CN202502106U - Sensor provided with pulse signal generating function - Google Patents
Sensor provided with pulse signal generating function Download PDFInfo
- Publication number
- CN202502106U CN202502106U CN201120532335XU CN201120532335U CN202502106U CN 202502106 U CN202502106 U CN 202502106U CN 201120532335X U CN201120532335X U CN 201120532335XU CN 201120532335 U CN201120532335 U CN 201120532335U CN 202502106 U CN202502106 U CN 202502106U
- Authority
- CN
- China
- Prior art keywords
- shell
- sensor
- optical
- electric module
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a sensor provided with pulse signal generating function. The sensor is mainly composed of a shell, a rear cover, a cable and a cable anti-folding joint. A measured rotating device synchronously drives a sensor shaft to rotate, the rotation of the shaft drives a grating sheet fixed on the shaft to rotate, and the grating sheet is provided with a certain number of measurement windows (namely, measurement holes), thereby enabling a photoelectric module with pulse signal generating function to generate a pulse signal when each measurement window passes; and the pulse signals are transmitted to a subsequent signal processing system of the sensor, and the signal processing system detects the pulse signals of the sensor so as to realize rotation speed or speed measurement of the measured rotating device. The sensor provided by the utility model has the advantages of convenient assembly, stable performance, excellent vibration resistance, high protection degree of the outer shell and other comprehensive mechanical performances, is applicable to rotation speed measurement of all types of rotating devices, and especially applicable to rotation speed measurement of wheels and axles of rail transportation vehicles in a working condition in which the sensor is installed in a suspended way.
Description
Technical field
The utility model relates to a kind of sensor, more particularly, is a kind of sensor with pulse signal generation function.
Background technology
Along with the development of sensor technology, require the Intelligence of Sensors degree increasingly high, volume is more and more littler, the weight requirement is more and more lighter, and the reliability and stability of sensor are increasingly high simultaneously.Being applied to the sensor with pulse signal generation function of field of track traffic, generally is as to rolling stock speed control signal being provided, and is the critical component in the rolling stock control system, and sensor is particularly important in reliability and stability.
At present, photoelectric sensor is generally adopted in the rolling stock velocity survey, and this kind sensor has characteristics such as rate accuracy high, low speed performance is good, easy for installation.
The shell of traditional photoelectric sensor and device seat generally adopt founding casting or gravitational casting, part wall thickness and Heavy Weight; Shafting structure is that single shaft holds supporting or the supporting of two deep groove ball bearing, and axle is difficult for assembling and dismounting; The O-ring seals patterns that adopt seal more between parts and the parts, do not have outside dust-proof mechanism; Optical-electric module and the no fixed mechanism of cable linkage section wiring are in free state; Optical-electric module adopts single window measurement and single threshold comparison signal treatment technology, and phase differential relies on and regulates through the mechanical location of adjusting two optical-electric modules between two paths of signals, and the output of optical-electric module signal adopts the printed board special connector to export indirectly.
But there is following point in above-mentioned existing technology:
The shell of traditional photoelectric sensor and bonnet generally adopt founding casting or gravitational casting; Part wall thickness and Heavy Weight; Limited the sensor application occasion; This sensor can not be applicable to the rolling stock that installing space is limited certainly, and the basic demand sensor must be implemented the suspension type installation under the situation that general installation is limit.
Shafting structure is that single shaft holds supporting or the supporting of two deep groove ball bearing, and axle is difficult for assembling and dismounting, and this shafting structure can not bear up the rolling stock axle head for a long time vibration and impact under the operating mode are installed, and fatigue damage takes place the sensor internal bearing easily, and the life-span is short.Because spool difficult assembling and dismounting, production efficiency is low and can not satisfy users on diversity.
The O-ring seals patterns that adopt seal more between parts and the parts, do not have outside dust-proof mechanism, and the O-ring seals sealing is prone to lose efficacy, and the sensor outer housing degree of protection is not high, and sensor lost efficacy easily.
The no fixed mechanism of optical-electric module and cable linkage section wiring is in free state, and signal wire is damaged by lenticular lenses easily or weighed wounded by other parts easily when assembling, and has the risk of sensor failure.
Optical-electric module adopts single window measurement and single threshold comparison signal treatment technology, exports jitter and is subject to outside electromagnetic interference.Phase differential relies on and regulates through the mechanical location of adjusting two optical-electric modules between two paths of signals; The phase differential precision can not guarantee, and under rolling stock application operating mode, the optical-electric module mechanical location is certain to change in time; Cause phase differential overproof, thereby cause sensor failure.The output of optical-electric module signal adopts the printed board special connector to export indirectly, has contact pin loose contact and loosening hidden danger, thereby causes sensor failure.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of above-mentioned existence; And a kind of sensor with pulse signal generation function is provided; Solve the above problem and shortcoming, have in light weightly, simple in structure, easy to assembly, stable and reliable for performance, have comprehensive mechanical performances such as splendid anti-vibrating and impact, shell protection grade simultaneously; Be applicable to the tachometric survey of all kinds of whirligigs, be particularly useful for the sensor suspension type measurement that realizes under the operating mode track traffic rolling stock wheel shaft rotating speed is installed.
The purpose of the utility model is accomplished through following technical scheme; It mainly is made up of the anti-folding of shell, bonnet, shaft components, lenticular lenses, optical-electric module, wire clamp, cable and cable joint, and shaft components comprises axle, dust cap, end cap, second rotary oil seal, double-row angular contact bal bearing, bearing locating sleeve, drawn cup needle roller bearing, bearing inner race, first rotary oil seal, core wheel, pressing plate, nut and second spring washer; Described double-row angular contact bal bearing is fixed in the inner chamber of the shell outside through the end cap that inner chamber is equipped with second rotary oil seal; Drawn cup needle roller bearing is assemblied in the enclosure inner chamber; Rely on first rotary oil seal location; Dust cap is pressed into a shaft shoulder place at last mounting flange position; Axle passes second rotary oil seal through bearing locating sleeve, bearing inner race, core wheel, lenticular lenses, pressing plate, relies on nut, the second spring washer fastening force to be fixed in the shell, and bearing locating sleeve, bearing inner race, core wheel, lenticular lenses, pressing plate also are installed on the axle through nut, the second spring washer fastening force simultaneously; Two small circular boss and the enclosure positioning hole corresponding matching and fixing of described optical-electric module through its bottom is on shell; And make lenticular lenses just in time from optical-electric module, pass through in the sensing element; Cable is tightened at the cable outlet mouth place of shell through the anti-folding of cable joint; The heart yearn of cable and the extension line of optical-electric module directly link together through scolding tin; Pass wire clamp and pass through plain washer, first spring washer and screw retention on shell, the bonnet that locking pad is housed is fastened on the shell through screw.
As preferably, described stopper arms is the optional part of sensor, only when the sensor mounting means be that suspension type is selected for use when installing, be fastened on the shell through screw.
As preferably, described shell and bonnet adopt thin-wall aluminum alloy die casting, and the sealing between bonnet and the shell realizes that through the bonnet O-ring seal sealing between end cap and the shell realizes through the end cap seal circle.
As preferably; Shaft components is designed to double-row angular contact bal bearing and drawn cup needle roller bearing supporting structure; Double-row angular contact bal bearing and bearing inner race are assemblied in the same step of axle through the bearing locating sleeve; Lenticular lenses is fixed on the end of axle at sensor internal through nut, second spring washer, core wheel and pressing plate, realizes that fully axle freely assembles.
As preferably, one side has been set up dust cap and end cap dust-proof mechanism in the outside of axle, and the sealing of dust cap and end cap is the V font groove clearance fit through two annulars, and the gap is full of grease.
As preferably, the extension line linkage section wiring in the enclosure of the heart yearn of described cable and optical-electric module is to be fixed on the shell inner cavity edge through wire clamp.
As preferably; Described optical-electric module is the module with the specific phase differential of maintenance between two pulse signals output and the two pulse signals; The phase differential size depends on the position of optical-electric module in shell, cooperates to fix with the enclosure positioning hole corresponding and optical-electric module is two small circular boss through the bottom.
As preferably, four extension lines of described optical-electric module directly are welded on the signal-processing board of optical-electric module the inside, and four holes passing on the plastic rear cover of optical-electric module directly extract.
The useful outcome table of the utility model is present:
1, shell and bonnet adopt thin-wall aluminum alloy die casting, have reduced sensor weight, make sensor can withstand the bad working environments that mounted sensor is installed, and have widened the sensor application field;
2, shaft components is designed to double-row angular contact bal bearing and drawn cup needle roller bearing supporting structure; Simplified the technology of the assembling of axle; Comprehensive mechanical performances such as the anti-vibrating and impact of raising product, shell protection grade; Prolonged sensor life-time, improved production efficiency and satisfied users on diversity;
3, adopted packing washer to realize flat seal between parts and the parts, and one side has been set up dust-proof mechanism in the outside of axle, prevented that thoroughly extraneous dust dirt from getting into, and effectively improved the sensor outer housing barrier propterty;
4, the extension line linkage section wiring in the enclosure of the heart yearn of cable and optical-electric module is to be fixed on the shell inner cavity edge through wire clamp, and cabling is evenly reasonable, avoids heart yearn to damage and weigh wounded, has improved sensor reliability;
5, the sensing element working mechanism is a photoelectric effect in the optical-electric module, through the multiwindow metering system, adopts the signal differential processing mode to carry out signal Processing, has improved the stability and the Electro Magnetic Compatibility of sensor pulse signal output;
6, optical-electric module is the module with the specific phase differential of maintenance between two pulse signals output and the two pulse signals; The phase differential size depends on the position of optical-electric module in shell; And being two small circular boss through the bottom, optical-electric module cooperates to fix with the enclosure positioning hole corresponding, therefore, even sensor is exposed under the abominable vibratory impulse operating mode; The position of optical-electric module in shell can not change yet, and guarantees sensor signal stability and reliability;
7, the optical-electric module extension line directly is welded on the signal-processing board of optical-electric module the inside, and four holes passing on the plastic rear cover of optical-electric module directly extract, and reduce indirect plug-in unit link, improve the reliability of signal output.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Label in the accompanying drawing is respectively: 1-shell, 2-wire clamp, 3-bonnet, 4-screw, 5-first spring washer, 6-plain washer; The locking pad of 7-, 8-second spring washer, 9-nut, 10-pressing plate, 11-core wheel, 12-lenticular lenses; The 13-optical-electric module, 14-first rotary oil seal, 15-signal-processing board, 16-plastic rear cover, the anti-folding of 17-cable joint, 18-cable; 19-bonnet O-ring seal, 20-drawn cup needle roller bearing, 21-bearing inner race, 22-bearing locating sleeve, 23-double-row angular contact bal bearing, 24-second rotary oil seal; The 25-dust cap, 26-grease, 27-end cap, 28-end cap seal circle, 29-axle, 30-stopper arms.
Embodiment
To combine accompanying drawing that the utility model is done detailed introduction below: shown in accompanying drawing 1; The utility model mainly is made up of shell 1, bonnet 3, shaft components, lenticular lenses 12, optical-electric module 13, wire clamp 2, cable 18, cable anti-folding joint 17 and stopper arms 30, and shaft components comprises spools 29, dust cap 25, end cap 27, second rotary oil seal 24, double-row angular contact bal bearing 23, bearing locating sleeve 22, drawn cup needle roller bearing 20, bearing inner race 21, first rotary oil seal 14, core wheel 11, pressing plate 10, nut 9 and second spring washer 8; Described double-row angular contact bal bearing 23 is fixed in shell 1 outside inner chamber through the end cap 27 that inner chamber is equipped with second rotary oil seal 24; Drawn cup needle roller bearing 20 is assemblied in the shell 1 inner inner chamber; Rely on first rotary oil seal, 14 location; Dust cap 25 is pressed into the shaft shoulder place at mounting flange position on the axle 29; Axle 29 passes second rotary oil seal 24 through bearing locating sleeve 22, bearing inner race 21, core wheel 11, lenticular lenses 12, pressing plate 10; Rely on nut 9, second spring washer, 8 fastening forces to be fixed in the shell 1, bearing locating sleeve 22, bearing inner race 21, core wheel 11, lenticular lenses 12, pressing plate 10 also are installed on the axle 29 through nut 9, second spring washer, 8 fastening forces simultaneously; Two small circular boss and the shell 1 inner positioning hole corresponding matching and fixing of described optical-electric module 13 through its bottom is on shell 1; And make lenticular lenses 12 just in time from optical-electric module 13, pass through in the sensing element; Cable 18 is tightened at the cable outlet mouth place of shell 1 through the anti-folding of cable joint 17; The extension line of the heart yearn of cable 18 and optical-electric module 13 directly links together through scolding tin; Pass wire clamp 2 and be fixed on the shell 1 through plain washer 6, first spring washer 5 and screw 4, the bonnet 3 that locking pad 7 is housed is fastened on the shell 1 through screw, and the sealing between bonnet 3 and the shell 1 simultaneously realizes through bonnet O-ring seal 19; Sealing between end cap 27 and the shell 1 realizes through end cap seal circle 28; Stopper arms 30 is the optional parts of sensor, only when the sensor mounting means is the suspension type installation, selects for use, is fastened on the shell 1 through screw.
Described shell 1 adopts thin-wall aluminum alloy die casting with bonnet 3, has reduced sensor weight, makes sensor can withstand the bad working environments that mounted sensor is installed, and has widened the sensor application field.
Shaft components is designed to double-row angular contact bal bearing 23 and drawn cup needle roller bearing 20 supporting structures; Double-row angular contact bal bearing 23 and bearing inner race 21 are assemblied in the same step of axle 29 through bearing locating sleeve 22; Lenticular lenses 12 is fixed on axle 29 ends at sensor internal through nut 9, spring washer 8, core wheel 11 and pressing plate 10, realizes that fully axle freely assembles, the convenient configuration that changes the dissimilar axle of sensor according to customer requirements; This shafting structure has comprehensive mechanical performances such as splendid anti-vibrating and impact, shell protection grade simultaneously; Prolong sensor life-time, also simplified the assembly technology of axle simultaneously, improved production efficiency.
One side has been set up dust cap 25 and end cap 27 dust-proof mechanisms in the outside of axle; Dust cap 25 is the V font groove clearance fit through two annulars with the sealing of end cap 27; The gap is full of grease 26, prevents that thoroughly extraneous dust dirt from getting into, and effectively improved the sensor outer housing barrier propterty.
The wiring of extension line linkage section in shell 1 of the heart yearn of described cable 18 and optical-electric module 13 is to be fixed on cavity edge in the shell 1 through wire clamp 2, and cabling is evenly reasonable, avoids heart yearn to damage and weigh wounded, improved sensor reliability.
The sensing element working mechanism is a photoelectric effect in the described optical-electric module 13, through the multiwindow metering system, adopts the signal differential processing mode to carry out signal Processing, has improved the stability and the Electro Magnetic Compatibility of sensor pulse signal output.
Described optical-electric module 13 is the modules with the specific phase differential of maintenance between two pulse signals output and the two pulse signals; The phase differential size depends on the position of optical-electric module 13 in shell 1; And being two small circular boss through the bottom, optical-electric module 13 cooperates to fix with shell 1 inner positioning hole corresponding; Therefore; Even sensor is exposed under the abominable vibratory impulse operating mode, the position of optical-electric module 13 in shell can not change yet, and guarantees sensor signal stability and reliability.
13 4 extension lines of described optical-electric module directly are welded on the signal-processing board 15 of optical-electric module 13 the insides, and four holes passing on the plastic rear cover 16 of optical-electric module 13 directly extract, and reduce indirect plug-in unit link, improve the reliability of signal output.
Except that the foregoing description, all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (8)
1. sensor with pulse signal generation function; Mainly be made up of shell (1), bonnet (3), shaft components, lenticular lenses (12), optical-electric module (13), wire clamp (2), cable (18) and cable anti-folding joint (17), it is characterized in that: shaft components comprises axle (29), dust cap (25), end cap (27), second rotary oil seal (24), double-row angular contact bal bearing (23), bearing locating sleeve (22), drawn cup needle roller bearing (20), bearing inner race (21), first rotary oil seal (14), core wheel (11), pressing plate (10), nut (9) and second spring washer (8); Described double-row angular contact bal bearing (23) is fixed in the inner chamber of shell (1) outside through the end cap (27) that inner chamber is equipped with second rotary oil seal (24); Drawn cup needle roller bearing (20) is assemblied in the inner inner chamber of shell (1); Rely on first rotary oil seal (14) location; Dust cap (25) is pressed into the shaft shoulder place that axle (29) is gone up the mounting flange position; Axle (29) passes second rotary oil seal (24) through bearing locating sleeve (22), bearing inner race (21), core wheel (11), lenticular lenses (12), pressing plate (10); Rely on nut (9), second spring washer (8) fastening force to be fixed in the shell (1), bearing locating sleeve (22), bearing inner race (21), core wheel (11), lenticular lenses (12), pressing plate (10) also are installed on the axle (29) through nut (9), second spring washer (8) fastening force simultaneously; Two small circular boss and shell (1) the inner positioning hole corresponding matching and fixing of described optical-electric module (13) through its bottom is on shell (1); And make lenticular lenses (12) just in time from optical-electric module (13), pass through in the sensing element; Cable (18) is tightened at the cable outlet mouth place of shell (1) through cable anti-folding joint (17); The extension line of the heart yearn of cable (18) and optical-electric module (13) directly links together through scolding tin; Pass wire clamp (2) and be fixed on the shell (1) through plain washer (6), first spring washer (5) and screw (4), the bonnet (3) that locking pad (7) are housed is fastened on the shell (1) through screw.
2. the sensor with pulse signal generation function according to claim 1; It is characterized in that: described shell (1) and bonnet (3) adopt thin-wall aluminum alloy die casting; Sealing between bonnet (3) and the shell (1) realizes through bonnet O-ring seal (19), is tightly connected through end cap seal circle (28) between end cap (27) and the shell (1).
3. the sensor with pulse signal generation function according to claim 1; It is characterized in that: shaft components is designed to double-row angular contact bal bearing (23) and drawn cup needle roller bearing (20) supporting structure; Double-row angular contact bal bearing (23) and bearing inner race (21) are assemblied in the same step of axle (29) through bearing locating sleeve (22); Lenticular lenses (12) is fixed on the end of axle (29) at sensor internal through nut (9), second spring washer (8), core wheel (11) and pressing plate (10), constitutes the free assembly structure of axle.
4. the sensor with pulse signal generation function according to claim 1; It is characterized in that: one side has been set up dust cap (25) and end cap (27) dust-proof mechanism in the outside of axle; Dust cap (25) is the V font groove clearance fit through two annulars with the sealing of end cap (27), and the gap is full of grease (26).
5. the sensor with pulse signal generation function according to claim 1 is characterized in that: the wiring of extension line linkage section in shell (1) of the heart yearn of described cable (18) and optical-electric module (13) is to be fixed on cavity edge in the shell (1) through wire clamp (2).
6. the sensor with pulse signal generation function according to claim 1; It is characterized in that: described optical-electric module (13) is the module with the specific phase differential of maintenance between two pulse signals output and the two pulse signals; The phase differential size depends on the position of optical-electric module (13) in shell (1), is connected with the inner positioning hole corresponding matching and fixing of shell (1) and optical-electric module (13) is two small circular boss through the bottom.
7. the sensor with pulse signal generation function according to claim 1; It is characterized in that: (13) four extension lines of described optical-electric module directly are welded on the signal-processing board (15) of optical-electric module (13) the inside, and four holes passing on the plastic rear cover (16) of optical-electric module (13) directly extract.
8. the sensor with pulse signal generation function according to claim 1 is characterized in that: when the sensor mounting means was the suspension type installation, stopper arms (30) was fastened on the shell (1) through screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120532335XU CN202502106U (en) | 2011-12-16 | 2011-12-16 | Sensor provided with pulse signal generating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120532335XU CN202502106U (en) | 2011-12-16 | 2011-12-16 | Sensor provided with pulse signal generating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502106U true CN202502106U (en) | 2012-10-24 |
Family
ID=47038717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120532335XU Expired - Fee Related CN202502106U (en) | 2011-12-16 | 2011-12-16 | Sensor provided with pulse signal generating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502106U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907705A (en) * | 2017-10-19 | 2018-04-13 | 宁波中车时代传感技术有限公司 | Traffic hall speed sensor and its manufacture method |
| CN107942091A (en) * | 2017-10-19 | 2018-04-20 | 宁波中车时代传感技术有限公司 | A kind of traffic hall speed sensor and its manufacture method |
| CN111492249A (en) * | 2017-12-22 | 2020-08-04 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Rotational speed sensor with improved resolution and multiple switching thresholds |
| CN114734245A (en) * | 2022-06-10 | 2022-07-12 | 宁波中车时代传感技术有限公司 | Shaft end photoelectric rotating speed sensor for rail transit and manufacturing method |
| CN114778881A (en) * | 2022-06-21 | 2022-07-22 | 宁波中车时代传感技术有限公司 | Photoelectric rotation speed sensor |
-
2011
- 2011-12-16 CN CN201120532335XU patent/CN202502106U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907705A (en) * | 2017-10-19 | 2018-04-13 | 宁波中车时代传感技术有限公司 | Traffic hall speed sensor and its manufacture method |
| CN107942091A (en) * | 2017-10-19 | 2018-04-20 | 宁波中车时代传感技术有限公司 | A kind of traffic hall speed sensor and its manufacture method |
| CN111492249A (en) * | 2017-12-22 | 2020-08-04 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Rotational speed sensor with improved resolution and multiple switching thresholds |
| CN114734245A (en) * | 2022-06-10 | 2022-07-12 | 宁波中车时代传感技术有限公司 | Shaft end photoelectric rotating speed sensor for rail transit and manufacturing method |
| CN114778881A (en) * | 2022-06-21 | 2022-07-22 | 宁波中车时代传感技术有限公司 | Photoelectric rotation speed sensor |
| CN114778881B (en) * | 2022-06-21 | 2022-09-27 | 宁波中车时代传感技术有限公司 | Photoelectric rotation speed sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202502106U (en) | Sensor provided with pulse signal generating function | |
| US10030804B2 (en) | Inner detecting device for subsea oil and gas pipeline | |
| CN108609028A (en) | A kind of motor-car gauge-changeable bogie used for rail vehicle | |
| CN204154733U (en) | For the Hexamermis spp Hall revolution speed transducer of locomotive shaft-end | |
| CN102297651A (en) | Rotation angle sensor | |
| CN207766084U (en) | A kind of coupling structure and motor for motor encoder | |
| CN102102975B (en) | Suspension gap sensor for medium-low-speed maglev train | |
| CN201057519Y (en) | Optoelectronic floater tracing type liquid level monitoring device | |
| CN203941183U (en) | Six passage locomotive shaft-end speed probes | |
| CN208833795U (en) | A kind of hall speed sensor | |
| CN2906557Y (en) | Contact-less photoelectric train speed sensor | |
| CN103196471B (en) | Modularized joint displacement sensor applied to robot | |
| CN102426263B (en) | Photoelectric revolution speed sensor used in rail transit | |
| CN216668750U (en) | Dial type photoelectric sensor | |
| CN107387575B (en) | Sensing axle box-bearing unit for supporting railway axles | |
| CN205278129U (en) | Encoder connector | |
| CN201225396Y (en) | Transfer case of tractor | |
| CN202083379U (en) | Wriggle detecting device | |
| CN201373740Y (en) | Built-in and plug-in type gate opening detector | |
| CN202195823U (en) | Contact explosion-proof encoder | |
| CN220508575U (en) | Wire rope detection device of large-scale equipment in harbour | |
| CN208833796U (en) | A kind of locomotive speed sensor | |
| CN219533180U (en) | Shaft end speed sensor installation kit | |
| CN216643024U (en) | Special input gear shaft for gear box | |
| CN210014923U (en) | Steering engine testing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20131216 |