Rotatable retractable transmission device

Abstract

The invention discloses a rotatable retractable transmission device which comprises a rotating motor, a retractable motor, an upper bearing seat, an upper support, a rotating limiting structure, a rotating shaft, a cross bearing, a lower bearing seat, a first radial bearing, a second radial bearing, a plane bearing and a lower support. The cross bearing is provided with a first hole in the first direction, the cross bearing is provided with a second hole in the second direction, the rotating shaft penetrates through the first hole, one end of the rotating shaft is connected with the rotating motor, the other end of the rotating shaft is connected with the load, the retractable motor is installed on the upper support or the upper bearing seat, and the cross bearing is installed between the upper bearing seat and the lower bearing seat. The rotation limiting structure is arranged on the rotating shaft and the cross bearing and used for limiting the maximum angle of axial rotation of the rotating shaft. The rotating motor is used for rotating driving of the rotating shaft, and the retracting and releasing motor is used for retracting and releasing of the transmission device. The rotatable retractable transmission device disclosed by the invention can adapt to sea surface and underwater environments, and can finish retractable and rotating actions at the same time.

Description

Technical Field

[0001] The present invention relates to the field of ship transmission equipment, and particularly to a rotatable retractable transmission device. Background Art

[0002] With the increasingly fierce competition in the ship market, new ship models adapted to various environmental conditions emerge in an endless stream, and various improved designs have emerged in the transmission devices involved. However, the transmission devices in the prior art cannot simultaneously perform retraction and rotation actions and cannot meet the usage requirements. Summary of the Invention

[0003] In view of the above defects or improvement requirements of the prior art, the present invention provides a rotatable retractable transmission device, which can adapt to the sea surface and underwater environments and can complete retraction and rotation actions.

[0004] To achieve the above object, the present invention adopts the following technical solutions.

[0005] In some embodiments, a rotatable retractable transmission device is provided, and the rotatable retractable transmission device includes: a rotation motor, a retraction and extension motor, an upper bearing seat, an upper bracket, a rotation limit structure, a rotating shaft, a cross bearing, a lower bearing seat, a first radial bearing, a second radial bearing, a planar bearing, and a lower bracket;

[0006] The cross bearing is provided with a first opening in a first direction and a second opening in a second direction, and the first direction is perpendicular to the second direction;

[0007] The rotating shaft passes through the first opening, one end is connected to the rotation motor, and the other end is connected to a load. The first radial bearing is arranged between the rotating shaft and the first opening;

[0008] The upper bearing seat is fixedly connected to the upper bracket, the lower bearing seat is fixedly connected to the lower bracket, the retraction and extension motor is installed on the upper bracket or the upper bearing seat. The upper bearing seat has a first bearing hole in the middle, the lower bearing seat has a second bearing hole in the middle, the cross bearing is installed between the upper bearing seat and the lower bearing seat, and the planar bearings are arranged between the cross bearing and the upper bearing seat and between the cross bearing and the lower bearing seat. The cross bearing has a first shaft section and a second shaft section on both sides in the second direction. The first shaft section is arranged in the first bearing hole, the second shaft section is arranged in the second bearing hole, and the second radial bearing is arranged between the first shaft section and the first bearing hole and between the second shaft section and the second bearing hole;

[0009] The rotation limiting structure is arranged on the rotating shaft and the cross bearing, and is used to limit the maximum angle of axial rotation of the rotating shaft around the axis of the rotating shaft;

[0010] The rotation motor is used for driving the rotation of the rotating shaft, and the retracting and extending motor is used for retracting and extending the transmission device.

[0011] In some embodiments, the circumferential rotation of the load is restricted by a flat key on the rotating shaft, and a locking nut is provided at one end of the rotating shaft connecting the load, and the locking nut is used to fix the load on the rotating shaft.

[0012] In some embodiments, the rotation limiting structure includes a limiting flange and a limiting block. The limiting block is fixedly connected to the rotating shaft, and the limiting flange is fixedly connected to the cross bearing;

[0013] The limiting flange has an inner hole, and the inner hole has a circumferentially extending groove. The limiting block is located in the groove, and the circumferential length of the limiting block is less than the circumferential length of the groove.

[0014] In some embodiments, the limiting flange is installed in two halves to limit the rotation angle of the rotating shaft. The limiting flange is fastened to the flange on the cross bearing by bolts and nuts and is installed on the cross bearing.

[0015] In some embodiments, the upper bearing seat is welded by three parts: a bearing seat body, a mounting plate and a rib plate. The mounting plate is provided with a first bolt hole and a second bolt hole. The first bolt hole is used for installing the retracting and extending motor, and the second bolt hole is used for fixedly connecting the upper bracket.

[0016] In some embodiments, the first radial bearing and the second radial bearing are composed of a metal steel sleeve and a lining of a polymer material.

[0017] In some embodiments, the plain bearing includes a substrate and a plurality of bearing plates. The substrate is annular, and a plurality of bearing plates are fixed to the substrate. The substrate is made of a metal material, and the bearing plates are made of a polymer material.

[0018] In some embodiments, each of the bearing plates is fan-shaped, and both side edges of each bearing plate have clamping edges. The substrate has a T-shaped buckle, and a card slot matching one of the bearing plates is formed between two adjacent T-shaped buckles. The clamping edges on both sides of the bearing plate match the buckles.

[0019] In some embodiments, the bearing plate has a plurality of screw holes, and the substrate has threaded holes matching the screw holes. The bearing plate is fixed to the substrate by screws.

[0020] In some embodiments, the second opening of the cross bearing has an internal spline groove that mates with the external spline of the retracting and extending motor.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: When installing the transmission device of the present invention, the upper and lower bearing seats are fixed to the upper and lower brackets by bolts and nuts. When the device performs retracting and extending actions, the cross bearing rotates around the second direction. When the device performs rotational actions, the load is fixed to the rotating shaft through the nut at the head end of the rotating shaft and the middle flat key, and the tail of the rotating shaft is connected to the rotating motor. When the rotating motor starts, it drives the load to rotate through the transmission of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a rotatable retractable transmission device according to an embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the limit structure of a rotatable retractable transmission device according to an embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the plain bearing structure of a rotatable retractable transmission device according to an embodiment of the present invention.

[0025] Description of reference numerals: Rotating motor 1, retracting and extending motor 2, upper bearing seat 3, upper bracket 4, rotation limit structure 5, rotating shaft 6, flat key 7, locking nut 8, cross bearing 9, lower bearing seat 10, first radial bearing 11, second radial bearing 12, plain bearing 13, lower bracket 14. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "lateral", "longitudinal", "top", "bottom", "inner", "outer", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. The interpretation of such terms should be from the perspective of those skilled in the art.

[0028] In the present invention, unless otherwise clearly defined and limited, terms such as "arranged", "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense from the perspective of those skilled in the art. For example, "connected" can be a fixed connection, a detachable connection, or an integral one; "joined" can be a direct connection or an indirect connection through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0030] Figure 1 It is a schematic diagram of the overall structure of a rotatable retractable transmission device according to an embodiment of the present invention.

[0031] Reference Figure 1 , in some embodiments, a rotatable retractable transmission device is provided. The rotatable retractable transmission device includes: a rotating motor 1, a retracting and extending motor 2, an upper bearing seat 3, an upper bracket 4, a rotation limiting structure 5, a rotating shaft 6, a cross bearing 9, a lower bearing seat 10, a first radial bearing 11, a second radial bearing 12, a plain bearing 13, and a lower bracket 14.

[0032] The cross bearing 9 is provided with a first opening in a first direction, and the cross bearing 9 is provided with a second opening in a second direction, and the first direction is perpendicular to the second direction. In some embodiments, the first direction is a direction parallel to the axis of the rotating shaft 6.

[0033] The rotating shaft 6 passes through the first opening, one end is connected to the rotating motor 1, and the other end is connected to a load, and the first radial bearing 11 is arranged between the rotating shaft 6 and the first opening.

[0034] The upper bearing block 3 is fixedly connected to the upper support 4, and the lower bearing block 10 is fixedly connected to the lower support 14. The retracting and extending motor 2 is installed on the upper support 4 or the upper bearing block 3. The upper bearing block 3 has a first bearing hole in the middle, and the lower bearing block 10 has a second bearing hole in the middle. The cross bearing 9 is installed between the upper bearing block 3 and the lower bearing block 10. There are plain bearings 13 between the cross bearing 9 and the upper bearing block 3 and between the cross bearing 9 and the lower bearing block 10. The cross bearing 9 has a first shaft section 91 and a second shaft section 92 on both sides in the second direction. The first shaft section 91 is arranged in the first bearing hole, and the second shaft section 92 is arranged in the second bearing hole. The second radial bearing 12 is arranged between the first shaft section and the first bearing hole and between the second shaft section and the second bearing hole.

[0035] The rotation limiting structure 5 is arranged on the rotating shaft 6 and the cross bearing 9 for limiting the maximum angle of axial rotation of the rotating shaft 6 around the axis of the rotating shaft 6.

[0036] The rotation motor 1 is used for driving the rotation of the rotating shaft 6, and the retracting and extending motor 2 is used for retracting and extending the transmission device.

[0037] In the embodiment of the present application, the rotating shaft is driven to rotate by the rotation motor, and the retracting and extending motor drives the retracting and extending of the entire transmission device, which can adapt to the sea surface and underwater environments and can complete the retracting and extending and rotation actions simultaneously.

[0038] Specifically, in some embodiments, the first bearing hole and the second bearing hole are coaxially arranged, and the axis direction is parallel to the second direction. Both the first shaft section and the second shaft section are cylindrical, and the outer circumferences are circular, respectively matching the first bearing hole and the second bearing hole. The second opening is arranged at the center of the first shaft section and / or the second shaft section and is coaxially arranged with the first shaft section and / or the second shaft section.

[0039] In some embodiments, the axis direction of the second opening is perpendicular to and intersects with the axis direction of the first opening.

[0040] In some embodiments, the circumferential rotation of the load is restricted by a flat key 7 on the rotating shaft 6. One end of the rotating shaft 6 connecting the load has a locking nut 8, and the locking nut 8 is used for fixing the load on the rotating shaft.

[0041] Figure 2 It is a schematic diagram of the limiting structure of the rotatable retractable transmission device according to an embodiment of the present invention.

[0042] Reference Figure 2, in some embodiments, the rotation limiting structure 5 includes a limiting flange 51 and a limiting block 52. The limiting block is fixedly connected to the rotating shaft 6, and the limiting flange is fixedly connected to the cross bearing 9;

[0043] The limiting flange has an inner hole with a circumferentially extending groove 511. The limiting block is located within the groove, and the circumferential length of the limiting block is less than the circumferential length of the groove.

[0044] In some embodiments, the limiting flange is installed in two halves to limit the rotation angle of the rotating shaft. The limiting flange is fastened to the flange on the cross bearing 9 through bolts and nuts and is installed on the cross bearing 9.

[0045] The transmission device further includes a copper bushing, which is installed inside the housing of the limiting flange 51 through screws to reduce the wear of the rotating shaft caused by axial transmission.

[0046] In some embodiments, the upper bearing seat 3 is welded by three parts: a bearing seat body 31, a mounting plate 32, and a rib plate 33. The mounting plate is provided with a first bolt hole 321 and a second bolt hole 322. The first bolt hole is used to install the retracting and extending motor, and the second bolt hole is used to fixedly connect to the upper bracket 4. In some embodiments, the lower bearing seat 10 is welded by three parts: a bearing seat body 101, a mounting plate 102, and a rib plate 103. The mounting plate is provided with a third bolt hole 1021, and the third bolt hole is used to fixedly connect to the lower bracket 14.

[0047] In some embodiments, the first radial bearing 11 and the second radial bearing 12 are composed of a metal steel sleeve and an inner lining of a polymer material.

[0048] In some embodiments, the plain bearing 13 includes a substrate 131 and a plurality of bearing plates 132. The substrate is annular, and the plurality of bearing plates are fixed to the substrate. The substrate is made of a metal material, and the bearing plates are made of a polymer material. Specifically, in the embodiments of the present application, the substrate is circular, and the plain bearing 13 as a whole is circular. During the retracting and extending operation, the cross bearing 9 as a whole rotates a certain angle around the second direction under the support of the plain bearing 13. Setting the plain bearing 13 as circular can provide support for the rotation action and reduce wear.

[0049] In some embodiments, each bearing plate is fan-shaped, and both side edges of each bearing plate have clamping edges 1321. The substrate has T-shaped buckles 1311, and a clamping groove matching with one bearing plate is formed between two adjacent T-shaped buckles. The clamping edges on both sides of the bearing plate match with the buckles.

[0050] In some embodiments, the bearing plate has a plurality of screw holes, and the substrate has threaded holes matching the screw holes. After the bearing plate is inserted into the card slot, the bearing plate is fixed to the substrate by screws 133.

[0051] In some embodiments, the second opening of the cross bearing has an internal spline groove, which is matched with the external spline of the retracting and extending motor. Specifically, the second opening is provided at the center of the first shaft section. An internal spline groove is provided on the inner peripheral surface of the second opening, and the external spline of the output shaft of the retracting and extending motor is matched with the internal spline groove of the second opening to achieve circumferential limit and transmission.

[0052] When the device is working, the retracting and extending motor rotates clockwise or counterclockwise around the second direction, driving the cross bearing to rotate around the central axis of the second opening, so that the rotating shaft rotates a certain angle and rotates to the working position to complete the extending action.

[0053] When performing the rotation action, the load is fixed to the rotating shaft by the rotating shaft head nut and the middle section flat key. The tail of the rotating shaft is connected to the rotating motor. When the rotating motor starts, it drives the load to rotate around the first direction, that is, the central axis of the first opening, through the transmission of the rotating shaft.

[0054] When the retracting action needs to be performed, the retracting and extending motor rotates in the opposite direction to the extending action to complete the retracting action of the rotating shaft.

[0055] Those skilled in the art can easily understand that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotatable and retractable transmission device, characterized in that: The rotatable retractable transmission device comprises: a rotating motor (1), a retractable motor (2), an upper bearing seat (3), an upper bracket (4), a rotation limiting structure (5), a rotating shaft (6), a cross bearing (9), a lower bearing seat (10), a first radial bearing (11), a second radial bearing (12), a plane bearing (13), and a lower bracket (14); The cross bearing (9) is provided with a first opening in a first direction, and the cross bearing (9) is provided with a second opening in a second direction, wherein the first direction is perpendicular to the second direction; The rotating shaft (6) passes through the first opening, one end of which is connected to the rotating motor (1) and the other end of which is connected to a load, and the first radial bearing (11) is arranged between the rotating shaft (6) and the first opening; The upper bearing seat (3) is fixedly connected to the upper bracket (4), and the lower bearing seat (10) is fixedly connected to the lower bracket (14). The transceiver motor (2) is mounted on the upper bracket (4) or the upper bearing seat (3). The upper bearing seat (3) has a first bearing hole in the middle, and the lower bearing seat (10) has a second bearing hole in the middle. The cross bearing (9) is mounted between the upper bearing seat (3) and the lower bearing seat (10). The cross bearing (9) and the upper bearing seat (3) and the lower bearing seat (10) both have the plane bearing (13). The cross bearing (9) has a first shaft section and a second shaft section on both sides of the second direction, respectively. The first shaft section is arranged in the first bearing hole, and the second shaft section is arranged in the second bearing hole. The second radial bearing (12) is arranged between the first shaft section and the first bearing hole and between the second shaft section and the second bearing hole. The rotation limiting structure (5) is arranged on the rotating shaft (6) and the cross bearing (9) and is used to limit the maximum angle of rotation of the rotating shaft (6) around the axial direction of the rotating shaft (6); The rotating motor (1) is used to drive the rotating shaft (6) to rotate, and the retracting and discharging motor (2) is used to retract and extend the transmission device.

2. The rotatable and retractable transmission device according to claim 1, characterized in that: The rotating shaft (6) limits the circumferential rotation of the load via a flat key (7); one end of the rotating shaft (6) connected to the load is provided with a locking nut (8); the locking nut (8) is used to fix the load on the rotating shaft.

3. The rotatable and retractable transmission device according to claim 2, characterized in that: The rotation limiting structure (5) comprises a limiting flange and a limiting block, wherein the limiting block is fixedly connected to the rotating shaft (6), and the limiting flange is fixedly connected to the cross bearing (9); The limiting flange has an inner hole, the inner hole has a groove extending in the circumferential direction, the limiting block is located in the groove, and the circumferential length of the limiting block is smaller than the circumferential length of the groove.

4. The rotatable and retractable transmission device according to claim 3, characterized in that: The limiting flange is installed in two halves to limit the rotation angle of the rotating shaft. The limiting flange is fastened to the flange on the cross bearing (9) by bolts and nuts and is installed on the cross bearing (9).

5. The rotatable and retractable transmission device according to claim 4, characterized in that: The upper bearing seat (3) is welded from three parts: a bearing seat body, a mounting plate and a rib plate. The mounting plate is provided with a first bolt hole and a second bolt hole. The first bolt hole is used for mounting the transceiver motor, and the second bolt hole is used for fixing and connecting the upper bracket (4).

6. The rotatable and retractable transmission device according to claim 5, characterized in that: The first radial bearing (11) and the second radial bearing (12) are composed of a metal steel sleeve and an inner lining made of polymer material.

7. The rotatable and retractable transmission device according to claim 6, characterized in that: The plane bearing (13) comprises a substrate and a plurality of bearing plates, the substrate is annular, the plurality of bearing plates are fixed to the substrate, the substrate is made of metal material, and the bearing plates are made of polymer material.

8. The rotatable and retractable transmission device according to claim 7, characterized in that: Each bearing piece is fan-shaped, and each bearing piece has a clamping edge on both side edges. The substrate has a T-shaped buckle, and a clamping groove matching one bearing piece is formed between two adjacent T-shaped buckles. The clamping edges on both sides of the bearing piece match the buckle.

9. The rotatable and retractable transmission device according to claim 8, characterized in that: The bearing sheet is provided with a plurality of screw holes, the substrate is provided with threaded holes matching the screw holes, and the bearing sheet is fixed to the substrate by screws.

10. The rotatable and retractable transmission device according to claim 9, characterized in that: The second opening of the cross bearing has an inner spline groove which cooperates with the outer spline of the transceiver motor.

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