A multi-functional hydraulic towing winch

Abstract

The present invention discloses a multi-functional hydraulic towing winch, which comprises a main wall frame and a first-stage transmission gear unit, a second-stage transmission gear unit, a lower drum device and an upper drum device arranged on the main wall frame. The first-stage transmission gear unit meshes with the second-stage transmission gear unit, and the second-stage transmission gear unit meshes with the lower drum device and the upper drum device respectively. An upper drum brake is arranged on the left side of the upper drum device, and an upper drum ratchet assembly is arranged on the right side; a lower drum brake is arranged on the right side of the lower drum device, and a lower drum ratchet assembly is arranged on the left side; left and right bow winches are respectively connected to the two ends of the drum shaft head of the lower drum device. The present invention can not only realize the towing function and the anchor operation function, but also realize the self-anchoring and weighing anchor functions of the workboat itself.

Description

Technical Field

[0001] The invention relates to a towing cable technology for an ocean working vessel, and more particularly to a multifunctional hydraulic towing cable machine. Background Art

[0002] The marine three-purpose workboat is an indispensable marine vessel in the process of installing, operating, maintaining, guarding oil fields, supplying hydraulic cargo and deck cargo, etc., and the hydraulic towing winch is a key accessory of the ship. The deck of the workboat should not only be equipped with a hydraulic towing winch, but also with the anchor windlass for the workboat's own anchor operation. However, with the need to improve the capacity of the workboat, the structure of the hydraulic towing winch is getting larger and larger. If the windlass is arranged at the same time, it will inevitably lead to crowded deck space, or even insufficient arrangement, which will indirectly hinder the improvement of the workboat's capacity. In addition, arranging the windlass and hydraulic towing winch at the same time will inevitably be detrimental to cost savings.

[0003] The brake device of a general hydraulic towing winch is required to have normal braking and emergency braking functions. The conventional design is equipped with a spring-loaded band brake. Normal braking is controlled by hydraulic oil to open and close the brake, and emergency braking can only be performed by a handwheel or spring on the band brake. This design increases the overall size of the machine to a certain extent, which is not conducive to making full use of the deck space.

[0004] In the existing patent technology, such as publication number CN204750488U, a hydraulic towing machine device is provided, including a base, wall frames are respectively installed on both sides of the base of the base, a bridge frame is arranged between the two wall frames, a load shaft device is installed parallel and symmetrically between the two wall frames, a hydraulic drive device is installed at the outer end of the wall frame on one side, a clutch device is installed at the output end of the hydraulic drive device, the clutch device is supported on the bridge frame, and a brake device is also installed on the load shaft device. For example, the publication number CN204873655U provides a double-drum hydraulic towing winch, including a frame, a drum, a rope arrangement device, a brake device and a clutch device; the drum includes an upper drum and a lower drum staggered and distributed on the frame; a rope arrangement device is provided between the upper drum and the lower drum; a brake device is provided at one end of the upper drum and the other end of the lower drum respectively; there is also a transmission main shaft between the upper drum and the lower drum, and a clutch device is provided on the main shaft; the rope arrangement device includes a rope arrangement device and a transmission mechanism; the brake device is composed of a support, a brake cylinder, a connecting rod mechanism, a brake belt, a brake belt support, a support rod and a pin sensor; the clutch device includes a clutch A and a clutch B for clutching the upper and lower drums respectively. However, the above two patent technologies also do not solve the problem of making full use of the deck space and realizing multi-functional operations. Summary of the invention

[0005] In view of the above-mentioned defects existing in the prior art, the object of the present invention is to provide a multi-functional hydraulic towing winch, which can not only realize the towing function and the anchor operation function, but also realize the function of the workboat's own anchoring and weighing anchor.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A multi-functional hydraulic towing winch, comprising a main wall frame and a first-stage transmission gear unit, a second-stage transmission gear unit, a lower drum device and an upper drum device provided on the main wall frame. The first-stage transmission gear unit meshes with the second-stage transmission gear unit, and the second-stage transmission gear unit meshes with the lower drum device and the upper drum device respectively;

[0008] An upper drum brake is provided on the left side of the upper drum device, and an upper drum ratchet assembly is provided on the right side;

[0009] A lower drum brake is provided on the right side of the lower drum device, and a lower drum ratchet assembly is provided on the left side;

[0010] Left and right side windlasses are respectively connected to the two ends of the drum shaft of the lower drum device.

[0011] Preferably, the main wall frame is an open wall frame with a trough-shaped cross-section.

[0012] Preferably, the second-stage transmission gear unit meshes with the lower drum device through a lower drum clutch, and the lower drum clutch is connected to the lower drum device through a lower drum gear ring;

[0013] The second-stage transmission gear unit meshes with the upper drum device through an upper drum clutch, and the upper drum clutch is connected to the upper drum device through an upper drum gear ring.

[0014] Preferably, the upper drum ratchet assembly includes an upper drum ratchet and an upper drum ratchet operating rod;

[0015] The upper drum ratchet is provided on the lower side of the upper drum device and is adapted to the ratchet wheel of the upper drum device;

[0016] The upper drum ratchet operating rod is provided on the outside of the main wall frame.

[0017] Preferably, the lower drum ratchet assembly includes a lower drum ratchet and a lower drum ratchet operating rod;

[0018] The lower drum ratchet is provided on the right side of the lower drum device and is adapted to the ratchet wheel of the lower drum device;

[0019] The lower drum ratchet operating rod is provided on the outside of the main wall frame.

[0020] Preferably, the port anchor winch is arranged on the left side of the main wall frame and includes a port anchor winch wall frame, a port anchor sprocket assembly, a port anchor winch belt brake, a port anchor winch jaw semi-clutch, and a port anchor winch drive shaft;

[0021] The port anchor sprocket assembly and the port anchor winch drive shaft are arranged on the port anchor winch wall frame;

[0022] The port anchor winch belt brake is arranged on the hub of the port anchor sprocket assembly, and the tight side of the port anchor winch belt brake is arranged on the port anchor winch wall frame;

[0023] The port anchor winch jaw semi-clutch is arranged at the end of the port anchor winch drive shaft, and the right end of the port anchor winch jaw semi-clutch points to the lower drum device.

[0024] Preferably, a lower drum jaw clutch feature is provided on one end of the drum shaft head of the lower drum device;

[0025] The lower drum jaw clutch feature is engaged with the port anchor winch jaw semi-clutch through a port anchor winch fork.

[0026] Preferably, the starboard anchor winch is arranged on the right side of the main wall frame and includes a starboard anchor winch wall frame, a starboard anchor sprocket assembly, a starboard anchor winch belt brake, a starboard anchor winch jaw semi-clutch, and a starboard anchor winch drive shaft;

[0027] The starboard anchor sprocket assembly and the starboard anchor winch drive shaft are arranged on the starboard anchor winch wall frame;

[0028] The starboard anchor winch belt brake is arranged on the hub of the starboard anchor sprocket assembly, and the tight side of the starboard anchor winch belt brake is arranged on the starboard anchor winch wall frame;

[0029] The starboard anchor winch jaw semi-clutch is arranged at the end of the starboard anchor winch drive shaft, and the right end of the starboard anchor winch jaw semi-clutch points to the lower drum device.

[0030] Preferably, a lower drum jaw clutch feature is provided on the other end of the drum shaft head of the lower drum device;

[0031] The lower drum jaw clutch feature is engaged with the starboard anchor winch jaw semi-clutch through a starboard anchor winch fork.

[0032] A multifunctional hydraulic towing winch provided by the present invention can be applied to a triple-purpose workboat equipped with a towing winch, ensuring that in the case of limited deck space on the ship, the combined towing and anchor winch structure is compact and has a sufficiently small shape. A technical solution for a new emergency braking function is proposed, which saves costs to a certain extent, and the workboat itself can realize anchoring and weighing anchor. A ratchet and pawl device is respectively arranged on the drum to realize the emergency braking function of the towing winch as a new technology. Claw clutches are respectively arranged at both ends of the lower drum shaft, and the anchor winch clutch provides driving force for the starboard and port anchor winches. The advantages of this design are as follows: an open main wall frame with a trough-shaped cross-section is adopted; the ratchet and pawl device is used to realize the emergency braking function, the brake design is optimized and its external dimensions are reduced, thereby ensuring that the external dimensions of the main engine structure are sufficiently small and reducing the overall weight of the machine; the claw clutch feature is added to the drum shaft head to provide power for the starboard and port anchor winches, eliminating two sets of hydraulic drive systems, saving costs and improving the utilization rate of the hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 FIG. is a schematic structural diagram of the multifunctional hydraulic towing winch of the present invention;

[0034] Figure 2 is Figure 1 a cross-sectional schematic diagram of

[0035] Figure 3 FIG. is a schematic diagram of the claw clutch feature of the upper and lower drums of the lower drum device in the multifunctional hydraulic towing winch of the present invention;

[0036] Figure 4 FIG. is a schematic diagram of the ratchet and pawl on the lower drum device in the multifunctional hydraulic towing winch of the present invention;

[0037] Figure 5 FIG. is a schematic diagram of the ratchet and pawl on the upper drum device in the multifunctional hydraulic towing winch of the present invention;

[0038] Figure 6 FIG. is a schematic diagram of the main wall frame in the multifunctional hydraulic towing winch of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In order to better understand the above technical solutions of the present invention, the technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0040] Combined with Figure 1 and Figure 2 as shown, a multifunctional hydraulic towing winch provided by the present invention includes a main wall frame 3 and a first-stage transmission gear unit 1, a second-stage transmission gear unit 4, a lower drum device 5, an upper drum device 6, and a rope arranging device 2 installed on the main wall frame 3. The first-stage transmission gear unit 1 meshes with the second-stage transmission gear unit 4, and the second-stage transmission gear unit 4 meshes with the lower drum device 5 and the upper drum device 6 respectively.

[0041] On the left side of the upper drum device 6, there is an upper drum brake 16, and on the right side, an upper drum ratchet assembly 14 is installed.

[0042] On the right side of the lower drum device 5, there is a lower drum brake 15, and on the left side, a lower drum ratchet assembly 13 is installed.

[0043] At both ends of the drum shaft heads of the lower drum device 5, a port anchor winch 11 and a starboard anchor winch 9 are respectively connected.

[0044] Both the upper drum device 6 and the lower drum device 5 are composed of components such as drum shaft heads, cylinders, bearing seats, band brakes, ratchets, open type gear rings, etc.

[0045] Combined Figure 6 As shown, the main wall frame 3 is an open wall frame with a channel-shaped cross-section, which can reduce the weight of the main engine structure and lower the cost.

[0046] The secondary transmission gear unit 4 meshes with the lower drum device 5 through the lower drum clutch 8, and the lower drum clutch 8 is connected to the lower drum device 5 through the lower drum gear ring 503.

[0047] The secondary transmission gear unit 4 meshes with the upper drum device 6 through the upper drum clutch 7, and the upper drum clutch 7 is connected to the upper drum device 6 through the upper drum gear ring 602.

[0048] Combined Figure 5 As shown, the upper drum ratchet assembly 14 includes an upper drum ratchet 1401 and an upper drum ratchet operating lever 1402. The upper drum ratchet 1401 is installed on the lower side of the upper drum device 6 and is adapted to be used with the ratchet 601 of the upper drum device 6; the upper drum ratchet operating lever 1402 is installed on the outside of the main wall frame 3.

[0049] Combined Figure 3 and Figure 4 As shown, the lower drum ratchet assembly 13 includes a lower drum ratchet 1301 and a lower drum ratchet operating lever 1302. The lower drum ratchet 1301 is installed on the right side of the lower drum device 5 and is adapted to be used with the ratchet 507 of the lower drum device 5; the lower drum ratchet operating lever 1302 is installed on the outside of the main wall frame 3.

[0050] The port windlass 11 is installed on the left side of the main wall frame 3 and includes a port windlass wall frame 1101, a port anchor sprocket assembly 1102, a port windlass belt brake 1103, a port windlass jaw semi-clutch 1104, and a port windlass drive shaft 1105. The port anchor sprocket assembly 1102 and the port windlass drive shaft 1105 are installed together on the port windlass wall frame 1101; the port windlass belt brake 1103 is installed on the hub of the port anchor sprocket assembly 1102, and the tight side of the port windlass belt brake 1103 is fixed to the port windlass wall frame 1101; the port windlass jaw semi-clutch 1104 is installed at the end of the port windlass drive shaft 1105, and the right end of the port windlass jaw semi-clutch 1104 points to the lower drum device 5.

[0051] A lower drum jaw clutch feature 501 is installed on one end of the drum shaft head of the lower drum device 5, and the lower drum jaw clutch feature 501 meshes with the port windlass jaw semi-clutch 1104 through the port windlass fork 12.

[0052] The starboard windlass 9 is installed on the right side of the main wall frame and includes a starboard windlass wall frame 905, a starboard anchor sprocket assembly 904, a starboard windlass belt brake 903, a starboard windlass jaw semi-clutch 901, and a starboard windlass drive shaft 902. The starboard anchor sprocket assembly 904 and the starboard windlass drive shaft 902 are installed together on the starboard windlass wall frame 905; the starboard windlass belt brake 903 is installed on the hub of the starboard anchor sprocket assembly 904, and the tight side of the starboard windlass belt brake 903 is fixed to the starboard windlass wall frame 905.

[0053] The starboard windlass jaw semi-clutch 901 is installed at the end of the starboard windlass drive shaft 902, and the right end of the starboard windlass jaw semi-clutch 901 points to the lower drum device 5.

[0054] A lower drum jaw clutch feature 506 is also installed on the other end of the drum shaft head of the lower drum device 6, and the lower drum jaw clutch feature 506 meshes with the starboard windlass jaw semi-clutch 901 through the starboard windlass fork 10.

[0055] Refer again to Figures 1 to 6 As shown, the working principle of the multifunctional hydraulic towing winch of the present invention is as follows:

[0056] Towing function: The hydraulic power source drives the first-stage transmission gear unit 1 to output torque, and the torque is transmitted through the gear pair formed with the second-stage transmission gear unit 4. When the upper drum clutch 7 is in the meshing state with the second-stage transmission gear unit 4, the torque is transmitted to the upper drum device 6 through the upper drum gear ring 602. Thus, by closing and opening the upper drum brake 16, the towing operation and cable releasing operation of the upper drum device 6 can be realized.

[0057] Anchor handling function: The hydraulic power source drives the first-stage transmission gear unit 1 to output torque, and the torque is transmitted through the gear pair formed with the second-stage transmission gear unit 4. When the lower winch clutch 8 is engaged with the second-stage transmission gear unit 4, the torque is transmitted to the lower winch device 5 through the lower winch gear ring 503. Thus, by closing and opening the upper winch brake 16, the anchor handling function operation of the lower winch device 5 can be realized.

[0058] Self-anchoring and unanchoring function of the workboat (port anchor winch 11): The hydraulic power source drives the first-stage transmission gear unit 1 to output torque, and the torque is transmitted through the gear pair formed with the second-stage transmission gear unit 4. When the lower winch clutch 8 is engaged with the second-stage transmission gear unit 4, the torque is transmitted to the lower winch device 5 through the lower winch gear ring 503. At this time, it is necessary to tighten the lower winch rope end and operate the port anchor winch fork 12 to make the port anchor winch clutch 1104 engage with the lower winch jaw clutch feature 501, providing the working torque for unanchoring the port anchor winch 11. When the port anchor winch clutch 1104 is disengaged, the port anchor winch band brake 1103 is operated for unanchoring operation. The port anchor sprocket 1102 rotates around the port anchor winch drive shaft 1105. After unanchoring is completed, the port anchor winch band brake 1103 is tightened. At this time, the anchor chain tension is transmitted to the deck through the port anchor winch wall frame 1101.

[0059] Self-anchoring and unanchoring function of the workboat (starboard anchor winch 9): The hydraulic power source drives the first-stage transmission gear unit 1 to output torque, and the torque is transmitted through the gear pair formed with the second-stage transmission gear unit 4. When the lower winch clutch 8 is engaged with the second-stage transmission gear unit 4, the torque is transmitted to the lower winch device 5 through the lower winch gear ring 503. At this time, it is necessary to tighten the lower winch rope end and operate the starboard anchor winch fork 10 to make the starboard anchor winch clutch 901 engage with the lower winch jaw clutch feature 506, providing the working torque for unanchoring the starboard anchor winch 9. When the starboard anchor winch clutch 901 is disengaged, the starboard anchor winch band brake 903 is operated for unanchoring operation. The starboard anchor sprocket 904 rotates around the starboard anchor winch drive shaft 902. After unanchoring is completed, the port anchor winch band brake 1103 is tightened. At this time, the anchor chain tension is transmitted to the deck through the port anchor winch wall frame 1101.

[0060] Emergency braking is divided into upper winch emergency braking and lower winch emergency braking:

[0061] When the lower winch brake 15 loses external power, operate the lower winch pawl operating rod 1302 in the lower winch pawl assembly 13 to make the lower winch pawl 1301 engage with the lower winch ratchet 507, realizing full braking without power, and further realizing the emergency braking function of the lower winch device 5 under emergency conditions.

[0062] When the upper reel brake 16 loses external power, operate the upper reel pawl operating rod 1402 in the upper reel pawl assembly 14 to engage the upper reel pawl 1401 with the upper reel ratchet wheel 601, so as to achieve full braking without power, and further realize the emergency braking function of the upper reel device 6 under emergency conditions.

[0063] Those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as within the scope of the essential spirit of the present invention, changes and modifications to the above-described embodiments will fall within the scope of the claims of the present invention.

Claims

1. A multifunctional hydraulic towing winch, comprising a main wall frame and a first-stage transmission gear unit, a second-stage transmission gear unit, a lower drum device and an upper drum device provided on the main wall frame. The first-stage transmission gear unit meshes with the second-stage transmission gear unit, and the second-stage transmission gear unit meshes with the lower drum device and the upper drum device respectively. It is characterized in that: On the left side of the upper drum device, there is an upper drum brake, and on the right side, there is an upper drum ratchet assembly; On the right side of the lower drum device, there is a lower drum brake, and on the left side, there is a lower drum ratchet assembly; On the two ends of the drum shaft head of the lower drum device, a port anchor winch and a starboard anchor winch are respectively connected; The port anchor winch is arranged on the left side of the main wall frame and includes a port anchor winch wall frame, a port anchor sprocket assembly, a port anchor winch band brake, a port anchor winch jaw clutch and a port anchor winch drive shaft; The port anchor sprocket assembly and the port anchor winch drive shaft are arranged on the port anchor winch wall frame; The port anchor winch band brake is arranged on the hub of the port anchor sprocket assembly, and the tight side of the port anchor winch band brake is arranged on the port anchor winch wall frame; The port anchor winch jaw clutch is arranged at the end of the port anchor winch drive shaft, and the right end of the port anchor winch jaw clutch points to the lower drum device; The starboard anchor winch is arranged on the right side of the main wall frame and includes a starboard anchor winch wall frame, a starboard anchor sprocket assembly, a starboard anchor winch band brake, a starboard anchor winch jaw clutch and a starboard anchor winch drive shaft; The starboard anchor sprocket assembly and the starboard anchor winch drive shaft are arranged on the starboard anchor winch wall frame; The starboard anchor winch band brake is arranged on the hub of the starboard anchor sprocket assembly, and the tight side of the starboard anchor winch band brake is arranged on the starboard anchor winch wall frame; The starboard anchor winch jaw clutch is arranged at the end of the starboard anchor winch drive shaft, and the right end of the starboard anchor winch jaw clutch points to the lower drum device.

2. The multi-functional hydraulic cable winch according to claim 1, wherein: The main wall frame is an open wall frame with a trough-shaped cross-section.

3. The multifunctional hydraulic cable winch according to claim 1, characterized in that: The second-stage transmission gear unit meshes with the lower drum device through a lower drum clutch, and the lower drum clutch is connected to the lower drum device through a lower drum gear ring; The second-stage transmission gear unit meshes with the upper drum device through an upper drum clutch, and the upper drum clutch is connected to the upper drum device through an upper drum gear ring.

4. The multi-functional hydraulic towing winch according to claim 1, characterized in that: The upper drum ratchet assembly includes an upper drum ratchet and an upper drum ratchet operating rod; The upper drum ratchet is arranged on the lower side of the upper drum device and is adapted to the ratchet of the upper drum device; The upper drum ratchet operating rod is arranged on the outside of the main wall frame.

5. The multifunctional hydraulic cable winch according to claim 1, characterized in that: The lower drum ratchet assembly includes a lower drum ratchet and a lower drum ratchet operating rod; The lower drum ratchet is arranged on the right side of the lower drum device and is adapted to the ratchet of the lower drum device; The lower drum ratchet operating rod is arranged on the outside of the main wall frame.

6. The multi-functional hydraulic cable winch according to claim 1, wherein: On one end of the drum shaft head of the lower drum device, there is a lower drum jaw clutch feature; The lower drum jaw clutch feature meshes with the port anchor winch jaw clutch through a port anchor winch fork.

7. The multifunctional hydraulic cable winch according to claim 1, characterized in that: The other end of the drum shaft of the lower drum device is provided with a feature of a lower drum jaw clutch; The feature of the lower drum jaw clutch is engaged with the jaw semi-clutch of the starboard windlass through the starboard windlass fork.

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