CN209102754U - A kind of diesel engine speed sensor calibration device - Google Patents
A kind of diesel engine speed sensor calibration device Download PDFInfo
- Publication number
- CN209102754U CN209102754U CN201821724924.6U CN201821724924U CN209102754U CN 209102754 U CN209102754 U CN 209102754U CN 201821724924 U CN201821724924 U CN 201821724924U CN 209102754 U CN209102754 U CN 209102754U
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- diesel engine
- engine speed
- calibration device
- sensor
- sensor calibration
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Abstract
The utility model belongs to nuclear power station emergency service technique field, and in particular to a kind of diesel engine speed sensor calibration device.The device is driven band 2 component of tooth flywheel of diesel engine to 1500rpm by reverse box 7 using variable-frequency speed regulating synchronous motor, rotating speed measuring sensor is installed on adjustable pitch sensor mounting block 1, observe speed probe output waveform by oscillograph with measuring signal intensity and waveform, come verify speed probe to be measured performance and optimal mounting distance.The device is easy to use, can quickly change the mounting height of sensor, and the mounting distance with flywheel, with simple, easy to use, the low in cost advantage of structure.
Description
Technical field
The utility model belongs to nuclear power station emergency set service technique field, and in particular to a kind of Emergency diesel revolving speed biography
Sensor calibration equipment.
Background technique
It is controlled currently, nuclear power station-service Emergency diesel is all made of electronic speed regulation mode, rotating speed measuring sensor is using suddenly
Your element, sensor output signal strength and its top and the flywheel surface distance being measured are inversely proportional, according to design requirement, one
As the clearance requirement on sensor and flywheel surface be no more than 0.75mm.In nuclear power plant's diesel engine sensor mounting and adjusting process
In, since flywheel is in a closed chamber, sensor can not be measured directly at the top of verificating sensor and be flown after being installed
Gap between wheel, and flywheel operating revolving speed is up to 1500rpm or so, if installation gap is larger, will lead to output letter
Number intensity is too low, causes Diesel Engine Digital Electronic Speed System job insecurity, if installation gap is too small, it is likely that operates in diesel engine
Rotating speed measuring sensor is damaged in the process, leads to equipment damage.Therefore need to design a kind of nuclear power station-service diesel engine speed sensing
Device calibration equipment: for verifying output signal strength and stability under diesel engine speed sensor diesel engine rated speed, with
And the best mounting distance of test verifying rotating speed measuring sensor.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of diesel engine speed sensor calibration
Device.
The technical solution of the utility model is as follows:
A kind of diesel engine speed sensor calibration device, including structural framing, adjustable pitch sensor fixing structure, band tooth fly
Wheel, variable-frequency speed regulating synchronous motor, reverse box, driving shaft, driving gear, driven shaft and driven gear；Structural framing is
" day " glyph framework structure is the structural support of entire experimental provision；Reverse box is fixedly mounted on the centre of structural framing
On partition, variable-frequency speed regulating synchronous motor is connected with driving gear by driving shaft, and driven shaft is connected with driven gear, driving gear
It is located in reverse box with driven gear, the two is meshed；The other end of driven shaft is connected with band tooth flywheel, to pass through change
Frequency speed-regulation synchronous motor assembling has driven band tooth flywheel to rotate；Adjustable pitch sensor fixing structure is mounted on the outside of structural framing, including
Bracket regulating arm, sensor installation seat and frame support rails；Frame support rails are mounted on structural framing outer wall, frame support rails
Through-hole across bracket regulating arm top, is fixed by screw；One end of bracket regulating arm is equipped with sensor installation seat.
The shield for being equipped with metal on the structural framing top, in the external formation box body shape structure with tooth flywheel.
The adjustable pitch sensor fixing structure is mounted on protection cover outer wall.
The center line and the tooth water with tooth flywheel that the installation site of the sensor installation seat makes speed probe to be measured
Flat centerline height is consistent.
The device further includes bearing housing, and for cylindric body structure, bearing housing is mounted on structural framing intermediate bulkhead top,
Driven shaft is located in bearing housing.
The driving gear and driven gear are a pair of of angle into 90 degree of bevel gear.
The speed probe to be measured by being threadably mounted on sensor installation seat, by be threaded into screw out adjust to
Survey the mounting distance between speed probe and tooth with tooth flywheel.
The transmission ratio of the driving gear and driven gear is 1:1.
The utility model has the beneficial effects that:
The diesel engine speed sensor calibration device of the utility model can be used in verifying diesel engine speed sensor diesel oil
Output signal strength and stability under machine rated speed, and the best mounting distance of test verifying rotating speed measuring sensor.
Have the advantages that structure is simple, convenient and practical, compact-sized, revolving speed is adjustable, distance can be quick between flywheel and rotation sensor
It adjusts.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram of internal structure of reverse box in Fig. 1；
Fig. 3 is adjustable pitch sensor fixing structure schematic diagram in Fig. 1；
In figure: 1- adjustable pitch sensor fixing structure, 2- band tooth flywheel, 3- bearing chamber, 4- shield, 5- structural framing,
6- variable-frequency speed regulating synchronous motor, 7- reverse box, 8- driving shaft, 9- driving gear, 10- driven shaft, 11- driven gear；1-1
Bracket regulating arm, 1-2 sensor installation seat, 1-3 frame support rails.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.
Present embodiments provide a kind of diesel engine speed sensor calibration device, including structural framing 5, adjustable pitch sensor
Mounting structure 1, band tooth flywheel 2, bearing chamber 3, shield 4, variable-frequency speed regulating synchronous motor 6 and reverse box 7；
As shown in Figure 1, structural framing 5 is " day " glyph framework, it is the structural support of entire experimental provision；Reverse box
7 are fixedly mounted on the lower partition of 5 lower portion of structural framing by screw, and internal structure is as shown in Fig. 2, bearing chamber 3 is pacified
Mounted in the partition top of structural framing 5；Variable-frequency speed regulating synchronous motor 6 is connected with driving gear 9 by driving shaft 8, and bearing chamber 3 is logical
It crosses driven shaft 10 and is connected with driven gear 11, driving gear 9 and driven gear 11 are located in reverse box 7, and the two is meshed,
Driving gear 9 and driven gear 11 are a pair of of angle into 90 degree of bevel gear；The top of bearing chamber 3 is provided with tooth flywheel 2, axis
The 10 upper end connecting band tooth flywheel 2 of driven shaft in room 3 is held, so that it driven to rotate；Outside with tooth flywheel 2 is provided with cabinet
The shield 4 of type is mounted on the top surrounding of structural framing 5, and when for ensuring that band tooth flywheel 2 rotates, no foreign matter enters band
2 region of tooth flywheel, prevents equipment damage or injury to personnel.
Adjustable pitch sensor fixing structure 1 is mounted on 4 outer wall of structural framing 5 or shield, passes for adjusting revolving speed to be measured
Sensor with the distance between tooth flywheel 2；The structure of adjustable pitch sensor fixing structure 1 is as shown in figure 3, include bracket regulating arm
1-1, sensor installation seat 1-2 and frame support rails 1-3；Frame support rails 1-3 is mounted on 5 outer wall of shield 4 or structural framing
On, frame support rails 1-3 passes through bracket regulating arm 1-1 and passes through upper through-hole, and bracket regulating arm 1-1 eye bracket is supported
The direction of bar 1-3 moves up and down position；One end of bracket regulating arm 1-1 is equipped with sensor installation seat 1-2, to be measured for installing
Speed probe is passed, so that the center line of speed probe to be measured is concordant with the upper surface with tooth flywheel 2.Bracket regulating arm 1-1
It can move up and down the vertical position for adjusting sensor installation seat 1-2, speed probe to be measured is passed by being threadably mounted at revolving speed
It on sensor, is screwed out by being threaded into, adjusts speed probe and the mounting distance with tooth flywheel.
The device of the present embodiment passes through reverse box 7 for diesel engine when in use, using variable-frequency speed regulating synchronous motor
Band 2 component of tooth flywheel drives to 1500rpm, rotating speed measuring sensor is installed on adjustable pitch sensor mounting block 1, by showing
Wave device observes speed probe output waveform with measuring signal intensity and waveform, come verify speed probe to be measured performance and
Optimal mounting distance.
The device is easy to use, can quickly change the mounting height of sensor, and the mounting distance with flywheel；It is synchronous
Driving motor is coupled by shaft coupling with driving shaft, is transmitted by the power of driving gear and driven gear, can be changed power
90 degree of outbound course, the band tooth flywheel of driving speed probe calibration equipment runs at high speed, transmission ratio 1:1.The device energy
It is enough in the best mounting distance and signals of rotational speed sensor intensity of test verifying rotating speed measuring sensor, completes speed probe
Verifying work.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If these modifications and variations belong to the claims of the present invention and its equivalent technology range it
Interior, then the utility model is also intended to include these modifications and variations.
Claims (8)
1. a kind of diesel engine speed sensor calibration device, it is characterised in that: pacify including structural framing (5), adjustable pitch sensor
Assembling structure (1), band tooth flywheel (2), variable-frequency speed regulating synchronous motor (6), reverse box (7), driving shaft (8), driving gear
(9), driven shaft (10) and driven gear (11)；
Structural framing (5) is " day " glyph framework structure, is the structural support of entire experimental provision；Reverse box (7) is fixed
It is mounted on the intermediate bulkhead of structural framing (5), variable-frequency speed regulating synchronous motor (6) is connected with driving gear by driving shaft (8)
(9), driven shaft (10) is connected with driven gear (11), driving gear (9 and driven gear (11) be located in reverse box (7),
The two is meshed；The other end of driven shaft (10) is connected with band tooth flywheel (2)；
Adjustable pitch sensor fixing structure (1) is mounted on structural framing (5) outer wall, including bracket regulating arm (1-1), sensor peace
Fill seat (1-2) and frame support rails (1-3)；Frame support rails (1-3) are mounted on structural framing (5) outside, frame support rails
(1-3) passes through the through-hole on the top bracket regulating arm (1-1), is fixed by screw；One end of bracket regulating arm (1-1) is equipped with biography
Sensor mounting base (1-2).
2. a kind of diesel engine speed sensor calibration device as described in claim 1, it is characterised in that: the structural framing
(5) top is equipped with shield (4), forms box body shape structure in external with tooth flywheel (2).
3. a kind of diesel engine speed sensor calibration device as claimed in claim 2, it is characterised in that: the adjustable pitch sensing
Device mounting structure (1) is mounted on shield (4) outer wall.
4. a kind of diesel engine speed sensor calibration device as described in claim 1, it is characterised in that: the sensor installation
The installation site of seat (1-2) makes the center line of speed probe to be measured concordant with the upper surface with tooth flywheel (2).
5. a kind of diesel engine speed sensor calibration device as claimed in claim 1 or 2, it is characterised in that: further include bearing
Room (3), bearing chamber (3) are mounted on structural framing (5) partition top, and driven shaft (10) is located in bearing chamber (3).
6. a kind of diesel engine speed sensor calibration device as described in claim 1, it is characterised in that: by revolution speed sensing to be measured
Device adjusts speed probe to be measured and with tooth by being threadably mounted on sensor installation seat (1-2), by being threaded into screw out
The mounting distance of flywheel (2).
7. a kind of diesel engine speed sensor calibration device as described in claim 1, it is characterised in that: the driving gear
It (9) is 1:1 with the transmission ratio of driven gear (11).
8. a kind of diesel engine speed sensor calibration device as described in claim 1, it is characterised in that: the driving gear
(9) and driven gear (11) is a pair of of angle into 90 degree of bevel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821724924.6U CN209102754U (en) | 2018-10-24 | 2018-10-24 | A kind of diesel engine speed sensor calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821724924.6U CN209102754U (en) | 2018-10-24 | 2018-10-24 | A kind of diesel engine speed sensor calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209102754U true CN209102754U (en) | 2019-07-12 |
Family
ID=67156341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821724924.6U Active CN209102754U (en) | 2018-10-24 | 2018-10-24 | A kind of diesel engine speed sensor calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209102754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114428179A (en) * | 2020-09-29 | 2022-05-03 | 中国石油化工股份有限公司 | Off-line simulation inspection method and system for rotating speed probe |
-
2018
- 2018-10-24 CN CN201821724924.6U patent/CN209102754U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114428179A (en) * | 2020-09-29 | 2022-05-03 | 中国石油化工股份有限公司 | Off-line simulation inspection method and system for rotating speed probe |
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