CN216638778U - Synchronous telescopic lifting mechanism - Google Patents
Synchronous telescopic lifting mechanism Download PDFInfo
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- CN216638778U CN216638778U CN202220193047.4U CN202220193047U CN216638778U CN 216638778 U CN216638778 U CN 216638778U CN 202220193047 U CN202220193047 U CN 202220193047U CN 216638778 U CN216638778 U CN 216638778U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a synchronous telescopic lifting mechanism which comprises a bottom flange, a primary shell, a secondary shell and a tertiary shell, wherein the bottom flange is arranged on the bottom of the primary shell; the secondary shell body is lifted under the action of the primary transmission mechanism; the primary transmission mechanism comprises a ball screw and a screw nut, the ball screw is rotatably arranged on the bottom flange, the ball screw rotates under the action of the power mechanism, and the screw nut is connected with the base of the secondary shell; the secondary shell drives the tertiary shell to synchronously lift through a secondary transmission mechanism; the secondary transmission mechanism comprises a secondary chain wheel supporting column, a secondary chain wheel arranged on the secondary chain wheel supporting column and a secondary chain wound on the secondary chain wheel. The utility model has compact and stable structure and strong rigidity, can realize large-load and high-stroke lifting, and has higher reliability aiming at the load with the changing gravity center such as a robot, thereby greatly reducing the file access failure rate of the robot, having low machining requirement and further reducing the manufacturing cost.
Description
Technical Field
The utility model relates to a synchronous telescopic lifting mechanism, and belongs to the technical field of lifting.
Background
For a long time, the archive data of China is mainly solid archives, the archive management comprises the work of putting archives on and off, reversing, checking, borrowing and counting, archive management personnel also need to carry out conventional temperature and humidity inspection, archive storehouse inspection, opening and adjusting of archive storehouse air conditioners, dehumidifiers and the like, nursing of file cabinets, placement and replacement of mildewproof agents and mothproof agents and the like every day, the workload of archive management is large, the work is very tedious, a large amount of manpower is consumed, the manual archive management is not only low in efficiency, but also errors are easy to occur.
The robot is used for managing the warehouse files in the prior art, so that labor is saved, the robot achieves an automatic navigation function through indoor positioning and path planning, and the operation of file access, checking and the like is performed through the manipulator. However, the prior art has the disadvantages of using a robot to manage files: archives access robot generally can carry on elevating system and deposit the archives box of checking the filing cabinet top layer, and elevating system plays to often can produce great side offset after the higher height, and the follow-up accuracy of snatching of direct influence robot influences the function and experiences.
The existing synchronous lifting mechanism mostly adopts a multi-stage ball screw form to realize a lifting function, and particularly, the tail end of a primary ball screw is provided with a spline, a secondary ball screw is a hollow spline groove ball screw, the primary ball screw is nested in a secondary ball screw, the primary ball screw rotates to drive the secondary ball screw to rotate, the screw rotates to drive a screw nut to lift, the primary screw nut is fixed with the secondary ball screw through a base, and the secondary ball screw is fixed with the base through a bearing to ensure the rotation; by analogy, multi-stage synchronous lifting is realized, but a certain gap is reserved between a first-stage lead screw spline and a second-stage lead screw spline groove to ensure the lifting smoothness of the second-stage lead screw, so that the multi-stage ball screw is poor in integral rigidity and is often greatly deformed when lifted to a larger height; in addition, the clearance is required to be as small as possible while the lifting smoothness is ensured, so that the processing requirement of the multi-stage ball screw is extremely high, and the manufacturing cost is very high.
In summary, after the existing multi-stage lifting mechanism is lifted to a certain height, a large lateral deviation occurs, the rigidity of the equipment is poor, the tolerance of the equipment is exceeded, and subsequent grabbing actions of a robot and the like on the lifting mechanism fail, so that the user experience is affected. The existing multistage lifting transmission mechanism is mostly a multistage ball screw, so that the smoothness of transmission is ensured, a certain gap is required to be reserved between each stage, the integral rigidity is poor, and after the lifting is carried out to a large stroke, the rigidity is the worst, and sometimes even the clamping stagnation phenomenon occurs; in addition, the processing requirement of the multi-stage ball screw is high, and the cost is high.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the synchronous telescopic lifting mechanism which has the advantages of stable structure, safe and reliable telescopic lifting, good lifting stability, low machining requirement and low manufacturing cost.
The technical scheme for solving the technical problems is as follows: a synchronous telescopic lifting mechanism comprises a bottom flange, a primary shell arranged on the bottom flange, a synchronous telescopic secondary shell and a synchronous telescopic tertiary shell which are sequentially sleeved in the primary shell, wherein the secondary shell moves up and down under the action of a primary transmission mechanism;
the primary transmission mechanism comprises a ball screw and a screw nut, the ball screw is rotatably arranged on the bottom flange, the ball screw rotates under the action of the power mechanism, and the screw nut is connected with the base of the secondary shell;
the secondary shell drives the tertiary shell to synchronously lift through a secondary transmission mechanism;
the secondary transmission mechanism comprises two secondary chain wheels and a secondary chain wound on the secondary chain wheels, a secondary chain wheel supporting column is arranged on a base of the secondary shell, the two secondary chain wheels are arranged on the upper portion and the lower portion of the secondary chain wheel supporting column respectively, a secondary chain fixing column is connected to one side of the secondary chain, the lower end of the secondary chain fixing column penetrates through the base and the bottom flange of the secondary shell, and the other side of the secondary chain is connected with the tertiary shell or the base of the tertiary shell through a connecting column.
The utility model has the beneficial effects that: the second-stage shell moves upwards under the action of a ball screw, the second-stage chain wheel rises along with the upward movement of the second-stage shell, the upper second-stage chain wheel plays a main supporting role, the lower chain wheel plays an auxiliary role, the upper end of a second-stage chain fixing column is connected with an upper chain link of a straight line section on one side of the second-stage chain, the lower end of the second-stage chain fixing column penetrates through a fixing column through hole in a base of the second-stage shell to be connected with a bottom flange, when only the first-stage, second-stage and third-stage shells exist, the third-stage shell is connected with a lower chain link of a straight line section on the other side of the second-stage chain, the shell is arranged in the third-stage shell, the base of the third-stage shell is required to be connected with a lower chain link of a straight line section on the other side of the second-stage chain through a connecting column, so that the third-stage shell can be driven to synchronously rise along with the upper second-stage shell, when the ball screw rotates reversely, the second-stage shell moves downwards along with the second-stage chain wheel, the lower second-stage chain wheel plays a main supporting role, and the upper chain wheel plays an auxiliary role, the second grade chain drives tertiary casing and descends, can realize the synchronous lift of second grade and tertiary casing, simultaneously greatly reduced processing requirement, manufacturability is higher, and the cost is lower. The power mechanism drives the first-stage transmission mechanism, and the first-stage transmission mechanism drives the second-stage transmission mechanism, so that synchronous lifting of the second-stage shell and the third-stage shell is realized. In a word, the synchronous lifting transmission mechanism has the advantages of compact and stable structure, strong rigidity, capability of realizing large-load and high-stroke lifting, higher reliability for loads with changing centers of gravity such as robots and the like, greatly reduced access failure rate of the robot files, low machining requirement and further reduced manufacturing cost.
On the basis of the technical scheme, the utility model can be further improved as follows.
The three-stage shell is connected with the four-stage shell through a three-stage transmission mechanism, and the two-stage transmission mechanism and the three-stage transmission mechanism are respectively arranged in the four-stage shell;
tertiary drive mechanism includes two tertiary sprockets and encircles the tertiary chain on tertiary sprocket, be equipped with tertiary sprocket support column on the base of tertiary casing, two tertiary sprocket sets up respectively the upper portion and the lower part of tertiary sprocket support column, one side of tertiary chain is connected with the cavity support column, the lower extreme of cavity support column passes the base of tertiary casing with the base of secondary casing is connected, the opposite side of tertiary chain with the level four casing is connected.
The beneficial effect of adopting the further proposal is that a four-stage shell is arranged in the three-stage shell, the lower part of the straight line section at the other side of the second-stage chain is connected with the base of the three-stage shell through a connecting column, thereby avoiding the direct connection with the three-stage shell from influencing the installation position of the four-stage shell, the second-stage shell moves upwards under the action of the ball screw, along with the upward movement of the second-stage shell, the second-stage chain wheel ascends, the upper chain link of the straight line section at one side of the second-stage chain is connected with a bottom flange through a fixing column of the second-stage chain, the lower chain link of the straight line section at the other side of the second-stage chain is connected with the base of the three-stage shell through the connecting column, so as to drive the four-stage shell to ascend, the ball screw rotates reversely, the second-stage shell moves downwards, the second-stage chain wheel descends along with the second-stage chain wheel, the second-stage chain wheel at the lower part plays a main supporting role, the second-stage chain wheel at the upper part plays an auxiliary role, due to the support of the second-stage chain fixing column at one side, the second-stage chain rotates to drive the third-stage shell connected with the chain link on the straight line section at the other side to move downwards, the third-stage shell moves downwards, the third-stage chain wheel moves downwards along with the third-stage chain wheel, the third-stage chain wheel at the lower part plays a main supporting role, the third-stage chain wheel at the upper part plays an auxiliary role, in addition, the support of the hollow supporting column at one side of the third-stage chain, the third-stage chain acts to drive the fourth-stage shell connected with the chain link on the straight line section at the other side of the third-stage chain to move downwards, the multi-stage synchronous lifting can be realized, the second-stage shell lifts, the third-stage shell has a relative distance with the second-stage shell, the upper chain wheel is fixed with the base of the second-stage shell through the hollow supporting column, the four-stage shell is driven to lift. And a support column through hole for the hollow support column to pass through is formed in the base of the third-stage shell. The four-stage shell further increases the telescopic lifting height of the synchronous telescopic lifting mechanism, and can realize the lifting of a large stroke, so that the mechanism is more widely applied.
Furthermore, a top flange is arranged on the four-stage shell.
Adopt above-mentioned further scheme's beneficial effect be convenient for be connected with other structures through the top flange for this synchronous elevating system and other equipment cooperation operations.
Further, the hollow support column is sleeved on the outer side of the ball screw.
The beneficial effect who adopts above-mentioned further scheme is that, the support column adopts the cavity design on the one hand to reserve installation space for ball for whole elevating system is compacter reasonable, and on the other hand makes the connection between tertiary chain and the base of second grade casing convenient and fast more through the cavity support column.
Furthermore, a support column guide mechanism is arranged between the hollow support column and the three-level chain wheel support column.
The beneficial effect who adopts above-mentioned further scheme is that, guiding mechanism's design makes tertiary casing can be more reliable and more stable at the lift in-process.
Furthermore, support column guiding mechanism includes support column linear guide and the support column slider with support column linear guide looks adaptation, support column linear guide sets up on tertiary sprocket support column or the hollow support column, the support column slider sets up on hollow support column or tertiary sprocket support column.
The beneficial effect of adopting above-mentioned further scheme is that, transmission mechanisms at all levels are through linear guide intercorrelation, and the whole rigidity is higher, and equipment stability is better. The support column linear guide rail can guide and limit the lifting action of the three-level chain wheel support column, and the lifting stability of the synchronous telescopic lifting mechanism is further improved.
Further, tertiary sprocket support column with be equipped with casing guiding mechanism between the level four casing, casing guiding mechanism include casing linear guide and with the casing slider of casing linear guide looks adaptation, casing linear guide sets up on tertiary sprocket support column or the level four casing, the casing slider sets up on level four casing or the tertiary sprocket support column.
The beneficial effects of adopting above-mentioned further scheme are that, the lift process of casing guiding mechanism makes the level four casing more steady reliable, and it is spacing to further lead through linear guide to the lift action of level four casing, makes through linear guide between level four casing and the tertiary sprocket support column correlation each other, and whole rigidity is higher, and equipment stability is better.
Further, be equipped with the support column fixed block on the cavity support column, be connected with the chain fixed block on the support column fixed block, the chain fixed block with the chain link on the straightway of tertiary chain one side is connected, be connected with the casing fixed block on the level four casing, the casing fixed block with the chain link on the straightway of tertiary chain opposite side is connected.
The beneficial effects of adopting above-mentioned further scheme are that, the fixed block realizes being connected of chain and cavity support column and tertiary chain and level four casing, and it is more convenient to install, has guaranteed the sharp transmission state of chain, avoids the transmission of support column or level four casing's connection interference chain.
Furthermore, a fixing column fixing block connected with a fixing column of the secondary chain is arranged on an upper chain link of a straight line section on one side of the secondary chain, and a connecting column fixing block connected with a connecting column is arranged on a lower chain link of a straight line section on the other side of the secondary chain.
The beneficial effects of adopting above-mentioned further scheme are that for the second grade chain is convenient and fast more with being connected of second grade chain fixed column and connecting column, does not influence the vertical transmission effect of chain straightway simultaneously, not only is connected conveniently between the base of chain and bottom flange, tertiary casing, satisfies the transmission requirement of second grade chain moreover.
Furthermore, the power mechanism comprises a servo motor, a speed reducer, a driving synchronizing wheel, a driven synchronizing wheel and a synchronizing belt surrounding the driving synchronizing wheel and the driven synchronizing wheel, the driving synchronizing wheel is connected with the output end of the speed reducer, and the driven synchronizing wheel is arranged at the lower part of the ball screw.
The beneficial effect who adopts above-mentioned further scheme is that servo motor rotates, gives the initiative synchronizing wheel through the speed reducer with power transmission, and the initiative synchronizing wheel passes through the hold-in range and drives driven synchronizing wheel and rotate, and ball rotates, and lead screw nut moves along ball axial direction to realize the lift action of second grade casing.
Drawings
FIG. 1 is a schematic structural diagram of example 2 of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic structural diagram of the three-stage transmission mechanism of the present invention;
FIG. 5 is a schematic structural view of the supporting post fixing block in FIG. 4 connected with the hollow supporting post through the top block;
FIG. 6 is a schematic structural view of a secondary chain fixing post according to the present invention;
FIG. 7 is a schematic structural view of the supporting post fixing block in FIG. 6 connected with the hollow supporting post through the top block;
FIG. 8 is a schematic structural view of the two-stage transmission mechanism of the present invention;
FIG. 9 is a structural schematic view of the secondary sprocket of the present invention in a lowered extreme position;
FIG. 10 is a structural schematic view of the secondary sprocket of the present invention in a state of being raised to the extreme position;
FIG. 11 is a structural view illustrating a state where the tertiary sprocket of the present invention is lowered to the extreme position;
FIG. 12 is a structural view illustrating a state where the tertiary sprocket of the present invention is raised to the extreme positions;
in the figure, 1, a bottom flange; 2. a primary housing; 3. a secondary shell; 4. a base of the secondary housing; 5. a tertiary shell; 6. a base of the tertiary shell; 7. a quaternary shell; 8. a top flange; 9. a servo motor; 10. a speed reducer; 11. a driving synchronizing wheel; 12. a driven synchronizing wheel; 13. a synchronous belt; 14. a ball screw; 15. a lead screw nut; 16. a secondary sprocket; 17. a secondary chain; 18. a secondary sprocket support post; 19. a secondary chain fixing column; 20. connecting columns; 21. a tertiary sprocket; 22. a third-stage chain; 23. a tertiary sprocket support post; 24. a hollow support column; 25. a chain fixing block; 26. a supporting column fixing block; 27. a support pillar linear guide rail; 28. a housing linear guide; 29. and a shell fixing block.
Detailed Description
The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.
the primary transmission mechanism comprises a ball screw and a screw nut, the ball screw is rotatably arranged on the bottom flange, the ball screw rotates under the action of the power mechanism, and the screw nut is connected with the base of the secondary shell;
the secondary shell drives the tertiary shell to synchronously lift through a secondary transmission mechanism;
the secondary transmission mechanism comprises two secondary chain wheels and a secondary chain wound on the secondary chain wheels, a secondary chain wheel supporting column is arranged on a base of the secondary shell, the two secondary chain wheels are arranged on the upper portion and the lower portion of the secondary chain wheel supporting column respectively, an upper chain link of a straight line section on one side of the secondary chain is connected with a secondary chain fixing column, the lower end of the secondary chain fixing column penetrates through the base of the secondary shell and is connected with a bottom flange, and a lower chain link of a straight line section on the other side of the secondary chain is connected with the tertiary shell through a fixing block.
the primary transmission mechanism comprises a ball screw 14 and a screw nut 15, the ball screw 14 is rotatably arranged on the bottom flange 1, the ball screw 14 rotates under the action of a power mechanism, and the screw nut 15 is connected with the base 4 of the secondary shell;
the secondary shell 3 drives the tertiary shell 5 to synchronously lift through a secondary transmission mechanism;
the secondary transmission mechanism comprises two secondary chain wheels 16 and a secondary chain 17 surrounding the secondary chain wheels, a secondary chain wheel supporting column 18 is arranged on the base 4 of the secondary shell, the two secondary chain wheels are arranged on the upper portion and the lower portion of the secondary chain wheel supporting column 18 respectively, an upper chain link of a straight line section on one side of the secondary chain is connected with a secondary chain fixing column 19, the lower end of the secondary chain fixing column 19 penetrates through the base 4 of the secondary shell and is connected with a bottom flange 1, and a lower chain link of a straight line section on the other side of the secondary chain is connected with the base 6 of the tertiary shell through a connecting column 20.
The three-stage shell 5 is connected with the four-stage shell 7 through a three-stage transmission mechanism, and the two-stage transmission mechanism and the three-stage transmission mechanism are respectively arranged in the four-stage shell 7;
tertiary drive mechanism includes two tertiary sprockets 21 and encircles tertiary chain 22 on tertiary sprocket, be equipped with tertiary sprocket support column 23 on the base 6 of tertiary casing, two tertiary sprocket 21 sets up respectively the upper portion and the lower part of tertiary sprocket support column 23, one side of tertiary chain 22 is connected with cavity support column 24, the lower extreme of cavity support column 24 passes the base 6 of tertiary casing with the base 4 of secondary casing is connected, the opposite side of tertiary chain 22 with level four casing 7 is connected. The three-stage shell is internally provided with a four-stage shell 7, the lower part of the straight line section at the other side of the two-stage chain is connected with a base 6 of the three-stage shell through a connecting column 20, the situation that the direct connection with the three-stage shell affects the installation position of the four-stage shell 7 is avoided, the two-stage shell moves upwards under the action of a ball screw 14, a two-stage chain wheel ascends along with the upward movement of the two-stage shell, the upper chain link of the straight line section at one side of the two-stage chain is connected with a bottom flange 1 through a two-stage chain fixing column 19, the lower chain link of the straight line section at the other side of the two-stage chain is connected with the base 6 of the three-stage shell through the connecting column 20, so that the three-stage shell is driven to synchronously ascend, the three-stage shell is driven, the three-stage chain wheel ascends, the upper chain link of the straight line section at one side of the three-stage chain 22 is connected with the base 4 of the two-stage shell through a hollow supporting column 24, the lower chain link of the straight line section at the other side is connected with the four-stage shell 7, so as to drive the four-stage shell 7 to ascend, 14 antiport of ball, the second grade casing moves down, the second grade sprocket descends thereupon, the second grade sprocket of lower part plays main supporting role, the second grade sprocket of upper portion plays the additional work, because the support of one side second grade chain fixed column 19, so the second grade chain rotates the tertiary casing that drives the chain link connection on with the opposite side straightway and moves down, the tertiary casing moves down, the tertiary sprocket moves down thereupon, the tertiary sprocket of lower part plays main supporting role, the tertiary sprocket of upper portion plays the additional work, and there is the support of hollow support post 24 tertiary chain 22 one side, tertiary chain 22 action, drive the level four casing 7 of chain link connection on the third grade chain 22 opposite side straightway and move down, can realize multistage synchronous lift, be equipped with the support post through-hole that is used for hollow support post 24 to pass on the base 6 of tertiary casing. The four-stage shell 7 is further provided with the telescopic lifting height of the synchronous telescopic lifting mechanism, and the lifting with a large stroke can be realized, so that the mechanism is more widely applied.
And a top flange 8 is arranged on the four-stage shell 7. The top flange 8 is convenient to be connected with other structures, so that the synchronous lifting mechanism can be matched with other equipment for operation.
The hollow support column 24 is sleeved outside the ball screw 14. The support column adopts the cavity design on the one hand to reserve installation space for ball 14 for whole elevating system is compacter reasonable, and on the other hand makes the connection between tertiary chain 22 and the base 4 of second grade casing more convenient and fast through hollow support column 24.
And a support column guide mechanism is arranged between the hollow support column 24 and the third-stage chain wheel support column 23. The design of the guide mechanism enables the three-stage shell to be more stable and reliable in the lifting process.
The support column guide mechanism comprises a support column linear guide rail 27 and a support column slider matched with the support column linear guide rail 27, the support column linear guide rail 27 is arranged on the three-level sprocket support column 23 or the hollow support column 24, and the support column slider is arranged on the hollow support column 24 or the three-level sprocket support column 23. All stages of transmission mechanisms are mutually related through the linear guide rail, so that the whole rigidity is higher, and the equipment stability is better. The support column linear guide 27 can guide and limit the lifting action of the three-level chain wheel support column 23, and further improves the lifting stability of the synchronous telescopic lifting mechanism.
Tertiary sprocket support column 23 with be equipped with casing guiding mechanism between the level four casing 7, casing guiding mechanism includes casing linear guide 28 and the casing slider with casing linear guide 28 looks adaptation, casing linear guide 28 sets up on tertiary sprocket support column 23 or the level four casing 7, the casing slider sets up on level four casing 7 or the tertiary sprocket support column 23. The design of casing guiding mechanism makes the lift process of level four casing 7 steady more reliable, and it is spacing to further lead the lift action of level four casing 7 through linear guide, makes through linear guide between level four casing 7 and the tertiary sprocket support column 23 interrelated, and whole rigidity is higher, and equipment stability is better.
Be equipped with support column fixed block 26 on the hollow support column 24, be connected with chain fixed block 25 on the support column fixed block 26, chain fixed block 25 with the chain link on the straightway of tertiary chain 22 one side is connected, be connected with casing fixed block 29 on the level four casing 7, casing fixed block 29 with the chain link on the straightway of tertiary chain 22 opposite side is connected. The fixed block realizes that the chain is connected with hollow support column 24 and third-level chain 22 is connected with level four casing 7, and it is more convenient to install, has guaranteed the straight line transmission state of chain, avoids support column or level four casing 7's connection to disturb the transmission of chain.
And a fixing column fixing block connected with the second-stage chain fixing column 19 is arranged on the upper chain link of the straight line section on one side of the second-stage chain, and a connecting column 20 fixing block connected with the connecting column 20 is arranged on the lower chain link of the straight line section on the other side of the second-stage chain. Make the second grade chain and second grade chain fixed column 19 and spliced pole 20 be connected convenient and fast more, do not influence the vertical transmission effect of chain straightway simultaneously, not only be connected conveniently between base 6 of chain and bottom flange 1, tertiary casing, satisfy the transmission requirement of second grade chain moreover.
The power mechanism comprises a servo motor 9, a speed reducer 10, a driving synchronous wheel 11, a driven synchronous wheel 12 and a synchronous belt 13 surrounding the driving synchronous wheel 11 and the driven synchronous wheel 12, the driving synchronous wheel 11 is connected with the output end of the speed reducer 10, and the driven synchronous wheel 12 is arranged on the lower portion of a ball screw 14. The servo motor 9 rotates, power is transmitted to the driving synchronous wheel 11 through the speed reducer 10, the driving synchronous wheel 11 drives the driven synchronous wheel 12 to rotate through the synchronous belt 13, the ball screw 14 rotates, and the screw nut 15 moves along the axial direction of the ball screw 14, so that the lifting action of the secondary shell is realized.
The lower end of the ball screw 14 is connected with the bottom flange 1 through a bearing so as to drive the ball screw 14 to rotate under the action of a synchronizing wheel, and a screw nut 15 is fixed on a base of the secondary shell; the secondary chain wheel is fixed on the upper end and the lower end of the secondary chain wheel support column 18; the secondary chain wheel support column 18 is fixed on the base of the secondary shell; one chain link close to the straight line section on one side of the secondary chain is connected with the upper end of a secondary chain fixing column 19, and one chain link close to the straight line section on the other side of the secondary chain is connected with a base of the tertiary shell through a connecting column 20; the fixed lower end of the secondary chain fixing column 19 is fixedly connected with the bottom flange 1; the third-stage chain wheel is fixed at the upper end and the lower end of the third-stage chain wheel supporting column 23; the third-level chain wheel support column 23 is fixed on the base of the third-level shell; one chain link leaning on a straight line section on one side of the tertiary chain 22 is connected with the upper end of the hollow supporting column 24, and the lower end of the hollow supporting column 24 is fixed on the base of the secondary shell; the hollow supporting column 24 is sleeved outside the ball screw 14; the lower connection of the straight line section at the other side of the tertiary chain 22 is fixedly connected with the quaternary shell through a shell fixing block 29; the top flange 8 is fixed at the top end of the four-stage shell. The ball screw 14 rotates, the second-stage shell body goes up and down, the third-stage shell body and the second-stage shell body have relative distance to bring power to the third-stage shell body, the third-stage shell body goes up and down in the same way, the upper chain link of the straight line section on one side of the third-stage chain 22 is fixed with the base 4 of the second-stage shell body through the hollow supporting column 24, and the fourth-stage shell body 7 is driven to go up and down. Compared with the existing multistage synchronous lifting mechanism, the multistage synchronous lifting transmission mode has better rigidity, the integral deformation is still extremely small even when the multistage synchronous lifting mechanism is lifted to a higher position, the manufacturing cost is obviously reduced, and the advantages are obvious; all levels of transmission mechanisms are mutually associated, so that the overall rigidity is higher, and the equipment stability is better.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A synchronous telescopic lifting mechanism is characterized by comprising a bottom flange (1), a primary shell (2) arranged on the bottom flange (1), a synchronous telescopic secondary shell (3) and a synchronous telescopic tertiary shell (5) which are sequentially sleeved in the primary shell (2), wherein the secondary shell (3) lifts under the action of a primary transmission mechanism;
the primary transmission mechanism comprises a ball screw (14) and a screw nut (15), the ball screw (14) is rotatably arranged on the bottom flange (1), the ball screw (14) rotates under the action of a power mechanism, and the screw nut (15) is connected with the base (4) of the secondary shell;
the secondary shell (3) drives the tertiary shell (5) to synchronously lift through a secondary transmission mechanism;
the secondary transmission mechanism comprises two secondary chain wheels (16) and a secondary chain (17) wound on the secondary chain wheels, a secondary chain wheel supporting column (18) is arranged on a base (4) of the secondary shell, the two secondary chain wheels are respectively arranged on the upper portion and the lower portion of the secondary chain wheel supporting column (18), one side of the secondary chain is connected with a secondary chain fixing column (19), the lower end of the secondary chain fixing column (19) penetrates through the base (4) of the secondary shell and is connected with a bottom flange (1), and the other side of the secondary chain is connected with the tertiary shell or the base (6) of the tertiary shell through a connecting column (20).
2. The synchronous telescopic lifting mechanism according to claim 1, further comprising a fourth-stage shell (7) sleeved in the third-stage shell, wherein the third-stage shell is connected with the fourth-stage shell (7) through a third-stage transmission mechanism, and the second-stage transmission mechanism and the third-stage transmission mechanism are respectively arranged in the fourth-stage shell (7);
tertiary drive mechanism includes two tertiary sprockets (21) and encircles tertiary chain (22) on tertiary sprocket (21), be equipped with tertiary sprocket support column (23) on base (6) of tertiary casing, two tertiary sprocket sets up respectively the upper portion and the lower part of tertiary sprocket support column (23), one side of tertiary chain (22) is connected with cavity support column (24), the lower extreme of cavity support column (24) is passed base (6) of tertiary casing with base (4) of secondary casing are connected, the opposite side of tertiary chain (22) with level four casing (7) are connected.
3. The synchronous telescopic lifting mechanism according to claim 2, characterized in that a top flange (8) is provided on the quaternary housing (7).
4. The synchronous telescopic lifting mechanism according to claim 2, wherein the hollow support column (24) is fitted around the outside of the ball screw (14).
5. The synchronous telescopic lifting mechanism according to claim 2, 3 or 4, characterized in that a support column guide mechanism is provided between the hollow support column (24) and the tertiary sprocket support column (23).
6. The synchronous telescopic lifting mechanism according to claim 5, wherein the support column guide mechanism comprises a support column linear guide rail (27) and a support column slider matched with the support column linear guide rail (27), the support column linear guide rail (27) is arranged on the three-stage chain wheel support column (23) or the hollow support column (24), and the support column slider is arranged on the hollow support column (24) or the three-stage chain wheel support column (23).
7. The synchronous telescopic lifting mechanism according to claim 2, 3 or 4, wherein a housing guide mechanism is arranged between the third-stage sprocket support column (23) and the fourth-stage housing (7), the housing guide mechanism comprises a housing linear guide rail (28) and a housing slider matched with the housing linear guide rail (28), the housing linear guide rail (28) is arranged on the third-stage sprocket support column (23) or the fourth-stage housing (7), and the housing slider is arranged on the fourth-stage housing (7) or the third-stage sprocket support column (23).
8. The synchronous telescopic lifting mechanism according to claim 2, wherein a supporting column fixing block (26) is arranged on the hollow supporting column (24), a chain fixing block (25) is connected to the supporting column fixing block (26), the chain fixing block (25) is connected with a chain link on a straight line segment on one side of the third-stage chain (22), a shell fixing block (29) is connected to the fourth-stage shell (7), and the shell fixing block (29) is connected with a chain link on a straight line segment on the other side of the third-stage chain (22).
9. The synchronous telescopic lifting mechanism as claimed in claim 1, wherein a fixing column fixing block connected with the fixing column (19) of the secondary chain is arranged on the chain link of the straight line section on one side of the secondary chain, and a connecting column (20) fixing block connected with the connecting column (20) is arranged on the chain link of the straight line section on the other side of the secondary chain.
10. The synchronous telescopic lifting mechanism according to any one of claims 1 to 4, wherein the power mechanism comprises a servo motor (9), a speed reducer (10), a driving synchronizing wheel (11), a driven synchronizing wheel (12) and a synchronous belt (13) which is wound around the driving synchronizing wheel (11) and the driven synchronizing wheel (12), the driving synchronizing wheel (11) is connected with the output end of the speed reducer (10), and the driven synchronizing wheel (12) is arranged at the lower part of the ball screw (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220193047.4U CN216638778U (en) | 2022-01-24 | 2022-01-24 | Synchronous telescopic lifting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220193047.4U CN216638778U (en) | 2022-01-24 | 2022-01-24 | Synchronous telescopic lifting mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115727242A (en) * | 2022-08-17 | 2023-03-03 | 南京中车浦镇城轨车辆有限责任公司 | A lifting cantilever rotation mechanism |
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2022
- 2022-01-24 CN CN202220193047.4U patent/CN216638778U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115727242A (en) * | 2022-08-17 | 2023-03-03 | 南京中车浦镇城轨车辆有限责任公司 | A lifting cantilever rotation mechanism |
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