CN203627394U

CN203627394U - Hydraulic cylinder for deep water winch brake structure

Info

Publication number: CN203627394U
Application number: CN201320679693.2U
Authority: CN
Inventors: 贺登来
Original assignee: Ningbo Jessn Ocean Development Co Ltd
Current assignee: Jessn Marine Equipment Co ltd; Victory Marine Equipment Co ltd
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2014-06-04
Anticipated expiration: 2023-10-31

Abstract

The utility model discloses a hydraulic cylinder for a deep water winch brake structure. The hydraulic cylinder comprises a first hydraulic cylinder. A piston rod of the first hydraulic cylinder is provided with a stopping block perpendicular to the piston rod. A spring is arranged between the stopping block and the bottom of the first hydraulic cylinder. According to the hydraulic cylinder for the deep water winch brake structure, the fact that the piston rod is kept under a contraction state all the time under the state that the hydraulic cylinder does not work can be guaranteed, hydraulic cylinder working time is shortened, and service life is prolonged.

Description

A kind of oil hydraulic cylinder for deep water net drawing machine brake structure

Technical field

The utility model relates to marine machinery technical field, and specifically a kind of oil hydraulic cylinder for deep water net drawing machine brake structure is a kind of equipment for trawlnet on fishing boat that is arranged on.

Background technique

Deep water net drawing machine is mounted in the device for use in fishing trawl in trawler, and existing deep water net drawing machine generally comprises reel, oil hydraulic motor, brake system and rope guide.Traditional deep water net drawing machine is all generally one, and machine transports to go on board and assembles after integral installation well, but because deep water net drawing machine entirety is larger, installs comparatively inconvenience.

The operation of existing brake system generally all relies on manpower to strain and discharges cylinder.There is following problem in this structure: brake is by manual operation, realize the braking to cylinder by the speed of artificial hand screw rod and workman's strength, the size of workman's strength and the speed of hand screw rod can not meet the working condition requirement of large load ship machinery conventionally, and workman's danger in hand screw rod is very large, easily causes security incident.In order to improve the braking of Security and the large-scale winch of adaptation, the brake strap of a lot of large-scale winches all adopts oil hydraulic cylinder to drive, generally drive the tension of brake strap and unclamp by the flexible of oil hydraulic cylinder, brake strap is to need tension in most situation, only in the time that cylinder is worked, just unclamp, general brake system needs oil hydraulic cylinder to remain contraction state, and the element in oil hydraulic circuit is in running order all the time, therefore can cause hydraulic element shorter working life, easily cause damage.

Summary of the invention

The utility model is for prior art deficiency, a kind of oil hydraulic cylinder for deep water net drawing machine brake structure is provided, this oil hydraulic cylinder just can guarantee that under the state without hydraulic pump works piston rod remains contraction state, reduces the hydraulic cylinder works time, increases the service life.

In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of oil hydraulic cylinder for deep water net drawing machine brake structure, comprise the first oil hydraulic cylinder, on the piston rod of described the first oil hydraulic cylinder, be provided with the block vertical with piston rod, between described block and described the first oil hydraulic cylinder bottom, be provided with spring.

The utility model compared with prior art, there is following beneficial effect: this oil hydraulic cylinder for deep water net drawing machine brake structure of the utility model, this oil hydraulic cylinder just can guarantee that under the state without hydraulic pump works piston rod remains contraction state, reduce the hydraulic cylinder works time, increase the service life.

Accompanying drawing explanation

Fig. 1 is the utility model embodiment overall structure schematic diagram.

Fig. 2 is the first wall frame internal structure schematic diagram.

Fig. 3 is the structural representation of oil level and temperature-detecting device.

Fig. 4 is the right elevation of main drum.

Fig. 5 is that the B-B of Fig. 4 is to sectional view.

Fig. 6 is the partial enlarged drawing in Fig. 5.

Fig. 7 is the sectional structure schematic diagram of brake structure.

Fig. 8 is the partial enlarged drawing of Fig. 7.

Fig. 9 is the schematic diagram of clutch structure.

Figure 10 is the sectional structure schematic diagram of clutch structure.

Figure 11 is the structural representation of rope guide.

Figure 12 is the structural representation of guide roller.

Figure 13 is the structural representation of the second rotating shaft.

Figure 14 is the structural representation at the second wall frame place.

Figure 15 is the structural representation of chain wheel cover.

Figure 16 is that A-A in Figure 15 is to sectional view.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail: referring to Fig. 1 to Figure 16, a kind of oil hydraulic cylinder for deep water net drawing machine brake structure is the critical piece of deep water net drawing machine, this deep water net drawing machine comprises some wall framves 1, on the first wall frame 11, be provided with four oil hydraulic motors 2, gearwheel a and bearing support 3, on the output shaft of described oil hydraulic motor 2, be provided with small gear b, described small gear b coordinates transmission with described gearwheel a, described gearwheel a center is connected with the first rotating shaft 4, described the first rotating shaft 4 is through described bearing support 3, because the very large bearing support 3 of equipment is also very greatly very heavy, in order to be provided with hanger 31 on described bearing support 3 easy for installation, add lubricant oil for convenient to bearing, on described bearing support 3, be also provided with the first oil hole 32, outer main drum 41 and the loose drum 43 of being arranged with of described the first rotating shaft 4, for described the first wall frame 11 of convenient installation comprises base 111 and upper cover 112, described base 111 and upper cover 112 are for removably connecting, on described upper cover 112, be provided with observation panel 113, in described the first wall frame 11, be provided with lubricant oil for lubricated to gear transmission, be provided with oil level and temperature-detecting device 114 in order to control the sidewall of the first wall frame 11 described in the oil level of lubricant oil and temperature, in order to prevent that oil level and temperature-detecting device 114 are damaged, described oil level and temperature-detecting device 114 are arranged with the first protection baffle ring 115 around.

Main drum 41 comprises the first cylinder 411, described the first cylinder 411 both sides are welded with step-like contiguous block 412, described contiguous block 412 is provided with the first groove 413 for being welded and fixed with described the first cylinder 411 with described the first cylinder 411 joints, in described contiguous block 412, be provided with described the first rotating shaft 4 and be connected with bearing (not shown on figure), described contiguous block 412 diameter larger parts are also provided with the second oil hole 414, on described the second oil hole 414, be provided with oiling pipeline lubricated for the bearing oiling in contiguous block 412, on described contiguous block 412, diameter larger part is provided with some pieces 416 that stretch out, described contiguous block 412 diameter smaller parts are arranged with the first annular slab 417, described the first annular slab 417 1 sides lean described contiguous block 412 diameter larger parts, described the first annular slab 417 inner circles are provided with the second groove 418 near the first cylinder 411 sides, described the first annular slab 417 and described contiguous block 412 are by being welded and fixed, the first groove 413 and the convenient welding of the second groove 418 are set, and make welding more firm, while welding due to the first annular slab 417 and contiguous block 412 one side lean described contiguous block 412 diameter larger parts and described in stretch out piece 416, make the deformation after the first annular slab 417 welding very little, and when welding, locate convenient.Wherein a side described in stretch out piece 416 and be outside equipped with ratchet 419, the other ratchet clamping structure 4110 that arranges of described ratchet 419, coordinate by ratchet 419 and ratchet clamping structure 4110, prevent from making main drum 41 freely to rotate after brake strap 51 unclamps and cause danger, stretch out piece 416 outsides described in opposite side to be connected with annular ring 4111.Annular ring 4111 arranged outside have brake strap 51, described brake strap 51 one end are rotatably connected on braking bracket 12, the other end is rotatably connected to shrinking structure 52, described shrinking structure 52 lower ends and a connecting rod 55 are rotationally connected, described connecting rod 55 is rotationally connected with braking bracket 12, on described braking bracket 12, be provided with the first oil hydraulic cylinder 56, piston rod 561 ends of the first oil hydraulic cylinder 56 are hinged with connecting rod 55 through described braking bracket 12, described in the time that piston rod 561 moves upward, brake strap 51 is stopped tightly, described in the time that piston rod 561 moves downward, brake strap 51 unclamps, because main drum 41 is in the ordinary course of things all in the tight state of stopping, on the piston rod 561 of described the first oil hydraulic cylinder 56, be provided with the block vertical with piston rod 561 562, between described block 562 and described the first oil hydraulic cylinder 56 bottoms, be provided with spring 563, this makes at the first oil hydraulic cylinder 56 at idle situation lower piston rod 561 all the time in contraction state, even this makes also can make brake strap 51 in the tight state of stopping in the situation of power-off, prevent from main drum 41 freely being rotated cause danger because the situation brake strap such as power-off does not stop tight, described connecting rod 55 the other end upper surfaces are a plane, on the braking bracket 12 of described plane top, be provided with the first through hole (not shown on figure), described the first through hole top is fixed with a fixed block 57, on described fixed block 57, be provided with the 3rd screw 58, in described the 3rd screw 58, be provided with the second screw rod 59, described the second screw rod 59 moves downward connecting rod 55 top is unclamped brake strap 51 downwards, this makes just need not switch on when main drum 41 is put rope, in power-off, also can carry out the operation of releasing of brake band 51, be provided with runner 510 in order to rotate on more laborsaving described the second screw rod 59, because rotating reasons such as producing vibration, main drum 41 can make the second screw rod 59 fluff, therefore on described second screw rod 59 of described fixed block 57 tops, be provided with locking block 511, on described locking block 511, be provided with the 4th screw 512 passing for described the second screw rod 59, on described locking block 511, be provided with handle 513, in the time using operation, after the second screw rod 59 moves downward, connecting rod 55 is pushed up to the tight brake strap 51 of stopping downwards, then locking block 511 is rotated to fixed block 57 and is adjacent to, make the second screw rod 59 and fixed block 57, between the second screw rod 59 and locking block 511, produce very large static friction, thereby prevent from stopping when tight and because the second screw rod 59 moves upward, brake strap 51 being unclamped at brake strap 51.

Between described some wall framves 1, be connected with fixing rod 15, in order to prevent that main drum 41 hawser on main drum 41 in the time rotating from producing the outside of the first annular slab 417, on described fixing rod 15, be provided with some catch 151, described catch 151 and described the first annular slab 417 are in same plane, space distance between described catch 151 and described the first annular slab 417 is less than 2cm, in the present embodiment, there are two fixing rods 15, on every fixing rod 15, be provided with two described catch 151.

Described the first rotating shaft 4 adopts clutch structure 42 transmissions with described main drum 41, in the present embodiment, described clutch structure 42 comprises slide part 421, described slide part 421 centers have polygonal hole 422, described the first rotating shaft 4 is through described polygonal hole 422, and described the first rotating shaft 4 is identical with the sectional shape of described slide part 421 cross sections, cooperation place and described polygonal hole 422, on described slide part 421, be provided with some the first projections 423 near main drum 41 sides, on main drum 41, be provided with some the second projections 424, described the first projection 423 coordinates and forms snap-in structure with described the second projection 424, can realize the transmission of power between the first rotating shaft 4 and main drum 41 by moving around of slide part 421, described slide part 421 outer side surfaces are provided with the annular groove continuous along side 425, in described annular groove 425, be provided with driving lever 426, on the second wall frame 13, be provided with support platform 131, described driving lever 426 is hinged with described support platform 131, on described driving lever 426, be provided with the second through hole, in described support platform 131, be provided with third through-hole, between described the second through hole and described third through-hole, can fix by fixing pin 428, in described support platform 121, be also provided with the second oil hydraulic cylinder 429, described second oil hydraulic cylinder 429 one end and support platform 131 are rotationally connected, the other end and described driving lever 426 are rotationally connected, traditional clutch structure 42 is generally stirred by manpower, and in the present embodiment, can realize by the second oil hydraulic cylinder 429 clutch of clutch structure 42, make to operate convenient, realize automation control.

Be set in the upper except main drum 41 loose drum 43 in addition of the first rotating shaft 4, loose drum 43 is mainly used as hoist and is used, on described loose drum 43, be also provided with the clutch structure identical with main drum 41 and brake structure, described loose drum 43 comprises that the second cylinder 431 both sides are all welded with the second annular slab 432, two outer annular retaining rings 433 that are provided with of described the second annular slab 432, space between described annular retaining ring 433 and described the second annular slab 432 is less than 2cm, annular retaining ring 433 is set to be spread and causes the accident to the outside of the second annular slab 432 for preventing hawser, between two annular retaining rings 433, adopt bar 434 to connect, adopt bar 434 that annular retaining ring 433 is connected and fixed and makes the intensity of annular retaining ring 433 larger, more firm, in the present embodiment, described annular retaining ring 433 two ends all with the 3rd wall frame 14 on extension 141 be rotationally connected.

Traditional deep water net drawing machine is all integrative-structure, and in the present embodiment, rope guide 6 and the first wall frame 11 and the second wall frame 13 are Split type structure, between described rope guide 6 and the first wall frame 11 and the second wall frame 13, adopt and removably connect, rope guide 6 described in the present embodiment and the first wall frame 11 and the second wall frame 13 are with bolts, adopt in this way at deep water net drawing machine and install and convenient when transportation, reduce the weight of single carrying.

Described rope guide 6 comprises the support 61 at two ends, on two described supports 61, be fixedly installed some guide rods 62, between two described supports 61, be also provided with reverse-flighted screw 63, on described guide rod 62 and reverse-flighted screw 63, be provided with upper saw pulley 64, described reverse-flighted screw 63 is parallel with described guide rod 62, described upper saw pulley 64 is made up of framework 641 and the second rotating shaft 642 and the 3rd rotating shaft 643 that are arranged in described framework 641, described framework 641 and described the second rotating shaft 642, described the 3rd rotating shaft 643 surrounds three-way rope hole 644, in the time of rope closing, hawser is through three-way rope hole 644, by moving back and forth hawser proper alignment on main drum 41 of upper saw pulley 64, and the volume of deep water net drawing machine is very large, the weight of upper saw pulley 64 is also very large, for convenient, rope is taken out to three-way rope hole, bottom and the framework 641 of the second rotating shaft 642 of upper saw pulley 64 are rotationally connected, upper end and framework 641 removably connect, in the time that taking out rope or put into three-way rope hole 644, needs the second rotating shaft 642 can be fallen down like this, then rope is put into or is taken out three-way rope hole 644, forwarding the second rotating shaft 644 to original position again fixes, so just rope can easily be put into three-way rope hole 644 or take out three-way rope hole 644, described the second rotating shaft 642 lower ends and described framework 641 are rotationally connected, the second rotating shaft 642 upper ends and described framework 641 removably connect, described upper saw pulley 64 also includes wire twisting machine 645, on described wire twisting machine 645, be provided with rope, described rope one end is detachably connected on described the second rotating shaft 642 upper ends, the other end is set around on described wire twisting machine 645.Traditional demountable structure is generally on rope, to be fixed with a bolt, removably connect with the screw in the second rotating shaft 642, dismantle like this and install also and comparatively bother, in the present embodiment, described the second rotating shaft 642 upper ends are provided with suspension ring 646, described cable end is provided with drag hook 647, like this after the second rotating shaft 642 is fallen down, put into or take out hawser and become convenient, wire twisting machine 645 is set on upper saw pulley 64, make can controlling by the rotation of wire twisting machine 645 of the second rotating shaft 642, make rising of the second rotating shaft 642 safer, and a workman just can pour line operate into rising of the second rotating shaft 642, save human cost.

In order to prevent that upper saw pulley 64 from blocking, in described framework 641, guide rod 62 and reverse-flighted screw 63 are also provided with the 3rd oil hole 648 through place, and in order to prevent that the 3rd oil hole 648 is damaged, described the 3rd oil hole 648 sides are arranged with the second protection baffle ring 649.

Because the second rotating shaft 642 weight are very large, understand danger close just in case fall down to be pressed onto people, therefore in described framework 641, be provided with groove 6411 with described the second rotating shaft 642 contacting points, upper end, described the second rotating shaft 641 upper ends are provided with elastic component 6412, described elastic component 6412 is connected with moving mass 6413, described moving mass 6413 coordinates with described groove 6411, in the time that described moving mass 6413 is positioned at described groove 6411, it is downward that described moving mass 6413 is subject to the elastic force direction of elastic component 6412, in the present embodiment, described elastic component 6412 is spring, described elastic component 6412 is arranged at described moving mass 6413 tops.In order to facilitate rising of the second rotating shaft 642 to fall to operate, described suspension ring 646 are arranged at described moving mass 6413 tops, rotate wire twisting machine 645 like this and moving mass 6413 can be pulled out to groove 6411 in the time that the second rotating shaft 642 need to be fallen down, and facilitate the second rotating shaft 642 to fall down.

Between rope guide 6 and the first rotating shaft 4, generally all adopt chain transmission to carry out transmission of power, and traditional sprocket wheel 65 is to be generally fixed on main drum 41, when all needing main drum 41 to rotate, rope guide 6 just can be provided power at every turn, this is mainly that working state with main drum 41 rope closing time matches, and in the time putting rope, general orientation wheel 64 will fall back on the limit of reverse-flighted screw 63, can not make very soon and also hawser turmoil, so do not need by three-way rope hole 644 because put the speed of rope.And being fallen back on to this action need main drum 41 on the limit of reverse-flighted screw 63, upper saw pulley 64 rotates together this certain trouble that operates.Now sprocket wheel 65 is fixed in described the first rotating shaft 4 by key, main drum 41 does not rotate and can make upper saw pulley 64 move yet like this, makes main drum 41 put rope operation before and becomes convenient.

Because the power between the first rotating shaft 4 and reverse-flighted screw 63 is by chain transmission, damage and may snap in foreign matter between chain and sprocket wheel 65, also may clamp workman's health, therefore described chain and sprocket wheel 65 arranged outside have chain wheel cover 66, described chain wheel cover 66 is generally by two half symmetrical sheet chain wheel cover 66 amalgamation welding in the time of processing, and then be fixed on the second wall frame 13, and the edge welding at chain wheel cover 66 is very thin, be difficult to chain wheel cover 66 to aim at and weld, generally need many people compounding practice.In the present embodiment, on the described chain wheel cover 66 of the half cooperatively interacting, be provided with chute 661, described in two, chute 661 cooperatively interacts, in described chute 661, be inserted with inserted sheet 662, wait so when mounted the chain wheel cover 66 of two half is aimed at, then in chute 661, insert described inserted sheet 662 and can guarantee that the laminating between chain wheel cover 66 is smooth described in two and half sheets, and described in two and half sheets, the two ends of chain wheel cover 66 are provided with flange 663, on described flange 663, be provided with fourth hole, between described flange 663, be bolted, between described inserted sheet 662 and described chain wheel cover 66, also adopt bolt to fix.

Claims

1. the oil hydraulic cylinder for deep water net drawing machine brake structure, comprise the first oil hydraulic cylinder (56), it is characterized in that: on the piston rod (561) of described the first oil hydraulic cylinder (56), be provided with the block (562) vertical with piston rod (561), between described block (562) and described the first oil hydraulic cylinder (56) bottom, be provided with spring (563).