WO2021184838A1 - 一种智能升降柱传动系统总成 - Google Patents

一种智能升降柱传动系统总成 Download PDF

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Publication number
WO2021184838A1
WO2021184838A1 PCT/CN2020/134112 CN2020134112W WO2021184838A1 WO 2021184838 A1 WO2021184838 A1 WO 2021184838A1 CN 2020134112 W CN2020134112 W CN 2020134112W WO 2021184838 A1 WO2021184838 A1 WO 2021184838A1
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WO
WIPO (PCT)
Prior art keywords
hollow screw
sleeve
lifting column
casing
screw rod
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PCT/CN2020/134112
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English (en)
French (fr)
Inventor
朱更兴
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常州市凯迪电器股份有限公司
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Publication of WO2021184838A1 publication Critical patent/WO2021184838A1/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
    • F16H25/20—Screw mechanisms
    • F16H25/2056—Telescopic screws with at least three screw members in coaxial arrangement
    • 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
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • 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
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings

Definitions

  • the invention relates to the technical field of transmission devices, in particular to an intelligent lifting column transmission system assembly.
  • Electric lifting columns are widely used in household, medical and other fields.
  • the tube bodies of existing electric lifting columns generally include an inner tube, a middle tube, an outer tube, a bottom shell, and a driving device arranged in the bottom shell, which are sequentially set from the inside to the outside.
  • Transmission assembly matched with the drive device.
  • the bottom shell has been eliminated on the market, and the driving device is built into the inner tube or the outer tube to form a built-in electric lifting column. Due to the minimum length requirements and elongation requirements of the column, the traditional built-in lifting column structure has the contradiction between the minimum installation height and the larger stroke, that is, the low installation height cannot be applied to the larger stroke.
  • the traditional built-in lifting column structure also causes the two-section and three-section electric lifting columns to use different transmission structures, and the same transmission structure cannot be used, and the versatility is poor.
  • the technical problem to be solved by the present invention is to provide an intelligent lifting column transmission system assembly, which can not only solve the contradiction between the minimum installation height and stroke of the built-in lifting column, but also make the two-section and three-section electric lift columns use the same transmission structure.
  • the technical solution adopted by the present invention to solve its technical problem is: an intelligent lifting column transmission system assembly with a telescopic sleeve, the telescopic sleeve is built with a lifting column transmission assembly, and the lifting column transmission assembly includes a sleeve that is sequentially sleeved from the inside to the outside.
  • the transmission shaft rotates synchronously with the second hollow screw rod through a synchronous rotating device.
  • the transmission shaft, the first hollow screw rod, the second hollow screw rod and the guide tube are coaxially arranged to improve transmission efficiency and reduce transmission loss.
  • the guide tube is sheathed with a round tube, and the top of the round tube is connected with the top of the second hollow screw rod through a second bearing.
  • the synchronous rotation device includes a connecting part located on the inner wall of the second hollow screw rod, a pin hole is opened in the center of the connecting part, a connecting pin protruding outward is arranged at the bottom end of the transmission shaft, and the pin hole is installed in cooperation with the connecting pin. After the connecting pin is inserted into the pin hole, the transmission shaft and the second hollow screw rod rotate synchronously.
  • the pin hole is a non-cylindrical hole.
  • a first buffer block is installed on the outer wall of the first hollow screw rod, the first buffer block is located above the first hollow screw nut, a second buffer block is installed on the outer wall of the second hollow screw rod, and the second buffer block is located on the Two hollow lead screws above the nut.
  • the telescopic sleeve is a two-section sleeve, with an upper sleeve and a lower sleeve, the top of the first hollow screw rod is fixedly installed with an end, and the top of the upper sleeve is fixedly connected to the top of the end by a connector ,
  • the bottom end of the guide pipe is fixedly connected with a fixing seat, and the bottom of the lower sleeve is fixedly connected with the fixing seat through a connecting piece; the upper sleeve is sleeved outside the lower sleeve, or the lower sleeve is sleeved outside the upper sleeve.
  • the telescopic sleeve is a three-section sleeve, which has an upper sleeve, a middle sleeve, and a lower sleeve.
  • the top end of the first hollow screw rod is fixedly installed with an end, and the top of the upper sleeve is connected to the end through a connecting piece.
  • the top is fixedly connected, the bottom end of the guide tube is fixedly connected with a fixing seat, the bottom of the lower casing is fixedly connected with the fixing seat through a connecting piece, and the top of the middle casing is connected with the top of the second hollow screw through a third bearing; the upper casing, The middle casing and the lower casing are sleeved in sequence, and the lower casing is the basic inner tube.
  • the telescopic sleeve is a three-section sleeve with an upper sleeve, a middle sleeve and a lower sleeve.
  • the top end of the first hollow screw rod is fixedly installed with an end, and the top of the upper sleeve is connected to the end through a connecting piece.
  • the top is fixedly connected, the bottom of the middle sleeve is fixedly connected with the bottom of the round pipe through a connecting piece, the bottom end of the guide pipe is fixedly connected with a fixing seat, and the bottom of the lower sleeve is fixedly connected with the fixing seat through a connecting piece; the upper sleeve and the middle sleeve
  • the lower casing and the lower casing are sleeved in sequence, and the upper casing is the basic inner tube.
  • the structure of the present invention is simple, and it has the following advantages:
  • the present invention reduces the use of bearings, has a compact structure, and realizes a smaller installation height and a larger stroke capacity;
  • the intelligent lifting column transmission system assembly only needs to fasten the two ends to realize the lifting of the first hollow screw and the second hollow screw.
  • the two-section and three-section electric lifting column can use the same lifting column transmission assembly, which improves the general performance of the lifting column transmission assembly;
  • the overall structure of the present invention is small in size and large in size, which enhances structural stability;
  • Figure 1 is a schematic diagram of the structure of the lifting column transmission assembly
  • Embodiment 2 is a schematic diagram of the structure of Embodiment 1;
  • FIG. 3 is a schematic diagram of the structure of Embodiment 2;
  • Embodiment 4 is a schematic diagram of the structure of Embodiment 3.
  • FIG. 5 is a schematic diagram of the structure of Embodiment 4.
  • FIG. 5 is a schematic diagram of the structure of Embodiment 4.
  • an upright two-section intelligent lifting column transmission system assembly has a telescopic sleeve.
  • the telescopic sleeve has a built-in lifting column transmission assembly.
  • the lifting column transmission assembly includes a transmission set in order from the inside to the outside.
  • the shaft 1 rotates synchronously with the second hollow screw rod 3 through a synchronous rotating device; an end 7 is fixedly installed at the top of the first hollow screw rod 2.
  • the end 7 is equipped with
  • the transmission shaft 1, the first hollow screw 2, the second hollow screw 3 and the guide tube 4 are arranged coaxially;
  • the synchronous rotation device includes a connecting portion 10 located on the inner wall of the second hollow screw 3, and a pin is provided in the center of the connecting portion 10
  • the bottom end of the transmission shaft 1 is provided with a connecting pin 11 protruding outward.
  • the connecting pin 11 is inserted into the pin hole and is riveted and fixedly connected with the connecting portion 10 so that the transmission shaft 1 and the second hollow screw 3 rotate synchronously.
  • the connecting pin 11 is matedly connected with the pin hole, and the pin hole is a non-cylindrical hole.
  • a fastening screw 19 is installed on the top of the transmission shaft 1, and the fastening screw 19 is fixedly connected with the coupling.
  • the shoulder of the transmission shaft 1 is limited by the first bearing 12. Under the combined action of the fastening screw 19 and the shoulder of the transmission shaft 1 , So that the transmission shaft 1 and the first hollow screw rod 2 are axially limited.
  • the guide tube 4 is sheathed with a round tube 17, the top of the round tube 17 is connected to the threaded fastening sleeve 18 through the second bearing 20, the length of the round tube 17 and the second hollow screw 3 are the same, and the second hollow screw 3 will not be driven by rotation
  • the round tube 17 rotates.
  • the outer wall of the first hollow screw rod 2 is provided with a first buffer block 8 which is located above the first hollow screw nut 5, and the outer wall of the second hollow screw rod 3 is provided with a second buffer block 9 and the second buffer block 9 Located above the second hollow screw nut 6.
  • the function of the first buffer block 8 and the second buffer block 9 is: when the intelligent lifting column transmission system assembly reaches the minimum height, the first buffer block 8 and the second buffer block 9 can buffer the impulse when the various parts are in contact, and can reduce Vibration and noise.
  • the telescopic sleeve is a two-section sleeve, with an upper sleeve 14 and a lower sleeve 16.
  • the top of the upper sleeve 16 is fixedly connected to the top of the end 7 through a connector, the bottom end of the guide tube 4 is fixedly connected with a fixing seat 13, and the lower sleeve
  • the bottom of the tube 16 is fixedly connected to the fixing seat 13 through a connecting piece; the upper sleeve 14 is sleeved outside the lower sleeve 16.
  • Both the first bearing 12 and the second bearing 20 adopt sliding bearings.
  • the end 7 is fixed on a fixed rising part
  • the fixing seat 13 is fixed on the bottom plate or a fixed external part
  • the first hollow screw rod 2 is fixedly connected to the end 7
  • the guide tube 4 is fixedly connected to the fixed seat 13, so the first hollow screw rod 2 and the guide tube 4 are both restricted from rotating.
  • the motor drives the transmission shaft 1 to rotate, and the transmission shaft 1 drives the second hollow screw 3 to rotate synchronously under the transmission of the synchronous rotation device.
  • the second hollow screw 3 is threadedly connected with the second hollow screw nut 6, the second hollow screw The hollow screw 3 rotates, so that the second hollow screw 3 moves upward relative to the guide tube 4; since the first bearing 12 is installed between the transmission shaft 1 and the first hollow screw 2, the rotation of the transmission shaft 1 will not drive the first
  • the hollow screw 2 rotates, the first hollow screw 2 is fixedly connected to the end 7, and the transmission shaft 1 is rotationally connected to the end 7.
  • the transmission shaft 1 and the first hollow screw 2 are relatively stationary in the axial direction, and the circumferential direction can be Relative rotation; the second hollow screw 3 rotates, the first hollow screw nut 5 fixed at the top of the second hollow screw 3 also rotates synchronously, the first hollow screw nut 5 moves downward relative to the first hollow screw 2, Relatively speaking, the first hollow screw rod 2 is lifted, and the first hollow screw nut 5 and the second hollow screw nut 6 are driven in two stages to realize the first hollow screw rod 2 and the second hollow screw rod 3 ascending in two stages.
  • the casing 14 and the lower casing 16 are stretched, and the ascending parts make an ascending action.
  • the transmission structure of the intelligent lifting column transmission system assembly plays a role in converting the input torque into the output stroke;
  • the motor drives the transmission shaft 1 to rotate in the reverse direction, and the upper sleeve 14 and the lower sleeve 16 shrink, and the lowering process of the intelligent lifting column transmission system assembly can be realized.
  • An inverted two-section intelligent lifting column transmission system assembly as shown in FIG. 3 is different from Embodiment 1 in that the upper casing 14 is sleeved outside the lower casing 16.
  • an inverted three-section intelligent lifting column transmission system assembly which is different from Embodiment 1, is: this inverted three-section intelligent lifting column transmission system assembly does not have a circular tube 17 and a second bearing 20, which is simplified The structure of the transmission system assembly.
  • the telescopic sleeve is a three-section sleeve, with an upper sleeve 14, a middle sleeve 15, and a lower sleeve 16.
  • the top of the upper sleeve 16 is fixedly connected to the top of the end 7 through a connector, and the bottom end of the guide tube 4 is fixedly connected
  • the fixed seat 13, the bottom of the lower sleeve 16 is fixedly connected to the fixed seat 13 through a connector, the top of the middle sleeve 15 is connected to the outer wall of the threaded fastening sleeve 18 through the third bearing 21; the upper sleeve 14, the middle sleeve 15 and the lower sleeve
  • the tube 16 is sheathed in sequence, and the lower casing 16 is the innermost casing.
  • the third bearing 21 is a sliding bearing.
  • the ascending process of this inverted three-section intelligent lifting column transmission system assembly is: the first hollow screw nut 5 and the second hollow screw nut 6 two-stage screw drive realize the first hollow screw 2 and the second hollow screw 3 two
  • the upper casing 14 and the middle casing 15 are driven to rise, and the upper casing 14, the middle casing 15 and the lower casing 16 are stretched, and the rising parts make an upward movement.
  • the intelligent lifting column transmission system assembly The transmission structure plays the role of converting input torque into output stroke.
  • an upright three-section intelligent lifting column transmission system assembly is different from Embodiment 1.
  • the telescopic sleeve is a three-section sleeve, with an upper sleeve 14, a middle sleeve 15, and a lower sleeve. 16.
  • the top of the upper sleeve 16 is fixedly connected with the top of the end 7 through a connecting piece, the bottom end of the guide tube 4 is fixedly connected with a fixing seat 13, and the bottom of the lower sleeve 16 is fixedly connected with the fixing seat 13 through a connecting piece;
  • the guide tube 4 is externally provided
  • the top of the round tube 17 is fixedly connected to the top of the threaded fastening sleeve 18, and the length of the round tube 17 is the same as the second hollow screw 3
  • the bottom of the middle sleeve 15 is fixedly connected to the bottom of the round tube 17 through a connecting piece;
  • the tube 14, the middle casing 15 and the lower casing 16 are sleeved in sequence, and the upper casing 14 is the innermost casing.
  • the ascending process of this upright three-section intelligent lifting column transmission system assembly is: the first hollow screw nut 5 and the second hollow screw nut 6 are two-stage spiral transmission to realize the first hollow screw 2 and the second hollow screw 3.
  • the two-stage ascent drives the upper casing 14 and the middle casing 15 to rise, so that the upper casing 14, the middle casing 15 and the lower casing 16 are stretched.
  • the resulting transmission structure plays a role in converting input torque into output stroke.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Transmission Devices (AREA)

Abstract

一种智能升降柱传动系统总成，具有伸缩套管，伸缩套管内置有升降柱传动组件，升降柱传动组件包括从里往外依次套设的传动轴(1)、第一空心丝杆(2)、第二空心丝杆(3)和导向管(4)，第二空心丝杆(3)顶端固定安装有第一空心丝杆螺母(5)，导向管(4)顶端固定安装有第二空心丝杆螺母(6)，第一空心丝杆螺母(5)螺纹套设在第一空心丝杆(2)外，第二空心丝杆螺母(6)螺纹套设在第二空心丝杆(3)外；传动轴(1)通过同步转动装置与第二空心丝杆(3)同步转动。该智能升降柱传动系统总成结构紧凑，减少轴承的使用，实现了较小的安装高度与较大的行程能力；整体结构只需紧固两端便可实现两级螺旋传动，且两节与三节电动升降立柱使用同一升降柱传动组件；整体结构上小下大，增强了结构稳定性。

Description

一种智能升降柱传动系统总成 技术领域
本发明涉及传递装置技术领域，尤其是一种智能升降柱传动系统总成。
背景技术
电动升降立柱被广泛应用于家居、医疗等领域，现有的电动升降立柱的管体一般包括由内向外依次套装的内管、中管、外管及底壳、设置于底壳中的驱动装置、与驱动装置配套的传动总成。为了优化外观及提高立柱整体刚性，市场上出现了取消底壳，将驱动装置内置到内管或外管中形成内置式电动升降立柱。由于立柱最短长度要求及伸长量的要求，传统的内置式升降立柱结构具有最低安装高度与较大行程的矛盾，即低安装高度不能适用于较大的行程。另外，传统的内置式升降立柱结构也导致两节与三节电动升降立柱需要使用不同的传动结构，不能使用同一种传动结构，通用性差。
发明内容
本发明要解决的技术问题是：提供一种智能升降柱传动系统总成，不仅可以解决内置式升降立柱最低安装高度与行程的矛盾，也可以使得两节与三节电动升降立柱使用同一传动结构。
本发明解决其技术问题所采用的技术方案是：一种智能升降柱传动系统总成，具有伸缩套管，伸缩套管内置有升降柱传动组件，升降柱传动组件包括从里往外依次套设的传动轴、第一空心丝杆、第二空心丝杆和导向管，第二空心丝杆顶端固定安装有第一空心丝杆螺母，导向管顶端固定安装有第二空心丝杆螺母，传动轴和第一空心丝杆之间安装有第一轴承；所述第一空心丝杆螺母螺 纹套设在第一空心丝杆外，第二空心丝杆螺母螺纹套设在第二空心丝杆外；所述传动轴通过同步转动装置与第二空心丝杆同步转动。
进一步地，所述传动轴、第一空心丝杆、第二空心丝杆和导向管为同轴设置，提高传动效率，降低传动损耗。
进一步地，所述导向管外套设有圆管，圆管顶部通过第二轴承与第二空心丝杆顶部连接。
进一步地，所述同步转动装置包括位于第二空心丝杆内壁的连接部，连接部中心开设有销孔，传动轴底端设有向外凸起的连接销，销孔与连接销配合安装，连接销插入销孔后使得传动轴和第二空心丝杆同步转动。销孔为非圆柱孔。
进一步地，所述第一空心丝杆外壁安装有第一缓冲块，第一缓冲块位于第一空心丝杆螺母上方，第二空心丝杆外壁安装有第二缓冲块，第二缓冲块位于第二空心丝杆螺母上方。
进一步地，所述伸缩套管为二节套管，具有上套管和下套管，所述第一空心丝杆顶端固定安装有端部，上套管顶部通过连接件与端部顶部固定连接，导向管底端固定连接有固定座，下套管底部通过连接件与固定座固定连接；所述上套管套设在下套管外，或者下套管套设在上套管外。
进一步地，所述伸缩套管为三节套管，具有上套管、中套管和下套管，所述第一空心丝杆顶端固定安装有端部，上套管顶部通过连接件与端部顶部固定连接，导向管底端固定连接有固定座，下套管底部通过连接件与固定座固定连接，中套管顶部通过第三轴承与第二空心丝杆顶部连接；所述上套管、中套管和下套管为依次套设且下套管为基础内管。
进一步地，所述伸缩套管为三节套管，具有上套管、中套管和下套管，所述第一空心丝杆顶端固定安装有端部，上套管顶部通过连接件与端部顶部固定 连接，中套管底部通过连接件与圆管底部固定连接，导向管底端固定连接有固定座，下套管底部通过连接件与固定座固定连接；所述上套管、中套管和下套管为依次套设且上套管为基础内管。
本发明的有益效果是：本发明结构简单，具有以下优点：
(1)、与传统的升降立柱传动结构相比，本发明减少了轴承的使用，结构紧凑，实现了较小的安装高度与较大的行程能力；
(2)、第一空心丝杆螺母和第二空心丝杆螺母两级螺旋传动，智能升降柱传动系统总成只需紧固两端便可实现第一空心丝杆和第二空心丝杆抬升，而且两节与三节电动升降立柱可以使用同一升降柱传动组件，提高了升降柱传动组件的通用性能；
(3)、由于整体结构紧凑且减少轴承、轴承座的使用，降低了生产成本；
(4)、本发明中整体结构上小下大，增强了结构稳定性；
(5)、传动轴轴向受力不受升降负载影响，增加了整体的承重能力。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是升降柱传动组件的结构示意图；
图2是实施例1的结构示意图；
图3是实施例2的结构示意图；
图4是实施例3的结构示意图；
图5是实施例4的结构示意图。
图中：1.传动轴，2.第一空心丝杆，3.第二空心丝杆，4.导向管，5.第一空心丝杆螺母，6.第二空心丝杆螺母，7.端部，8.第一缓冲块，9.第二缓冲块， 10.连接部，11.连接销，12.第一轴承，13.固定座，14.上套管，15.中套管，16.下套管，17.圆管，18.螺纹紧固套，19.紧固螺钉，20.第二轴承，21.第三轴承。
具体实施方式
现在结合附图和优选实施例对本发明作进一步详细的说明。这些附图均为简化的示意图，仅以示意方式说明本发明的基本结构，因此其仅显示与本发明有关的构成。
实施例1
如图1-2所示的一种正置两节智能升降柱传动系统总成，具有伸缩套管，伸缩套管内置有升降柱传动组件，升降柱传动组件包括从里往外依次套设的传动轴1、第一空心丝杆2、第二空心丝杆3和导向管4，第二空心丝杆3顶部套设有螺纹紧固套18，螺纹紧固套18将第一空心丝杆螺母5固定在第二空心丝杆3顶端，螺纹紧固套18限制第一空心丝杆螺母5轴向运动；导向管4顶端固定安装有第二空心丝杆螺母6，传动轴1和第一空心丝杆2之间安装有第一轴承12；第一空心丝杆螺母5螺纹套设在第一空心丝杆2外，第二空心丝杆螺母6螺纹套设在第二空心丝杆3外；传动轴1通过同步转动装置与第二空心丝杆3同步转动；第一空心丝杆2顶端固定安装有端部7。端部7安装有驱动传动轴1转动的电机，电机输出端连接有减速箱，减速箱输出端通过联轴器与传动轴1连接。
传动轴1、第一空心丝杆2、第二空心丝杆3和导向管4为同轴设置；同步转动装置包括位于第二空心丝杆3内壁的连接部10，连接部10中心开设有销孔，传动轴1底端设有向外凸起的连接销11，连接销11插入销孔后与连接部10铆 接固定连接，使得传动轴1和第二空心丝杆3同步转动。连接销11与销孔配合连接且销孔为非圆柱孔。
传动轴1顶端安装有紧固螺钉19，紧固螺钉19与联轴器固定连接，传动轴1轴肩被第一轴承12限位，在紧固螺钉19和传动轴1轴肩的共同作用下，使的传动轴1与第一空心丝杆2的轴向限位。
导向管4外套设有圆管17，圆管17顶部通过第二轴承20与螺纹紧固套18连接，圆管17与第二空心丝杆3长度一致，第二空心丝杆3转动不会带动圆管17旋转。
第一空心丝杆2外壁安装有第一缓冲块8，第一缓冲块8位于第一空心丝杆螺母5上方，第二空心丝杆3外壁安装有第二缓冲块9，第二缓冲块9位于第二空心丝杆螺母6上方。第一缓冲块8和第二缓冲块9的作用是：当智能升降柱传动系统总成达到最小高度时，第一缓冲块8和第二缓冲块9可以缓冲各个零件接触时的冲力，可以降低振动和噪音。
伸缩套管为二节套管，具有上套管14和下套管16，上套管16顶部通过连接件与端部7顶部固定连接，导向管4底端固定连接有固定座13，下套管16底部通过连接件与固定座13固定连接；上套管14套设在下套管16外。
第一轴承12和第二轴承20均采用滑动轴承。
这种智能升降柱传动系统总成，端部7固定在固定不动的上升部件上，固定座13固定在底板或固定不动的外部部件上，第一空心丝杆2与端部7固定连接，导向管4与固定座13固定连接，因此第一空心丝杆2和导向管4均被限制旋转，这种智能升降柱传动系统总成的工作过程为：
上升过程，电机驱动传动轴1转动，传动轴1在同步转动装置的传动下带动第二空心丝杆3同步转动，由于第二空心丝杆3与第二空心丝杆螺母6螺纹 连接，第二空心丝杆3转动，使得第二空心丝杆3相对于导向管4上升运动；由于传动轴1和第一空心丝杆2之间安装有第一轴承12，传动轴1转动不会带动第一空心丝杆2旋转，第一空心丝杆2与端部7固定连接，传动轴1与端部7转动连接，因此，传动轴1与第一空心丝杆2轴向上相对静止，圆周方向可相对转动；第二空心丝杆3转动，第二空心丝杆3顶端固定的第一空心丝杆螺母5也同步转动，第一空心丝杆螺母5相对于第一空心丝杆2向下运动，相对来说第一空心丝杆2被抬升，第一空心丝杆螺母5和第二空心丝杆螺母6两级螺旋传动实现第一空心丝杆2和第二空心丝杆3两级上升，上套管14和下套管16拉伸，上升部件做出上升动作，同时这种智能升降柱传动系统总成的传动结构起到将输入扭矩转化为输出行程的作用；
下降过程，电机驱动传动轴1反向转动，上套管14和下套管16收缩，即可实现智能升降柱传动系统总成的下降过程。
实施例2
如图3所示的一种倒置两节智能升降柱传动系统总成，与实施例1不同之处为：上套管14套设在下套管16外。
实施例3
如图4所示的一种倒置三节智能升降柱传动系统总成，与实施例1不同之处为：这种倒置三节智能升降柱传动系统总成没有设置圆管17和第二轴承20，简化了传动系统总成的结构。
另外，伸缩套管为三节套管，具有上套管14、中套管15和下套管16，上套管16顶部通过连接件与端部7顶部固定连接，导向管4底端固定连接有固定座13，下套管16底部通过连接件与固定座13固定连接，中套管15顶部通过第三轴承21与螺纹紧固套18外壁连接；上套管14、中套管15和下套管16为依 次套设，下套管16是最里面的套管。第三轴承21为滑动轴承。
这种倒置三节智能升降柱传动系统总成的上升过程为：第一空心丝杆螺母5和第二空心丝杆螺母6两级螺旋传动实现第一空心丝杆2和第二空心丝杆3两级上升，带动上套管14和中套管15上升，使得上套管14、中套管15和下套管16拉伸，上升部件做出上升动作，同时这种智能升降柱传动系统总成的传动结构起到将输入扭矩转化为输出行程的作用。
实施例4
如图5所示的一种正置三节智能升降柱传动系统总成，与实施例1不同之处为：伸缩套管为三节套管，具有上套管14、中套管15和下套管16，上套管16顶部通过连接件与端部7顶部固定连接，导向管4底端固定连接有固定座13，下套管16底部通过连接件与固定座13固定连接；导向管4外套设有圆管17，圆管17顶部与螺纹紧固套18顶部固定连接，圆管17与第二空心丝杆3长度一致；中套管15底部通过连接件与圆管17底部固定连接；上套管14、中套管15和下套管16为依次套设且上套管14是最里面的套管。
这种正置三节智能升降柱传动系统总成的上升过程为：第一空心丝杆螺母5和第二空心丝杆螺母6两级螺旋传动实现第一空心丝杆2和第二空心丝杆3两级上升，带动上套管14和中套管15上升，使得上套管14、中套管15和下套管16拉伸，上升部件做出上升动作，同时这种智能升降柱传动系统总成的传动结构起到将输入扭矩转化为输出行程的作用。
以上说明书中描述的只是本发明的具体实施方式，各种举例说明不对本发明的实质内容构成限制，所属技术领域的普通技术人员在阅读了说明书后可以对以前所述的具体实施方式做修改或变形，而不背离发明的实质和范围。

Claims (8)

  1. 一种智能升降柱传动系统总成，其特征在于：具有伸缩套管，伸缩套管内置有升降柱传动组件，升降柱传动组件包括从里往外依次套设的传动轴(1)、第一空心丝杆(2)、第二空心丝杆(3)和导向管(4)，第二空心丝杆(3)顶端固定安装有第一空心丝杆螺母(5)，导向管(4)顶端固定安装有第二空心丝杆螺母(6)，传动轴(1)和第一空心丝杆(2)之间安装有第一轴承(12)；所述第一空心丝杆螺母(5)螺纹套设在第一空心丝杆(2)外，第二空心丝杆螺母(6)螺纹套设在第二空心丝杆(3)外；所述传动轴(1)通过同步转动装置与第二空心丝杆(3)同步转动。
  2. 如权利要求1所述的智能升降柱传动系统总成，其特征在于：所述传动轴(1)、第一空心丝杆(2)、第二空心丝杆(3)和导向管(4)为同轴设置。
  3. 如权利要求1所述的智能升降柱传动系统总成，其特征在于：所述导向管(4)外套设有圆管(17)，圆管(17)顶部通过第二轴承(20)与第二空心丝杆(3)顶部连接。
  4. 如权利要求1所述的智能升降柱传动系统总成，其特征在于：所述同步转动装置包括位于第二空心丝杆(3)内壁的连接部(10)，连接部(10)中心开设有销孔，传动轴(1)底端设有向外凸起的连接销(11)，销孔与连接销(11)配合安装，连接销(11)插入销孔后使得传动轴(1)和第二空心丝杆(3)同步转动。
  5. 如权利要求1所述的智能升降柱传动系统总成，其特征在于：所述第一空心丝杆(2)外壁安装有第一缓冲块(8)，第一缓冲块(8)位于第一空心丝杆螺母(5)上方，第二空心丝杆(3)外壁安装有第二缓冲块(9)，第二缓冲块(9)位于第二空心丝杆螺母(6)上方。
  6. 如权利要求3所述的智能升降柱传动系统总成，其特征在于：所述伸缩 套管为二节套管，具有上套管(14)和下套管(16)，所述第一空心丝杆(2)顶端固定安装有端部(7)，上套管(16)顶部通过连接件与端部(7)顶部固定连接，导向管(4)底端固定连接有固定座(13)，下套管(16)底部通过连接件与固定座(13)固定连接；所述上套管(14)套设在下套管(16)外，或者下套管(16)套设在上套管(14)外。
  7. 如权利要求1所述的智能升降柱传动系统总成，其特征在于：所述伸缩套管为三节套管，具有上套管(14)、中套管(15)和下套管(16)，所述第一空心丝杆(2)顶端固定安装有端部(7)，上套管(16)顶部通过连接件与端部(7)顶部固定连接，导向管(4)底端固定连接有固定座(13)，下套管(16)底部通过连接件与固定座(13)固定连接，中套管(15)顶部通过第三轴承(21)与第二空心丝杆(3)顶部连接；所述上套管(14)、中套管(15)和下套管(16)为依次套设且下套管(16)为基础内管。
  8. 如权利要求3所述的智能升降柱传动系统总成，其特征在于：所述伸缩套管为三节套管，具有上套管(14)、中套管(15)和下套管(16)，所述第一空心丝杆(2)顶端固定安装有端部(7)，上套管(16)顶部通过连接件与端部(7)顶部固定连接，中套管(15)底部通过连接件与圆管(17)底部固定连接，导向管(4)底端固定连接有固定座(13)，下套管(16)底部通过连接件与固定座(13)固定连接；所述上套管(14)、中套管(15)和下套管(16)为依次套设且上套管(14)为基础内管。
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