CN220525212U - Concentric state monitoring and adjusting device for rotation test - Google Patents

Abstract

The utility model discloses a concentric state monitoring and adjusting device for a rotation test, which comprises a base, wherein a central hole is formed in the central position of the base, 4 groups of concentric monitoring and adjusting assemblies are uniformly arranged on the base, the 4 groups of concentric monitoring and adjusting assemblies can be independently adjusted to support the hollow inner wall of an external rotating member so as to fix the external rotating member, the rotation eccentric value of the external rotating member is obtained, and the position of the external rotating member is adjusted according to the rotation eccentric value to enable the external rotating member to return to the concentric state during rotation. The device can monitor the eccentric state of the external rotating member (hollow member) in real time in a rotation test, and adjust the position of the external rotating member according to the eccentric state so as to enable the external rotating member to return to the concentric state during rotation. The device can be suitable for external rotating parts with arbitrary hollow shapes, and can be suitable for various detected conditions.

Description

A concentric state monitoring and adjustment device for rotation testing

Technical field

The utility model relates to the technical field of concentric monitoring, and specifically relates to a concentric state monitoring and adjusting device for rotation testing.

Background technique

As a pressure standard instrument, the piston pressure and vacuum gauge needs to be calibrated regularly. When the piston pressure and vacuum gauge is calibrated, it needs to be in a rotating state. There is a vertical upward rod at the top of the piston pressure and vacuum gauge. During calibration, a pallet needs to be connected to this rod, and weights and other counterweights are placed on the pallet to follow the rotation of the piston pressure and vacuum gauge. Since the hole in the middle of the pallet has the same diameter as the rod, the pallet can be fixed by the rod. However, there are holes of different diameters in the centers of weights of different specifications. Some have small center holes, and some have large center holes, which cannot be unified. Therefore, weights of different specifications cannot be fixed through this rod. During calibration, the piston pressure and vacuum gauge will rotate. Without a fixed weight, absolute concentricity cannot be guaranteed and sliding deviation will occur, resulting in system instability. Unless there is a slot of appropriate size on the pallet to catch the outer periphery of the weight, the weight will slide to the side if it is slightly inconsistent when rotating. However, if a slot is provided on the pallet, only fixed specifications of weights can be placed. , unable to adapt to various inspection situations.

In the existing technology, there is no effective device or method for monitoring and adjusting the eccentric position of the hollow part in the rotation test.

Utility model content

In view of the above-mentioned deficiencies in the prior art, the purpose of this utility model is to provide a concentric state monitoring and adjustment device for rotation testing. To solve the problem of how to monitor and adjust the eccentric position of the hollow part in the existing rotation test.

In order to achieve the above-mentioned purpose of the utility model, the technical solutions adopted by the utility model are:

A concentric state monitoring and adjustment device for rotation testing is provided, including a base. A central hole is provided at the center of the base. Four sets of concentric monitoring and adjusting components are evenly arranged on the base. Each of the four sets of concentric monitoring and adjusting components can be adjusted individually. , supports the hollow inner wall of the external rotating part to fix the external rotating part, obtains the rotational eccentricity value of the external rotating part, and adjusts the position of the external rotating part according to the rotational eccentricity value to return it to the concentric state during rotation.

Further, the concentric monitoring and adjusting assembly includes a movable connecting rod, one end of the connecting rod faces the central hole, the other end of the connecting rod is connected to one end of the support rod, and the other end of the support rod is in contact with the hollow inner wall of the external rotating member.

Further, a gear is provided on the base, and one side of the connecting rod has a gear groove matching the gear. The connecting rod can be driven to move by rotating the gear.

Further, a pressure sensor is provided between the connecting rod and the support rod to measure the pressure value between the connecting rod and the support rod, and the pressure sensor is connected to the display assembly.

Furthermore, the connecting rod has a hexagonal structure.

The beneficial effects of this utility model are:

The device of the utility model can monitor the eccentric state of the external rotating part (hollow part) in real time during the rotation test, adjust the position of the external rotating part according to the eccentric state, and return it to the concentric state during rotation. Moreover, the device of the present utility model can be applied to external rotating parts with hollow shapes of any shape, and can be adapted to various inspection situations.

Description of drawings

Figure 1 is a schematic structural diagram of the concentric state monitoring and adjustment device used for rotation testing of the present invention;

Figure 2 is a schematic diagram of the connection structure between the concentric state monitoring and adjustment device of the present invention and the external rotating part used in the rotation test.

Among them: 1. Base; 2. Center hole; 3. Connecting rod; 4. Support rod; 5. Gear; 6. Gear groove; 7. Pressure sensor.

Detailed ways

Specific embodiments of the present utility model are described below to facilitate those skilled in the art to understand the utility model. However, it should be clear that the present utility model is not limited to the scope of the specific embodiments. For those of ordinary skill in the technical field, as long as Various changes are obvious within the spirit and scope of the present utility model as defined and determined by the appended claims, and all utility model creations utilizing the concepts of the present utility model are protected.

Example

In this embodiment, a piston pressure vacuum gauge is used as the application carrier of the concentric state monitoring and adjustment device for rotation testing of the present invention. However, the device of this utility model includes but is not limited to the calibration of piston pressure and vacuum gauges. For rotation tests, the device of this utility model can be used to monitor and adjust the eccentric position of the hollow part.

As shown in Figure 1, a concentric state monitoring and adjustment device for rotation testing includes a base 1. The base 1 is placed on the tray used for calibration of the piston pressure vacuum gauge. The center of the base 1 is provided with a central hole 2. , used to fix the base 1 on the vertical rod of the piston pressure vacuum gauge so that the center of the base 1 is consistent with the center of the tray. The external rotating part (weight) is hollow, and its interior can be of any shape.

There are 4 sets of concentric monitoring and adjusting components on the base 1 to fix the external rotating parts (such as the weights shaded in Figure 2). The 4 sets of concentric monitoring and adjusting components can be adjusted individually to support the external rotating parts. Hollow the inner wall to hold it in place. A pressure sensor 7 is provided between the connecting rod 3 and the support rod 4, and the pressure sensor 7 is connected to the display assembly. In the rotation calibration, the rotation eccentricity value is obtained according to the data of the pressure sensor 7, and the concentricity monitoring and adjustment component is adjusted according to the feedback information to return the external rotating part to the concentric state during rotation. If the inside of the external rotating part is irregularly shaped, it can By adjusting the concentric monitoring and adjusting component, the center of gravity of the external rotating part coincides with the center of gravity of the piston pressure vacuum gauge, tray and base.

Specifically, the concentric monitoring and adjusting assembly includes a movable connecting rod 3. The connecting rod 3 has a hexagonal structure to facilitate fixation and prevent rotation. One end of the connecting rod 3 faces the central hole 2, and the other end of the connecting rod 3 is connected to one end of the supporting rod 4. The other end of the supporting rod 4 is in contact with the hollow inner wall of the external rotating member. A gear 5 is provided on the base 1, and a gear groove 6 matching the gear 5 is provided on one side of the connecting rod 3. The connecting rod 3 can be driven to move by rotating the gear 5. The eccentric state of the external rotating part can be monitored through the pressure sensor 7, and the pressure value is sent to the external display component for display in real time, and can be cleared in real time.

For external rotating parts of different specifications (center hole sizes are different), the position of the support rod 4 can be adjusted by rotating the gear 5 so that the support rod 4 supports the hollow inner wall of the external rotating part. During the calibration process of the piston pressure vacuum gauge, the position of the support rod 4 can be adjusted. Keep the rotating external rotating parts from sliding and deflecting. At the same time, according to the data of the pressure sensor 7, adjust the gear 5 appropriately to balance the unbalanced opposite indication values and adjust the external rotating parts to a concentric rotation state. The axis of rotation of the external rotating part coincides with the connecting rod 3, thereby reducing eccentricity and shaking.

The device of the utility model can monitor the eccentric state of the external rotating part (hollow part) in real time during the rotation test, adjust the position of the external rotating part according to the eccentric state, and return it to the concentric state during rotation. Moreover, the device of the present utility model can be applied to external rotating parts with hollow shapes of any shape, and can be adapted to various inspection situations.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is therefore intended that all claims falling within the rights All changes within the meaning and scope of the required equivalent elements are included in the present invention.

In addition, it should be understood that although this specification is described in terms of implementations, not each implementation only contains an independent technical solution. This description of the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole. , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. A concentric state monitoring and adjustment device for rotation testing, characterized in that it includes a base (1) with a central hole (2) provided at the center of the base (1). There are 4 sets of concentric monitoring and adjusting components evenly arranged. Each of the 4 sets of concentric monitoring and adjusting components can be adjusted individually to support the hollow inner wall of the external rotating part so that the external rotating part is fixed and the rotation eccentricity value of the external rotating part is obtained. According to the rotation eccentricity The value adjusts the position of the external rotating member to return it to the concentric state during rotation. 2. The concentric state monitoring and adjusting device for rotation testing according to claim 1, characterized in that the concentric monitoring and adjusting assembly includes a movable connecting rod (3), one end of the connecting rod (3) Toward the central hole (2), the other end of the connecting rod (3) is connected to one end of the support rod (4), and the other end of the support rod (4) is in contact with the hollow inner wall of the external rotating part. 3. The concentric state monitoring and adjustment device for rotation testing according to claim 2, characterized in that a gear (5) is provided on the base (1), and one side of the connecting rod (3) has a The gear groove (6) matched with the gear (5) can drive the connecting rod (3) to move by rotating the gear (5). 4. The concentric state monitoring and adjustment device for rotation testing according to claim 2, characterized in that a pressure sensor (7) is provided between the connecting rod (3) and the support rod (4) for The pressure value between the connecting rod (3) and the support rod (4) is measured, and the pressure sensor (7) is connected to the display assembly. 5. The concentric state monitoring and adjusting device for rotation testing according to claim 2, characterized in that the connecting rod (3) has a hexagonal structure.