CN208929795U - A kind of fluid driver bed - Google Patents

Abstract

The utility model discloses a kind of fluid driver bed, use fluid, if hydraulic oil, water or compressed air are the energy, driving live spindle is moved, and structure is simple, torque is big, revolving speed is high, and transmission efficiency is high, and low energy consumption, and it is with small vibration, requirement of the lathe to torque, revolving speed and smoothness of operation can be met well；Fluid power plant simultaneously, including outer ring and core, the secondary swash of wave road of at least single order or more is equipped between the spout and row's mouth of the outer ring surface of core, fluid enters from influent stream channel, by the ejection stepwise of the spout and secondary swash of wave road of core, acts at least two driving recess portions in the circumferential direction of outer ring, thrust is generated to these driving recess portions and pushes outer ring rotation acting, power output is realized, finally, fluid is discharged by the row mouthful of core through current drainage channel.

Description

A kind of fluid driver bed

Technical field

The utility model discloses a kind of fluid driver bed, belongs to industrial processes by International Patent Classification (IPC) (IPC) division Plant machinery device class technical field.

Background technique

Existing various lathes mostly use motor driven live spindle, when due to being rotated in high-speed rotation, need Higher revolving speed and biggish torque, and need to maximize to reduce and vibrate, to improve machining accuracy.

Existing live spindle, engine, i.e. power source are motor, existing driving motor, rotation speed change range Small, structure is complicated, and power output poor reliability.

Further to improve machine tool capability, meets lathe work requirements, realize that compact-sized, high efficient and reliable power generates And output, the utility model people pass through the developmental research of many years, therefore just have the proposition of the utility model.

Summary of the invention

In view of the deficiencies of the prior art, the utility model provides a kind of fluid driver bed, passes through fluid power plant Driving spindle, the multistage runner being circumferentially arranged on the core of fluid power plant, the energy of fluid are repeatedly utilized, are driven by core Dynamic rotation outer ring, realizes the output of power, has that compact-sized, torque is big, revolving speed is high, transmission efficiency is high, energy conservation and environmental protection etc. is excellent Point.

In order to achieve the above objectives, the utility model is achieved through the following technical solutions:

A kind of fluid driver bed, it is characterised in that: including live spindle and drive the fluid dynamic of the live spindle Device, which is characterized in that the fluid power plant includes:

One outer ring, inner ring surface circumferential direction are equipped with multiple driving recess portions；

One core, be co-axially located in outer ring and can opposite outer ring rotating, the outer ring surface of core be equipped with an at least spout, An at least row mouthful and the swash of wave road at least once between spout and row's mouth；

An at least influent stream channel is connected to an at least spout；And

An at least current drainage channel, a connection at least row mouthful；

Fluid enters from influent stream channel, by the ejection stepwise of the spout and secondary swash of wave road of core, acts on outer ring circumferential direction On at least two driving recess portions, to these driving recess portions generate thrusts push outer rings rotation acting, realize power output, finally, Fluid is discharged by the row mouthful of core through current drainage channel.

Further, an at least influent stream channel, at least a spout, at least two driving recess portion, at least once swash of wave roads, at least one Row's mouth and an at least current drainage channel form independent acting unit, include at least one list that independently does work in the fluid power plant Member.

Further, the spout on core and secondary swash of wave road, the connection of corresponding with outer ring driving recess portion, secondary swash of wave road with it is corresponding Driving recess portion be laid staggeredly and be sequentially communicated, secondary swash of wave road is circumferentially arranged along core or outer ring.

Further, influent stream channel and current drainage channel are formed in core.

Further, include: on core

Influent stream channel forms spout in core circumferential surface, and trend is by the curved line that extends outward of centre, spout and outer Corresponding driving recess portion connection is enclosed, the 1st rank runner is formed；

Secondary swash of wave road, trend be core edge inwardly arrive the curved line that edge bends extension again, each time swash of wave road and The corresponding front and back two in outer ring drives recess portion connection, circumferentially forms N rank runner along core, wherein the natural number of N >=2；

Each rank runner driving recesses fit corresponding with outer ring forms the multistage stroke structure that fluid energy successively decreases.

Further, secondary swash of wave road includes return run and the stroke road that communicates, return run driving recess portion company corresponding with outer ring Logical, stroke road is connected to another driving recess portion.

Further, the trend in core influent stream channel is the log spiral extended outward by centre, the log spiral In the core on mandrel line, log spiral moves towards 15 ° -45 ° of angle for pole setting.

Further, core is equipped with influent stream channel, and trend is by the intermediate log spiral extended outward, secondary swash of wave road The trend in stroke road be log spiral, the trend of the stroke road log spiral in secondary swash of wave road and influent stream channel logarithmic spiral Moving towards for line is roughly the same.

Further, which further includes an axis, and outer ring and core are coaxially disposed on axis.

Further, which further includes an axis, and outer ring and core are coaxially disposed on axis, offer on the axis Influent stream channel and the current drainage channel of core are respectively communicated into and out of stream axle track.

Flow inlet and outflow port are formed into and out of stream axle track in axis, is not connectivity structure into and out of stream axle track.

Further, outer ring is matched with one enclosure space of formation, core on axis by side plate and is set in enclosure space simultaneously It is fixed with axis connection.

Further, influent stream channel, spout, driving recess portion, secondary swash of wave road, row's mouth and current drainage channel structure in independent acting unit At fluid flow path.

It further, include that two or more the units that independently do work form multiple drive power structure, and edge in the fluid power plant Core or outer ring are circumferentially arranged.

Further, it is provided with 2 or more on the inner ring surface of outer ring and drives recess portion, each driving recess portion has a profile bottom surface And drive surface, the contour line of profile bottom surface are log spiral, the heart in the core is arranged in pole.

It further, further include a machine base, which is equipped with main shaft gearbox, which is set to the main shaft On gear-box, which is set in the machine base, and is sequentially connected by the main shaft gearbox and the live spindle.

Further, which is connected on the outer ring of the fluid power plant, alternatively, the fluid power plant It is connected with a chuck on outer ring, and then is integrated in the live spindle.

The fluid driver bed of the utility model is the energy, driving rotation using fluid, such as hydraulic oil, water or compressed air Turn motion of main shaft, structure is simple, and torque is big, and revolving speed is high, and transmission efficiency is high, and low energy consumption, and with small vibration, can meet machine well Requirement of the bed to torque, revolving speed and smoothness of operation；Further, the fluid power plant, rotational speed regulation range is wide, tool Standby stepless shift function can further simplify machine tool structure, especially simplify the structure of spindle box.

The fluid power plant of the utility model has the following beneficial effects: on fluid lathe

1, the multistage runner that core is arranged in the utility model, i.e. influent stream channel are made as the 1st rank runner, each secondary swash of wave road For the 2nd, 3,4 ... rank runners, fluid is acted on the driving recess portion of outer ring by the 1st rank runner, drives recess portion and the 2nd rank runner phase It is logical, another driving recess portion of outer ring is then returned to after the 2nd rank runner and acts on, precedence is analogized, until fluid is logical from drainage Road discharge, whole process is the forward progress along outer ring direction of rotation, and torque is big, and transmission efficiency is high, fluid utilization rate is high, output Torque is further increased with the raising of revolving speed；Meet live spindle rotation demand.

2, each runner that the utility model core is circumferentially laid, effectively reduces the volume of single unit system, can flexibly cooperate In the generation of each field power or output equipment, meanwhile, the enterprising circulation road setting of core is more, and overall weight reduces instead, into one Step improves the output speed and efficiency of device；Separative efficiency is higher, and separating effect is more preferable.

Detailed description of the invention

Fig. 1 is the 1st embodiment fluid machine tool structure schematic diagram of the utility model；

Fig. 2 is the partial sectional view that the 1st embodiment fluid lathe fluid power plant of the utility model is connect with spindle box；

Fig. 3 is the 1st embodiment fluid power plant schematic diagram of the utility model.

Fig. 4 is the 1st embodiment fluid power plant axis A of the utility model to side view.

Fig. 5 is the 1st embodiment fluid power plant axis B of the utility model to side view.

Fig. 6 is one cross-sectional view of the 1st embodiment fluid power plant of the utility model.

Fig. 7 is the 1st another layout of embodiment fluid power plant of the utility model.

Fig. 8 is the 2nd embodiment fluid power plant schematic diagram of the utility model.

Fig. 9 is the 2nd embodiment fluid power plant axis C of the utility model to side view.

Figure 10 is the 2nd embodiment fluid power plant axis D of the utility model to side view.

Figure 11 is the 2nd embodiment fluid power plant radial cross-section of the utility model.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing:

Embodiment 1:

Referring to figs. 1 and 2, this embodiment offers a kind of fluid driver beds, wherein in this embodiment, should Fluid driver bed is that turn in other specific embodiments, can also be numerically controlled lathe, milling machine, grinding machine certainly And numerical control machining center etc..

The fluid driver bed includes a machine base 5, which is equipped with main shaft gearbox 8, and a live spindle 6 is set In on the main shaft gearbox 8, which is equipped with a scroll chuck 7, to be used for holding parts；The main shaft gearbox 8 is also It is sequentially connected with feed rod and lead screw, for driving the feeding of tool apron 70.

The fluid power plant 9 is set in the machine base 5, and is connected by the main shaft gearbox 8 and the live spindle 6 transmission It connects；Wherein, it is preferred that 1 outer wall of outer ring of fluid power plant 9 forms pulley groove, is sequentially connected by belt to main shaft tooth The input shaft of roller box 8.

Please refer to Fig. 3 to Fig. 6, the fluid power plant of the embodiment comprising an outer ring 1 is set in inner ring surface circumferential direction There are multiple driving recess portions 11；One core 3 is co-axially located in outer ring 1 and outer ring rotating, the outer ring surface of core 3 can set relatively There are an at least spout 301, an at least row mouthful 302 and the road of the swash of wave at least once 300 between spout and row's mouth；The stream Fluid used is usually Newtonian fluid or non-newtonian fluid, usually selection Newtonian fluid in body power device, includes gas stream Body or liquid fluid, the Fluid pressure for being input to the power device can be compressor (such as hydraulic pump or pulsometer) and generate, press The container (such as high pressure gas cylinder) of contracting fluid generate or be originated from environment (such as water flow, distinguished and admirable),.

An at least influent stream channel 31 is connected to an at least spout 301, the high pressure of 31 pipeline connection of influent stream channel to factory Gas source or hydraulic power source, for being passed through fluid；

And an at least current drainage channel 310, a connection at least row mouthful 302；

Fluid enters from influent stream channel 31, by the ejection stepwise of the spout 301 and secondary swash of wave road 300 of core 3, acts on At least two driving recess portions 11 in 1 circumferential direction of outer ring generate thrust to these driving recess portions 11 and push the rotation acting of outer ring 1, realize Power continuously exports, finally, fluid is discharged by the row mouthful of core 3 through current drainage channel.The fluid power plant further includes an axis 2, outer ring 1 and core 3 are coaxially disposed on axis 2.

As shown in fig. 6, influent stream channel 31 and current drainage channel 310 are formed in core 3, spout 301 and secondary punching on core 3 Runner 300, driving recess portion 11 corresponding with outer ring 1 is connected to, wherein secondary swash of wave road 300 is laid staggeredly with corresponding driving recess portion 11 It is sequentially communicated, secondary swash of wave road 300 is circumferentially arranged along core or outer ring.

Include: influent stream channel 31 on core 3 such as Fig. 6, form spout 31 in core circumferential surface, trend for from it is intermediate toward The curved line of outer extension, the driving recess portion 11 corresponding with outer ring of spout 301 are connected to, and form the 1st rank runner；

Secondary swash of wave road 300, trend are that 3 edge of core inwardly arrives the curved line that edge bends extension again, each time the swash of wave The front and back two corresponding with outer ring 1 of road 300 drives recess portion 11 to be connected to, and circumferentially forms N rank runner along core, wherein the nature of N >=2 Number.It should be understood that then including here the 1st rank runner (influent stream channel) and (the primary punching of the 2nd rank runner if it is 2 rank runners Runner)；It is (another including the 1st rank runner (influent stream channel), the 2nd rank runner (swash of wave road), the 3rd rank runner if it is 3 rank runners Swash of wave road) ... ...

Each rank runner driving recesses fit corresponding with outer ring forms the multistage stroke structure that fluid energy successively decreases.

According to the requirement of load, fluid power plant can be designed, the setting of core 3 therein can be 2 ranks stream Road, 3 rank runners, or more rank influent stream channel, every rank circular work, energy make full use of, farthest improve service efficiency, The needs of to meet output torque and revolving speed.

If Fig. 7 is 4 rank runner schematic diagrames, compression fluid after the entrance of the 1st rank runner 311, through the 2nd, 3,4 rank runners 312, 313,314, and spray and act on corresponding driving recess portion 11, last body is exported by current drainage channel 310；Fig. 6 is that 5 rank influent streams are logical Road schematic diagram, the course of work are illustrated similar with Fig. 7.Such as Fig. 7, secondary swash of wave road 300 includes return run and the stroke road communicated, such as schemes Return run 3131 in the 3rd rank runner in 7 and the stroke road 3132 communicated, the driving recess portion corresponding with outer ring of return run 3131 Connection, stroke road 3132 is connected to another driving recess portion.

Referring to Fig. 3, the fluid power plant further includes an axis 2, outer ring 1 and core 3 are coaxially disposed on axis 2, the axis 2 On offer into and out of stream axle track 21,210 and be respectively communicated to influent stream channel 31 and the current drainage channel 310 of core 3.Into and out of stream in axis Axle track forms inlet and outlet, is not connectivity structure into and out of stream axle track.Outer ring 1 is matched on axis 2 by side plate 41,42 and is formed One enclosure space, core 3 are set in enclosure space and are connected and fixed with axis 2.Core 3 is equipped at least 2 in the utility model Rank runner, every single order runner driving recess portion connection corresponding with outer ring, is finally discharged fluid by current drainage channel.

Referring to Fig. 3, core 3 can be and form with left and right core in the utility model, left and right core mating surface Equipped with influent stream channel 31 and current drainage channel 310, core 3 is also possible to be integrally cast.

Fig. 3, Fig. 6 are please referred to, the present embodiment is level-one driving structure, and circumferentially arranged 1 fluid channel is formed on core 3 Level-one driving structure, fluid channel are also referred to as independent acting unit, an influent stream channel 31 on core 3 and outer ring 1, a spout 301, At least two driving recess portions 11, at least once swash of wave road 300, a row mouthful 302 and a current drainage channel 310 form independent acting unit, It include at least one unit that independently does work in the fluid power plant.Influent stream channel 31, spout 301, drive in independent acting unit Dynamic recess portion 11, secondary swash of wave road 300, row's mouth 302 and current drainage channel 310 constitute fluid flow path.

Fig. 3, Fig. 6 or Fig. 7 are please referred to, 2 or more is provided on the inner ring surface of outer ring 1 in the utility model and drives recess portion 11, each driving recess portion has a profile bottom surface 111 and drive surface 112, and the contour line of profile bottom surface 111 can be common arc Shape line or helix, when the contour line of profile bottom surface is log spiral, pole is arranged on axis, and each driving recess portion 11 is same When communicated with adjacent rank runner so that preceding single order runner enter fluid exported by lower single order runner.

I.e. the 1st rank runner in 3 influent stream channel of core trend can be common curved line or helix in the utility model, and each time The trend in stroke road is also possible to common curved line or helix in swash of wave road i.e. N rank runner.

Such as Fig. 6 and Fig. 7, the utility model core 3 is equipped with influent stream channel 31, and trend is by intermediate pair extended outward The trend of number helix, the stroke road in secondary swash of wave road 300 is log spiral, and the stroke road log spiral in secondary swash of wave road is walked Move towards roughly the same to influent stream channel log spiral.The trend in 3 influent stream channel of core is pair extended outward by centre Number helix, in the core on mandrel line, log spiral moves towards 15 ° -45 ° of angle, angle for the pole setting of the log spiral Smaller, runner is longer, is lost more；Angle is bigger, drives the tangential component of outer ring smaller.

Fig. 3, Fig. 4 and Fig. 5 are please referred to, the utility model axis 2 is interior to form inlet and outlet into and out of stream axle track 21,210, into, Stream axle track is not connectivity structure out.The inlet and outlet of axis can be set at axis one end or axis both ends, influent stream axle track 21 and core Influent stream channel 31 communicate, the outflow port of axis is axially extending to form out stream axle track 210, flows the current drainage channel of axle track and core out 310 communicate.

Fluid power plant involved by present application is the device for referring to for fluid to be converted into mechanical rotation, wherein the dress It sets in addition to necessary outer ring, core and its respective recess structure or flow passage structure design, can also additionally include other component；Example Such as, it can additionally include being provided with shell and sealing structure of outer protection etc., for another example can additionally include being provided with torque transfer Shaft coupling etc..Wherein, outer ring can rotate the difference of the way of output according to machinery and specific manifestation form is varied, such as External tooth form structure is formed on the outside of outer ring, in favor of passing through gear-driven mode output kinetic energy；In another example outer ring has belt grooves, The output kinetic energy in a manner of being driven by belt；Again for example outer ring have mounting flange, install with can be convenient shaft coupling with Output kinetic energy；Etc..The material of core and outer ring is made of hard material, is not limited to metal, metal alloy, plastics, composite wood The recess structure of matter, core and outer ring or the processing method of flow passage structure can be realized using all known means of productions, be wrapped It includes and is not limited to die casting, forging, extruding, 3D printing etc..The Fluid pressure for being input to the power device can be compressor (such as Hydraulic pump or pulsometer) generate, the container (such as high pressure gas cylinder) of compression fluid generates or be originated from environment (such as water flow, distinguished and admirable), Deng.

In Fig. 3 and Fig. 6 it should be noted that influent stream channel 31 of core and current drainage channel 310 and influent stream axle track 21 go out to flow Axle track 210, although not corresponding to by cartographic convention, for image explanation, the influent stream channel of core and current drainage channel are exactly in Fig. 3 Fingering circulation road and current drainage channel, Fig. 8 and Figure 11 similar signal diagram in embodiment 2.

Embodiment 2:

The fluid driver bed of the embodiment is substantially the same manner as Example 1, the main distinction are as follows:

Fig. 8 to Figure 11 is please referred to, includes that 2 independent acting units form secondary drive structure, i.e. core in fluid power plant Circumferentially arranged 2 fluid channels on body 3, the influent stream channel 31 and time swash of wave road 300 that every fluid channel includes 1 rank or more are simultaneously Along the circumferential laying of core 3 and current drainage channel.Fluid power plant includes outer ring 1, and it is recessed that inner ring surface circumferential direction is equipped with multiple drivings Portion 11；One core 3 is co-axially located in outer ring 1 and outer ring rotating, the outer ring surface of core can be equipped with 2 groups of spouts, row relatively Swash of wave road at least once is equipped between mouth and every group of spout and row's mouth；Core is equipped with 2 influent stream channels 31,32, the company of correspondence Logical spout；And 2 current drainage channels 310,320, correspond to connection row's mouth；Two fluids from respectively from 2 influent stream channels of core into Enter, by the ejection stepwise of the spout and secondary swash of wave road 300 of core 3, acts on the circumferentially upper corresponding driving recess portion 11 in outer ring, it is right These driving recess portions generate thrust and push the rotation acting of outer ring 1, realize power output, finally, the row mouthful warp that fluid passes through core Current drainage channel discharge.An above-mentioned influent stream channel, a spout, respective numbers driving recess portion and corresponding secondary swash of wave road, Pai Kou Independent acting unit is formed with a current drainage channel.

The fluid power plant further includes an axis 2, outer ring 1 and core 3 be coaxially disposed on axis, offered on the axis 2 into It flows axle track 21,22 and goes out influent stream channel 31,32 and current drainage channel 310,320 that stream axle track 210,220 is respectively communicated to core.Axis 2 are equipped with two flow inlets corresponding with fluid channel and two outflow ports；Compression fluid enters from two flow inlets of axis 2, passes through core 3 influent stream channel of body sprays the driving recess portion 11 for acting on outer ring 1, generates thrust and pushes the rotation acting of outer ring 1, last compression fluid Corresponding outflow port is returned to by the current drainage channel of core 3, realizes the continuous output of power.It is tied in other structures and embodiment 1 Structure is identical, repeats no more.

Embodiment 3:

The embodiment is substantially the same manner as Example 1, the main distinction are as follows: includes 4 in the utility model fluid power plant Or more independent acting unit form multiple drive power structure, circumferentially arranged 3 or more fluid channels on core, every Fluid channel include 1 rank or more influent stream channel and secondary swash of wave road and along core circumferentially lay and current drainage channel, influent stream channel and The mating surface of left and right core is arranged in current drainage channel.Axis is equipped with the influent stream axle track with fluid channel corresponding number and goes out stream axis Road, compression fluid enter from the influent stream axle track of axis, and the driving recess portion for acting on outer ring is sprayed by core influent stream channel, push outer Circle rotation acting, realizes the continuous output of power, and last compression fluid returns to go out to flow accordingly by each current drainage channel of core Axle track.Other structures are identical as structure in embodiment 1.

Certainly, the fluid driver bed in the embodiment, fluid power plant and live spindle are to pass through transmission mechanism Transmission connection, it should be apparent to a person skilled in the art that in other specific embodiments: the live spindle is connected to this On the outer ring of fluid power plant, being directly connected to for fluid power plant and live spindle can be realized；Alternatively, the fluid dynamic A scroll chuck is directly connected on the outer ring of device, and then the outer ring directly forms the live spindle.

The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this wound Make done modifications and changes, all belong to the scope of the patents of this creation opinion, and is not limited to those disclosed embodiments.

Claims (10)

1. a kind of fluid driver bed, including live spindle and the fluid power plant of the live spindle is driven, feature exists In the fluid power plant includes:

One outer ring, inner ring surface circumferential direction are equipped with multiple driving recess portions；

One core, be co-axially located in outer ring and can opposite outer ring rotating, the outer ring surface of core is equipped with an at least spout, at least One row mouthful and the swash of wave road at least once between spout and row's mouth；

An at least influent stream channel is connected to an at least spout；And

An at least current drainage channel, a connection at least row mouthful；

Fluid enters from influent stream channel, by the ejection stepwise of the spout and secondary swash of wave road of core, acts in the circumferential direction of outer ring At least two driving recess portions generate thrust to these driving recess portions and push outer ring rotation acting, power output realized, finally, fluid It is discharged by the row mouthful of core through current drainage channel.

2. fluid driver bed according to claim 1, it is characterised in that: an at least influent stream channel, an at least spout, extremely Few two drivings recess portion, swash of wave road, an at least row mouthful and an at least current drainage channel form independent acting unit, the fluid at least once It include at least one unit that independently does work in power device.

3. fluid driver bed according to claim 1, it is characterised in that: influent stream channel and current drainage channel are formed in core Interior, spout and secondary swash of wave road on core, driving recess portion connection corresponding with outer ring, secondary swash of wave road is circumferentially set along core or outer ring It sets.

4. fluid driver bed according to claim 3, it is characterised in that: include on core

Influent stream channel forms spout in core circumferential surface, and trend is by the intermediate curved line extended outward, spout and outer ring pair The driving recess portion connection answered, forms the 1st rank runner；

Secondary swash of wave road, trend are that core edge inwardly arrives the curved line that edge bends extension again, each time swash of wave road and outer ring Corresponding front and back two drives recess portion connection, circumferentially forms N rank runner along core, wherein the natural number of N >=2；

Each rank runner driving recesses fit corresponding with outer ring forms the multistage stroke structure that fluid energy successively decreases.

5. fluid driver bed according to claim 3, it is characterised in that: the trend in core influent stream channel be from it is intermediate toward The log spiral of outer extension, in the core on mandrel line, log spiral moves towards angle for the pole setting of the log spiral 15°-45°。

6. fluid driver bed according to claim 1, it is characterised in that: the fluid power plant further includes an axis, outside Circle and core coaxial arrangement are respectively communicated to influent stream channel and the drainage of core on axis, offering on the axis into and out of stream axle track Channel.

7. fluid driver bed according to claim 2, it is characterised in that: include two or more in the fluid power plant Independent acting unit forms multiple drive power structure, and is circumferentially arranged along core or outer ring.

8. according to claim 1 to fluid driver bed described in one of 7, it is characterised in that: be provided with 2 on the inner ring surface of outer ring A above driving recess portion, each driving recess portion have a profile bottom surface and drive surface, and the contour line of profile bottom surface is logarithm spiral shell The heart in the core is arranged in spin line, pole.

9. according to claim 1 to fluid driver bed described in one of 7, it is characterised in that: including a machine base, the machine base It is equipped with main shaft gearbox, which is set on the main shaft gearbox, which is set in the machine base, and It is sequentially connected by the main shaft gearbox and the live spindle.

10. according to claim 1 to fluid driver bed described in one of 7, it is characterised in that: the live spindle is connected to the stream On the outer ring of body power device,

Alternatively, being connected with a chuck on the outer ring of the fluid power plant, and then it is integrated in the live spindle.