CN209578732U - Rotate the tooling and force limiting device of Turbomachine Rotor inner cavity - Google Patents

Abstract

The purpose of this utility model is to provide a kind of force limiting device, including bearing unit and limiter yaw, bearing unit includes mounting portion and hole supporting mechanism；Limiter yaw includes: first gear group, including the first input gear, the first output gear and intermediate gear；Second gear group, including the second input gear and the second output gear；Static cabinet, the first input gear, intermediate gear and the second input gear are rotationally arranged at static cabinet；And tilting block, first output gear is rotationally arranged at tilting block, second output gear is fixed on tilting block and is rotatably attached with static cabinet, moreover, the second output gear is relative to the rotation axis of static cabinet and the rotation axis coincident of intermediate gear.The utility model also provides a kind of tooling for rotating Turbomachine Rotor inner cavity.Above-mentioned force limiting device can facilitate access for rotor internal cavity and carry out limiter, and the support with sufficient intensity to fastener.

Description

Rotate the tooling and force limiting device of Turbomachine Rotor inner cavity

Technical field

The utility model relates to a kind of force limiting device, in particular to a kind of tooling for rotating Turbomachine Rotor inner cavity.

Background technique

The rotor component of rotation turbomachinery is generally bolted by multistage, these bolts generally all in rotor internal cavity, Since rotor internal cavity entrance is small, depth is big, and inner-cavity structure is complicated, and operative radius is much larger than rotor internal cavity where bolt between disk Entrance, so the bolted assembly in inner cavity is always the problem in assembly.Nut is the most typical connection of rotor internal cavity between disk One of nut, on the one hand such nut is between two-stage rotor discoid part, and spacing is very small between disk, generally in 20~40mm Left and right；Operative radius relative maximum where another aspect nut, assembly are the most difficult.Traditional handicraft is for spiral shell between rotor internal cavity disk Bolt assembly is generally used in conjunction with using reflective mirror and tooling, in operating space in the case where very little, is tightened low efficiency, is tightened quality It cannot be guaranteed that.

In addition, traditional tooling and tool use artificial limiter, the torque arm torsion pass for needing a root long long, by torque spanner Torque pass on the gear set of tappet head, then be transmitted to nut to be tightened.Limitation and tooling due to the small entrance in inner cavity is more Functional requirement, diameter for torsion bar are limited very small, and in high-torque limiter, torque arm is easily deformed, so that power output Square precision is not high, and the reliability of tooling is relatively low.Due on transmission path (including torque arm and gear set) during limiter Moment decaying, input torque requirement is very big, causes the labor intensity of operator very big.Along with limiter operation is rotor The blind dress of inner cavity needs to guarantee that tooling can not touch rotor internal cavity, needs significant care, so the efficiency of the position nut limiter Also very low.

For example, Chinese invention patent CN108098687A discloses a kind of aero-engine inside limiter nut assembly dress It sets, limiter nut assembling device includes that nut Fast Installation component and nut limiter tighten component inside the aero-engine；Spiral shell Female Fast Installation component includes panel body, the first position-arresting disk, driving gear, end gear, multiple transmission gears, limit bolt And spanner；Panel body includes horizontal gear mounting plate, arc vertical plate and position-arresting disk mounting plate；Nut limiter tightens component packet Include the second position-arresting disk, horizontal connecting plate, guide block, gag lever post, first sleeve, horizontal connection block and adapter.The aeroplane engine Limiter nut assembling device enables to the assembling process of nut not limited by assembly space inside machine.

The utility model is intended to design a kind of force limiting device, can be adapted for the tight of such as above-mentioned rotor internal cavity of complicated inner cavity Firmware limiter provides a kind of scheme of strong limitation complex space component assembly.

Utility model content

The purpose of this utility model is to provide a kind of force limiting devices, can facilitate access for complicated inner cavity such as rotor internal cavity And limiter, and the support with sufficient intensity are carried out to fastener such as nut.

The utility model provides a kind of force limiting device, comprising: bearing unit, comprising: mounting portion is set to the bearing The one end of unit in the axial direction；With hole supporting mechanism, it is set to the other end of the bearing unit in the axial direction, including is arranged to Radially movable top bracing member is radially stayed on duct inner wall by top bracing member and is supported in duct；And limiter yaw, In The side towards the hole supporting mechanism of the mounting portion is set in axial direction, comprising: first gear group, comprising: first is defeated Enter gear, receives the first input torque；First output gear exports the first output torque；And intermediate gear, it is defeated by described first Enter gear and first output gear is sequentially connected；Second gear group, comprising: the second input gear receives the second input power Square；Second output gear is sequentially connected with second input gear, exports the second output torque；Static cabinet, by the branch Bearing unit bearing, first input gear, the intermediate gear and second input gear are rotationally arranged at The static cabinet；And tilting block, first output gear are rotationally arranged at the tilting block, described second is defeated Gear is fixed on the tilting block and is rotatably attached with the static cabinet out, moreover, second output gear Relative to the rotation axis of the static cabinet and the rotation axis coincident of the intermediate gear.

In one embodiment, the hole supporting mechanism is separably set to the bearing unit.

In one embodiment, the bearing unit includes abutting part；The hole supporting mechanism includes rotating part, described Rotating part is rotationally arranged at the hole supporting mechanism by bearing；The bearing unit passes through described in abutting part abutting Rotating part and connect the hole supporting mechanism.

In one embodiment, the hole supporting mechanism includes: guide table；Movable part is set relative to the guide table It is set to and is axially movable；And multiple linkage components, each linkage component includes: the top bracing member, in the guide table It is arranged to radially movable；And second connecting rod, one end are articulated with the movable part, the other end is articulated with the top bracing member.

In one embodiment, each top bracing member is provided in radial outer end shores block, multiple diameters for shoring block Exterior surface constitutes the peripheral surface of a cylinder.

In one embodiment, the bearing unit includes axially extending cylindrical stent, and the cylindrical stent is in axis Upwards include large diameter portion and small diameter portion, the large-diameter portion constitutes the mounting portion, the small diameter portion be located at large-diameter portion with it is described The inner wall of the identical side of hole supporting mechanism, the small diameter portion limits axial space；The limiter yaw have contraction state and State is shown, in the contraction state, the limiter yaw is located in the axial space；State, the limit are shown described Power yaw receives second input torque via described in second output gear drive by means of second input gear Tilting block swings and shows the axial space.

In one embodiment, the force limiting device further includes power packages, provides power for the force limiting device.

In one embodiment, the power packages are installed on the mounting portion.

In one embodiment, the power packages include: indexing power source, are drivingly connected the rotation of the limiter yaw Component rotation；Limiter power source is drivingly connected the first transmission parts rotation of first input gear；Swing power source, institute It states and swings the second transmission parts rotation that power source drive connects second input gear；With lifting drive source, the lifting Indexing power source, the limiter power source described in power source drive, the swing power source and the limiter yaw are whole along axis To movement.

The utility model also provides a kind of tooling for rotating Turbomachine Rotor inner cavity, which is characterized in that including above-mentioned Force limiting device, the mounting portion of the force limiting device are fixed on the inlet of rotor internal cavity, and the limiter yaw is placed in rotor internal cavity Central passage.

The force limiting device of the utility model design using exquisite mechanical structure design, enable a device to from small entrance into Enter, avoid the labyrinth limitation of complicated inner cavity such as rotor internal cavity, and opened in the complicated inner cavity, realizes big operative radius Blind dress operation.

The force limiting device makes full use of complicated inner cavity such as rotor internal cavity space to reduce power for built in limiter power source Transmission path improves Torque Control precision, to realize high-precision limiter；Wherein, the design of limiter power source docking structure, can Power source is completed to control mechanical mechanism to dock with input driving member.

Design of the supporting mechanism as support and anti-twisted structure, makes full use of all in the force limiting device of the utility model design As rotor internal cavity this structure and design support construction, device stress deformation when reducing high-torque output, improve device can By property, reduces torque and transmit attenuation rate, the real time dynamic measurement and device that can be easy to implement device output torque operated The automation control of journey.

The force limiting device of the utility model design can overcome complicated inner cavity such as rotor internal cavity to be threadedly coupled the skill assembled The limitation of art demand and traditional tooling.

Detailed description of the invention

It is to provide and being further understood to the utility model including attached drawing, they are included and constitute one of the application Point, attached drawing shows the embodiments of the present invention, and the work for explaining the utility model principle is played together with this specification With.In attached drawing:

Fig. 1 is the structural schematic diagram that force limiting device is applied to rotor internal cavity.

Schematic diagram when Fig. 2 is from the downside of Fig. 1.

Fig. 3 is the schematic diagram that limiter yaw is in contraction state.

Fig. 4 is the schematic diagram that limiter yaw is in state of showing.

The schematic diagram of hole supporting mechanism when Fig. 5 is from the upside of Fig. 1.

Fig. 6 is the perspective view of hole supporting mechanism.

Fig. 7 is the schematic diagram of hole supporting mechanism and installing mechanism cooperation.

Fig. 8 is the perspective view of the second actuated piece of installing mechanism.

Fig. 9 is the perspective view of hole support device.

Specific embodiment

The utility model is described in further detail with attached drawing With reference to embodiment, illustrates in the following description More details are in order to fully understand the utility model, but the utility model obviously can be different from this description with a variety of Other way implement, those skilled in the art can be without prejudice to the utility model connotation according to practical application Situation makees similar popularization, deduces, therefore should not limit the protection scope of the utility model with the content of this specific embodiment.

For example, the fisrt feature then recorded in the description above second feature or above formed, may include The embodiment that first and second features are formed by way of directly contacting also is included in shape between the first and second features At the embodiment of supplementary features, to can not directly be contacted between the first and second features.In addition, in these disclosures It may repeat reference numerals and/or letter in different examples.The repetition is in order to brief and clear, itself is not indicated Each embodiment and/or interstructural relationship being discussed.Further, when first element is with being connected with second element or tie What the mode of conjunction described, which includes the embodiment that the first and second elements are connected directly or are bonded to each other, and also includes adopting The first and second interelements ground connection is set to be connected or be bonded to each other with one or more other intervening elements additions.

As shown in the utility model, unless context clearly prompts exceptional situation, the words such as " one ", "an" and/or "the" Odd number is not refered in particular to, may also comprise plural number.It is, in general, that term " includes " and "comprising" only prompt to include the step clearly identified Rapid and element, and these steps and element do not constitute one it is exclusive enumerate, method or apparatus may also include others Step or element.

For the convenience of description, herein may use such as " under ", " lower section ", " being lower than ", " following ", " top ", "upper" Etc. spatial relationship word the relationships of an elements or features shown in the drawings and other elements or feature described.It will reason Solve, these spatial relationship words be intended to encompass in use or device in operation, other than the direction described in attached drawing Other directions.For example, being described as be in other elements or feature " below " or " under " if overturning the device in attached drawing Or the direction of the element of " following " will be changed to " top " in the other elements or feature.Thus, illustrative word " under Side " and " following " can include upper and lower both direction.Device may also have other directions (to be rotated by 90 ° or in its other party To), therefore spatial relation description word used herein should be interpreted accordingly.In addition, it will also be understood that being referred to as when one layer at two layers " between " when, it can be only layer between described two layers, or there may also be one or more intervenient layers.

It should be noted that these and subsequent other attached drawings are only as an example, it is not to be according to equal proportion What condition was drawn, and should not be construed as limiting in this, as the protection scope to the utility model actual requirement.In addition, different Mapping mode under embodiment can carry out appropriately combined.

Fig. 1 schematically illustrates the situation that force limiting device 100 is applied to rotor internal cavity 200a.Rotor 200 is turbine The rotor assembly of tool, nut M are nut to be assembled in other words to limiter nut.Force limiting device 100 is needed from 200 upper end of rotor Entrance B enters the central passage A of rotor internal cavity 200a, the limit such as is attached the names of pre-determined candidates, pre-tightened or tightened to the nut M in limitation space Power operates, and the operative radius at nut M is greater than the radius of small entrance B.The force limiting device 100 of the utility model design, can be with Enter from entrance B, arrival trails again when the height of limiter nut M reaches required operative radius.Central passage A is Cylindrical shape.The downside that Fig. 1 also shows in the rotor internal cavity 200a of rotor 200 to limiter nut M also has core hole H. For ease of description, the up and down direction in Fig. 1 is limited to the extending direction of the central passage A of axial D1 namely rotor internal cavity； It will perpendicular to either axial D1 to radial D2, the left and right directions in Fig. 1 is limited to be radial direction a D2, radial D2 in Fig. 1 Namely the diametrical direction of rotor, radial D2 include diametrically extending multiple directions.In following description, axial D1 and diameter It can also be referred to as bearing unit 1 axially and radially to D2.

In the following description, force limiting device 100 is used to carry out limiter, hole support device to the attaching nut of rotor internal cavity 6 are used to support in the core hole of rotor internal cavity, and in another embodiment, force limiting device 100 can be used for multiple to other Fastener in the structure of miscellaneous inner cavity class carries out limiter, and fastener for example can be nut, bolt etc., and hole support device 6 It can be used for the supporting role of the structure of other complicated inner cavity classes.

Referring to Fig. 1, force limiting device 100 includes bearing unit 1 and limiter yaw 2.

Bearing unit 1 includes mounting portion 11, and mounting portion 11 is set to the one end of bearing unit 1 on axial D1 (in Fig. 1 Upper end).In illustrated embodiment, bearing unit 1 includes the cylindrical stent 10 extended along axial D1, and cylindrical stent 10 is in axial D1 Upper includes large diameter portion and small diameter portion 12, and large-diameter portion constitutes mounting portion 11 above-mentioned, and small diameter portion 12 is located at large-diameter portion namely mounting portion 11 downside.The inner wall of small diameter portion 12 limits cylindrical space S.Platform is formed as between the large-diameter portion and small diameter portion 12 of mounting portion 11 Rank can just be placed on rotor upper end.In another embodiment, mounting portion 11, which can be, is arranged on cylindrical stent 10 Bearing unit 1 can be installed on rotor upper end by the mounting platform by the mounting platform of side.

Bearing unit 1 further includes hole supporting mechanism 60, and it is another on axial D1 that hole supporting mechanism 60 is set to bearing unit 1 One end (lower end in Fig. 1).Hole supporting mechanism 60 includes the top bracing member 62 that can radially extend, passes through the radially example of top bracing member 62 Core hole H is supported in as D2 is stayed on as the exemplary core hole H inner wall in duct.The small diameter portion 12 and hole branch of cylindrical stent 10 Support mechanism 60 is located at the same side of the large-diameter portion of cylindrical stent 10 mounting portion 11 in other words, thus entire bearing unit 1 at least exists Upper end can be supported on rotor 200 by mounting portion 11, can be supported on rotor 200 via hole supporting mechanism 60 in lower end.

Force limiting device further includes limiter yaw 2, and limiter yaw 2 is set to supporting towards hole for mounting portion 11 on axial D1 The side (downside in Fig. 1) of mechanism 60.Limiter yaw 2 can export limiter torque.In embodiment shown in FIG. 1, limiter Yaw 2 includes limiter sleeve 20, can put fastener in limiter sleeve 20, and can be rotated under corresponding driving effect from And rotated together with the fastener wherein put, to carry out limiter operation.

The example constructions of limiter yaw 2 are described below in conjunction with Fig. 2, Fig. 3 and Fig. 4.

Referring to fig. 4, limiter yaw 2 includes first gear group 21 and second gear group 22.In Fig. 4, first gear group 21 is Upper layer gear set, second gear group 22 are lower layer's gear set.In addition, limiter yaw 2 further includes static cabinet 23 and tilting block 24.Static cabinet 23 can be supported by bearing unit 1, for example, being connected to bearing unit 1 by the fixed plate 231 in Fig. 4.Example Such as, it may refer to Fig. 2, the rod piece 111 of bearing unit 1 passes through the hole 231a being arranged in fixed plate 231 and connects static cabinet 23 It is connected to bearing unit 1.2424 can swing around static cabinet 23.

First gear group 21 includes the first input gear 211 and the first output gear 212, and the first input gear 211 can be with The first input torque is received, the first output gear 212 can receive the first output torque, and the first output torque is used for fastener Carry out limiter.For example, the first input gear 211 is connected to the limiter power source being described below, and the first output gear 212 It can connect the limiter sleeve 20 of limiter yaw 2 and limiter sleeve 20 driven to rotate.First input gear 211 is rotatably arranged In static cabinet 23, such as in Fig. 3, shaft 211a is fixed on static cabinet 23, and is set to the by swivel bearing etc The center of one input gear 211, thus the first input gear 211 is rotatable relative to shaft 211a or static cabinet 23.The One output gear 212 is rotationally arranged at tilting block 24, such as in Fig. 4, similarly with the first input gear 211, shaft 212a is fixed on tilting block 24, and the center of the first output gear 212 is set to by swivel bearing etc, thus first Output gear 212 is rotatable relative to shaft 212a or tilting block 24.

First gear group 21 further includes the transmission that the first input gear 211 and the first output gear 212 are sequentially connected out Wheel chain, the representative transmission gear train include at least one transmission gear, wherein include intermediate gear 213.With the first input gear 211 similarly, and intermediate gear 213 is rotationally arranged at static cabinet 23.In illustrated embodiment, the representative transmission gear train in addition to Further include multiple transmission gears other than intermediate gear 213, for example, it is adjacent with intermediate gear 213 engage and by torque from centre Gear 213 is transmitted to the transmission gear 214 of the first output gear 212, and transmission gear 214 is rotationally arranged at tilting block 24.In another embodiment, can be set to the first output gear 212 of tilting block 24 directly with intermediate gear 213 It is adjacent and engage.

Second gear group 22 includes the second input gear 221 and the second output gear 222, and the second output gear 222 is in the The transmission connection of one input gear 221.Second input gear 221 can receive the second input torque, and the second output gear 222 can be with The second output torque is received, the second output torque is for swinging tilting block 24 relative to static cabinet 23.For example, first is defeated Enter gear 211 and is connected to the swing power source 43 being described below.Second input gear 221 is rotationally arranged at quiet box Body 23, such as in Fig. 4, shaft 221a is fixed on static cabinet 23, and is set to the second input tooth by swivel bearing etc The center of wheel 221, thus the second input gear 221 is rotatable relative to shaft 221a or static cabinet 23.Second output gear Wheel 222 is fixed on tilting block 24, and the second output gear 222 is rotatably attached with static cabinet 23, moreover, second is defeated Gear 222 is relative to the rotation axis of static cabinet 23 and the rotation axis coincident of intermediate gear 213 out.

Referring to fig. 4, intermediate gear 213 is located at right above the second output gear 222, and the two is coaxial, for example, the second output gear Wheel 222 and intermediate gear 213 can be fixed on same shaft, which is set to static cabinet by swivel bearing etc 23, to guarantee the rotation axis of the second output gear 222 and the rotation axis coincident of intermediate gear 213.Due to the second output Gear 222 is fixedly connected with tilting block 24, above-mentioned same shaft rotation of second output gear 222 around static cabinet 23 When, tilting block 24 also with the first output gear 212 therein and transmission gear 214 around the same shaft swing, because It is the second output gear 222 relative to the rotation axis of static cabinet 23 and the rotation axis coincident of intermediate gear 213, so it The preceding transmission gear 214 engaged with intermediate gear 213 in the swing process of tilting block 24, still keep and intermediate gear 213 engagement

Fig. 3 shows the schematic diagram that limiter yaw 2 is in contraction state or original state.It is static in the contraction state Cabinet 23 and tilting block 24 are each other close to when limiter yaw 2 is placed in force limiting device 100, limiter yaw 2 is in contraction-like When state, size of the limiter yaw 2 on radial D2 is minimum, and the small diameter portion 12 that limiter yaw 2 can be located at cylindrical stent 10 limits Axial space S in.

Fig. 4 shows limiter yaw 2 and is in the schematic diagram for showing state or working condition.State, limiter are shown at this Yaw 2 receives the second input torque by means of the second input gear 221 and drives tilting block 24 to put via the second output gear 222 It moves and shows axial space S, at this point, size of the limiter yaw 2 on radial D2 is unfolded, to as shown in Fig. 2, treat limit Power nut M carries out limiter.

Fig. 6 shows the example constructions of hole supporting mechanism 60.Fig. 7 shows hole supporting mechanism 60 and installing mechanism 7 cooperates State, Fig. 8 also shows the second actuated piece of installing mechanism, and Fig. 9 schematically illustrates total construction of hole support device 6. Hole supporting mechanism 60 is described below with reference to Fig. 2 and Fig. 5 of Fig. 6 to Fig. 9 and front and including the hole branch of hole supporting mechanism 60 Support arrangement 6.

In conjunction with Fig. 2 and Fig. 6, hole supporting mechanism 60 includes movable part 61, guide table 64 and multiple linkage components 620.Activity Part 61 is arranged to move along axial D1 relative to guide table 64.Multiple linkage components 620 are circumferentially.Multiple linkage components 620 can be two or more, be four in figure.In figure, multiple linkage components 620 are circumferentially evenly arranged, in another embodiment party In formula, multiple linkage components 620 can also circumferentially nonuniform mutation operator.Each linkage component 620 includes top bracing member 62 and second Connecting rod 63.Top bracing member 62 can move radially in guide table 64, and top bracing member 62, which is suitable for rubbing with hole such as core hole H, matches It closes.In illustrated embodiment, one end 631 of second connecting rod 63 is articulated with movable part 61, and the other end 632 of second connecting rod 63 is hinged In top bracing member 62.It is moved by movable part 61 along axial D1, then passes through the induced effect of second connecting rod 63, top bracing member can be made 62 stretch radially, so that hole supporting mechanism 60 has contraction state and unfolded state.

Top bracing member 62 is additionally provided in radial outer end shores block 621, and multiple radially-outer surfaces for shoring block 621 constitute one The peripheral surface of cylinder.When top bracing member 62 is radially deployed into extreme position, multiple radially-outer surfaces for shoring block 621 The peripheral surface that core hole H is formed by cylinder can be substantially constituted, in other words the interior weekly form of the core hole H of rotor internal cavity 200a Face, so that top bracing member 62 is shored at the core hole H of rotor internal cavity 200a.

Referring to Fig. 6, guide table 64 includes axial guidance 641 and radial guidance 642.641 boot activity part 61 of axial guidance It is moved along axial direction D1.Radial guidance 642 guides top bracing member 62 to move radially.In illustrated embodiment, top bracing member 62 further includes The guide part 623 of block 621, the radial guidance 642 that there is guide table 64 guidance guide part 623 to move radially are shored in connection.Diagram In embodiment, radial guidance 642 is a guide groove radially extended, and in another embodiment, radial guidance 642 can also Think a gib block.Guide table 64 also has retainer 64a, abuts retainer 64a when shoring 621 radial inward movement of block and stops It is dynamic.

With continued reference to Fig. 6, when movable part 61 is moved to extreme position towards guide table 64 namely movable part 61 is moved down into When extreme position, the second connecting rod 63 of linkage component 620 radially extend namely figure in horizontal extension.At this point it is possible to realize certainly Lock function.

Fig. 7 and Fig. 9 shows the exemplary construction of the hole support device 6 including hole supporting mechanism 60.Wherein, Fig. 9 is shown Hole support device 6 is set to the perspective view of rotor internal cavity 200a, shows followed by the fitting machine that will be described to Fig. 7 amplification The state that structure 7 and hole supporting mechanism 60 cooperate.As shown, hole support device 6 further includes installing mechanism 7.

Referring to Fig. 7, installing mechanism 7 includes actuating group 73.Actuating group 73 includes the first actuated piece 731 and the second actuated piece 732。

First actuated piece 731 can move and contact hole supporting mechanism relative to the second actuated piece 732 along axial D1 60 movable part 61, and coupled by rotating with movable part 61.In embodiment shown in Fig. 7, movable part 61 sets for one Be equipped with externally threaded circular shaft, the first actuated piece 731 is a setting internal thread cylinder, the internal screw thread of the first actuated piece 731 with The external screw thread of movable part 61 can cooperate.

Second actuated piece 732 can be coupled by rotation with guide table 64.In embodiment shown in Fig. 7, guide table 64 are provided with card slot 64b.And referring to Fig. 8, the second actuated piece 732 is provided with clamping portion 733, and clamping portion 733 is arranged to protrude into It can be clamped with card slot 64b after card slot 64b and rotation.For example, card slot 64b be one be circumferentially in L-shaped slot, and clamping portion 733 be illustrated in figure 8 one be in L-shaped crook.

In embodiment shown in Fig. 7, the first actuated piece 731 is inner sleeve, and the second actuated piece 732 is to be set to conduct The inner sleeve of first actuated piece 731 is peripheral and the outer sleeve coaxial with the inner sleeve, the inner sleeve can be relative to the housings Cylinder is flexible along axial D1.

Referring to Fig. 9, actuating group 73 is cylindrical stent, and 731 (not shown) of the first actuated piece and the second actuated piece 732 are all arranged In the cylindrical stent.Installing mechanism 7 further includes mounting platform 71.In illustrated embodiment, mounting platform 71 is a disc-shape. Installing mechanism 7 further includes power packages 72, and power packages 72 are set to the side (upside in Fig. 9) of mounting platform 71.Actuating group 73 It is set to the other side (downside in Fig. 9) of mounting platform 71, and actuating group 73 can be rotated relative to mounting platform 71.Figure Show in embodiment, power packages 72 include the first power source 721 and the second power source 722.In figure, the first power source 721 and Two power sources 722 are all motors, and the first power source 721 and the second power source 722 are also possible to other driving devices such as hydraulic power source.

First power source 721 can drive actuating group 73 to rotate relative to mounting platform 71, to drive the first actuated piece 731 and 732 unitary rotation of the second actuated piece.For example, first power source 721 passes through intermeshing in embodiment shown in Fig. 9 First gear 721a and second gear 721b transmission and drive actuating group 73 relative to mounting platform 71 rotate.

Second power source 722 can drive the first actuated piece 731 to move relative to the second actuated piece 732 along axial D1.Example Such as, the second power source 722 can drive 731 straight line of the first actuated piece fortune by transmission mechanisms such as rack-and-pinion or feed screw nuts It is dynamic.

In embodiment shown in Fig. 7, movable part 61 is additionally provided with rectangle to interface 61a, can be convenient and other toolings Docking and match.

In embodiment shown in Fig. 9, the radial dimension of the outer sleeve as the second actuated piece 732 is than mounting platform 71 Radial dimension is small, thus, mounting platform 71 can be placed in the entrance B of rotor internal cavity 200a in other words at upper end, and second causes Moving part 732 and the first actuated piece 731 can protrude into the central passage A of rotor internal cavity 200a.

In embodiment shown in Fig. 8, the second actuated piece 732 is one and circumferentially offers evacuation linkage component 620 The cylinder of multiple openings 734.

In addition, in embodiment shown in Fig. 5, it is big in longitudinal size ratio Fig. 6 for shoring block 621 of top bracing member 62, It can increase and shore area with core hole H.In addition, the radial outer end face for shoring block 621 of top bracing member 62 can also be attached example It is such as bonded with soft material, so that the pressure and frictional force that avoid hole support device 6 from introducing cause to damage to rotor core hole, and And increase contact area.

Fig. 7 shows the schematic configuration that hole supporting mechanism 60 is in contraction state or original state.From hole supporting mechanism 60 contraction state starts, movable part 61 along axial D1 towards moving on the downside of Fig. 7, under the linkage effect of second connecting rod 63, Top bracing member 62 moves radially, to be unfolded, reaches Fig. 6 or unfolded state shown in Fig. 4.After expansion, withstood by top bracing member 62 The core hole H of rotor internal cavity 200a, can be with fixation hole supporting mechanism 60.Thus hole supporting mechanism 60 can play the work of centering With can also withstand core hole H in limiter, provide part reaction torque.

The effect of shoring of hole support device 6 is described below.

As shown in fig. 7, actuating group 73 can be made in rotor in the state that the second actuated piece 732 couples with guide table 64 It integrally moves down, entire hole supporting mechanism 60 is sent at the height of core hole H of rotor internal cavity 200a, so in the 200a of inner cavity For example hole support device 6 is mounted at the upper end of rotor 200 using mounting platform 71 afterwards, is stopped so that hole supporting mechanism 60 is whole It is stagnant at the height of core hole H, and then the first actuated piece 731 under the driving effect of the second power source 722 relative to second cause Moving part 732 moves down the effect for withstanding movable part 61 to drive movable part 61 to move down, thus can move down in movable part 61 It is lower so that top bracing member 62 is radially unfolded, until with core hole H frictional fit.

Then, the first power source 721 can drive actuating group 73 (including the first actuated piece 731 and second actuated piece 732) Towards the reverse directions rotation for being detached from the first actuated piece 731 with guide table 64, thus, installing mechanism 7 and hole supporting mechanism 60 are detached from, and then are lifted up entire installing mechanism 7, so that installing mechanism 7 withdraws rotor internal cavity 200a.That is, hole support dress After the support for setting 6 completion hole supporting mechanisms 60, guide table 64 and the first actuated piece can be detached from by the second actuated piece 733 731 remove installing mechanism 7 far from movable part 61, and installing mechanism 7 is taken out from rotor internal cavity 200a.As other behaviour of rotor internal cavity When making tooling such as above-mentioned force limiting device 100 installation, so that it may by docking with movable part 61, and realize the firm installation of tooling. Such as force limiting device 100 can be made to enter rotor internal cavity 200a, hole supporting mechanism 60 constitutes the bearing unit of force limiting device 100 1 a part.

After completing to limiter operation, in addition to hole supporting mechanism 60, the other parts of force limiting device 100 are withdrawn from rotor Chamber 200a.The dismounting of hole supporting mechanism 60 can be carried out by 7 matching hole supporting mechanism 60 of installing mechanism.

The actuating group 73 of installing mechanism 7 can be made to protrude into rotor internal cavity 200a first and then move down its entirety, and So that the card slot 64b and 732 face movable part 61 of the second actuated piece of 731 face guide table 64 of the first actuated piece, until fitting machine Until first actuated piece 731 of structure 7 protrudes into card slot 64b, then for example hole support device 6 is mounted on using mounting platform 71 At the upper end of rotor 200, so by the driving of the first power source 721 so that actuating group 73 (including the first actuated piece 731 and the Two actuated pieces 732) it is rotated towards the forward rotation direction for coupling the first actuated piece 731 with guide table 64, thus the first actuated piece 731 couple with guide table 64, and at the same time, the second power source 722 drives the second actuated piece 732 to move down, thus in the first power The rotate driving effect time in source 721 and moving down under driving effect for the second power source 722, the internal screw thread of the second actuated piece 732 With the external thread spiro fastening of movable part 61, so that the second actuated piece 732 couples with movable part 61.After connection, the first power source 721 is not Output power again, and the second power source 722 then drives the second actuated piece 732 to move up with the movable part 61 coupled therewith, So that top bracing member 62 is shunk radially inward, it is detached from core hole H, then by the related hole supporting mechanism 60 of installing mechanism 7 The whole extraction rotor internal cavity 200a of hole support device 6.

In another embodiment, hole support device 6 also may include four independent power sources, and power source can be with The first actuated piece 731 is driven to move axially, another power source can drive the first actuated piece 731 to rotate, and another power source can be with The second actuated piece 732 is driven to move axially, another power source can drive the second actuated piece 732 to rotate.

Fig. 5 is returned to, supporting mechanism 60 is separably set to bearing unit 1, that is, supporting mechanism 60 can be single with bearing Main body (including cylindrical stent 10 etc.) separation of member 1.By the way that supporting mechanism 60 is pushed up from the lower end in Fig. 1 by installing mechanism 7 It connects in the H of core hole, and supporting mechanism 60 is fixed on rotor 200, then withdraw from installing mechanism 7.

In another embodiment, supporting mechanism 60 also can connect in bearing unit 1, and bearing unit 1 includes support machine The mechanism that the top bracing member 62 of structure 60 moves radially, bearing unit 1 may include a longitudinally movable cone piece, the cone piece Conehead against the center of multiple top bracing members 62, center of the tail far from multiple top bracing members 62 is bored, when cone piece vertically moves Multiple top bracing members 62 are opened, to realize the effect of shoring.

In embodiment shown in fig. 5, the main body of bearing unit 1 includes abutting part 16.Supporting mechanism 60 includes rotating part 66, rotating part 66 for example can be rotationally arranged at supporting mechanism 60 by swivel bearing 65.The main body of bearing unit 1 passes through Abutting part 16 abuts rotating part 66 and connects supporting mechanism 60.In this way, the main body of bearing unit 1 abuts rotation by abutting part 16 When portion 66, the main body of bearing unit 1 can be rotated relative to the main body of supporting mechanism 60.In Fig. 5, abutting part 16 is cylindrical stent 10 lower end.When bearing unit 1 is connected on supporting mechanism 60 by abutting part 16, bearing unit 1 just can not be moved along axial D It is dynamic, and limit the rotation of 10 lower end of cylindrical stent, to play the role of rotation stop and anti-twisted.

Fig. 1 is returned to, force limiting device 100 further includes power packages 4, provides power for force limiting device 100.Power packages 4 include more The combination of a power source, power source such as can be motor as shown in the figure, motor acceleration and deceleration device or hydraulic cylinder.

In Fig. 1, power packages 4 include indexing power source 41, and indexing power source 41 can drive rotary part 411 to rotate, rotation Rotation member 411 connects limiter yaw 2.In illustrated embodiment, rotary part 411 is a rod piece, is set in cylindrical stent 10 Portion, upper end are connected to the output shaft of indexing power source 41, and lower end connects limiter yaw 2.Thus in the drive of indexing power source 41 Under movement is used, limiter yaw 2 can rotate, so as to rotate from one to limiter nut around the central axis of rotor 200 To next to limiter nut.As shown, indexing power source 41 for example can be the form of motor acceleration and deceleration device.

Power packages 4 can also include limiter power source 42, and limiter power source 42 can drive the first transmission parts (in figure not Show) rotation, the first input gear 211 of the first transmission parts connection limiter yaw 2.For example, the first transmission parts can be One end is connected to the rod piece that the first input gear 211 is connected as the output shaft and the other end of the motor of limiter power source 42.Cause And limiter power source 42 is used for the first input torque of limiter to the input of the first input gear 211.Power packages 4 can also include prison The torque sensor 420 of limiter torque is controlled, for example, torque sensor 420 can be arranged in limiter power source 42 and the first input In the drive path of gear 211.

Power packages 4 can also include swinging power source 43, and swinging power source 43 can drive the second transmission parts 431 to revolve Turn, the second transmission parts 431 connect the second input gear 221 of limiter yaw 2.In figure, the second transmission parts 431 are that one end connects It is connected to the rod piece that the second input gear 221 is connected as the output shaft and the other end of the motor for swinging power source 43.Thus swing Second input torque of the power source 43 to the input of the second input gear 221 for swing.

Power packages 4 can also include lifting drive source 44, and lifting drive source 44 can drive indexing power source 41, limiter dynamic This entirety of power source 42, swing power source 43 and limiter yaw 2 is moved along axial D1 together.In embodiment shown in FIG. 1, Indexing power source 41, limiter power source 42, swing power source 43 and limiter yaw 2 are all connected to cylindrical stent 10.For example, lifting Power source 44 can be installed on rotor 200, and lifting drive source 44 is motor, can pass through gear-rack drive cylindrical stent 10 It moves to drive the indexing power source 41 connecting with cylindrical stent 10 along axial direction D1, limiter power source 42, swing power source 43 It is moved integrally together with limiter yaw 2.In illustrated embodiment, indexing power source 41 is set to the mounting portion 11 of bearing unit 1, Specifically, positioned at the upper end of the large-diameter portion of cylindrical stent 10.It swings power source 43 and limiter power source 42 is located at cylindrical stent 10 Inside, specifically, be located at cylindrical space S in.Thus, lifting drive source 44 can drive entire limiter yaw 2 be moved to Height where limiter nut M.

When above-mentioned force limiting device 100 is used for rotor internal cavity attaching nut limiter, in other words, for rotating Turbomachine Rotor When the tooling of inner cavity, the mounting portion 3 of force limiting device 100 can be fixed at the entrance B of rotor internal cavity, and the merging of limiter yaw 2 turns The central passage A of sub- inner cavity.

Above-mentioned power source etc. can be motor, hydraulic power source or other driving devices or multiple motors, hydraulic power source or The combination of other driving devices.

When practical operation, it can carry out as follows:

Hole supporting mechanism 60 is mounted on the core hole H of rotor internal cavity 200a first, have been described above how to lead to It crosses installing mechanism 7 then the core hole H that hole supporting mechanism 60 is installed to rotor internal cavity 200a is removed into installing mechanism 7；

Then in the state that limiter yaw 2 is in vertical and extends, alternatively, in the case where force limiting device 100 is in retracted state, By in the lifting to the armature spindle placed vertically of force limiting device 100, the lifting drive source 44 of power packages 4 controls limiter yaw 2 and moves Second input of the power source 43 to the input of the second input gear 221 for swing is swung to specified altitude assignment, then by power packages 4 Torque drives tilting block 24 to swing and show axial space S, namely swing to limiter yaw 2 show state, so that limiter The limiter sleeve 20 of yaw 2 is located to immediately below limiter nut M；

May then pass through lifting drive source 44 drives limiter yaw 2 to move up, so that being placed in limiter sleeve to limiter nut M In 20；

Then, limiter power source 42 can input the first input torque for being used for limiter to the first input gear 211, thus Complete the limiter to nut M；

After completing limiter, the lifting drive source 40 of power packages 4 drives the related limiter yaw 2 of cylindrical stent 10 to move down, and is detached from Nut M；

Under the control of the indexing power source 41 of power packages 4, the related limiter yaw 2 of cylindrical stent 10 can rotate to second To limiter nut, limiter is carried out to limiter nut to second, and so on, until completing the limiter of all nuts.

Force limiting device 100 can overcome small entrance to limit, and be unfolded simultaneously using articulated structure in rotor internal cavity major diameter position It is operated, overcomes the limitation in narrow invisible space, power packages can be automatically controlled, pass through the accurate of each freedom degree of device Control, realizes the automation of entire limiter process, so as to improve the assembling quality of rotor assembly, relative to manual assembly, The consistency for being threadedly coupled the precision of Torque Control and repeatedly assembling can be improved in automation equipment, and greatly improves in rotor Chamber is threadedly coupled the working efficiency of assembly, greatly reduces the working strength of operator, and staff does not need empty in strong limitation Between in blindly operate, it is only necessary to simple system operatio can complete previous complicated heavy manual labor.

The above, the only specific embodiment in the utility model, but the protection scope of the utility model not office It is limited to this, any people for being familiar with the technology is in the technical scope disclosed by the utility model, it will be appreciated that the transformation expected is replaced It changes, should all cover within the scope of the utility model, therefore, the protection scope of the utility model should be with claim Subject to the protection scope of book.

Claims (10)

1. a kind of force limiting device characterized by comprising

Bearing unit, comprising:

Mounting portion is set to the one end of the bearing unit in the axial direction；With

Hole supporting mechanism is set to the other end of the bearing unit in the axial direction, including being arranged to radially movable shore Part is radially stayed on duct inner wall by top bracing member and is supported in duct；And limiter yaw, it is set in the axial direction described The side towards the hole supporting mechanism of mounting portion, comprising:

First gear group, comprising:

First input gear receives the first input torque；

First output gear exports the first output torque；With

First input gear and first output gear are sequentially connected by intermediate gear；

Second gear group, comprising:

Second input gear receives the second input torque；

Second output gear is sequentially connected with second input gear, exports the second output torque；

Static cabinet is supported by the bearing unit, first input gear, the intermediate gear and second input Gear is rotationally arranged at the static cabinet；With

Tilting block, first output gear are rotationally arranged at the tilting block, and second output gear is fixed It is rotatably attached in the tilting block and with the static cabinet, moreover, second output gear is relative to described The rotation axis coincident of the rotation axis of static cabinet and the intermediate gear.

2. force limiting device as described in claim 1, which is characterized in that

The hole supporting mechanism is separably set to the bearing unit.

3. force limiting device as claimed in claim 2, which is characterized in that

The bearing unit includes abutting part；

The hole supporting mechanism includes rotating part, and the rotating part is rotationally arranged at the hole supporting mechanism by bearing；

The bearing unit abuts the rotating part by the abutting part and connects the hole supporting mechanism.

4. force limiting device as claimed in claim 2, which is characterized in that

The hole supporting mechanism includes:

Guide table；

Movable part is arranged to be axially movable relative to the guide table；And

Multiple linkage components, each linkage component include:

The top bracing member is arranged to radially movable in the guide table；With

Second connecting rod, one end are articulated with the movable part, and the other end is articulated with the top bracing member.

5. force limiting device as claimed in claim 4, which is characterized in that each top bracing member is provided in radial outer end to be shored Block, multiple radially-outer surfaces for shoring block constitute the peripheral surface of a cylinder.

6. force limiting device as described in claim 1, which is characterized in that

The bearing unit includes axially extending cylindrical stent, and the cylindrical stent includes large-diameter portion and path in the axial direction Portion, the large-diameter portion constitute the mounting portion, and the small diameter portion is located at the side identical with the hole supporting mechanism of large-diameter portion, The inner wall of the small diameter portion limits axial space；

The limiter yaw has contraction state and shows state, and in the contraction state, the limiter yaw is located at the axis Into space；State is shown described, the limiter yaw receives second input power by means of second input gear Square drives the tilting block to swing and shows the axial space via second output gear.

7. force limiting device as claimed in claim 2, which is characterized in that

The force limiting device further includes power packages, provides power for the force limiting device.

8. force limiting device as claimed in claim 7, which is characterized in that

The power packages are installed on the mounting portion.

9. force limiting device as claimed in claim 7, which is characterized in that

The power packages include:

Power source is indexed, the rotary part rotation of the limiter yaw is drivingly connected；

Limiter power source is drivingly connected the first transmission parts rotation of first input gear；

Swing power source, the second transmission parts rotation for swinging power source drive and connecting second input gear；With

Lifting drive source, the lifting drive source drive the indexing power source, the limiter power source, the swing power source It is integrally axially moveable with the limiter yaw.

10. a kind of tooling for rotating Turbomachine Rotor inner cavity, which is characterized in that including such as any one of claims 1 to 9 institute The force limiting device stated, the mounting portion of the force limiting device are fixed on the inlet of rotor internal cavity, and the limiter yaw is placed in rotor The central passage of inner cavity.