Double-optical-wedge adjusting device

Abstract

The utility model discloses a double-optical-wedge adjusting device which comprises a mounting bottom plate, first bearing mounting plates symmetrically mounted on the mounting bottom plate, a second bearing mounting plate mounted at the tops of the two first bearing mounting plates, first bearings mounted in the first bearing mounting plates, worm gears mounted on inner rings of the first bearings, and second bearings mounted on outer rings of the worm gears. An optical wedge is mounted on the worm gear, the worm gear is in transmission connection with a worm, the two ends of the worm are connected to the mounting bottom plate and the second bearing mounting plate through second bearings respectively, and a first straight gear and a second straight gear are embedded in the ends, penetrating through the second bearing mounting plate, of the worm respectively; and the gears are in transmission connection. The device is simple and compact in structure, the deviation angle of the optical wedges can be rapidly adjusted, the two optical wedges are used in a matched mode, the two worm wheels rotate oppositely and reversely, the two wedge angles are combined to form different deviation angles, then the directivity of the optical axis of photoelectric equipment is adjusted, and good coaxiality and synchronism are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optoelectronic equipment, and in particular relates to a double optical wedge adjustment device. Background Art

[0002] The double wedge is an optomechanical component consisting of two close-to-each-other wedges with the same refractive index and equal refractive angle. The double wedge structure is a commonly used optical axis pointing adjustment structure in optoelectronic equipment. It has the advantages of simple and compact structure, fast adjustment speed and large deflection angle. Its main function is to adjust the optical axis pointing by adjusting the rotation angle of the double wedge. Based on the above advantages, the double wedge is widely used in navigation systems, laser radar systems, satellite interaction systems, laser micro-hole processing optical paths, and high-precision angle generators.

[0003] At present, the most common dual wedge adjustment scheme in optoelectronic equipment is to install the two wedges into the adjustment sleeves respectively, and install the adjustment sleeves with the wedges into the same mounting bracket for rotational adjustment; the other is to install the adjustment sleeves with the wedges into different mounting brackets for rotational adjustment. Install the adjustment sleeves with the wedges into the same mounting bracket for adjustment. This adjustment method ensures good coaxiality of the two wedges during the adjustment process, but each wedge needs to be adjusted separately, and synchronization cannot be guaranteed. Install the adjustment sleeves with the wedges into different mounting brackets for adjustment. In this adjustment method, not only can the two wedges not ensure good coaxiality during the adjustment process, but each wedge needs to be adjusted separately, and synchronization cannot be guaranteed, and a larger installation space is required. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a double optical wedge adjustment device. In this scheme, two optical wedges are respectively installed in two worm gears, and a pair of spur gears with different rotation speeds are used to drive the two worm gears to move in different directions and rotation speeds through two worms, so that the coaxiality of the two optical wedges can be ensured while good synchronization can be ensured.

[0005] The utility model achieves this purpose through the following technical solutions:

[0006] A double optical wedge adjustment device comprises a mounting base plate, a first bearing mounting plate symmetrically mounted on the mounting base plate, a second bearing mounting plate mounted on the top of the two first bearing mounting plates, a first bearing mounted in the first bearing mounting plate, a worm gear mounted on the inner ring of the first bearing, an optical wedge mounted on the worm gear, the worm gear is connected to a worm gear in a transmission manner, two ends of the worm gear are respectively connected to the mounting base plate and the second bearing mounting plate through a second bearing, a first spur gear and a second spur gear are respectively nested in the ends of the worm gear passing through the second bearing mounting plate, and the gears are connected to gears in a transmission manner.

[0007] Furthermore, the first bearing is pressed and fixed by a first bearing pressing sheet installed on the first bearing mounting plate.

[0008] Furthermore, the worm gear is clamped and fixed by a first bearing pressure ring.

[0009] Furthermore, shaft shoulders are provided at both ends of the worm for pressing and fixing the second bearing.

[0010] Furthermore, the first spur gear and the second spur gear are respectively provided with gear limiting parts that cooperate with the worm limiting parts on the worm.

[0011] Furthermore, a rotating wheel is provided on the first spur gear or the second spur gear.

[0012] Furthermore, the rotating wheel is transmission-connected to a driving motor.

[0013] Furthermore, the optical wedge is provided with a wedge angle α.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The two optical wedges can be rotated and adjusted synchronously to form different deflection angles;

[0016] 2. Simple structure, easy operation and high adjustment accuracy;

[0017] 3. The optical axis direction has a large adjustment range and has good optical axis directivity.

[0018] In summary, the utility model provides a dual optical wedge adjustment device with a simple and compact structure, which can quickly adjust the optical wedge deflection angle. The optical wedge is used in combination with two pieces. Through the relative reverse rotation of the two worm gears, different deflection angles are formed by the combination of the two wedge angles α, thereby adjusting the directivity of the optical axis of the optoelectronic device, and having good coaxiality and synchronization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 This is a front view of an embodiment of the utility model;

[0022] Figure 3 It is a left view of an embodiment of the utility model;

[0023] Figure 4 yes Figure 2 Middle AA section profile;

[0024] Figure 5 yes Figure 3 Sectional view of the middle BB section;

[0025] Figure 6 This is a schematic diagram of the first straight gear structure of the utility model embodiment;

[0026] Figure 7 This is a schematic diagram of the wedge angle of the optical wedge in the embodiment of the utility model;

[0027] Figure 8 It is a schematic diagram of the worm structure of an embodiment of the utility model.

[0028] In the figure: 1-mounting base plate; 2-first bearing pressure plate; 3-optical wedge; 4-first bearing pressure ring; 5-second bearing mounting plate; 6-first spur gear; 7-second spur gear; 8-rotating wheel; 9-worm; 10-worm wheel; 11-first bearing mounting plate; 12-first bearing; 13-second bearing; 14-gear limiting part; 15-worm limiting part; 16-shaft shoulder. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] See also Figures 1 to 8 The utility model discloses an embodiment of a double optical wedge adjustment device, comprising a mounting base plate 1, a second bearing mounting plate 5, and a first bearing mounting plate 11. The first bearing mounting plate 11 is symmetrically mounted on both sides of the mounting base plate 1 by screws, and the second bearing mounting plate 5 is mounted on the top of the first bearing mounting plate 11 by screws, together forming the main mounting structure of the double optical wedge adjustment device.

[0031] The outer ring of the first bearing 12 is installed in the first bearing mounting plate 11 and is fixed by the first bearing pressing plate 2. The first bearing pressing plate 2 is installed on the first bearing mounting plate 11 by screws.

[0032] The outer ring of the second bearing 13 is respectively mounted in the mounting base plate 1 and the second bearing mounting plate 5 , and is pressed and fixed by the shaft shoulders 17 at both ends of the worm 9 .

[0033] The worm gear 10 is mounted on the inner ring of the first bearing 12 and is clamped and fixed by the first bearing pressing ring 4 .

[0034] The first spur gear 6 and the second spur gear 7 are respectively embedded in one end of the worm 9 and fastened by screws.

[0035] The gear limiting parts 14 on the first spur gear 6 and the second spur gear 7 respectively cooperate with the worm limiting parts 15 on the worm 9 .

[0036] The optical wedge 3 is provided with a wedge angle α, that is, the angle between the oblique cutting direction on the thickness of the optical wedge lens and the plane of the optical wedge lens is α. The optical wedge 3 with the wedge angle α is attached to the worm gear 10 by optical adhesive.

[0037] The rotating wheel 8 is mounted on the second spur gear 7 by screws. In the technical solution, the adjustment mode of the rotating wheel 8 can be changed from manual adjustment to motor-driven adjustment.

[0038] The wedge angle α of the optical wedge can be selected according to actual working conditions.

[0039] The reduction ratio of the two spur gears can be selected according to actual working conditions.

[0040] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0041] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A double wedge adjustment device, characterized in that: It includes a mounting base plate, a first bearing mounting plate is symmetrically mounted on the mounting base plate, a second bearing mounting plate is mounted on the top of the two first bearing mounting plates, a first bearing is mounted in the first bearing mounting plate, a worm gear is mounted on the inner ring of the first bearing, an optical wedge is mounted on the worm gear, the worm gear is connected to the worm gear in a transmission manner, two ends of the worm gear are respectively connected to the mounting base plate and the second bearing mounting plate through second bearings, a first spur gear and a second spur gear are respectively nested in the ends of the worm gear passing through the second bearing mounting plate, and the gears are connected to the gears in a transmission manner.

2. A double wedge adjustment device according to claim 1, characterized in that: The first bearing is pressed and fixed by a first bearing pressing sheet installed on the first bearing mounting plate.

3. The double wedge adjustment device according to claim 1, characterized in that: The worm wheel is pressed and fixed by a first bearing pressing ring.

4. The double wedge adjustment device according to claim 1, characterized in that: Shaft shoulders are provided at both ends of the worm for pressing and fixing the second bearing.

5. The double wedge adjustment device according to claim 1, characterized in that: The first spur gear and the second spur gear are respectively provided with gear limiting parts which cooperate with the worm limiting parts on the worm.

6. The double wedge adjustment device according to claim 1, characterized in that: A rotating wheel is provided on the first spur gear or the second spur gear.

7. The double wedge adjustment device according to claim 6, characterized in that: The rotating wheel is transmission-connected to the driving motor.

8. The double wedge adjustment device according to claim 1, characterized in that: The optical wedge is provided with a wedge angle α.

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