CN2913706Y - Hydraulic oil cylinder displacement sensor inside lifting eye - Google Patents
Hydraulic oil cylinder displacement sensor inside lifting eye Download PDFInfo
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- CN2913706Y CN2913706Y CN 200520127599 CN200520127599U CN2913706Y CN 2913706 Y CN2913706 Y CN 2913706Y CN 200520127599 CN200520127599 CN 200520127599 CN 200520127599 U CN200520127599 U CN 200520127599U CN 2913706 Y CN2913706 Y CN 2913706Y
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- hanger
- main shaft
- displacement transducer
- rotary main
- rotor
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Abstract
The utility model relates to a hydraulic cylinder type displacement transducer inside a shackle. The displacement transducer comprises a displacement transducer rotary component, a displacement transducer measurement component and springs. The displacement transducer rotary component is connected with a piston; the springs control movement of the piston through being matched & connected with the displacement transducer rotary component; the displacement transducer measurement component works with the displacement transducer rotary component, so as to measure displacement travel of the piston. The utility model can resolve technical problems in prior arts, such as a plurality of problems in actual application of external displacement transducers; meanwhile, the utility model can eliminate defects in shortage of internal divergence measurement devices in a hydraulic cylinder with shackle a shackle. The utility model comprises an internal displacement transducer in a hydraulic cylinder with a shackle, so that measurement accuracy can be improved and both installation and maintenance can be more convenient.
Description
Technical field:
The utility model relates to a kind of displacement sensing apparatus of measuring hydraulic jack inner carrier stroke, relate in particular to a kind of built-in displacement transducer in including the hydraulic jack of hanger, itself and hydraulic jack are used and operate on it the detection device of control.
Background technique:
Along with the continuous development of water conservancy, in all kinds of hydraulic structures of water conservancy, hydroelectric project, according to functional requirement, it is different to be provided with performance, and the various gates that pattern is different are to satisfy the needs of various operating conditionss.Wherein, the emergency gate in the buildings such as flood discharge, generating diversion, navigation and the operational reliability of main gate are directly connected to the safety and the benefit of engineering, require high to the equipment that opens and closes gate; On the other hand, the scale of these emergency gates and main gate becomes increasing along with the continuous increase of project scale, and operation management person has also proposed more and more higher requirement to the automatization level of operation control system.The gatage detection device is as a main supplementary equipment that opens and closes operation control system, its performance and quality are very big to the reliable operation influence of gate, carry out in the system of automatic regulating gate keying at follow procedure, particularly two Hanging Point Gate open and close in the system that the synchronization control requirement is arranged, the gatage detection device is exactly the knowledge of control system, and its significance is self-evident especially.
Hydraulic jack in industry manufacturing and large hydraulic machinery equipment such as smelter, the industrial fields such as various gates of harbour ship lock, Hydraulic and Hydro-Power Engineering have obtained using widely, the displacement information of hydraulic-mechanic system plays an important role to its operation control.
External displacement sensing apparatus of Shi Yonging or limit switch device because wire rope or spacing instrument are exposed to the cylinder body outside, were subjected to the external environmental condition interference bigger in the past, and measuring accuracy is not high, and metrical infromation is discontinuous, makes whole hydraulic work system instability; Particularly poor in environmental conditions, wire rope is subjected in the hydraulic engineering of current electuary, and the external displacement transducer is more vulnerable to damage, causes equipment normally to move.
In simple gate, adopt the straight formula displacement transducer of external, exist to be subjected to the external environmental condition interference bigger, measuring accuracy is not high, and metrical infromation is discontinuous, makes the unsettled shortcoming of whole hydraulic work system.
In the gate of complexity, promptly relatively large gate or twin-tub/pair suspension centre hydraulic pressure opens and closes in the gate, adopts external angle transducer or external linear transducer.All there is the shortcoming of above-mentioned external in two kinds of sensors, simultaneously, the external angle transducer adopts angular encoder, measure and data processing by the angle of regulating gate aperture, but owing to change when little or gate closure when still having the slit when the gate angle, the precision of sensor is not high, can't accomplish accurately control and measurement, simultaneously because the easier reduction that causes precision of vibration in the gate running.The external linear transducer adopts the auxiliary oil cylinder project organization, and equally also there is the not high problem of above-mentioned precision in it.In addition, it adopts Linear displacement transducer, need carry out just obtaining concrete displacement data after the signal conversion, the process complexity.The inconsistent problem that often causes poor synchronization of the cooperation of major and minor oil cylinder causes the damage and the danger of gate and sensor.Install at the scene and debugging because the external sensor needs to carry out according to concrete gate at the scene, often bring the complexity and the problem that expends great amount of manpower and material resources and time of Installation and Debugging process, need repeatedly the aperture gate to debug simultaneously, for large-scale gate, engineering is and is great.Because there is above-mentioned technical problem in the external sensor, adopts built-in displacement transducer to carry out gatage now and measure and control.
For built-in hydraulic cylinder displacement sensing device, patent documentation: patent No. ZL 01263049.7 and application number are 00108748.7 to have described built-in positioning device respectively, but its be provided with position: patent No. ZL 01263049.7 and application number at (1) spring is all spring to be placed in the housing in two parts of documents of 00108748.7, the defective that has two aspects so is set: on the one hand, because spring is placed in the housing, the shape and size of spring are subjected to the restriction of housing size, if improve the range of sensing device, just must strengthen housing; Housing increases to cooperate to the requirement of withstand voltage of housing, with cylinder sizes etc. and will bring a series of technical problem.On the other hand because spring belongs to the easily damaged parts of sensing device, and the life-span of sensing device mainly is subjected to the restriction of spring life, and spring is changed then very difficult when impaired.Must the long period stop the work of detected oil cylinder, and after finishing the operations such as casing of oil cylinder release, oil removing, dismounting sensing device, just can carry out spring and change, the mainteinance repair work of whole sensor device is very complicated, and using to the user makes troubles.(2) rotary bearing in the rotating part of sensor: patent No. ZL 01263049.7 technological scheme is installed on two side flanges, flange is subject to interior pressure (interior pressure can up to 30MPa) effect and produces distortion, influence the rotating mechanism of main shaft, or cause surface friction drag, thereby the working life of reducing spring and whole sensing device.Application number is that the rotation in 00108748.7 technological scheme is to adopt a thrust ball bearing, belongs to single-point and supports rotating mechanism, and it is relative vertical to require bearing and rotor or housing side to remain, and the main shaft stability of rotation is relatively poor; Simultaneously because the seal ring of this invention is arranged on housing one side, it is poor to produce unbalanced pressure, causes the friction between rotor and housing side easily, makes the not smooth or spring restoring moment of rotor rotation can't resist frictional force, causes detection malfunctioning.(3) setting of the seal ring of sensor: there are technical problem in the oil sealing of above two inventions or the setting of title seal ring.Because seal ring belongs to the easily damaged parts of this device, the seal ring in patent No. ZL 01263049.7 technological scheme is placed in two side flanges, in case seal ring is impaired, must removes whole device and change, and workload is big, influences the user and uses.
In patent documentation, patent No. ZL03207197.3, patent No. ZL01263049.7, patent No. ZL00230128.8 and application number 03153106.7, application number 00108748.7 has been described the built-in hydraulic cylinder displacement sensing device that is installed in the housing respectively, and all there is following defective in all said apparatus: the built-in displacement sensing apparatus of band housing can only be installed in the top (hydraulic jack rodless cavity top or pistons end) of hydraulic jack.Yet all be provided with at two ends on the hydraulic jack of hanger and can't settle this type displacement sensing apparatus, and this type of (double shackle) hydraulic jack is used very extensive in industry, engineering field, the external displacement sensing apparatus of existing employing, still detect performance, quality, secure context aspect affected by environment and all have bigger defective, particularly have in the system of synchronization control requirement at the double shackle hydraulic hoist, the significance of built-in hydraulic cylinder displacement transducer is just fairly obvious.
The model utility content:
In order to solve above-mentioned technical problem of the prior art, as the problems in actual applications that the external displacement transducer is brought, the while is in order to solve the defective that lacks built-in aperture detection device in including the hydraulic jack of shackle structure.The utility model adopts built-in displacement transducer in including the hydraulic jack of hanger, make measuring accuracy higher, and installation and maintenance are more convenient.
For realizing the model utility purpose, the technological scheme of being taked is:
A kind of hydraulic cylinder displacement transducer that places in the hanger, described hydraulic jack comprises: hydraulic jack cylinder body 1, hanger 8, piston 18 and displacement transducer; Described hanger 8 is fixed on hydraulic jack 1 one ends.
Described displacement transducer comprises displacement transducer Runner assembly, displacement sensor assembly and spring 14.
Described displacement transducer Runner assembly is connected with piston 18, described spring 14 by with the motion of the control piston 18 that is connected of displacement transducer Runner assembly, the displacement stroke of described displacement sensor assembly and displacement transducer Runner assembly conjunction measuring piston 18.
The described displacement transducer Runner assembly that includes rotor 9 is fixedly installed in the described hanger 8.
In concrete application, described displacement transducer Runner assembly also comprises rotary main shaft 6 and hawser 17, and described rotor 9 is fixedlyed connected with rotary main shaft 6 and become one; Described hawser 17 1 ends are wrapped on the described rotor 9, and the other end is connected with the piston 18 of hydraulic jack 1; The described displacement transducer Runner assembly that includes rotor 9, rotary main shaft 6 and hawser 17 is fixedly installed in the described hanger 8;
Described displacement sensor assembly comprises encoder 5; Described encoder 5 is connected with described rotary main shaft 6; Described displacement sensor assembly and spring 14 are arranged on outside the described hanger 8.It is described that to place the measured displacement ranges of hydraulic cylinder displacement transducer in the hanger 8 be 0-20 rice.
For solving the support problem of displacement transducer, described displacement transducer also comprises the displacement transducer supporting component, described supporting component comprises a side direction flange 7 at least, described side direction flange 7 is along a side that is fixed on described hanger 8 perpendicular to the direction of rotary main shaft 6, and described rotary main shaft 6 runs through described side direction flange 7.
In order to make the displacement transducer and the hanger 8 that comprise each several part closely cooperate, in described hanger 8, offer rotor hole 24, flange hole 23 and wire guide 26, described rotor 9 is installed in the rotor hole 24, be provided with side direction flange 7 in the described flange hole 23, described hawser 17 is by described wire guide 26.
Described rotor hole 24, flange hole 23 and wire guide 26 are separately positioned on hanger 8 bodies, and described each aperture, hole and cloth controlled position are adaptive with the assembly that is arranged on wherein.
Described rotor hole 24, flange hole 23 and wire guide 26 be shaped as a kind of in round or polygonal.
In specific embodiment 1, described sensor comprises a side direction flange 7, and described side direction flange 7 is along a side that is fixed on described hanger 8 perpendicular to the direction of rotary main shaft 6, and described rotary main shaft 6 runs through described side direction flange 7; Be installed with a guard box a (4) in the outside of described side direction flange 7; described encoder 5 is arranged in the described guard box a (4); described encoder 5 is fixed on described side direction flange 7 outsides by elastic support 21, and encoder 5 is connected with described rotary main shaft 6.
Opposite side external stability on the edge perpendicular to the hanger 8 of described rotary main shaft 6 is equipped with guard box b (20), and described spring 14 1 ends are fixed in the described guard box b (20) by link, and the other end is fixed on the spring shaft core 13; Described spring shaft core 13 adopts double key system to be connected with described rotary main shaft 6.
In specific embodiment 2 with in using, in described hanger 8, offer rotor hole 24, flange hole 23,25 and wire guide 26 respectively, described rotor 9 is installed in rotor 24 holes, be provided with side direction flange 7,7 ' in the described flange hole 23,25, described hawser 17 is by described wire guide 26.Described rotor hole 24, flange hole 23,25 and wire guide 26 are separately positioned on hanger 8 bodies, and described each aperture, hole and cloth controlled position are adaptive with the assembly that is arranged on wherein.Being shaped as of described rotor hole, flange hole and wire guide is round.
Described displacement transducer Runner assembly includes rotor 9, rotary main shaft 6 and hawser 17.
Described rotor 9 is fixedlyed connected with rotary main shaft 6 and become one: described rotary main shaft 6 is installed in the described hanger 8 by angular contact ball bearing 12 rotations.Described rotor 9 and rotary main shaft 6 are bolted to connection, and make described rotor 9 and rotary main shaft 6 become a member.Described device also comprises a bearing unit, and described bearing unit is socketed to form by bearing support 10, interval axle sleeve 11 and angular contact ball bearing 12 3 parts; Described rotor 9 and rotary main shaft 6 are connected in one by transition fit and described bearing unit.
Described hawser 17 places hydraulic jack and hanger inside for wire rope and described wire rope 17.One end of described wire rope 17 is fixed on the cylindrical shell of described rotor 9, and is wrapped in the groove of rotor 9 outer rims, and described wire rope 17 is by described wire guide 26, and the other end of wire rope 17 links to each other with piston 18 by the connector that can rotate freely.The described connector that rotates freely is a wiring unit, and its structure is: wiring unit 2 is socketed to form by two angular contact ball bearings 28,28 ', coupling bolt 29, end ring 30, bearing pressure pad 31, circlip for hole 33, spring washer 32; Described wiring unit 2 is fixedlyed connected with described piston 18 by described coupling bolt 29; Described wire rope 17 is connected by the disk of pin with wiring unit 2.
The described displacement transducer Runner assembly that includes rotor, rotary main shaft 6 and hawser 17 is fixedly installed in the rotor hole 24 of described hanger.
Described displacement sensor assembly comprises encoder 5; Described encoder 5 is connected with described rotary main shaft 6; Described displacement sensor assembly and spring 14 are arranged on outside the described hanger 8.
Described spring 14 is a plane scroll spring.
Described displacement transducer also comprises the displacement transducer supporting component, and described supporting component comprises two side direction flanges 7,7 ', guard box a (4), guard box b (20) and elastic support 21.Described side direction flange 7,7 ' edge are fixed on the both sides of described hanger 8 perpendicular to the direction of rotary main shaft 6: promptly side direction flange 7,7 ' is fixedly installed in the rotor hole 23 and 25 of described hanger.And described rotary main shaft 6 runs through described side direction flange 7,7 '.
Be installed with guard box a (4) and guard box (20) b respectively in described two side direction flanges 7,7 ' the outside; described encoder 5 is arranged in the described guard box a (4); described encoder 5 is fixed on described side direction flange 7 outsides by elastic support 21, and encoder 5 is connected with described rotary main shaft 6.
Opposite side external stability on the edge perpendicular to the side direction flange 7 ' of described rotary main shaft 6 is equipped with guard box b (20), described plane scroll spring 14 1 ends are fixed in the described guard box b (20) by link, and the other end is fixed on the spring shaft core 13; Described spring shaft core 13 adopts double key system to be connected with described rotary main shaft 6.
The axis hole place that described rotary main shaft 6 passes hanger 8 or side flange 7 is provided with one group of seal ring 15, and outside described seal ring oil sealing cover 27 of socket, described oil sealing cover 27 is fixedlyed connected with described hanger by bolt.
The major technique effect of this model utility is:
A utilizes this body structure of hydraulic jack hanger, the sensor critical piece is installed in the hanger, the shell construction that one side is saved sensor installation, oil cylinder shackle structure and sensor melt into one, simple compactness is set, the Installation and Debugging all processes of sensor is finished in factory on the other hand, has eliminated the work of Installation and Debugging at the scene basically, guarantees the testing precision of sensor effectively.
The described device of B is placed in the main repair and maintenance parts of sensor such as spring, encoder and Sealing in the outside of hydraulic jack hanger, need not to carry out a series of activities such as pressure release, dismounting of detected oil cylinder, can carry out the scene to apparatus of repair parts changes and maintains, thereby reduce influence to greatest extent, realize on-line maintenance detected oil cylinder proper functioning.
The utility model has designed a kind of high reliability that both had, and can accurately measure the stroke of piston in the hydraulic jack constantly, is convenient to the built-in displacement sensing apparatus of care and maintenance again.
Description of drawings:
Fig. 1 places the embodiment's 1 of the hydraulic cylinder displacement transducer in the hanger structural profile schematic representation for the utility model is a kind of;
Fig. 2 places the embodiment's 2 of the hydraulic cylinder displacement transducer in the hanger structural profile schematic representation for the utility model is a kind of;
The side view that Fig. 3 places the hydraulic cylinder displacement transducer in the hanger to be connected with hydraulic jack for the utility model is a kind of;
Fig. 4 a is the perforate schematic representation of circular hole 26 as the wire guide that detects wire rope 17; Fig. 4 b is that the circular hole 24 of rotor 9 is installed and is the perforate schematic representation of arranging the circular hole 23,25 of side flange 7,7 '; Fig. 4 c be circular hole 26, circular hole 24 and circular hole 23,25 overlook the perforate schematic representation;
Fig. 5 a is the rotating mechanism structural representation in the utility model; Fig. 5 b is the rotating mechanism axial arrangement schematic representation in the utility model;
Fig. 6 places the mechanical structure schematic representation of the hydraulic cylinder displacement transducer wiring unit in the hanger for model utility is a kind of.
Technological scheme concrete in the accompanying drawing will be set forth in conjunction with following embodiment.
Embodiment:
As Fig. 1 is a kind of structural profile schematic representation that places the embodiment 1 of the hydraulic cylinder displacement transducer in the hanger of the utility model;
Described hydraulic jack comprises hydraulic jack cylinder body 1, hanger 8, piston 18 and displacement transducer; Described hanger 8 is fixed on hydraulic jack 1 one ends.
Described displacement transducer comprises displacement transducer Runner assembly, displacement sensor assembly and spring 14.
Described displacement transducer Runner assembly is connected with piston 18, described spring by with the motion of the control piston that is connected of displacement transducer Runner assembly, the displacement stroke of described displacement sensor assembly and displacement transducer Runner assembly conjunction measuring piston 18.
Described displacement transducer Runner assembly also comprises rotor 9, rotary main shaft 6 and hawser 17, and described rotor 9 is fixedlyed connected with rotary main shaft 6 and become one: described rotary main shaft 6 is installed in the described hanger 8 by angular contact ball bearing 12,12 ' rotation.Described rotor 9 and rotary main shaft 6 are bolted to connection, and make described rotor 9 and rotary main shaft 6 become a member.Described device also comprises a bearing unit, and described bearing unit is by bearing support 10, interval axle sleeve 11 and angular contact ball bearing 12, and 12 ' three parts are socketed to form; Described rotor 9 and rotary main shaft 6 are connected in one by transition fit and described bearing unit.
Described hawser 17 places hydraulic jack and hanger inside for wire rope and described wire rope 17.One end of described wire rope 17 is fixed on the cylindrical shell of described rotor 9, and is wrapped in the groove of rotor 9 outer rims, and the other end of described wire rope 17 links to each other with piston 18 by the connector that can rotate freely.The described connector that rotates freely is a wiring unit, and its structure is: wiring unit 2 is socketed to form by two angular contact ball bearings 28,28 ', coupling bolt 29, end ring 30, bearing pressure pad 31, circlip for hole 33, spring washer 32; Described wiring unit 2 is fixedlyed connected with described piston 18 by described coupling bolt 29; Described wire rope 17 is connected by the disk of pin with wiring unit 2.
Described displacement sensor assembly comprises encoder 5; Described encoder 5 is connected with described rotary main shaft 6; Described displacement sensor assembly and spring 14 are arranged on outside the described hanger 8.It is described that to place the measured displacement ranges of hydraulic cylinder displacement transducer in the hanger 8 be 0-20 rice.
Described spring 14 is a plane scroll spring.
Described displacement transducer also comprises the displacement transducer supporting component, described supporting component comprises a side direction flange 7, described side direction flange 7 is along a side that is fixed on described hanger 8 perpendicular to the direction of rotary main shaft 6, and described rotary main shaft 6 runs through described side direction flange 7; Be installed with a guard box 4 in the outside of described side direction flange 7, described encoder 5 is arranged in the described guard box 4, and described encoder 5 is fixed on described side direction flange 7 outsides by elastic support 21, and encoder 5 is connected with described rotary main shaft 6.
Opposite side external stability on the edge perpendicular to the hanger 8 of described rotary main shaft 6 is equipped with guard box 20, and described spring 14 1 ends are fixed in the described guard box 20 by link, and the other end is fixed on the spring shaft core 13; Described spring shaft core 13 adopts double key system to be connected with described rotary main shaft 6.
In order to make the displacement transducer and the hanger 8 that comprise each several part closely cooperate, in described hanger 8, offer rotor hole 24, flange hole 23 and wire guide 26, described rotor 9 is installed in the rotor hole 24, be provided with side direction flange 7 in the described flange hole 23, described hawser 17 is by described wire guide 26.Described rotor hole 24, flange hole 23 and wire guide 26 are separately positioned on hanger 8 bodies, and described each aperture, hole and cloth controlled position are adaptive with the assembly that is arranged on wherein.Being shaped as of described rotor hole, flange hole and wire guide is round.
The axis hole place that described rotary main shaft 6 passes hanger 8 or side flange 7 is provided with one group of seal ring 15, and outside described seal ring an oil sealing cover of socket (27), described oil sealing cover (27) is fixedlyed connected with described hanger by bolt.
As scheming: comprise oil cylinder 1, wiring unit 2, bolt 3, guard box 4, hanger 8, encoder 5, rotary main shaft 6, side direction flange 7, rotor 9, bearing support 10, interval axle sleeve 11 and angular contact ball bearing 12,12 ', central spindle of the spring 13, plane scroll spring 14, seal ring 15, Sealing 16, wire rope 17, piston 18, bolt 19, guard box 20 and elastic support 21; Wherein, rotary main shaft 6 is connected in one by bolt 19 with rotor 9, and rotary main shaft 6 is installed in the hanger 8 by two angular contact ball bearings 12,12 '.One end of wire rope 17 is fixed on rotor 9 cylindrical shells, and be wrapped in an orderly manner in the groove of rotor 9 outer rims, the other end links to each other with piston 18 by a wiring unit that can rotate freely, rotating freely of wiring unit 2 can guarantee that stretching wire rope 17 is consistent with the moving direction of piston 18, eliminates measurement error.Be separately installed with spring 14 and encoder 5 in the both sides of hanger 8 and side direction flange 7, encoder 5 and spring 14 are installed in respectively in guard box 4 and 20.Encoder 5 is fixed on the side direction flange 7 by elastic support 21, and links to each other with rotary main shaft 6.Spring 14 is by being fixed on the central spindle of the spring 13, and central spindle of the spring 13 adopts double key system to connect with rotary main shaft 6.When hydraulic cylinder piston 18 was descending, wire rope 17 drove rotors 9 and rotary main shaft 6 rotations, tightens up spring 18 by rotary main shaft 6; When hydraulic cylinder piston 18 was up, the restoring moment by spring 14 made rotary main shaft 6 drive rotors 9 counterrotatings, guarantees that wire rope 17 is in tension all the time.
Fig. 2 places the embodiment's 2 of the hydraulic cylinder displacement transducer in the hanger structural profile schematic representation for the utility model is a kind of;
Offer rotor hole 24, flange hole 23,25 and wire guide 26 in described hanger 8 respectively, described rotor 9 is installed in the rotor hole 24, is provided with side direction flange 7,7 ' in the described flange hole 23,25, and described hawser 17 is by described wire guide 26.Described rotor hole 24, flange hole 23,25 and wire guide 26 are separately positioned on hanger 8 bodies, and described each aperture, hole and cloth controlled position are adaptive with the assembly that is arranged on wherein.Being shaped as of described rotor hole, flange hole and wire guide is round.
Described displacement transducer Runner assembly includes rotor 9, rotary main shaft 6 and hawser 17.
Described rotor 9 is fixedlyed connected with rotary main shaft 6 and become one: described rotary main shaft 6 is installed in the described hanger 8 by angular contact ball bearing 12,12 ' rotation.Described rotor 9 and rotary main shaft 6 are bolted to connection, and make described rotor 9 and rotary main shaft 6 become a member.Described device also comprises a bearing unit, and described bearing unit is by bearing support 10, interval axle sleeve 11 and angular contact ball bearing 12, and 12 ' three parts are socketed to form; Described rotor 9 and rotary main shaft 6 are connected in one by transition fit and described bearing unit.
Described hawser 17 places hydraulic jack and hanger inside for wire rope and described wire rope.One end of described wire rope 17 is fixed on the cylindrical shell of described rotor 9, and is wrapped in the groove of rotor 9 outer rims, and the other end of described wire rope 17 links to each other with piston 18 by the connector that can rotate freely.The described connector that rotates freely is a wiring unit, and its structure is: wiring unit 2 is socketed to form by two angular contact ball bearings 28,28 ', coupling bolt 29, end ring 30, bearing pressure pad 31, spring washer 32, circlip for hole 33; Described wiring unit 2 is fixedlyed connected with described piston 18 by described coupling bolt 29; Described wire rope 17 is connected by the disk of pin with wiring unit 2.
The described displacement transducer Runner assembly that includes rotor 9, rotary main shaft 6 and hawser 17 is fixedly installed in rotor 24 holes of described hanger.
Described displacement sensor assembly comprises encoder 5; Described encoder 5 is connected with described rotary main shaft 6; Described displacement sensor assembly and spring 14 are arranged on outside the described hanger.
Described spring 14 is a plane scroll spring.
Described displacement transducer also comprises the displacement transducer supporting component, and described supporting component comprises two side direction flanges 7,7 ', guard box 4, guard box 20 and elastic support 21.Described side direction flange 7,7 ' is along the both sides that are fixed on described hanger 8 perpendicular to the direction of rotary main shaft 6, and described rotary main shaft 6 runs through described side direction flange 7,7 '.
At described two side direction flanges 7; 7 ' the outside is installed with guard box 4 and guard box 20 respectively; described encoder 5 is arranged in the described guard box 4, and described encoder 5 is fixed on described side direction flange 7 outsides by elastic support 21, and encoder 5 is connected with described rotary main shaft 6.
Opposite side external stability on the edge perpendicular to the side direction flange 7 ' of described rotary main shaft 6 is equipped with guard box 20, and described plane scroll spring 14 1 ends are fixed in the described guard box 20 by link, and the other end is fixed on the spring shaft core 13; Described spring shaft core 13 adopts double key system to be connected with described rotary main shaft 6.
The axis hole place that described rotary main shaft 6 passes side flange 7 and 7 ' is provided with a seal ring 15, and outside described seal ring oil sealing cover 27 of socket, described oil sealing cover 27 is fixedlyed connected with described hanger by bolt.
The side view that Fig. 3 places the hydraulic cylinder displacement transducer in the hanger to be connected with hydraulic jack for the utility model is a kind of; The working principle of this sensor is the piston 18 of hydraulic jack when being in upper limit, and wire rope 17 is wrapped on the rotor 9.When piston 18 was descending, the wire rope 17 that connects with piston 18 drives rotors 9 and rotary main shaft 6 is rotated in the forward, and the rotation by rotary main shaft 6 is tightened up spring 14.When piston 18 was up, spring 14 relied on its restoring moments to make rotary main shaft 6 drive rotors 9 counterrotatings, and tense wire rope 17.In this process, encoder 5 is followed rotary main shaft 6 and is rotated synchronously under the drive of rotary main shaft 6, the displacement that can draw piston 18 thus according to the diameter and encoder 5 rotating cycles of rotor 9, displacement amount converts digital signal to by encoder 5, be sent to the control instrument of hydraulic jack detection system, on the one hand can demonstrate displacement data, on the other hand, reach automatic management hydraulic-mechanic system by the displacement numerical information that detects by control instrument.
Fig. 4 places the locations of structures schematic representation in the hydraulic cylinder displacement transducer hanger cloth hole in the hanger for the utility model is a kind of.
For sensor device being installed in the hanger 8, this device adopts in design process to be opened circular hole and arranges on shackle structure, setting type as shown in the figure: circular hole 24 is installed rotors 9, and circular hole 23,25 is arranged side flanges 7,7 ', circular hole 26 is as the wire guide that detects wire rope 17.According to the calculation requirement of package unit structural strength, finally determine size, form and the cloth hole site of perforate.Strength Calculation according to oil cylinder hanger force request and material, adopts finite element method to calculate.
Fig. 5 places the rotating mechanism structural representation of the hydraulic cylinder displacement transducer in the hanger for the utility model is a kind of;
Rotary main shaft 6 is installed in the hanger 8 by angular contact ball bearing 12,12 ' rotation; Rotor 9 is fixedlyed connected by bolt 21 with rotary main shaft 6, makes rotor 9 and rotary main shaft 6 become a member.Also comprise a bearing unit in the rotational structure, described bearing unit is by bearing support 10, interval axle sleeve 11 and angular contact ball bearing 12, and 12 ' three parts are socketed to form; Rotor 9 and rotary main shaft 6 are connected in one by transition fit and bearing unit.Rotor hole 24 places of passing hanger at rotary main shaft 6 are provided with a seal ring 15, and outside described seal ring oil sealing cover 27 of socket, described oil sealing cover 27 is fixedlyed connected with described hanger 8 by bolt.
Fig. 6 places the mechanical structure schematic representation of the hydraulic cylinder displacement transducer wiring unit in the hanger for model utility is a kind of.
Claims (10)
1, a kind of hydraulic cylinder displacement transducer that places in the hanger, described hydraulic jack comprises: hydraulic jack cylinder body (1), hanger (8), piston (18) and displacement transducer; Described hanger (8) is fixed on hydraulic jack (1) one end;
It is characterized in that: described displacement transducer comprises displacement transducer Runner assembly, displacement sensor assembly and spring (14);
Described displacement transducer Runner assembly is connected with piston (18), described spring (14) by with the motion of the control piston that is connected (18) of displacement transducer Runner assembly, the displacement stroke of described displacement sensor assembly and displacement transducer Runner assembly conjunction measuring piston (18);
The described displacement transducer Runner assembly that includes rotor (9) is fixedly installed in the described hanger (8).
2, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 1,
It is characterized in that: described displacement transducer Runner assembly also comprises rotary main shaft (6) and hawser (17), and described rotor (9) is fixedlyed connected with rotary main shaft (6) and become one; Described hawser (17) one ends are wrapped on the described rotor (9), and the other end is connected with the piston (18) of hydraulic jack; The described displacement transducer Runner assembly that includes rotor (9), rotary main shaft (6) and hawser (17) is fixedly installed in the described hanger (8);
Described displacement sensor assembly comprises encoder (5); Described encoder (5) is connected with described rotary main shaft (6); Described displacement sensor assembly and spring (14) are arranged on outside the described hanger (8).
3, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 2,
It is characterized in that: described displacement transducer also comprises the displacement transducer supporting component, described supporting component comprises a side direction flange (7) at least, described side direction flange (7) is along a side that is fixed on described hanger (8) perpendicular to the direction of rotary main shaft (6), and described rotary main shaft (6) runs through described side direction flange (7).
4, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 2,
It is characterized in that: in described hanger, offer rotor hole (24), flange hole (23) and wire guide (26), described rotor (9) is installed in the rotor hole (24), be provided with side direction flange (7) in the described flange hole (23), described hawser (17) is by described wire guide (26);
Described rotor hole (24), flange hole (23) and wire guide (26) are separately positioned on hanger (8) body, and described each aperture, hole and cloth controlled position are adaptive with the assembly that is arranged on wherein;
Described rotor hole (24), flange hole (23) and wire guide (26) be shaped as a kind of in round or polygonal.
5, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 2,
It is characterized in that: described rotary main shaft (6) is installed in the described hanger (8) by angular contact ball bearing (12,12 ') rotation; Described rotor (9) and rotary main shaft (6) are bolted to connection, and make described rotor (9) and rotary main shaft (6) become a member;
Described device also comprises a bearing unit, and described bearing unit is socketed to form by bearing support (10), interval axle sleeve (11) and angular contact ball bearing (12,12 ') three parts; Described rotor (9) and rotary main shaft (6) are connected in one by transition fit and described bearing unit.
6, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 2,
It is characterized in that: described hawser (17) places hydraulic jack and hanger inside for wire rope and described wire rope (17); One end of described wire rope (17) is fixed on the cylindrical shell of described rotor (9), and is wrapped in the groove of rotor (9) outer rim, and the other end of described wire rope (17) links to each other with piston (18) by the connector that can rotate freely;
The described connector that rotates freely is a wiring unit (2), and its structure is: wiring unit (2) is socketed to form by two angular contact ball bearings (28,28 '), coupling bolt (29), end ring (30), bearing pressure pad (31), circlip for hole (33), spring washer (32); Described wiring unit (2) is fixedlyed connected with described piston (18) by described coupling bolt (29); Described wire rope (17) is connected by the disk of pin with wiring unit (2).
7, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 3,
It is characterized in that: described sensor comprises a side direction flange (7), and described side direction flange (7) is along a side that is fixed on described hanger (8) perpendicular to the direction of rotary main shaft (6), and described rotary main shaft (6) runs through described side direction flange (7); Be installed with a guard box a (4) in the outside of described side direction flange (7), described encoder (5) is arranged in the described guard box a (4), described encoder (5) is fixed on described side direction flange (7) outside by elastic support (21), and encoder (5) is connected with described rotary main shaft (6);
Opposite side external stability on the edge perpendicular to the hanger (8) of described rotary main shaft (6) is equipped with guard box b (20), and described spring (14) one ends are fixed in the described guard box b (20) by link, and the other end is fixed on the spring shaft core (13); Described spring shaft core (13) adopts double key system to be connected with described rotary main shaft (6).
8, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 7,
It is characterized in that: described rotary main shaft (6) is provided with one group of seal ring (15) at the axis hole place of passing hanger (8) or side direction flange (7), and outside described seal ring an oil sealing cover of socket (27), described oil sealing cover is fixedlyed connected with described hanger (8) by bolt.
9, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 1,
It is characterized in that: in described hanger (8), offer rotor hole (24), flange hole (23,25) and wire guide (26) respectively, described rotor (9) is installed in the rotor hole (24), described flange hole (23,25), in be provided with side direction flange (7), described hawser (17) is by described wire guide (26); Described rotor hole (24), flange hole (23,25) and wire guide (26) are separately positioned on hanger (8) body, and described each aperture, hole and cloth controlled position are adaptive with the assembly that is arranged on wherein; Being shaped as of described rotor hole (24), flange hole (23) and wire guide (26) is round;
Described displacement transducer Runner assembly includes rotor (9), rotary main shaft (6) and hawser (17);
Described rotor (9) is fixedlyed connected with rotary main shaft (6) and become one: described rotary main shaft (6) is installed in the described hanger (8) by angular contact ball bearing (12) rotation; Described rotor (9) and rotary main shaft (6) are bolted to connection, and make described rotor (9) and rotary main shaft (6) become a member; Described device also comprises a bearing unit, and described bearing unit is socketed to form by bearing support (10), interval axle sleeve (11) and angular contact ball bearing (12,12 ') three parts; Described rotor (9) and rotary main shaft (6) are connected in one by transition fit and described bearing unit;
Described hawser (17) places hydraulic jack and hanger inside for wire rope and described wire rope (17); One end of described wire rope (17) is fixed on the cylindrical shell of described rotor (9), and be wrapped in the groove of rotor (9) outer rim, described wire rope (17) is by described wire guide (26), and the other end of wire rope (17) links to each other with piston (18) by the connector that can rotate freely;
The described displacement transducer Runner assembly that includes rotor (9), rotary main shaft (6) and hawser (17) is fixedly installed in the rotor hole (24) of described hanger;
Described displacement sensor assembly comprises encoder (5); Described encoder (5) is connected with described rotary main shaft (6); Described displacement sensor assembly and spring (14) are arranged on outside the described hanger (8);
Described spring (14) is a plane scroll spring;
Described displacement transducer also comprises the displacement transducer supporting component, and described supporting component comprises two side direction flanges (7,7 '), guard box a (4), guard box b (20) and elastic support (21); Described side direction flange (7,7 ') is along the both sides that are fixed on described hanger (8) perpendicular to the direction of rotary main shaft (6): promptly side direction flange (7,7 ') is fixedly installed in the rotor hole (23,25) of described hanger, and described rotary main shaft (6) runs through described side direction flange (7,7 ');
Be installed with guard box a (4) and guard box b (20) respectively in the outside of described two side direction flanges (7,7 '), described encoder (5) is arranged in the described guard box a (4), described encoder (5) is fixed on described side direction flange (7) outside by elastic support (21), and encoder (5) is connected with described rotary main shaft (6);
Opposite side external stability on the edge perpendicular to the side direction flange (7 ') of described rotary main shaft is equipped with guard box b (20), described plane scroll spring (14) one ends are fixed in the described guard box b (20) by link, and the other end is fixed on the spring shaft core (13); Described spring shaft core (13) adopts double key system to be connected with described rotary main shaft (6);
The axis hole place that described rotary main shaft (6) passes hanger (8) is provided with a seal ring (15), and outside described seal ring an oil sealing cover of socket (27), described oil sealing cover (27) is fixedlyed connected with described hanger (8) by bolt.
10, a kind of hydraulic cylinder displacement transducer that places in the hanger according to claim 1,
It is characterized in that: described to place the measured displacement range of hydraulic cylinder displacement transducer in the hanger be 0-20 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127599 CN2913706Y (en) | 2005-11-10 | 2005-11-10 | Hydraulic oil cylinder displacement sensor inside lifting eye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127599 CN2913706Y (en) | 2005-11-10 | 2005-11-10 | Hydraulic oil cylinder displacement sensor inside lifting eye |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913706Y true CN2913706Y (en) | 2007-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520127599 Expired - Lifetime CN2913706Y (en) | 2005-11-10 | 2005-11-10 | Hydraulic oil cylinder displacement sensor inside lifting eye |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913706Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310126A (en) * | 2011-10-14 | 2012-01-11 | 天津市天锻压力机有限公司 | Longitudinal beam hydraulic press displacement detection device |
| US9670649B2 (en) | 2013-11-25 | 2017-06-06 | Esco Corporation | Wear part monitoring |
| US10011975B2 (en) | 2015-02-13 | 2018-07-03 | Esco Corporation | Monitoring ground-engaging products for earth working equipment |
| CN113898336A (en) * | 2021-11-08 | 2022-01-07 | 龙沃科技开发有限公司 | Displacement sensor for single-well multiphase flow intelligent acquisition system |
-
2005
- 2005-11-10 CN CN 200520127599 patent/CN2913706Y/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310126A (en) * | 2011-10-14 | 2012-01-11 | 天津市天锻压力机有限公司 | Longitudinal beam hydraulic press displacement detection device |
| US10683642B2 (en) | 2013-11-25 | 2020-06-16 | Esco Group Llc | Wear part monitoring |
| US9670649B2 (en) | 2013-11-25 | 2017-06-06 | Esco Corporation | Wear part monitoring |
| US10697154B2 (en) | 2013-11-25 | 2020-06-30 | Esco Group Llc | Wear part monitoring |
| US10024033B2 (en) | 2013-11-25 | 2018-07-17 | Esco Corporation | Wear part monitoring |
| US10689832B2 (en) | 2013-11-25 | 2020-06-23 | Esco Group Llc | Wear part monitoring |
| US10689833B2 (en) | 2013-11-25 | 2020-06-23 | Esco Group Llc | Wear part monitoring |
| US10612213B2 (en) | 2015-02-13 | 2020-04-07 | Esco Group Llc | Monitoring ground-engaging products for earth working equipment |
| US10669698B2 (en) | 2015-02-13 | 2020-06-02 | Esco Group Llc | Monitoring ground-engaging products for earth working equipment |
| US10633832B2 (en) | 2015-02-13 | 2020-04-28 | Esco Group Llc | Monitoring ground-engaging products for earth working equipment |
| US10633831B2 (en) | 2015-02-13 | 2020-04-28 | Esco Group Llc | Monitoring ground-engaging products for earth working equipment |
| US10011975B2 (en) | 2015-02-13 | 2018-07-03 | Esco Corporation | Monitoring ground-engaging products for earth working equipment |
| US10760247B2 (en) | 2015-02-13 | 2020-09-01 | Esco Group Llc | Monitoring ground-engaging products for earth working equipment |
| US10787792B2 (en) | 2015-02-13 | 2020-09-29 | Esco Group Llc | Monitoring ground-engaging products for earth working equipment |
| US11851848B2 (en) | 2015-02-13 | 2023-12-26 | Esco Group Llc | Monitoring ground-engaging products for earth working equipment |
| US12104359B2 (en) | 2015-02-13 | 2024-10-01 | Esco Group Llc | Monitoring ground-engaging products for earth working equipment |
| CN113898336A (en) * | 2021-11-08 | 2022-01-07 | 龙沃科技开发有限公司 | Displacement sensor for single-well multiphase flow intelligent acquisition system |
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