Lever type linkage locking device of T-shaped rotary table

Abstract

The utility model provides a T-shaped rotary table lever type linkage locking device. The T-shaped rotary table lever type linkage locking device comprises a locking lever assembly, a locking assembly and an unlocking assembly. The locking assembly comprises a stop sleeve and a stop piece. The T-shaped rotary table lever type linkage locking device has a locking state and an unlocking state. The unlocking assembly is installed on the orientation shell and used for switching the T-shaped rotary table lever type linkage locking device from the locking state to the unlocking state. According to the locking device, through the design of the locking lever assembly, one device can lock rotation of an orientation shaft in the T-shaped rotary table and can also lock a pitch shaft, and the technical effect which can only be achieved through two independent locking devices in the prior art can be achieved through a single device; the structure of the two-dimensional rotary table locking design is optimized, and the manufacturing and operating cost of the rotary table locking design is reduced.

Description

Technical Field

[0001] This utility model relates to the field of two-dimensional turntables, specifically to a lever-type linkage locking device for a T-shaped turntable. Background Technology

[0002] Two-dimensional rotary tables have numerous applications in industry, agriculture, automation, and aerospace. Based on their structural type, they are generally classified into T-type, U-type, and O-type. Although the structural types differ, they all essentially use a pitch axis and an azimuth axis that are orthogonal to each other as the rotation axis. Locking devices are typically designed as needed to protect the rotary table during transportation and movement.

[0003] In typical 2D rotary table locking designs, the pitch and azimuth axes are locked separately and independently, with corresponding independent unlocking actuators. In short, a 2D rotary table has two independent locking devices. Having two locking devices makes the product bulky and complex, doubling both manufacturing and operating costs. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a T-shaped turntable lever-type linkage locking device.

[0005] According to the present invention, a T-shaped turntable lever-type linkage locking device includes a locking lever assembly, a locking assembly, and an unlocking assembly;

[0006] The locking assembly includes a stop sleeve and a stop plate. The stop sleeve is mounted on the pitch housing of the T-shaped turntable, and the stop plate is mounted on the telescope shield of the T-shaped turntable. The upper end of the locking lever assembly can be matched with the stop sleeve, and the middle part of the locking lever assembly can be matched with the stop plate.

[0007] The azimuth axis of the T-shaped turntable is mounted inside the azimuth housing via bearings, and the azimuth axis is also fastened to the pitch housing; the locking lever assembly is connected to the azimuth housing.

[0008] The pitch axis of the T-shaped turntable is mounted in the pitch housing via bearings, and the pitch axis is also connected to the telescope shield.

[0009] The T-shaped turntable lever-type linkage locking device has a locked state and an unlocked state; the unlocking component is installed on the directional housing, and the unlocking component is used to switch the T-shaped turntable lever-type linkage locking device from the locked state to the unlocked state.

[0010] Preferably, the locking lever assembly includes a locking lever body, a pivot bracket, a locking screw, and a rotating structure;

[0011] The locking lever body is connected to the azimuth housing via a rotating shaft bracket, and the locking lever body is rotatably mounted on the rotating shaft bracket via a rotating structure.

[0012] The upper end of the locking lever body can cooperate with the stop sleeve, and a locking screw is installed in the middle, which can cooperate with the stop plate.

[0013] Preferably, the rotating structure includes a lever shaft and a ceramic bushing;

[0014] The upper part of the locking lever body is engaged with the lever shaft, and the lever shaft is mounted on the shaft bracket through a ceramic bushing.

[0015] Preferably, the bottom of the stop sleeve is provided with a groove structure; when the T-shaped turntable lever-type linkage locking device is in the locked state, the top of the locking lever body matches the groove structure.

[0016] Preferably, the stop plate is provided with a U-shaped groove; when the T-shaped turntable lever-type linkage locking device is in the locked state, the end of the locking screw matches the groove structure.

[0017] Preferably, the unlocking components include a first unlocking component and a second unlocking component;

[0018] When the T-shaped turntable lever-type linkage locking device is in the locked state, the second unlocking component matches the lower end of the locking lever body; when the T-shaped turntable lever-type linkage locking device is in the unlocked state, the second unlocking component separates from the locking lever body.

[0019] The first unlocking component is connected to the lower middle part of the locking lever body and is used to provide power for the T-shaped turntable lever-type linkage locking device to switch from the locked state to the unlocked state.

[0020] Preferably, the first unlocking component includes a bracket and an elastic element;

[0021] The elastic element is installed inside the bracket, and the end of the elastic element abuts against the lower middle part of the locking lever body;

[0022] The bracket is mounted on the azimuth housing.

[0023] Preferably, the first unlocking component further includes a preload plate and a preload screw.

[0024] The other end of the elastic element is in contact with one side of the pre-tightening plate, and the other side of the pre-tightening plate is in contact with the pre-tightening screw. The pre-tightening screw is threaded onto the bracket and is in contact with the pre-tightening plate.

[0025] Preferably, the elastic element is a spring structure.

[0026] Preferably, the second unlocking component includes a puller;

[0027] The pin puller is installed on the azimuth housing. When the T-shaped turntable lever-type linkage locking device is in the locked state, the pin puller is in the extended state and cooperates with the U-shaped groove at the lower end of the locking lever body.

[0028] When the T-shaped turntable lever-type linkage locking device is in the unlocked state, the pin puller is energized to perform the pin pulling action, and the pin is retracted; the pin puller separates from the locking lever body;

[0029] Under the action of the first unlocking component, the locking lever body separates from the stop sleeve, unlocking the azimuth axis. At the same time, the locking screw separates from the stop plate, unlocking the pitch axis.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] This invention, through the design of a locking lever assembly, enables a single device to lock both the rotation of the azimuth axis and the pitch axis of the T-shaped turntable. This achieves the technical effect that required two independent locking devices in the prior art, thus optimizing the structure of the two-dimensional turntable locking design and reducing the manufacturing and operating costs of the turntable locking design. Attached Figure Description

[0032] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 for Figure 1 A sectional view of the structure;

[0035] Figure 3 for Figure 1 A magnified view of a portion of the image;

[0036] Figure 4 This is a schematic diagram of the structure of the present invention in the unlocked state;

[0037] Figure 5 for Figure 4 A partial schematic diagram.

[0038] The diagram shows:

[0039] Detailed Implementation

[0040] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0041] This utility model provides a T-shaped turntable lever-type linkage locking device, such as Figures 1-5 As shown, the device includes a locking lever assembly 1, a locking assembly 2, and an unlocking assembly 3. The locking assembly 2 includes a stop sleeve 21 and a stop plate 22. The stop sleeve 21 is mounted on the pitch housing 4 of the T-shaped turntable, and the stop plate 22 is mounted on the telescope shield 8 of the T-shaped turntable. The azimuth axis 6 of the T-shaped turntable is mounted inside the azimuth housing 5 via a bearing and can rotate relative to the azimuth housing 5. The azimuth axis 6 is also securely connected to the pitch housing 4. The locking lever assembly 1 is connected to the azimuth housing 5. The azimuth housing 5 can be understood as a fixed end. The upper end of the locking lever assembly 1 can match the stop sleeve 21 to lock the azimuth axis 6 by preventing the pitch housing 4 from rotating. That is, in this invention, restricting the rotation of the pitch housing is equivalent to restricting the rotation of the azimuth axis.

[0042] The pitch axis 7 of the T-shaped turntable is rotatable relative to the pitch housing 4 within the T-shaped turntable via bearings. The pitch axis 7 is also connected to the telescope shield 8; the middle part of the locking lever assembly 1 can match the stop plate 22 to lock the pitch axis 7 by preventing the telescope shield 8 from rotating. That is, in this invention, restricting the rotational movement of the telescope shield 8 is equivalent to restricting the rotational movement of the pitch axis.

[0043] The T-shaped turntable lever-type linkage locking device has a locked state and an unlocked state; the unlocking component 3 is installed on the directional housing 5, and the unlocking component 3 is used to switch the T-shaped turntable lever-type linkage locking device from the locked state to the unlocked state.

[0044] The locking lever assembly 1 includes a locking lever body 11, a rotating shaft bracket 13, a locking screw 9, and a rotating structure. The locking lever is the main component responsible for locking. The locking lever body 11 is connected to the directional housing 5 via the rotating shaft bracket 13. The locking lever body 11 is rotatably mounted on the rotating shaft bracket 13 via the rotating structure. The upper end of the locking lever body 11 engages with a stop sleeve 21, and the middle section is fitted with the locking screw 9, which engages with a stop piece 22. The rotating structure includes a lever shaft 12 and a ceramic bushing 10. The upper part of the locking lever body 11 engages with the lever shaft, and the upper section of the locking lever body 11 has a through hole for connection with the lever shaft 12, allowing the locking lever body 11 to rotate around the lever shaft 12. The lever shaft 12 is mounted on the rotating shaft bracket 13 via the ceramic bushing 10. By adjusting the size of the ceramic bushing, a precise fit is achieved between the locking lever, the lever shaft, and the rotating shaft bracket, allowing for smooth rotation. The lever pivot and ceramic bushing are designed to provide rotational freedom for the locking lever. Therefore, in other preferred embodiments, they can be replaced with other components that provide rotational freedom.

[0045] The locking lever body 11 has a certain range of rotation; the two extreme ranges are called the locking position and the unlocking position, respectively. Figures 1-3 As shown, when the T-shaped turntable lever-type linkage locking device is in the locked state, the locking lever body 11 is in the locked position; as Figures 4-5 As shown, when the T-shaped turntable lever-type linkage locking device is in the unlocked state, the locking lever body 11 is in the unlocked position. At this time, the locking lever body 11 is separated from the stop sleeve 21, and the locking screw 9 is separated from the stop plate 22.

[0046] When the locking lever is in the locked position, the stop sleeve can engage with the top of the locking lever; the locking of the locating shaft is completed through the engagement of the locking lever and the stop sleeve. In a preferred embodiment, the top of the stop sleeve has a U-shaped groove, and the bottom of the stop sleeve 21 has a groove structure; when the T-shaped turntable lever-type linkage locking device is in the locked state, the top of the locking lever body 11 matches the groove structure.

[0047] When the locking lever is in the locked position, the locking screw engages with the stop plate to lock, thus locking the pitch axis. In a preferred embodiment, the stop plate 22 is provided with a U-shaped groove; when the T-shaped turntable lever-type linkage locking device is in the locked state, the end of the locking screw 9 matches the groove structure.

[0048] The unlocking component 3 includes a first unlocking component and a second unlocking component; when the T-shaped turntable lever-type linkage locking device is in the locked state, the second unlocking component matches the lower end of the locking lever body 11; when the T-shaped turntable lever-type linkage locking device is in the unlocked state, the second unlocking component separates from the locking lever body 11; the first unlocking component is connected to the lower middle part of the locking lever body 11 and is used to provide power for the T-shaped turntable lever-type linkage locking device to switch from the locked state to the unlocked state.

[0049] The first unlocking component includes a bracket 311 and an elastic element 312; in a preferred embodiment, the elastic element 312 is a spring structure and the bracket 311 is a spring bracket; in another preferred embodiment, the spring is used to rotate the lever from the locked position to the unlocked position and can be replaced by other components that provide one-time power.

[0050] The elastic element 312 is installed inside the bracket 311, and its outer end abuts against the lower middle part of the locking lever body 11. The bracket 311 is mounted on the oriented housing structure. The first unlocking assembly also includes a pre-tightening plate 313 and a pre-tightening screw 314. The inner end of the elastic element 312 contacts one side of the pre-tightening plate 313, and the other side of the pre-tightening plate 313 contacts the pre-tightening screw 314. The pre-tightening screw 314 is threaded onto the bracket 311 and contacts the pre-tightening plate 313. When the locking lever is in the locked position, the spring structure remains compressed, giving it a tendency to move from the locked position to the unlocked position. When the locking lever is in the unlocked position, the spring remains compressed. The preload of the spring in the compressed state can be adjusted by adjusting the pre-tightening screw. In a preferred embodiment, the spring bracket can be modified to a closed design, thus eliminating the need for the pre-tightening plate and pre-tightening screw.

[0051] The second unlocking component includes a pin puller 321. The pin puller 321 is installed on the azimuth housing 5. When the T-shaped turntable lever-type linkage locking device is in the locked state, the pin of the pin puller 321 is in the extended state and cooperates with the U-shaped groove at the lower end of the locking lever body 11, keeping the locking lever body 11 in the locked position. When the T-shaped turntable lever-type linkage locking device is in the unlocked state, the pin puller 321 is energized to perform the pin pull action, and the pin is retracted. Under the action of the elastic element 312, the locking lever body 11 rotates to the unlocked position, that is, under the action of the first unlocking component, the locking lever body 11 separates from the stop sleeve 21, the azimuth axis 6 is unlocked, and at the same time, the locking screw 9 separates from the stop piece 22, and the pitch axis 7 is unlocked.

[0052] It is worth noting that in the aerospace field, the complexity and harshness of application scenarios lead to maintenance difficulties and high maintenance costs, placing high demands on product reliability. Existing two-dimensional turntables on the market use two independent locking devices, forming a series system. In this system, a failure in either locking device will prevent the system from operating normally, significantly reducing its reliability. Therefore, the two independent locking devices on the market are not suitable for T-shaped two-dimensional turntables in the aerospace field. However, this invention, through the design of a locking lever assembly, allows a single device to lock both the rotation of the azimuth axis and the pitch axis of the T-shaped turntable. This achieves the same technical effect as the existing technology, which requires two independent locking devices, with a single device, improving system reliability and making it more suitable for the aerospace field.

[0053] The key feature of this invention is the linkage locking scheme achieved through a rotatable lever. It utilizes the lever principle to increase the unlocking torque of the unlocking device. This invention aims to solve the locking problem of T-shaped two-dimensional turntables in the aerospace field, improving the reliability of the locking device and facilitating miniaturization and weight reduction of the mechanism. This invention employs a lever-based linkage locking scheme, which, based on the lever principle, increases the unlocking force, significantly improving the reliability of the unlocking action.

[0054] In summary, the T-shaped two-dimensional turntable linkage locking device proposed in this patent uses a single locking mechanism to simultaneously lock the pitch and azimuth axes, requiring only one unlocking actuator to unlock both axes simultaneously. This reduces the complexity of the locking device, improves system reliability, and saves on manufacturing and operating costs. The lever-type linkage locking scheme, with its larger spring unlocking lever arm, significantly improves unlocking reliability.

[0055] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A T-type rotary table lever linkage locking device, characterized in that, It comprises a locking lever assembly (1), a locking assembly (2) and an unlocking assembly (3); The locking assembly (2) comprises a stop sleeve (21) and a stop sheet (22), the stop sleeve (21) is installed on the elevation shell (4) of the T-shaped turntable, the stop sheet (22) is installed on the telescope cover (8) of the T-shaped turntable; the upper end of the locking lever assembly (1) can match the stop sleeve (21); the middle part of the locking lever assembly (1) can match the stop sheet (22); The azimuth shaft (6) of the T-shaped turntable is installed in the azimuth shell (5) through a bearing, and is tightly connected with the elevation shell (4); the locking lever assembly (1) is connected with the azimuth shell (5); The elevation shaft (7) of the T-shaped turntable is installed in the elevation shell (4) through a bearing, and is connected with the telescope cover (8); The T-shaped turntable lever linkage locking device has a locking state and an unlocking state; the unlocking assembly (3) is installed on the azimuth shell (5), and is used for switching the T-shaped turntable lever linkage locking device from the locking state to the unlocking state.

2. The Turret Lever Locking Device according to claim 1, wherein, The locking lever assembly (1) comprises a locking lever body (11), a rotating shaft support (13), a locking screw (9) and a rotating structure; The locking lever body (11) is connected with the azimuth shell (5) through the rotating shaft support (13), and is rotatably installed on the rotating shaft support (13) through the rotating structure; The upper end of the locking lever body (11) can match the stop sleeve (21), and the middle part is provided with the locking screw (9), which can match the stop sheet (22).

3. The Turret Lever Locking Device of claim 2, wherein, The rotating structure comprises a lever rotating shaft (12) and a ceramic shaft sleeve (10); The upper middle part of the locking lever body (11) matches the lever rotating shaft, and the lever rotating shaft (12) is installed on the rotating shaft support (13) through the ceramic shaft sleeve (10).

4. The Turret Lever Locking Device of claim 2, wherein, The bottom of the stop sleeve (21) is provided with a groove structure; when the T-shaped turntable lever linkage locking device is in the locking state, the top of the locking lever body (11) matches the groove structure.

5. The Turret Lever Locking Device of claim 4, wherein, The stop sheet (22) is provided with a U-shaped groove; when the T-shaped turntable lever linkage locking device is in the locking state, the end of the locking screw (9) matches the groove structure.

6. The Turret Lever Locking Device of claim 2, wherein, The unlocking assembly (3) comprises a first unlocking assembly and a second unlocking assembly; When the T-shaped turntable lever linkage locking device is in the locking state, the second unlocking assembly matches the lower end of the locking lever body (11); when the T-shaped turntable lever linkage locking device is in the unlocking state, the second unlocking assembly is separated from the locking lever body (11); The first unlocking assembly is connected with the lower middle part of the locking lever body (11), and is used for providing power when the T-shaped turntable lever linkage locking device is switched from the locking state to the unlocking state.

7. The Turret Lever Locking Device of claim 6, wherein, The first unlocking assembly comprises a support (311) and an elastic member (312). The elastic member (312) is mounted inside the bracket (311), and the end of the elastic member (312) is in abutment with the middle lower part of the locking lever body (11); The bracket (311) is mounted on the azimuth housing (5).

8. The Turret Lever Locking Device of claim 7, wherein, The first unlocking assembly further comprises a pre-tightening sheet (313) and a pre-tightening screw (314) The other end of the elastic member (312) is in contact with one side of the pre-tightening sheet (313), and the other side of the pre-tightening sheet (313) is in contact with the pre-tightening screw (314), which is mounted on the bracket (311) through threads and is in contact with the pre-tightening sheet (313).

9. The Turret Lever Locking Device of claim 7, wherein, The elastic member (312) is a spring structure.

10. The Turret Lever Locking Device of claim 1, wherein, The second unlocking assembly comprises a pin puller (321); The pin puller (321) is mounted on the azimuth housing (5), and when the T-shaped turntable lever linkage locking device is in the locked state, the pin of the pin puller (321) is in the extended state and cooperates with the U-shaped groove at the lower end of the locking lever body (11); When the T-shaped turntable lever linkage locking device is in the unlocked state, the pin puller (321) performs the pin pulling action under the power supply, and the pin is retracted; the pin puller (321) is separated from the locking lever body (11); Under the action of the first unlocking assembly, the locking lever body (11) is separated from the stop sleeve (21), the azimuth shaft (6) is unlocked, at the same time, the locking screw (9) is separated from the stop sheet (22), and the pitch shaft (7) is unlocked.

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