A special achromatic focusing mechanism for astronomical telescope

Abstract

The utility model relates to astronomical observation equipment technical field, concretely is a kind of special achromatic focusing mechanism of astronomical telescope, it includes shell and adjusting mechanism;Three protrusions are provided on shell, the inside of shell is provided with three installation frame linearly distributed along shell axial direction, annular groove is provided on installation frame, the inside of annular groove is provided with lens;Adjusting mechanism includes the drive assembly being arranged in the inside of protrusion and the connecting assembly being arranged on installation frame, drive assembly includes the motor being arranged in the inside of protrusion, the threaded rod being connected with motor drive, and the moving ring being threadedly connected on threaded rod;Connecting assembly includes the fixed block being arranged on installation frame, the insert block being arranged on fixed block, and the bolt being penetrated through moving ring;Positioning slot for insert block embedding is provided on moving ring, bolt is penetrated through insert block and is threadedly connected.The utility model not only can move the position of lens and adjust stably, but also can reduce the complexity of adjusting mechanism, reduce the cost of equipment.

Description

Technical Field

[0001] This utility model relates to the field of astronomical observation equipment technology, and in particular to a despinning and focusing mechanism specifically for astronomical telescopes. Background Technology

[0002] Astronomical telescopes are the primary tools for observing celestial bodies and capturing information about them. A despinning focusing mechanism is a device used in professional astronomical telescopes, designed to solve the problem of telescope wobbling that can occur with traditional focusing mechanisms, thereby improving observation results.

[0003] Chinese Patent No. CN216561210U discloses a despinning focusing mechanism for a professional astronomical telescope, comprising a protective shell and a mounting groove. The mounting groove is located on the inner side of the protective shell, and three sets of mounting brackets are installed inside the mounting groove. A stepper motor is installed inside each mounting bracket. A controller is installed at the bottom of the protective shell. This despinning focusing mechanism, by incorporating a stepper motor, allows the rotor of the internal stepper motor to rotate via the controller structure at the bottom during use. This rotation directly moves and adjusts the internal lens distance along the stepper screw. The device moves along a sliding groove during adjustment, effectively ensuring the stability of the lens adjustment and preventing telescope shaking that could affect the observation results.

[0004] However, the above technical solution has the following shortcomings: the mechanism adjusts the distance of the internal lens by moving the motor along the lead screw. This connection method is not only structurally complex and requires regular inspection and maintenance of the connection between the motor and the lead screw, but also, since the astronomical telescope is often tilted during observation, the movement of the motor along the lead screw may not provide sufficient self-locking capability, which increases the complexity and cost of the system. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a despinning focusing mechanism specifically for astronomical telescopes. This mechanism can not only stably adjust the position of the lens, but also reduce the complexity of the adjustment mechanism and lower the cost of the equipment.

[0006] The present invention provides a despinning and focusing mechanism for an astronomical telescope, comprising a housing and an adjustment mechanism. The housing has three protrusions, and inside the housing are three mounting frames linearly distributed along the housing's axial direction. Each mounting frame has an annular groove, and a lens is disposed within the annular groove. The adjustment mechanism includes a drive assembly disposed inside the protrusions and a connecting assembly disposed on the mounting frames. The drive assembly includes a motor disposed inside the protrusion, a threaded rod driven by the motor, and a movable ring threadedly connected to the threaded rod. The connecting assembly includes a fixing block disposed on the mounting frame, an insert block disposed on the fixing block, and a bolt penetrating the movable ring. The movable ring has a positioning groove for the insert block to be inserted, and the bolt penetrates the insert block and is threadedly connected.

[0007] Preferably, a nut is threaded onto the bolt, and the nut and the movable ring abut against each other.

[0008] Preferably, the protrusion has two fixing plates inside, and the threaded rod is rotatably mounted on the fixing plates.

[0009] Preferably, the interior of the housing is provided with three sets of symmetrically distributed stable support seats, and the mounting frame and the stable support seats are slidably connected.

[0010] Preferably, the mounting frame is provided with a guide assembly, which includes two sliders symmetrically distributed on the mounting frame and a guide groove provided on the stable support base, with the sliders slidably disposed inside the guide groove.

[0011] Preferably, the housing is provided with a threaded opening, and an adjustment knob is threadedly connected to the threaded opening, with an eyepiece provided on the adjustment knob.

[0012] Preferably, a controller is provided on the housing, and the controller is provided with operation buttons. The controller and the motor are connected by electrical signals.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] This invention, through its adjustable mechanism, not only allows for distance adjustment of the lens inside the housing, effectively ensuring stability during lens adjustment, but also features a simple transmission structure, reducing system complexity and cost. Furthermore, it avoids the drawback of insufficient self-locking capability in the threaded engagement part when the astronomical telescope is tilted, thus possessing excellent practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the shell of this utility model;

[0017] Figure 3This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the drive component of this utility model;

[0019] Figure 5 This is a schematic diagram of the lens mounting structure of this utility model.

[0020] Reference numerals: 1. Housing; 2. Protrusion; 3. Motor; 4. Threaded rod; 5. Moving ring; 6. Mounting frame; 7. Lens; 8. Fixing block; 9. Insertion block; 10. Positioning groove; 11. Bolt; 12. Nut; 13. Stabilizing support; 14. Guide groove; 15. Slider; 16. Fixing plate; 17. Adjustment knob; 18. Eyepiece; 19. Threaded port; 20. Controller; 21. Operation button. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-5 As shown in the figure, the despinning and focusing mechanism for astronomical telescopes proposed in this embodiment includes a housing 1 and an adjustment mechanism; the housing 1 is provided with three protrusions 2, and the interior of the housing 1 is provided with three mounting frames 6 linearly distributed along the axial direction of the housing 1, the mounting frames 6 are provided with annular grooves, and the interior of the annular grooves is provided with lenses 7.

[0023] The adjustment mechanism includes a drive assembly disposed inside the protrusion 2 and a connecting assembly disposed on the mounting frame 6. The drive assembly includes a motor 3 disposed inside the protrusion 2, a threaded rod 4 driven by the motor 3, and a moving ring 5 threadedly connected to the threaded rod 4. Two fixing plates 16 are disposed inside the protrusion 2. The threaded rod 4 is rotatably mounted on the fixing plates 16. The fixing plates 16 are used to mount the threaded rod 4 to ensure the stability of the threaded rod 4 when it rotates.

[0024] like Figure 4 and Figure 5 As shown, the connecting assembly includes a fixing block 8 set on the mounting frame 6, an insert block 9 set on the fixing block 8, and a bolt 11 passing through the moving ring 5; the moving ring 5 is provided with a positioning groove 10 for the insert block 9 to be inserted, the bolt 11 passes through the insert block 9 and is threaded, and a nut 12 is threadedly connected to the bolt 11, and the nut 12 and the moving ring 5 abut against each other.

[0025] like Figure 3 and Figure 5 As shown, the housing 1 has three sets of symmetrically distributed stable support seats 13 inside. The mounting frame 6 and the stable support seats 13 are slidably connected. The mounting frame 6 is provided with a guide assembly, which includes two sliders 15 symmetrically distributed on the mounting frame 6 and a guide groove 14 provided on the stable support seat 13. The sliders 15 are slidably disposed inside the guide groove 14.

[0026] In this embodiment, when the position of the internal lens 7 needs to be adjusted, three motors 3 are started to control the movement of the three lenses 7. The motors 3 drive the threaded rod 4 to rotate. Since the moving ring 5 and the mounting frame 6 are fixedly connected and the slider 15 on the mounting frame 6 is slidably set in the guide groove 14, the threaded rod 4 and the moving ring 5 are screwed together. The moving ring 5 then drives the mounting frame 6 and the lens 7 to move along the guide groove 14. At the same time, the outer side of the mounting frame 6 is in contact with and slides against the stable support seat 13, ensuring the stability of the mounting frame 6 when it moves. The connection and transmission structure is simple, reducing the complexity and cost of the system. At the same time, the moving ring 5 and the mounting frame 6 can be quickly installed and disassembled by the provided insert 9, positioning groove 10 and bolt 11. The provided nut 12 further ensures the stability of the connection, so as to facilitate the maintenance and installation of the equipment. It has good practicality.

[0027] Example 2

[0028] like Figure 1 As shown in the figure, this embodiment proposes a de-rotation focusing mechanism for astronomical telescopes. Compared with the first embodiment, in this embodiment, the housing 1 is provided with a threaded port 19, and an adjustment knob 17 is threadedly connected to the threaded port 19. An eyepiece 18 is provided on the adjustment knob 17. The threaded port 19 can achieve the effect of fixing the device by rotating the outer adjustment knob 17. The eyepiece 18 facilitates the operator to observe through the inner lens 7. The housing 1 is provided with a controller 20, and the controller 20 is provided with an operation button 21. The controller 20 is electrically connected to the motor 3. The controller 20 is used to control the start and stop of the motor 3 to adjust the position of the lens 7.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A despinning focusing mechanism specifically for astronomical telescopes, characterized in that, include: The housing (1) has three protrusions (2) and three mounting frames (6) linearly distributed along the axial direction of the housing (1) are provided inside the housing (1). The mounting frames (6) have annular grooves and lenses (7) are provided inside the annular grooves. The adjustment mechanism includes a drive assembly disposed inside the protrusion (2) and a connection assembly disposed on the mounting frame (6). The drive assembly includes a motor (3) disposed inside the protrusion (2), a threaded rod (4) driven by the motor (3), and a moving ring (5) threadedly connected to the threaded rod (4). The connection assembly includes a fixing block (8) disposed on the mounting frame (6), an insert block (9) disposed on the fixing block (8), and a bolt (11) penetrating the moving ring (5). The moving ring (5) is provided with a positioning groove (10) for the insert block (9) to be inserted, and the bolt (11) penetrates the insert block (9) and is threadedly connected.

2. The despinning and focusing mechanism for an astronomical telescope according to claim 1, characterized in that, A nut (12) is threaded onto the bolt (11), and the nut (12) and the movable ring (5) abut against each other.

3. The despinning and focusing mechanism for an astronomical telescope according to claim 1, characterized in that, The protrusion (2) has two fixing plates (16) inside, and the threaded rod (4) is rotatably mounted on the fixing plates (16).

4. The despinning and focusing mechanism for an astronomical telescope according to claim 1, characterized in that, The housing (1) has three sets of symmetrically distributed stable support seats (13) inside, and the mounting frame (6) and the stable support seats (13) are slidably connected.

5. The despinning and focusing mechanism for an astronomical telescope according to claim 4, characterized in that, The mounting frame (6) is provided with a guide assembly, which includes two sliders (15) symmetrically distributed on the mounting frame (6) and a guide groove (14) provided on the stable support (13). The sliders (15) are slidably disposed inside the guide groove (14).

6. The despinning and focusing mechanism for an astronomical telescope according to claim 1, characterized in that, The housing (1) is provided with a threaded opening (19), and an adjustment knob (17) is threadedly connected to the threaded opening (19). An eyepiece (18) is provided on the adjustment knob (17).

7. The despinning and focusing mechanism for an astronomical telescope according to claim 1, characterized in that, A controller (20) is provided on the housing (1), and an operation button (21) is provided on the controller (20). The controller (20) and the motor (3) are electrically connected.

Images