission end of the motor, and the worm is rotatably connected to the housing.

[0010] The rotational speed detection component further includes a horizontal shaft, the horizontal shaft is installed at the top end of the bracket and fixedly connected to the fixed seat. Inside the housing, the horizontal shaft is rotatably connected to the housing. A worm gear is fixedly connected to the outer end of the horizontal shaft, the worm gear meshes with the worm, and a gear is fixedly connected to the outer end of the horizontal shaft and on one side of the worm gear.

[0011] The rotational speed detection component further includes a rack, the rack is installed at the bottom end of the housing, the rack is slidably connected to the housing, and the rack meshes with the gear.

[0012] The bottom end of the rack is fixedly connected with a first infrared transmitting and receiving component. Below the bottom end of the first infrared transmitting and receiving component and magnetically attracted to the centrifuge main body is a first reflection patch, and the first reflection patch is adapted to the rotating disk of the centrifuge main body;

[0013] By attaching the first reflection patch to a suitable position on the rotating disk of the centrifuge main body, preferably to a position closer to the outer periphery of the rotating disk of the centrifuge main body, then starting the motor, the motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the horizontal shaft to rotate, the horizontal shaft drives the gear to rotate, the gear drives the rack to rotate, and the rack drives the first infrared transmitting and receiving component to move, so that the first infrared transmitting and receiving component can be aligned with the first reflection patch, facilitating the adjustment of the position of the first infrared transmitting and receiving component for centrifuge main bodies of different sizes. It is convenient for the first infrared transmitting and receiving component to emit infrared and receive the infrared reflected back through the first reflection patch later. The closer to the outer periphery, the higher the detection accuracy. When the centrifuge main body starts to drive the first reflection patch to rotate, when the first reflection patch rotates to the position of the first infrared transmitting and receiving component, the first infrared transmitting and receiving component receives the reflected infrared. At this time, it is one circle. The accuracy of the rotation speed of the centrifuge main body can be judged by the interval time of receiving the infrared.

[0014] Refer to Figure 2 As shown, the bracket includes a base, the base is adapted to the centrifuge main body, the left end of the base is fixedly connected with a support rod, the support rod is adapted to the centrifuge main body, and the top end of the support rod is fixedly connected with the housing.

[0015] In summary, the present utility model has the following beneficial effects:

[0016] (1) In this solution, by removing the second reflection patch from the bottom end of the second infrared transmitting and receiving component and attaching it to the axis center of the centrifuge main body, then, turning on the second infrared transmitting and receiving component and the centrifuge main body, the second infrared transmitting and receiving component emits infrared and receives the infrared reflected back through the second reflection patch. When the centrifuge main body rotates, if the second infrared transmitting and receiving component can stably receive the infrared reflected back by the second reflection patch, then the axis center of the centrifuge main body is stable. If the second infrared transmitting and receiving component cannot stably receive the infrared reflected back by the second reflection patch, then the axis center of the centrifuge main body is unstable, thereby enabling the judgment of the accuracy of the data detected by the current rotation speed detection component for the centrifuge main body.

[0017] (2) In this solution, the motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the horizontal shaft to rotate, the horizontal shaft drives the gear to rotate, the gear drives the rack to rotate, and the rack drives the first infrared transmitting and receiving component to move, so that the first infrared transmitting and receiving component can be aligned with the first reflection patch. This facilitates adjusting the position of the first infrared transmitting and receiving component for centrifuge bodies of different sizes, and subsequent emission of infrared by the first infrared transmitting and receiving component and reception of the infrared reflected back through the first reflection patch. The closer to the periphery, the higher the detection accuracy. Description of the Drawings

[0018] Figure 1 is the schematic diagram of the overall structure in this embodiment;

[0019] Figure 2 is the schematic diagram of the disassembled structure in this embodiment;

[0020] Figure 3 is the schematic diagram of the cross-sectioned structure of the rotational speed detection component in this embodiment;

[0021] Figure 4 is the schematic diagram of the rotational speed detection component and the axis center detection component in this embodiment;

[0022] Figure 5 is the schematic diagram of the centrifuge body in this embodiment.

[0023] In the figures, 1, bracket; 2, rotational speed detection component; 3, axis center detection component; 4, centrifuge body; 101, base; 102, support rod; 201, housing; 202, motor; 203, worm; 204, horizontal shaft; 205, gear; 206, worm wheel; 207, rack; 208, first infrared transmitting and receiving component; 209, first reflection patch; 301, fixed seat; 302, second infrared transmitting and receiving component; 303, second reflection patch. Detailed Embodiment

[0024] The following further elaborates on the present utility model with reference to the accompanying drawings.

[0025] Among them, the same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component, respectively.

[0026] Refer to Figures 1 - 5As shown in the figure, an infrared measurement device for detecting the rotational speed accuracy of a centrifuge in a preferred embodiment of the present utility model includes a bracket 1. A rotational speed detection component 2 is installed at the top end of the bracket 1. An axis detection component 3 is installed at the front end of the rotational speed detection component 2. A centrifuge main body 4 is installed inside the bracket 1, and the centrifuge main body 4 is adapted to the axis detection component 3. The axis detection component 3 includes a fixed seat 301. The fixed seat 301 is installed at the front end of the rotational speed detection component 2. A second infrared emission and reception component 302 is installed at the bottom end of the fixed seat 301. A second reflection patch 303 is magnetically attracted to the centrifuge main body 4 below the bottom end of the second infrared emission and reception component 302, and the second reflection patch 303 is adapted to the axis of the centrifuge main body 4.

[0027] The rotational speed detection component 2 is supported by the bracket 1, and the axis detection component 3 is fixed by the rotational speed detection component 2. At the same time, the centrifuge main body 4 is placed inside the bracket 1, and the rotational speed detection component 2 and the axis detection component 3 detect the rotational speed and axis of the centrifuge main body 4. Among them, the second reflection patch 303 is removed from the bottom end of the second infrared emission and reception component 302 and pasted at the axis of the centrifuge main body 4. Then, the second infrared emission and reception component 302 and the centrifuge main body 4 are turned on. The second infrared emission and reception component 302 emits infrared and receives the infrared reflected back through the second reflection patch 303. When the centrifuge main body 4 rotates, if the second infrared emission and reception component 302 can stably receive the infrared reflected back by the second reflection patch 303, then the axis of the centrifuge main body 4 is stable. If the second infrared emission and reception component 302 cannot stably receive the infrared reflected back by the second reflection patch 303, then the axis of the centrifuge main body 4 is unstable. Thus, the accuracy of the data detected by the current rotational speed detection component 2 for the centrifuge main body 4 can be judged. Moreover, detecting the stability of the axis can also be used as a detection of the separation effect. If the axis is unstable, the separation effect is not uniform enough, which will affect the quality of the substance. This solution can be used for multiple purposes, has a wider applicability. After the detection can be completed, the second reflection patch 303 can be removed and magnetically attracted to the second infrared emission and reception component 302, which is convenient for subsequent secondary use and plays a role in preventing loss.

[0028] Refer to Figures 3 - 5 As shown in the figure, the rotational speed detection component 2 includes a housing 201. The housing 201 is installed on. A motor 202 is fixedly connected inside the housing 201. A worm 203 is fixedly connected to the transmission end of the motor 202, and the worm 203 is rotatably connected to the housing 201.

[0029] The rotational speed detection component 2 further includes a horizontal shaft 204. The horizontal shaft 204 is installed at the top of the bracket 1 and fixedly connected to the fixed seat 301. Inside the housing 201, the horizontal shaft 204 is rotatably connected to the housing 201. A worm gear 206 is fixedly connected to the outer end of the horizontal shaft 204. The worm gear 206 meshes with the worm 203. A gear 205 is fixedly connected to the outer end of the horizontal shaft 204 and on one side of the worm gear 206.

[0030] The rotational speed detection component 2 further includes a rack 207. The rack 207 is installed at the bottom end of the housing 201. The rack 207 is slidably connected to the housing 201. The rack 207 meshes with the gear 205.

[0031] A first infrared emission and reception component 208 is fixedly connected to the bottom end of the rack 207. A first reflection patch 209 is magnetically attracted on the centrifuge main body 4 below the bottom end of the first infrared emission and reception component 208. The first reflection patch 209 is adapted to the rotating disk of the centrifuge main body 4.

[0032] By attaching the first reflection patch 209 to a suitable position on the rotating disk of the centrifuge main body 4, preferably to a position closer to the periphery of the rotating disk of the centrifuge main body 4, and then starting the motor 202, the motor 202 drives the worm 203 to rotate, the worm 203 drives the worm gear 206 to rotate, the worm gear 206 drives the horizontal shaft 204 to rotate, the horizontal shaft 204 drives the gear 205 to rotate, the gear 205 drives the rack 207 to rotate, and the rack 207 drives the first infrared emission and reception component 208 to move, so that the first infrared emission and reception component 208 can be aligned with the first reflection patch 209, facilitating the adjustment of the position of the first infrared emission and reception component 208 for different sizes of the centrifuge main body 4. It is convenient for the first infrared emission and reception component 208 to emit infrared and receive the infrared reflected back through the first reflection patch 209. The closer to the periphery, the higher the detection accuracy. When the centrifuge main body 4 starts to drive the first reflection patch 209 to rotate, when the first reflection patch 209 rotates to the position of the first infrared emission and reception component 208, the first infrared emission and reception component 208 receives the reflected infrared. At this time, it is one revolution. The accuracy of the rotational speed of the centrifuge main body 4 can be judged by the interval time of receiving the infrared.

[0033] Refer to Figure 2 As shown, the bracket 1 includes a base 101. The base 101 is adapted to the centrifuge main body 4. A support rod 102 is fixedly connected to the left end of the base 101. The support rod 102 is adapted to the centrifuge main body 4. The top end of the support rod 102 is fixedly connected to the housing 201.

[0034] Specific implementation process: First, remove the second reflection patch 303 from the bottom of the second infrared emission and reception component 302 and attach it to the axis center of the centrifuge main body 4, and attach the first reflection patch 209 to a suitable position on the rotating disk of the centrifuge main body 4. Then, simultaneously turn on the first infrared emission and reception component 208 and the second infrared emission and reception component 302, and drive the worm 203 to rotate through the motor 202. The worm 203 drives the worm gear 206 to rotate, the worm gear 206 drives the horizontal shaft 204 to rotate, the horizontal shaft 204 drives the gear 205 to rotate, the gear 205 drives the rack 207 to rotate, and the rack 207 drives the first infrared emission and reception component 208 to move, so that the first infrared emission and reception component 208 can be aligned with the first reflection patch 209. At this time, the first infrared emission and reception component 208 emits infrared and receives the infrared reflected back through the first reflection patch 209, and the second infrared emission and reception component 302 emits and receives the infrared reflected back through the second reflection patch 303. Then, start the centrifuge main body 4. The centrifuge main body 4 drives the first reflection patch 209 and the second reflection patch 303 to rotate. When the first reflection patch 209 rotates to the position of the first infrared emission and reception component 208, the first infrared emission and reception component 208 receives the reflected infrared. At this time, it is one circle. The accuracy of the rotation speed of the centrifuge main body 4 can be judged by the interval time of receiving infrared. At the same time, if the second infrared emission and reception component 302 can stably receive the infrared reflected back by the second reflection patch 303, the axis center of the centrifuge main body 4 is stable. If the second infrared emission and reception component 302 cannot stably receive the infrared reflected back by the second reflection patch 303, the axis center of the centrifuge main body 4 is unstable. Thus, the accuracy of the data detected by the current first infrared emission and reception component 208 for the centrifuge main body 4 can be judged, and the detection of the stability of the axis center can also be used as the detection of the separation effect. If the axis center is unstable, the separation effect is not uniform enough, which will affect the quality of the substance and the use of the centrifuge main body 4. This solution can be used for multiple purposes with one machine and has a wider applicability.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. An infrared measuring device for detecting the rotational speed accuracy of a centrifuge, comprising a bracket (1), characterized in that: A rotation speed detection component (2) is installed at the top end of the bracket (1), and an axis center detection component (3) is installed at the front end of the rotation speed detection component (2). A centrifuge main body (4) is installed inside the bracket (1), and the centrifuge main body (4) is adapted to the axis center detection component (3). The axis center detection component (3) includes a fixed seat (301). The fixed seat (301) is installed at the front end of the rotation speed detection component (2). A second infrared emission and reception component (302) is installed at the bottom end of the fixed seat (301). A second reflection patch (303) is magnetically attracted to the centrifuge main body (4) below the bottom end of the second infrared emission and reception component (302), and the second reflection patch (303) is adapted to the axis center of the centrifuge main body (4).

2. The infrared measurement device for detecting the rotational speed accuracy of a centrifuge according to claim 1, wherein: The rotation speed detection component (2) includes a housing (201). A motor (202) is fixedly connected inside the housing (201). A worm (203) is fixedly connected to the transmission end of the motor (202), and the worm (203) is rotatably connected to the housing (201).

3. An infrared measuring device for detecting the rotational speed accuracy of a centrifuge according to claim 1, characterized in that: The rotation speed detection component (2) further includes a horizontal shaft (204). The horizontal shaft (204) is installed at the top end of the bracket (1) and fixedly connected to the fixed seat (301). Inside the housing (201), the horizontal shaft (204) is rotatably connected to the housing (201). A worm gear (206) is fixedly connected to the outer end of the horizontal shaft (204), and the worm gear (206) meshes with the worm (203). A gear (205) is fixedly connected to the outer end of the horizontal shaft (204) and on one side of the worm gear (206).

4. An infrared measuring device for detecting the rotational speed accuracy of a centrifuge according to claim 1, characterized in that: The rotation speed detection component (2) further includes a rack (207). The rack (207) is installed at the bottom end of the housing (201), and the rack (207) is slidably connected to the housing (201). The rack (207) meshes with the gear (205).

5. An infrared measuring device for detecting the rotational speed accuracy of a centrifuge according to claim 4, characterized in that: A first infrared emission and reception component (208) is fixedly connected to the bottom end of the rack (207). A first reflection patch (209) is magnetically attracted to the centrifuge main body (4) below the bottom end of the first infrared emission and reception component (208), and the first reflection patch (209) is adapted to the rotating disk of the centrifuge main body (4).

6. An infrared measuring device for detecting the rotational speed accuracy of a centrifuge according to claim 1, characterized in that: The bracket (1) includes a base (101). The base (101) is adapted to the centrifuge main body (4). A support rod (102) is fixedly connected to the left end of the base (101). The support rod (102) is adapted to the centrifuge main body (4). The top end of the support rod (102) is fixedly connected to the housing (201).

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