CN112030757A

CN112030757A - Anchor casting machine for mooring of pontoon bridge

Info

Publication number: CN112030757A
Application number: CN202010852165.7A
Authority: CN
Inventors: 梁敏; 黄新磊; 焦宝山
Original assignee: China Harzone Industry Corp Ltd
Current assignee: China Harzone Industry Corp Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2020-12-04

Abstract

The invention discloses an anchor casting machine for anchoring a pontoon bridge, which relates to the technical field of anchoring, wherein during anchor casting, a gear shifting handle is pulled to a fast gear, a wedge clutch is separated, the rotation limiting effect between a winding drum and a main shaft is relieved, and the winding drum can rotate relative to the main shaft; the operator takes the anchor off the pontoon bridge joint, the steel wire rope is pulled out, and the anchor is thrown into the water after reaching the anchoring place; at the moment, the steel wire rope is in a loose state, the rocking handle is sleeved on the transmission shaft, the rocking handle is rotated, the bevel gear transmission assembly drives the winding drum to rotate, and the steel wire rope is gradually retracted; after the steel wire rope is tightened, the gear shifting handle is pulled to a slow gear, the wedge clutch is combined, the rotation of the winding drum relative to the main shaft is limited, the worm wheel and the winding drum can rotate synchronously, the rocking handle is taken down from the transmission shaft and sleeved on the worm, the worm is rotated, the worm wheel is driven to drive the main shaft to rotate, the winding drum is driven to rotate, and the steel wire rope is slowly retracted under the acting force of the winding drum until the pontoon bridge joint is gradually stabilized relative to the anchor.

Description

Anchor casting machine for mooring of pontoon bridge

Technical Field

The invention relates to the technical field of anchoring, in particular to an anchor throwing machine for anchoring a pontoon bridge.

Background

In the use process of the pontoon bridge, the pontoon bridge deviates under the influence of water flow, wind speed, vehicle braking force and the like, and the pontoon bridge needs to be fixed in order to reduce the influence of the use environment on the pontoon bridge. The fixing method of the pontoon bridge comprises anchoring and fixing, anchoring portal bridge and transverse tension line fixing, etc. The anchoring gate bridge is fixed by utilizing the overwater power of the gate bridge, has a complex structure and a large number of operating people, and is suitable for occasions with high flow speed; the tension rope fixing (including oblique tension rope fixing and transverse tension rope fixing) is implemented by fixing the tension rope fixing device on the floating bridge above the water surface, but the tension rope fixing needs to arrange steel cables on a river, the operation is complex, and the erection river section of the pontoon bridge does not have the condition of arranging the steel cables. The anchoring and fixing are the most common fixing mode, and the anchoring and fixing have the characteristics of simple structure, convenience in operation, short operation preparation time, less time consumption for completing the operation, high safety degree and the like; however, most of the anchor windlasses in the prior art are used for ships and are not suitable for the limited space of the pontoon bridge body.

Disclosure of Invention

In view of the above, the invention provides an anchor casting machine for anchoring a pontoon bridge, which has a compact structure and is simple to operate, and can be accurately used for casting and fixing the pontoon bridge in a limited space.

The technical scheme of the invention is as follows: an anchor throwing machine for mooring a pontoon bridge, comprising: the device comprises a frame, a winding drum, a main shaft, a wedge clutch, a bevel gear transmission assembly, a worm and gear transmission assembly and a steel wire rope;

the winding drum is of a cylinder structure with openings at two ends, and the peripheries of the two ends of the winding drum are supported on the frame through sliding bearings; one end of the bevel gear transmission component is sleeved and fixed on the periphery of the winding drum, and the other end of the bevel gear transmission component is used as a power input end; the main shaft penetrates through a center hole of the winding drum, the middle part of the winding drum is rotatably supported on the main shaft, one end of the main shaft is connected with the winding drum through a wedge clutch, and the other end of the main shaft is installed on the rack through a rolling bearing, wherein the wedge clutch acts to lock or unlock the rotation limit of the winding drum relative to the main shaft;

one end of the worm gear transmission assembly is coaxially sleeved and fixed on the main shaft, and the other end of the worm gear transmission assembly is used as a power input end;

one end of the steel wire rope is wound on the winding drum, and the other end of the steel wire rope is connected with the anchor;

when the wedge clutch unlocks the winding drum and the main shaft, the winding drum is in a fast gear, the bevel gear transmission assembly is driven, and the winding drum can be driven to fast wind or unwind a steel wire rope; when the wedge clutch locks the winding drum with the main shaft, the winding drum is in a slow gear, the worm gear and worm transmission assembly is driven, and the winding drum can be driven to slowly wind or unwind the steel wire rope.

Preferably, the bevel gear transmission assembly comprises: the transmission shaft is vertical to the axial direction, and the bevel gear I and the bevel gear II are meshed in the circumferential direction; the middle part of transmission shaft passes through the bearing and supports in the frame, and its one end is fixed with bevel gear I, and the other end is as the input, can be for I input drive power of bevel gear, and II suits of bevel gear are fixed in the periphery of reel.

Preferably, transmission shaft one end is square column shape for with outside rocking handle cooperation in order to increase application of force moment, the other end sets up flat keyway, is used for being connected with I flat key of bevel gear.

Preferably, the wedge clutch comprises two mutually matched parts, one part is connected with the main shaft in a spline mode, and the other part is fixedly connected with the winding drum.

Preferably, the method further comprises the following steps: and a shift handle connected with the wedge clutch and capable of switching between a fast gear and a slow gear along with the action of the wedge clutch.

Preferably, the worm gear assembly comprises: the worm and the worm wheel are matched with each other, the worm is a power input end, two ends of the worm are supported on the rack through rolling bearings, and the worm wheel is coaxially sleeved and fixed on the main shaft.

Preferably, the peripheries of two axial ends of the winding drum are provided with baffles for limiting the steel wire rope wound on the baffles.

Preferably, the method further comprises the following steps: the brake device comprises a brake belt and a brake handle, wherein the brake belt is sleeved on the periphery of a winding drum at the end of a slow gear and is connected with a brake drum arranged on the winding drum, the brake belt is connected with the brake handle, and the brake handle is operated to drive the brake belt to rub against the brake drum of the winding drum so as to brake the winding drum.

Has the advantages that:

1. the anchor throwing machine has the advantages of compact structure, simplicity in operation, capability of being used in the limited space of the pontoon bridge body, and higher operation efficiency and anchoring reliability.

2. The bevel gear transmission assembly is arranged specifically, so that reliable transmission with the winding drum can be realized, and the structure can be effectively guaranteed to be compact.

3. The specific arrangement of the gear shifting handle can enable the wedge clutch to be rapidly switched between a high gear and a low gear.

4. The baffle arranged on the periphery of the winding drum can effectively limit the steel wire rope wound on the winding drum.

5. The brake belt and the brake handle arranged in the invention can accurately brake the winding drum in time.

Drawings

Figure 1 is a front view of the present invention.

Figure 2 is a top view of the present invention.

Fig. 3 is a schematic structural view of the steel cord of the present invention.

The automatic transmission device comprises a transmission shaft 1, a rack 2, a winding drum 3, a main shaft 4, a brake belt 5, a worm 6, a worm wheel 7, a bevel gear I8, a wedge clutch 9, a gear shifting handle 10, a brake handle 11, a rocking handle 12, a steel wire rope 13 and a bevel gear II 14.

Detailed Description

The invention is described in detail below by way of example with reference to the accompanying drawings.

The embodiment provides an anchor throwing machine for mooring a pontoon bridge, which has compact structure and simple operation and can be accurately used for mooring and fixing the pontoon bridge in a limited space.

As shown in fig. 1 and 2, the anchorages comprising: the gear-shifting mechanism comprises a transmission shaft 1, a frame 2, a winding drum 3, a main shaft 4, a worm 6, a worm wheel 7, a bevel gear I8, a bevel gear II 14, a wedge clutch 9 (a jaw clutch which is a gear-shifting mechanism), a gear-shifting handle 10 and a steel wire rope 13.

The connection relation of the anchor throwing machine is as follows: the frame 2 is connected with a pontoon bridge joint through two rows of bolts, the two ends of the anchor throwing machine are respectively a fast gear and a slow gear, a power assembly of the fast gear is a bevel gear transmission assembly, and a power assembly of the slow gear is a worm and gear transmission assembly; the bevel gear transmission assembly comprises: the transmission shaft 1, a bevel gear I8 and a bevel gear II 14 are vertical to each other in the axial direction and meshed in the circumferential direction; the middle part of the transmission shaft 1 is supported on the rack 2 at the end where the fast gear is located through a bearing, one end of the transmission shaft is fixed with a bevel gear I8, the other end of the transmission shaft serves as an input end and can input driving force for the bevel gear I8, and a bevel gear II 14 is sleeved and fixed on the periphery of the winding drum 3 (the bevel gear II 14 is connected with the winding drum 3 through a flat key); the winding drum 3 is a cylinder structure with openings at two ends, and the peripheries of the two ends of the winding drum are supported on the frame 2 through sliding bearings;

the main shaft 4 penetrates through a center hole of the winding drum 3, the middle part of the winding drum 3 is rotatably supported on the main shaft 4, the end of the main shaft 4 where a fast gear is located is connected with the winding drum 3 through a wedge clutch 9 (one part of the wedge clutch 9 is in splined connection with the main shaft 4, the other part of the wedge clutch is fixedly connected with the winding drum 3), the rotation limit of the winding drum 3 relative to the main shaft 4 can be locked or the rotation limit can be unlocked, and the end of the slow gear is mounted on the rack 2 through a rolling bearing;

the worm gear drive assembly includes: the worm 6 and the worm wheel 7 are matched with each other, the worm 6 is a power input end, two ends of the worm are supported on the rack 2 through a rolling bearing, and the worm wheel 7 is coaxially sleeved and fixed on the main shaft 4 (the worm wheel 7 is connected with the main shaft 4 through a flat key) to realize indirect connection with the winding drum 3;

when the two parts of the wedge tooth clutch 9 are combined, the wedge tooth clutch 9 has a limiting effect on the rotation between the winding drum 3 and the main shaft 4, the worm wheel 7 and the winding drum 3 can synchronously rotate, at the moment, the worm 6 is in a slow gear, and the worm wheel 6 is rotated to drive the worm wheel 7 to rotate, so that the winding drum 3 slowly collects or discharges the steel wire rope 13, at the moment, a large acting force is needed for collecting or discharging the steel wire rope 13, and the winding drum 3 cannot rotate reversely due to the self-locking function of the worm and gear transmission assembly; when the two parts of the wedge clutch 9 are separated, the rotation limiting effect between the winding drum 3 and the main shaft 4 is removed, the winding drum 3 can rotate relative to the main shaft 4, the synchronous rotation relation between the worm wheel 7 and the winding drum 3 is further removed, at the moment, the gear is at a fast gear, the bevel gear I8 is driven to rotate through the transmission shaft 1, the bevel gear II 14 is driven to rotate fast, the steel wire rope 13 can be wound or unwound quickly through the winding drum 3, and at the moment, the steel wire rope 13 can be wound or unwound with a small acting force;

wherein, one end of the steel wire rope 13 is orderly wound on the winding drum 3, and the other end is connected with the anchor through the shackle; the gear shifting handle 10 is fixedly connected with the wedge clutch 9 and can be switched between a fast gear and a slow gear along with the action of the wedge clutch 9; the external crank handle 12 can be detachably connected to the drive shaft 1 and the worm 6, respectively, so as to switch between the drive shaft 1 and the worm 6.

The working principle of the anchor throwing machine is as follows: during anchoring operation, the gear shifting handle 10 is pulled to a fast gear to drive the two parts of the wedge clutch 9 to separate, the rotation limiting effect between the winding drum 3 and the main shaft 4 is relieved, and the winding drum 3 can rotate relative to the main shaft 4 at the moment; the operator takes the anchor off the pontoon bridge joint, the steel wire rope 13 is pulled out, and the anchor is thrown into the water after reaching the anchoring place; at the moment, the steel wire rope 13 is in a loose state, the rocking handle 12 is sleeved on the transmission shaft 1, the rocking handle 12 is rotated, the winding drum 3 is driven to rotate through the bevel gear transmission assembly, and the steel wire rope 13 is gradually retracted; after the steel wire rope 13 is tightened, the gear shifting handle 10 is pulled to a slow gear, the two parts of the wedge clutch 9 are combined, the rotation of the winding drum 3 relative to the main shaft 4 is limited, the worm wheel 7 and the winding drum 3 can synchronously rotate, the rocking handle 12 is taken down from the transmission shaft 1 and sleeved on the worm 6, the worm 6 is rotated, the worm wheel 7 is driven to drive the main shaft 4 to rotate, the winding drum 3 is driven to rotate, and the steel wire rope 13 is slowly retracted under the acting force of the winding drum 3 until the pontoon bridge joint is gradually stabilized relative to the anchor;

the recovery operation process of the anchor is opposite to the anchor throwing operation process;

the anchor throwing machine can be arranged on a plurality of bridge sections of the pontoon bridge to throw anchors, the work among all the anchors is not influenced mutually, and the loosening of a single anchor can not endanger the safety of the pontoon bridge.

Further, the transmission shaft 1 is formed by processing alloy steel, one end of the transmission shaft is in a square column shape and is used for being matched with the crank handle 12, and the other end of the transmission shaft is provided with a flat key groove which is used for being connected with a flat key of the bevel gear I8;

furthermore, the frame 2 is used as a bearing part of the anchor throwing machine and is formed by welding high-strength low-alloy steel, and one end of the frame is provided with two mounting holes which are vertical to each other in the axial direction and used for mounting a bevel gear I8 and a bevel gear II 14; the other end is of a semi-closed frame structure and is used for installing one end of the main shaft 4, the worm 6 and the worm wheel 7;

furthermore, baffles are arranged on the peripheries of two axial ends of the winding drum 3 and used for limiting the steel wire rope 13 wound on the baffles;

further, this anchor thrower still includes: the brake device comprises a brake belt 5 and a brake handle 11, wherein the brake belt 5 is sleeved on the periphery of a winding drum 3 at the end of a slow gear and is connected with a brake drum arranged on the winding drum 3, the brake belt 5 is connected with the brake handle 11, and the brake handle 11 is operated to drive the brake belt 5 to rub with the brake drum of the winding drum 3 so as to brake the winding drum 3;

further, the main shaft 4 is machined from alloy steel;

further, the worm 6 is machined from alloy steel, the number of the heads of the worm 6 is odd, and the pressure angle is 20 degrees;

further, the worm wheel 7 is made of cast aluminum bronze.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An anchor throwing machine for mooring a pontoon bridge is characterized by comprising: the device comprises a rack (2), a winding drum (3), a main shaft (4), a wedge clutch (9), a bevel gear transmission assembly, a worm and gear transmission assembly and a steel wire rope (13);

the frame (2) is connected with a pontoon bridge joint, the winding drum (3) is of a cylinder structure with two open ends, and the peripheries of the two ends of the winding drum are supported on the frame (2) through sliding bearings; one end of the bevel gear transmission component is sleeved and fixed on the periphery of the winding drum (3), and the other end of the bevel gear transmission component is used as a power input end; the main shaft (4) penetrates through a center hole of the winding drum (3), the middle part of the winding drum (3) is rotatably supported on the main shaft (4), one end of the main shaft (4) is connected with the winding drum (3) through a wedge clutch (9), the other end of the main shaft is installed on the rack (2) through a rolling bearing, and the wedge clutch (9) acts to realize locking or unlocking of the rotation limit of the winding drum (3) relative to the main shaft (4);

one end of the worm gear and worm transmission assembly is coaxially sleeved and fixed on the main shaft (4), and the other end of the worm gear and worm transmission assembly is used as a power input end;

one end of the steel wire rope (13) is wound on the winding drum (3), and the other end of the steel wire rope is connected with the anchor;

when the wedge clutch (9) unlocks the winding drum (3) and the main shaft (4), the winding drum is in a fast gear, the bevel gear transmission assembly is driven, and the steel wire rope (13) can be driven to quickly retract or release the winding drum (3); when the wedge clutch (9) locks the winding drum (3) and the main shaft (4), the gear is in a slow gear, the worm gear and worm transmission assembly is driven, and the steel wire rope (13) can be slowly wound or unwound by the winding drum (3).

2. The mooring windlass of claim 1, wherein the bevel gear assembly comprises: the bevel gear mechanism comprises a transmission shaft (1), a bevel gear I (8) and a bevel gear II (14), wherein the bevel gears I (8) and II are mutually vertical in axial direction and meshed in circumferential direction; the middle part of transmission shaft (1) passes through the bearing and supports in frame (2), and its one end is fixed with bevel gear I (8), and the other end is as the input, can be for bevel gear I (8) input drive power, bevel gear II (14) suit and fix in the periphery of reel (3).

3. The mooring windlass for boats and bridges as defined in claim 2, wherein the driving shaft (1) has a square cylindrical shape at one end for engagement with an external crank handle (12) to increase the moment of force application and a flat key groove at the other end for flat key connection with the bevel gear i (8).

4. An anchor handling machine for mooring a navicular bridge according to claim 1, wherein said wedge clutch (9) comprises two parts cooperating with each other, one part being splined to the main shaft (4) and the other part being fixedly connected to the spool (3).

5. The mooring windlass of claim 1, further comprising: and a shift lever (10) that is connected to the wedge clutch (9) and can be switched between a fast gear and a slow gear in accordance with the operation of the wedge clutch (9).

6. The mooring windlass as defined in claim 1, wherein the worm gear assembly comprises: worm (6) and worm wheel (7) of mutually supporting, worm (6) are power input end, and its both ends are supported on frame (2) through antifriction bearing, worm wheel (7) coaxial suit is fixed on main shaft (4).

7. The mooring windlass as defined in claim 1, wherein the drum (3) has a stopper on the outer circumference of both axial ends thereof for limiting the wire rope (13) wound thereon.

8. The mooring windlass of claim 1, further comprising: braking area (5) and brake handle (11), braking area (5) suit is in reel (3) periphery of slow-speed gear place end to be connected with the brake drum that sets up on reel (3), and braking area (5) link to each other with brake handle (11), and operation brake handle (11) can drive the brake drum friction of braking area (5) and reel (3), realize the braking to reel (3).