Fishing boat stern shaft braking device

[0017] Example 1

[0018] in figure 1 , A stern shaft brake device of a fishing boat, which includes a hydraulic pump station 1, a hydraulic oil cylinder 2 and a mounting plate assembly 3. Among them, the hydraulic cylinder 2 is connected to the hydraulic pump station 1 via a hydraulic pipe 11 in a conventional connection manner.

[0019] Such as figure 1 As shown, a fishing boat stern shaft brake device further includes a semi-annular upper hoop body 5 and a semi-annular lower hoop body 6, and the upper hoop body 5 and the lower hoop body 6 can form an embracing shape. In application, the upper hoop body 5 and the lower hoop body 6 encircle the stern shaft of the fishing boat to achieve braking on the stern shaft of the fishing boat.

[0020] In order to improve the friction force of the upper hoop body 5 and the lower hoop body 6 when braking the stern shaft of the fishing boat, such as figure 1 As shown, friction plates 7 are respectively provided on the opposite surfaces of the upper hoop body 5 and the lower hoop body 6.

[0021] in figure 1 Among them, the connecting ends of the upper hoop body 5 and the lower hoop body 6 are respectively rotatably connected to the mounting plate assembly 3 through the connecting piece 4.

[0022] It should be noted that such as figure 1 As shown, in this embodiment, the mounting plate assembly 3 includes a mounting connecting plate 301 and two side plates 302, and the side plates 302 are symmetrically welded on both sides of the mounting connecting plate 301 to form a lateral "凵" shape. structure. The connecting piece 4 can be a conventional pivoting assembly. In this embodiment, the connecting piece 4 is preferably a connecting shaft. The connecting ends of the upper hoop body 5 and the lower hoop body 6 are respectively connected to the two side plates 302 through the connecting shafts. between.

[0023] in figure 1 In the upper hoop body 5, an actuator 8 is provided between the locking ends of the lower hoop body 6. The cylinder body of the hydraulic cylinder 2 is fixed on the locking end of the upper hoop body 5, and the piston rod of the hydraulic cylinder 2 is executed The mechanism 8 drives the upper hoop body 5 and the lower hoop body 6 to hold or loosen.

[0024] It should be noted that such as figure 1 As shown, in this embodiment, the actuator 8 includes a drive plate 801 and a pull rod 802. One end of the drive plate 801 is rotatably connected to the upper hoop body 5 on the side close to its locking end. The piston of the hydraulic cylinder 2 The rod is hinged on the end of the driving plate 801 far away from the upper hoop body 5, and the piston rod of the hydraulic cylinder 2 can drive the driving plate 801 to swing on one side of the upper hoop body 5 through expansion and contraction of the piston rod. One end of the tie rod 802 is threadedly connected to the locking end of the lower hoop body 6, and the end of the tie rod 802 away from the lower hoop body 6 movably penetrates the locking end of the upper hoop body 5, the drive plate 801 and extends from the upper part of the drive plate 801 in turn. An adjustment mechanism 9 is provided between the end of the pull rod 802 away from the lower hoop body 6 and the driving plate 801.

[0025] Need to be further clarified, such as figure 1 As shown, in this embodiment, the adjustment mechanism 9 includes a shaft lock 901. A lock groove 902 is formed on the end of the pull rod 802 away from the lower hoop body 6 in an annular shape. The shaft lock 901 is locked and fitted with the lock groove 902 of the pull rod 802 and pressed Lean on the drive board 801.

[0026] In addition, in order to reduce manufacturing costs and reduce processing difficulties, such as figure 1 As shown, in this embodiment, the rotational connection between one end of the drive plate 801 and the side of the upper hoop body 5 close to its locking end is realized in the following manner: a side of the upper hoop body 5 close to its locking end is opened. An arc-shaped supporting groove 501, one end of the driving board 801 is rotatably connected in the supporting groove 501 through an arc-shaped supporting surface 8011 provided at the end.

[0027] In order to realize the automatic release of the upper hoop body 5 and the lower hoop body 6, such as figure 1 As shown, a return spring 10 is sleeved on the pull rod 802 between the locking ends of the upper hoop body 5 and the lower hoop body 6. After the stern shaft of the fishing boat is effectively braked, the piston rod of the hydraulic oil cylinder 2 is reset, and the return spring 10 can open the locking ends of the upper hoop body 5 and the lower hoop body 6 that surround the stern shaft of the fishing boat, so as to prevent the friction plate 7 from contacting the fishing boat. Friction of the stern shaft.

[0028] Example 2

[0029] figure 2 The structure of another embodiment of the present invention is given.

[0030] in figure 2 In, a fishing boat stern shaft brake device, which is the same as the first embodiment: both include a hydraulic pump station 1, a hydraulic cylinder 2, a mounting plate assembly 3, a half-ring upper hoop body 5 and a half-ring The connecting ends of the lower hoop body 6, the upper hoop body 5, and the lower hoop body 6 are respectively rotatably connected to the mounting plate assembly 3 through the connecting piece 4; on the opposite faces of the upper hoop body 5 and the lower hoop body 6 are respectively provided Friction plate 7; an actuator 8 is provided between the locking ends of the upper hoop body 5 and the lower hoop body 6; the cylinder of the hydraulic cylinder 2 is fixed on the locking end of the upper hoop body 5, and the piston rod of the hydraulic cylinder 2 The actuator 8 drives the upper hoop body 5 and the lower hoop body 6 to tightly hold or loosen. The actuator 8 also includes a drive plate 801 and a pull rod 802. One end of the drive plate 801 is rotatably connected to the upper hoop body 5 on the side close to its locking end. The piston rod of the hydraulic cylinder 2 is hinged on the drive plate 801 away from it. On one end of the upper hoop body 5, one end of the pull rod 802 is connected to the locking end of the lower hoop body 6, and the end of the pull rod 802 away from the lower hoop body 6 movably penetrates the locking end of the upper hoop body 5, the drive plate 801 and is self-driving The upper part of the plate 801 extends, and an adjustment mechanism 9 is provided between the end of the pull rod 802 away from the lower hoop body 6 and the drive plate 801; the pull rod 802 between the upper hoop body 5 and the locking end of the lower hoop body 6 is sleeved There is a return spring 10.

[0031] The difference between this embodiment and embodiment 1 is: figure 2 As shown, the adjustment mechanism 9 of this embodiment includes an adjustment nut 903 and a lock nut 904. One end of the pull rod 802 is welded and fixed to the locking end of the lower hoop body 6, and the end of the pull rod 802 away from the lower hoop body 6 is formed with The adjusting nut 903 is threadedly connected with the end of the pull rod 802 away from the lower hoop body 6 and pressed against the driving plate 801. In order to prevent the adjustment nut 903 from loosening, the lock nut 904 and the end of the pull rod 802 away from the lower hoop body 6 are threadedly connected and pressed against the adjustment nut 903.

[0032] In addition, such as figure 2 As shown, in this embodiment, the rotational connection between one end of the drive plate 801 and the side of the upper hoop body 5 close to its locking end is realized in the following manner: fixed on the side of the upper hoop body 5 close to its locking end A hinge seat 12 is connected, and one end of the driving plate 801 close to the upper hoop body 5 is rotatably connected to the hinge seat 12 through a hinge shaft 13.

[0033] In the present invention, when the stern shaft needs to be braked, the hydraulic pump station 1 controls the piston rod of the hydraulic cylinder 2 to extend, and the piston rod of the hydraulic cylinder 2 drives the drive plate 801 to swing on one side of the upper hoop body 5. Under the restriction of the lock 901 or the adjusting nut 903, the lower hoop body 6 is driven up by the pull rod 802 to hold the upper hoop body 5 and the lower hoop body 6 tightly. There is friction on the opposite surfaces of the upper hoop body 5 and the lower hoop body 6 There is friction between the plate 7 and the stop sleeve on the stern shaft to reliably stop the stern shaft in a short time, and its braking efficiency is high; at the end of braking, the hydraulic pump station 1 controls the piston of the hydraulic cylinder 2 When the rod is reset, the upper hoop body 5 and the lower hoop body 6 are released under the action of the return spring 10, and the friction plate 7 no longer rubs against the stern shaft of the fishing boat, which causes little damage to the components.