Gearbox for glass fiber reinforced plastic ships and boats

Abstract

The utility model discloses a gear box for a glass fiber reinforced plastic boat. The gear box comprises a gear box shell, a gear box cover is installed on the upper side of the gear box shell, an input shaft and an output shaft are rotationally connected between the gear box shell and the gear box cover through bearings, an annular base is installed between the gear box shell and the gear box cover, and evenly-distributed sliding bases are slidably connected into an annular groove formed in the annular base; a transmission seat is arranged on the inner arc face of each sliding seat through dampers which are evenly distributed, the transmission seats and the output shaft are installed in a matched mode, and locking holes which are evenly distributed are formed between the gear box shell and the gear box cover. And meanwhile, the device absorbs centrifugal force generated in the high-speed rotation process of the gearbox output shaft for the glass fiber reinforced plastic boat through elastic damping, and the operation stability of the output shaft is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes for ships and boats, in particular to a gear box for glass fiber reinforced plastic ships and boats. Background Art

[0002] FRP is a new type of shipbuilding material and an important part of the modern material revolution. Although FRP has not been used in the shipbuilding industry for a long time, it has already shown its strong vitality and broad development prospects. FRP ships include fishing boats, yachts, high-speed passenger ships, official boats and transportation boats, etc. The gearbox is used inside the FRP ship to achieve the speed conversion and torque transmission between the input shaft and the output shaft. Some gearboxes include a box shell, a top cover is fixed on the top of the box shell by bolts, and the inside of the box shell is connected to the transmission shaft through a bearing. The outside of the transmission shaft is provided with gears. The input shaft and the output shaft in the gearbox are connected to the transmission shaft through the bearing. The gears are meshed and connected to each other to achieve speed conversion and torque transmission between the input shaft and the output shaft of the FRP boat. However, the housing and the top cover of the device are connected by evenly distributed bolt threads. When the staff installs the two, they need to use external tools to rotate the corresponding bolts for multiple circles to achieve the fixation between the housing and the top cover of the FRP boat gearbox. The operation is relatively cumbersome. At the same time, during the high-speed rotation of the output shaft of the FRP boat gearbox, it is disturbed by the external environment and centrifugal force is generated during the high-speed rotation of the output shaft, which affects the output rotation stability of the output shaft. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a gear box for fiberglass reinforced plastic boats. The device connects and fixes the box body and the box cover of the gear box for fiberglass reinforced plastic boats through elastic plug-in, and the operation is convenient and quick. At the same time, the device absorbs the centrifugal force generated during the high-speed rotation of the output shaft of the gear box for fiberglass reinforced plastic boats through elastic damping, effectively improving the operating stability of the output shaft, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gearbox for a fiberglass reinforced plastic boat, comprising a gearbox shell;

[0005] Gearbox shell: A gearbox cover is installed on its upper side, and the input shaft and the output shaft are rotatably connected between the gearbox shell and the gearbox cover through bearings respectively. An annular seat is installed between the gearbox shell and the gearbox cover, and an evenly distributed sliding seat is slidably connected in an annular groove opened inside the annular seat. The inner arc surface of the sliding seat is provided with a conduction seat through evenly distributed dampers, and the conduction seat is installed in cooperation with the output shaft. Evenly distributed locking holes are opened between the gearbox shell and the gearbox cover, and a locking column is inserted between two vertically adjacent locking holes. The device connects and fixes the gearbox body and the cover for glass fiber reinforced plastic boats through elastic insertion, and the operation is convenient and quick. At the same time, the device absorbs the centrifugal force generated during the high-speed rotation of the output shaft of the gearbox for glass fiber reinforced plastic boats through elastic damping, thereby effectively improving the running stability of the output shaft.

[0006] Furthermore, the front sides of the gear box shell and the gear box cover are both provided with mounting seats, and the front ends of the mounting seats are fixedly connected to the outer arc surface of the annular seat to support, install and fix the annular seat.

[0007] Furthermore, evenly distributed springs are provided between the slide seat and the adjacent conduction seat, and the springs are slidably sleeved with the outer ends of the adjacent dampers, so that the operating stability of the output shaft in the fiberglass reinforced plastic boat gearbox is improved through the spring compression force.

[0008] Furthermore, the inner arc surface of the conductive seat is provided with evenly distributed semicircular grooves, and the interior of the semicircular grooves is rotatably connected with a rotating ball to reduce the contact friction between the conductive seat and the output shaft.

[0009] Furthermore, the outer side surface of the gear box shell is provided with evenly distributed grooves, the inside of the grooves are slidably connected to limit rods, the lower ends of the locking columns are provided with limit holes, and the ends of the limit rods close to the center of the gear box shell are plugged into the adjacent limit holes, so that the initial connection and fixation between the inner box body and the box cover of the fiberglass boat gear box are achieved through plug-in.

[0010] Furthermore, a toggle button is provided at one end of the limit rod away from the center of the gear box shell, and a spring 2 is provided between the groove and the adjacent toggle button. The spring 2 is movably connected to the outer side of the adjacent limit rod, and the limit rod is plugged into the adjacent limit hole in the fiberglass boat gear box through the stretching elastic force of the spring 2.

[0011] Furthermore, guide grooves are provided on the outer sides of the locking columns, and the interiors of the locking holes are slidably connected to the guide grooves via guide bars, thereby preventing relative rotation between the locking columns and the locking holes in the gearbox for glass fiber reinforced plastic boats during insertion of the locking columns.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the fiberglass reinforced plastic boat gearbox has the following advantages:

[0013] 1. During the rotation output of the output shaft of the FRP boat gearbox, the rotational centrifugal force generated during its rotation is transmitted to the damper and spring 1 through the conduction seat. Through the elastic contraction of spring 1 and the friction or hydraulic resistance of the elastic element and the bearing element inside the damper, the rotational inertia force of the output shaft of the FRP boat gearbox is converted into heat energy for release, effectively improving the output rotation operation stability of the output shaft of the FRP boat gearbox.

[0014] 2. When installing the gearbox shell and the gearbox cover of the FRP boat gearbox, the locking column is vertically plugged into the corresponding locking holes between the gearbox shell and the gearbox cover to achieve initial fixation between the two. Then, the compression elastic force of the second spring is used to make the limit rod plug into the adjacent limit hole, thereby achieving complete connection and limit between the gearbox body and the cover. There is no need to twist the bolts for multiple turns to achieve connection and fixation between the two. The installation operation is convenient and quick, and it is easy to disassemble later. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0018] Figure 4 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0019] In the figure: 1 gearbox housing, 2 gearbox cover, 3 input shaft, 4 output shaft, 5 mounting seat, 6 annular seat, 7 annular groove, 8 sliding seat, 9 damper, 10 spring 1, 11 conduction seat, 12 rotating ball, 13 locking column, 14 limit rod, 15 dial button, 16 spring 2, 17 guide groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 ,This embodiment provides a technical solution: a gearbox for a fiberglass reinforced plastic boat, comprising a gearbox housing 1;

[0022] Gearbox housing 1: A gearbox cover 2 is installed on its upper side. An input shaft 3 and an output shaft 4 are rotatably connected between the gearbox housing 1 and the gearbox cover 2 through bearings. An annular seat 6 is installed between the gearbox housing 1 and the gearbox cover 2. An evenly distributed slide seat 8 is slidably connected in an annular groove 7 opened inside the annular seat 6. A conductive seat 11 is provided on the inner arc surface of the slide seat 8 through evenly distributed dampers 9. The conductive seat 11 is installed in conjunction with the output shaft 4. Evenly distributed locking holes are opened between the gearbox housing 1 and the gearbox cover 2. Two vertically adjacent lock holes are connected to each other. A locking column 13 is inserted between the stop holes, and a mounting seat 5 is provided on the front side of the gear box shell 1 and the gear box cover 2. The front end of the mounting seat 5 is fixedly connected to the outer arc surface of the annular seat 6. A uniformly distributed spring 10 is provided between the slide seat 8 and the adjacent conductive seat 11. The spring 10 is slidably sleeved with the outer end of the adjacent damper 9. The inner arc surface of the conductive seat 11 is provided with uniformly distributed semicircular grooves, and the interior of the semicircular groove is rotatably connected with a rotating ball 12. When using a fiberglass boat gearbox, the external power element drives the input shaft 4 to rotate. , the input shaft 4 is driven by meshing between the gears in the gearbox to perform speed conversion and torque transmission, and is output through the output shaft 4. During the rotation output of the output shaft 4, the conduction seat 11 contacts the outer side of the output shaft 4. The rotational centrifugal force generated during the rotation of the output shaft 4 of the FRP boat gearbox is transmitted to the damper 9 and the spring 10 through the conduction seat 11. Through the elastic contraction of the spring 10, and the elastic elements and bearing elements inside the damper 9 through friction or hydraulic resistance, the rotational inertia force of the output shaft 4 of the FRP boat gearbox is converted into heat energy for release, effectively improving the output rotation operation stability of the output shaft 4 of the FRP boat gearbox. During this process, the slide seat 8 slides adaptively around the annular groove 7, and the rotating ball 12 rotates adaptively around the corresponding semicircular groove. The point contact between the rotating ball 12 and the output shaft 4 avoids the contact resistance of the conduction seat 11 to the rotation of the output shaft 4. The device absorbs the centrifugal force generated during the high-speed rotation of the output shaft 4 of the FRP boat gearbox through elastic damping, effectively improving the operation stability of the output shaft 4.

[0023] Among them, the outer side of the gear box shell 1 is provided with evenly distributed grooves, and the inside of the grooves is slidably connected to the limit rod 14, and the lower end of the locking column 13 is provided with a limit hole. The end of the limit rod 14 close to the center of the gear box shell 1 is plugged into the adjacent limit hole, and the end of the limit rod 14 away from the center of the gear box shell 1 is provided with a dial button 15, and a spring 2 16 is provided between the groove and the adjacent dial button 15. The spring 2 16 is movably sleeved with the outer side of the adjacent limit rod 14, and the outer side of the locking column 13 is provided with a guide groove 17, and the inside of the locking hole is slidably connected to the guide groove 17 through a guide strip. When the gear box shell 1 and the gear box cover 2 are installed, the dial button 15 is toggled to drive the limit rod 14 to move to the end away from the center of the gear box shell 1, and the spring 2 16 elastically pulls The locking posts 13 are respectively inserted into two vertically adjacent locking holes, and slide along the guide strips through the guide grooves 17, so as to prevent the relative rotation between the two during the insertion of the locking posts 13 into the locking holes. After the locking posts 13 are inserted into the locking holes, the limiting rods 14 are horizontally aligned with the adjacent limiting holes. Then, the tension applied to the dial button 15 is released, and the limiting rods 14 are plugged into the adjacent limiting holes through the stretching elastic force of the spring 2 16, so as to realize the installation between the gear box shell 1 and the gear box cover 2. The operation is simple and the disassembly is convenient in the later stage. The device connects and fixes the gear box body and the box cover for glass fiber reinforced plastic boats through elastic plug-in, and the operation is convenient and quick.

[0024] The working principle of a FRP boat gearbox provided by the utility model is as follows: when the FRP boat gearbox is used, an external power element drives the input shaft 4 to rotate, and the input shaft 4 performs speed conversion and torque transmission through the meshing transmission between the gears in the gearbox, and outputs through the output shaft 4. During the rotation output of the output shaft 4, the conduction seat 11 contacts the outer side surface of the output shaft 4. The rotational centrifugal force generated during the rotation of the output shaft 4 of the FRP boat gearbox is transmitted to the damper 9 and the spring 10 through the conduction seat 11. Through the elastic contraction of the spring 10 and the friction or hydraulic resistance of the elastic elements and the bearing elements inside the damper 9, the rotational inertia force of the output shaft 4 of the FRP boat gearbox is converted into heat energy release, thereby effectively improving the output rotation operation stability of the output shaft 4 of the FRP boat gearbox. During this process, the slide seat 8 adaptively slides around the annular groove 7, and the rotating ball 12 adaptively slides around the corresponding semicircular groove The gear box 1 and the gear box cover 2 are installed together by rotating the dial button 15, so that the limit rod 14 is driven to move to the end away from the center of the gear box 1, and the spring 16 is elastically stretched, so as to prevent the limit rod 14 from interfering with the insertion between the locking column 13 and the locking hole. The locking column 13 is inserted into the two vertically adjacent locking holes respectively, and slides along the guide bar through the guide groove 17, so as to prevent the relative rotation between the two during the insertion of the locking column 13 into the locking hole. After the locking column 13 is inserted into the locking hole, the limit rod 14 is horizontally aligned with the adjacent limit hole, and then the tension applied to the dial button 15 is released. The limit rod 14 is plugged into the adjacent limit hole through the stretching elastic force of the spring 16, so as to realize the installation between the gear box shell 1 and the gear box cover 2. The operation is simple and the disassembly is convenient in the later stage.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gearbox for a fiberglass boat, characterized in that: It includes a gearbox housing (1); The gearbox housing (1) has a gearbox cover (2) installed on its upper side. An input shaft (3) and an output shaft (4) are rotatably connected between the gearbox housing (1) and the gearbox cover (2) via bearings. An annular seat (6) is installed between the gearbox housing (1) and the gearbox cover (2). An annular groove (7) provided inside the annular seat (6) is slidably connected with evenly distributed slide seats (8). An inner arc surface of the slide seat (8) is provided with a conduction seat (11) via evenly distributed dampers (9). The conduction seat (11) is installed in cooperation with the output shaft (4). Evenly distributed locking holes are provided between the gearbox housing (1) and the gearbox cover (2). A locking column (13) is inserted between two vertically adjacent locking holes.

2. A fiberglass reinforced plastic boat gearbox according to claim 1, characterized in that: The front sides of the gear box housing (1) and the gear box cover (2) are both provided with mounting seats (5), and the front ends of the mounting seats (5) are fixedly connected to the outer arc surface of the annular seat (6).

3. The fiberglass reinforced plastic boat gearbox according to claim 1, characterized in that: Evenly distributed springs (10) are provided between the sliding seat (8) and the adjacent conducting seat (11), and the springs (10) are slidably sleeved with the outer ends of the adjacent dampers (9).

4. The fiberglass reinforced plastic boat gearbox according to claim 1, characterized in that: The inner arc surface of the conductive seat (11) is provided with evenly distributed semicircular grooves, and the interior of the semicircular grooves is rotatably connected with a rotating ball (12).

5. The fiberglass reinforced plastic boat gearbox according to claim 1, characterized in that: The outer side surface of the gear box housing (1) is provided with evenly distributed grooves, the interior of the grooves is slidably connected to a limit rod (14), the lower end of the locking column (13) is provided with a limit hole, and the end of the limit rod (14) close to the center of the gear box housing (1) is plugged into the adjacent limit hole.

6. The fiberglass reinforced plastic boat gearbox according to claim 5, characterized in that: A toggle button (15) is provided at one end of the limit rod (14) away from the center of the gear box housing (1), and a second spring (16) is provided between the groove and the adjacent toggle button (15), and the second spring (16) is movably sleeved with the outer side of the adjacent limit rod (14).

7. The fiberglass reinforced plastic boat gearbox according to claim 1, characterized in that: The outer sides of the locking columns (13) are provided with guide grooves (17), and the interiors of the locking holes are slidably connected to the guide grooves (17) via guide strips.

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