Gear shifting device and ship propeller

Abstract

The utility model discloses a gear shifting device and a marine propeller, and relates to the technical field of marine machinery, the gear shifting device comprises a clamping base, a rotary mounting seat is rotatably arranged on the clamping base, a plurality of clamping parts are arranged on the clamping base, and a gear clamping frame is rotatably arranged on the rotary mounting seat. The free end of the gear clamping frame can move to different clamping parts and be clamped with the clamping parts when the rotary mounting seat rotates relative to the clamping base, and when the included angle between the gear clamping frame and the rotary mounting seat changes and is larger than a preset angle, the free end of the gear clamping frame can span to any adjacent clamping part; a locking piece is slidably arranged on the rotary mounting base, when the locking piece slides to a preset position, one end of the locking piece can abut against the free end of the gear clamping frame, and the end, abutting against the gear clamping frame, of the locking piece is slidably connected with the rotary mounting base so as to limit the change of the included angle between the gear clamping frame and the rotary mounting base; therefore, the free end of the gear clamping frame is limited to span the clamping part.

Description

Technical Field

[0001] The utility model relates to the technical field of marine machinery, in particular to a gear-adjusting device and a marine propeller. Background Art

[0002] The outboard motors of small and medium-sized vessels such as speedboats and rubber boats mainly include a main engine, a control device and a power source. The main engine includes a gear shifting device and a propeller. When using a marine propeller, the main engine is fixed to the vessel through the gear shifting device, and the propeller is located underwater. The propeller rotates to generate propulsion, thereby pushing the vessel forward. The user changes the thrust and direction of the propeller through the control device to drive the vessel; when the vessel is running on the water, the marine propeller is fixed to the vessel through the gear shifting device, and the propeller is placed underwater to push the vessel forward. At this time, the marine propeller is in an underwater posture; when the marine propeller stops working, the marine propeller needs to be lifted up through the gear shifting device to put the marine propeller in an above-water posture.

[0003] When a marine propeller is installed on a vessel, the angle between the long axis of the marine propeller and the vertical plane in the vertical plane can be called the inclination angle of the marine propeller. The inclination angle will affect the maximum propulsion efficiency of the marine propeller and thus affect the maximum speed of the vessel. The same marine propeller has different inclination angles for achieving maximum propulsion efficiency when matched with different vessels, and the same marine propeller has different inclination angles for achieving maximum propulsion efficiency with the same vessel in different wind and wave environments. Therefore, the marine propeller also needs to facilitate adjustment of the inclination angle during use to be compatible with different vessels or usage environments. Therefore, it is necessary to design a gear adjustment device that can adjust the inclination angle of the marine propeller and has a stable structure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a gear adjustment device and a marine propeller.

[0005] The utility model is realized by the following technical solutions:

[0006] A gear shifting device, comprising a clamping base, a rotating mounting seat rotatably provided on the clamping base, a plurality of clamping parts provided on the clamping base, a gear clamping frame rotatably provided on the rotating mounting seat, a free end of the gear clamping frame being able to move to different clamping parts and engage with the clamping parts when the rotating mounting seat rotates relative to the clamping base, and when the angle between the gear clamping frame and the rotating mounting seat changes and is greater than a predetermined angle, the free end of the gear clamping frame being able to cross over to any adjacent clamping part;

[0007] A locking piece is slidably provided on the rotating mounting seat. When the locking piece slides to a predetermined position, one end of the locking piece can abut against the free end of the gear card frame, and the end of the locking piece abutting against the gear card frame is slidably connected to the rotating mounting seat to limit the change in the angle between the gear card frame and the rotating mounting seat, thereby limiting the free end of the gear card frame from crossing the locking portion.

[0008] As a further improvement of the present invention, a gear shaft is provided at the free end of the gear bracket, and the gear shaft is used to engage with the engaging portion. A locking member is provided with a slot at one end close to the free end of the gear bracket, and the slot is used to abut and engage the gear shaft when the locking member slides to a predetermined position, so as to limit the gear shaft from sliding out of the opening of the engaging portion.

[0009] As a further improvement of the utility model, a sliding seat is provided on the side of the rotating mounting seat away from the free end of the gear holder, and the locking member can be slidably set on the sliding seat along a predetermined direction. A locking mechanism is provided on the sliding seat for locking the locking member when the locking member slides to a predetermined position.

[0010] As a further improvement of the utility model, the locking mechanism includes a spring plate arranged on the sliding seat, a locking end is provided on the spring plate, and two locking grooves matching with the locking end are provided on the side wall of the locking member, and the two locking grooves are spaced apart by a preset distance.

[0011] As a further improvement of the utility model, a group of support frames are arranged on one side of the rotating mounting seat close to the free end of the gear card frame, a guide rod is arranged between the group of support frames, and a guide slide hole is arranged on one end of the locking piece close to the free end of the gear card frame, and the guide rod is located in the guide slide hole.

[0012] As a further improvement of the present invention, the locking portion includes a first locking position and a second locking position, and the gear locking frame can move to engage with the first locking position and the second locking position respectively during the rotation of the rotating mounting seat relative to the clamping base; the first locking position corresponds to the underwater posture of the marine propeller, and the second locking position corresponds to the above-water posture of the marine propeller.

[0013] As a further improvement of the present invention, there are multiple first clamping positions, and when the gear clamping frame is engaged in different first clamping positions, the marine propeller has different inclination angles relative to the vertical plane, and a spacing portion is provided between two adjacent first clamping positions; when the angle between the gear clamping frame and the clamping base changes and is greater than a preset angle, the free end of the gear clamping frame can span any adjacent said spacing portion.

[0014] As a further improvement of the present invention, the gear card bracket and the rotating mounting seat can be rotatably connected via a rotating shaft, and a torsion spring is arranged on the rotating shaft, one end of the torsion spring is connected to the gear card bracket, and the other end of the torsion spring is connected to the rotating mounting seat, and the torsion spring is used to drive the gear card bracket to rotate when the rotating mounting seat rotates relative to the clamping base.

[0015] As a further improvement of the present invention, a limiting mechanism is provided on the rotating mounting seat for limiting the gear holder from disengaging from the second position, the limiting mechanism includes a pin shaft hole opened on the clamping base and located on one side of the second position, a limiting rod is slidably provided in the pin shaft hole, the limiting rod is used to resist the free end of the gear holder located in the second position, an elastic mechanism is provided between the limiting rod and the clamping base, the elastic mechanism applies a force to the limiting rod to extend into the pin shaft hole or prevent it from extending out of the pin shaft hole, so that the inner end of the limiting rod maintains a state of resisting the free end of the gear holder located in the second position.

[0016] Based on the same concept, the utility model also proposes a marine propeller, which includes the gear adjustment device as described above.

[0017] The beneficial effects of the utility model are as follows: in the utility model, relative rotation can occur between the clamping base and the rotating mounting seat, and a gear clamp is provided, and the gear clamp cooperates with the clamping part to realize gear adjustment, so that the utility model patent can control the underwater posture and the above-water posture of the marine propeller, and control the inclination angle of the marine propeller to be compatible with different ships or use environments; at the same time, the gear clamp is locked by a locking member, so that after the gear is adjusted, the gear clamp is clamped and fixed between the rotating mounting seat, thereby locking the gear of the marine propeller, so that the gear adjustment device structure in the utility model patent is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a detailed description of the preferred implementation examples of the present invention with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0019] Figure 1 It is a schematic diagram of the structure of a utility model embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the clamping base with one side removed in the embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the rotating mounting seat in the utility model embodiment;

[0022] Figure 4 This is a schematic diagram of the structure of the clamping base in the utility model embodiment;

[0023] Figure 5 It is a schematic diagram of the locking member structure in an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below based on the accompanying drawings and implementation cases.

[0025] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0026] refer to Figures 1 to 5 The embodiment of the utility model discloses a marine propeller, wherein the marine propeller is a propulsion engine installed on the outside of the hull, usually suspended on the outside of the transom by its gear adjustment device, and is widely used in small and medium-sized ships in the fields of fisheries, commercial operations, and government law enforcement. Marine propellers can be divided into above-water and underwater postures based on the use posture. The marine propeller and its gear adjustment device structure provided by the present application can quickly change the tilt angle of the marine propeller when it is in the underwater posture, and is easy to operate and has a reliable structure.

[0027] In this embodiment, the marine propulsion device includes but is not limited to a gear shifting device and a marine propulsion device arranged on the gear shifting device, wherein the marine propulsion device is a prior art and can provide propulsion power for the marine propulsion device. The present patent application does not improve the marine propulsion device, but improves the gear shifting device. Therefore, the detailed structure of the marine propulsion device is not described here. When the marine propulsion device is moving in the water, the marine propulsion device is fixed to the outside of the ship's side through the gear shifting device and placed underwater to propel the ship forward. At this time, the marine propulsion device is in an underwater posture. When it is necessary to dock and the ship travels to an area with shallow water depth, or when the marine propulsion device is not used, the marine propulsion device needs to be lifted to make the marine propulsion device in an above-water posture.

[0028] When the marine propeller is installed on a vessel, the angle between the long axis of the marine propeller and the vertical plane in the vertical plane can be called the inclination angle of the marine propeller. The inclination angle will affect the maximum propulsion efficiency of the marine propeller and thus affect the maximum speed of the vessel. The inclination angles at which the same marine propeller can achieve maximum propulsion efficiency are different when matched with different vessels. The inclination angles at which the same marine propeller and the same vessel can achieve maximum propulsion efficiency in different wind and wave environments are also different. Therefore, the marine propeller also needs to facilitate adjustment of the inclination angle during use to be compatible with different ships or usage environments.

[0029] In this embodiment, a gear-adjusting device is provided on the marine propeller, and the inclination angle of the marine propeller can be adjusted by the gear-adjusting device. The following is a description of the specific structure of the gear-adjusting device in this application.

[0030] The gear-adjusting device comprises a clamping base 1, on which a clamping device is arranged, and the clamping base 1 is detachably connected to the side or transom of a vessel through the clamping device. Specifically, as shown in the figure, the clamping base 1 is provided with two, and the clamping base 1 comprises a clamping portion 101, a hinged portion 102 arranged at one end of the clamping portion 101, and a gear portion 103 arranged at the other end of the hinged portion 102, and the gear portion 103 is connected to the The clamping parts 101 are arranged relatively to each other, and a preset distance is set between the shift part 103 and the clamping part 101, so as to be installed on the side of the ship or the stern board, wherein a clamping member 111 is provided on the clamping part 101 through a threaded connection, and one end of the clamping member 111 passes through the clamping part 101 and cooperates with the shift part 103 to clamp the side of the ship or the stern board; the clamping member 111 is adjusted by rotating to clamp or release the side of the ship or the stern board.

[0031] A rotatable mounting seat 2 is rotatably provided between the two clamping bases 1 (at the hinged portion 102). Specifically, one end of the rotatable mounting seat 2 is rotatably connected to the gear portion 103 via a rotating shaft. In the present embodiment, the rotatable mounting seat 2 is used to install a marine propulsion device, and the inclination angle of the marine propeller is controlled and adjusted by rotating the rotatable mounting seat 2.

[0032] The clamping base 1 is provided with a plurality of clamping parts 4, and the rotating mounting seat 2 is rotatably provided with a gear clamping frame 5, and the free end of the gear clamping frame 5 can move to different clamping parts 4 and engage with the clamping parts 4 when the rotating mounting seat 2 rotates relative to the clamping base 1, and when the angle between the gear clamping frame 5 and the rotating mounting seat 2 changes and is greater than a predetermined angle, the free end of the gear clamping frame 5 can cross to any adjacent clamping part 4; specifically, the clamping part 4 includes a first clamping position 401 and a second clamping position 402, and the gear clamping frame 5 During the rotation of the rotating mounting seat 2 relative to the clamping base 1, it can move to engage with the first clamping position 401 and the second clamping position 402 respectively. The first clamping position 401 corresponds to the underwater posture of the marine propeller to propel the ship forward; the second clamping position 402 corresponds to the above-water posture of the marine propeller. When the marine propeller is in an idle state, the marine propeller can be controlled to rotate and lift off the water surface to present an above-water posture, that is, the above-water posture of the marine propeller can prevent it from being corroded or affected by underwater organisms, microorganisms, etc. for a long time underwater, thereby extending the life of the marine propeller.

[0033] Wherein the number of the first clamping positions 401 is multiple, in this embodiment, the first clamping positions 401 may include four gear positions 401a, 401b, 401ca, and 401d, each gear position corresponds to a different angle between the marine propeller and the clamping portion 101, and a spacing portion 4011 (including 4011a, 4011b, and 4011c) is provided between two adjacent first clamping positions 401; when the angle between the gear clamping frame 5 and the clamping base 1 changes and is greater than a preset angle, the free end of the gear clamping frame 5 can span any adjacent spacing portion 4011; so that when the gear clamping frame 5 is engaged with different first clamping positions 401, the marine propeller has different inclination angles relative to the vertical plane, so as to achieve adjustment of the underwater posture of the marine propeller, so that the marine propeller has a better propulsion effect and ensures propulsion efficiency.

[0034] When the gear holder 5 is locked into the first locking position 401, the gear holder 5 or the rotating mounting seat 2 is subjected to a predetermined external force, which will cause the rotation angle between the rotating mounting seat 2 and the gear holder 5 to change, thereby causing the gear holder 5 to freely cross the locking portion 4, changing the gear position, affecting the propulsion effect of the marine propeller, and reducing the propulsion efficiency; therefore, it is necessary to lock the gear holder 5 so that the rotation angle between the gear holder 5 and the rotating mounting seat 2 is fixed, thereby limiting the gear holder 5 from freely crossing the locking portion 4.

[0035] Specifically in the present embodiment, a locking member 6 is slidably provided on the rotating mounting seat 2. When the locking member 6 slides to a predetermined position, one end of the locking member 6 can abut against the free end of the gear holder 5, and the end of the locking member 6 abutting against the gear holder 5 is slidably connected to the rotating mounting seat 2 to limit the change in the angle between the gear holder 5 and the rotating mounting seat 2, thereby limiting the free end of the gear holder 5 from crossing the locking portion 4; a gear shaft 7 is provided at the free end of the gear holder 5, and the gear shaft 7 is used to engage with the locking portion 4, and the locking member 6 is provided near one end of the free end of the gear holder 5 There is a card slot 3, and the card slot 3 is used to abut and engage the gear shaft 7 when the locking member 6 slides to a predetermined position, so as to limit the gear shaft 7 from sliding out of the opening of the card portion 4; when the gear shaft 7 is locked into the first card position 401, the locking member 6 can be controlled to slide a predetermined distance in a predetermined direction on the rotating mounting seat 2, so that the card slot 3 abuts against the gear shaft 7. At this time, the gear shaft 7 is restricted in the first card position 401, that is, at this time, the angle between the gear card frame 5 and the rotating mounting seat 2 is limited. At this time, the gear shaft 7 can no longer cross the first card position 401, that is, the gear is locked.

[0036] A sliding seat 8 is provided on one side of the rotating mounting seat 2 away from the free end of the gear holder 5. In addition, in order to facilitate the user to slide the locking member 6, an extension plate 601 is provided on one end of the locking member 6 close to the sliding seat 8 to facilitate the user's control. The locking member 6 can be slidably arranged on the sliding seat 8 along a predetermined direction. A locking mechanism is provided on the sliding seat 8 to lock the locking member 6 when the locking member 6 slides to a predetermined position; the locking mechanism includes a spring piece 801 provided on the sliding seat 8, and the spring piece 801 can be elastically deformed within a certain range. 1 is provided with a locking end head 802, and the side wall of the locking member 6 is provided with two locking grooves 602 matched with the locking end head 802, and the two locking grooves 602 are spaced apart by a preset distance, and the preset distance is equal to the predetermined distance of sliding in the predetermined direction; when the locking member 6 is slid, the locking end head 802 can first overcome the effect of the spring piece 801 and disengage from the locking groove 602, until the locking member 6 slides in the predetermined direction by a predetermined distance, and the locking end head 802 encounters the next locking groove 602, at which time, under the effect of the spring piece 801, the locking end head 802 is reset.

[0037] The end of the locking piece 6 that presses against the gear frame 5 is slidably connected to the rotating mounting seat 2. Specifically, a group of support frames 9 are provided on the side of the rotating mounting seat 2 close to the free end of the gear frame 5, and a guide rod 10 is provided between the group of support frames 9. A guide slide hole 603 is provided at one end of the locking piece 6 close to the free end of the gear frame 5, and the guide rod 10 is slidably connected and located in the guide slide hole 603, so that when the locking piece 6 presses against the gear frame 5, the rotating mounting seat 2 and the gear frame 5 can maintain a preset angle.

[0038] Furthermore, the gear card rack 5 and the rotating mounting seat 2 can be rotatably connected via a rotating shaft, and a torsion spring 11 is provided on the rotating shaft, one end of the torsion spring 11 is connected to the gear card rack 5, and the other end of the torsion spring 11 is connected to the rotating mounting seat 2, and the torsion spring 11 is used to drive the gear card rack 5 to rotate when the rotating mounting seat 2 rotates relative to the clamping base 1, and the torsion spring 11 applies a force to the gear card rack 5 so that the free end of the gear card rack 5 remains close to the rotating mounting seat 2 or prevents the free end of the gear card rack 5 from moving away from the rotating mounting seat 2.

[0039] The rotating mounting seat 2 is provided with a limiting mechanism for limiting the gear holder 5 from disengaging from the second clamping position 402. The limiting mechanism includes a pin shaft hole opened on the clamping base 1 and located on one side of the second clamping position 402. A limiting rod 12 is slidably provided in the pin shaft hole. The limiting rod 12 is used to abut against the free end of the gear holder 5 located in the second clamping position 402. An elastic mechanism is provided between the limiting rod 12 and the clamping base 1. The elastic mechanism exerts a function on the limiting rod 12 to extend into the pin shaft hole or prevent it from extending out of the pin shaft hole. The force is used for the inner end of the limit rod 12 to maintain the state of pressing against the free end of the gear holder 5 located in the second locking position 402. The elastic mechanism is a compression spring, which is sleeved on the limit rod 12, and one end of the compression spring presses against the side wall of the limit rod 12 and the other end presses against the clamping base 1, and the other end of the limit rod 12 passes through the clamping base 1 and is connected with a pull ring 13. In addition, a guide plate 14 is also provided on the inner wall of one of the clamping bases 1 to guide the free end of the gear holder 5 that slides out from the second locking position 402 to the first locking position 401.

[0040] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

Claims

1. A gear shifting device, comprising a clamping base (1), wherein a rotatable mounting seat (2) is rotatably provided on the clamping base (1), characterized in that: The clamping base (1) is provided with a plurality of locking portions (4), and the rotating mounting seat (2) is rotatably provided with a gear clamping frame (5), and the free end of the gear clamping frame (5) can move to different locking portions (4) and engage with the locking portions (4) when the rotating mounting seat (2) rotates relative to the clamping base (1); when the angle between the gear clamping frame (5) and the rotating mounting seat (2) changes and is greater than a predetermined angle, the free end of the gear clamping frame (5) can cross over to any adjacent locking portion (4); A locking member (6) is slidably provided on the rotating mounting seat (2); when the locking member (6) slides to a predetermined position, one end of the locking member (6) can abut against the free end of the gear holder (5); and the end of the locking member (6) abutting against the gear holder (5) is slidably connected to the rotating mounting seat (2) to limit the change in the angle between the gear holder (5) and the rotating mounting seat (2), thereby limiting the free end of the gear holder (5) from crossing over the locking portion (4).

2. A gear shifting device according to claim 1, characterized in that: A gear shaft (7) is provided at the free end of the gear clamp (5), and the gear shaft (7) is used to engage with the engaging portion (4). A locking groove (3) is provided at one end of the locking member (6) close to the free end of the gear clamp (5), and the locking groove (3) is used to abut against and engage the gear shaft (7) when the locking member (6) slides to a predetermined position, so as to limit the gear shaft (7) from sliding out of the opening of the engaging portion (4).

3. A gear shifting device according to claim 2, characterized in that: A sliding seat (8) is arranged on one side of the rotating mounting seat (2) away from the free end of the gear position bracket (5); the locking member (6) is arranged on the sliding seat (8) in a sliding manner along a predetermined direction; and a locking mechanism is arranged on the sliding seat (8) for locking the locking member (6) when the locking member (6) slides to a predetermined position.

4. A gear shifting device according to claim 3, characterized in that: The locking mechanism comprises a spring sheet (801) arranged on the sliding seat (8), a locking end (802) being arranged on the spring sheet (801), and two locking grooves (602) matching with the locking end (802) being arranged on the side wall of the locking member (6), the two locking grooves (602) being spaced apart by a preset distance.

5. A gear shifting device according to claim 3, characterized in that: A group of support frames (9) are arranged on one side of the rotating mounting seat (2) close to the free end of the gear holder (5), a guide rod (10) is arranged between the group of support frames (9), and a guide sliding hole (603) is arranged on one end of the locking member (6) close to the free end of the gear holder (5), and the guide rod (10) is located in the guide sliding hole (603).

6. A gear shifting device according to claim 1, characterized in that: The locking portion (4) comprises a first locking position (401) and a second locking position (402), and the gear locking frame (5) can move to engage with the first locking position (401) and the second locking position (402) respectively during the rotation of the rotating mounting seat (2) relative to the clamping base (1); the first locking position (401) corresponds to the underwater posture of the marine propeller, and the second locking position (402) corresponds to the above-water posture of the marine propeller.

7. A gear shifting device according to claim 6, characterized in that: The number of the first clamping positions (401) is plural, and when the gear clamping frame (5) is engaged with different first clamping positions (401), the marine propeller has different inclination angles relative to the vertical plane, and a spacing portion (4011) is provided between two adjacent first clamping positions (401); when the angle between the gear clamping frame (5) and the clamping base (1) changes and is greater than a preset angle, the free end of the gear clamping frame (5) can span over any adjacent spacing portion (4011).

8. A gear shifting device according to claim 7, characterized in that: The gear holder (5) is rotatably connected to the rotating mounting seat (2) via a rotating shaft, and a torsion spring (11) is provided on the rotating shaft, one end of the torsion spring (11) is connected to the gear holder (5), and the other end of the torsion spring (11) is connected to the rotating mounting seat (2), and the torsion spring (11) is used to drive the gear holder (5) to rotate when the rotating mounting seat (2) rotates relative to the clamping base (1).

9. A gear shifting device according to claim 7, characterized in that: The rotating mounting seat (2) is provided with a limiting mechanism for limiting the gear holder (5) from disengaging from the second clamping position (402), the limiting mechanism comprising a pin hole formed on the clamping base (1) and located on one side of the second clamping position (402), a limiting rod (12) being slidably arranged in the pin hole, the limiting rod (12) being used to abut against the free end of the gear holder (5) located in the second clamping position (402), an elastic mechanism being provided between the limiting rod (12) and the clamping base (1), the elastic mechanism applying a force to the limiting rod (12) to extend into the pin hole or to prevent it from extending out of the pin hole, so that the inner end of the limiting rod (12) is kept in a state of abutting against the free end of the gear holder (5) located in the second clamping position (402).

10. A marine propeller, characterized in that: The marine propeller comprises a gear shifting device as claimed in any one of claims 1 to 9.

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