WO2024259560A1 - 显微镜物镜切换装置及显微镜 - Google Patents
显微镜物镜切换装置及显微镜 Download PDFInfo
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- WO2024259560A1 WO2024259560A1 PCT/CN2023/101054 CN2023101054W WO2024259560A1 WO 2024259560 A1 WO2024259560 A1 WO 2024259560A1 CN 2023101054 W CN2023101054 W CN 2023101054W WO 2024259560 A1 WO2024259560 A1 WO 2024259560A1
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- lead worm
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- microscope
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/248—Base structure objective (or ocular) turrets
Definitions
- the present application relates to the technical field of microscopes, and in particular to a microscope objective lens switching device and a microscope.
- Microscopes have a very impressive magnification function, which usually includes multiple objective lenses and multiple objective lenses. Different magnifications can be achieved by switching different combinations according to different needs. Since the magnification is very large, a slight deviation will cause a huge deviation in the image, and a high-precision objective lens switching device is required at this time.
- objective lens switching devices There are currently two main structures of objective lens switching devices on the market: one is a worm gear transmission mechanism with non-adjustable accuracy. This mechanism has low accuracy, especially after a long period of use, the worm gear wears out, resulting in worse meshing and lower accuracy; the other is gear transmission, and is limited by a mechanical structure. This mechanism has high precision, but key components are easily damaged after long-term use and need to be replaced regularly.
- the purpose of the present application is to provide a microscope objective lens switching device and a microscope to meet the requirements of high precision and long service life.
- the present application provides a microscope objective lens switching device for switching the objective lens of the microscope, comprising a base, a rotation drive module fixed on the base, a transmission module connected to the rotation drive module, and a turntable fixedly connected to the transmission module and the objective lens respectively;
- the transmission module includes a shell fixed on the base, a coupling with one end detachably fixed to the output shaft of the rotation drive module, a double-lead worm fixedly connected to the other end of the coupling, and a worm wheel meshing with the double-lead worm, wherein the worm wheel is fixedly connected to the turntable; releasing the connection between the coupling and the output shaft and rotating the coupling can cause the double-lead worm to move axially to change the meshing clearance between the double-lead worm and the worm wheel.
- the tooth thickness of the double-lead worm gradually decreases from a side close to the coupling to a side away from the coupling, and the tooth surface lead of the double-lead worm away from the coupling is the same.
- one end of the coupling is threadedly connected to the output shaft.
- the microscope objective lens switching device further comprises a manual knob disposed on a side of the housing away from the rotation drive module, and the manual knob is threadedly connected to an end of the double-lead worm gear away from the coupling.
- the manual knob is provided with a first threaded hole threadedly matched with an end of the double-lead worm gear away from the coupling, and a second threaded hole connected to the first threaded hole, and the second threaded hole is threadedly connected with a stop screw, which passes through the second threaded hole and is used to fix the double-lead worm gear.
- the transmission module also includes a first bearing arranged on the side of the manual knob facing the dual-lead worm, a bearing sleeve fixedly connected to the inner side of the first bearing, and a flat key slidably connected to the bearing sleeve,
- the dual-lead worm is provided with a keyway corresponding to the flat key
- the inner side of the bearing sleeve is provided with a slide groove parallel to the axial direction of the dual-lead worm
- one side of the flat key is embedded in the keyway
- the other side of the flat key is arranged in the slide groove
- the length of the slide groove in the axial direction of the dual-lead worm is greater than the flat key
- the width of the slide groove and the width of the keyway are the same as the width of the flat key
- the manual knob is threadedly connected to the bearing sleeve.
- the transmission module also includes a second bearing sleeved on the side of the dual-lead worm gear close to the coupling and a retaining spring sleeved on the dual-lead worm gear and located on the side of the second bearing close to the coupling, the outer side of the second bearing is detachably fixedly connected to the housing, and the retaining spring is used to limit the axial movement of the second bearing along the dual-lead worm gear.
- the turntable is provided with a plurality of first connecting holes, and the first connecting holes are used to connect the objective lens.
- the base is provided with a plurality of second connection holes, and the second connection holes are used to connect the eyepiece system of the microscope.
- the present application also provides a microscope, comprising the microscope objective lens switching device as described above.
- the microscope objective lens switching device of the present application adopts a rotary drive module to adjust the turntable to achieve the purpose of switching the objective lens, and the adjustment accuracy is high; the structure of a double-lead worm and worm wheel is adopted, and the meshing clearance between the double-lead worm and the worm wheel can be quickly adjusted without replacing parts, and the accuracy can be quickly adjusted after the switching accuracy decreases, and the service life is greatly improved.
- FIG1 is a schematic structural diagram of a microscope objective lens switching device according to a first angle of the present application
- FIG2 is a schematic structural diagram of a microscope objective lens switching device according to a second angle of the present application.
- FIG3 is a schematic structural diagram of a microscope objective lens switching device according to a third angle of the present application.
- Fig. 4 is a cross-sectional view along the A-A direction in Fig. 3;
- FIG. 5 is an enlarged schematic diagram of point B in FIG. 4 .
- the microscope objective lens switching device of the embodiment of the present application is used to switch the objective lens of the microscope.
- the microscope objective lens switching device comprises a base 10 , a rotation driving module 20 , a transmission module 30 and a turntable 40 .
- the base 10 is used to connect the eyepiece system of the microscope
- the rotation drive module 20 is fixed on the base 10
- the rotation drive module 20 is connected with the transmission module 30
- the rotation drive module 20 is used to drive the transmission module 30
- the transmission module 30 is fixedly connected with the turntable 40
- the turntable 40 is also fixedly connected with the objective lens.
- the rotation drive module 20 is a stepping motor.
- the rotation drive module 20 drives the turntable 40 to rotate through the transmission module 30, and the turntable 40 drives the objective lens to rotate to achieve the purpose of switching the objective lens.
- the transmission module 30 includes a housing 31, a coupling 32, a double-lead worm 33 and a worm wheel 34.
- the housing 31 is fixed to the base 10.
- One end of the coupling 32 is detachably fixedly connected to the output shaft 21 of the rotation drive module 20, specifically, threadedly connected by a screw, and the other end of the coupling 32 is fixedly connected to the double-lead worm 33.
- the worm wheel 34 is meshed with the double-lead worm 33, and the worm wheel 34 is fixedly connected to the turntable 40.
- the objective lens switching principle of this embodiment is as follows: the rotation drive module 20 rotates and drives the double-lead worm 33 to rotate, the double-lead worm 33 drives the worm wheel 34 to rotate, and finally drives the turntable 40 to rotate.
- the microscope objective lens switching device of the embodiment of the present application can also quickly adjust the precision.
- the meshing clearance between the double-lead worm 33 and the worm wheel 34 is too large, the switching precision of the microscope objective lens switching device will decrease. At this time, it is necessary to adjust the meshing clearance between the double-lead worm 33 and the worm wheel 34 to improve the switching precision.
- the adjustment principle is as follows: release the connection between the coupling 32 and the output shaft 21, specifically loosen the screws of the coupling 32 and the output shaft 21, rotate the coupling 32, and the coupling 32 drives the double-lead worm 33 to move axially together to change the meshing clearance between the double-lead worm 33 and the worm wheel 34, until the coupling 32 is difficult to rotate, which means that the meshing clearance between the double-lead worm 33 and the worm wheel 34 is close to zero.
- the switching precision of the microscope objective lens switching device reaches the highest, and the coupling 32 and the output shaft 21 are re-fixed and connected to complete the adjustment.
- the microscope objective lens switching device of the embodiment of the present application adopts a rotary drive module 20 to adjust the turntable 40 to achieve the purpose of switching the objective lens, and the adjustment accuracy is high; the structure of the double-lead worm 33 and the worm wheel 34 is adopted, and the meshing clearance between the double-lead worm 33 and the worm wheel 34 can be quickly adjusted without replacing parts, and the accuracy can be quickly adjusted after the switching accuracy decreases, and the service life is greatly improved.
- the tooth thickness of the double-lead worm 33 gradually decreases from the side close to the coupling 32 to the side away from the coupling 32, the tooth surface lead of the double-lead worm 33 away from the coupling 32 is the same, and the tooth thickness of the worm wheel 34 is the same.
- the microscope objective lens switching device also includes a manual knob 50 disposed on a side of the housing 31 away from the rotation drive module 20, and the manual knob 50 is threadedly connected to one end of the double-lead worm 33 away from the coupling 32.
- the provision of the manual knob 50 can further improve the flexibility of the microscope objective lens switching device.
- the manual knob 50 is provided with a first threaded hole 51 threadedly matched with one end of the double-lead worm 33 away from the coupling 32, and a second threaded hole (not shown) connected to the first threaded hole 51, and the second threaded hole is threadedly connected with a stop screw (not shown), which passes through the second threaded hole and is used to fix the double-lead worm 33.
- the stop screw tightly fixes the part of the double-lead worm 33 inserted into the first threaded hole 51, achieving double fixation to prevent loosening.
- the stop screw is loosened, and the length of the double-lead worm 33 inserted into the first threaded hole 51 will change. After completing the precision adjustment, the stop screw can be tightened.
- the transmission module 30 further comprises a first bearing 35 disposed on the side of the manual knob 50 facing the dual-lead worm 33, a bearing sleeve 36 fixedly connected to the inner side of the first bearing 35, and a flat key 37 slidably connected to the bearing sleeve 36.
- the dual-lead worm 33 is provided with a keyway 331 corresponding to the flat key 37
- the inner side of the bearing sleeve 36 is provided with a slideway 361 parallel to the axial direction of the dual-lead worm 33
- one side of the flat key 37 is embedded in the keyway 331
- the other side of the flat key 37 is provided in the slideway 361
- the length of the slideway 361 in the axial direction of the dual-lead worm 33 is greater than the flat key 37
- the width of the slideway 361 and the width of the keyway 331 are the same as the width of the flat key 37
- the manual knob 50 is threadedly connected to the bearing sleeve 36.
- the first bearing 35 is an angular contact bearing.
- the transmission module 30 also includes a second bearing 38 sleeved on the side of the dual-lead worm 33 close to the coupling 32 and a retaining spring 39 sleeved on the dual-lead worm 33 and located on the side of the second bearing 38 close to the coupling 32.
- the outer side of the second bearing 38 is detachably fixedly connected to the housing 31, specifically detachably fixedly connected by screws.
- the retaining spring 39 is used to limit the axial movement of the second bearing 38 along the dual-lead worm 33.
- the second bearing 38 and the housing 31 are re-fixed.
- the second bearing 38 is a deep groove ball bearing.
- the rotating disk 40 is provided with a plurality of first connection holes 41, and the first connection holes 41 are used to connect the objective lens.
- the first connection holes 41 are provided with 5, and other numbers, such as 3, 4, etc., can also be provided according to actual needs.
- the base 10 is provided with a plurality of second connection holes 11, and the second connection holes 11 are used to connect the eyepiece system of the microscope.
- the second connection holes 11 are provided with 3, and other numbers, such as 2, 4, etc., can also be provided according to actual needs.
- An embodiment of the present application also provides a microscope, which includes the above-mentioned microscope objective lens switching device.
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Abstract
一种显微镜物镜切换装置及显微镜。显微镜物镜切换装置用于切换显微镜的物镜，包括底座（10）、固定于底座（10）上的旋转驱动模块（20）、与旋转驱动模块（20）连接的传动模块（30）以及分别与传动模块（30）和物镜固定连接的转盘（40）。传动模块（30）包括固定于底座（10）上的壳体（31）、一端与旋转驱动模块（20）的输出轴（21）可拆卸固定的联轴器（32）、与联轴器（32）的另一端固定连接的双导程蜗杆（33）、与双导程蜗杆（33）啮合配合的蜗轮（34），蜗轮（34）与转盘（40）固定连接；解除联轴器（32）和输出轴（21）之间的连接，旋转联轴器（32）能使双导程蜗杆（33）沿轴向运动以改变双导程蜗杆（33）与蜗轮（34）的啮合间隙，从而实现切换精度高且可快速调节精度。
Description
本申请涉及显微镜技术领域，尤其涉及显微镜物镜切换装置及显微镜。
显微镜具有非常可观的放大功能，其通常包括多个物镜和多个物镜，根据不同的需要切换不同的组合来实现不同的放大倍数。由于放大倍非常大，微小的偏差就会造成成像的巨大偏移，此时需要一种高精度的物镜切换装置。目前市面的物镜切换装置主要有两种结构：一种是精度不可调节的蜗轮蜗杆传动机构，该种机构精度不高，尤其在使用时间长后蜗轮蜗杆磨损导致啮合程度更差，精度更低；另一种是齿轮传动，并通过机械结构限位，该种机构具有高精度，但关键零部件长时间使用易损坏，需定期更换。
因此，有必要提供一种显微镜物镜切换装置及显微镜，以满足高精度和使用寿命长的要求。
本申请的目的在于提供一种显微镜物镜切换装置及显微镜，以满足高精度和使用寿命长的要求。
本申请的技术方案如下：
本申请提供一种显微镜物镜切换装置，用于切换显微镜的物镜，包括底座、固定于所述底座上的旋转驱动模块、与所述旋转驱动模块连接的传动模块以及与分别与所述传动模块和所述物镜固定连接的转盘；
所述传动模块包括固定于所述底座上的壳体、一端与所述旋转驱动模块的输出轴可拆卸固定的联轴器、与所述联轴器的另一端固定连接的双导程蜗杆、与所述双导程蜗杆啮合配合的蜗轮，所述蜗轮与所述转盘固定连接；解除所述联轴器和所述输出轴之间的连接，旋转所述联轴器能使所述双导程蜗杆沿轴向运动以改变所述双导程蜗杆与所述蜗轮的啮合间隙。
可选地，所述双导程蜗杆由靠近所述联轴器一侧到远离所述联轴器一侧的齿厚逐渐变小，所述双导程蜗杆远离所述联轴器一侧的齿面导程相同。
可选地，所述联轴器的一端与所述输出轴螺纹连接。
可选地，所述显微镜物镜切换装置还包括设于所述壳体远离所述旋转驱动模块一侧的手动旋钮，所述手动旋钮与所述双导程蜗杆远离所述联轴器的一端螺纹连接。
可选地，所述手动旋钮开设有与所述双导程蜗杆远离所述联轴器的一端螺纹配合的第一螺纹孔、与所述第一螺纹孔连通的第二螺纹孔，所述第二螺纹孔螺纹连接有止动螺丝，所述止动螺丝贯穿所述第二螺纹孔且用于固定所述双导程蜗杆。
可选地，所述传动模块还包括设于所述手动旋钮朝向所述双导程蜗杆一侧的第一轴承、与所述第一轴承内侧固定连接的轴承套以及与所述轴承套滑动连接的平键，所述双导程蜗杆对应所述平键开设有键槽，所述轴承套内侧开设有与所述双导程蜗杆轴向平行的滑槽，所述平键的一侧嵌设于所述键槽内，所述平键的另一侧设于所述滑槽内，所述滑槽在所述双导程蜗杆轴向的长度大于所述平键，所述滑槽的宽度和所述键槽的宽度与所述平键的宽度相同，所述手动旋钮与所述轴承套螺纹连接。
可选地，所述传动模块还包括套设于所述双导程蜗杆靠近所述联轴器一侧的第二轴承以及套设于双导程蜗杆且位于所述第二轴承靠近所述联轴器一侧的卡簧，所述第二轴承的外侧与所述壳体可拆卸固定连接，所述卡簧用于限制所述第二轴承沿所述双导程蜗杆轴向运动。
可选地，所述转盘开设有多个第一连接孔，所述第一连接孔用于连接所述物镜。
可选地，所述底座开设有若干个第二连接孔，所述第二连接孔用于连接所述显微镜的目镜系统。
本申请还提供一种显微镜，包括如上所述的显微镜物镜切换装置。
本申请的有益效果在于：本申请的显微镜物镜切换装置，采用旋转驱动模块来调节转盘以达到切换物镜的目的，调节精度高；采用双导程蜗杆和蜗轮的结构，在不用更换零部件的前提下就能快速调节双导程蜗杆与蜗轮的啮合间隙，能够在切换精度下降后快速调节精度，使用寿命大大提高。
图1为本申请的显微镜物镜切换装置第一角度的结构示意图；
图2为本申请的显微镜物镜切换装置第二角度的结构示意图；
图3为本申请的显微镜物镜切换装置第三角度的结构示意图；
图4为图3中沿A-A向的剖视图；
图5为图4中B处的放大示意图。
下面结合附图和实施方式对本申请作进一步说明。
如图1-图5所示，本申请实施例的显微镜物镜切换装置，用于切换显微镜的物镜。所述显微镜物镜切换装置包括底座10、旋转驱动模块20、传动模块30以及转盘40。
其中，所述底座10用于连接显微镜的目镜系统，所述旋转驱动模块20固定于所述底座10上，所述旋转驱动模块20与所述传动模块30连接，所述旋转驱动模块20用于驱动所述传动模块30，所述传动模块30与所述转盘40固定连接，所述转盘40还与所述物镜固定连接。在本实施例中所述旋转驱动模块20为步进电机。工作时，所述旋转驱动模块20通过所述传动模块30带动所述转盘40旋转运动，所述转盘40带动所述物镜旋转达到切换所述物镜的目的。
具体地，所述传动模块30包括壳体31、联轴器32、双导程蜗杆33以及蜗轮34。所述壳体31固定于所述底座10上。所述联轴器32的一端与所述旋转驱动模块20的输出轴21可拆卸固定连接，具体通过螺丝进行螺纹连接，所述联轴器32的另一端与所述双导程蜗杆33固定连接。所述蜗轮34与所述双导程蜗杆33啮合配合，所述蜗轮34与所述转盘40固定连接。
本实施例的物镜切换原理如下：所述旋转驱动模块20旋转驱动所述双导程蜗杆33旋转，所述双导程蜗杆33带动所述蜗轮34旋转，最终带动所述转盘40旋转。
本申请实施例的显微镜物镜切换装置还能快速地进行精度调节，当所述双导程蜗杆33与所述蜗轮34的啮合间隙过大时，所述显微镜物镜切换装置切换的精度就会下降，此时需要调节所述双导程蜗杆33与所述蜗轮34的啮合间隙来提高切换精度。调节原理如下：解除所述联轴器32和所述输出轴21之间的连接，具体松开所述联轴器32与所述输出轴21的螺丝，转动所述联轴器32，所述联轴器32带动所述双导程蜗杆33一起沿轴向移动，以改变所述双导程蜗杆33与所述蜗轮34的啮合间隙，直至所述联轴器32难以转动，则说明所述双导程蜗杆33与所述蜗轮34的啮合间隙接近零，此时所述显微镜物镜切换装置的切换精度达到最高，将所述联轴器32和所述输出轴21重新固定连接，完成调节。
本申请实施例的显微镜物镜切换装置，采用旋转驱动模块20来调节转盘40以达到切换物镜的目的，调节精度高；采用双导程蜗杆33和蜗轮34的结构，在不用更换零部件的前提下就能快速调节双导程蜗杆33与蜗轮34的啮合间隙，能够在切换精度下降后快速调节精度，使用寿命大大提高。
进一步地，所述双导程蜗杆33由靠近所述联轴器32一侧到远离所述联轴器32一侧的齿厚逐渐变小，所述双导程蜗杆33远离所述联轴器32一侧的齿面导程相同，所述蜗轮34的齿厚相同。
进一步地，所述显微镜物镜切换装置还包括设于所述壳体31远离所述旋转驱动模块20一侧的手动旋钮50，所述手动旋钮50与所述双导程蜗杆33远离所述联轴器32的一端螺纹连接。通过所述手动旋钮50的设置，能进一步提高所述显微镜物镜切换装置的灵活度。具体地，所述手动旋钮50开设有与所述双导程蜗杆33远离所述联轴器32的一端螺纹配合的第一螺纹孔51、与所述第一螺纹孔51连通的第二螺纹孔（图未示出），所述第二螺纹孔螺纹连接有止动螺丝（图未示出），所述止动螺丝贯穿所述第二螺纹孔且用于固定所述双导程蜗杆33。在正常使用过程中，所述止动螺丝紧紧固定所述双导程蜗杆33插入所述第一螺纹孔51的部分，实现双重固定，防止松动。在进行精度调节前，松开所述止动螺丝，所述双导程蜗杆33插入所述第一螺纹孔51的长度会改变，完成精度调节后，再将所述止动螺丝锁紧即可。
进一步地，所述传动模块30还包括设于所述手动旋钮50朝向所述双导程蜗杆33一侧的第一轴承35、与所述第一轴承35内侧固定连接的轴承套36以及与所述轴承套36滑动连接的平键37。所述双导程蜗杆33对应所述平键37开设有键槽331，所述轴承套36内侧开设有与所述双导程蜗杆33轴向平行的滑槽361，所述平键37的一侧嵌设于所述键槽331内，所述平键37的另一侧设于所述滑槽361内，所述滑槽361在所述双导程蜗杆33轴向的长度大于所述平键37，所述滑槽361的宽度和所述键槽331的宽度与所述平键37的宽度相同，所述手动旋钮50与所述轴承套36螺纹连接。在正常使用过程中，所述双导程蜗杆33、所述平键37、所述轴承套36、所述手动旋钮50不会发生相对运动，只会沿所述双导程蜗杆33的轴心一起旋转。其中，所述第一轴承35为角接触轴承。在进行精度调节前，需要松开所述止动螺丝，解除所述手动旋钮50与所述轴承套36的连接，解除所述联轴器32和所述输出轴21之间的连接；转动所述联轴器32，所述联轴器32带动所述双导程蜗杆33一起沿轴向移动，所述双导程蜗杆33带动所述平键37沿所述滑槽361滑动，具体沿所述滑槽361的长度方向滑动，所述轴承套36和所述第一轴承35只旋转运动不沿轴向移动，直至所述联轴器32难以转动，则说明所述双导程蜗杆33与所述蜗轮34的啮合间隙接近零，此时所述显微镜物镜切换装置的切换精度达到最高，将所述联轴器32和所述输出轴21重新固定连接，将所述手动旋钮50与所述轴承套36重新固定连接，将所述止动螺丝重新锁紧，完成调节。
进一步地，所述传动模块30还包括套设于所述双导程蜗杆33靠近所述联轴器32一侧的第二轴承38以及套设于双导程蜗杆33且位于所述第二轴承38靠近所述联轴器32一侧的卡簧39，所述第二轴承38的外侧与所述壳体31可拆卸固定连接，具体通过螺丝可拆卸固定连接，所述卡簧39用于限制所述第二轴承38沿所述双导程蜗杆33轴向运动。在进行精度调节前，还需要解除所述第二轴承38以及所述壳体31之间的连接，使所述第二轴承38与所述双导程蜗杆33一起沿轴向运动，完成精度调节后，将所述第二轴承38和所述壳体31重新固定。其中，所述第二轴承38为深沟球轴承。
进一步地，所述转盘40开设有多个第一连接孔41，所述第一连接孔41用于连接所述物镜。在本实施例中，所述第一连接孔41设有5个，也可以根据实际需求设置其他数量，如3个、4个等。
进一步地，所述底座10开设有若干个第二连接孔11，所述第二连接孔11用于连接所述显微镜的目镜系统。在本实施例中，所述第二连接孔11设有3个，也可以根据实际需求设置其他数量，如2个、4个等。
本申请实施例还提供一种显微镜，所述显微镜包括上述的显微镜物镜切换装置。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。
Claims (10)
- 一种显微镜物镜切换装置，用于切换显微镜的物镜，包括底座、固定于所述底座上的旋转驱动模块、与所述旋转驱动模块连接的传动模块以及与分别与所述传动模块和所述物镜固定连接的转盘，其特征在于：所述传动模块包括固定于所述底座上的壳体、一端与所述旋转驱动模块的输出轴可拆卸固定的联轴器、与所述联轴器的另一端固定连接的双导程蜗杆、与所述双导程蜗杆啮合配合的蜗轮，所述蜗轮与所述转盘固定连接；解除所述联轴器和所述输出轴之间的连接，旋转所述联轴器能使所述双导程蜗杆沿轴向运动以改变所述双导程蜗杆与所述蜗轮的啮合间隙。
- 根据权利要求1所述的显微镜物镜切换装置，其特征在于，所述双导程蜗杆由靠近所述联轴器一侧到远离所述联轴器一侧的齿厚逐渐变小，所述双导程蜗杆远离所述联轴器一侧的齿面导程相同。
- 根据权利要求1所述的显微镜物镜切换装置，其特征在于，所述联轴器的一端与所述输出轴螺纹连接。
- 根据权利要求1所述的显微镜物镜切换装置，其特征在于，所述显微镜物镜切换装置还包括设于所述壳体远离所述旋转驱动模块一侧的手动旋钮，所述手动旋钮与所述双导程蜗杆远离所述联轴器的一端螺纹连接。
- 根据权利要求4所述的显微镜物镜切换装置，其特征在于，所述手动旋钮开设有与所述双导程蜗杆远离所述联轴器的一端螺纹配合的第一螺纹孔、与所述第一螺纹孔连通的第二螺纹孔，所述第二螺纹孔螺纹连接有止动螺丝，所述止动螺丝贯穿所述第二螺纹孔且用于固定所述双导程蜗杆。
- 根据权利要求4所述的显微镜物镜切换装置，其特征在于，所述传动模块还包括设于所述手动旋钮朝向所述双导程蜗杆一侧的第一轴承、与所述第一轴承内侧固定连接的轴承套以及与所述轴承套滑动连接的平键，所述双导程蜗杆对应所述平键开设有键槽，所述轴承套内侧开设有与所述双导程蜗杆轴向平行的滑槽，所述平键的一侧嵌设于所述键槽内，所述平键的另一侧设于所述滑槽内，所述滑槽在所述双导程蜗杆轴向的长度大于所述平键，所述滑槽的宽度和所述键槽的宽度与所述平键的宽度相同，所述手动旋钮与所述轴承套螺纹连接。
- 根据权利要求1所述的显微镜物镜切换装置，其特征在于，所述传动模块还包括套设于所述双导程蜗杆靠近所述联轴器一侧的第二轴承以及套设于双导程蜗杆且位于所述第二轴承靠近所述联轴器一侧的卡簧，所述第二轴承的外侧与所述壳体可拆卸固定连接，所述卡簧用于限制所述第二轴承沿所述双导程蜗杆轴向运动。
- 根据权利要求1所述的显微镜物镜切换装置，其特征在于，所述转盘开设有多个第一连接孔，所述第一连接孔用于连接所述物镜。
- 根据权利要求1所述的显微镜物镜切换装置，其特征在于，所述底座开设有若干个第二连接孔，所述第二连接孔用于连接所述显微镜的目镜系统。
- 一种显微镜，其特征在于，包括如权利要求1~9任一项所述的显微镜物镜切换装置。
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