CN215569056U - Sensor fixing device for hydroelectric generating set stability test - Google Patents
Sensor fixing device for hydroelectric generating set stability test Download PDFInfo
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- CN215569056U CN215569056U CN202120935101.3U CN202120935101U CN215569056U CN 215569056 U CN215569056 U CN 215569056U CN 202120935101 U CN202120935101 U CN 202120935101U CN 215569056 U CN215569056 U CN 215569056U
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Abstract
The utility model discloses a sensor fixing device for a hydroelectric generating set stability test, which comprises a connecting seat, a fixing hole, a transmission shaft, a first knob, a guide hole seat, an end cover, a second knob, a screw, a mounting groove, a first connecting shaft, a telescopic arm, a clamping hole seat, a first locking screw, a second connecting shaft, a turbine, a worm and a second locking screw, wherein the first knob is arranged on the connecting seat; one end of the sensor extends into the clamping hole of the clamping hole seat, and then the locking screw is locked to complete the fixation of the sensor, so that the stability and the reliability in use are ensured; according to the utility model, the screw rod is driven by the knob II to rotate to drive the telescopic arm to integrally move left and right, so that the distance of the detection end of the sensor can be accurately adjusted, and the detection accuracy is improved; according to the utility model, the knob drives the transmission shaft and the worm to rotate, and the worm can drive the turbine to drive the second connecting shaft and the guide hole seat to integrally rotate, so that the requirement of accurate detection of different directions of the sensor is met, and the detection accuracy is further improved.
Description
Technical Field
The utility model relates to a fixing device, in particular to a sensor fixing device for a hydroelectric generating set stability test.
Background
At present, a unit stability test becomes a routine test before and after overhaul of a hydropower station unit, and is a main method for checking the vibration level of the unit, analyzing a vibration fault source, determining a unit vibration area and researching other vibration problems, and the effectiveness and the high efficiency of test data processing are the basis and the key of all analysis. Although the stability test of the hydroelectric generating set is gradually mature, problems still exist in the field test, which affect the accurate measurement of test data and the simplification of test procedures. Taking a bulb tubular unit as an example, when measuring the swing, the eddy current displacement sensor needs to be stably fixed at a measuring point to improve the measurement precision in the test process. At present, in field tests, firstly, an eddy current displacement sensor and a dial indicator magnetic gauge stand are adhered together by using an insulating adhesive tape, and then the gauge stand is adsorbed at a measuring point by using the magnetic force of the dial indicator magnetic gauge stand, but the eddy current displacement sensor cannot be completely and firmly fixed on the dial indicator magnetic gauge stand based on the proficiency of testers and the viscosity of the insulating adhesive tape, so that the measurement accuracy of test data can be influenced; the existing sensor fixing device for the hydroelectric generating set stability test is simple in function, and the position adjustment of the sensor is troublesome and inconvenient.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide the sensor fixing device for the stability test of the hydroelectric generating set, and solves the problems that the existing sensor fixing device for the stability test of the hydroelectric generating set is simple in function and inconvenient in position adjustment of a sensor.
The technical scheme adopted by the utility model for realizing the purpose is as follows: the sensor fixing device for the hydroelectric generating set stability test comprises a magnetic gauge stand and is characterized by further comprising a connecting seat, a fixing hole, a transmission shaft, a first knob, a guide hole seat, an end cover, a second knob, a screw, an installation groove, a first connecting shaft, a telescopic arm, a hole clamping seat, a first locking screw, a second connecting shaft, a turbine, a worm and a second locking screw; a fixing hole is formed in the center of the lower side of the magnetic gauge stand, and an installation groove is formed in the upper side of the magnetic gauge stand; a locking screw II is movably connected in a threaded hole formed in the right side of the fixing hole, and the fixing hole is fixedly connected with a connecting rod on the upper side of the magnetic gauge stand through the locking screw II; the outer part of the left side of the guide hole seat is movably connected inside the mounting groove, the upper left side of the guide hole seat is fixedly connected with a first connecting shaft, and the outer part of the first connecting shaft is movably connected in a hole arranged in the center of the upper side of the mounting groove; the axis of the second connecting shaft and the axis of the first connecting shaft are positioned on the same straight line, the top of the second connecting shaft is fixedly connected to the outside of the lower left side of the guide hole seat, and the second connecting shaft is movably connected in a hole formed in the center of the lower side of the mounting groove; the end cover is fixedly connected to the opening at the left side of the guide hole seat; the outer part of the left side of the screw is movably connected in a center hole of the end cover, the end part of the left side of the screw is fixedly connected with a second knob, and the right side of the screw is positioned in the center of the inner part of the guide hole seat; the left side of the telescopic arm is transversely movably connected inside the guide hole seat, and a transverse threaded hole formed in the center of the telescopic arm is connected with the screw rod; the center of the left side of the clamping hole seat is fixedly connected with the right side end part of the telescopic arm, and a threaded hole formed in the right side of the clamping hole seat is movably connected with a first locking screw; the turbine is movably connected inside the lower side of the connecting seat, and the center of the turbine is fixedly connected with the outside of the lower side of the second connecting shaft; the transmission shaft is transversely set up and swing joint is inside the connecting seat downside, the outside fixedly connected with worm of transmission shaft, and the worm is connected with the turbine, transmission shaft left side end fixedly connected with knob one.
Preferably, the first knob and the second knob are provided with anti-skid grains on the outer surfaces.
Preferably, the outer side ends of the first locking screw and the second locking screw are fixedly connected with a handle.
Preferably, the axis of the first connecting shaft perpendicularly intersects with the central line of the screw.
Preferably, the guide hole in the guide hole seat is a rectangular hole and is matched with the outer part of the telescopic arm.
The utility model has the beneficial effects that:
(1) according to the utility model, one end of the sensor extends into the clamping hole of the clamping hole seat, and then the locking screw is locked to complete the fixation of the sensor, so that the stability and reliability in use are ensured.
(2) According to the utility model, the screw rod is driven by the knob II to rotate to drive the telescopic arm to integrally move left and right, so that the distance of the detection end of the sensor can be accurately adjusted, and the detection accuracy is improved.
(3) According to the utility model, the knob drives the transmission shaft and the worm to rotate, and the worm can drive the turbine to drive the second connecting shaft and the guide hole seat to integrally rotate, so that the requirement of accurate detection of different directions of the sensor is met, and the detection accuracy is further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a partial cross-sectional view of the present invention.
In the figure: 1-a magnetic watch base; 2-a connecting seat; 3-fixing holes; 4-a transmission shaft; 5, turning a first knob; 6-a guide hole seat; 7-end cap; 8-knob two; 9-screw rod; 10-mounting grooves; 11-connecting the shaft I; 12-a telescopic arm; 13-a bayonet seat; 14-locking screw one; 15-connecting the shaft II; 16-a turbine; 17-a worm; and 18-locking screw II.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1-2, a sensor fixing device for a hydroelectric generating set stability test comprises a magnetic gauge stand 1, and further comprises a connecting seat 2, a fixing hole 3, a transmission shaft 4, a first knob 5, a guide hole seat 6, an end cover 7, a second knob 8, a screw 9, a mounting groove 10, a first connecting shaft 11, a telescopic arm 12, a hole clamping seat 13, a first locking screw 14, a second connecting shaft 15, a turbine 16, a worm 17 and a second locking screw 18; a fixing hole 3 is formed in the center of the lower side of the magnetic gauge stand 1, and a mounting groove 10 is formed in the upper side of the magnetic gauge stand 1; a locking screw II 18 is movably connected in a threaded hole arranged on the right side of the fixing hole 3, and the fixing hole 3 is fixedly connected with a connecting rod on the upper side of the magnetic gauge stand 1 through the locking screw II 18; the outer part of the left side of the guide hole seat 6 is movably connected inside the mounting groove 10, the upper left side of the guide hole seat 6 is fixedly connected with a connecting shaft I11, and the outer part of the connecting shaft I11 is movably connected in a hole arranged in the center of the upper side of the mounting groove 10; the axis of the second connecting shaft 15 and the axis of the first connecting shaft 11 are positioned on the same straight line, the top of the second connecting shaft 15 is fixedly connected to the outside of the lower left side of the guide hole seat 6, and the second connecting shaft 15 is movably connected to a hole formed in the center of the lower side of the mounting groove 10; the end cover 7 is fixedly connected to the opening at the left side of the guide hole seat 6; the outer part of the left side of the screw rod 9 is movably connected in a central hole of the end cover 7, the end part of the left side of the screw rod 9 is fixedly connected with a second knob 8, and the right side of the screw rod 9 is positioned in the center of the inner part of the guide hole seat 6; the left side of the telescopic arm 12 is transversely movably connected inside the guide hole seat 6, and a transverse threaded hole formed in the center of the telescopic arm 12 is connected with the screw rod 9; the center of the left side of the clamping hole seat 13 is fixedly connected with the right side end part of the telescopic arm 12, and a locking screw I14 is movably connected in a threaded hole formed in the right side of the clamping hole seat 13; the turbine 16 is movably connected inside the lower side of the connecting seat 2, and the center of the turbine 16 is fixedly connected with the outer part of the lower side of the second connecting shaft 15; the transmission shaft 4 is transversely set up and swing joint inside 2 downside of connecting seat, the outside fixedly connected with worm 17 of transmission shaft 4, and worm 17 is connected with turbine 16, 4 left side end fixedly connected with knobs 5 of transmission shaft.
The outer surfaces of the first knob 5 and the second knob 8 are provided with anti-skid grains; the outer side ends of the first locking screw 14 and the second locking screw 18 are fixedly connected with handles; the axis of the first connecting shaft 11 is vertically intersected with the central line of the screw 9; the guide hole in the guide hole seat 6 is a rectangular hole and is matched with the outside of the telescopic arm 12.
The utility model is used, when in use, the fixing hole 3 is firstly inserted into the upper connecting rod of the magnetic gauge stand 1 and is locked and fixed through the locking screw II 18, then one end of the sensor is inserted into the clamping hole of the clamping hole seat 13, then the locking screw I14 is locked to complete the fixation of the sensor, thereby ensuring the stability and reliability when in use, then the detection end of the fixing device and the sensor is close to the detection part by adjusting the upper connecting rod of the magnetic gauge stand 1, then the knob II 8 drives the screw rod 9 to rotate to drive the telescopic arm 12 to integrally move left and right, thereby the distance of the detection end of the sensor can be accurately adjusted, the detection accuracy is also improved, the knob I5 drives the transmission shaft 4 and the worm 17 to rotate, the turbine 16 can be driven to drive the connecting shaft II 15 and the guide hole seat 6 to integrally rotate, thereby meeting the requirement of the accurate detection of different directions of the sensor, the detection accuracy is further improved.
In the case of the control mode of the utility model, which is controlled by manual actuation or by means of existing automation techniques, the wiring diagram of the power elements and the provision of power are known in the art and the utility model is primarily intended to protect the mechanical means, so that the control mode and wiring arrangement are not explained in detail in the present invention.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
While there have been shown and described what are at present considered to be the fundamental principles of the utility model and its essential features and advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (5)
1. A sensor fixing device for a hydroelectric generating set stability test comprises a magnetic gauge stand (1) and is characterized by further comprising a connecting seat (2), a fixing hole (3), a transmission shaft (4), a first knob (5), a guide hole seat (6), an end cover (7), a second knob (8), a screw rod (9), an installation groove (10), a first connecting shaft (11), a telescopic arm (12), a clamping hole seat (13), a first locking screw (14), a second connecting shaft (15), a turbine (16), a worm (17) and a second locking screw (18);
a fixing hole (3) is formed in the center of the lower side of the magnetic gauge stand (1), and a mounting groove (10) is formed in the upper side of the magnetic gauge stand (1);
a second locking screw (18) is movably connected in a threaded hole formed in the right side of the fixing hole (3), and the fixing hole (3) is fixedly connected with a connecting rod on the upper side of the magnetic gauge stand (1) through the second locking screw (18);
the outer part of the left side of the guide hole seat (6) is movably connected inside the mounting groove (10), the left upper side of the guide hole seat (6) is fixedly connected with a first connecting shaft (11), and the outer part of the first connecting shaft (11) is movably connected in a hole arranged in the center of the upper side of the mounting groove (10);
the axis of the second connecting shaft (15) and the axis of the first connecting shaft (11) are positioned on the same straight line, the top of the second connecting shaft (15) is fixedly connected to the outer portion of the lower left side of the guide hole seat (6), and the second connecting shaft (15) is movably connected to a hole formed in the center of the lower side of the mounting groove (10);
the end cover (7) is fixedly connected to the opening at the left side of the guide hole seat (6);
the outer part of the left side of the screw rod (9) is movably connected in a central hole of the end cover (7), the end part of the left side of the screw rod (9) is fixedly connected with a second knob (8), and the right side of the screw rod (9) is positioned in the center of the inner part of the hole guide seat (6);
the left side of the telescopic arm (12) is transversely movably connected inside the guide hole seat (6), and a transverse threaded hole formed in the center of the telescopic arm (12) is connected with the screw rod (9);
the center of the left side of the clamping hole seat (13) is fixedly connected with the right side end part of the telescopic arm (12), and a locking screw I (14) is movably connected in a threaded hole formed in the right side of the clamping hole seat (13);
the turbine (16) is movably connected to the inner portion of the lower side of the connecting seat (2), and the center of the turbine (16) is fixedly connected with the outer portion of the lower side of the connecting shaft II (15);
transmission shaft (4) are horizontal setting and swing joint inside connecting seat (2) downside, transmission shaft (4) outside fixedly connected with worm (17), and worm (17) are connected with turbine (16), transmission shaft (4) left side tip fixedly connected with knob (5).
2. The sensor fixing device for the hydroelectric generating set stability test is characterized in that anti-skid grains are arranged on the outer surfaces of the first knob (5) and the second knob (8).
3. The sensor fixing device for the hydroelectric generating set stability test is characterized in that handles are fixedly connected to the outer side ends of the first locking screw (14) and the second locking screw (18).
4. The sensor fixing device for the hydroelectric generating set stability test is characterized in that the axis of the first connecting shaft (11) is perpendicularly intersected with the central line of the screw (9).
5. The sensor fixing device for the hydroelectric generating set stability test is characterized in that the guide hole in the guide hole seat (6) is a rectangular hole and is matched with the outer part of the telescopic arm (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120935101.3U CN215569056U (en) | 2021-05-04 | 2021-05-04 | Sensor fixing device for hydroelectric generating set stability test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120935101.3U CN215569056U (en) | 2021-05-04 | 2021-05-04 | Sensor fixing device for hydroelectric generating set stability test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215569056U true CN215569056U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120935101.3U Active CN215569056U (en) | 2021-05-04 | 2021-05-04 | Sensor fixing device for hydroelectric generating set stability test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215569056U (en) |
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2021
- 2021-05-04 CN CN202120935101.3U patent/CN215569056U/en active Active
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