CN212769648U - Engine tail nozzle lifting device - Google Patents
Engine tail nozzle lifting device Download PDFInfo
- Publication number
- CN212769648U CN212769648U CN202021657291.9U CN202021657291U CN212769648U CN 212769648 U CN212769648 U CN 212769648U CN 202021657291 U CN202021657291 U CN 202021657291U CN 212769648 U CN212769648 U CN 212769648U
- Authority
- CN
- China
- Prior art keywords
- bracket
- layer
- engine
- profiling
- pair
- 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
- 238000013519 translation Methods 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 208000019914 Mental Fatigue Diseases 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Landscapes
- Catching Or Destruction (AREA)
Abstract
The utility model discloses an engine exhaust nozzle lifting device adopts the design of X type adjustable shelf to the oil pump is power, replace the manpower to lift the exhaust nozzle, combine directional wheel and universal wheel, have convenient and stable effect concurrently, adopt the layered design, finely tune in vertical direction and horizontal direction, the different radians of profile modeling bracket replacement, the spacing is adjusted, in order to adapt to the exhaust nozzle of not unidimensional and shape, in the in-service use process, the factor of safety of operation has been improved, the operation degree of difficulty has been reduced, the intensity of labour of operative employee has been reduced, the manpower has been saved.
Description
Technical Field
The utility model belongs to the technical field of mechanical design, concretely relates to support and elevating gear.
Background
When the aircraft is overhauled regularly and spare part is changed, need dismantle and install engine exhaust nozzle, traditional operation mode is that the manpower lifts and shifts. The tail jet pipe of the engine is characterized by large volume, irregular shape, smooth surface, large grasping difficulty, heavy weight, unpredictable center of gravity, high temperature, long cooling time, high value and large damage loss.
Taking an A320 series airplane introduced by Donghangjiangsu corporation from 2013 as an example, the V2500 engine is assembled, and the situation that the V2500 engine is assembled and disassembled in a tail nozzle is frequently encountered in the processes of regular overhaul and part replacement. At present, 7 persons are used as a maintenance group, a simple tool is used, lifting and moving are carried out manually, and once disassembly can be completed within about 6 hours. During the operation, the following problems arise:
the tail nozzle is similar to a cone, the diameter of the tail end is about 1 meter, the diameter of the front end is about 2 meters, the size is huge, a plurality of people need to hold the tail nozzle in a cooperative manner, and the tail nozzle is irregular in shape, so that the holding difficulty is brought; the tail nozzle has smooth surface, is easy to slide off in the lifting and carrying process, has no direct grabbing point, and can only be transported in the modes of bundling, dragging and dragging; the tail nozzle has heavy weight, needs several people to support the tail nozzle in a combined manner, has high labor intensity, is transported to hurt the body for a long time, and is easy to cause personnel disability by carelessness; the core temperature of the engine is as high as more than three hundred degrees, the tail nozzle needs to be cooled for a long time, the temperature cannot be seen from the surface, and the scald is easily caused by the contact of hands; if the tail nozzle is damaged in the disassembly process, the maintenance time is long, the use of the airplane is influenced, and huge loss is brought between 35 to 63 ten thousand RMB maintenance costs.
To sum up, the operation mode of installation jet nozzle is dismantled to traditional manpower needs to use a large amount of manpowers, emphasizes the cooperation of writing each other, and operative employee's physical and mental fatigue, and physical demands is big, and there are a large amount of potential safety hazards in the operation process, leads to casualties and loss of property, and the operation mode is complicated, and the operation degree of difficulty is big, needs to carry out professional training to the operative employee, can't form the standard operation manual of system, wastes a large amount of time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that prior art exists, provided an engine exhaust nozzle lifting device, in order to realize above-mentioned purpose, the utility model discloses a following technical scheme.
The device comprises a profiling bracket, a supporting platform, an undercarriage, an oil pump and a base, wherein the bottom of the profiling bracket is installed on the upper portion of the supporting platform, the top of the undercarriage is installed on the lower portion of the supporting platform, the bottom of the undercarriage is installed on the base, and the oil pump is installed on the base.
The profiling bracket is in a long strip shape, the top of the profiling bracket is in a radian shape of the tail nozzle of the engine and comprises a front end bracket and a rear end bracket, the height of the front end bracket is smaller than that of the rear end bracket, the front end of the tail nozzle of the engine is lifted, and the rear end bracket is parallel to the front end bracket and lifts the rear end of the tail nozzle of the engine.
Furthermore, the profiling bracket is formed by combining a plurality of vertical cuttings, and the vertical cuttings in different combinations form different profiling notches corresponding to engine tail nozzles with different radians.
Furthermore, the top of the profiling bracket is made of an anti-skid material, so that the friction coefficient of the contact surface of the profiling bracket and the tail nozzle of the engine is increased, and belts are arranged on two sides of the profiling bracket and are bound around the tail nozzle of the engine by a circle.
Furthermore, the baffle is installed on the outer side of the front end bracket and is higher than the profiling notch, so that the engine tail nozzle is prevented from moving to the outer side of the front end bracket.
The undercarriage comprises a pair of X-shaped movable frames and a pair of hydraulic cylinders, wherein the X-shaped movable frames are parallel to each other, the X-shaped movable frames are formed by crossing two rigid materials, the X-shaped movable frames are connected at the crossing positions through rotating shafts and rotate along the rotating shafts, two ends of each hydraulic cylinder are respectively connected with the two rigid materials through the rotating shafts, and the two rigid materials simultaneously rotate along the two rotating shafts in a combined mode.
Furthermore, the top end of one rigid material of the X-shaped movable frame is fixed on a sliding rail of the supporting platform through a rotating shaft, a pulley is installed at the bottom end and slides in the sliding rail of the base, the bottom end of the other rigid material is fixed on the sliding rail of the base through the rotating shaft, and a pulley is installed at the top end and slides in the sliding rail of the supporting platform.
Furthermore, two hydraulic cylinders are respectively provided with independent valves for communicating or blocking oil passages from the oil pump to the hydraulic cylinders.
The oil pump is connected with the hydraulic cylinder, so that the hydraulic cylinder is extended or shortened, and an included angle formed by the intersection of the two rigid materials is adjusted to open or fold the X-shaped movable frame, so that the supporting platform is lifted or lowered.
Further, the oil pump comprises an oil pipe, an oil tank, an air pump, a pedal, a spring, an ejector pin, a roller, a pressure rod, a connecting rod and a pedal rod, wherein two ends of the oil pipe are connected with the hydraulic cylinder and the oil tank, the oil tank is communicated with the air pump, the pedal is connected with the bottom of the air pump, the ejector pin is connected with the top of the air pump through the spring, the axis of the roller is connected with the pressure rod, the bottom of the pressure rod is installed at the top of the oil tank through a rotating shaft and rotates along the rotating shaft, and two ends of the; a back plate is arranged at the top of the oil tank, a pressure rod is conical and is attached to the back plate, and an included angle is formed between the pressure rod and the vertical direction; the pedal rod is parallel to the ground and is vertical to the connecting rod, and the pedal rod is pressed down to enable the connecting rod and the pressure rod to rotate and drive the roller to press down the thimble; the spring reset thimble bounces to drive the pressure lever and the connecting rod to rotate, so that the pedal lever is lifted; the thimble is pushed down to make the air pump press the oil pressure of the oil tank to the hydraulic cylinder, the pedal is pushed down, the air pump is opened to make the oil flow of the hydraulic cylinder return to the oil tank.
A pair of slide rails is respectively installed on the lower portion of the supporting platform and the upper portion of the base, the top end of the rigid material slides in the slide rails of the supporting platform, and the bottom end of the rigid material slides in the slide rails of the base.
Furthermore, the supporting platform comprises a pair of lifting layers, a pair of translation layers and a supporting layer, the two profiling brackets are respectively arranged on the upper parts of the two lifting layers, the two lifting layers are respectively arranged on the upper parts of the two translation layers, and the two translation layers are arranged on the upper parts of the supporting layer; the inner sides of the lifting layer and the translation layer are connected through a plurality of pairs of hinges so that the lifting layer rotates along the hinges; the contact surfaces of the translation layer and the support layer are connected through a rack structure, so that the translation layer slides along the contact surfaces; the lower part of the supporting layer is provided with a sliding rail which is connected with the undercarriage.
A wrapping hoop is arranged on the outer side of the profile modeling bracket of the lifting layer, a worm is arranged on the outer side of the translation layer, the worm is composed of a worm wheel and a screw rod, and the outer edge of the worm wheel is meshed with the screw rod; the top end of the screw rod is connected with the wrapping hoop, and the worm wheel rotates to enable the screw rod to move up and down and drive the profiling bracket to move synchronously.
A pair of gears is arranged at the lower part of the translation layer, the gears are parallel to the translation layer, and the axis of the gears is connected with the translation layer through a rotating shaft and rotates along the rotating shaft; the upper part of the supporting layer is provided with a pair of grooves which are parallel to each other, and the grooves are respectively provided with a guide rail which is vertical to the profiling bracket; a pair of gears on the same translation layer are respectively embedded into the two guide rails, one side of each guide rail is provided with teeth, the other side of each guide rail is smooth, the diameter of each gear is the same as the width of each guide rail, the outer edges of the gears are meshed with the toothed edges of the guide rails to form a toothed rail structure, and the toothed rail structure rotates along the guide rails to drive the translation layer to synchronously slide.
Furthermore, a pair of directional wheels and a pair of universal wheels are arranged at the lower part of the base, the directional wheels are arranged at one side of the front end bracket, and the universal wheels are arranged at one side of the rear end bracket.
The utility model pushes the lower part of the tail spray pipe from back to front, the directional wheel is in front, the universal wheel is in back, the left and right movement in front of the device can not be realized, the displacement can be prevented only by finely adjusting the direction from the back, after the disassembly is finished, the device is withdrawn from front to back, the universal wheel is in front, the directional wheel is in back, the advancing direction is adjusted, and the disassembly and the transportation are convenient and reliable; the oil pump is repeatedly treaded to extend the hydraulic cylinder, so that the two rigid materials are propped open, the two ends of the hydraulic cylinder can freely rotate along the rotating shaft, the X-shaped movable frame is propped open, the device is lifted, one side of the X-shaped movable frame is fixed on the supporting layer, the other side of the X-shaped movable frame freely slides, and the X-shaped movable frame can keep stable while deforming, is simple and easy to operate and relieves manpower; the two X-shaped movable frames are respectively provided with the hydraulic cylinders and independently deform, so that loss caused by mutual angular force due to size errors caused by rough machining is avoided, the two hydraulic cylinders are provided with the independent valves, when one hydraulic cylinder is damaged, the other hydraulic cylinder does not influence the other hydraulic cylinder, and the X-shaped movable frame is ingenious in design and suitable for severe environments; the supporting platform is designed into three layers, the lowest layer is used for supporting, the middle layer is used for translation, and the uppermost layer is used for lifting, so that the supporting platform is designed in a separated mode, and later maintenance is facilitated; the two translation layers are separated from each other, the distance between the two translation layers is adjusted to adjust the distance between the two profiling brackets, the tail spray pipes with different lengths are adapted, when the device is positioned below the tail spray pipe, the horizontal position of the translation layers is finely adjusted, and further accurate positioning is realized; the two lifting layers are separated from each other and can rotate along the inner side to form a certain pitching angle, when the worm wheel is rotated to drive the screw rod, the profiling bracket can freely rise or fall, the lifting height is finely adjusted, and the two lifting layers are also suitable for front and rear arcs of different tail spray pipes; the combination of the cutting of different radians is replaced to the profile modeling bracket, corresponds the exhaust nozzle of different radians, strengthens fixedly with outside baffle and belt, and the anti-skidding material of contact surface prevents to remove, improves factor of safety.
Drawings
Fig. 1 is an overall structural view, fig. 2 is a side view of a support platform, fig. 3 is a rack structure view, fig. 4 is a top view of the support platform, fig. 5 is a front view of a copying bracket, fig. 6 is a worm structure view, fig. 7 is a front view of a landing gear, fig. 8 is a side view of the landing gear, and fig. 9 is a structural view of an oil pump.
Reference numerals: 1-support layer, 12-guide rail, 121-toothed, 122-smooth, 2-translation layer, 21-gear, 211-axial spindle, 212-gear rim, 22-worm, 221-worm wheel, 222-worm wheel handle, 223-lead screw, 23-hinge, 24-groove, 3-lifting layer, 31-front end bracket, 311-baffle, 312-vertical cutting, 32-rear end bracket, 33-hoop, 34-anti-slip material, 35-belt, 4-base, 41-directional wheel, 42-universal wheel, 43-oil pump, 431-oil tank, 432-pressure bar, 433-connecting rod, 434-air pump, 435-oil pipe, 436-thimble, 437-foot bar, 438-foot plate, 5-X type movable frame, 51-rigid material, 511-central rotating shaft, 513-top rotating shaft, 521-fixed rotating shaft, 522-pulley, 53-hydraulic cylinder, 531-bottom rotating shaft, 533-valve and 6-slide rail.
Detailed Description
The technical scheme of the utility model is explained in detail with the attached drawings.
The device structure is shown in fig. 1, and comprises a front end bracket 31, a rear end bracket 32, a lifting layer 3, a translation layer 2, a support layer 1, an X-shaped movable frame 5, a hydraulic cylinder 53, an oil pump 43, a base 4, an orientation wheel 41 and a universal wheel 42.
The translation layer 2 has a pair, as shown in fig. 2, and a gear 21 is mounted on the lower portion, the gear 21 is parallel to the translation layer 2, as shown in fig. 3, the gear is connected with the translation layer 2 through a shaft center rotating shaft 211 and rotates along the shaft center rotating shaft 211, as shown in fig. 4, and each translation layer 2 has a pair of gears 21.
The upper part of the supporting layer 1 is provided with a pair of grooves which are parallel to each other, as shown in fig. 2, the guide rails 12 are respectively arranged, as shown in fig. 4, a pair of gears 21 of the same translation layer 2 are respectively embedded into the two guide rails 12, as shown in fig. 3, one side of each guide rail is provided with teeth 121, the other side of each guide rail is smooth 122, the diameter of each gear 21 is the same as the width of each guide rail 12, and the outer edge 212 of each gear is meshed with one side of each guide rail 12 provided with the teeth 121.
The lifting layer 3 has a pair, as shown in fig. 4, and the translation layer 2 is connected at the inner side by five pairs of hinges 23, as shown in fig. 2, and is respectively installed at the upper parts of the two translation layers 2, and the two lifting layers 3 are respectively rotated along the hinges 23.
The front end bracket 31 and the rear end bracket 32 are in a long strip shape, as shown in fig. 1, are parallel to each other, are respectively installed at the bottoms of the two lifting layers 3, are in a shape of an arc of the engine tail pipe, are made of an anti-skid material 34 at the top, increase the friction coefficient of the contact surface of the bracket and the engine tail pipe, respectively lift the front end and the rear end of the engine tail pipe, are respectively provided with a belt 35 at two sides, and are bound around the engine tail pipe for a circle, as shown in fig. 2, the height of the front end bracket 31 is smaller than that of the rear end bracket 32.
As shown in fig. 5, the front end bracket 31 and the rear end bracket 32 are formed by combining a plurality of vertical insertion strips 312, the vertical insertion strips 312 in different combinations form different profiling notches corresponding to engine exhaust pipes with different radians, and a baffle 311 is installed on the outer side of the front end bracket 31 and is higher than the profiling notches to prevent the engine exhaust pipes from moving to the outer side of the front end bracket 31.
The outsides of the front end bracket 31 and the rear end bracket 32 are both provided with a wrapping hoop 33 as shown in fig. 1, the outside of the translation layer 2 is provided with a worm 22 as shown in fig. 6, the worm 22 is composed of a worm wheel 221 and a screw rod 223, the outer edge teeth of the worm wheel 221 are meshed with the teeth of the screw rod 223, a worm wheel handle 222 is arranged on the worm wheel 221, the top end of the screw rod 223 is connected with the wrapping hoop 33, the worm wheel handle 222 is held to rotate the worm wheel 221, the screw rod 223 moves up and down, the wrapping hoop 33 is driven to enable the front end bracket 31 and the rear end bracket 32 to move synchronously, and as shown in fig. 2, the lifting layers 3 corresponding to.
The supporting platform is designed into three layers, wherein the lowest layer is used for supporting, the middle layer is used for translation, and the uppermost layer is used for lifting; the two translation layers are separated from each other, the distance between the two translation layers is adjusted to adjust the distance between the two profiling brackets, the tail spray pipes with different lengths are adapted, when the device is positioned below the tail spray pipe, the horizontal position of the translation layers is finely adjusted, and further accurate positioning is realized; the two lifting layers are separated from each other and can rotate along the inner side to form a certain pitching angle, when the worm wheel is rotated to drive the screw rod, the profiling bracket can freely rise or fall, the lifting height is finely adjusted, and the two lifting layers are also suitable for front and rear arcs of different tail spray pipes; the profiling bracket replaces the combination of the cutting strips with different radians, corresponds to the tail spray pipes with different radians, and is reinforced and fixed by the outer side baffle plate and the belt, and the anti-skid material of the contact surface prevents the movement.
The X-shaped movable frames 5 are provided in a pair, parallel to each other as shown in fig. 1, and each X-shaped movable frame is formed by crossing two rigid materials 51, as shown in fig. 7, and the two rigid materials 51 are connected at the crossing by a central rotation shaft 511 to rotate along the central rotation shaft 511.
As shown in fig. 7, the lower portion of the supporting layer 1 and the upper portion of the base 4 are provided with slide rails 6, the top end of one rigid material 51 of the X-shaped movable frame 5 is fixed to the slide rails 6 of the supporting layer 1 through a fixed rotating shaft 521, the bottom end is provided with a pulley 522 to slide in the slide rails 6 of the base 4, the bottom end of the other rigid material 51 is fixed to the slide rails 6 of the base through the fixed rotating shaft 521, and the top end is provided with the pulley 522 to slide in the slide rails 6 of the supporting layer 1.
The hydraulic cylinders 53 are coupled to one rigid member 51 through a top rotating shaft 513 as shown in fig. 8, and coupled to the other rigid member 51 of the same X-shaped movable frame 5 through the top rotating shaft 513 as shown in fig. 7, and rotate together along the top rotating shaft 513 and the top rotating shaft 513 while extending and contracting.
The oil pump 43 is mounted on the base 4 as shown in fig. 1, the structure is as shown in fig. 9, two ends of an oil pipe 435 are connected with the hydraulic cylinder 53 and the oil tank 431, the oil tank 431 is communicated with the air pump 434, a pedal 438 is connected with the bottom of the air pump 434, the thimble is connected with the top of the air pump 434 through a spring, the axis of the roller 436 is connected with a pressure lever 432, the bottom of the pressure lever 432 is mounted on the top of the oil tank 431 through a rotating shaft and rotates along the rotating shaft, two ends of a connecting rod 433 are respectively connected with the pressure lever 432 and a pedal 437 through the rotating shaft and simultaneously rotate along the.
The foot bar 437 is pressed down to make the connecting rod 433 and the pressing rod 432 rotate, the roller 436 is driven to press down the thimble, the spring is reset to make the thimble bounce, the pressing rod 432 and the connecting rod 433 are driven to rotate, the foot bar 437 is lifted, the backboard is installed at the top of the oil tank 431, the pressing rod 432 is conical, the backboard is attached to the backboard, an included angle is formed between the backboard and the vertical direction, and the backboard cannot be in a vertical state.
As shown in fig. 8, the oil pump 4 is connected to the two hydraulic cylinders 53 through oil pipes 435, the two hydraulic cylinders 53 are provided with independent valves 533 respectively, the oil passages from the oil pump 43 to the hydraulic cylinders 53 are connected or blocked, the needle is pressed down, the air pump 434 presses the oil pressure of the oil tank 431 down to the hydraulic cylinders 53 and the pedal 438, the air pump 434 is opened, and the oil of the hydraulic cylinders 53 returns to the oil tank 531.
The oil pump 4 drives the hydraulic cylinder 53, as shown in fig. 7, to extend or shorten the hydraulic cylinder 53, and adjust the angle formed by the two crossed rigid materials 51, so as to expand or fold the X-shaped movable frame 5, and to raise or lower the supporting layer 1.
The oil pump is repeatedly treaded to extend the hydraulic cylinder, so that the two rigid materials are unfolded, meanwhile, the two ends of the hydraulic cylinder can freely rotate along the rotating shaft, so that the X-shaped movable frame is unfolded, and the device is lifted; one side of the X-shaped movable frame is fixed on the supporting layer, and the other side of the X-shaped movable frame freely slides, so that the X-shaped movable frame can be kept stable while being deformed; the two X-shaped movable frames are respectively provided with a hydraulic cylinder and independently deform, so that the loss caused by mutual angular force due to size error caused by rough machining is avoided; the two hydraulic cylinders are provided with independent valves, and when one hydraulic cylinder is damaged, the other hydraulic cylinder is not influenced.
As shown in fig. 1, a pair of directional wheels 41 and a pair of universal wheels 42 are mounted on the lower portion of the base 4, the directional wheels 41 being mounted on one side of the front end bracket 31, and the universal wheels 42 being mounted on one side of the rear end bracket 32.
Push tail nozzle below from back to front when the device, the directional wheel is in the front, and the universal wheel is in the back, and the device the place ahead can't remove about, can only through rear fine setting direction, takes place the displacement when preventing to dismantle, dismantles the back that finishes, withdraws the device from the past backward, and the universal wheel is in the front, and the directional wheel is in the back, conveniently adjusts the advancing direction.
The above-mentioned embodiments of the present invention are not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included in the protection scope of the present invention.
Claims (10)
1. An engine jet nozzle lifting device, comprising: the oil pump device comprises a profiling bracket, a supporting platform, an undercarriage, an oil pump and a base, wherein the bottom of the profiling bracket is arranged at the upper part of the supporting platform, the top of the undercarriage is arranged at the lower part of the supporting platform, the bottom of the undercarriage is arranged at the base, and the oil pump is arranged at the base; the profiling bracket is in a long strip shape, the top of the profiling bracket is in a radian shape of the tail nozzle of the engine and comprises a front end bracket and a rear end bracket, the height of the front end bracket is less than that of the rear end bracket, the front end of the tail nozzle of the engine is lifted, and the rear end bracket is parallel to the front end bracket and lifts the rear end of the tail nozzle of the engine; the undercarriage comprises a pair of X-shaped movable frames and a pair of hydraulic cylinders which are parallel to each other, the X-shaped movable frames are formed by crossing two rigid materials, are connected at the crossing positions through rotating shafts and rotate along the rotating shafts, two ends of each hydraulic cylinder are respectively connected with the two rigid materials through the rotating shafts and simultaneously rotate along the two rotating shafts in a combined mode, and the two hydraulic cylinders are respectively provided with independent valves; the oil pump is connected with the hydraulic cylinder, so that the hydraulic cylinder is extended or shortened, and an included angle formed by the intersection of the two rigid materials is adjusted to open or fold the X-shaped movable frame, so that the supporting platform is lifted or lowered; a pair of slide rails is respectively installed on the lower portion of the supporting platform and the upper portion of the base, the top end of the rigid material slides in the slide rails of the supporting platform, and the bottom end of the rigid material slides in the slide rails of the base.
2. The engine jet nozzle lifting device according to claim 1, wherein the profiling bracket is formed by combining a plurality of vertical inserts, and the vertical inserts of different combinations form different profiling notches corresponding to engine jet nozzles with different radians.
3. The device for lifting the engine exhaust nozzle according to claim 1, wherein the top of the profile bracket is made of an anti-slip material to increase the friction coefficient of the contact surface of the profile bracket and the engine exhaust nozzle, and belts are mounted on two sides and are bound around the engine exhaust nozzle.
4. The engine jet nozzle lifting device according to claim 1, wherein the front end bracket is provided with an outer side mounting baffle plate which is higher than the profiling notch and prevents the engine jet nozzle from moving to the outer side of the front end bracket.
5. The engine exhaust nozzle lifting device according to claim 1, wherein the X-shaped movable frame has a top end fixed to the slide rail of the support platform through a rotating shaft, a bottom end provided with a pulley and sliding in the slide rail of the base, and a bottom end fixed to the slide rail of the base through a rotating shaft, and a top end provided with a pulley and sliding in the slide rail of the support platform.
6. The engine jet nozzle lift apparatus of claim 1, wherein said oil pump comprises: the oil pump is characterized by comprising an oil pipe, an oil tank, an air pump, a pedal, a spring, an ejector pin, a roller wheel, a pressure rod, a connecting rod and a pedal rod, wherein two ends of the oil pipe are connected with a hydraulic cylinder and the oil tank; a back plate is arranged at the top of the oil tank, a pressure rod is conical and is attached to the back plate, and an included angle is formed between the pressure rod and the vertical direction; the pedal rod is parallel to the ground and is vertical to the connecting rod, and the pedal rod is pressed down to enable the connecting rod and the pressure rod to rotate and drive the roller to press down the thimble; the spring reset thimble bounces to drive the pressure lever and the connecting rod to rotate, so that the pedal lever is lifted;
the thimble is pushed down to make the air pump press the oil pressure of the oil tank to the hydraulic cylinder, the pedal is pushed down, the air pump is opened to make the oil flow of the hydraulic cylinder return to the oil tank.
7. The apparatus of claim 1, wherein the base has a pair of guide wheels and a pair of universal wheels mounted on a lower portion thereof, the guide wheels being mounted on a side of the front bracket, the universal wheels being mounted on a side of the rear bracket.
8. The engine jet nozzle lift apparatus of claim 1, wherein said support platform comprises: the two profiling brackets are respectively arranged at the upper parts of the two lifting layers, the two lifting layers are respectively arranged at the upper parts of the two translation layers, and the two translation layers are arranged at the upper parts of the supporting layer; the inner sides of the lifting layer and the translation layer are connected through a plurality of pairs of hinges so that the lifting layer rotates along the hinges; the contact surfaces of the translation layer and the support layer are connected through a rack structure, so that the translation layer slides along the contact surfaces; the lower part of the supporting layer is provided with a sliding rail which is connected with the undercarriage.
9. The engine jet nozzle lifting device according to claim 8, wherein a shroud collar is mounted on an outer side of the lifting layer and the profile bracket; the outer side of the translation layer is provided with a worm, the worm consists of a worm wheel and a screw rod, and the outer edge of the worm wheel is meshed with the screw rod; the top end of the screw rod is connected with the wrapping hoop, and the worm wheel rotates to enable the screw rod to move up and down and drive the profiling bracket to move synchronously.
10. The engine jet nozzle lifting device according to claim 8, wherein a pair of gears are mounted on the lower portion of the translation layer, the gears are parallel to the translation layer, and the shaft center is connected with the translation layer through a rotating shaft and rotates along the rotating shaft; the upper part of the supporting layer is provided with a pair of grooves which are parallel to each other, and the grooves are respectively provided with a guide rail which is vertical to the profiling bracket; a pair of gears on the same translation layer are respectively embedded into the two guide rails, one side of each guide rail is provided with teeth, the other side of each guide rail is smooth, the diameter of each gear is the same as the width of each guide rail, the outer edges of the gears are meshed with the toothed edges of the guide rails to form a toothed rail structure, and the toothed rail structure rotates along the guide rails to drive the translation layer to synchronously slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021657291.9U CN212769648U (en) | 2020-08-11 | 2020-08-11 | Engine tail nozzle lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021657291.9U CN212769648U (en) | 2020-08-11 | 2020-08-11 | Engine tail nozzle lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212769648U true CN212769648U (en) | 2021-03-23 |
Family
ID=75051411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021657291.9U Expired - Fee Related CN212769648U (en) | 2020-08-11 | 2020-08-11 | Engine tail nozzle lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212769648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310972A (en) * | 2022-03-01 | 2022-04-12 | 山东建筑大学 | A rotary balance lifts platform for installation of arc support |
-
2020
- 2020-08-11 CN CN202021657291.9U patent/CN212769648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310972A (en) * | 2022-03-01 | 2022-04-12 | 山东建筑大学 | A rotary balance lifts platform for installation of arc support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212769648U (en) | Engine tail nozzle lifting device | |
| CN103938532B (en) | A kind of ultra-high pressure water fluid jet airfield runway is except glue is except graticule actuating unit | |
| CN206232160U (en) | For the automatic unloading equipment unloaded | |
| CN106315452B (en) | A kind of automobile engine automatic disassembling device | |
| CN107522138A (en) | A kind of hand-push manpower pitches goods device | |
| CN114658922A (en) | Pressure steel pipe mounting bracket convenient to high-efficient alignment | |
| CN117361407A (en) | Auxiliary maintenance equipment for power communication | |
| CN108819503A (en) | A kind of cloud printer fixed bracket of sliding | |
| CN210836815U (en) | Sand table for building layout | |
| CN110104188A (en) | Emergency rescue device and method after blowing out for airplane wheel | |
| CN211419502U (en) | Automatic platform of dispatching a car | |
| CN216104320U (en) | Aluminum alloy section jacking moves and carries conveyor | |
| CN211520871U (en) | Draw hollow tube device | |
| CN116411831A (en) | Oil pipe calandria pipe supply device capable of being moved rapidly | |
| CN209740663U (en) | Automatic bottle arranging device | |
| CN110252930B (en) | Wheeled sliding clamping equipment | |
| CN110963451A (en) | Automatic platform of dispatching a car | |
| CN206436433U (en) | Tire shaving machine | |
| CN218539173U (en) | Movable lifting transfer platform | |
| CN219215063U (en) | Color set unit replacement carrying device of flexo printing machine | |
| CN219794895U (en) | Rail guard is used in construction is built in room | |
| CN213406144U (en) | Drag hook for hip joint operation | |
| CN216759821U (en) | Steel structure high-altitude welding operation construction platform | |
| CN221394056U (en) | Adjustable aircraft maintenance hydraulic vehicle convenient to remove | |
| CN220786485U (en) | Auto-parts shaping conveyor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |