WO2019062458A1 - 行星滚动微距顶压装置 - Google Patents

行星滚动微距顶压装置 Download PDF

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Publication number
WO2019062458A1
WO2019062458A1 PCT/CN2018/103205 CN2018103205W WO2019062458A1 WO 2019062458 A1 WO2019062458 A1 WO 2019062458A1 CN 2018103205 W CN2018103205 W CN 2018103205W WO 2019062458 A1 WO2019062458 A1 WO 2019062458A1
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WIPO (PCT)
Prior art keywords
planetary
roller
thread
turntable
ring gear
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PCT/CN2018/103205
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English (en)
French (fr)
Inventor
陈继檬
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淄博沃泰斯石化设备有限公司
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Application filed by 淄博沃泰斯石化设备有限公司 filed Critical 淄博沃泰斯石化设备有限公司
Priority to US16/314,874 priority Critical patent/US11149826B1/en
Publication of WO2019062458A1 publication Critical patent/WO2019062458A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/186—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions with reciprocation along the axis of oscillation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
    • F16H13/06—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion
    • F16H13/08—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion with balls or with rollers acting in a similar manner
    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B5/00—Adjusting position or attitude, e.g. level, of instruments or other apparatus, or of parts thereof; Compensating for the effects of tilting or acceleration, e.g. for optical apparatus

Definitions

  • the present disclosure relates to a pressing device, and more particularly to a planetary rolling macro pressing device.
  • the purpose of the present disclosure is to propose a technical solution of a planetary rolling macro pressing device, which improves the performance of heavy load adjustment and precision adjustment of the pressing device.
  • a planetary rolling macro pressing device comprising a chassis, a turntable and a top plate mounted on the central shaft; Between the chassis and the top plate; at least three planetary thread rollers are disposed between the turntable and the top plate, the planetary thread rollers are provided with taper threads, and the turntable faces the top plate One side is provided with a plurality of annular tooth grooves, and the top plate is also provided with a plurality of annular tooth grooves toward one side of the turntable, the annular groove of the turntable and the annular groove of the top plate and the thread of the planetary thread roller Engaging; the planetary thread roller rolls between the turntable and the top plate and rotates about the center axis.
  • a planetary roller cage is disposed between the turntable and the top plate, and the planetary roller cage rotates with the central shaft as a rotating shaft.
  • the planetary roller cage is provided with a planetary roller groove corresponding to the planetary thread roller, and the planetary thread roller is disposed in the planetary roller groove.
  • the planetary roller groove is provided with a roller mounting hole
  • the planetary thread roller is provided with a roller shaft
  • the planetary thread roller is mounted on the planetary roller cage through the roller shaft In the roller mounting hole, the roller shaft of the planetary thread roller is rotated and axially moved in the roller mounting hole.
  • the planetary thread roller is coupled to the planetary roller slot in such a manner that the planetary roller slot is provided with a roller mounting hole with respect to the inner end side of the planetary thread roller, and the inner end of the planetary thread roller is provided with a roller Sub-axis.
  • the planetary thread roller and the planetary roller groove may be connected to each other, wherein the planetary roller groove is provided with a roller mounting hole with respect to the outer end side of the planetary thread roller, and the outer end of the planetary thread roller is provided. There are roller shafts.
  • the planetary thread roller and the planetary roller slot may be connected in a manner that the planetary roller slot is provided with roller mounting holes at opposite ends of the planetary thread roller, and both ends of the planetary thread roller It has a roller shaft.
  • the planetary thread roller is installed in such a manner that the turntable and/or the top plate are provided with an outer ring gear plate and an inner ring gear plate, and the outer end of the planetary thread roller is provided with the outer ring tooth a disk-engaging outer ring gear, the inner end of the planetary thread roller is provided with an inner ring gear meshing with the inner ring gear disk, and the planetary thread roller is surrounded by the outer ring tooth plate and the inner ring tooth plate The central axis rotates.
  • the width of the outer ring gear is larger than the width of the outer ring gear of the planetary thread roller
  • the width of the inner ring gear is larger than the width of the inner ring gear of the planetary thread roller
  • a thrust bearing is disposed between the chassis and the turntable.
  • the thrust bearing between the chassis and the turntable is a thrust roller bearing.
  • the utility model has the beneficial effects that: a planetary thread roller with a taper thread is adopted, the taper thread of the planetary thread roller is in contact with the turntable and the top plate, and reciprocates in the direction of the axis of the turntable to push the top plate to make a trace
  • the lifting and lowering method avoids the high friction and mechanical creep caused by the sliding friction, and can significantly improve the heavy load adjustment and fine adjustment performance of the pressing device.
  • the form of engagement between the rolling element threads and the rotor disk and the stator disk ring groove causes the contact area between them to be wave-shaped.
  • the use of a plurality of planetary threaded rollers increases the load carrying capacity.
  • the device has a self-locking function and is compact in structure, making it suitable for applications with small space.
  • Figure 1 is a structural view of the present disclosure, with a planetary roller cage
  • Figure 2 is an exploded view of the structure of the present disclosure, with a planetary roller cage
  • Figure 3 is a cross-sectional view of the present disclosure, with a planetary roller cage, the two ends of the planetary threaded roller are provided with roller shafts corresponding to the planetary roller cage;
  • FIG. 4 is a structural view of the present disclosure, with the large diameter end of the taper thread of the planetary thread roller facing the center axis.
  • Figure 5 is a cross-sectional view of the present disclosure, with a planetary roller cage, the inner end of the planetary thread roller is provided with a roller shaft corresponding to the planetary roller cage;
  • Figure 6 is a cross-sectional view of the present disclosure, with a planetary roller cage, the outer end of the planetary thread roller is provided with a roller shaft corresponding to the planetary roller cage;
  • Figure 7 is a structural view of the present disclosure, the turntable and the top plate are provided with an outer ring gear plate and an inner ring gear plate;
  • Figure 8 is an exploded view of the structure of the present disclosure, the turntable and the top plate are provided with an outer ring gear plate and an inner ring gear plate;
  • Figure 9 is a cross-sectional view of the present disclosure, the turntable and the top plate are provided with an outer ring gear plate and an inner ring gear plate;
  • Figure 10 is a structural view of the present disclosure, the turntable is provided with an outer ring gear plate and an inner ring gear plate;
  • Figure 11 is a structural view of the present disclosure, the top plate being provided with an outer ring sprocket and an inner ring sprocket.
  • a planetary rolling macro pressing device the planetary rolling macro pressing device comprises a chassis 10 mounted on the center shaft 36, a turntable 20 and a top plate 30; The turntable is disposed between the chassis and the top plate; at least three planetary thread rollers 40 are disposed between the turntable and the top plate, and the planetary threaded rollers are provided with taper threads 41.
  • a plurality of annular tooth grooves 21 are disposed on one side of the turntable toward the top plate, and the top plate is also provided with a plurality of annular tooth grooves 31 toward one side of the turntable, and the annular groove of the turntable and the ring of the top plate
  • the gullet meshes with a thread of a planetary threaded roller; the planetary threaded roller rolls between the turntable and the top plate and rotates about the central axis.
  • the thread taper angle ⁇ of the planetary thread roller may range from 6° to 8°.
  • the thread tooth angle ⁇ of the planetary thread roller may range from 85° to 95°.
  • a planetary roller cage 50 is disposed between the turntable and the top plate, the planetary roller cage rotates with the central shaft as a rotating shaft, and the planetary roller cage is provided with the planetary thread roller Corresponding planetary roller slots 51 are disposed in the planetary roller slots.
  • the planetary roller groove is provided with a roller mounting hole 52, and the planetary thread roller is provided with a roller shaft 42 through which the planetary thread roller is mounted on the roller of the planetary roller cage In the sub-mounting hole, the roller shaft of the planetary thread roller is rotated and axially moved in the roller mounting hole.
  • the planetary roller groove is provided with a roller mounting hole with respect to the inner end side of the planetary thread roller, and the inner end of the planetary thread roller is provided with a roller shaft.
  • the planetary roller groove is provided with a roller mounting hole with respect to the outer end side of the planetary thread roller, and the outer end of the planetary thread roller is provided with a roller shaft.
  • the planetary roller grooves are provided with roller mounting holes at both ends of the planetary thread rollers, and roller shafts are provided at both ends of the planetary thread rollers.
  • the turntable and/or the top plate are provided with outer ring gears (22, 32 in the figure) and inner ring gears (23, 33 in the figure), outside the planetary thread rollers
  • An outer ring gear 43 meshing with the outer ring gear disc is disposed at an end, the inner end of the planetary thread roller is provided with an inner ring gear 44 meshing with the inner ring gear disc, and the planetary thread roller is along the The outer ring and the inner ring are rotated about the central shaft 36.
  • the width K1 of the outer ring gear is greater than the width S1 of the outer ring gear of the planetary thread roller, and the width K2 of the inner ring gear is greater than the width S2 of the inner ring gear of the planetary thread roller.
  • the outer ring gear and the inner ring gear of the planetary thread roller reciprocate in the direction of the center axis along the outer ring tooth plate and the inner ring tooth plate.
  • a thrust bearing 60 is disposed between the chassis and the turntable.
  • the thrust bearing between the chassis and the turntable is a thrust roller bearing.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a planetary rolling macro pressing device includes a chassis 10, a turntable 20 and a top plate 30.
  • the center of the top plate is provided with a center shaft 36, and the top plate, the turntable and the chassis are connected by a central shaft to achieve coaxiality.
  • the turntable is placed between the chassis and the top plate.
  • Five planetary thread rollers 40 are provided between the turntable and the top plate.
  • the planetary thread roller is a planetary threaded roller provided with a taper thread 41.
  • Roller shafts 42 are provided at both ends of the planetary thread rollers.
  • the small-diameter end of the taper thread of the planetary thread roller faces the center axis
  • the large-diameter end of the taper thread of the planetary thread roller faces the outer diameter of the turntable
  • the axis of the planetary thread roller vertically intersects the axis of the center shaft.
  • the side of the turntable facing the top plate (ie, the side in contact with the planetary thread roller) is provided with a plurality of annular tooth grooves 21, which are non-helical tooth grooves, each of which is a complete circular groove .
  • the tooth profile of the annular tooth groove corresponds to the thread of the planetary thread roller, the pitch of the adjacent two annular tooth grooves is equal to the pitch of the planetary thread roller thread, and the tooth angle of the annular tooth groove corresponds to the tooth profile of the planetary thread roller thread.
  • the angle (90°), the annular groove is arranged along the radial direction of the turntable to have an inclination corresponding to the taper angle of the thread of the planetary thread roller, which is half of the taper angle of the thread of the planetary thread roller, which is 3.5°.
  • a rotating handle 24 is provided on the outer circumference of the turntable.
  • the side of the top plate facing the turntable (ie, the side in contact with the planetary thread roller) is also provided with a plurality of annular ring grooves 31, similar to the turntable, the tooth shape of the annular groove of the top plate corresponding to the thread of the planetary thread roller.
  • the pitch of the adjacent two annular slots is equal to the pitch of the planetary thread roller thread
  • the tooth angle of the annular tooth groove corresponds to the tooth angle of the planetary thread roller thread (90°)
  • the annular tooth groove is radially along the turntable
  • the arrangement is provided with an inclination corresponding to the taper angle of the thread of the planetary thread roller, which is half of the taper angle of the thread of the planetary thread roller, which is 3.5°.
  • the annular gullet of the turntable and the annular gullet of the top plate engage the threads of the planetary threaded roller.
  • the crests 25 of the annular gullets of the turntable correspond to the roots 35 of the annular groove of the top plate.
  • a planetary roller cage 50 is disposed between the turntable and the top plate, and the planetary roller cage is coaxial with the center shaft.
  • the planetary roller cage is provided with five planetary roller slots 51 corresponding to the planetary thread rollers, and the planetary roller slots are provided with roller mounting holes 52 corresponding to the roller shafts of the planetary thread rollers, and the roller mounting holes are arranged At both ends of the planetary roller groove relative to the planetary thread roller, a through hole that passes through the planetary roller groove in the axial direction and penetrates the planetary roller cage.
  • the planetary thread roller is mounted in the roller mounting hole of the planetary roller cage through the roller shaft, and the roller shaft of the planetary thread roller rotates in the roller mounting hole and moves axially.
  • a thrust bearing 60 is provided between the chassis and the turntable.
  • the thrust bearing between the chassis and the turntable is a thrust roller bearing.
  • the roller 61 of the thrust roller bearing is disposed in a roller cage 61.
  • the chassis and the turntable serve as two bearing rings of the thrust bearing, respectively.
  • the planetary thread rollers rotate about the central axis in the planetary roller cage.
  • the planetary rolling macro pressing device works in that the bottom surface of the chassis and the top surface of the top plate are respectively in contact with the two pressed surfaces, and the taper threads of the planetary thread rollers are pressed against the annular slots of the top plate and the turntable. on. Rotating the turntable, the planetary thread roller of the friction belt between the turntable and the planetary thread roller rolls between the turntable and the top plate without friction sliding. The rotation of the planetary thread roller causes the taper thread of the planetary thread roller to rotate in the annular groove of the turntable and the top plate and to be displaced toward the center axis, and the taper thread of the planetary thread roller urges the top plate to move axially. In this process, the rotation stroke is much larger than the displacement of the top plate, so that the planetary rolling macro pressing device can obtain high adjustment precision and has a reliable self-locking function. It also has a higher carrying capacity.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • this embodiment is a structural replacement of the first embodiment.
  • the large diameter end of the taper thread of the planetary thread roller faces the center axis
  • the small diameter end of the taper thread of the planetary thread roller faces the outer diameter of the turntable
  • the axis of the planetary thread roller intersects the axis of the center shaft perpendicularly.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • this embodiment is a structural simplification of the first embodiment.
  • the inner end of the planetary thread roller 40 is provided with a roller shaft 42.
  • the planetary roller cage 50 is provided with a planetary roller groove 51 corresponding to the planetary thread roller, and the planetary roller groove is provided with a roller mounting hole 52 with respect to the inner end side of the planetary thread roller.
  • the roller mounting hole is disposed at the inner end of the planetary roller groove relative to the planetary threaded roller, and is an axially through the inner diameter of the planetary roller cage and the planetary roller groove Through hole.
  • the planetary thread roller is mounted in the roller mounting hole of the planetary roller cage through the roller shaft, and the roller shaft of the planetary thread roller rotates in the roller mounting hole and moves axially.
  • This embodiment simplifies the structure of the planetary roller cage under the condition of realizing the function of the planetary roller cage.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • this embodiment is a structural simplification of the first embodiment.
  • the outer end of the planetary thread roller 40 is provided with a roller shaft 42.
  • the planetary roller cage 50 is provided with a planetary roller groove 51 corresponding to the planetary thread roller, and the planetary roller groove is provided with a roller mounting hole 52 with respect to the outer end side of the planetary thread roller, and a roller of the planetary thread roller.
  • the roller mounting hole is disposed at the outer end of the planetary roller groove with respect to the planetary thread roller, and is a through hole that passes through the outer diameter of the planetary roller cage and the planetary roller groove from the axial direction.
  • the planetary thread roller is mounted in the roller mounting hole of the planetary roller cage through the roller shaft, and the roller shaft of the planetary thread roller rotates in the roller mounting hole and moves axially.
  • This embodiment simplifies the structure of the planetary roller cage under the condition of realizing the function of the planetary roller cage.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • this embodiment is a structural replacement of the first embodiment.
  • the turntable is provided with an outer ring gear plate 22 and an inner ring tooth plate 23, the top plate is provided with an outer ring tooth plate 32 and an inner ring tooth plate 33, and the outer ring tooth plate of the turntable corresponds to the outer ring gear plate of the top plate, and the inner portion of the turntable
  • the ring gear plate corresponds to the inner ring gear plate of the top plate.
  • the outer end of the planetary thread roller is provided with an outer ring gear 43 which meshes with the outer ring gear plate of the turntable and the outer ring gear plate of the top plate.
  • the inner end of the planetary thread roller is provided with an inner ring gear 44 which meshes with the inner ring of the turntable and the inner ring of the top plate.
  • the planetary thread rollers roll along the outer ring and the inner ring, and revolve around the central axis, the axis of the planetary thread roller remaining intersecting the axis of the central axis.
  • the width K1 of the outer ring gear (including the outer ring of the turntable and the outer ring of the top plate) is larger than the width S1 of the outer ring gear of the planetary thread roller, and the width K2 of the inner ring gear (including the inner ring of the turntable)
  • the inner ring gear plate of the toothed disc and the top plate is larger than the width S2 of the inner ring gear of the planetary thread roller, and the outer ring gear of the planetary thread roller can be along the outer ring gear (including the outer ring of the turntable and the top plate of the turntable)
  • the width of the outer ring gear wheel moves, and the inner ring gear of the planetary thread roller can move along the width of the inner ring gear plate (including the inner ring gear plate of the turntable and the inner ring gear plate of the top plate), so that the planetary thread roller is oriented
  • the center axis direction reciprocates.
  • the planetary rolling macro pressing device of the embodiment eliminates the planetary roller cage, simplifies the structure, and can make the device structure more compact.
  • this embodiment is a structural simplification of the fifth embodiment.
  • the function of the fifth embodiment can also be realized by providing only the outer ring and the inner ring on the turntable.
  • the turntable 20 is provided with an outer ring gear plate 22 and an inner ring tooth plate 23, and the top plate 30 is provided with an outer ring groove 32a corresponding to the outer ring gear plate of the turntable, and an inner ring corresponding to the inner ring of the turntable. Ring groove 33a.
  • the outer end of the planetary thread roller is provided with an outer ring gear 43 meshing with the outer ring gear of the turntable, and the inner end of the planetary thread roller is provided with an inner ring gear 44 meshing with the inner ring gear of the turntable, and the planetary thread roller is along the turntable
  • the outer ring and the inner ring are rotated about the central shaft 36.
  • the planetary rolling macro pressing device of the present embodiment eliminates the outer ring tooth plate and the inner ring tooth plate of the top plate, further simplifying the structure.
  • this embodiment is a structural simplification of the fifth embodiment.
  • the function of the fifth embodiment can also be realized by providing only the outer ring and the inner ring on the top plate.
  • the top plate 30 is provided with an outer ring gear plate 32 and an inner ring gear plate 33.
  • the turntable 20 is provided with an outer ring groove 22a corresponding to the outer ring tooth plate of the turntable, and an inner ring corresponding to the inner ring of the turntable. Ring groove 23a.
  • the outer end of the planetary thread roller is provided with an outer ring gear 43 meshing with the outer ring gear of the top plate, and the inner end of the planetary thread roller is provided with an inner ring gear 44 meshing with the inner ring gear of the top plate, and the planetary thread roller
  • the outer ring and the inner ring of the top disk are rotated about the center shaft 36.
  • the planetary rolling macro pressing device of the present embodiment eliminates the outer ring gear plate and the inner ring gear plate of the turntable, which further simplifies the structure.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Transmission Devices (AREA)

Abstract

一种行星滚动微距顶压装置，行星滚动微距顶压装置包括安装在中轴(36)上的底盘(10)、转盘(20)和顶盘(30)；在转盘(20)和顶盘(30)之间设有至少三个行星螺纹滚子(40)，在转盘(20)和顶盘(30)设有多圈环形齿槽(21,31)，转盘(20)的环形齿槽(21)和顶盘(30)的环形齿槽(31)与行星螺纹滚子(40)的螺纹啮合；行星螺纹滚子(40)在转盘(20)和顶盘(30)之间滚动、并围绕中轴(36)转动。

Description

行星滚动微距顶压装置
相关申请的交叉引用
本申请主张在2017年9月29日在中国提交的中国专利申请号No.201710906046.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开属于顶压装置，尤其涉及一种行星滚动微距顶压装置。
背景技术
在工业生产、工程建设和科学研究领域，经常需要对设备和部件的位置进行精密微调，在较小的调节范围内施加顶压力的需求非常普遍。如：工业领域中对设备调节水平、间隙等；在工程领域的桥梁施工中调整衔接位置的高度、间隙等；日常生活中，家具和电器调节支腿等。目前常用的微距调节方式采用普通螺纹配合的顶压装置最为常见。但是，这种顶压装置中存在螺纹间的摩擦，在进行重负载的调节时较为困难，在进行精密微调时会发生“机械爬行”的现象，调节的精细程度不尽如人意。
发明内容
本公开的目的是提出一种行星滚动微距顶压装置的技术方案，提高顶压装置的重负载调节和精密调节的性能。
为了实现上述目的，本公开的技术方案是：一种行星滚动微距顶压装置，所述行星滚动微距顶压装置包括安装在中轴上的底盘、转盘和顶盘；所述转盘设置在所述底盘和顶盘之间；在所述转盘和所述顶盘之间设有至少三个行星螺纹滚子，所述行星螺纹滚子设有锥螺纹，在所述转盘朝向所述顶盘的一面设有多圈环形齿槽，所述顶盘朝向所述转盘的一面也设有多圈环形齿槽，所述转盘的环形齿槽和顶盘的环形齿槽与行星螺纹滚子的螺纹啮合；所述行星螺纹滚子在所述转盘和所述顶盘之间滚动、并围绕所述中轴转动。
更进一步，为了使行星螺纹滚子按正确的方式运行，所述转盘和所述顶 盘之间设有行星滚子保持架，所述行星滚子保持架以所述中轴为转轴转动，所述行星滚子保持架设有与所述行星螺纹滚子对应的行星滚子槽，所述行星螺纹滚子设置在所述行星滚子槽中。
更进一步，所述行星滚子槽设有滚子安装孔，所述行星螺纹滚子设有滚子轴，所述行星螺纹滚子通过所述滚子轴装在所述行星滚子保持架的滚子安装孔中，所述行星螺纹滚子的滚子轴在所述滚子安装孔中转动和轴向移动。
更进一步，行星螺纹滚子与行星滚子槽的连接方式是，所述行星滚子槽相对于行星螺纹滚子内端侧设有滚子安装孔，所述行星螺纹滚子内端设有滚子轴。
更进一步，行星螺纹滚子与行星滚子槽的连接方式还可以是，所述行星滚子槽相对于行星螺纹滚子外端侧设有滚子安装孔，所述行星螺纹滚子外端设有滚子轴。
更进一步，行星螺纹滚子与行星滚子槽的连接方式还可以是，所述行星滚子槽相对于行星螺纹滚子的两端设有滚子安装孔，所述行星螺纹滚子的两端设有滚子轴。
更进一步，行星螺纹滚子的安装方式是，所述转盘和/或所述顶盘设有外圈齿盘和内圈齿盘，所述行星螺纹滚子外端设有与所述外圈齿盘啮合的外圈齿轮，所述行星螺纹滚子内端设有与所述内圈齿盘啮合的内圈齿轮，所述行星螺纹滚子沿所述外圈齿盘和内圈齿盘围绕所述中轴转动。
更进一步，所述外圈齿盘的宽度大于所述行星螺纹滚子的外圈齿轮的宽度，所述内圈齿盘的宽度大于所述行星螺纹滚子的内圈齿轮的宽度，所述行星螺纹滚子的外圈齿轮和内圈齿轮沿所述外圈齿盘和内圈齿盘向中轴方向往复移动。
更进一步，所述底盘和所述转盘之间设有推力轴承。
更进一步，为了增强承载能力，所述底盘和所述转盘之间的推力轴承是推力滚子轴承。
本公开的有益效果是：采用设有锥螺纹的行星螺纹滚子，行星螺纹滚子的锥螺纹与转盘和顶盘之间接触滚动，并向转盘的轴心方向往复移动，推动顶盘做微量的升降；滚动摩擦方式避免了由于滑动摩擦带来的高摩擦力和机 械爬行现象，可显著提高顶压装置的重负载调节和精密调节的性能。另外，滚动体螺纹与转子盘和定子盘环槽之间的啮合形式使它们之间的接触面积呈波浪式分布。采用多个行星螺纹滚子可提高承载能力，装置具有自锁功能，结构紧凑，适合于空间较小的应用场合。
下面结合附图和实施例对本公开作一详细描述。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开结构图，设有行星滚子保持架；
图2是本公开结构分解图，设有行星滚子保持架；
图3是本公开剖视图，设有行星滚子保持架，行星螺纹滚子的两端设有与行星滚子保持架对应的滚子轴；
图4是本公开结构图，行星螺纹滚子的锥螺纹的大径端朝向中轴。
图5是本公开剖视图，设有行星滚子保持架，行星螺纹滚子的内侧端设有与行星滚子保持架对应的滚子轴；
图6是本公开剖视图，设有行星滚子保持架，行星螺纹滚子的外侧端设有与行星滚子保持架对应的滚子轴；
图7是本公开结构图，转盘和顶盘设有外圈齿盘和内圈齿盘；
图8是本公开结构分解图，转盘和顶盘设有外圈齿盘和内圈齿盘；
图9是本公开剖视图，转盘和顶盘设有外圈齿盘和内圈齿盘；
图10是本公开结构图，转盘设有外圈齿盘和内圈齿盘；
图11是本公开结构图，顶盘设有外圈齿盘和内圈齿盘。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是 全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
如图1、图2、图3和图4，一种行星滚动微距顶压装置，所述行星滚动微距顶压装置包括安装在中轴36上的底盘10，转盘20和顶盘30；所述转盘设置在所述底盘和顶盘之间；在所述转盘和所述顶盘之间设有至少三个行星螺纹滚子40，所述行星螺纹滚子设有锥螺纹41，在所述转盘朝向所述顶盘的一面设有多圈环形齿槽21，所述顶盘朝向所述转盘的一面也设有多圈环形齿槽31，所述转盘的环形齿槽和顶盘的环形齿槽与行星螺纹滚子的螺纹啮合；所述行星螺纹滚子在所述转盘和所述顶盘之间滚动、并围绕所述中轴转动。
所述行星螺纹滚子的螺纹锥角α的取值范围可采用6°～8°。
所述行星螺纹滚子的螺纹齿形角β的取值范围可采用85°～95°。
所述转盘和所述顶盘之间设有行星滚子保持架50，所述行星滚子保持架以所述中轴为转轴转动，所述行星滚子保持架设有与所述行星螺纹滚子对应的行星滚子槽51，所述行星螺纹滚子设置在所述行星滚子槽中。
所述行星滚子槽设有滚子安装孔52，所述行星螺纹滚子设有滚子轴42，所述行星螺纹滚子通过所述滚子轴装在所述行星滚子保持架的滚子安装孔中，所述行星螺纹滚子的滚子轴在所述滚子安装孔中转动和轴向移动。
如图5所示，所述行星滚子槽相对于行星螺纹滚子内端侧设有滚子安装孔，所述行星螺纹滚子内端设有滚子轴。
如图6所示，所述行星滚子槽相对于行星螺纹滚子外端侧设有滚子安装孔，所述行星螺纹滚子外端设有滚子轴。
如图3和图4所示，所述行星滚子槽相对于行星螺纹滚子的两端设有滚子安装孔，所述行星螺纹滚子的两端设有滚子轴。
如图7至图11，所述转盘和/或所述顶盘设有外圈齿盘(图中22，32)和内圈齿盘(图中23，33)，所述行星螺纹滚子外端设有与所述外圈齿盘啮合的外圈齿轮43，所述行星螺纹滚子内端设有与所述内圈齿盘啮合的内圈齿轮44，所述行星螺纹滚子沿所述外圈齿盘和内圈齿盘围绕所述中轴36转动。
所述外圈齿盘的宽度K1大于所述行星螺纹滚子的外圈齿轮的宽度S1，所述内圈齿盘的宽度K2大于所述行星螺纹滚子的内圈齿轮的宽度S2，所述 行星螺纹滚子的外圈齿轮和内圈齿轮沿所述外圈齿盘和内圈齿盘向中轴方向往复移动。
所述底盘和所述转盘之间设有推力轴承60。
为了增强承载能力，所述底盘和所述转盘之间的推力轴承是推力滚子轴承。
实施例一：
如图1、图2、图3，一种行星滚动微距顶压装置，行星滚动微距顶压装置包括底盘10，转盘20和顶盘30。顶盘的中心设有中轴36，顶盘、转盘和底盘通过中心轴连接，实现同轴。
转盘设置在底盘和顶盘之间。在转盘和顶盘之间设有五个行星螺纹滚子40。
行星螺纹滚子是设有锥螺纹41的行星螺纹滚子，本实施例中，行星螺纹滚子的螺纹锥角α＝7°；行星螺纹滚子的螺纹齿形角β＝90°。行星螺纹滚子的两端设有滚子轴42。本实施例中，行星螺纹滚子的锥螺纹的小径端朝向中轴，行星螺纹滚子的锥螺纹的大径端朝向转盘的外径，行星螺纹滚子的轴线与中轴的轴线垂直相交。
转盘朝向顶盘的一面(即与行星螺纹滚子接触的一面)设有多圈环形齿槽21，所述环形齿槽是非螺旋形齿槽，每个环形齿槽都是一个完整的圆形槽。环形齿槽的齿形对应于行星螺纹滚子的螺纹，相邻两环形齿槽的间距与行星螺纹滚子螺纹的螺距相等，环形齿槽的齿形角对应于行星螺纹滚子螺纹的齿形角(为90°)，环形齿槽沿转盘径向的排列设有与行星螺纹滚子的螺纹锥角对应的倾角，即为行星螺纹滚子的螺纹锥角的一半，为3.5°。转盘的外圆上设有转动手把24。
顶盘朝向转盘的一面(即与行星螺纹滚子接触的一面)也设有多圈环形齿槽31，与转盘相类似，顶盘的环形齿槽的齿形对应于行星螺纹滚子的螺纹，相邻两环形齿槽的间距与行星螺纹滚子螺纹的螺距相等，环形齿槽的齿形角对应于行星螺纹滚子螺纹的齿形角(为90°)，环形齿槽沿转盘径向的排列设有与行星螺纹滚子的螺纹锥角对应的倾角，即为行星螺纹滚子的螺纹锥角的一半，为3.5°。
转盘的环形齿槽和顶盘的环形齿槽与行星螺纹滚子的螺纹啮合。为了与行星螺纹滚子啮合，转盘的环形齿槽的齿顶25对应于顶盘环形齿槽的齿根35。
转盘和顶盘之间设有行星滚子保持架50，行星滚子保持架与中轴同轴。行星滚子保持架设有五个与行星螺纹滚子对应的行星滚子槽51，行星滚子槽设有滚子安装孔52，与行星螺纹滚子的滚子轴相对应，滚子安装孔设置在行星滚子槽相对于行星螺纹滚子的两端，是从轴向穿过行星滚子槽、并穿透行星滚子保持架的通孔。行星螺纹滚子通过滚子轴安装在行星滚子保持架的滚子安装孔中，行星螺纹滚子的滚子轴在滚子安装孔中转动并轴向移动。
底盘和转盘之间设有推力轴承60。本实施例中，为了提高承载能力，底盘和转盘之间的推力轴承是推力滚子轴承。推力滚子轴承的滚子61设置在一个滚子保持架61中。为了结构的紧凑，底盘和转盘分别作为推力轴承的两个轴承环。
行星螺纹滚子在行星滚子保持架中围绕中轴转动。
行星滚动微距顶压装置的工作方式是，底盘的底面和顶盘的顶面分别与两个被顶压面接触，行星螺纹滚子的锥螺纹被压紧在顶盘和转盘的环形齿槽上。旋转转盘，转盘与行星螺纹滚子之间的摩擦力带的行星螺纹滚子在转盘与顶盘之间滚动，而不会摩擦滑动。行星螺纹滚子的自转使行星螺纹滚子的锥螺纹沿转盘和顶盘的环形齿槽中转动，并朝向中轴方向产生位移，行星螺纹滚子的锥螺纹推动顶盘沿轴向移动。在这个过程中，转动行程远大于顶盘的位移，使行星滚动微距顶压装置可以获得很高的调节精度，同时具有可靠的自锁功能。也具有更高的承载能力。
实施例二：
如图4，一种行星滚动微距顶压装置，本实施例是实施例一的一种结构替换。
本实施例中，行星螺纹滚子的锥螺纹的大径端朝向中轴，行星螺纹滚子的锥螺纹的小径端朝向转盘的外径，行星螺纹滚子的轴线与中轴的轴线垂直相交。
实施例三：
如图5，一种行星滚动微距顶压装置，本实施例是实施例一的一种结构简化。
本实施例中，行星螺纹滚子40的内侧端设有滚子轴42。
行星滚子保持架50设有与行星螺纹滚子对应的行星滚子槽51，行星滚子槽相对于行星螺纹滚子内端侧设有滚子安装孔52。与行星螺纹滚子的滚子轴相对应，滚子安装孔设置在行星滚子槽相对于行星螺纹滚子的内侧端，是从轴向穿过行星滚子保持架的内径和行星滚子槽的通孔。
行星螺纹滚子通过滚子轴安装在行星滚子保持架的滚子安装孔中，行星螺纹滚子的滚子轴在滚子安装孔中转动并轴向移动。
本实施例在实现行星滚子保持架功能的条件下，简化了行星滚子保持架的结构。
实施例四：
如图6，一种行星滚动微距顶压装置，本实施例是实施例一的一种结构简化。
本实施例中，行星螺纹滚子40的外侧端设有滚子轴42。
行星滚子保持架50设有与行星螺纹滚子对应的行星滚子槽51，行星滚子槽相对于行星螺纹滚子外端侧设有滚子安装孔52，与行星螺纹滚子的滚子轴相对应，滚子安装孔设置在行星滚子槽相对于行星螺纹滚子的外侧端，是从轴向穿过行星滚子保持架的外径和行星滚子槽的通孔。
行星螺纹滚子通过滚子轴安装在行星滚子保持架的滚子安装孔中，行星螺纹滚子的滚子轴在滚子安装孔中转动并轴向移动。
本实施例在实现行星滚子保持架功能的条件下，简化了行星滚子保持架的结构。
实施例五：
如图7、图8、图9，一种行星滚动微距顶压装置，本实施例是实施例一的一种结构替换。采用另一种行星螺纹滚子的安装方式。
转盘设有外圈齿盘22和内圈齿盘23，顶盘设有外圈齿盘32和内圈齿盘33，转盘的外圈齿盘对应于顶盘的外圈齿盘，转盘的内圈齿盘对应于顶盘的内圈齿盘。
行星螺纹滚子的外端设有外圈齿轮43，外圈齿轮与转盘的外圈齿盘和顶盘的外圈齿盘啮合。行星螺纹滚子的内端设有内圈齿轮44，内圈齿轮与转盘的内圈齿盘和顶盘的内圈齿盘啮合。行星螺纹滚子沿外圈齿盘和内圈齿盘滚动，围绕中轴作公转，行星螺纹滚子的轴线保持与中轴的轴线相交。
外圈齿盘的宽度K1(包括转盘的外圈齿盘和顶盘的外圈齿盘)大于行星螺纹滚子的外圈齿轮的宽度S1，内圈齿盘的宽度K2(包括转盘的内圈齿盘和顶盘的内圈齿盘)大于行星螺纹滚子的内圈齿轮的宽度S2，行星螺纹滚子的外圈齿轮可沿外圈齿盘(包括转盘的外圈齿盘和顶盘的外圈齿盘)的宽度移动，行星螺纹滚子的内圈齿轮可沿内圈齿盘(包括转盘的内圈齿盘和顶盘的内圈齿盘)的宽度移动，使行星螺纹滚子向中轴方向往复移动。
本实施例的行星滚动微距顶压装置省去了行星滚子保持架，简化了结构，可使装置结构更为紧凑。
实施例六：
如图10，一种行星滚动微距顶压装置，本实施例是实施例五的一种结构简化。
只在转盘上设置外圈齿盘和内圈齿盘也可实现实施例五的功能。
本实施例中，转盘20设有外圈齿盘22和内圈齿盘23，顶盘30设有与转盘的外圈齿盘对应的外环槽32a、与转盘的内圈齿盘对应的内环槽33a。行星螺纹滚子外端设有与转盘的外圈齿盘啮合的外圈齿轮43，行星螺纹滚子内端设有与转盘的内圈齿盘啮合的内圈齿轮44，行星螺纹滚子沿转盘的外圈齿盘和内圈齿盘围绕所述中轴36转动。
本实施例的行星滚动微距顶压装置省去了顶盘的外圈齿盘和内圈齿盘，进一步简化了结构。
实施例七：
如图11，一种行星滚动微距顶压装置，本实施例是实施例五的一种结构简化。
只在顶盘上设置外圈齿盘和内圈齿盘也可实现实施例五的功能。
本实施例中，顶盘30设有外圈齿盘32和内圈齿盘33，转盘20设有与转盘的外圈齿盘对应的外环槽22a、与转盘的内圈齿盘对应的内环槽23a。行 星螺纹滚子外端设有与顶盘的外圈齿盘啮合的外圈齿轮43，行星螺纹滚子内端设有与顶盘的内圈齿盘啮合的内圈齿轮44，行星螺纹滚子沿顶盘的外圈齿盘和内圈齿盘围绕所述中轴36转动。
本实施例的行星滚动微距顶压装置省去了转盘的外圈齿盘和内圈齿盘，进一步简化了结构。

Claims (10)

  1. 一种行星滚动微距顶压装置，包括安装在中轴上的底盘、转盘和顶盘；所述转盘设置在所述底盘和顶盘之间；在所述转盘和所述顶盘之间设有至少三个行星螺纹滚子，所述行星螺纹滚子设有锥螺纹，在所述转盘朝向所述顶盘的一面设有多圈环形齿槽，所述顶盘朝向所述转盘的一面也设有多圈环形齿槽，所述转盘的环形齿槽和顶盘的环形齿槽与行星螺纹滚子的螺纹啮合；所述行星螺纹滚子在所述转盘和所述顶盘之间滚动、并围绕所述中轴转动。
  2. 根据权利要求1所述的一种行星滚动微距顶压装置，其中，所述转盘和所述顶盘之间设有行星滚子保持架，所述行星滚子保持架以所述中轴为转轴转动，所述行星滚子保持架设有与所述行星螺纹滚子对应的行星滚子槽，所述行星螺纹滚子设置在所述行星滚子槽中。
  3. 根据权利要求2所述的一种行星滚动微距顶压装置，其中，所述行星滚子槽设有滚子安装孔，所述行星螺纹滚子设有滚子轴，所述行星螺纹滚子通过所述滚子轴装在所述行星滚子保持架的滚子安装孔中，所述行星螺纹滚子的滚子轴在所述滚子安装孔中转动和轴向移动。
  4. 根据权利要求3所述的一种行星滚动微距顶压装置，其中，所述行星滚子槽相对于行星螺纹滚子内端侧设有滚子安装孔，所述行星螺纹滚子内端设有滚子轴。
  5. 根据权利要求3所述的一种行星滚动微距顶压装置，其中，所述行星滚子槽相对于行星螺纹滚子外端侧设有滚子安装孔，所述行星螺纹滚子外端设有滚子轴。
  6. 根据权利要求3所述的一种行星滚动微距顶压装置，其中，所述行星滚子槽相对于行星螺纹滚子的两端设有滚子安装孔，所述行星螺纹滚子的两端设有滚子轴。
  7. 根据权利要求1所述的一种行星滚动微距顶压装置，其中，所述转盘和/或所述顶盘设有外圈齿盘和内圈齿盘，所述行星螺纹滚子外端设有与所述外圈齿盘啮合的外圈齿轮，所述行星螺纹滚子内端设有与所述内圈齿盘啮合的内圈齿轮，所述行星螺纹滚子沿所述外圈齿盘和内圈齿盘围绕所述中轴转 动。
  8. 根据权利要求7所述的一种行星滚动微距顶压装置，其中，所述外圈齿盘的宽度大于所述行星螺纹滚子的外圈齿轮的宽度，所述内圈齿盘的宽度大于所述行星螺纹滚子的内圈齿轮的宽度，所述行星螺纹滚子的外圈齿轮和内圈齿轮沿所述外圈齿盘和内圈齿盘向中轴方向往复移动。
  9. 根据权利要求1所述的一种行星滚动微距顶压装置，其中，所述底盘和所述转盘之间设有推力轴承。
  10. 根据权利要求1所述的一种行星滚动微距顶压装置，其中，所述底盘和所述转盘之间的推力轴承是推力滚子轴承。
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