CN215432515U - Rotary position adjuster - Google Patents
Rotary position adjuster Download PDFInfo
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- CN215432515U CN215432515U CN202121078664.1U CN202121078664U CN215432515U CN 215432515 U CN215432515 U CN 215432515U CN 202121078664 U CN202121078664 U CN 202121078664U CN 215432515 U CN215432515 U CN 215432515U
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- pushing rod
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Abstract
The utility model provides a rotary position adjuster which comprises a screw shaft, an installation flange, a pushing rod, a movable bearing, a movable disc, an output rotating shaft and a butt flange, wherein the screw shaft comprises a rectangular pin and a screw rod, the installation flange comprises a connecting plate and a connecting sleeve, the rectangular pin is rotatably arranged in the connecting plate, the pushing rod is sleeved on the periphery of the screw rod, the pushing rod is axially movably arranged in the connecting sleeve, the pushing rod is in threaded connection with the screw shaft to form a first screw rod transmission mechanism, the movable bearing is sleeved on the tail end of the pushing rod, one end of the movable bearing is clamped in a clamping groove of the movable disc, the output rotating shaft is rotatably connected with the butt flange, external threads are arranged on the output rotating shaft, an internal thread hole is formed in the movable disc, the output rotating shaft is in threaded connection with the movable disc to form a second screw rod transmission mechanism, and the screw rod and the output rotating shaft are positioned on the same axis. The rotary position adjuster of the scheme has stable operation and compact volume; no risk of oil drainage pollution and quick response.
Description
Technical Field
The utility model belongs to the technical field of machinery, and particularly relates to a rotary position adjuster.
Background
In the prior art, the positions of two components on a rotating system are adjusted, and are often controlled by knobs. This has the advantage that the relative position of the two parts is substantially constant and adjustable whether the rotary system is operating or stopped. The function can be realized by adopting a rotary hydraulic valve, for example, in an eccentric body rotary vibration exciter, the relative position of two eccentric bodies is changed by utilizing liquid drive. However, such an adjusting mechanism has several technical problems: firstly, the production and maintenance costs of the liquid drive system are high; secondly, the response of the adjusting process is slow, and the problem of oil drainage pollution exists. Therefore, the mechanical structure system provided by the utility model is stable, small in size, free of oil drainage problem and quick in response.
In summary, there is a need to develop a new rotary position adjuster to solve the technical problems of high cost, slow response, easy oil leakage, etc. of the hydraulic drive system in the prior art, so as to obtain an adjusting mechanism with stable structure, small volume, no oil leakage, and fast response.
The utility model has the following contents:
the utility model aims to provide a rotary position adjuster, which solves the technical problems of high cost, slow response, easy oil leakage and the like of a liquid drive system in the prior art, and obtains an adjusting mechanism with stable structure, small volume, no oil leakage problem and quick response.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a rotary position adjuster comprises a screw shaft, a mounting flange, a pushing rod, a movable bearing, a movable disc, an output rotating shaft and a butt flange, wherein the screw shaft comprises a rectangular pin and a screw rod, the mounting flange comprises a connecting plate and a connecting sleeve, the rectangular pin is rotatably arranged in the connecting plate, the pushing rod is sleeved on the periphery of the screw rod, the pushing rod can be axially movably arranged in the connecting sleeve, the pushing rod and the screw shaft are in threaded connection to form a first screw rod transmission mechanism, the movable bearing is sleeved on the tail end of the pushing rod, one end of the movable bearing is clamped in a clamping groove of the movable disc, the output rotating shaft is rotatably connected with the butt flange, an external thread is arranged on the output rotating shaft, an internal thread hole is arranged on the movable disc, the output rotating shaft and the movable disc are in threaded connection to form a second screw rod transmission mechanism, the screw rod and the output rotating shaft are positioned on the same axis.
On the basis of the scheme, in another improved scheme, the screw shaft mounting structure further comprises a cover plate fixed on the surface of the mounting flange, and the cover plate is used for fixedly sealing the screw shaft in the mounting flange.
On the basis of the scheme, in another improved scheme, the output rotating shaft clamping device further comprises a sealing cover fixed on the surface of the butting flange, and the sealing cover is used for clamping the output rotating shaft on the butting flange.
On the basis of the scheme, in another improved scheme, the output rotating shaft is provided with a pin sheet perpendicular to the axis of the output rotating shaft, and the pin sheet is clamped on the butt flange by the sealing cover.
On the basis of the scheme, in another improved scheme, the device further comprises a rotary shell, a fixed bearing, a flange plate and springs, wherein the flange plate is fixedly connected with the end face of the connecting sleeve and used for supporting the fixed bearing, the fixed bearing is sleeved on the periphery of the connecting sleeve and connected with the inner wall of the connecting sleeve, the end part of the pushing rod penetrates through the flange plate and then is connected with the movable bearing, and at least two springs are symmetrically arranged between the movable plate and the butt flange; the movable cover of one end of rotatory shell be in connecting sleeve's periphery, the other end with flange fixed connection, fixed bearing, the ring flange and the activity dish is all arranged in rotatory shell's inside.
On the basis of the scheme, in another improved scheme, both the fixed bearing and the movable bearing are thrust ball bearings.
On the basis of the above scheme, in another improved scheme, at least two accommodating cavities are respectively arranged on the surfaces of the movable disc and the butting flange, which are opposite to each other, and two ends of the spring are respectively arranged in the accommodating cavities of the movable disc and the butting flange.
On the basis of the scheme, in another improved scheme, the tail end of the propelling rod is provided with a step, and the movable bearing is rotatably sleeved on the periphery of the step.
On the basis of the scheme, in another improved scheme, a guide rail is arranged on the inner wall of the connecting sleeve, an outer wing matched with the guide rail is arranged on the outer wall of the propelling rod, and the outer wing is movably arranged in the guide rail.
On the basis of the above solution, in another improved solution, the diameter of the flange is between the outer diameter of the connecting sleeve and the inner diameter of the rotating shell.
The technical scheme of the utility model has the following beneficial effects:
the working principle of the rotary position adjuster in the scheme is as follows: the mounting flange is fixed on a target position, and the output rotating shaft rotates for a certain angle relative to the butt flange by rotating the screw shaft for a certain angle. If the rotary screw shaft rotates in the opposite direction by the same angle, the output rotating shaft rotates in the opposite direction by the same angle relative to the butting flange. The butt flange and the output rotating shaft in the scheme are respectively connected with two parts of a rotating system of which the direction needs to be controlled, so that the relative position between the two parts of the rotating system can be adjusted by rotating the screw shaft, and the position adjustment between the two parts can be conveniently realized. The rotary position adjuster in the scheme is composed of a mechanical structure, and has small volume, stable operation and compact volume; the whole structure has no hydraulic component, no risk of oil drainage pollution and quick response.
Drawings
FIG. 1 is an exploded view of the rotary positioner of the present invention;
FIG. 2 is a front view of the rotary positioner of the present invention;
fig. 3 is a sectional view in the direction a-a of fig. 2.
1, covering a plate; 2, a screw shaft; 3, installing a flange; 4 rotating the shell; 5 a push rod; 6 fixing the bearing; 7, a flange plate; 8, a movable bearing; 9, a movable plate; 10 springs; 11, sealing the cover; 12 an output shaft; 13 abutting the flange.
Detailed Description
The following preferred embodiments of the present invention are provided to aid in a further understanding of the utility model. It should be understood by those skilled in the art that the description of the embodiments of the present invention is by way of example only, and not by way of limitation.
Referring to the schematic drawings of fig. 1 to 3, the rotary positioner in one embodiment of the present invention includes a screw shaft 2, an installation flange 3, a pushing rod 5, a movable bearing 8, a movable disk, an output rotating shaft 12 and a butt flange 13, the screw shaft 2 includes a rectangular pin and a screw rod, the installation flange 3 includes a connecting plate and a connecting sleeve, the rectangular pin is rotatably disposed in the connecting plate, the pushing rod 5 is sleeved on the periphery of the screw rod, the pushing rod 5 is axially movably disposed in the connecting sleeve, the pushing rod 5 and the screw shaft 2 are in threaded connection to form a first screw rod transmission mechanism, the movable bearing 8 is sleeved on the end of the pushing rod 5, one end of the movable bearing 8 is clamped in a clamping groove of the movable disk, the output rotating shaft 12 is rotatably connected with the butt flange 13, the output rotating shaft 12 is provided with an external thread, the movable disk is provided with an internal thread hole, the output rotating shaft 12 and the movable disk are in threaded connection to form a second screw rod transmission mechanism, the screw rod and the output rotating shaft 12 are positioned on the same axis. In this embodiment, the inner diameter of the connecting sleeve is greater than or equal to the outer diameter of the push rod 5, and the lead screw is located inside the connecting sleeve.
The working principle between the first screw transmission mechanism and the second screw transmission mechanism in the present embodiment will be described in detail with reference to fig. 1 to 3: first, in the first screw transmission mechanism: the push rod 5 can axially slide in the sleeve of the mounting flange 3, and because the inner thread structure is arranged inside the push rod 5, the screw rod of the screw shaft 2 is provided with the outer thread structure, and the screw shaft 2 and the push rod 5 form a first screw rod transmission mechanism together. Since the screw shaft 2 is fixed to the mounting flange 3, the push rod 5 will move axially within the attachment sleeve of the mounting flange 3 when the screw shaft 2 starts to rotate. Then, in the second screw transmission mechanism: an internal thread hole is formed in the movable disc, an external thread is arranged at the end of the output rotating shaft 12, and a second screw rod mechanism is formed between the movable disc and the output rotating shaft 12. When the push rod 5 is moved along the axis of the coupling sleeve, it will bring the movable disc also to move axially, i.e. the movable disc will move towards the direction of the counterflange 13. The output shaft 12 is rotatably connected to the docking flange 13, and when the movable disk moves along the axial direction of the output shaft 12, the output shaft 12 is driven to rotate relative to the docking flange 13 by the axial movement of the movable disk due to the threaded connection between the movable disk and the output shaft 12.
When the rotary position adjuster in the embodiment is used, the mounting flange 3 is fixed at a designated position, and the first screw rod transmission mechanism and the second screw rod transmission mechanism are arranged, so that the output rotating shaft 12 rotates relative to the butt flange 13 when the screw shaft 2 is rotated. By connecting the docking flange 13 and the output shaft 12 in this embodiment to two components of a rotary system whose direction needs to be controlled, respectively, the relative position between the two components of the rotary system can be adjusted by rotating the screw shaft 2. Rotating the screw shaft 2 by a certain angle, the output rotating shaft 12 will also rotate by a certain angle with respect to the abutment flange 13. If the rotary screw shaft 2 is then rotated in the opposite direction by the same angle, the output rotary shaft 12 will be rotated in the opposite direction by the same angle with respect to the counter flange 13.
Referring to the schematic drawings of fig. 1 to 3, in another modified embodiment, on the basis of the above embodiment, the rotary positioner further comprises a cover plate 1 fixed on the surface of the mounting flange 3, and the cover plate 1 is used for fixedly sealing the screw shaft 2 in the mounting flange 3 to prevent the screw shaft 2 from being removed from the mounting flange 3 during operation.
Referring to the schematic drawings of fig. 1 and 3, in another modified embodiment, on the basis of the above embodiment, the rotary positioner further comprises a cover 11 fixed on the surface of the docking flange 13, the cover 11 is arranged on the side of the docking flange 13 facing the mounting flange 3, and the cover 11 is used for clamping the output rotary shaft 12 on the docking flange 13. In another modified example of this embodiment, a pin piece perpendicular to the axis of the output rotating shaft 12 is disposed on the output rotating shaft 12, the pin piece is disposed on the side of the docking flange 13 facing the mounting flange 3, the cover 11 is in a shallow disc shape, the inner diameter of the cover 11 is greater than the outer diameter of the pin piece, the output rotating shaft 12 passes through the cover 11, and the cover 11 and the docking flange 13 are fixedly connected by bolts. In this way, the cover 11 clamps the pin piece on the docking flange 13, and ensures that the output shaft 12 only rotates and does not move axially during operation.
Referring to the schematic diagrams of fig. 1 to fig. 3, on the basis of the above embodiment, in another modified embodiment, the rotary positioner further includes a rotary housing 4, a fixed bearing 5, a flange 7 and springs 10, the flange 7 is fixedly connected with an end surface of the connecting sleeve, the flange 7 is used for supporting the fixed bearing 5, the fixed bearing 5 is sleeved on the periphery of the connecting sleeve and is connected with an inner wall of the connecting sleeve, an end of the pushing rod 5 passes through the flange 7 and then is connected with the movable bearing 8, and at least two springs 10 are symmetrically arranged between the movable disk and the butting flange 13; one end of the rotary shell 4 is movably sleeved on the periphery of the connecting sleeve, the other end of the rotary shell is fixedly connected with the butt flange 13 through screws or welding and other modes, and the fixed bearing 5, the flange plate 7 and the movable plate are arranged inside the rotary shell 4.
The working principle of the rotary positioner in the embodiment is briefly described with reference to fig. 1 to 3: after the mounting flange 3 is fixed at a designated position, the rotating shell 4, the fixed bearing 5, the flange plate 7, the movable bearing 8, the movable plate, the output rotating shaft 12 and the butt flange 13 form a rotating mechanism. The fixed bearing 5 is connected with the inner wall of the rotating shell 4, and the movable bearing 8 is connected with the movable disc; the rotating housing 4 can thus rotate in a radial direction with respect to the mounting flange 3, and the movable disc can rotate in a radial direction with respect to the push rod 5, i.e. the entire rotating mechanism can rotate in a radial direction with respect to the mounting flange 3. When the screw shaft 2 is rotated in one direction, the pushing rod 5 moves axially relative to the mounting flange 3, at this time, the pushing rod 5 moves towards the movable disk 9, and at the same time, the movable disk 9 is driven to move axially, and at this time, the output rotating shaft 12 rotates at a certain angle relative to the butting flange 13 (see the description of the working principle of the previous embodiment); as the movable disc 9 moves axially, the spring 10 is compressed. When the screw shaft 2 is rotated reversely, the pushing rod 5 moves away from the movable disk 9, and the output rotating shaft 12 rotates reversely relative to the abutting flange 13, and the spring 10 is stretched.
In the rotary position adjuster of this embodiment, when the output shaft 12 is connected to one end of a rotating shaft in a certain mechanical structure, the rotating shaft drives the whole rotating mechanism to rotate 360 degrees in the radial direction. Even during rotation, the output rotary shaft 12 can still be rotated relative to the docking flange 13 by rotating the screw shaft 2, so that the two components of the rotary system can still be changed in relative position in the rotating state. The rotary position adjuster of the embodiment can be applied to adjusting the relative position relation of two components in a static state and also can be applied to adjusting the relative position relation of two components in a rotating state, has wide application range and convenient operation, and avoids the technical problems of oil leakage, corresponding slow adjustment and the like in the prior art which adopts a liquid drive system.
On the basis of the above embodiment, in another modified embodiment, both the fixed bearing 5 and the movable bearing 8 are thrust ball bearings. By providing the stationary bearing 5, rotation of the rotating housing 4 in a radial direction with respect to the mounting flange 3 is achieved. By providing the movable bearing 8, on the one hand the push rod 5 and the movable disc can be connected, and on the other hand a radial rotation of the movable disc relative to the push rod 5 can be achieved.
On the basis of the above embodiment, in another modified embodiment, at least two accommodating cavities are respectively arranged on the surfaces of the movable disk and the docking flange 13, which are opposite to each other, and two ends of the spring 10 are respectively arranged in the accommodating cavities of the movable disk and the docking flange 13. This arrangement ensures that the travel of the spring 10 does not deviate from the predetermined path.
On the basis of the above embodiment, in another modified embodiment, the end of the push rod 5 is provided with a step, and the movable bearing 8 is rotatably sleeved on the outer periphery of the step.
On the basis of the above-described embodiment, in a further improved embodiment, the diameter of the flange 7 is between the outer diameter of the coupling sleeve and the inner diameter of the rotary housing 4. The flange 7 is fixed on the end face of the connecting sleeve of the mounting flange 3, the flange 7 is used for supporting the fixed bearing 5, when the rotary shell 4 rotates in the radial direction relative to the mounting flange 3, the flange 7 cannot rotate, and the diameter of the flange 7 is smaller than that of the rotary shell 4, so that the rotation of the rotary shell 4 in the radial direction cannot be influenced.
Referring to the schematic diagrams of fig. 1 and fig. 3, on the basis of the above embodiment, in another modified embodiment, at least two springs 10 are symmetrically arranged between the movable disk 9 and the butting flange 13, and two ends of each spring 10 are respectively connected with the movable disk 9 and the butting flange 13. In this embodiment, the number of the springs 10 is four, and the four springs 10 are symmetrically arranged between the movable plate 9 and the abutting flange 13.
Referring to the schematic diagrams of fig. 1 and fig. 3, on the basis of the above embodiment, in another modified embodiment, at least two accommodating cavities are respectively arranged on the surfaces of the movable disk 9 and the butting flange 13, which are opposite to each other, and two ends of the spring 10 are respectively arranged in the accommodating cavities of the movable disk 9 and the butting flange 13. In this embodiment, the opposite surfaces of the movable disc 9 and the docking flange 13 are respectively provided with a convex accommodating cavity by welding or integral molding, so that the two ends of the spring 10 are respectively clamped in the accommodating cavities of the movable disc 9 and the docking flange 13, and the deformation path of the spring 10 is restricted.
Referring to the schematic drawings of fig. 1 and 3, on the basis of the above embodiment, in another modified embodiment, the inner wall of the connecting sleeve of the mounting flange 3 is provided with at least 2 guide rails, the outer wall of the propulsion lever 5 is provided with at least 2 outer wings matched with the guide rails, and the outer wings are arranged in the guide rails and can move along the guide rails. Thus, the push rod 5 is sleeved in the guide rail in the mounting flange 3 and forms a first screw rod transmission mechanism with the screw shaft 2, and when the screw shaft 2 rotates, the push rod 5 moves in the axial direction along the guide rail.
Finally, it should be noted that the above embodiments are only used for illustrating the technical embodiments of the present application and not for limiting the protection scope thereof, and although the present application is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: numerous variations, modifications, and equivalents will occur to those skilled in the art upon reading the present application and are within the scope of the claims as issued or as granted.
Claims (9)
1. A rotary position adjuster is characterized by comprising a screw shaft, a mounting flange, a pushing rod, a movable bearing, a movable disc, an output rotating shaft and a butt flange, wherein the screw shaft comprises a rectangular pin and a lead screw, the mounting flange comprises a connecting plate and a connecting sleeve, the rectangular pin is rotatably arranged in the connecting plate, the pushing rod is sleeved on the periphery of the lead screw, the pushing rod is axially movably arranged in the connecting sleeve, the pushing rod and the screw shaft are in threaded connection to form a first lead screw transmission mechanism, the movable bearing is sleeved on the tail end of the pushing rod, one end of the movable bearing is clamped in a clamping groove of the movable disc, the output rotating shaft is rotatably connected with the butt flange, an external thread is arranged on the output rotating shaft, an internal thread hole is formed in the movable disc, the output rotating shaft and the movable disc are in threaded connection to form a second lead screw transmission mechanism, the screw rod and the output rotating shaft are positioned on the same axis.
2. The rotary positioner of claim 1, further comprising a cover plate secured to a surface of the mounting flange, the cover plate for fixedly sealing the screw shaft in the mounting flange.
3. The rotary positioner of claim 2, further comprising a cover secured to a surface of the docking flange, the cover configured to clamp the output spindle to the docking flange.
4. The rotary positioner according to any one of claims 1 to 3, further comprising a rotary housing, a fixed bearing, a flange plate and springs, wherein the flange plate is fixedly connected with the end face of the connecting sleeve, the flange plate is used for supporting the fixed bearing, the fixed bearing is sleeved on the periphery of the connecting sleeve and is connected with the inner wall of the connecting sleeve, the end of the pushing rod penetrates through the flange plate and is connected with the movable bearing, and at least two springs are symmetrically arranged between the movable plate and the butt flange; the movable cover of one end of rotatory shell be in connecting sleeve's periphery, the other end with flange fixed connection, fixed bearing, the ring flange and the activity dish is all arranged in rotatory shell's inside.
5. The rotary positioner of claim 4, wherein the fixed bearing and the movable bearing are both thrust ball bearings.
6. The rotary positioner of claim 5, wherein the movable disk and the docking flange are each provided with at least two receiving cavities on their surfaces facing each other, and both ends of the spring are respectively disposed in the receiving cavities of the movable disk and the docking flange.
7. The rotary position adjuster according to claim 6, wherein the end of the pushing rod is provided with a step, and the movable bearing is rotatably sleeved on the outer periphery of the step.
8. The rotary positioner of claim 6, wherein the inner wall of the connecting sleeve is provided with a guide rail, and the outer wall of the propelling rod is provided with an outer wing matched with the guide rail, and the outer wing is movably arranged in the guide rail.
9. The rotary positioner of claim 7, wherein the flange has a diameter between an outer diameter of the coupling sleeve and an inner diameter of the rotary housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121078664.1U CN215432515U (en) | 2021-05-19 | 2021-05-19 | Rotary position adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121078664.1U CN215432515U (en) | 2021-05-19 | 2021-05-19 | Rotary position adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215432515U true CN215432515U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121078664.1U Active CN215432515U (en) | 2021-05-19 | 2021-05-19 | Rotary position adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215432515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115365843A (en) * | 2021-05-19 | 2022-11-22 | 湖南乾壹重工科技有限公司 | Rotary position adjuster |
-
2021
- 2021-05-19 CN CN202121078664.1U patent/CN215432515U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115365843A (en) * | 2021-05-19 | 2022-11-22 | 湖南乾壹重工科技有限公司 | Rotary position adjuster |
| CN115365843B (en) * | 2021-05-19 | 2024-06-14 | 湖南乾壹重工科技有限公司 | Rotary position regulator |
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Effective date of registration: 20220905 Address after: Room 309, Building 2, Advanced Equipment Manufacturing Industrial Park, Loudi High-tech Industrial Development Zone, Lianyuan City, Loudi City, Hunan Province 417100 Patentee after: Loudi Jinhui Machinery Co.,Ltd. Address before: 417000 room 209, building 2, advanced equipment manufacturing industrial park, Loudi high tech Industrial Development Zone, Lianyuan City, Loudi City, Hunan Province Patentee before: Hunan Qianyi Heavy Industry Technology Co.,Ltd. |