CN219266688U

CN219266688U - Elevating platform that optical component used

Info

Publication number: CN219266688U
Application number: CN202320142649.1U
Authority: CN
Inventors: 许坚林
Original assignee: Foshan Base Optical Technology Co ltd
Current assignee: Foshan Base Optical Technology Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-06-27
Anticipated expiration: 2033-02-07

Abstract

The utility model discloses a lifting table for an optical assembly, which comprises: a base; the mounting seat is slidably arranged on the base, and a transmission rack is arranged on the mounting seat; the lifting adjusting mechanism comprises a first rotating shaft rotatably arranged on the base, and a transmission gear meshed with the transmission rack is arranged on the first rotating shaft; the damping adjusting mechanism comprises a second rotating shaft and a thrust bearing, the second rotating shaft is rotatably arranged on the base and is coaxially arranged with the first rotating shaft, the end part of the second rotating shaft is in threaded connection with the end part of the first rotating shaft, the thrust bearing is arranged on the base and is sleeved with the second rotating shaft, and a positioning step part for extruding the end face of the thrust bearing is arranged on the second rotating shaft. Damping when the first rotating shaft rotates can be flexibly adjusted, and the rotary shaft is convenient to adapt to different rotating handfeel.

Description

Elevating platform that optical component used

Technical Field

The utility model relates to the technical field of optical experimental instruments, in particular to a lifting table for an optical assembly.

Background

The optical system is provided with rich accessories and adapters, and can build demonstration and learning systems of various optical phenomena, theories, laws and the like; in the optical system, the optical component is basically arranged on a mounting mechanism capable of adjusting the position, so that the position of the optical component can be conveniently adjusted; the current installation mechanism is generally adjusted by utilizing a rotating shaft when the installation mechanism is adjusted, the position of the optical component is adjusted by rotating the rotating shaft, the tightness degree of the rotating shaft can influence the rotating hand feeling, if the rotating shaft is too loose, the accurate adjustment of the optical component can not be easily realized, and if the rotating shaft is too tight, the adjustment efficiency of the optical component can be lower; in addition, when the optical assembly is adjusted to a proper position, in order to prevent the rotating shaft from being influenced by the outside, the end part of the locking bolt is generally abutted against the outer wall of the rotating shaft to fix the rotating shaft; when the position of the optical component needs to be adjusted again, the locking bolt needs to be unscrewed by a tool, the rotating shaft can be rotated, and the operation is troublesome.

Disclosure of Invention

In view of the above, the present utility model provides a lifting platform for an optical assembly, which can solve at least one of the above problems to some extent.

The technical scheme of the utility model is realized as follows:

a lift table for an optical assembly, comprising:

a base;

the mounting seat is slidably arranged on the base, and a transmission rack is arranged on the mounting seat;

the lifting adjusting mechanism comprises a first rotating shaft rotatably arranged on the base, and a transmission gear meshed with the transmission rack is arranged on the first rotating shaft;

the damping adjusting mechanism comprises a second rotating shaft and a thrust bearing, the second rotating shaft is rotatably arranged on the base and is coaxially arranged with the first rotating shaft, the end part of the second rotating shaft is in threaded connection with the end part of the first rotating shaft, the thrust bearing is arranged on the base and is sleeved with the second rotating shaft, and a positioning step part for extruding the end face of the thrust bearing is arranged on the second rotating shaft.

As a further alternative of the lifting platform for the optical assembly, the first rotating shaft and the second rotating shaft are both provided with rotating handwheels.

As a further alternative of the lifting platform for the optical assembly, the lifting platform further comprises an overload protection mechanism, the rotating hand wheel comprises a mounting plate, a through hole is arranged on the mounting plate, and the through hole and the first rotating shaft/the second rotating shaft are coaxially arranged; the first rotating shaft/the second rotating shaft is provided with a positioning surface opposite to the axial direction, the overload protection mechanism comprises a fixing member used for pressing the mounting plate on the positioning surface of the first rotating shaft/the second rotating shaft, and a waveform gasket is arranged between the fixing member and the mounting plate.

As a further alternative of the lifting platform for the optical assembly, a threaded connection column is provided at an end of the first rotating shaft/the second rotating shaft, the fixing member is a nut screwed on the threaded connection column, the through hole of the mounting plate is sleeved on the threaded connection column, and the fixing member presses the mounting plate on the positioning surface of the first rotating shaft/the second rotating shaft.

As a further alternative of the lifting platform for the optical assembly, a threaded connection hole is formed at an end portion of the first rotating shaft/the second rotating shaft, the fixing member is a bolt which is in threaded connection with the threaded hole, a through hole of the mounting plate is sleeved on a stud of the bolt, and a nut of the bolt presses the mounting plate on a positioning surface of the first rotating shaft/the second rotating shaft.

As a further alternative of the lifting platform for the optical assembly, the rotating hand wheel further comprises an annular rotating plate fixedly connected with the mounting plate, and friction patterns are arranged on the outer circumferential surface of the annular rotating plate.

As a further alternative of the elevating platform for the optical assembly, the transmission gear and the transmission rack are of a helical tooth structure.

The utility model has the beneficial effects that: the transmission gear on the lifting adjusting mechanism is meshed with the transmission rack of the lifting seat, and when the first rotating shaft is rotated, the mounting seat can be driven to lift on the base; through setting up damping adjustment mechanism, rotate the second pivot is in order to realize the axial displacement of second pivot makes the epaxial location step portion of second extrusion thrust bearing, the damping increase when making the second pivot rotate, and the damping of second pivot is transmitted to first pivot on to adjust the elasticity when first pivot rotates.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a lifting platform for an optical module according to the present utility model;

FIG. 2 is an exploded view of a lift table for an optical module according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a lift table for an optical assembly according to the present utility model;

FIG. 4 is an exploded view of the lift adjustment mechanism and the damping adjustment mechanism;

fig. 5 is a schematic structural view of the overload protection mechanism.

In the figure: 1. a base; 2. a mounting base; 21. a drive rack; 3. a lifting adjusting mechanism; 31. a first rotating shaft; 32. a transmission gear; 4. a damping adjustment mechanism; 41. a second rotating shaft; 411. positioning the step part; 42. a thrust bearing; 5. rotating a hand wheel; 51. a mounting plate; 52. an annular rotating plate; 6. overload protection mechanism; 61. a fixing member; 62. a wave washer; 63. a threaded connection post; 7. and a positioning surface.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-4, there is shown a lift table for an optical assembly, comprising a base 1, a mount 2, a lift adjustment mechanism 3, and a damping adjustment mechanism 4; the mounting seat 2 is slidably arranged on the base 1, and a transmission rack 21 is arranged on the mounting seat 2; the lifting adjusting mechanism 3 comprises a first rotating shaft 31 rotatably arranged on the base 1, and a transmission gear 32 meshed with the transmission rack 21 is arranged on the first rotating shaft 31; the damping adjustment mechanism 4 comprises a second rotating shaft 41 and a thrust bearing 42, the second rotating shaft 41 is rotatably arranged on the base 1 and is coaxially arranged with the first rotating shaft 31, the end part of the second rotating shaft 41 is in threaded connection with the end part of the first rotating shaft 31, the thrust bearing 42 is arranged on the base 1 and is sleeved with the second rotating shaft 41, and a positioning step part 411 for extruding the end face of the thrust bearing 42 is arranged on the second rotating shaft 41.

Specifically, the optical component is mounted on the mounting base 2, the first rotating shaft 31 of the lifting adjustment mechanism 3 drives the mounting base 2 to slide on the base 1 through the transmission gear 32, and in this embodiment, the sliding direction is vertical, that is, lifting adjustment of the optical component and the mounting base 2 can be achieved; the damping adjusting mechanism 4 can adjust the damping of the first rotating shaft 31 during rotation, namely, can adjust the tightness of the first rotating shaft 31 during rotation, and adjusts the first rotating shaft to a proper rotating hand feeling.

Damping when the first rotating shaft 31 rotates is specifically adjusted as follows: the second rotating shaft 41 is coaxially arranged with the first rotating shaft 31 and is in threaded connection with the end parts of the first rotating shaft 31, when rotation damping needs to be adjusted, the first rotating shaft 31 is stabilized to be fixed, and then the second rotating shaft 41 is rotated, so that the second rotating shaft 41 moves in the axial direction; when the second rotating shaft 41 moves in a direction approaching to the thrust bearing 42, the positioning step 411 on the second rotating shaft 41 presses the thrust bearing 42, and the axial stress applied to the positioning step 411 increases, so that the damping when the second rotating shaft 41 rotates increases, and when the first rotating shaft 31 rotates, the second rotating shaft 41 is driven by the first rotating shaft 31 to rotate synchronously, so that the damping on the second rotating shaft 41 is transmitted to the first rotating shaft 31, that is, the greater the damping of the second rotating shaft 41 is, the greater the damping of the first rotating shaft 31 is; in contrast, when the rotation damping needs to be reduced, the second rotating shaft 41 is rotated to move in a direction away from the thrust bearing 42; the axial position of the first rotating shaft 31 on the base 1 is fixed.

Thus, the damping of the first rotating shaft 31 during rotation can be flexibly adjusted, so as to be convenient for adapting to different rotation handfeel; in addition, after the mounting seat 2 has been adjusted to a proper position, the damping adjustment mechanism 4 can be directly utilized to increase damping, so that the first rotation is prevented from being easy to rotate; compared with the existing fixing structure, the fixing structure does not need to screw bolts by using a tool, and is simple and quick to operate.

In some embodiments, to facilitate rotating the first shaft 31 and the second shaft 41, referring to fig. 1-4, a rotation hand wheel 5 is disposed on each of the first shaft 31 and the second shaft 41. So, can directly rotate hand wheel 5, two rotation hand wheels 5 are located respectively the both sides of base 1, be convenient for both hands operation.

In some embodiments, referring to fig. 3-5, the device further includes an overload protection mechanism 6, where the overload protection mechanism 6 can protect the first shaft 31 and the second shaft 41, and when the moment is too large, if the rotating hand wheel 5 is rotated, the overload protection mechanism 6 can slip between the rotating hand wheel 5 and the first shaft 31/second shaft 41, so that the rotating hand wheel 5 cannot drive the first shaft 31/second shaft 41 to rotate, and avoid breakage of the first shaft 31/second shaft 41.

In detail, the rotary hand wheel 5 includes a mounting plate 51, and a through hole is disposed on the mounting plate 51, and the through hole is coaxially disposed with the first shaft 31/the second shaft 41; the first shaft 31/second shaft 41 has a positioning surface 7 opposite to the axial direction, the overload protection mechanism 6 includes a fixing member 61 for pressing the mounting plate 51 against the positioning surface 7 of the first shaft 31/second shaft 41, and a wave washer 62 is disposed between the fixing member 61 and the mounting plate 51. Wherein, the fixing member 61 presses the mounting plate 51 to the positioning surface 7 on the first rotating shaft 31/second rotating shaft 41 through the wave washer 62, and when the moment is smaller, the rotating hand wheel 5 can drive the first rotating shaft 31/second rotating shaft 41 to rotate; when the moment is larger, if the rotating hand wheel 5 is forcibly rotated, the mounting plate 51 will squeeze the wave-shaped spacer 62, so that the gap between the mounting plate 51 and the positioning surface 7 becomes larger, the friction force becomes smaller, the two slip, and the rotating hand wheel 5 cannot drive the first rotating shaft 31/the second rotating shaft 41 to rotate.

In some embodiments, in order to facilitate the pressing of the fixing member 61 against the mounting plate 51, referring to fig. 5, a threaded connection post 63 is disposed at an end of the first shaft 31/second shaft 41, the fixing member 61 is a nut screwed on the threaded connection post 63, a through hole of the mounting plate 51 is sleeved on the threaded connection post 63, and the fixing member 61 presses the mounting plate 51 against the positioning surface 7 of the first shaft 31/second shaft 41. In this embodiment, the positioning surface 7 is at the connection between the end of the first shaft 31/second shaft 41 and the threaded connection post 63.

In other embodiments, the fixing member 61 may further press the mounting plate 51 by other structures, a threaded connection hole (not shown) is provided at an end of the first shaft 31/the second shaft 41, the fixing member 61 is a bolt screwed on the threaded hole, a through hole of the mounting plate 51 is sleeved on a stud of the bolt, and a nut of the bolt presses the mounting plate 51 on the positioning surface 7 of the first shaft 31/the second shaft 41. In this embodiment, the positioning surface 7 is an end surface of the first rotating shaft 31/the second rotating shaft 41.

Both the above structures can realize that the fixing member 61 is pressed against the mounting plate 51, and the structure is simple and the assembly is convenient.

In particular, referring to fig. 1-5, the rotating hand wheel further includes an annular rotating plate 52 fixedly connected with the mounting plate, and a friction pattern is disposed on an outer peripheral surface of the annular rotating plate 52. Thereby facilitating rotation of the rotatable handwheel.

The above scheme is specific, the transmission gear 32 and the transmission rack 21 have a helical tooth structure, and are more compact in structure and smaller in transmission clearance relative to a straight tooth structure, so that the position of the mounting seat 2 when lifting is more accurate.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A lift table for an optical assembly, comprising:

a base;

2. The lift table for an optical assembly of claim 1, wherein a rotatable handwheel is disposed on each of the first and second shafts.

3. The lift table for an optical assembly of claim 2, further comprising an overload protection mechanism, wherein the rotatable handwheel comprises a mounting plate having a through hole disposed therein, the through hole being coaxial with the first/second axis of rotation; the first rotating shaft/the second rotating shaft is provided with a positioning surface opposite to the axial direction, the overload protection mechanism comprises a fixing member used for pressing the mounting plate on the positioning surface of the first rotating shaft/the second rotating shaft, and a waveform gasket is arranged between the fixing member and the mounting plate.

4. A lifting platform for an optical assembly according to claim 3, wherein a threaded connection post is arranged at the end part of the first rotating shaft/the second rotating shaft, the fixing member is a nut which is connected to the threaded connection post in a threaded manner, the through hole of the mounting plate is sleeved on the threaded connection post, and the fixing member presses the mounting plate on the positioning surface of the first rotating shaft/the second rotating shaft.

5. A lifting platform for an optical assembly according to claim 3, wherein the end of the first rotating shaft/the second rotating shaft is provided with a threaded connection hole, the fixing member is a bolt which is connected to the threaded connection hole in a threaded manner, the through hole of the mounting plate is sleeved on a stud of the bolt, and a nut of the bolt presses the mounting plate on the positioning surface of the first rotating shaft/the second rotating shaft.

6. The lift table for an optical assembly of any one of claims 3-5, wherein the rotating hand wheel further comprises an annular rotating plate fixedly connected to the mounting plate, and a friction pattern is provided on an outer peripheral surface of the annular rotating plate.

7. The lift table for an optical assembly of claim 1, wherein the drive gear and the drive rack are of a helical configuration.