CN107571038A - A kind of fluid pressure turntable - Google Patents
A kind of fluid pressure turntable Download PDFInfo
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- CN107571038A CN107571038A CN201710826919.XA CN201710826919A CN107571038A CN 107571038 A CN107571038 A CN 107571038A CN 201710826919 A CN201710826919 A CN 201710826919A CN 107571038 A CN107571038 A CN 107571038A
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- mandrel
- fluid
- bearing
- oil pocket
- sleeve
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Abstract
The present invention relates to a kind of fluid pressure turntable, including mandrel, the absorbent module being fixedly connected with the mandrel, the driving conducting subassembly, bearing, sleeve, upper end cover and the bottom end cover that are fixedly connected with the mandrel；Core sleeve is in bearing, and bearing holder (housing, cover) is in sleeve；Opened up on the inner peripheral surface that bearing contacts with mandrel and be connected with the bearing bore of fluid and produce oil pressure and make mandrel side be suspended in fluid to be rotated；The top surface oil pocket for being connected with fluid is set to make directly to contact with the fluid in top surface oil pocket because bottom surface oil pocket produces the mandrel that suspends upwards of oil pressure on the lower surface of upper end cover, mandrel surrounding contacts with fluid during rotation, and rotation precision and stability are higher；Connected between each oil pocket and fuel supply chamber by pore, throttling control is carried out by pore, solves the technical problem that static pressure turntable precision is not high, stability is poor in the prior art.
Description
Technical field
The invention belongs to precision manufactureing equipment technology field, and in particular to a kind of fluid pressure turntable.
Background technology
Accurate and ultra-precision machine tool is accurate and Ultra-precision Turning basis；Lathe turntable precision directly affects work pieces process
Precision, therefore turntable is the core component that ultra-precision machine tool ensures machining accuracy, not only to have high running accuracy, Er Qieyao
With high-mechanic rigidity, good hot expansibility, vibration resistance and process and assemble etc..
Turntable is due to make it that machining accuracy is low using conventional contacts bearing at present, the problems such as static pressure turntable bearing capacity difference,
Traditional direct contact bearing frictional resistance is big, and hydrostatic bearing, which is operated in extremely low rotating speed, to be occurred creeping and crawl, work
Temperature rise is also easy to produce under high rotating speed, vibration and noise are larger；Lubricant has pollution to environment；Fatal weak of rolling bearing
Point is short life, and life-span distribution is discrete, and particularly high-speed bearing is more very.
High precision high rigidity closed type fluid static pressure disclosed in Chinese patent CN101407024A/pressure/dynamic-static pressure rotary work
Platform, the method for giving another raising rigidity is the multiple axially and radially loading bearings installed vertically by multiple times
Change and bearing guide are fixed, if equalizer bearing balances, the kinematic pair synchronous axial system connection of multiple bearings, fixed joint passes through work
Platform base connects；The bearing pair of the secondary sliding pair of journal bearing and cod is synchronized with the movement into rigid unitary, each bearing
There is oil pocket on the sliding surface of its geo-stationary of sliding pair.
But the pressure/dynamic-static pressure rotary table, due to setting multiple bearings, oil pressure caused by each bearing is difficult to holding one
Cause, cause mandrel certain inclination when rotating to be present, the precision and stability of rotation is not good enough.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided a kind of fluid pressure turntable, by set bearing bore,
Bottom surface oil pocket and top surface oil pocket simultaneously produce oil pressure and mandrel is suspended in fluid and rotate, and solve prior art intermediate station processing essence
Spend the technical problem that low, frictional resistance is big, stability is poor.
To achieve the above object, the present invention provides following technical scheme：
A kind of fluid pressure turntable, including mandrel, the absorbent module that is fixedly connected with the mandrel and with the mandrel
The driving conducting subassembly being fixedly connected, it is characterised in that also include：
Bearing, the bearing is arranged circumferentially to be opened up with the mandrel and on its internal inner peripheral surface contacted with mandrel
There is the internal bearing bore for being connected with fluid, the internal bottom surface oil pocket for being connected with fluid is circumferentially offered on the upper surface of the bearing；Work
When making, inside is connected with the bearing bore of fluid and bottom surface oil pocket produces oil pressure and mandrel bottom surface and side is suspended in fluid；
Sleeve, the sleeve be arranged with the bearing, its be internally provided with for the fuel supply chamber to each oil pocket fuel feeding and
Oil circuit；
Upper end cover, the upper end cover are fixedly connected with the sleeve and contact setting with the mandrel, and it is contacted with mandrel
The internal top surface oil pocket for being connected with fluid is circumferentially offered on face；During work, the top surface oil pocket that inside is connected with fluid produces oil pressure
Mandrel top surface is set to be suspended in fluid；And
Bottom end cover, the bottom end cover are sheathed on the mandrel and are fixedly connected with the sleeve, it is with mandrel, sleeve it
Between form fluid space.
As an improvement, the bearing bore is integrated setting.
As an improvement, the bearing bore is uniformly arranged for interruption, its quantity is at least six.
As an improvement, being provided with annular boss in the middle part of the inner peripheral surface of the sleeve, the annular boss includes being opened in
On its upper surface to bottom surface oil pocket fuel feeding and with the bottom surface fuel supply chamber of the oil communication and be opened in its middle part give bearing bore supply
Oil and with the side fuel supply chamber of the oil communication.
As an improvement, circumferentially offered on the upper surface of the sleeve to top surface oil pocket fuel feeding and with the oil communication
Bottom surface fuel supply chamber.
As an improvement, the bearing bore and side fuel supply chamber, top surface oil pocket and top surface fuel supply chamber and bottom surface oil pocket and bottom
Connected between the fuel supply chamber of face by some pores.
As an improvement, the mandrel is set along linear direction in step, it includes the core that diameter from bottom to up increases successively
Axle first step, mandrel second step, the step of mandrel the 3rd, the step of mandrel the 4th and diameter increases successively from top to bottom mandrel
5th step, the step of mandrel the 6th and the step of mandrel the 7th, the stepped diameters of mandrel the 7th are more than the 4th stepped diameters, described
The step outer circumference surface of mandrel the 7th is arranged at intervals with the sleeve inner peripheral surface.
As an improvement, the absorbent module includes being sheathed on the step of mandrel the 5th and being fixedly connected with the mandrel
Adpting flange and the magnechuck that is fixedly connected with the adpting flange, the upper surface interval of the adpting flange and the sleeve
Set.
As an improvement, it is described driving conducting subassembly include be arranged with the belt pulley on the mandrel second step and be arranged and
Conducting slip ring on the mandrel first step.
As an improvement, the lower surface gap setting of the bottom end cover upper surface and the step of mandrel the 4th and being arranged thereon
There is oil sealing.
The beneficial effects of the present invention are：
(1) present invention is connected with the bearing bore generation oil pressure of fluid by being opened up on the inner peripheral surface that is contacted in bearing with mandrel
Make mandrel side be suspended in fluid to be rotated, mandrel side directly contacts with the fluid in bearing bore during rotation, friction system
Number is relatively direct smaller with bearing touch, improves rotation precision when mandrel rotates；Simultaneously upper surface on bearing circumferentially
The bottom surface oil pocket for being connected with fluid is opened up, the mandrel that bottom surface oil pocket produces oil pressure and makes to be positioned at the bearing upper surface suspends upwards, leads to
Fluid support mandrel is crossed, in order to avoid mandrel floats all the way up, the top surface for being connected with fluid is set on the lower surface of upper end cover
Oil pocket makes directly to contact with the fluid in top surface oil pocket because bottom surface oil pocket produces the mandrel that suspends upwards of oil pressure, mandrel during rotation
Surrounding contacts with fluid, and rotation precision and stability are higher；
(2) connected between each oil pocket of the present invention and fuel supply chamber by pore, fuel supply chamber is set by being evenly distributed
Pore fuel feeding is carried out to oil pocket, throttling control is carried out by pore when passing through pore, controls fluid in oil pocket
Flow, while oil pressure caused by oil pocket is controlled, make the circumferential uniform force in fluid of mandrel surrounding, avoid circumferential discontinuity
Causing inclined arbor to cause, mandrel rotation precision is low, stability is poor；
In a word, the advantages that present invention has simple in construction, and turntable rotation precision is high, stability is good.
Brief description of the drawings
For the technical scheme of the clearer explanation embodiment of the present invention, required use in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings discussed below is only some embodiments of the present invention, for ability
For the those of ordinary skill in domain, on the premise of not paying creative work, it is attached other can also to be obtained according to these accompanying drawings
Figure.
Fig. 1 is the overall structure sectional view of the present invention；
Fig. 2 is middle (center) bearing structural representation of the present invention；
Fig. 3 is middle sleeve structural representation of the present invention；
Fig. 4 is middle sleeve structure sectional view of the present invention；
Fig. 5 is upper end cover structural representation in the present invention；
Fig. 6 is core shaft structure schematic diagram in the present invention.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely illustrated below in conjunction with the accompanying drawings.
Embodiment one
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
As shown in figure 1, a kind of fluid pressure turntable, including mandrel 1, be fixedly connected with the mandrel 1 absorbent module 2,
And the driving conducting subassembly 3 being fixedly connected with the mandrel 1, in addition to：
Bearing 4, the bearing 4 be arranged with the mandrel 1 and on its internal inner peripheral surface contacted with mandrel 1 circumferentially
The internal bearing bore 41 for being connected with fluid is offered, the internal bottom surface for being connected with fluid is circumferentially offered on the upper surface of the bearing 4
Oil pocket 42；During work, inside is connected with the bearing bore 41 of fluid and bottom surface oil pocket 42 produces oil pressure and the bottom surface of mandrel 1 and side is suspended
In fluid；
Sleeve 5, the sleeve 5 are arranged and on the bearing 4, it is internally provided with for the fuel supply chamber to each oil pocket fuel feeding
51 and oil circuit 52；
Upper end cover 6, the upper end cover 6 are fixedly connected with the sleeve 5 and contact setting with the mandrel 1, itself and mandrel 1
The internal top surface oil pocket 61 for being connected with fluid is circumferentially offered on contact surface；During work, inside is connected with the top surface oil pocket 61 of fluid
Producing oil pressure makes the top surface of mandrel 1 be suspended in fluid；And
Bottom end cover 7, the bottom end cover 6 are sheathed on the mandrel 1 and are fixedly connected with the sleeve 5, its with mandrel 1,
Fluid space 71 is formed between sleeve 5.
Oil is produced it should be noted that being opened up on the inner peripheral surface that bearing 4 contacts with mandrel 1 and being connected with the bearing bore 41 of fluid
Pressure makes the side of mandrel 1 be suspended in fluid to be rotated, and the side of mandrel 1 directly contacts with the fluid in bearing bore 41 during rotation,
Coefficient of friction is relatively direct smaller with bearing touch, improves rotation precision when mandrel rotates；Simultaneously on the upper surface of bearing 4
The bottom surface oil pocket 42 for being connected with fluid is circumferentially opened up, bottom surface oil pocket 42 produces the mandrel 1 that oil pressure makes to be positioned at the upper surface of bearing 4
Suspend, by fluid support mandrel 1, in order to avoid mandrel 1 floats all the way up, set on the lower surface of upper end cover 6 upwards
Be connected with the top surface oil pocket 61 of fluid make due to bottom surface oil pocket 42 produce the mandrel 1 that suspends upwards of oil pressure directly with top surface oil pocket 61
Fluid contact, the surrounding of mandrel 1 contacts with fluid during rotation, and rotation precision and stability are higher；
Further, as a preferred embodiment, the bearing bore 41 is integrated setting.
It should be noted that bearing bore 41 is wholely set the area for increasing bearing bore 41, make to be in oil level therein
Product also increases, and mandrel 1 and fluid contact area increase, the face contacted equivalent to the script of mandrel 1 with the inner peripheral surface of bearing 4 during rotation
Product is completely converted into the area that contact with fluid, mandrel 1 is rotated caused frictional force smaller, and precision is higher during rotation.
Further, as shown in figure 1, being provided with annular boss 53 in the middle part of the inner peripheral surface of the sleeve 5, the convex annular
Platform includes opening up the bottom surface fuel supply chamber 511 connected to the fuel feeding of bottom surface oil pocket 42 on end face and with the oil circuit 52 thereon and opened up
The fuel feeding of bearing bore 41 and the side fuel supply chamber 512 connected with the oil circuit 52 are given in its middle part, bottom surface fuel supply chamber 511 and side supply
Oil pocket 512 carries out fuel feeding to bottom surface oil pocket 42 and bearing bore 41 respectively makes its internal generation oil pressure.
Further, as shown in figure 1, circumferentially offered on the upper surface of the sleeve 5 to the fuel feeding of top surface oil pocket 61 and
The top surface fuel supply chamber 513 connected with the oil circuit 52, top surface fuel supply chamber 513 are used to make inside it to the progress fuel feeding of top surface oil pocket 61
Produce oil pressure.
It should be noted that bearing 4 is arranged and on the sleeve 5, in order to prevent bearing 4, drop will be in sleeve 5 downwards
Portion sets an annular boss 53 to position bearing 4, and to be set with the end face contacted and periphery in annular boss 53
Corresponding bottom surface fuel supply chamber 511 and side fuel supply chamber 512 carry out fuel feeding to bottom surface oil pocket 42 and bearing bore 41 makes its internal generation
Oil pressure is suspended among fluid with support mandrel 1 and rotated.
Further, as shown in figure 1, the bearing bore 41 and side fuel supply chamber 512, top surface oil pocket 61 and top surface fuel supply chamber
Connected between 511 and bottom surface oil pocket 42 and bottom surface fuel supply chamber 513 by some pores 514.
It should be noted that being connected between each oil pocket and fuel supply chamber by pore, fuel supply chamber is by being evenly distributed
The pore 514 of setting carries out fuel feeding to oil pocket, and throttling control, control oil are carried out by pore 514 when by pore 514
The flow of the fluid of intracavitary, while oil pressure caused by oil pocket is controlled, make the circumferential uniform force in fluid of the surrounding of mandrel 1, avoid
Circumferential discontinuity causes the inclination of mandrel 1 to cause, and mandrel rotation precision is low, stability is poor.
Further, as shown in figure 3, the mandrel 1 along linear direction in step set, it include from bottom to up diameter according to
The mandrel first step 11 of secondary increase, mandrel second step 12, the step 13 of mandrel the 3rd, the step 14 of mandrel the 4th and from top to bottom
The step 15 of mandrel the 5th, the step 16 of mandrel the 6th and the step 17 of mandrel the 7th that diameter increases successively, the step of mandrel the 7th
17 diameters are more than the diameter of the 4th step 14, and the outer circumference surface of the 7th step of mandrel 17 is set with the inner peripheral surface interval of sleeve 5
Put.
It should be noted that the mandrel 1 will realize that the high rotation of high accuracy, stability will be on sleeve 5 and bearing 4
Complete to be rotated again after positioning, the positioning of mandrel 1 leans on the lower surface backstop of the step 17 of mandrel the 7th in the upper end of the bearing 4
On face, the lower surface backstop of the top end cap 6 of positioning of upper end cover 6 is on the upper surface of the 7th step 17.
Further, as shown in figure 1, the absorbent module 2 include be sheathed on the step 15 of mandrel the 5th and with institute
State the adpting flange 11 that mandrel 1 is fixedly connected and the magnechuck 22 being fixedly connected with the adpting flange 21, the adpting flange
21 are arranged at intervals with the upper surface of the sleeve 5.
The magnechuck 22 of absorbent module 2 is driven to rotate it should be noted that mandrel 1 rotates, magnechuck 22 passes through electricity
Magnetic suck clamps workpiece and rotated, and to realize that the high-precision rotary of magnechuck 22 should ensure that magnechuck 22 and the mandrel
1 height with one heart, by setting adpting flange 21 between magnechuck 22 and mandrel 1, is improved between magnechuck 22 and mandrel 1
Sealing.
Further, it is described driving conducting subassembly 3 include be arranged with the belt pulley 31 on the mandrel second step 12 and
Be arranged with the conducting slip ring 32 on the mandrel first step 11, for being driven conduction to static pressure turntable, it is ensured that turntable has
Driving force is driven.
Further, the lower surface gap setting of the upper surface of bottom end cover 7 and the step 14 of mandrel the 4th and thereon
It is arranged with oil sealing 72.
It should be noted that the lower surface gap setting of the bottom end cover 7 and the step 14 of mandrel the 4th, bottom end cover 7
On be not provided with oil pocket, the fluid in static pressure turntable after each oil pocket after oil circuit is entered in fluid space 71 and cached by
Oil-out is discharged, and is set oil sealing 72 to prevent fluid from leaking, is polluted.
Embodiment two
Identical wherein with embodiment one or corresponding part use with one corresponding reference of embodiment, risen to be easy
See, hereafter only description and the distinctive points of embodiment one.The difference of the embodiment two and embodiment one is：As shown in Fig. 2
In the present embodiment, the bearing bore 41 is uniformly arranged for interruption, and its quantity is at least six.
It should be noted that in embodiment one, the bearing bore 41 is integrated setting, increases connecing for fluid and mandrel 1
Contacting surface is accumulated, and reduces frictional resistance, and the bearing bore 41 interruption is uniformly arranged in the present embodiment, between each bearing bore 41 by
Respective pore 514 carries out fuel feeding and throttling, it is ensured that the oil pressure of each bearing bore 41 is consistent, ensure the surrounding of mandrel 1 by
Power is uniform, further increases rotation precision and stability.
The course of work：
Oil inlet is passed through fluid into sleeve 5, and fluid is flowed in sleeve 5 between each oil circuit, enters bottom surface fuel feeding
Chamber 513, side fuel supply chamber 512 and top surface fuel supply chamber 511, have and open up some pores 514 thereon to bottom surface oil pocket 42, axle
Hold chamber 41 and top surface oil pocket 61 carries out fuel feeding and carries out the consistent oil pressure of throttling generation by the pore 514, mandrel 1 is in oil pressure
Supporting role low suspension is in fluid, while driving conducting subassembly 3 to be driven mandrel 1 makes it under suspended state in fluid
The middle connected magnechuck 22 of rotation drive that carries out rotates, and the absorption of magnechuck 22 clamps work and entered by external equipment
Row processing.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the equipment or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
The foregoing description of the disclosed embodiments, those skilled in the art are made not depart from the spirit and scope of the present invention
In the case of, various changes or equivalence replacement can be carried out to these features and embodiment.In addition, under the teachings of the present invention,
These features and embodiment can be modified with adapt to particular situation and material without departing from the present invention spirit and
Scope.Therefore, the present invention is not limited to the particular embodiment disclosed, and falls with claims hereof scope
Interior embodiment belongs to protection scope of the present invention.
Claims (10)
1. a kind of fluid pressure turntable, including mandrel (1), the absorbent module (2) being fixedly connected with the mandrel (1), Yi Jiyu
The driving conducting subassembly (3) that the mandrel (1) is fixedly connected, it is characterised in that also include：
Bearing (4), the bearing (4) are arranged and edge on the inner peripheral surface contacted on the mandrel (1) and inside it with mandrel (1)
The internal bearing bore (41) for being connected with fluid is circumferentially offered, circumferentially offering inside on the upper surface of the bearing (4) is connected with oil
The bottom surface oil pocket (42) of liquid；During work, inside is connected with the bearing bore (41) of fluid and bottom surface oil pocket (42) produces oil pressure and makes mandrel
(1) bottom surface and side are suspended in fluid；
Sleeve (5), the sleeve (5) are arranged and on the bearing (4), it is internally provided with for the fuel feeding to each oil pocket fuel feeding
Chamber (51) and oil circuit (52)；
Upper end cover (6), the upper end cover (6) are fixedly connected with the sleeve (5) and contact setting with the mandrel (1), its with
The internal top surface oil pocket (61) for being connected with fluid is circumferentially offered on mandrel (1) contact surface；During work, inside is connected with the top of fluid
Face oil pocket (61), which produces oil pressure, makes mandrel (1) top surface be suspended in fluid；And
Bottom end cover (7), the bottom end cover (6) are sheathed on the mandrel (1) and are fixedly connected with the sleeve (5), itself and core
Fluid space (71) are formed between axle (1), sleeve (5).
2. a kind of fluid pressure turntable according to claim 1, it is characterised in that the bearing bore (41), which is integrated, to be set
Put.
3. a kind of fluid pressure turntable according to claim 1, it is characterised in that the bearing bore (41) is uniform for interruption
Set, its quantity is at least six.
4. a kind of fluid pressure turntable according to claim 1, it is characterised in that the inner peripheral surface of the sleeve (5)
Middle part is provided with annular boss (53), the annular boss include opening up thereon on end face to bottom surface oil pocket (42) fuel feeding and with institute
State oil circuit (52) connection bottom surface fuel supply chamber (511) and be opened in its middle part to bearing bore (41) fuel feeding and with the oil circuit (52)
The side fuel supply chamber (512) of connection.
A kind of 5. fluid pressure turntable according to claim 1, it is characterised in that edge on the upper surface of the sleeve (5)
The bottom surface fuel supply chamber (513) for circumferentially offering to top surface oil pocket (61) fuel feeding and being connected with the oil circuit (52).
6. a kind of fluid pressure turntable according to claim 1, it is characterised in that the bearing bore (41) and side fuel feeding
Between chamber (512), top surface oil pocket (61) and top surface fuel supply chamber (511) and bottom surface oil pocket (42) and bottom surface fuel supply chamber (513)
Connected by some pores (514).
7. a kind of fluid pressure turntable according to claim 1, it is characterised in that the mandrel (1) is in along linear direction
Step is set, and it includes mandrel first step (11), mandrel second step (12), mandrel that diameter from bottom to up increases successively the
Three steps (13), the step (14) of mandrel the 4th and diameter increases successively from top to bottom the step (15) of mandrel the 5th, mandrel the 6th
Step (16) and the step (17) of mandrel the 7th, mandrel the 7th step (17) diameter is more than the 4th step (14) diameter, described
Step (17) outer circumference surface of mandrel the 7th is arranged at intervals with the sleeve (5) inner peripheral surface.
8. a kind of fluid pressure turntable according to claim 7, it is characterised in that the absorbent module (2) includes being arranged
In on the step (15) of mandrel the 5th and the adpting flange (21) that is fixedly connected with the mandrel (1) and with the adpting flange
(21) magnechuck (22) being fixedly connected, the adpting flange (21) and the upper surface of the sleeve (5) are arranged at intervals.
9. a kind of fluid pressure turntable according to claim 7, it is characterised in that the driving conducting subassembly (3) includes
It is arranged and the belt pulley (31) on the mandrel second step (12) and is arranged and the conduction on the mandrel first step (11)
Slip ring (32).
10. a kind of fluid pressure turntable according to claim 7, it is characterised in that bottom end cover (7) upper surface and institute
State the lower surface gap setting of the step (14) of mandrel (1) the 4th and be arranged with oil sealing (72) thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826919.XA CN107571038A (en) | 2017-09-14 | 2017-09-14 | A kind of fluid pressure turntable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826919.XA CN107571038A (en) | 2017-09-14 | 2017-09-14 | A kind of fluid pressure turntable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107571038A true CN107571038A (en) | 2018-01-12 |
Family
ID=61033666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710826919.XA Withdrawn CN107571038A (en) | 2017-09-14 | 2017-09-14 | A kind of fluid pressure turntable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107571038A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317318A (en) * | 2018-01-19 | 2018-07-24 | 兰州理工大学 | A kind of through type chicksan |
| CN110142616A (en) * | 2019-05-08 | 2019-08-20 | 承德石油高等专科学校 | A kind of floated high-precision liquid static pressure turntable of double helix |
| CN115077759A (en) * | 2022-06-15 | 2022-09-20 | 河南科技大学 | Measuring equipment and measuring method for dynamic friction torque of large-size bearing |
-
2017
- 2017-09-14 CN CN201710826919.XA patent/CN107571038A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317318A (en) * | 2018-01-19 | 2018-07-24 | 兰州理工大学 | A kind of through type chicksan |
| CN108317318B (en) * | 2018-01-19 | 2019-10-22 | 兰州理工大学 | A kind of through type chicksan |
| CN110142616A (en) * | 2019-05-08 | 2019-08-20 | 承德石油高等专科学校 | A kind of floated high-precision liquid static pressure turntable of double helix |
| CN110142616B (en) * | 2019-05-08 | 2021-06-11 | 承德石油高等专科学校 | Double-spiral suspension type high-precision hydrostatic pressure rotary table |
| CN115077759A (en) * | 2022-06-15 | 2022-09-20 | 河南科技大学 | Measuring equipment and measuring method for dynamic friction torque of large-size bearing |
| CN115077759B (en) * | 2022-06-15 | 2024-06-04 | 河南科技大学 | Measuring equipment and measuring method for dynamic friction moment of large-size bearing |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180112 |
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