Shifting fork clutch gear conversion box for offshore renewable energy comprehensive platform

Abstract

The utility model discloses a shifting fork clutch gear conversion box for an offshore renewable energy comprehensive platform, which is characterized in that a shifting fork is Y-shaped, the top of the shifting fork is connected with a snap ring of a sliding gear, the bottom of the shifting fork is slidably mounted on a guide shaft, the guide shaft is parallel to a first transmission shaft and a second transmission shaft, and a spring is sleeved on the guide shaft; a magnetic clutch is arranged close to the end of the guide shaft and used for attracting the shifting fork after being powered on so as to drive the sliding gear to slide along the first transmission shaft, and the spring is used for driving the shifting fork and the sliding gear to reset after the magnetic clutch is powered off. The device meets the use requirements of a surge power generation system, has the function of changing input steering and keeping output steering unchanged on one hand, has the clutch function on the other hand, does not need to replace quick-wear parts regularly, solves the problem of difficulty in offshore maintenance, improves the operation safety, prolongs the service life of the parts, and ensures the continuous and stable operation of an offshore platform.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission, and in particular to a shift fork clutch gear conversion box for an integrated offshore renewable energy platform. Background Technology

[0002] The swell power generation system of the offshore integrated platform is used to collect swell energy and convert it into electrical energy to power the platform. The components used to collect swell energy in the swell power generation system include a float, a pendulum, and a gear conversion box. Its working principle is that the float is connected to the overhanging end of the pendulum. The float floats on the sea surface and rises and falls with the swell, driving the pendulum to swing up and down periodically in the vertical plane. The gear conversion box then converts the periodic swing of the pendulum into unidirectional output power.

[0003] The following issues need to be addressed in the design and manufacture of gearboxes: 1. The direction of the rocker arm changes periodically, requiring the output shaft of the gearbox to always maintain a constant direction of rotation; 2. The gearbox must have a clutch function to control the engagement or disengagement of power transmission.

[0004] Traditional clutch devices achieve the clutch function by pressing or releasing friction plates. The friction plates need to be inspected and replaced regularly. Due to the long-term continuous operation of the surge power generation system, coupled with the erosion of the marine environment, the frequency of friction plate replacement is much higher than that of the land-based environment. Moreover, it is more difficult to maintain and replace components at sea. Therefore, traditional clutch devices are not suitable for offshore platforms.

[0005] Therefore, how to create a new type of shift fork clutch gear conversion box for integrated offshore renewable energy platforms is one of the important research and development topics at present. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a shift fork clutch gear conversion box for an integrated offshore renewable energy platform, which has a clutch function and does not require regular replacement of vulnerable parts, thus solving the problem of difficult offshore maintenance. At the same time, it can ensure that the output direction remains unchanged when the input direction changes, meeting the usage requirements of the surge power generation system, thereby overcoming the shortcomings of the prior art.

[0007] To solve the above-mentioned technical problems, this utility model provides a shift fork clutch gear conversion box for a marine renewable energy integrated platform, including a box body, a first drive shaft, a second drive shaft, a sliding gear, a first spur gear, a second spur gear, and a shift fork clutch device;

[0008] The first drive shaft and the second drive shaft are installed parallel to each other inside the housing. The first spur gear is installed on the first drive shaft, and the second spur gear is installed on the second drive shaft. The first spur gear and the second spur gear mesh.

[0009] The sliding gear is slidably mounted on the first transmission shaft, and a retaining ring is fixedly connected to one side of the sliding gear. A retaining groove is machined along the outer periphery of the retaining ring.

[0010] The shift fork clutch device includes a shift fork, a guide shaft, a spring, and a magnetic clutch. The shift fork is Y-shaped, with its top placed in the groove of a retaining ring and its bottom having an opening and being slidably mounted on the guide shaft. The guide shaft is arranged parallel to the first and second drive shafts. A spring is fitted on the guide shaft, and a magnetic clutch is located near the end of the guide shaft. The magnetic clutch is used to engage the shift fork when energized, thereby driving the sliding gear to slide along the first drive shaft. The spring is used to drive the shift fork and the sliding gear to reset when the magnetic clutch is de-energized.

[0011] As an improvement of this utility model, a shift fork clutch gear conversion box for an integrated offshore renewable energy platform further includes an output shaft, a first bevel gear and two second bevel gears. The output shaft is perpendicular to the second transmission shaft. The first bevel gear is installed at the end of the second transmission shaft. The two second bevel gears are installed facing each other on the output shaft and are both meshed with the first bevel gear.

[0012] The second bevel gear has a sawtooth groove, and the output shaft has a keyway. A bevel key is installed in the keyway. The top of the bevel key has a bevel that matches the angle of the sawtooth groove. The root of the bevel key is connected to the bottom of the keyway by an elastic element. The sawtooth groove and the bevel key work together to enable the second bevel gear and the output shaft to drive in a single direction.

[0013] Furthermore, the housing is L-shaped and includes a main chamber and a secondary chamber. The main chamber is used to install a first drive shaft, a second drive shaft, a sliding gear, a first spur gear, a second spur gear, and a shift fork clutch device. The secondary chamber is used to install an output shaft, a first bevel gear, and a second bevel gear.

[0014] Furthermore, the main cavity is provided with a mounting bracket for supporting the guide shaft and the magnetic clutch.

[0015] Furthermore, the first transmission shaft is provided with shoulders on both sides of the sliding gear, and the shoulders are used to limit the axial displacement of the sliding gear.

[0016] Furthermore, the sliding gear meshes with the sector gear in the initial position. The teeth on the sector gear are distributed in a sector shape. The sector gear is fixedly connected to the root of the swing arm. The swing arm swings up and down in a vertical plane. When the swing angle of the swing arm is greater than a specified value, the last tooth of the sector gear disengages from the sliding gear.

[0017] Furthermore, an angle sensor is installed on the swing arm.

[0018] With this design, the present invention has at least the following advantages:

[0019] 1. By setting up a shift fork clutch device, power transmission can be engaged or disengaged. Compared with the traditional friction clutch, there is no need to replace the friction plates regularly, which solves the problem of difficult maintenance and replacement at sea.

[0020] 2. After the user issues the clutch command, the control system first determines the angle of the rocker arm through the angle sensor on the rocker arm. When the swing angle is greater than the specified value, power is supplied to the magnetic clutch. At this time, the last tooth of the sector gear has disengaged from the sliding gear. The magnetic clutch drives the sliding gear to slide axially without colliding with the sector gear, which not only ensures operational safety but also extends the service life of the components.

[0021] 3. The second bevel gear is connected to the output shaft by a sawtooth groove and a bevel key, so that the second bevel gear can only drive in the clockwise direction. When the two second bevel gears are installed facing each other and both mesh with the first bevel gear, the two second bevel gears always rotate in opposite directions, but only the clockwise rotation can drive the output shaft to rotate, thus meeting the requirement that the output direction remains unchanged when the input direction changes.

[0022] 4. Simple structure and easy to manufacture. Attached Figure Description

[0023] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0025] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0026] Figure 3 This is a top view of the structure of this utility model.

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the second bevel gear and the output shaft.

[0028] Figure 5 This is a schematic diagram of the usage state of this utility model.

[0029] Explanation of reference numerals in the attached drawings: 1. Housing; 1-1. Main chamber; 1-2. Secondary chamber; 1-3. Mounting bracket; 2. First drive shaft; 2-1. Shoulder; 3. Sliding gear; 3-1. Snap ring; 4. Shift fork clutch device; 4-1. Shift fork; 4-2. Guide shaft; 4-3. Spring; 4-4. Magnetic clutch; 5. First spur gear; 6. Second spur gear; 7. Second drive shaft; 8. First bevel gear; 9. Second bevel gear; 9-1. Serrated groove; 10. Output shaft; 10-1. Keyway; 10-2. Angled key; 11. Rocker arm; 11-1. Sector gear. Detailed Implementation

[0030] Please see Figures 1 to 3 This utility model provides a shift fork clutch gear conversion box for an integrated offshore renewable energy platform, including a box body 1, a first drive shaft 2, a second drive shaft 7, a sliding gear 3, a first spur gear 5, a second spur gear 6, a shift fork clutch device 4, a first bevel gear 8, a second bevel gear 9, and an output shaft 10.

[0031] The box 1 is L-shaped and has an internal partition that divides the internal space of the box 1 into a main chamber 1-1 and a secondary chamber 1-2.

[0032] The interior of the main chamber 1-1 is used to install the first drive shaft 2, the second drive shaft 7, the sliding gear 3, the first spur gear 5, the second spur gear 6, and the shift fork clutch device 4.

[0033] The main chamber 1-1 is also equipped with a mounting bracket 1-3, which provides support for the guide shaft 4-1 and the magnetic clutch 4-4 in the shift fork clutch device 4.

[0034] The interior of the auxiliary chamber 1-2 is used to install the output shaft 10, the first bevel gear 8, and the second bevel gear 9.

[0035] The first drive shaft 2 and the second drive shaft 7 are installed parallel to each other in the main chamber 1-1. Specifically, the first drive shaft 2 is horizontally installed between the two side walls of the main chamber 1-1 via bearings, and the second drive shaft 7 is horizontally installed on the side wall and partition of the main chamber 1-1 via bearings, with the end of the second drive shaft 7 extending into the auxiliary chamber 1-2.

[0036] The first spur gear 5 is mounted on the first transmission shaft 2, and the second spur gear 6 is mounted on the second transmission shaft 7. The first spur gear 5 and the second spur gear 6 mesh with each other to realize the transmission between the first transmission shaft 2 and the second transmission shaft 7.

[0037] The sliding gear 3 is slidably mounted on the first transmission shaft 2. A retaining ring 3-1 is fixedly connected to one side of the sliding gear 3. A retaining ring 3-1 has a groove machined around its outer periphery.

[0038] The shift fork clutch device 4 includes a shift fork 4-1, a guide shaft 4-2, a spring 4-3, and a magnetic clutch 4-4.

[0039] The shift fork 4-1 is Y-shaped, with the top fork positioned in the groove of the retaining ring 3-1, and the bottom having an opening and being fitted onto the guide shaft 4-2. The function of the shift fork 4-1 is to move along the guide shaft 4-2 and drive the sliding gear 3 to move along the second transmission shaft 2.

[0040] The guide shaft 4-2 is arranged parallel to the first drive shaft 2 and the second drive shaft 7. Specifically, the guide shaft 4-2 is mounted on the mounting bracket 1-3, which is a rectangular frame structure. The two ends of the guide shaft 4-3 are fixedly connected to the mounting bracket 1-3, and the mounting bracket 1-3 provides support for the guide shaft 4-2.

[0041] The spring 4-3 is mounted on the guide shaft 4-2, and the two ends of the spring 4-3 abut against the side frame of the shift fork 4-1 and the mounting bracket 1-3, respectively.

[0042] The magnetic clutch 4-4 is mounted on the side frame of the mounting bracket 1-3, near the end of the guide shaft 4-1. An electromagnet is installed inside the magnetic clutch 4-4, and the shift fork 4-1 is made of metal.

[0043] When the magnetic clutch 4-4 is energized, it generates an attractive force on the shift fork 4-1, driving the shift fork 4-1 to move towards its end against the elastic force of the spring 4-3. This, in turn, drives the sliding gear 3 to move along the first transmission shaft 2. Once the sliding gear 3 leaves its initial position, it disengages from external transmission. When the magnetic clutch 4-4 is de-energized, the elastic force of the spring 4-3 drives the shift fork 4-1 and the sliding gear 3 to reset, thus re-engaging with external transmission.

[0044] Preferably, the first drive shaft 2 is provided with shoulders 2-1 on both sides of the sliding gear 3 to limit the axial displacement of the sliding gear 3.

[0045] Please see Figure 5 The sliding gear 3 meshes with the external sector gear 11-1 at the initial position, and the housing 1 has a window at the corresponding position to allow the sector gear 11-1 to partially extend into the housing 1.

[0046] The teeth on the sector gear 11-1 are distributed in a sector shape. The sector gear 11-1 is fixedly connected to the root of the swing arm 11. A float is connected to the overhanging end of the swing arm 11. The float floats on the sea surface and rises and falls with the waves, thereby driving the swing arm 11 to swing up and down in a vertical plane. When the swing of the swing arm 11 exceeds a specified value, the last tooth of the sector gear 11-1 disengages from the sliding gear 3.

[0047] Preferably, an angle sensor is installed on the rocker arm 11 to monitor the swing angle of the rocker arm 11. When the user issues a clutch command, the control system first determines the angle of the rocker arm 11 through the angle sensor. Only when the rocker arm 11 swings greater than a specified angle will power be supplied to the magnetic clutch 4-4.

[0048] It should be noted that while this design sacrifices some power (the rocker arm 11 can no longer transmit power to the sliding gear 3 near the end of its swing stroke), it significantly improves operational safety, extends component lifespan, and ensures that the sliding gear 3 only slides after disengaging from the sector gear 11-1, preventing tooth collisions and component damage. By testing the sliding response time of the sliding gear 3 and rationally designing the sector angle of the sector gear 11-1, the power loss can be minimized.

[0049] Please see Figure 3 and Figure 4 The output shaft 10 is horizontally mounted on the side wall of the auxiliary chamber 12 via a bearing. The direction of the output shaft 10 is perpendicular to the second transmission shaft 7. One end of the output shaft 10 extends out of the housing 1 for outputting power to the outside.

[0050] The first bevel gear 8 is mounted on the end of the second output shaft 7, and two second bevel gears 9 are mounted on the output shaft 10 facing each other and meshing with the first bevel gear 8.

[0051] The second bevel gear 9 is provided with a sawtooth groove 9-1, and the output shaft 10 is provided with a keyway 10-1. A beveled key 10-2 is installed in the keyway 10-1. The top of the beveled key 10-2 has a bevel that matches the angle of the sawtooth groove 9-1. The root of the beveled key 10-2 is connected to the bottom of the keyway 10-1 by an elastic element.

[0052] It should be noted that the sawtooth groove 9-1 is opened on the inner circumference of the center hole of the second bevel gear 9. The sawtooth groove 9-1 is a sawtooth-shaped groove formed by multiple vertical and inclined surfaces that are evenly distributed and continuously connected in the circumferential direction. When the two second bevel gears 9 are processed, the sawtooth groove 9-1 faces opposite directions, but after they are installed facing each other, the sawtooth groove 9-1 faces the same direction.

[0053] When the second bevel gear 9 rotates clockwise, the serrated groove 9-1 contacts the vertical surface of the inclined key 10-2, thereby driving the output shaft 10 to rotate. When the second bevel gear 9 rotates counterclockwise, the serrated groove 9-1 contacts the inclined surface of the inclined key 10-2. At this time, the inclined key 10-2 is squeezed and sinks into the keyway 10-1, and the second bevel gear 9 cannot drive the output shaft 10 to rotate and instead spins idly.

[0054] The two second bevel gears 9 are mounted facing each other and both mesh with the first bevel gear 8. Regardless of whether the first bevel gear 8 rotates clockwise or counterclockwise, the two second bevel gears 9 always rotate in opposite directions and are always driven to the output shaft 10 by the clockwise rotating second bevel gear 9, thereby achieving the effect of changing the input direction while keeping the output direction unchanged.

[0055] This invention meets the usage requirements of surge power generation systems. On the one hand, it has the function of changing the input direction while keeping the output direction unchanged. On the other hand, it has a clutch function and eliminates the need for regular replacement of vulnerable parts, thus solving the problem of difficult offshore maintenance, improving operational safety, extending the service life of components, and ensuring the continuous and stable operation of offshore platforms.

[0056] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the above-disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. A shift fork clutch gear conversion box for an integrated offshore renewable energy platform, characterized in that, It includes a housing, a first drive shaft, a second drive shaft, a sliding gear, a first spur gear, a second spur gear, and a shift fork clutch device; The first drive shaft and the second drive shaft are installed parallel to each other inside the housing. The first spur gear is installed on the first drive shaft, and the second spur gear is installed on the second drive shaft. The first spur gear and the second spur gear mesh. The sliding gear is slidably mounted on the first transmission shaft, and a retaining ring is fixedly connected to one side of the sliding gear. A retaining groove is machined along the outer periphery of the retaining ring. The shift fork clutch device includes a shift fork, a guide shaft, a spring, and a magnetic clutch. The shift fork is Y-shaped, with its top placed in the groove of a retaining ring and its bottom having an opening and being slidably mounted on the guide shaft. The guide shaft is arranged parallel to the first and second drive shafts. A spring is fitted on the guide shaft, and a magnetic clutch is located near the end of the guide shaft. The magnetic clutch is used to engage the shift fork when energized, thereby driving the sliding gear to slide along the first drive shaft. The spring is used to drive the shift fork and the sliding gear to reset when the magnetic clutch is de-energized.

2. The shift fork clutch gear conversion box for an integrated offshore renewable energy platform according to claim 1, characterized in that, It also includes an output shaft, a first bevel gear, and two second bevel gears. The output shaft is perpendicular to the second transmission shaft. The first bevel gear is installed at the end of the second transmission shaft. The two second bevel gears are installed on the output shaft facing each other and are both meshed with the first bevel gear. The second bevel gear has a sawtooth groove, and the output shaft has a keyway. A bevel key is installed in the keyway. The top of the bevel key has a bevel that matches the angle of the sawtooth groove. The root of the bevel key is connected to the bottom of the keyway by an elastic element. The sawtooth groove and the bevel key work together to enable the second bevel gear and the output shaft to drive in a single direction.

3. The shift fork clutch gear conversion box for an integrated offshore renewable energy platform according to claim 2, characterized in that, The housing is L-shaped and includes a main chamber and a secondary chamber. The main chamber is used to install a first drive shaft, a second drive shaft, a sliding gear, a first spur gear, a second spur gear, and a shift fork clutch device. The secondary chamber is used to install an output shaft, a first bevel gear, and a second bevel gear.

4. The shift fork clutch gear conversion box for an integrated offshore renewable energy platform according to claim 3, characterized in that, The main chamber is equipped with a mounting bracket to support the guide shaft and the magnetic clutch.

5. The shift fork clutch gear conversion box for an integrated offshore renewable energy platform according to claim 1, characterized in that, Shoulders are provided on both sides of the sliding gear on the first transmission shaft, and the shoulders are used to limit the axial displacement of the sliding gear.

6. The shift fork clutch gear conversion box for an integrated offshore renewable energy platform according to claim 1, characterized in that, The sliding gear meshes with the sector gear in the initial position. The teeth on the sector gear are distributed in a sector shape. The sector gear is fixedly connected to the root of the swing arm. The swing arm swings up and down in a vertical plane. When the swing angle of the swing arm is greater than a specified value, the last tooth of the sector gear disengages from the sliding gear.

7. A shift fork clutch gear conversion box for an integrated offshore renewable energy platform according to claim 6, characterized in that, An angle sensor is installed on the swing arm.

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