CN107339254A

CN107339254A - The in-service adjusting means of water pump blade angle based on tooth difference driving

Info

Publication number: CN107339254A
Application number: CN201710467629.0A
Authority: CN
Inventors: 杨开好; 耿爱农; 李辛沫; 渠斌; 陈永盛; 袁隆刚; 王天雷; 王大承; 喻胜春; 胡顺彬; 杨大伟
Original assignee: Guangdong He Hai Pump Industry Machinery Co Ltd
Current assignee: Guangdong He Hai Pump Industry Machinery Co Ltd
Priority date: 2017-06-20
Filing date: 2017-06-20
Publication date: 2017-11-10
Anticipated expiration: 2037-06-20
Also published as: CN107339254B

Abstract

The invention belongs to fluid machinery technical field, is related to a kind of driving mechanical water pump adjustment of blade angle device of tooth difference, and its characteristic is：Using tooth difference driving principle and innovate the structure and layout of adjusting nut and adjusting screw rod kinematic pair, realize water pump blade meet water the angle of attack it is non-stop-machine in real time in-service regulation and control.Load mode with clamping adjusting nut is positioned using load cage and adjusting means body jointly, the support stiffness of parts greatly improved and shorten the bang path of loading force, effectively enhances the ability that device resists water pump lift axle impact；Exempt the blade adjustments motor special for falling tradition machinery formula adjusting means, significantly simplify and optimize the controlling unit of device；Using the placement scheme of All-in-One formula center clutch, reduce the quantity of key components and parts and reduce the complexity of device.The driving water pump blade angle adjusting means of tooth difference of the present invention realizes the design object of high workload reliability, low production cost and compact overall dimension.

Description

The in-service adjusting means of water pump blade angle based on tooth difference driving

Technical field

The invention belongs to fluid machinery technical field, be related to using blade as instrument go to drive the water pump of fluid media (medium), The hydraulic turbine and other fluid mechanical devices, relate in particular to a kind of regulation dress for not shutting down i.e. controllable water pump blade angle Put, more specifically to a kind of mechanical adjusting means that in-service regulation and control water pump blade angle is realized using tooth difference driving.

Background technology

Water pump and the hydraulic turbine are required to configure blade (being also blade) lifting or conveying water to target area.Many institute's weeks Know, the operating efficiencies of these water conservancy equipments and its blade meet water angle that is, " angle of attack " it is closely related.Generally, it correspond to water pump Different operating conditions, have and there must be an optimal blade angle, water pump will obtain optimal when being worked under the blade angle Water energy efficiency.Certainly, if can come according to the varying environment such as rivers and lakes water level, seasonal variations and hydrologic(al) regime background real-time Ground regulates and controls the operating angle of blade, by the output characteristics that can optimize Pump output and can save the substantial amounts of electricity charge.It is so existing big Type water pump and its unit are each equipped with adjusting without exception the device of blade angle, to being capable of root during water pump operation According to the angle of the in-service regulation and control blade of concrete condition to obtain optimal efficiency.

Currently, large pump generally implements non-stop-machine blade Angle adjustment operation using mechanical adjusting means, also The in-service operating angle for changing blade i.e. in the case where water pump does not shut down.To realize this target, traditional way is Using special a regulation motor and reducing gear, go to drive a nut-screw pair using them, by nut-screw pair Axial displacement is produced to drive one and the joining adjusting yoke of water pump blade, and remove water pump leaf by the adjusting yoke The angle of attack of piece.The advantages of this class mechanical type adjusting means is it will be apparent that on the one hand it can realize self-locking and possess well The performance of blade angle is locked, on the other hand the process of its regulation and control blade angle is very steady and accurate.Also therefore, mechanical leaf Piece angle regulator is used so far always, is especially still occupied in large pump of the impeller diameter in 1.5m to 3.1m The larger market share.

But tradition machinery formula adjusting means must be moved by execution of the special regulation motor as its adjusting means Power, the defects of thus bringing and hidden danger are very it will be evident that mainly：1. adjusting means volume can be caused after using regulation motor Become huge, it is well known that the presence of regulation motor necessarily occupies certain space, therefore the volume of tradition machinery formula adjusting means Ten/huge, the size for being especially even more higher by a motor without foundation in short transverse (about accounts for the five of device complete machine height / mono- or so), such situation not only make it that device is not compact enough, and to the starting shipment of device, install and maintenance bring it is tired It is difficult；2. cause adjusting means after using regulation motor is become more complicated by electric system, needed due to the presence of regulation motor Its defeated power supply power is individually given, extra powers with being caused the controlling unit of its mechanism significantly to increase by electric system, especially for The adjusting means of those follow-up motor types, more because the body of motor follows water pump to rotate always, it is therefore necessary to using brush and By the electric means of electric ring, so that the reliability of its power supply is poor；3. adjusting means can be caused to resist after using regulation motor The ability of water pump lift axle impact is remarkably decreased, and covers the presence because of regulation motor and the needs of its passing power so that mechanism Nut-screw pair supporting construction is unreasonable, and support link is more and power transmission chain length, causes the integral rigidity of device very weak, in other words It is difficult " lift axle " impulsive force for resisting water pump, so that adjusting means is present by top is opened and is thrown " aircraft bombing " accident potential.

In view of this, Xin Zhuanzheng bright (Japan) et al. proposes a kind of driving adjustment of blade angle device of differential gearing, referring to 4th phase in 1989《The mechanical facilities of irrigation and drainage》" vertical mixed flow pump becomes transformation of the fixed blade into adjustable vane " (high disk woods, Qi Chen are translated from: 137may 1987,《Ebara Engineering Review》)；Chinese patent ZL99216481.8 (CN2390020Y) is also carried Principle therewith similar " hydraulic turbine, water pump runner blade self-checking device " is gone out.The technical scheme that above-mentioned document proposes is The typical mechanical adjusting means category of category, its starting point be using few teeth difference method and by water pump main motor driving come reality The regulation of existing blade angle.The principles and structure of differential gearing drive device is laid out：By the rotor of water pump main motor A master gear is driven, a rolling bearing is then driven by the master gear, it is associated with the rolling bearing followed by one Electromagnetic clutch choose whether to drive certain root countershaft, and linkage has a differential gearing on the countershaft, the differential gearing Meshing relation is there are with the central gear configured on adjusting nut, when the central gear is driven and when rotating, it To drive adjusting nut rotation and and then drive adjusting screw rod to produce axial movement, take this axial displacement of adjusting screw rod to drive The adjusting yoke being connected with water pump blade, finally achieve the purpose for changing attack angle of blade.In such scheme, regulation spiral shell is realized The gist of the positive and negative bi-directional axial spor ts choice of bar is that the differential gearing is configured with the model of two kinds of different sizes, one of them The number of teeth of more one of the number of teeth of the gear ratio rolling bearing of differential gearing and the gear ratio rolling bearing of another differential gearing is few One, mutually echo therewith, it is necessary to equipped at least two countershafts and corresponding electromagnetic clutch must be set on these countershafts, it is logical Manipulation electromagnetic clutch is crossed to select different tooth difference bang paths, the forward direction movement of adjusting screw rod is achieved in or reversely moves It is dynamic, it is finally completed the increase or reduction of blade angle.Undoubtedly, the driving adjustment of blade angle device of differential gearing is excellent Point is very prominent, and it has abandoned the essential special regulation motor of tradition machinery formula adjusting means completely, therefore device is tight Gathering property and complexity are significantly taken on a new look.

However, the driving adjustment of blade angle device of differential gearing and tradition machinery formula adjusting means that above-mentioned document provides Compared to no doubt there is incomparable advantage, but it still there are not perfect enough place, be in particular in：1. set on countershaft Electromagnetic clutch to be put to rise the cost of manufacture for causing adjusting means, reason is water pump especially large pump instantly, they It is quite big to change adjusting force required during blade angle, generally in 100KN between 700KN, reflection adjusts spiral shell to driving Mother rotates the moment of torsion needed generally in the range of 120N.m to 680N.m, is that this must use more countershafts and multiple same The differential gearing of regulation drives the central gear configured on adjusting nut to combine, and in other words adjusting means must be equipped with multiple Electromagnetic clutch, not only regulate and control the electromagnetic clutch needed for adjusting nut rotating forward and must be equipped with two or more but also regulation and control regulation Electromagnetic clutch needed for nut reversion also must be equipped with two or more, and undoubtedly, increasing for electromagnetic clutch necessarily increases The cost of manufacture of adjusting means；2. electromagnetic clutch is set to cause the reliability decrease of adjusting means on countershaft, such as preceding institute State, be necessarily required to be equipped with multiple electromagnetic clutch using the scheme for setting electromagnetic clutch on countershaft, and these battery clutches The work that device must be synchronized in concert with, it is well known that more its of device cell of collaborative work breaks down general Rate is higher, can condition water pump working environment it is again very severe, the environment of hot humid further increases electromagnetic clutch appearance The possibility of failure, once some electromagnetic clutch fails, its differential gearing being responsible for will move out work and no longer divide What load served as, it is now remaining still other differential gearings of operation its loads will suddenly abruptly increase, thus occur more meters The destruction of Domino effect will no longer be small probability event, and in other words the reliability of adjusting means can be remarkably decreased；3. in pair Set differential gearing increase the radial dimension for causing adjusting means on axle, as it was previously stated, now must using more countershafts and The differential gearing of multiple same regulations drives the central gear configured on adjusting nut to combine, and is derived to offset each Meshing Pair Radial load, it is necessary to by multiple countershafts, rolling bearing, differential gearing and electromagnetic clutch use symmetric configuration structure shape Formula, thus in fact the radial dimension of adjusting means is inevitably enlarged, the differential gearing driving that in other words above-mentioned document provides Although type adjusting means can be made shorter in short transverse, its radial dimension can increase, and also mean to the tight of device Design of gathering there are negative effect；4. differential gearing is set greatly to be limited the speed reducing ratio for causing adjusting means on countershaft System, because the physical dimension of water pump main motor is very big, is restricted by it, and the size and the number of teeth of adjusting means central gear are inevitable much More than differential gearing, in other words for differential gearing compared with central gear, it is that (this is also from intensity to a small size gear really One of the reason for factor considers also to necessarily require to configure multiple differential gearings), it is well known that the speed reducing ratio number that differential gearing obtains Value is closely related with the number of its number of teeth, and the limitation that its fewer speed reducing ratio that can reach of the number of teeth of differential gearing is subject to is bigger, also Mean to be difficult now the speed reducing ratio of the big numerical value of acquisition on differential gearing by tooth difference layout, such as in the central gear number of teeth 80 (must be used the more number of teeth by water pump main motor size constrained), the rolling bearing number of teeth 20, the differential gearing number of teeth 19 or 21 In the case of (generally for speed is maximumlly obtained than effect, this number of teeth difference is all taken as the layout strategy of a poor tooth), No matter forward drive or reverse drive adjusting nut, its obtain speed reducing ratio substantially 1:20, it is well known that according to existing leaf Wheel diameter is in 1.5m to 3.1m Ordination of pump and the range of speeds of water pump main motor generally in 150r/min to 500r/min Situation, it is so big that driving adjusting nut rotates the moment of torsion needed, so that its fast ratio is typically necessary 1:60 to 1:280 Speed reducing ratio numerical value, reflection comes to be exactly that the basic number of teeth of differential gearing can not be very little, it is seen that differential gearing is set on countershaft It is difficult to meet the speed reducing ratio planning of adjusting means.

To sum up, existing machinery formula water pump blade angle adjusting means, either using regulation motor traditional scheme or It is using the driving new-type scheme of differential gearing, there are the space required further improvement with lifting.

The content of the invention

For the problems of current mechanical water pump adjustment of blade angle device, the present invention proposes a kind of poor based on tooth The in-service adjusting means of water pump blade angle of driving, it is therefore intended that：By improve the structure design of adjusting means core component with Layout, the ability that adjusting means resists water pump lift axle impact is on the one hand improved, on the other hand effectively improves the work of adjusting means Reliability, while effectively reduce the overall dimension of adjusting means.

The purpose of the present invention is such to what is be achieved：A kind of in-service regulation of water pump blade angle based on tooth difference driving Device, including adjusting means body, adjusting nut and adjusting screw rod, the adjusting means body can surround the rotary shaft of its own Line makees dead axle gyration, and the adjusting nut and adjusting screw rod are coaxially disposed with adjusting means body, adjusting nut and regulation Screw rod can drive adjusting screw rod to produce axial displacement fortune using spiral structure with one screw pair of composition, adjusting nut is merged It is dynamic；It is characterized in that：It is provided with a load cage, the force-bearing base, which covers tightly, to be solidly connected on adjusting means body or this holds Power flap and adjusting means body are structure as a whole making；Upper force-bearing plane and lower force-bearing plane are provided with the adjusting nut, Relation, upper force-bearing plane and the load cage that wherein lower force-bearing plane has mutual load with adjusting means ontological existence there are and mutually hold The relation of power, adjusting nut can only be made to turn around itself axis under the common constraint of adjusting means body and load cage Dynamic and can not make moving along its axis, described adjusting nut can have rotating forward, reversion and quiet relative to adjusting means body Only three kinds of running statuses；It is provided with first central gear being coaxially laid out with adjusting means body, second centre tooth Wheel and the 3rd central gear, first central gear, which is matched somebody with somebody, to be connected on adjusting means body and receives adjusting means body Driving or first central gear and adjusting means body are structure as a whole making；It is provided with coaxial with adjusting means body The relay bar of layout, the relay bar is with being connected on adjusting nut or the relay bar and adjusting nut are structure as a whole making, institute Stating relay bar can drive adjusting nut to operate；It is provided with an actionless mounting and at least a countershaft, the countershaft is complete Portion is installed in rotation on mounting, and a No.1 gear is fitted with each countershaft while is fitted with No. two teeth Wheel or/and No. three gears, and an at least countershaft is fitted with No. two gears, an at least countershaft is fitted with No. three Gear, described No.1 gear, No. two gears and No. three gears coaxially be connected on or integration be produced on where it On countershaft, wherein No.1 gear often engages with the holding of the first central gear, No. two gears often engage with the holding of the second central gear, No. three gears keep often engaging with the 3rd central gear；Be provided with No. two clutches and No. three clutches, No. two from Clutch is matched with second central gear and No. two clutches are responsible for determining whether this second central gear is real with relay bar Power transmission linkage, No. three clutches and the 3rd central gear pairing and No. three clutches is applied to be responsible for determining this 3rd centre tooth Wheel whether with relay bar implement power transmission linkage；Described No. two clutches and No. three clutches accord with the working condition of synchronization Merge and must take and one kind in following three kinds of logical relations can only be taken：No. two clutches disconnections and simultaneously No. three clutches are also Disconnect, No. two clutches engage but No. three clutches are disconnection simultaneously, No. two clutches disconnect but No. three clutches are to connect simultaneously Close；Countershaft where No.1 gear is driven operating by the first central gear and drives it by the No.1 gear operates, and then by this Countershaft drives No. two gears, No. three gear operations being fitted in thereon, is then driven respectively by this No. two gears and No. three gears Second central gear and the operating of the 3rd central gear, the described in when No. two clutches disconnect and No. three clutches also disconnect simultaneously Two central gears and the 3rd central gear disconnect drive connection, when No. two clutches engage but No. three clutches simultaneously with relay bar When device disconnects by and the operating of relay bar is only driven, when No. two clutches disconnect but simultaneously by No. two clutches and the second central gear During the engagement of No. three clutches by and the operating of relay bar is only driven by No. three clutches and the 3rd central gear；By the first central gear The ratio between the number of teeth of the number of teeth and No.1 gear obtain the first speed ratio, by No. two gears the number of teeth and the second central gear the number of teeth it Than obtaining the second speed ratio, by the ratio between number of teeth of the number of teeth and the 3rd central gear of No. three gears the 3rd fast ratio of acquisition, described the One speed more than the one, described first speed with its numerical value of the product of the second fast ratio than its numerical value with the product of the 3rd fast ratio than being less than One.

Further, above-mentioned adjusting means is provided with containment member, the containment member follow adjusting screw rod move and with regulation The outer cylinder motion seal of nut coordinate or the containment member be connected on adjusting nut and with the polished rod column jacket of adjusting screw rod Face motion seal coordinates.

Further, above-mentioned relay bar offers the duct of hollow form, is additionally provided with one and is inserted through the relay rod aperture road Displacement signal bar, the displacement signal bar is fastenedly connected on adjusting nut or the displacement signal bar and adjusting nut are one Body structure fabrication.

Further, it is provided with main thrust axle between the lower force-bearing plane and adjusting means body of the above-mentioned adjusting nut load shaft shoulder Hold.

Further, radial positioning bearing and axial spring bearing are provided between above-mentioned mounting and adjusting means body.

Further, lower positioning bearing and upper positioning bearing are provided between above-mentioned adjusting nut and adjusting means body.

Buffering spacer or/and preloading spring are provided between above-mentioned load cage and adjusting nut upper force-bearing plane.

Above-mentioned adjusting means is provided with an emergency center gear and a reseting gear, and the emergency center gear is coaxial With being connected on relay bar or on adjusting nut, the reseting gear can engage cooperation with emergency center gear on ground.

Above-mentioned No. two clutches and No. three clutches are fitted with oil removal cover.

The number of teeth sum of above-mentioned first central gear and No.1 gear is equal to the number of teeth of the second central gear and No. two gears Sum and the number of teeth sum for being equal to the 3rd central gear and No. three gears.

The number of teeth of the central gear of gear ratio first of above-mentioned second central gear few one, the gear ratio of the 3rd central gear The number of teeth of first central gear is more one.

Above-mentioned No.1 gear, No. two gears, No. three gears have the equal number of number of teeth.

Above-mentioned the first central gear, the second central gear, the 3rd central gear have the equal number of number of teeth.

The tooth of the gear ratio No.1 gear of more one, No. three gears of the number of teeth of the gear ratio No.1 gear of above-mentioned No. two gears Number is few one.

A kind of in-service adjusting means of water pump blade angle based on tooth difference driving, including adjusting means body, adjusting nut And adjusting screw rod, the adjusting means body can make dead axle gyration, the adjusting nut around the convolution axis of its own And adjusting screw rod is coaxially disposed with adjusting means body, adjusting nut is matched somebody with somebody using spiral structure with adjusting screw rod and merges composition one Screw pair, adjusting nut can drive adjusting screw rod to produce axial displacement motion；It is characterized in that：It is provided with a load lid Seat, the force-bearing base, which covers tightly, to be solidly connected on adjusting means body or the load flap is structure as a whole with adjusting means body Make；Upper force-bearing plane and lower force-bearing plane, wherein lower force-bearing plane and adjusting means ontological existence are provided with the adjusting nut Relation, upper force-bearing plane and the load cage for having mutual load there are the relation of mutual load, in adjusting means body and load Adjusting nut can only make the rotation around itself axis and can not make moving along its axis under the common constraint of cage, described Adjusting nut can have rotating forward, reversion and static three kinds of running statuses relative to adjusting means body；It is provided with and adjusting means A first central synchronous wheel, a second central synchronous wheel and the 3rd central synchronous wheel that body is coaxially laid out, it is described First central synchronous wheel, which is matched somebody with somebody, to be connected on adjusting means body and receives driving or first central synchronous of adjusting means body Wheel is structure as a whole making with adjusting means body；The relay bar being coaxially laid out with adjusting means body is provided with, the relay bar With being connected on adjusting nut or the relay bar and adjusting nut are structure as a whole making, the relay bar can drive regulation spiral shell Mother's operating；It is provided with an actionless mounting and at least a countershaft, the countershaft is all installed in rotation on mounting On, a No.1 synchronizing wheel is fitted with each countershaft while to be fitted with No. two synchronizing wheels or/and one No. three same Step wheel, and an at least countershaft is fitted with No. two synchronizing wheels, an at least countershaft is fitted with No. three synchronizing wheels, it is described No.1 synchronizing wheel, No. two synchronizing wheels and No. three synchronizing wheels are coaxially with being connected on or integration is produced on countershaft where it On, wherein No.1 synchronizing wheel and the first central synchronous wheel, No. two synchronizing wheels and the second central synchronous wheel, No. three synchronizing wheels and the 3rd Central synchronous wheel carries out motion using timing belt and coupled with power；It is provided with No. two clutches and No. three clutches Device, No. two clutches match with the second central synchronous wheel and No. two clutches are responsible for determining that this second central synchronous wheel is It is no to be responsible for determining with the 3rd central synchronous wheel pairing and No. three clutches with relay bar implementation power transmission linkage, No. three clutches Whether this fixed the 3rd central synchronous wheel with relay bar implements power transmission linkage；No. two described clutches are with No. three clutches same The working condition at moment meets and must take and can only take one kind in following three kinds of logical relations：No. two clutches disconnect and No. three clutches also disconnect simultaneously, No. two clutches engage but No. three clutches are disconnection simultaneously, No. two clutches disconnect but same When No. three clutches be engagement；No.1 synchronizing wheel is driven by the first central synchronous wheel to be operated and drives it by the No.1 synchronizing wheel Place countershaft operating, and then driven by the countershaft and to be fitted in No. two synchronizing wheels thereon, No. three synchronizing wheels operatings, then by this two Number synchronizing wheel and No. three synchronizing wheels drive the second central synchronous wheel and the 3rd central synchronous wheel to operate respectively, when No. two clutches break Open and the second central synchronous wheel described in when No. three clutches also disconnect simultaneously and the 3rd central synchronous wheel disconnect with relay bar and passed Dynamic relation, when No. two clutches engagements but when No. three clutches disconnect simultaneously by and only by No. two clutches and the second central synchronous The operating of wheel drive relay bar, when No. two clutches disconnect but during No. three clutches engagements simultaneously by and only by No. three clutches and the Three central synchronous wheel drive relay bars operate；The ratio between number of teeth by the number of teeth and the No.1 synchronizing wheel of the first central synchronous wheel obtains the One speed ratio, obtain by the ratio between number of teeth of the number of teeth and the second central synchronous wheel of No. two synchronizing wheels the second speed ratio, by No. three synchronizing wheels The ratio between the number of teeth of the number of teeth and the 3rd central synchronous wheel obtain the 3rd fast ratio, the described first speed than the product with the second fast ratio its Numerical value is more than the one, described first speed and is less than one than its numerical value with the product of the 3rd fast ratio.

The outstanding advantages that have compared with prior art of the present invention are：Using tooth difference driving principle and combine nut-screw pair reality The axial displacement of existing adjusting screw rod, take this reliably and accurately to realize that in-service regulation and control water pump blade in real time meets water the mesh of angle 's.On the one hand the topology layout scheme with clamping adjusting nut is positioned jointly with load cage using adjusting means body, thus It greatly strengthen the support stiffness of parts and shorten the bang path of active force, be effectively improved adjusting means resistance water pump Lift the ability of axle impact；On the other hand the special regulation motor for falling tradition machinery formula adjusting means is thoroughly exempted, while in use The organization plan of centre layout All-in-One formula clutch, thus significantly simplify the control system link and structure cloth of adjusting means The complexity of office, had not only reduced the cost of manufacture of device but also had improved the functional reliability of device, while also reduced device Overall height and the radial dimension for reducing device, to realize that the compact design of adjusting means creates highly beneficial condition.

Brief description of the drawings

Fig. 1 is a kind of elevational schematic of the in-service adjusting means of water pump blade angle based on tooth difference driving of the present invention；

Fig. 2 is cross-sectional schematic diagram of the adjusting means shown in Fig. 1 at K-K directions；

Fig. 3 is its total arrangement of adjusting means shown in Fig. 1 and the mechanism simplified schematic diagram of installation.

Embodiment

With specific embodiment, the invention will be further described below, referring to Fig. 1-3：

A kind of in-service adjusting means of water pump blade angle based on tooth difference driving, including adjusting means body 1, adjusting nut 2 and adjusting screw rod 3, the adjusting means body 1 can make dead axle gyration, the regulation around the convolution axis O1 of its own Nut 2 and adjusting screw rod 3 are coaxially disposed with adjusting means body 1, i.e. the axis of the axis of adjusting nut 2 and adjusting screw rod 3 is equal Overlapped with the convolution axis O1 of adjusting means body 1 (but allow because of foozle, rigging error, stress deformation and expand with heat and contract with cold The deviation or misaligned for not influenceing adjusting means normal work occurred caused by the factors such as deformation), adjusting nut 2 and regulation spiral shell Bar 3 can drive adjusting screw rod 3 to produce axial displacement using spiral structure with one screw pair of composition, adjusting nut 2 is merged Motion, wherein adjusting means body 1 may be mounted on the hollow shaft B of water pump main motor rotor and be driven by it and rotate, and Couple with water pump blade and can change blade angle adjusting yoke A then pass through water pump main motor rotor hollow shaft B then with The adjusting screw rod 3 of this adjusting means is coupled (as indicated at 3), when adjusting nut 2 drives adjusting screw rod 3 to produce axial displacement The adjusting screw rod 3 will lift or pressure pushes away adjusting yoke A and makes axial displacement, and take this to regulate and control the operating angle of water pump blade； Herein, the structure of adjusting means body 1 can be an integrated member (not shown) or be by several zero Part matches somebody with somebody the sub-assembly (as shown in Figure 1) that loads and form, including welds, rivets, being spirally connected, clamping, being bonded or even stack The sub-assembly that mode is formed, and be optimal wherein to be spirally connected that is, use the constituted mode that screw thread construction is attached, work as tune Regulating device body 1 works as structure shape of the adjusting means body 1 using sub-assembly using that will obtain rigidity well during overall structure Flexible design, flexibly manufacture are beneficial to during formula and other parts are flexibly installed；Adjusting nut 2 and adjusting screw rod in the present invention Its secondary spiral structure of 3 screws formed can be various forms of the prior art, including screw thread constructs, screw rod structure Make, screw mandrel construction etc., the screw pair that wherein adjusting nut 2 and adjusting screw rod 3 are formed is to possess auto-lock function as most It is good；It is pointed out that the adjusting means of the present invention had both included being the adjustment of blade angle device of water pump or including for various water The adjustment of blade angle device of turbine in addition to possess blade as working cell and need to adjust other fluids of its angle of attack Blade control device in machinery；The big characteristic of the present invention is：A load cage 4 is provided with, the load flap 4 fastens (as shown in Figure 1) or the load flap 4 and adjusting means body 1 is connected on adjusting means body 1 to be structure as a whole making (not shown), load cage 4 follow adjusting means body 1 one to act as the synchronous revolving motion around convolution axis O1； Upper force-bearing plane 5a and lower force-bearing plane 5b are provided with adjusting nut 2, the upper force-bearing plane 5a and lower force-bearing plane 5b can be arranged in (not shown) at the shaft end head of the topmost of adjusting nut 2 and foot, the load that adjusting nut 2 can also be arranged in On the shaft shoulder 5 (as shown in Figure 1), wherein the load shaft shoulder 5 is fastenedly connected (not shown) or the load on adjusting nut 2 The shaft shoulder 5 and adjusting nut 2 are structure as a whole making (as shown in Figure 1), and herein, lower force-bearing plane 5b deposits with adjusting means body 1 The relation of mutual load is there are in relation, upper force-bearing plane 5a and the load cage 4 for having mutual load, so-called mutually load refers to There are the transmission incidence relation of active force between them, for example, the downward loading force that is subject to of adjusting nut 2 and gravity it is complete Portion or part are applied on adjusting means body 1 via its lower force-bearing plane 5b, and it is direct that its mode of action includes lower force-bearing plane 5b Contact is pressed against on adjusting means body 1 that (now lower force-bearing plane 5b and adjusting means body 1 in fact constitute a secondary thrust and slided Dynamic bearing pair, not shown in figure), in addition, the mode of action also include lower force-bearing plane 5b by bearing shell component (not shown) or Person is pressed against on adjusting means body 1 indirectly by a main thrust bearings 6 (as shown in Figure 1)；The present invention sets load The benefit of cage 4 is that on the one hand can implement positioning and pretension to adjusting nut 2 to have strengthened the entirety of counterpart and connector just Property, on the other hand can also effectively resist " lift axle " impact (lift axle be water pump blade occurs under some Operation Conditions regulation drawing Bar A pushes up the phenomenon of punching upwards), and upper force-bearing plane 5a and load cage 4 there are mutual load relation can just tackle it is above-mentioned The transmission and carrying of active force when various situations occur, set in addition load cage 4 can also be used to support other parts and Play a part of auxiliary or the support function of extension adjusting means body 1, similarly, above-mentioned upper force-bearing plane 5a can be contacted directly Act against on load cage 4 that (upper force-bearing plane 5a now in fact forms plain thrust bearing with load cage 4, does not show in figure Go out), upper force-bearing plane 5a can also be allowed by bearing shell (not shown) or indirect by secondary thrust bearing 7 (as shown in Figure 1) Act against on load cage 4, when " lift axle " impact particularly occurs, impulsive force caused by water pump blade can be via adjusting nut 2 Upper force-bearing plane 5a pass to load cage 4 and finally by the connector such as bolt of load cage 4 and adjusting means body 1 Etc. adjusting means body 1 is passed to, (force transmission path of situation shown in Fig. 1 is：2 → load of adjusting nut shaft shoulder 5 → on Load-carrying surface 5a → secondary thrust bearing 7 → load, 4 → adjusting means of cage body 1), it is necessary to which explanation, above-mentioned lift axle impact work Impact load forces, its transfer mode and bang path during condition are much better than the situation of tradition machinery formula adjusting means, on the one hand Bang path has obtained significantly shortening, on the other hand its active force is conveyed on adjusting means body 1 quickly, and not only device is related The rigidity of parts greatly improves and what is more important active force no longer influences the reducing gear of device, it is seen that pole of the present invention The earth optimizes the support arrangement of this chondromitiome heart kinematic pair of adjusting nut 2 Yu adjusting screw rod 3；It will be apparent that in adjusting means body 1 It can only make the rotation around itself axis with adjusting nut 2 under the common constraint of load cage 4 and can not make along its axis Mobile, the adjusting nut 2 can have rotating forward, reversion and static three kinds of running statuses relative to adjusting means body 1, right respectively Answer and drive adjusting screw rod 3 along the moving up of convolution axis O1 directions, move down and stopping is moved three kinds of situations and (or correspond to down Move, move up and stop three kinds of situations such as mobile), specific corresponding situation will determine depending on the design requirement of water pump, in other words right Answer water pump adjusting yoke A to act on blade and its angle is in increase angle respectively and (echo adjusting screw rod 3 to move up, specifically See the sets requirement of water pump), reduce angle (echoing adjusting screw rod 3 to move down, specifically to see the sets requirement of water pump) and lock Three kinds of working conditions of angle till degree (echo adjusting screw rod 3 and stop axial movement)；It should be noted that the upper force-bearing plane of the present invention 5a and lower force-bearing plane 5b they can be the form (as shown in Figure 1) of planar configuration or be the conical surface construction form (figure Not shown in), the form (not shown), the form (in figure of even other convolution surface constructions that can also be spherical surface construction It is not shown), and be its optimised form wherein in the form of planar configuration；The present invention another characteristic be：It is provided with and adjusts 8, second central gears 9 of first central gear and the 3rd central gear 10 that device body 1 is coaxially laid out are (such as Shown in Fig. 1 and Fig. 3), first central gear 8, which is matched somebody with somebody, to be connected on adjusting means body 1 and receives the driving of adjusting means body 1 (referring to Fig. 1 and Fig. 3) or first central gear 8 are structure as a whole with adjusting means body 1 and make (not shown), Described mating had both included the connection of the fastening means such as various welding, riveting, threaded connection in the present invention, also included using various The drive connection modes such as key connection, spline connection, pin connection and locking connection；Be provided with one it is same with adjusting means body 1 Relay bar 11 that axle is laid out and that adjusting nut 2 can be driven to operate, the relay bar 11, which is matched somebody with somebody, to be connected on adjusting nut 2 (such as Fig. 1 institutes Show) or the relay bar 11 and adjusting nut 2 be structure as a whole and make (not shown), wherein this relay bar 11 is with cloth Office is optimal (referring to Fig. 1 and Fig. 3) in the upper area or upper area of adjusting nut 2, because this adjusting means is optimal Distribution form is vertical structure, that is, the convolution axis O1 of adjusting means body 1 its optimal layout is plummet form (referring to Fig. 1 And Fig. 3), upper area or upper area that relay bar 11 is laid out in adjusting nut 2 are now beneficial to the transmission of mechanism Layout designs are, it is necessary to explanation, and described relay bar 11 and the coaxial layout of adjusting means body 1 are to refer to this to connect in of the invention Power bar 11 there are an one rotating shaft line and the axis of rotation overlapped with the convolution axis O1 of adjusting means body 1 (allow because There is certain deviation in fit clearance, rigging error, stress deformation, the reason such as deformation and operating vibration of expanding with heat and contract with cold, but as long as The deviation does not interfere with adjusting means normal work when occurring treats as definition of its satisfaction with overlapping of axles), relay of the present invention The structure of bar 11 can be there is the component of symmetric configuration, can also be asymmetric component, can both hit exactly with being connected on tune On section nut 2 (as shown in figures 1 and 3), even can also offsettingly with being connected on (not shown) on adjusting nut 2, wherein Be symmetrical structure with relay bar 11 and hit exactly again be connected on or integrative-structure to be produced on adjusting nut 2 be optimal feelings Shape；An actionless mounting 12 and at least a countershaft 13 (referring to Fig. 1 to Fig. 3) are provided with, described countershaft 13 is all It is installed in rotation on mounting 12, a No.1 gear 14 is fitted with each countershaft 13 while is fitted with one two Number gear 15 or/and No. three gears 16, and an at least countershaft 13 is fitted with No. two gears 15, at least a pair Axle 13 is fitted with No. three gears 16, that is, mean adjusting means of the present invention comprise at least have a No.1 gear 14, one two Number gear 15 and No. three gears 16, and wherein to assort No.1 gear 14, two simultaneously on the countershaft 13 of each Gear 15 and No. three gears 16 are best circumstance (as shown in figures 1 and 3), because can so make device obtain preferable stress shape Condition, described 14, No. two gears 15 of No.1 gear and No. three gears 16 are coaxially with being connected on or integration is produced on its institute Countershaft 13 on, i.e. 14, No. two gears 15 of No.1 gear and No. three gears 16 and the countershaft 13 where it totally rotary shaft Line O2, and this root pivot center O2 is dead axle axis and its optimal layout is to be put down with the convolution axis O1 of adjusting means body 1 Row is set (referring to Fig. 1 and Fig. 3), wherein No.1 gear 14 keep often engaging with the first central gear 8, No. two gears 15 and second Central gear 9 keeps normal engagement, No. three gears 16 to keep often engaging with the 3rd central gear 10；It is it should be noted that of the invention In the quantity of countershaft 13 be preferably two to four (depending on the sizes of adjusting force needed for water pump blade), these are secondary Axle 13 is optimal, Fig. 1 and shown in Fig. 2 be using two countershafts 13 and symmetrical in the form of using symmetrically ring cloth Situation；It is further to note that countershaft 13 its structure in the present invention can be solid structural form, can also be hollow Structural form or be the hollow structural form of part-solid bound fraction, can also be opened up on countershaft 13 various forms of Construction, such as various keyways, oil duct etc. can be opened up, especially, countershaft 13 can also include spline structure；Herein, So-called actionless mounting 12 refer to the mounting 12 relative to the pedestal C of water pump main motor, the protective cover D of adjusting means or That geo-stationary is motionless for ground, but allow its adjusting means operate during because by it is various excitation there are or Person has the motions such as various vibrations, shake and deformation；The mounting 12 of the present invention can be a complete individual member (in figure Be not shown), can also be by the sub-assembly (as shown in Figure 1) that several parts form, especially, mounting 12 and protective cover D There may be the relation of being fixedly connected (referring to Fig. 3), so can prevent mounting 12 from occurring because of moment of friction using protective cover D The phenomenon for acting on and following adjusting means body 1 to rotate；It is provided with No. two clutches 17 and No. three clutches 18 (as shown in figures 1 and 3), wherein No. two clutches 17 matched with the second described central gear 9 and this No. two from Clutch 17 be responsible for determining this second central gear 9 whether with relay bar 11 implement power transmission linkage, No. three clutches 18 with it is described 3rd central gear 10 matched and No. three clutches 18 be responsible for determine this 3rd central gear 10 whether with relay bar 11 implement power transmissions linkage, it is necessary to explanation, due to the relay bar 11 in the present invention be fastened on adjusting nut 2 or with regulation Nut 2 is structure as a whole making, thus it is described " No. two clutches 17 matched with the second described central gear 9 and No. two clutches 17 are responsible for determining whether this second central gear 9 with relay bar 11 implements power transmission linkage " also include " No. two Clutch 17 is matched with the second described central gear 9 and No. two clutches 17 are responsible for determining this second central gear Whether 9 with adjusting nut 2 implement power transmission linkage " situation, in the same manner as described " No. three clutches 18 and the 3rd described center Gear 10 is matched and No. three clutches 18 are responsible for determining whether this 3rd central gear 10 is implemented to pass with relay bar 11 Power links " also include that " No. three clutches 18 are matched with the 3rd described central gear 10 and No. three clutches 18 Be responsible for determining whether this 3rd central gear 10 with adjusting nut 2 implements power transmission linkage " situation；No. two clutches 17 with No. three clutches 18 meet in the working condition of synchronization and must take and can only take one in following three kinds of logical relations Kind：1. No. two clutches 17 disconnect and No. three clutches 18 also disconnect simultaneously, now the second central gear 9 and the 3rd central gear 10 are in the relation for disconnecting transmission with relay bar 11, echo relay bar 11 and do not drive adjusting nut 2, in other words adjusting means Body 1, adjusting nut 2, adjusting screw rod 3 and relay bar 11 are in the state of geo-stationary, that is, mean now water pump Blade is locked in be maintained in other words under some angle that meets water and worked；2. No. two clutches 17 engage but simultaneously No. three from Clutch 18 for disconnect, now the second central gear 9 by reach with relay bar 11 drive motion and power relation and the 3rd center Gear 10 is then in the relation for disconnecting power and coupling with relay bar 11, and power transfer path at this moment is：Adjusting means body 1 → The central gear 9 (No. two clutches 17) of first 14 → countershaft of central gear 8 → No.1 gear, 13 → No. bis- gears 15 → the second → Relay bar 11 → adjusting nut, 2 → adjusting screw rod, 3 → adjusting yoke A, so that adjusting screw rod 3 is produced along convolution axis O1 The axial movement in direction simultaneously drives adjusting yoke A to make corresponding movement；3. No. two clutches 17 disconnect but No. three clutches simultaneously Device 18 for engagement, now the 3rd central gear 10 by reach with relay bar 11 drive motion and power relation and the second centre tooth Wheel 9 is then in the relation for disconnecting power and coupling with relay bar 11, and power transfer path at this moment is：Adjusting means body 1 → the One central gear 8 → No.1 gear 14 → countershaft, 13 → No. tri- gears 16 → the 3rd central gear 10 (No. three clutches 18) → connect Power bar 11 → adjusting nut, 2 → adjusting screw rod, 3 → adjusting yoke A, and adjusting screw rod 3 is produced along convolution axis O1 side To and with the above 2. opposite axial movement of situation, while also adjusting yoke A is driven to make corresponding movement；No.1 gear 14 by First central gear 8 drives operating and drives countershaft 13 where it to operate by the No.1 gear 14, and then is driven by the countershaft 13 15, No. three gears 16 of No. two gears being fitted in thereon operate, and are then driven respectively by this No. two gears 15 and No. three gears 16 again Operate the second central gear 9 and the 3rd central gear 10, when No. two clutches 17 disconnect and No. three clutches 18 also break simultaneously Second central gear 9 described in when opening and the 3rd central gear 10 disconnect drive connection, when No. two clutches 17 with relay bar 11 When engagement but simultaneously No. three clutches 18 disconnect by and only drive relay bar 11 to transport by No. two central gears 9 of clutch 17 and second Turn, when No. two clutches 17 disconnect but No. three clutches 18 engage simultaneously by and only by No. three centre tooths of clutch 18 and the 3rd The driving relay of wheel 10 bar 11 operates；It is seen that the present invention can only with No. two clutches 17 of a center layout The second central gear 9 is set to receive the driving of No. two multiple gears 15 simultaneously and drive relay bar 11 to operate, similarly Be only with one center layout No. three clutches 18 can so that the 3rd central gear 10 can receive simultaneously it is multiple The driving of No. three gears 16 and drive relay bar 11 to operate, that is, mean the present invention can realize All-in-One formula center layout Clutch manipulate the operating condition of adjusting nut 2, it is possible thereby to significantly save, conventional tooth difference is driving to be used Multiple clutches are (no less than No. two clutches 17 in two similar present invention while in also no less than the two similar present invention No. three clutches 18) situation, this obviously for reduce device core component so that improve device functional reliability it is equal With very important realistic meaning；In the present invention, by the ratio between number of teeth of the number of teeth and No.1 gear 14 of the first central gear 8 Obtain the first fast ratio, compared, by No. three teeth by the number of teeth and the ratio between the number of teeth of the second central gear 9 speed of acquisition second of No. two gears 15 The ratio between number of teeth of the number of teeth and the 3rd central gear 10 of wheel 16 obtains the 3rd fast ratio, and the described first speed with the second fast ratio than multiplying Its numerical value of product is more than the one, described first speed and is less than one than its numerical value with the product of the 3rd fast ratio；Under said circumstances, this hair The moving direction of bright middle adjusting screw rod 3 is by depending on the direction of rotation of adjusting means body 1 and adjusting nut 2 and adjusting screw rod 3 this hand of spiral to kinematic pair, a specific example are：Assuming that adjusting means body 1 is to rotate clockwise (when convolution axis O1 is from plummet is laid out and carried out from overlook direction), and the helical structure of adjusting nut 2 and adjusting screw rod 3 is dextrorotation structure Make, then when being in the situation that No. two clutches 17 engage but No. three clutches 18 disconnect simultaneously will corresponding adjusting screw rod 2 be in The process of upper lifting, on the contrary it will correspond to when being in the situation that No. two clutches 17 disconnect but No. three clutches 18 engage simultaneously Adjusting screw rod 2 is in the process of falls downward；Especially, it should be noted that No. two clutches 17 and No. three clutches in the present invention Device 18, they can be electromagnetic clutch or be the clutches that magnetic powder cluth can also be other existing forms, its In to use electromagnetic clutch as optimised form because so can be with simplified control system.It is clear that the present invention is poor using tooth Driving principle and the axial displacement that adjusting screw rod 3 is realized with reference to nut-screw pair, take this to realize in-service regulation and control water pump leaf in real time Piece meets water the purpose of angle：On the one hand positioned jointly and clamping adjusting nut 2 with load cage 4 using adjusting means body 1 Topology layout scheme, it thus greatly strengthen the support stiffness of parts and shorten the bang path of active force, effectively improve The ability of adjusting means resistance water pump lift axle impact；On the other hand the special tune for falling tradition machinery formula adjusting means is thoroughly exempted Motor, and the clutch scheme of the All-in-One formula using center layout are saved, thus significantly simplifies the control system of adjusting means Link of uniting and the complexity of topology layout, had not only reduced the cost of manufacture of device but also had improved the functional reliability of device, simultaneously Also reduce the overall height of device and reduce the radial dimension of device, so as to be that the compact design for realizing adjusting means is created Highly beneficial condition.

Further, the present invention in order to prevent the adjusting screw rod 3 of core component adjusting nut 2/ of adjusting means this to kinematic pair There is the phenomenon of starved-oil lubrication or even starved lubrication, to ensure and improve the functional reliability of adjusting means, can set specially The containment member 19 of door, it is therefore intended that effectively reduce or even prevent the kinematic pair lubricating oil of 2/ adjusting screw rod of adjusting nut 3 or lubrication With getting rid of oily loss, the layout of the wherein containment member 19 has two kinds of forms for the filter loss of grease：A kind of form is containment member 19 follow adjusting screw rod 3 to move and make motion seal cooperation (as shown in Figure 1), another shape with the outer cylinder of adjusting nut 2 Formula is that the containment member 19 is matched somebody with somebody to be connected on adjusting nut 2 and make motion seal with the polished rod outer cylinder of adjusting screw rod 3 and coordinates (figure Not shown in)；Herein, the construction that its structure of the containment member 19 of the motion of adjusting screw rod 3 can be tubular is followed, it can enclose Protect at the outside of adjusting nut 2 and adjusting screw rod 3 (referring to Fig. 1), can effectively prevent from getting rid of oily loss accordingly；Need what is illustrated It is that adjusting nut 2 and containment member 19 make the surface that the outer cylinder that motion seal coordinates can be various columns, its optimised form It is the face of cylinder, because the face of cylinder has preferable machinability and assembling capacity, and seals reliable；Additionally need explanation , the polished rod outer cylinder that adjusting screw rod 3 and containment member 19 make motion seal cooperation can also be the surface of various columns, its Optimised form is equally the face of cylinder.

Further, the present invention can open up out the duct 20 (referring to Fig. 1) of hollow form on relay bar 11, be additionally provided with One displacement signal bar 21 (as shown in Figure 1) for being inserted through the duct 20 of relay bar 11, the displacement signal bar 21 are fastenedly connected On adjusting nut 2 or the displacement signal bar 21 and adjusting nut 2 are structure as a whole making；The mesh of displacement signal bar 21 is set Be that the axial displacement information of adjusting screw rod 3 can be conveyed to outside from the inside of adjusting means, to facilitate control system pair It is acquired, and information is made and reacts accordingly and send corresponding operation instruction accordingly.

Further, the present invention, can in order to reduce fretting wear to improve the service life of associated components and functional reliability To set a main thrust bearings 6 (as indicated with 1) between the lower force-bearing plane 5b and adjusting means body 1 of adjusting nut 2, so The gravity for adjusting the adjusting force occurred during water pump blade angle and associated components will be via testing pump pull bar A → tune Screw rod 3 → adjusting nut, 2 → (the load shaft shoulder 5) → lower force-bearing plane 5b → 6 → adjusting means of main thrust bearings body 1 is saved, so The purpose for reducing fretting wear can be reached by main thrust bearings 6.Furthermore it is also possible in the upper force-bearing plane 5a of adjusting nut 2 Secondary thrust bearing 7 (as shown in Figure 1), the now pretightning force to adjusting nut 2 and generation are provided between load cage 4 Upper top power when " lift axle " impacts will be via testing pump pull bar A → 3 → adjusting nut of adjusting screw rod 2 → (the load shaft shoulder 5) → upper force-bearing plane 5a → secondary thrust bearing 7 → load, 4 → adjusting means of cage body 1, it can both shorten the transmission road of impulsive force Lift axle impact is resisted in footpath and being advantageous to, and can also equally reduce adjusting nut 2 (including load shaft shoulder 5) between load cage 4 Friction and wear.

Further, present invention installation positioning for convenience, can be set between the mounting 12 and adjusting means body 1 Radial positioning bearing 22 and axial spring bearing 23 (as shown in Figure 1), mounting can be accurately positioned by radial positioning bearing 22 12 have very important with the relative position of adjusting means body 1, this accurate engagement for ensureing each gear pair of device Meaning, and it is possible thereby to the functional reliability of adjusting means is effectively ensured；In addition, set axial spring bearing 23 can be poor by tooth The weight of all parts of drive mechanism is implemented and is supported on adjusting means body 1, equally the functional reliability to improving device Favorably.Further, positioned for the purposes of convenient installation, under being set between the adjusting nut 2 and adjusting means body 1 Bearing 24 and upper positioning bearing 25 (as shown in Figure 1) are positioned, wherein lower positioning bearing 24 and the upper inner ring for positioning bearing 25 can be with Adjusting means body 1 can be then fitted in by being fitted in the outer ring of the upper and lower positioning bearing 24 of adjusting nut 2 and upper positioning bearing 25 Or/and on load cage 4, setting after lower positioning bearing 24 and upper positioning bearing 25 can be accurately positioned adjusting nut 2 makes The convolution axis O1 of its axis and adjusting means body 1 is coaxial, and this is right for improving adjusting nut 2 and adjusting screw rod 3 for this point The functional reliability of kinematic pair is very important.Further, the present invention can be in load cage 4 and load on adjusting nut 2 It is logical that buffering spacer 26 (as shown in Figure 1) or/and preloading spring (not shown), the purpose being arranged are set between the 5a of face The deformation energy-absorbing effect of buffering spacer 26 is crossed to alleviate and buffer powerful lift axle impulsive force, to protect adjusting means to exempt from damage Bad, herein, a preferable making material of buffering spacer 26 is copper material；Wavy spring is set then to be advantageous to adjust load cage The pretightning force of 4 pairs of main thrust bearings 6, adjusting nut 2 and secondary thrust bearing 7, it so can effectively eliminate the cooperation of above-mentioned parts Gap and clearance, so that they, which have, preferably coordinates rigidity and working condition.

The present invention causes blade not fall after rise to minimum and met water to prevent from occurring during water pump operation powering off suddenly The situation generation (preferably attack angle of blade is in minimum position before water pump starts every time) of angle position, can set one to meet an urgent need Central gear 27 (as shown in Figure 1 to Figure 3) and a reseting gear 28 (referring to Fig. 2), the emergency center gear 27 are coaxially matched somebody with somebody (as shown in Figure 3) is connected on relay bar 11 or with being connected on (not shown) on adjusting nut 2, the reseting gear 28 can be must When wanting cooperation is engaged with emergency center gear 27；Angle is met water it should be noted that blade is fallen after rise to minimum (that is, most Low Angle Of Attack) position is the requirement of large pump units working specification instantly, because blade must be adjusted before water pump host-initiated The angle that meets water to minimum is saved to mitigate starting load, to reduce the impact to power network and the impact to water pump assembly；This Invention can use an emergent small machine 29 (referring to Fig. 1), using the small machine 29 of meeting an urgent need again by surpassed distance clutch come (in figure It is not shown) drive reseting gear 28 and then by the relatively large emergency center tooth of the relatively small driving dimensions of reseting gear 28 of size Wheel 27, finally relay bar 11 and adjusting nut 2 is driven adjusting screw rod 3 is produced shifting toward the direction to fall from emergency center gear 27 It is dynamic；In addition, the present invention, which can also adopt, manually goes to drive the (not shown) of reseting gear 28, that is, passes through jiggering Mode cause adjusting screw rod 3 to produce movement toward the direction to fall, and water pump blade is fallen after rise to minimum and meet water angle position Put.

The present invention, can be in No. two clutches 17 and No. three clutches in order to further improve the functional reliability of adjusting means Oil removal cover 30 (referring to Fig. 1) is equipped with device 18, arrangement oil removal cover 30 can effectively prevent lubricating oil splash to clutch, for Occurred using can effectively prevent to skid for the situation of dry clutch with the phenomenon of short circuit, so as to effectively improve The functional reliability of clutch, final result are the functional reliabilities for improving device.

The present invention can allow the number of teeth sum of the first central gear 8 and No.1 gear 14 to be equal to the second central gear 9 and two The number of teeth sum of number gear 15 and equal to the number of teeth sum of the 3rd central gear 10 and No. three gears 16, the consideration being arranged Be can allow whole countershafts 13 axis to convolution axis O1 distance it is equal, in other words the axis of countershaft 13 can divide For cloth on same circumference, it is such as all master gear or for identical change that so each gear, which can use identical standard, The gear of potential coefficient and displacement strategy, can so greatly simplify manufacture craft.Further, the present invention can allow the second centre tooth The number of teeth of the first central gear of gear ratio 8 of wheel 9 lacks the tooth of one while the gear ratio No.1 gear 8 of the 3rd central gear 10 Number is more one, and the benefit being arranged is available with the overall chi that few teeth difference obtains as far as possible big fast ratio, thus adjusting means It is very little to can be made smaller, to realizing that compact design is favourable；It should be noted that will echo has No. two gears 15 in this case More one of the number of teeth of gear ratio No.1 gear 14 and the number of teeth of the gear ratio No.1 gear 14 of No. three gears 16 is few one, change sentence The tooth difference amount talked about now is poor for two teeth.

The present invention can allow the gear 16 of gear 15, three of No.1 gear 14, two to have the equal number of number of teeth, so pacify The benefit of row is can to reduce the specification of effective gear, so as to simplify manufacturing process and reduce production cost.Further, it is possible to allow The number of teeth of the first central gear of gear ratio 8 of second central gear 9 few one, the center of gear ratio first of the 3rd central gear 10 The number of teeth of gear 8 is more one, is arranged being again based on the big fast ratio of few teeth difference principle realization, to reduce adjusting means Overall dimension and reach compact design, can obtain in this case tooth difference amount for a tooth it is poor, can maximize acquisition it is larger Speed reducing ratio.

Similarly, the present invention can allow the first central gear 8, the second central gear 9, the 3rd central gear 10 to have identical number The purpose number of teeth, to simplify the specification of gear.Equally, the present invention can also allow the gear ratio No.1 gear 14 of No. two gears 15 The number of teeth of the gear ratio No.1 gear 14 of more one, No. three gears 16 of the number of teeth is few one, can so obtain tooth difference amount as one Individual tooth is poor.

In particular, water pump blade angle in-service adjusting means of the present invention based on tooth difference driving can also adopt It is achieved (not shown) with the mode of synchromesh gear combination timing belt, and uses the tooth difference driving regulation dress of synchronous banding pattern Lubricating oil can need not be used by putting its differential attachment, therefore the problem of lubricant medium leaks also just is not present, therefore be not only contributed to The non-maintaining use of the device and functional reliability of device can also be further enhanced；Device based on timing belt driving Its principle and layout with it is above-mentioned using gear drive by the way of it is similar：Including adjusting means body 1, adjusting nut 2 and regulation spiral shell Bar 3, described adjusting means body 1 can make dead axle gyration around the convolution axis O1 of its own, the adjusting nut 2 and Adjusting screw rod 3 is coaxially disposed with adjusting means body 1, and adjusting nut 2 is matched somebody with somebody using spiral structure with adjusting screw rod 3 and merges composition one Individual screw pair, adjusting nut 2 can drive adjusting screw rod 3 to produce axial displacement motion；It is characterized in that：One is provided with to hold Power cage 4, the load flap 4 is fastenedly connected on adjusting means body 1 or the load flap 4 is with adjusting means body 1 Integrative-structure makes；Be provided with upper force-bearing plane 5a and lower force-bearing plane 5b on described adjusting nut 2, wherein lower force-bearing plane 5b with Adjusting means body 1 there are the relation of mutual load, upper force-bearing plane 5a there are the relation of mutual load with load cage 4, Under the common constraint of adjusting means body 1 and load cage 4 adjusting nut 2 can only make rotation around itself axis without Moving along its axis can be made, the adjusting nut 2 can have rotating forward, reversion and static three kinds relative to adjusting means body 1 Running status；It is provided with a first central synchronous wheel being coaxially laid out with adjusting means body 1, a second central synchronous wheel With a 3rd central synchronous wheel, the first central synchronous wheel, which is matched somebody with somebody, to be connected on adjusting means body 1 and receives adjusting means sheet The driving of body 1 or the first central synchronous wheel and adjusting means body 1 are structure as a whole making；It is provided with and adjusting means The relay bar 11 that body 1 is coaxially laid out, the relay bar 11 is with being connected on adjusting nut 2 or the relay bar 11 and adjusting nut 2 Be structure as a whole making, and the relay bar 11 can drive adjusting nut 2 to operate；It is provided with an actionless mounting 12 and extremely A few countershaft 13, the countershaft 13 are all installed in rotation on mounting 12, and one is fitted with each countershaft 13 No.1 synchronizing wheel while No. two synchronizing wheels or/and No. three synchronizing wheels are fitted with, and at least a countershaft 13 is matched somebody with somebody Be fitted with No. three synchronizing wheels equipped with No. two synchronizing wheels, at least a countershaft 13, described No.1 synchronizing wheel, No. two synchronizing wheels and No. three synchronizing wheels are coaxially with being connected on or integration is produced on the countershaft 13 where it, wherein in No.1 synchronizing wheel and first Heart synchronizing wheel, No. two synchronizing wheels and the second central synchronous wheel, No. three synchronizing wheels are used with the 3rd central synchronous wheel and synchronously brought into Row motion couples with power；It is provided with No. two clutches 17 and No. three clutches 18, No. two clutches 17 and institute State the pairing of the second central synchronous wheel and No. two clutches 17 are responsible for determining whether this second central synchronous wheel is real with relay bar 11 Apply power transmission linkage, No. three clutches 18 and the 3rd central synchronous wheel pairing and No. three clutches 18 be responsible for determining this 3rd Central synchronous wheel whether with relay bar 11 implement power transmission linkage；No. two clutches 17 and No. three clutches 18 are in synchronization Working condition meet and must take and one kind in following three kinds of logical relations can only be taken：No. two clutches 17 disconnect and together When No. three clutches 18 also disconnect, No. two clutches 17 engage but simultaneously No. three clutches 18 to disconnect, No. two clutches 17 it is disconnected Open but No. three clutches 18 are engagement simultaneously；No.1 synchronizing wheel is driven operating and by No.1 synchronization by the first central synchronous wheel Wheel drives countershaft 13 where it to operate, and then No. two synchronizing wheels, No. three synchronizing wheel fortune being fitted in thereon are driven by the countershaft 13 Turn, then drive the second central synchronous wheel and the 3rd central synchronous wheel to operate respectively by this No. two synchronizing wheels and No. three synchronizing wheels, Second central synchronous wheel and the 3rd central synchronous described in when No. two clutches 17 disconnect and No. three clutches 18 also disconnect simultaneously Wheel disconnected with relay bar 11 drive connection, when No. two clutches 17 engage but No. three clutches 18 disconnect simultaneously by and only by No. two central synchronous wheel drive relay bars 11 of clutch 17 and second operate, when No. two clutches 17 disconnect but No. three clutches simultaneously Device 18 engage when by and only operated by No. three central synchronous wheel drive relay bars 11 of clutch 18 and the 3rd；By the first central synchronous The ratio between the number of teeth of wheel and the number of teeth of No.1 synchronizing wheel obtain the first speed ratio, the number of teeth and the second central synchronous wheel by No. two synchronizing wheels The ratio between the number of teeth obtain the second speed ratio, the 3rd speed obtained by the ratio between the number of teeth and number of teeth of the 3rd central synchronous wheel of No. three synchronizing wheels Than the described first speed is more than the one, described first speed than the product with the 3rd fast ratio than its numerical value with the product of the second fast ratio Its numerical value is less than one.

The outstanding advantages that have compared with prior art of the present invention are：Using tooth difference driving principle and combine nut-screw pair reality The axial displacement of existing adjusting screw rod 3, take this reliably and accurately to realize that in-service regulation and control water pump blade in real time meets water the mesh of angle 's.On the one hand the topology layout scheme with clamping adjusting nut 2 is positioned jointly with load cage 4 using adjusting means body 1, by This greatly strengthen the support stiffness of parts and shortens the bang path of active force, be effectively improved adjusting means resistance water The ability of pump lift axle impact；On the other hand thoroughly exempt the special regulation motor for falling tradition machinery formula adjusting means, and use more The center layout clutch configuration placement scheme of Integral type, thus significantly simplify the control system link and knot of adjusting means The complexity of structure layout, had not only reduced the cost of manufacture of device but also had improved the functional reliability of device, while also reduced dress The overall height put simultaneously reduces the radial dimension of device, to realize that the compact design of adjusting means creates highly beneficial bar Part.

Above-described embodiment is only one of presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore： The various equivalence changes that all structures under this invention, shape, principle are done, all should be covered by within protection scope of the present invention.

Claims

1. it is a kind of based on tooth difference driving the in-service adjusting means of water pump blade angle, including adjusting means body, adjusting nut and Adjusting screw rod, the adjusting means body can make dead axle gyration around the convolution axis of its own, the adjusting nut and Adjusting screw rod is coaxially disposed with adjusting means body, and adjusting nut is matched somebody with somebody using spiral structure with adjusting screw rod and merges one spiral shell of composition Kinematic pair is revolved, adjusting nut can drive adjusting screw rod to produce axial displacement motion；It is characterized in that：It is provided with a load lid Seat, the force-bearing base, which covers tightly, to be solidly connected on adjusting means body or the load flap is structure as a whole with adjusting means body Make；Upper force-bearing plane and lower force-bearing plane, wherein lower force-bearing plane and adjusting means ontological existence are provided with the adjusting nut Relation, upper force-bearing plane and the load cage for having mutual load there are the relation of mutual load, in adjusting means body and load Adjusting nut can only make the rotation around itself axis and can not make moving along its axis under the common constraint of cage, described Adjusting nut can have rotating forward, reversion and static three kinds of running statuses relative to adjusting means body；It is provided with and is filled with regulation Put first central gear, second central gear and the 3rd central gear that body is coaxially laid out, described first Central gear matches somebody with somebody the driving for being connected on adjusting means body and receiving adjusting means body or first central gear and regulation Device body is structure as a whole making；The relay bar being coaxially laid out with adjusting means body is provided with, the relay bar, which is matched somebody with somebody, is connected on tune On section nut or the relay bar and adjusting nut are structure as a whole making, and the relay bar can drive adjusting nut to operate；If An actionless mounting and at least a countershaft are equipped with, the countershaft is all installed in rotation on mounting, each A No.1 gear is fitted with root countershaft while is fitted with No. two gears or/and No. three gears, and at least A piece countershaft is fitted with No. two gears, an at least countershaft is fitted with No. three gears, described No.1 gear, No. two gears and No. three gears are coaxially with being connected on or integration is produced on the countershaft where it, wherein No.1 gear and the first centre tooth Wheel holding often engagement, No. two gears are often engaged with the holding of the second central gear, No. three gears keep often nibbling with the 3rd central gear Close；No. two clutches and No. three clutches are provided with, No. two clutches match with second central gear and should No. two clutches are responsible for determining whether this second central gear links with the implementation power transmission of relay bar, No. three clutches and the described 3rd Central gear matches and No. three clutches are responsible for determining whether this 3rd central gear with relay bar implements power transmission linkage；It is described No. two clutches and No. three clutches meet in the working condition of synchronization and must take and can only take following three kinds of logics One kind in relation：No. two clutches disconnect and simultaneously No. three clutches also disconnect, No. two clutches engagements but simultaneously No. three from Clutch is disconnection, No. two clutches disconnect but No. three clutches are engagement simultaneously；No.1 gear is driven by the first central gear Countershaft where operating and driving it by the No.1 gear is operated, and then No. two gears, three being fitted in thereon are driven by the countershaft Number gear operation, then the second central gear and the 3rd central gear is driven to operate respectively by this No. two gears and No. three gears, The second central gear and the 3rd central gear are with connecing described in when No. two clutches disconnect and No. three clutches also disconnect simultaneously Power bar disconnect drive connection, when the engagement of No. two clutches but when No. three clutches disconnect simultaneously by and only by No. two clutches and the The operating of two central gears driving relay bar, when No. two clutches disconnect but during No. three clutches engagements simultaneously by and only by No. three from Clutch and the driving relay bar operating of the 3rd central gear；The ratio between number of teeth by the number of teeth and the No.1 gear of the first central gear obtains First speed ratio, obtain by the ratio between number of teeth of the number of teeth and the second central gear of No. two gears the second speed ratio, by the tooth of No. three gears The ratio between number of teeth of number and the 3rd central gear obtains the 3rd fast ratio, and the described first speed is bigger than its numerical value with the product of the second fast ratio Yu Yi, the described first speed are less than one than its numerical value with the product of the 3rd fast ratio.

2. a kind of in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 1, its feature exist In：Containment member is provided with, the containment member follows adjusting screw rod to move and coordinate with the outer cylinder motion seal of adjusting nut, Or the containment member is matched somebody with somebody and is connected on adjusting nut and coordinates with the polished rod outer cylinder motion seal of adjusting screw rod.

3. a kind of in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 2, its feature exist In：The relay bar offers the duct of hollow form, is additionally provided with a displacement signal bar for being inserted through the relay rod aperture road, Making that the displacement signal bar is fastenedly connected on adjusting nut or the displacement signal bar and adjusting nut are structure as a whole.

4. a kind of in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 3, its feature exist In：Main thrust bearings are provided between the lower force-bearing plane and adjusting means body of the adjusting nut load shaft shoulder.

5. the water pump blade angle in-service adjusting means according to claim 4 based on tooth difference driving, it is characterised in that： Radial positioning bearing and axial spring bearing are provided between the mounting and adjusting means body.

6. the water pump blade angle in-service adjusting means according to claim 5 based on tooth difference driving, it is characterised in that： Lower positioning bearing and upper positioning bearing are provided between the adjusting nut and adjusting means body.

7. a kind of in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 6, its feature exist In：Buffering spacer or/and preloading spring are provided between the load cage and adjusting nut upper force-bearing plane.

8. the in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 1 to 7 any one, its It is characterised by：An emergency center gear and a reseting gear are provided with, the emergency center gear, which is coaxially matched somebody with somebody, to be connected on On power bar or on adjusting nut, the reseting gear can engage cooperation with emergency center gear.

9. the in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 1 to 7 any one, its It is characterised by：No. two clutches and No. three clutches are fitted with oil removal cover.

10. the in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 1 to 7 any one, It is characterized in that：The number of teeth sum of first central gear and No.1 gear be equal to the second central gear and No. two gears the number of teeth it With and equal to the 3rd central gear and No. three gears number of teeth sum.

11. the water pump blade angle in-service adjusting means according to claim 10 based on tooth difference driving, it is characterised in that： The number of teeth of the central gear of gear ratio first of second central gear few one, the central gear of gear ratio first of the 3rd central gear More one of the number of teeth.

12. the in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 1 to 7 any one, It is characterized in that：Described No.1 gear, No. two gears, No. three gears have the equal number of number of teeth.

13. the water pump blade angle in-service adjusting means according to claim 12 based on tooth difference driving, it is characterised in that： The number of teeth of the central gear of gear ratio first of second central gear few one, the central gear of gear ratio first of the 3rd central gear More one of the number of teeth.

14. the in-service adjusting means of water pump blade angle based on tooth difference driving according to claim 1 to 7 any one, It is characterized in that：Described the first central gear, the second central gear, the 3rd central gear have the equal number of number of teeth.

15. the water pump blade angle in-service adjusting means according to claim 14 based on tooth difference driving, it is characterised in that： The number of teeth of the gear ratio No.1 gear of more one, No. three gears of the number of teeth of the gear ratio No.1 gear of No. two gears is few one.

16. it is a kind of based on tooth difference driving the in-service adjusting means of water pump blade angle, including adjusting means body, adjusting nut and Adjusting screw rod, the adjusting means body can make dead axle gyration around the convolution axis of its own, the adjusting nut and Adjusting screw rod is coaxially disposed with adjusting means body, and adjusting nut is matched somebody with somebody using spiral structure with adjusting screw rod and merges one spiral shell of composition Kinematic pair is revolved, adjusting nut can drive adjusting screw rod to produce axial displacement motion；It is characterized in that：It is provided with a load lid Seat, the force-bearing base, which covers tightly, to be solidly connected on adjusting means body or the load flap is structure as a whole with adjusting means body Make；Upper force-bearing plane and lower force-bearing plane, wherein lower force-bearing plane and adjusting means ontological existence are provided with the adjusting nut Relation, upper force-bearing plane and the load cage for having mutual load there are the relation of mutual load, in adjusting means body and load Adjusting nut can only make the rotation around itself axis and can not make moving along its axis under the common constraint of cage, described Adjusting nut can have rotating forward, reversion and static three kinds of running statuses relative to adjusting means body；It is provided with and adjusting means A first central synchronous wheel, a second central synchronous wheel and the 3rd central synchronous wheel that body is coaxially laid out, it is described First central synchronous wheel, which is matched somebody with somebody, to be connected on adjusting means body and receives driving or first central synchronous of adjusting means body Wheel is structure as a whole making with adjusting means body；The relay bar being coaxially laid out with adjusting means body is provided with, the relay bar With being connected on adjusting nut or the relay bar and adjusting nut are structure as a whole making, the relay bar can drive regulation spiral shell Mother's operating；It is provided with an actionless mounting and at least a countershaft, the countershaft is all installed in rotation on mounting On, a No.1 synchronizing wheel is fitted with each countershaft while to be fitted with No. two synchronizing wheels or/and one No. three same Step wheel, and an at least countershaft is fitted with No. two synchronizing wheels, an at least countershaft is fitted with No. three synchronizing wheels, it is described No.1 synchronizing wheel, No. two synchronizing wheels and No. three synchronizing wheels are coaxially with being connected on or integration is produced on countershaft where it On, wherein No.1 synchronizing wheel and the first central synchronous wheel, No. two synchronizing wheels and the second central synchronous wheel, No. three synchronizing wheels and the 3rd Central synchronous wheel carries out motion using timing belt and coupled with power；It is provided with No. two clutches and No. three clutches Device, No. two clutches match with the second central synchronous wheel and No. two clutches are responsible for determining that this second central synchronous wheel is It is no to be responsible for determining with the 3rd central synchronous wheel pairing and No. three clutches with relay bar implementation power transmission linkage, No. three clutches Whether this fixed the 3rd central synchronous wheel with relay bar implements power transmission linkage；No. two clutches and No. three clutches are the same as the moment The working condition at quarter meets and must take and can only take one kind in following three kinds of logical relations：No. two clutches disconnect and same When No. three clutches also disconnect, the engagement of No. two clutches but simultaneously No. three clutches to disconnect, No. two clutches disconnect but simultaneously No. three clutches are engagement；No.1 synchronizing wheel is driven by the first central synchronous wheel to be operated and drives its institute by the No.1 synchronizing wheel Operated in countershaft, and then drive No. two synchronizing wheels, No. three synchronizing wheels that are fitted in thereon to operate by the countershaft, then by this No. two Synchronizing wheel and No. three synchronizing wheels drive the second central synchronous wheel and the 3rd central synchronous wheel to operate respectively, when No. two clutches disconnect And the second central synchronous wheel described in when No. three clutches also disconnect simultaneously and the 3rd central synchronous wheel disconnect with relay bar and are driven Relation, when the engagement of No. two clutches but when No. three clutches disconnect simultaneously by and only by No. two clutches and the second central synchronous wheel Drive the operating of relay bar, when No. two clutches disconnect but during No. three clutches engagements simultaneously by and only by No. three clutches and the 3rd Central synchronous wheel drive relay bar operates；The ratio between number of teeth by the number of teeth and the No.1 synchronizing wheel of the first central synchronous wheel obtains first Speed ratio, obtain by the ratio between number of teeth of the number of teeth and the second central synchronous wheel of No. two synchronizing wheels the second speed ratio, by No. three synchronizing wheels The ratio between the number of teeth and the number of teeth of the 3rd central synchronous wheel obtain the 3rd fast ratio, and the described first speed is than its number of the product with the second fast ratio Value is more than the one, described first speed and is less than one than its numerical value with the product of the 3rd fast ratio.