阅读说明：本技术 一种高转速校准装置 (High-rotating-speed calibrating device ) 是由 陈金明 麦志颛 刘健东 梁伟龙 彭睿 洪维鑫 李滨 于 2021-09-03 设计创作，主要内容包括：本发明公开一种高转速校准装置,包括转速测量传感器、安装平台、控制器和用于带动被测物转动的可变速伺服驱动机构；所述安装平台上设置有用于安置被测物的减振底座,所述可变速伺服驱动机构和转速测量传感器均安装在所述安装平台上,所述减振底座位于转速测量传感器和可变速伺服驱动机构之间,所述转速测量传感器和可变速伺服驱动机构均与所述控制器电性连接；该高转速校准装置解决了转矩转速测量装置或动态扭矩测量装置这种类型设备在正常工作中的转速参数溯源的问题。(The invention discloses a high-rotating-speed calibration device, which comprises a rotating speed measuring sensor, an installation platform, a controller and a variable-speed servo driving mechanism, wherein the variable-speed servo driving mechanism is used for driving a measured object to rotate; the mounting platform is provided with a vibration reduction base for mounting a measured object, the variable-speed servo driving mechanism and the rotating speed measuring sensor are both mounted on the mounting platform, the vibration reduction base is positioned between the rotating speed measuring sensor and the variable-speed servo driving mechanism, and the rotating speed measuring sensor and the variable-speed servo driving mechanism are both electrically connected with the controller; the high-rotating-speed calibration device solves the problem of tracing the rotating speed parameters of the torque rotating speed measuring device or the dynamic torque measuring device in normal operation.)

1. A high rotational speed calibrating device which characterized in that: the device comprises a rotating speed measuring sensor, a mounting platform, a controller and a variable-speed servo driving mechanism for driving a measured object to rotate;

the mounting platform is provided with a vibration reduction base used for arranging a measured object, the variable-speed servo driving mechanism and the rotating speed measuring sensor are both arranged on the mounting platform, the vibration reduction base is located between the rotating speed measuring sensor and the variable-speed servo driving mechanism, and the rotating speed measuring sensor and the variable-speed servo driving mechanism are both electrically connected with the controller.

2. A high speed calibration device according to claim 1, wherein: the variable-speed servo driving mechanism comprises a servo unit and a speed changing device, and the servo unit and the speed changing device are connected with each other through a shaft.

3. A high speed calibration device according to claim 1, wherein: and the rotating speed measuring sensor and the speed changing device are both provided with centering connecting devices used for being connected with a measured object.

4. A high speed calibration device according to claim 2, wherein: the speed change device is a gear speed changer or an electronic speed changer.

5. A high speed calibration device according to claim 1, wherein: the damping base comprises a base top plate, a base bottom plate, damping springs and a connecting rod, wherein the connecting rod and the damping springs are located between the base top plate and the base bottom plate, the base top plate and the base bottom plate are connected with the connecting rod in a sliding mode, and two ends of each damping spring are fixedly connected with the base top plate and the base bottom plate respectively.

6. A high speed calibration device according to claim 5, wherein: the base bottom plate is fixedly connected with the mounting platform, and the base top plate is provided with a positioning mounting platform used for being connected with a measured object.

7. A high speed calibration device according to claim 2, wherein: the mounting platform is provided with a first support arm and a second support arm, the servo unit and the speed change device are both located on the first support arm, and the rotating speed measuring sensor is located on the second support arm.

8. A high speed calibration device according to claim 4, wherein: the centering connecting device is a flexible coupling.

Technical Field

The invention relates to the technical field of motor rotating speed calibration, in particular to a high rotating speed calibration device.

Background

The traditional detection of the rotating speed measuring instrument usually uses a brushless motor or a stepping motor to be matched with a multi-stage gear speed changing device to form a standard rotating speed device, and the existing high-speed standard device is provided with a portable rotor, does not have inertia load dragging capacity and can only be used as a rotating speed source. For a torque rotating speed measuring device or a dynamic torque measuring device which has certain rotation inertia, the existing high rotating speed standard device does not have application conditions structurally, and meanwhile, due to the influence of the rotation inertia of a measured object, the starting mode and the running stability of the traditional high rotating speed standard device are influenced, so that the high rotating speed standard device with the running capacity of dragging the rotation inertia load is required in the design of a rotating speed standard.

Disclosure of Invention

The invention provides a high-rotation-speed standard device capable of dragging certain rotational inertia load to operate, which solves the problem of tracing the rotation speed parameters of a torque rotation speed measuring device or a dynamic torque measuring device in normal operation.

In order to solve the problems, the invention adopts the following technical scheme:

a high-rotation-speed calibration device comprises a rotation speed measuring sensor, a mounting platform, a controller and a variable-speed servo driving mechanism for driving a measured object to rotate; the mounting platform is provided with a vibration reduction base used for arranging a measured object, the variable-speed servo driving mechanism and the rotating speed measuring sensor are both arranged on the mounting platform, the vibration reduction base is positioned between the rotating speed measuring sensor and the variable-speed servo driving mechanism, and the rotating speed measuring sensor and the variable-speed servo driving mechanism are both electrically connected with the controller.

Preferably, the variable speed servo drive mechanism comprises a servo unit and a transmission, and the servo unit and the transmission are connected with each other.

Preferably, the rotation speed measuring sensor and the transmission are each equipped with centering connection means for connecting to the object to be measured.

Preferably, the transmission device is a gear transmission or an electronic transmission.

Preferably, the damping base comprises a base top plate, a base bottom plate, a damping spring and a connecting rod, the connecting rod and the damping spring are both located between the base top plate and the base bottom plate, the base top plate and the base bottom plate are both connected with the connecting rod in a sliding mode, and two ends of the damping spring are respectively fixedly connected with the base top plate and the base bottom plate.

Preferably, the base bottom plate is fixedly connected with the mounting platform, and the base top plate is provided with a positioning mounting platform used for being connected with a measured object.

Preferably, the mounting platform is provided with a first support arm and a second support arm, the servo unit and the speed changing device are both positioned on the first support arm, and the rotating speed measuring sensor is positioned on the second support arm.

Preferably, the centering connection means is a flexible coupling.

When in work: the rotating speed or angular speed value of the main shaft can be accurately detected by using a rotating speed measuring sensor, and the rotating speed measuring sensor transmits the detected information to the controller for processing;

the controller controls the current of the servo unit to start acceleration from rest in a constant torque output mode, stable driving torque is output to ensure that a measured object can be dragged to start at stable acceleration, and when the rotating speed measuring sensor detects that the rotating speed of the main shaft reaches an expected value, information is fed back to the controller;

after the rotating speed is stabilized, the controller controls the current of the servo unit to enable the servo unit to operate in a constant rotating speed mode;

when the work is finished, the controller controls the current of the servo unit to enable the servo unit to decelerate in a constant torque mode until the whole measuring process is finished.

The invention has the beneficial effects that: the device meets the measurement performance requirement as a standard rotating speed device, has output standard frequency capable of meeting the requirement of developing the measurement activities of a rotating speed torque measuring device and a dynamic torque measuring type matching instrument, and solves the problem of tracing the rotating speed parameters of the torque rotating speed measuring device or the dynamic torque measuring device in normal work.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an overall structure of a high-speed calibration apparatus according to the present invention.

Fig. 2 is a schematic diagram of the internal structure of the vibration damping base of the high-speed calibration device according to the present invention.

Fig. 3 is a block diagram of the components of a high speed calibration apparatus according to the present invention.

In the figure:

10. a rotation speed measuring sensor;

20. mounting a platform; 21. a first support arm; 22. a second support arm;

30. a controller; 31. an output module; 32. an input module; 33. an operation panel.

40. A variable speed servo drive; 41. a servo unit; 42. a speed change device;

50. a vibration damping base; 51. a base top plate; 52. a base bottom plate; 53. a damping spring; 54. A connecting rod; 55. a guide groove; 56. positioning a groove; 57. a foamed shock-absorbing rubber pad; 58. perforating; 59. positioning the mounting table;

60. and (4) centering the connecting device.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, and not all of the embodiments.

In embodiments, it is to be understood that the terms "middle," "upper," "lower," "top," "right," "left," "above," "back," "middle," and the like are used in the orientation or positional relationship indicated in the drawings for convenience of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus should not be construed as limiting.

In addition, in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, terms such as installation, connection, and connection, etc., are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1 to 3, a high rotation speed calibration device comprises a rotation speed measuring sensor 10, a mounting platform 20, a controller 30 and a variable speed servo driving mechanism 40 for driving a measured object to rotate; the mounting platform 20 is provided with a vibration damping base 50 for arranging a measured object, the vibration damping base 50 is located between the rotating speed measuring sensor 10 and the variable speed servo driving mechanism 40, and the rotating speed measuring sensor 10 and the variable speed servo driving mechanism 40 are electrically connected with the controller 30.

When a measured object with certain inertia is dragged to operate, the rotating speed measuring sensor 10 can accurately detect the rotating speed or the angular speed value of the main shaft, shaft rotating speed information detected by the rotating speed measuring sensor 10 is transmitted to the controller 30 to be processed, the controller 30 controls the servo unit 41 to output stable driving torque, the stable acceleration starting can be ensured under the state that the measured object is dragged, and finally the dragged measured object can stably operate at a set rotating speed value.

In the present embodiment, the variable speed servo driving mechanism 40 includes a servo unit 41 and a speed changing device 42, and the servo unit 41 and the speed changing device 42 are coupled to each other.

In the present exemplary embodiment, the rotational speed measuring sensor 10 and the transmission 42 are each equipped with a centering connection 60 for connection to a measured object.

In this embodiment, the damping base 50 includes a base top plate 51, a base bottom plate 52, a damping spring 53 and a connecting rod 54, the connecting rod 54 and the damping spring 53 are located between the base top plate 51 and the base bottom plate 52, both the base top plate 51 and the base bottom plate 52 are slidably connected to the connecting rod 54, and both ends of the damping spring 53 are respectively fixedly connected to the base top plate 51 and the base bottom plate 52. The radial vibration generated when the tested object is dragged is absorbed by the vibration damping base 50, which is beneficial to driving the tested device to operate at a stable rotating speed.

In this embodiment, base roof 51 and base bottom plate 52 are provided with the guide way 55 that mates with connecting rod 54, base roof 51 and base bottom plate 52 are provided with the constant head tank 56 that mates with damping spring 53, constant head tank 56 is connected with guide way 55, the axis of constant head tank 56 is located same straight line with the axis of guide way 55, connecting rod 54 inserts damping spring 53, and the both ends of connecting rod 54 are equallyd divide and are inserted respectively in the guide way 55 of base roof 51 and the guide way 55 of base bottom plate 52, damping spring 53 tip inserts in constant head tank 56. A plurality of damping springs are uniformly arranged between the base top plate 51 and the base bottom plate 52, and the base top plate 51 and the base bottom plate 52 are connected by a connecting rod 54 having sliding and guiding functions. The damping effect can be adjusted by adjusting the number of damping springs between the base top plate 51 and the base bottom plate 52.

In this embodiment, be provided with foaming rubber gasket 57 between base roof 51 and the base bottom plate 52, be provided with perforation 58 on the foaming rubber gasket 57, damping spring 53 and connecting rod 54 all pass the setting of perforation 58, and base roof 51 and base bottom plate 52 all bond with foaming rubber gasket 57, and the connection stability between promotion base roof 51 that can be further and the base bottom plate 52 reduces the burden of connecting rod 54, can promote holistic shock attenuation effect simultaneously again.

In this embodiment, the base bottom plate 52 is fixedly connected to the mounting platform 20, the base top plate 51 is provided with a positioning mounting table 59 for connecting to a measured object, and the positioning mounting table 59 is bolted to the measured object when in use.

In this embodiment, the mounting platform 20 is provided with a first arm 21 and a second arm 22, the servo unit 41 and the speed changing device 42 are fixed on the first arm 21, and the rotation speed measuring sensor 10 is fixed on the second arm 22.

In some embodiments, the centering connection 60 is a diaphragm flexible coupling that is used to reduce axial eccentricity, drift angle, and axial vibration between the drive shaft and the shaft of the device under test.

In some embodiments, the transmission 42 is a gear transmission.

In some embodiments, the transmission 42 is an electronic transmission.

The controller 30 includes an output module 31 having a time-base signal output interface and a standard frequency output interface, an input module 32 having a rotational speed signal output port, a rotational speed signal input port (not shown), and an operation panel 33. The controller 30 can collect the rotation speed output signal of the measured object through the rotation speed signal input port and compare the signal with the standard rotation speed signal, and can also output the standard rotation speed signal through the rotation speed signal output port to detect the matched instrument of the measured sensor. The device meets the measurement performance requirement as a standard rotating speed device, has output standard frequency capable of meeting the requirement of developing the measurement activities of a rotating speed torque measuring device and a dynamic torque measuring type matching instrument, and solves the problem of tracing the rotating speed parameters of the torque rotating speed measuring device or the dynamic torque measuring device in normal work.

The controller 30 can output a time-base operation signal to meet the measurement performance requirement of a standard rotating speed device, and the output standard frequency can meet the measurement activities of a rotating speed torque measurement device and a dynamic torque measurement type supporting instrument.

When in work: the rotating speed or angular speed value of the main shaft can be accurately detected by using the rotating speed measuring sensor 10, and the rotating speed measuring sensor 10 transmits the detected information to the controller 30 for processing;

the controller 30 controls the current of the servo unit 41 to start acceleration from rest in a constant torque output mode, outputs stable driving torque to ensure that a detected object can be dragged to start at stable acceleration, and feeds information back to the controller 30 when the rotating speed measuring sensor 10 detects that the rotating speed of the main shaft reaches a desired value;

the controller 30 controls the current of the servo unit 41 to make it run in a constant rotating speed mode, so that the measured object runs stably at a set rotating speed value;

when the operation is finished, the controller 30 controls the current of the servo unit 41 to be increased/decreased in a constant torque manner until the whole measuring process is finished.

The foregoing is illustrative of embodiments of the present invention, and the scope of the invention is not limited thereto, as any changes or substitutions that do not occur to the skilled artisan are intended to be covered by the scope of the invention, and no element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Further, as used herein, the article "the" is intended to include the incorporation of one or more items referenced by the article "the" and may be used interchangeably with "one or more". Further, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise. In addition, as used herein, the term "or" when used in series is intended to be inclusive and may be used interchangeably with "and/or" unless specifically stated otherwise, e.g., if used in conjunction with "or" only one of.