CN216349084U - Vibration displacement testing device applied to rotating machinery - Google Patents
Vibration displacement testing device applied to rotating machinery Download PDFInfo
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- CN216349084U CN216349084U CN202123227229.3U CN202123227229U CN216349084U CN 216349084 U CN216349084 U CN 216349084U CN 202123227229 U CN202123227229 U CN 202123227229U CN 216349084 U CN216349084 U CN 216349084U
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- displacement sensor
- vibration
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- link mechanism
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Abstract
The utility model discloses a vibration displacement testing device applied to rotary machinery, belongs to the field of rotor vibration testing equipment, and aims to solve the problem that the accuracy of rotor vibration displacement data obtained by an existing vibration testing device is not high. The device comprises a first displacement sensor, a second displacement sensor, a sliding sleeve, a diamond-shaped link mechanism, a combined rod and a fixed support. The level of second displacement sensor is towards the pivot axle center left, adjust the position of sliding sleeve, place the sliding sleeve under the pivot, and then drive first displacement sensor and remove under the pivot, make rhombus link mechanism take place to warp through the length of adjustment combination bar, and then make the pivot be in first displacement sensor's working area, realize the efficient position control of displacement sensor, when the pivot takes place to vibrate, carry out data acquisition through the vibration of two dimensions of first displacement sensor and second displacement sensor to the pivot, make this device can carry out accurate collection to large-scale rotating machinery's rotor vibration displacement signal.
Description
Technical Field
The utility model belongs to the field of rotor vibration test equipment, and particularly relates to a vibration displacement test device applied to rotary machinery.
Background
Gas turbine, aeroengine and steam turbine all rely on the rotatory machinery that turns into power with fuel of rotor, because take place to bump between rotor and the stator and rub or receive the unusual influence of air current, all probably lead to whole machine to have great vibration, reduce its reliability and stability, if to the vibration processing improper, can cause axle bush damage, rotor bending, or even major axis fracture's trouble and accident, in order to study the harm of unusual vibration to rotating equipment such as steam turbine, vibration testing arrangement has appeared.
At present, a vibration testing device for rotating machinery is mostly a test bed for driving a rotor to rotate, a displacement sensor is arranged on a rotating shaft of the rotor in the radial direction of a position where vibration needs to be tested, simulated vibration is applied to the rotor, and rotor vibration displacement data are obtained through the displacement sensor. The displacement sensor needs to be fixedly installed, the position is not adjustable, and the accuracy of data acquired by the fixed displacement sensor in a single-dimensional mode is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a vibration displacement testing device applied to rotary machinery, and aims to solve the problem that the accuracy of rotor vibration displacement data obtained by the existing vibration testing device is not high. The technical scheme adopted by the utility model is as follows:
a vibration displacement testing device applied to rotary machinery comprises a first displacement sensor, a second displacement sensor, a sliding sleeve, a rhombic connecting rod mechanism, a combined rod and a fixed support; the fixed bolster includes end crossbeam and stand, and the slip cap slides and sets up on end crossbeam, and rhombus link mechanism's lower articulated shaft setting is sheathe in the slip, and rhombus link mechanism's last articulated shaft and the vertical setting of articulated shaft down, first displacement sensor set up on last articulated shaft, and second displacement sensor sets up on the stand, and first displacement sensor and second displacement sensor set up perpendicularly, and respectively towards the pivot axle center.
Further, still include the combination pole, the combination pole includes left side pole and right side pole, and the left end of left side pole links to each other with rhombus link mechanism's left articulated shaft, and the right-hand member of right side pole links to each other with rhombus link mechanism's right articulated shaft, is equipped with a plurality of regulation holes along length direction on the right side pole, is equipped with the fixed orifices on the pole of left side, and fixed orifices and arbitrary one regulation hole pass through bolted connection.
Furthermore, the lower articulated shaft of the rhombic connecting rod mechanism is a locking screw.
Further, the first displacement sensor is vertically arranged upwards, and the second displacement sensor is horizontally arranged.
Further, the first displacement sensor is an eddy current displacement sensor.
Further, the second displacement sensor is an eddy current displacement sensor.
Compared with the prior art, the utility model has the beneficial effects that:
the second displacement sensor is horizontally towards the axle center of the rotating shaft leftwards, the rotating shaft is arranged in the working range of the second displacement sensor, the left end of the bottom cross beam is fixed, the position of the sliding sleeve is adjusted, the sliding sleeve is arranged right below the rotating shaft, the sliding sleeve drives the rhombic connecting rod mechanism, thereby driving the first displacement sensor to move to the right below the rotating shaft, enabling the first displacement sensor to vertically face upwards to the axis of the rotating shaft, enabling the rhombic connecting rod mechanism to deform by adjusting the length of the combined rod, thereby the rotating shaft is positioned in the working area of the first displacement sensor, the high-efficiency position adjustment of the displacement sensor is realized, when the rotating shaft vibrates, data acquisition is carried out to the vibration of countershaft through two dimensions of first displacement sensor and second displacement sensor, makes this device can carry out accurate collection to large-scale rotating machinery's rotor vibration displacement signal.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the left lever;
FIG. 3 is a schematic view of a right side rod;
in the figure: 1-a second displacement sensor, 2-a bracket, 21-a column, 22-a bottom beam, 3-a sliding sleeve, 4-a diamond-shaped link mechanism, 5-a combined rod, 51-a left side rod, 52-a fixed hole, 53-a right side rod, 54-an adjusting hole, 6-a first displacement sensor and 7-a rotating shaft.
Detailed Description
In order that the objects, aspects and advantages of the utility model will become more apparent, the utility model will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The connection mentioned in the utility model is divided into fixed connection and detachable connection, the fixed connection is non-detachable connection and comprises but is not limited to folding edge connection, rivet connection, bonding connection, welding connection and other conventional fixed connection modes, the detachable connection comprises but is not limited to bolt connection, buckle connection, pin connection, hinge connection and other conventional detachment modes, when the specific connection mode is not clearly limited, the skilled person can select at least one connection mode from the existing connection modes to realize the function according to the needs. For example: the fixed connection selects welding connection, and the detachable connection selects bolt connection.
The present invention will be described in further detail with reference to the accompanying drawings, and the following examples are illustrative of the present invention, but the present invention is not limited to the following examples.
In the embodiment, as shown in the figure, the vibration displacement testing device applied to the rotary machine comprises a second displacement sensor 1, a fixed bracket 2, a sliding sleeve 3, a diamond-shaped link mechanism 4 and a first displacement sensor 6; fixed bolster 2 includes end crossbeam 22 and stand 21, stand 21 lower extreme and end crossbeam 22 right-hand member are connected, sliding sleeve 3 slides and sets up on end crossbeam 22, the lower articulated shaft setting of rhombus link mechanism 4 is on sliding sleeve 3, the last articulated shaft of rhombus link mechanism 4 and the vertical setting of articulated shaft down, first displacement sensor 6 sets up on the last articulated shaft of rhombus link mechanism 4, second displacement sensor 1 sets up on stand 21, the vertical upwards setting of first displacement sensor 6, 1 level of second displacement sensor sets up left, first displacement sensor 6 and the perpendicular setting of second displacement sensor 1, and respectively towards 7 axle centers of pivot, adjustment sliding sleeve 3 can adjust the position of 6 horizontal directions of first displacement sensor.
This device still includes combination pole 5, combination pole 5 includes left side pole 51 and right side pole 53, the left end of left side pole 51 links to each other with rhombus link mechanism 4's left articulated shaft, the right-hand member of right side pole 53 links to each other with rhombus link mechanism 4's right articulated shaft, be equipped with a plurality of regulation holes 54 along length direction on the right side pole 53, be equipped with fixed orifices 52 on the left side pole 51, arbitrary hole in fixed orifices 52 and a plurality of regulation holes 54 passes through bolted connection, can change the distance in 5 both ends of combination pole through adjustment and fixed orifices 52 complex regulation hole 54, and then change the distance between rhombus link mechanism 4's last articulated shaft and the articulated shaft down, make the vertical direction position of first displacement sensor 6 obtain the adjustment.
When the vibration displacement of the rotating shaft 7 is tested, the second displacement sensor 1 is horizontally towards the axis of the rotating shaft 7 leftwards, the rotating shaft 7 is arranged in the working range of the second displacement sensor 1, the left end of the bottom cross beam 22 is fixed, the position of the sliding sleeve 3 is adjusted, the sliding sleeve 3 is arranged right below the rotating shaft 7, the sliding sleeve 3 drives the rhombic connecting rod mechanism 4, thereby driving the first displacement sensor 6 to move to the position right below the rotating shaft 7, leading the first displacement sensor to vertically and upwards face to the axis of the rotating shaft 7, the length of the combined rod 5 is adjusted to enable the rotating shaft 7 to be positioned in the working area of the first displacement sensor, so that the high-efficiency position adjustment of the displacement sensor is realized, when the rotating shaft 7 vibrates, data acquisition is carried out to the vibration of countershaft 7 through two dimensions of first displacement sensor 6 and second displacement sensor 1, makes this device can carry out accurate collection to large-scale rotating machinery's rotor vibration displacement signal.
The lower hinged shaft of the hinged shaft 4 of the rhombic connecting rod mechanism is a locking screw, after the position of the first displacement sensor 6 is adjusted, the locking screw is locked, two connecting rods at the lower half part of the rhombic connecting rod mechanism are fixed, and then the whole rhombic connecting rod mechanism is fixed, so that the method for keeping the upper hinged shaft and the lower hinged shaft of the rhombic connecting rod mechanism vertical is realized.
And the articulated shaft of the first displacement sensor articulated shaft 6 and the articulated shaft of the second displacement sensor articulated shaft 1 are eddy current displacement sensors. The eddy current displacement sensor is a non-contact displacement sensor, and is more suitable for testing the vibration displacement of the rotor of the rotary machine.
The above embodiments are merely illustrative of the present patent and do not limit the scope of the patent, and those skilled in the art can make modifications to the parts thereof without departing from the spirit and scope of the patent.
Claims (6)
1. The utility model provides a be applied to rotary machine's vibration displacement testing arrangement which characterized in that: comprises a second displacement sensor (1), a fixed bracket (2), a sliding sleeve (3), a diamond-shaped link mechanism (4) and a first displacement sensor (6); fixed bolster (2) are including end crossbeam (22) and stand (21), stand (21) lower extreme and end crossbeam (22) right-hand member are connected, slip cap (3) slide to set up on end crossbeam (22), the lower articulated shaft setting of rhombus link mechanism (4) is on slip cap (3), the last articulated shaft and the vertical setting of articulated shaft down of rhombus link mechanism (4), first displacement sensor (6) set up on the last articulated shaft of rhombus link mechanism (4), second displacement sensor (1) sets up on stand (21), first displacement sensor (6) and second displacement sensor (1) set up perpendicularly, and respectively towards pivot (7) axle center.
2. A vibration displacement testing device applied to a rotary machine according to claim 1, wherein: still include combination pole (5), combination pole (5) are including left side pole (51) and right side pole (53), the left end of left side pole (51) links to each other with the left articulated shaft of rhombus link mechanism (4), the right-hand member of right side pole (53) links to each other with the right articulated shaft of rhombus link mechanism (4), be equipped with a plurality of regulation holes (54) along length direction on right side pole (53), be equipped with on left side pole (51) fixed orifices (52), bolted connection is passed through in fixed orifices (52) and arbitrary one regulation hole (54).
3. A vibration displacement testing device applied to a rotary machine according to claim 2, wherein: the lower articulated shaft of the rhombic connecting rod mechanism (4) is a locking screw.
4. A vibration displacement testing device applied to a rotary machine according to claim 3, wherein: the first displacement sensor (6) is vertically arranged upwards, and the second displacement sensor (1) is horizontally arranged leftwards.
5. A vibration displacement testing device applied to a rotary machine according to claim 4, wherein: the first displacement sensor (6) is an eddy current displacement sensor.
6. A vibration displacement testing device applied to a rotary machine according to claim 4, wherein: the second displacement sensor (1) is an eddy current displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123227229.3U CN216349084U (en) | 2021-12-21 | 2021-12-21 | Vibration displacement testing device applied to rotating machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123227229.3U CN216349084U (en) | 2021-12-21 | 2021-12-21 | Vibration displacement testing device applied to rotating machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216349084U true CN216349084U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123227229.3U Active CN216349084U (en) | 2021-12-21 | 2021-12-21 | Vibration displacement testing device applied to rotating machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216349084U (en) |
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2021
- 2021-12-21 CN CN202123227229.3U patent/CN216349084U/en active Active
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