CN111661777B

CN111661777B - Rope pressing device

Info

Publication number: CN111661777B
Application number: CN202010322477.7A
Authority: CN
Inventors: 吴恒; 白福余
Original assignee: Wuhan Marine Machinery Plant Co Ltd
Current assignee: Wuhan Marine Machinery Plant Co Ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2022-08-30
Anticipated expiration: 2040-04-22
Also published as: CN111661777A

Abstract

The utility model provides a rope pressing device belongs to mechanical equipment technical field. Comprises a pressure roller, a rocker arm, a bracket, a first clapboard and an elastic component. The pressure roller is fixedly connected with one end of the rocker arm, the middle of the rocker arm is hinged with the bracket, the first partition plate is positioned on the bracket, and the plate surface of the first partition plate is parallel to the hinge axis of the rocker arm. The elastic component comprises a connecting bolt, a nut and a spring, a first through hole is formed in the first partition plate, the connecting bolt is located in the first through hole, one end of the connecting bolt is connected with the other end of the rocker arm, the nut is connected to the other end of the connecting bolt, the spring sleeve is arranged on the connecting bolt, one end of the spring is abutted to the nut, the other end of the spring is abutted to the first partition plate, and the elastic component is simple in structure and convenient to disassemble and assemble and can improve the maintenance efficiency of the rope pressing device.

Description

Rope pressing device

Technical Field

The disclosure relates to the technical field of mechanical equipment, in particular to a rope pressing device.

Background

The winch drives the traction piece to pull the heavy object through the rotation of the winding drum, one end of the traction piece is fixed on the winch, the other end of the traction piece is used for connecting the heavy object, and the traction piece is usually a steel wire rope, a cable rope and the like. By taking a steel wire rope as an example, in the working process of rope winding and rope unwinding of the winch, the steel wire rope is easily wound unevenly on a winding drum of the winch, so that a rope disorder phenomenon occurs, and in order to avoid the rope disorder phenomenon, a rope pressing device is usually required to be arranged.

The rope pressing device in the related art generally includes a base, a pressing roller, a rocker arm and a spring, wherein the pressing roller is generally cylindrical and parallel to a rotating shaft of a drum of the winch, and presses a steel wire rope wound on the drum from a top of the winch, the pressing roller is connected to the rocker arm hinged to the base, the rocker arm can drive the pressing roller to rotate relative to the base, two ends of the spring are respectively connected to the rocker arm and the base, and the pressing roller presses the steel wire rope on the winch by self-weight and a pulling force provided by the spring, so as to prevent a rope disorder phenomenon.

After pressing the rope device to work for a long time, the spring for providing the clamp force often need be dismantled and get off to maintain or change, and the rope device of pressing among the correlation technique is dismantling when changing the spring because the spring is longer, and needs to dismantle the connection position of spring and rocking arm and base respectively, and the dismouting step is loaded down with trivial details, and maintenance efficiency is low.

Disclosure of Invention

The embodiment of the disclosure provides a rope pressing device which is convenient to disassemble and assemble and capable of improving the maintenance efficiency of the rope pressing device. The technical scheme is as follows:

in a first aspect, an embodiment of the present disclosure provides a rope pressing device, including: a press roller, a rocker arm, a bracket, a first clapboard and an elastic component,

the pressure roller is fixedly connected with one end of the rocker arm;

the middle part of the rocker arm is hinged with the bracket, and the hinge axis of the rocker arm is parallel to the axis of the pressure roller;

the first partition plate is positioned on the bracket, and the plate surface of the first partition plate is parallel to the hinge axis of the rocker arm;

the elastic component comprises a connecting bolt, a nut and a spring, a first through hole is formed in the first partition plate, the connecting bolt is installed in the first through hole, one end of the connecting bolt is connected with the other end of the rocker arm, the nut is connected with the other end of the connecting bolt, the spring is sleeved on the connecting bolt, one end of the spring abuts against the nut, and the other end of the spring abuts against the first partition plate.

Optionally, the connecting bolt is a swing bolt, and the other end of the rocker arm is hinged to the connecting bolt.

Optionally, the bracket includes a second partition plate connected to the first partition plate, a plate surface of the second partition plate is perpendicular to a hinge axis of the rocker arm, and a middle portion of the rocker arm is hinged to the second partition plate.

Optionally, the support still include with the third baffle that first baffle is connected, the third baffle with the second baffle is parallel, connecting bolt is located the second baffle with between the third baffle, the second baffle with all have the spout on the face of third baffle, the extending direction of spout with connecting bolt is parallel, the other end of rocking arm with connecting bolt is articulated through first pivot, the both ends of first pivot are located respectively the spout of second baffle with in the spout of third baffle.

Optionally, the pressure roller comprises an inner cylinder and an outer cylinder, the outer cylinder is rotatably sleeved outside the inner cylinder, and one end of the rocker arm is connected with the inner cylinder.

Optionally, the pressure roller further comprises a plurality of rolling bearings, the plurality of rolling bearings are sleeved on the outer wall of the inner cylinder, and the outer walls of the plurality of rolling bearings are attached to the inner wall of the outer cylinder. .

Optionally, the inner cylinder has an oil cavity, at least one end face of the inner cylinder has an oil filling port communicated with the oil cavity, and the side wall of the inner cylinder has an oil outlet communicated with the oil cavity.

Optionally, the press roller further comprises an elastic sleeve sleeved outside the outer cylinder.

Optionally, the rope pressing device includes two rocker arms, and two ends of the pressing roller are connected to one rocker arm respectively.

Optionally, the elastic assembly further includes a gasket, and the gasket is sleeved on the connecting bolt and located between the nut and one end of the spring.

The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:

the spring and the nut and the connecting bolt in the elastic assembly are assembled on the vertical support in a matched mode, when the rope pressing device is assembled, the spring is sleeved on the connecting bolt between the nut and the first partition plate on the vertical support, and the spring is in a compressed state by screwing the nut. In the process of releasing the rope from the winch, the thickness of a steel wire rope on a winding drum of the winch is gradually reduced in the radial direction, the pressure roller presses downwards under the action of gravity, meanwhile, the spring in a compressed state can also extend under the action of elasticity to give stress to the end face of the nut close to one side of the plate face of the first partition plate, and the rocker arm rotates around the hinge axis of the rocker arm under the action of the stress and the gravity of the pressure roller, so that the pressure roller always keeps pressing the steel wire rope on the winding drum in the rope releasing process, and the spring does not need to be connected between the rocker arm and the base respectively. On guaranteeing to press the rope device to the compressing tightly basis of the pulling piece on the winch reel, when needs maintain the spring with the change, only need with the nut by connecting bolt on take off can demolish the spring, simple structure, easy dismounting has improved the maintenance efficiency who presses the rope device.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural view of a related art rope pressing device;

FIG. 2 is a front view of a rope pressing device provided by the embodiment of the disclosure;

FIG. 3 is a structural plan view of a rope pressing device provided by the embodiment of the disclosure;

FIG. 4 is a schematic structural diagram of a rocker arm provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a connecting bolt provided in the embodiments of the present disclosure;

FIG. 6 is an enlarged view of a partial structure of a rope pressing device provided by the embodiment of the disclosure;

FIG. 7 is a structural left side view of a rope pressing device provided by the embodiment of the disclosure;

fig. 8 is a structural sectional view of a press roller according to an embodiment of the disclosure;

fig. 9 is a structural left side view of another rope pressing device provided by the embodiment of the disclosure.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a related art tether pressing device. As shown in fig. 1, the rope pressing device includes a base 100, a pressing roller 101, a rocker 102 and a spring 103, the pressing roller 101 is parallel to the rotation axis of the drum 103 of the winch and presses a steel wire rope 105 wound on the drum 104, the pressing roller 101 is connected to the rocker 102 hinged to the base, the rocker 102 can drive the pressing roller 101 to rotate, two ends of the spring 103 are respectively connected to the rocker 102 and the base 100, and the pressing roller 101 presses the steel wire rope 105 on the drum 104 by the self-weight and the pulling force provided by the spring 103 to prevent the rope disorder phenomenon. After the rope pressing device works for a long time, the spring 102 is usually required to be detached for maintenance or replacement, when the spring 103 is detached and replaced, the spring 103 is long, and the connecting parts of the spring 103, the rocker arm 102 and the base 100 are required to be detached respectively, so that the detaching step is complicated, and the maintenance efficiency is low.

Fig. 2 is a structural front view of a rope pressing device provided in the embodiment of the disclosure. As shown in fig. 2, the rope pressing device comprises a pressing roller 1, a rocker arm 2, a bracket 3, a first partition 31 and an elastic assembly 4. Wherein, the pressure roller 1 is fixedly connected with one end of the rocker arm 2.

Fig. 3 is a structural plan view of a rope pressing device provided by the embodiment of the disclosure. Referring to fig. 2 and 3, the middle of the rocker arm 2 is hinged to the bracket 3, and the hinge axis of the rocker arm 2 is parallel to the axis of the press roller 1. Exemplarily, in the embodiment of the present disclosure, the middle portion of the swing arm 2 is hinged with the bracket 3 through the second rotating shaft 7.

The first partition plate 31 is positioned on the bracket 3, and the plate surface of the first partition plate 31 is parallel to the hinge axis of the rocker arm 2, i.e. the axis of the second rotating shaft 7.

The elastic component 4 comprises a connecting bolt 41, a nut 42 and a spring 43, a first through hole 311 is formed in the first partition plate 31, the connecting bolt 41 is installed in the first through hole 311, one end of the connecting bolt 41 is connected with the other end of the rocker arm 2, the nut 42 is connected to the other end of the connecting bolt 41, the spring 43 is sleeved on the connecting bolt 41, one end of the spring 43 abuts against the nut 42, and the other end of the spring 43 abuts against the first partition plate 31.

In the embodiment of the present disclosure, the bracket 3 includes a base 5 for fixedly connecting with the ground, the winch m may be mounted on the base 5 of the bracket 3, the pressure roller 1 is generally cylindrical and parallel to the axial direction of a drum on the winch m, the rocker arm 2 may be V-shaped, the pressure roller 1 is fixedly connected with one end of the rocker arm 2, the middle portion of the rocker arm 2 is hinged to the bracket 3 through a second rotating shaft 7, and the rocker arm 2 may drive the pressure roller 1 to rotate around the second rotating shaft 7 and press on the drum of the winch m. The other end of the rocker arm 2 is connected with one end of a connecting bolt 41 in the elastic component 4, a screw rod of the connecting bolt 41 penetrates through the first partition plate 31 on the bracket 3, the other end of the connecting bolt 41 is connected with a nut 42, a spring 43 is sleeved on the screw rod of the connecting bolt 41, and two ends of the spring 43 are respectively abutted against the nut 42 and the first partition plate 31. When the winch m is not used for releasing the rope, the thickness of the steel wire rope wound on the winding drum is the largest in the radial direction of the winding drum, and the spring 43 can be set to be in a compressed state; when the winch m releases the rope, the thickness of the steel wire rope on the winding drum is gradually reduced in the radial direction, the pressure roller 1 is pressed down under the action of gravity, meanwhile, the spring 43 in a compressed state can also extend under the action of elastic force to give stress to the end face of the nut 42 close to one side of the plate surface of the first partition plate 31, and the rocker arm 2 rotates clockwise around the second rotating shaft 7 under the stress and the action of the gravity of the pressure roller 1, so that the pressure roller 1 always keeps pressing the steel wire rope on the winding drum in the rope releasing process. On the contrary, when the winch m takes up the rope, since the steel wire rope is rewound onto the drum, the radial thickness of the drum gradually increases, and further the steel wire rope is pushed against the pressure roller 1 and drives the rocker arm 2 to rotate counterclockwise along the second rotating shaft 7, the nut 42 on the connecting bolt 41 moves toward the direction close to the first partition plate 31, and the spring 43 is compressed again to take back the state of the winch m when the rope is not paid out, thereby completing a rope paying-out and taking-up process.

According to the rope pressing device provided by the embodiment of the disclosure, the spring and the nut and the connecting bolt in the elastic assembly are assembled on the vertical support in a matched mode, when the rope pressing device is assembled, the spring is sleeved on the connecting bolt between the nut and the first partition plate on the vertical support, and the nut is screwed to enable the spring to be in a compressed state. In the process of releasing the rope from the winch, the thickness of a steel wire rope on a winding drum of the winch is gradually reduced in the radial direction, the pressure roller presses downwards under the action of gravity, meanwhile, the spring in a compressed state can also extend under the action of elasticity to give stress to the end face of the nut close to one side of the plate face of the first partition plate, and the rocker arm rotates around the hinge axis of the rocker arm under the action of the stress and the gravity of the pressure roller, so that the pressure roller always keeps pressing the steel wire rope on the winding drum in the rope releasing process, and the spring does not need to be connected between the rocker arm and the base respectively. On guaranteeing to press the rope device to the compressing tightly basis of the pulling piece on the winch reel, when needs maintain the spring with the change, only need with the nut by connecting bolt on take off can demolish the spring, simple structure, easy dismounting has improved the maintenance efficiency who presses the rope device.

Fig. 4 is a schematic structural diagram of a rocker arm provided by an embodiment of the present disclosure, as shown in fig. 3 and 4, for example, in an embodiment of the present disclosure, the rocker arm 2 may include a first connecting rod 21 and a second connecting rod 22 that are fixedly connected, where the first connecting rod 21 is connected with the pressure roller 1, the second connecting rod 22 is connected with the connecting bolt 41, the first connecting rod 21 and the second connecting rod 22 are connected in a V-shape, and the second rotating shaft 7 passes through a connecting position of the first connecting rod 21 and the second connecting rod 22. Through setting up rocking arm 2 to be the V-arrangement structure of angle setting by first connecting rod 21 and second connecting rod 22, can reduce rocking arm 2 length on the horizontal direction to reduce the space that the rope pressing device occupy, improved the practicality of rope pressing device.

Optionally, the elastic assembly 4 may further include a washer 44, and the washer 44 is sleeved on the connecting bolt 41 and located between the nut 42 and one end of the spring 43. Since the nut 42 and the spring 43 are usually made of metal, the spring 43 directly abuts against the end surface of the nut 42 during the rope unwinding and rope winding process of the winch m and during the process of disassembling the nut 42, which is likely to cause abrasion of the spring 43 and the nut 42, and is not favorable for long-term use of the elastic assembly 4. Through cup jointing gasket 44 on the screw rod of connecting bolt 41 between nut 42 and spring 43, can separate between the terminal surface of nut 42 and the spring 43, avoid direct contact to cause wearing and tearing, improved elastic component 4's life, and then also improved the life of pressing the rope device.

For example, in the embodiment of the present disclosure, in order to avoid abrasion between the spring 43 and the plate surface of the first partition plate 31 due to friction, a gasket 44 may be further sleeved between the other end of the spring 43 and the first partition plate 31, so as to further improve the service life of the bracket 3.

Fig. 5 is a schematic structural diagram of a connection bolt provided in an embodiment of the present disclosure. As shown in fig. 3 to 5, the connecting bolt 41 may alternatively be a swing bolt, and the other end of the swing arm 2, i.e., the end of the second connecting rod 22 remote from the connection with the first connecting rod 21, is hinged to the connecting bolt 41. After the rope pressing device is used for a long time, the connecting bolt 41 is a part for transmitting the stress of the spring 43, the fatigue life and reliability are also reduced, and maintenance and replacement are required. One end of the slipknot bolt is provided with an eyelet 411, and by adopting the slipknot bolt, when the second connecting rod 22 of the rocker arm 2 is fixedly connected, the eyelet 411 of the connecting bolt 41 and the rocker arm 2 can be hinged through the first rotating shaft 6. When the connecting bolt 41 needs to be maintained and replaced, the first rotating shaft 6 is only required to be taken out from the hole 411 of the connecting bolt 41, so that the connecting bolt 41 and the rocker arm 2 can be separated, the structure is simple, the dismounting is convenient, and the maintenance efficiency of the rope pressing device is further improved.

Alternatively, the stand 3 may include a second partition 32 connected to the first partition 31, a plate surface of the second partition 32 being perpendicular to the hinge axis of the swing arm 2, and a middle portion of the swing arm 2 being hinged to the second partition 32. In the embodiment of the present disclosure, the second partition plate 32 connected to the first partition plate 31 is disposed on the bracket 3, the hinge axis of the rocker arm 2 and the bracket 3, that is, the second rotating shaft 7 is perpendicular to the plate surface of the second partition plate 32 and passes through the second partition plate 32, and the middle part of the rocker arm 2 is hinged to the second partition plate 32 through the second rotating shaft 7, so that the connection between the rocker arm 2 and the bracket 3 is realized.

Fig. 6 is an enlarged partial structure view of a rope pressing device provided in an embodiment of the present disclosure, and with reference to fig. 2 and fig. 3, the bracket 3 may further include a third partition plate 33 connected to the first partition plate 31, the third partition plate 33 is parallel to the second partition plate 32, the connecting bolt 41 is located between the second partition plate 32 and the third partition plate 33, the plate surfaces of the second partition plate 32 and the third partition plate 33 are respectively provided with a sliding slot 3a, the extending direction of the sliding slot 3a is parallel to the connecting bolt 41, the other end of the rocker arm 2 is hinged to the connecting bolt 41 through the first rotating shaft 6, and two ends of the first rotating shaft 6 are respectively located in the sliding slot 3a of the second partition plate 32 and the sliding slot 3a of the third partition plate 33.

When the winch m releases the rope, the pressure roller 1 presses down under the action of gravity, and at the same time, the spring 43 in a compressed state also extends under the action of elastic force to give stress to the end face of the nut 42 close to the plate surface side of the first partition plate 31, the rocker arm 2 rotates clockwise around the second rotating shaft 7 under the stress and the action of the gravity of the pressure roller 1, and at the moment, the second rotating shaft 7 also follows the other end of the rocker arm 2 and the connecting bolt 41 to generate certain displacement along the extending direction of the connecting bolt 41. On the contrary, when the winch m receives the rope, since the steel wire rope is wound back to the drum again, the radial thickness of the drum gradually increases, and then the steel wire rope abuts against the pressure roller 1 and drives the rocker arm 2 to rotate counterclockwise along the second rotating shaft 7, the nut 42 on the connecting bolt 41 moves toward the direction close to the first partition plate 31, and accordingly, the second rotating shaft 7 also returns to the position when the rope is not released along the extending direction of the connecting bolt 41. In the embodiment of the present disclosure, by providing the third partition plate 33 parallel to the second partition plate 32, and providing the sliding grooves 3a for the second rotating shaft 7 to slide on the second partition plate 32 and the third partition plate 33, two ends of the second rotating shaft 7 are respectively installed in the sliding grooves 3a on the second partition plate 32 and the third partition plate 33, so that the assembly structure and the support structure of the bracket 3 between the rocker arm 2 and the elastic component 4 are more stable, and the service life of the rope pressing device is further prolonged.

Exemplarily, with reference to fig. 1, in the embodiment of the present disclosure, the rope pressing device may further include a split pin 8, one end of the first rotating shaft 6 may be provided with a first pin hole 61 disposed along the radial direction, the split pin 8 may be inserted into the first rotating shaft 6 through the first pin hole 61, and during the rotation of the rocker arm 2, the split pin 8 may perform a limit stop on a possible displacement of the second rotating shaft 7 in the axial direction of the first rotating shaft 6, so as to prevent the first rotating shaft 6 from falling off from the sliding groove 3a of the second partition 32, and further improve the assembly stability of the rope pressing device.

Exemplarily, one end of the second rotating shaft 7 may also be provided with a second pin hole arranged along the radial direction, the cotter pin 8 may also be inserted into the second rotating shaft 7 through the second pin hole, and in the rotating process of the rocker arm 2, the cotter pin 8 may limit and block the displacement of the second rotating shaft 7 which may occur in the axial direction of the second rotating shaft 7, so as to avoid the second rotating shaft 7 from falling off from the connecting part of the bracket 3 and the rocker arm 2, and further improve the assembling stability of the rope pressing device.

Fig. 7 is a structural left side view of a rope pressing device provided by the embodiment of the disclosure. As shown in fig. 7, the rope pressing device may comprise two rocker arms 2, and two ends of the press roller 1 are connected with one rocker arm 2. In the embodiment of the present disclosure, one ends of two rocker arms 2 are symmetrically connected to two ends of the pressure roller 1, and during the process of releasing and receiving the rope in the winch m, the rocker arms 2 receive the gravity of the pressure roller 1 or the stress of the winding drum during the rotation of the pressure roller 1, and if only one rocker arm 2 is provided, all the stresses are concentrated at the connection between the rocker arm 2 and the pressure roller 1, so that fatigue deformation and even breakage are likely to occur, which further affects the normal operation of the rope pressing device, and reduces the service life. In the embodiment of the disclosure, by arranging the two rocker arms 2 symmetrically connected to the two ends of the pressure roller 1, the stress can be evenly dispersed in the connection structure of the two rocker arms 2 and the pressure roller 1, so that the connection structure is more stable, the occurrence of fatigue deformation and breakage damage is avoided, and the service life of the rope pressing device is further prolonged.

Fig. 8 is a structural sectional view of a press roller according to an embodiment of the present disclosure. As shown in fig. 8, the pressure roller 1 includes an inner cylinder 11 and an outer cylinder 12, the outer cylinder 12 is rotatably fitted around the outer portion of the inner cylinder 11, and one end of the rocker arm 2 is connected to the inner cylinder 11. The pressure roller 1 is usually a metal structure, and if the pressure roller 1 is directly pressed against the steel wire rope on the drum, friction is generated between the outer surface of the pressure roller 1 and the steel wire rope during the processes of releasing and retracting the rope, which is likely to cause wear of the pressure roller 1, and is not favorable for long-term use of the pressure roller 1. In the embodiment disclosed in the present disclosure, the press roller 1 includes an inner cylinder 11 and an outer cylinder 12, one end of the rocker arm 2 is fixedly connected with the inner cylinder 11, and the outer cylinder 12 is rotatably sleeved outside the inner cylinder 11. In the process of reeling and unreeling the rope by the winding drum, the outer cylinder 12 of the pressure roller 1 is in contact with the steel wire rope, the steel wire rope is pressed in the radial direction of the winding drum, the steel wire rope is orderly reeled and unreeled, meanwhile, the outer cylinder 12 rotates around the inner cylinder 11 under the action of the friction force of the steel wire rope, the rolling friction force generated by the outer surface of the outer cylinder 12 and the steel wire rope is far smaller than the sliding friction force generated when the steel wire rope cannot directly rotate, the phenomenon that the outer surface of the pressure roller 1 is abraded too fast due to overlarge friction force is avoided, and the service life of the rope pressing device is further prolonged.

Exemplarily, in the embodiment of the present disclosure, the connection manner of connecting two rocker arms 2 with the pinch roller 1 is used as an example, and in other possible implementation manners, three, four or more rocker arms 2 may be provided to connect with the inner cylinder 11 of the pinch roller 1 according to the specific length and size of the pinch roller 1, and fig. 9 is a left side view of another structure of the rope pressing device provided in the embodiment of the present disclosure. As shown in fig. 9, the rope pressing device includes three rocker arms 2, one rocker arm 2 is connected to the middle of the inner cylinder 11, and the other two rocker arms 2 are disposed at two sides of the rocker arm 2 and connected to the inner cylinder 11, so as to improve the strength of the connection structure between the rocker arm 2 and the press roller 1 and avoid fatigue deformation and breakage damage, which is not limited in the embodiment of the present disclosure.

Referring to fig. 8 again, optionally, the pressure roller 1 further includes a plurality of rolling bearings 13, the plurality of rolling bearings 13 are sleeved on the outer wall of the inner cylinder 11, and the outer walls of the plurality of rolling bearings 13 are attached to the inner wall of the outer cylinder 12. Both the inner tube 11 and the outer tube 12 of the pressure roller 1 are usually made of metal structures, and if the outer tube 12 is directly sleeved outside the inner tube 11, when the outer tube 12 rotates relative to the inner tube 11, friction is generated between the inner surface of the outer tube 12 and the outer surface of the inner tube 11, which is also easy to cause abrasion, and is not beneficial to long-term use of the pressure roller 1. In the embodiment of the present disclosure, by installing the plurality of rolling bearings 13 between the inner cylinder 11 and the outer cylinder 12, the rolling friction between the inner cylinder 11 and the outer cylinder 12 can be further reduced, abrasion between the outer wall of the inner cylinder 11 and the inner wall of the outer cylinder 12 due to long-term use can be avoided, and the service life of the rope pressing device can be further prolonged.

Exemplarily, in the embodiment of the present disclosure, a plurality of rolling bearings 13 are uniformly arranged in an annular space between the inner cylinder 11 and the outer cylinder 12 at intervals along the axial direction of the pinch roller 1, when the winch m performs the rope unwinding and rope winding processes, and the outer cylinder 12 rotates around the inner cylinder 11 under the friction force of the steel wire rope, the stress applied to each rolling bearing 13 in the radial direction of the pinch roller 1 is more even, so as to avoid that a single rolling bearing 13 is crushed due to an excessive stress, which affects the normal use of the pinch roller 1, and further improve the service life of the rope pressing device.

Alternatively, the inner tube 11 has an oil chamber 111, the oil chamber 111 extends in the axial direction of the inner tube 11, an oil filler port 112 communicating with the oil chamber 111 is provided on at least one end surface of both ends of the inner tube 11, and a plurality of oil outlet ports 113 communicating with the oil chamber 111 are provided on a side wall of the inner tube 11. The inner tube 11, the outer tube 12 and the rolling bearing 13 of the pressure roller 1 are usually metal structural members, and are easily corroded by exposure to air for a long time, so that the inner tube 11, the outer tube 12 and the rolling bearing 13 are stuck by rusting, and normal use of the pressure roller 1 is affected. In the embodiment of the present disclosure, the oil chamber 111 is provided in the inner cylinder 11, the oil filling port 112 communicating with the oil chamber 111 is provided on at least one end surface of both ends of the inner cylinder 11, and the plurality of oil outlets 113 communicating with the oil chamber 111 are provided on the side wall of the inner cylinder 11. When the rope pressing device is not used, a worker can inject lubricating oil into the oil cavities 111 through oil injection ports 112 at two ends of the inner cylinder 11, the lubricating oil flows into an annular space between the inner cylinder 11 and the outer cylinder 12 from an oil outlet 113 through the oil cavities 111, and the outer surface of the inner cylinder 11 and the inner surface of the outer cylinder 12, and the rolling bearing 13 additionally arranged between the inner cylinder 11 and the outer cylinder 12 are lubricated to avoid corrosion. Meanwhile, the friction force among the contact surfaces of the inner cylinder 11, the outer cylinder 12 and the rolling bearing 13 can be further reduced, abrasion is avoided, and the service life of the rope pressing device is further prolonged.

Exemplarily, in the embodiment of the present disclosure, the pressure roller 1 may further include a hook-type oil nipple 15, and after the lubricating oil is filled into the oil cavity 111, the oil cavity 111 may be blocked by cooperatively connecting the hook-type oil nipple 15 and the oil filling port 112, so as to avoid leakage of the lubricating oil from the oil filling port 112 during rotation of the outer cylinder 12 around the inner cylinder 11, avoid waste, and further improve the practicability of the rope pressing device.

Exemplarily, in the embodiment of the present disclosure, since the rope pressing device includes two rocker arms 2, the two rocker arms 2 are sleeved on the outer surface of the inner cylinder 11 and fixedly connected with the inner cylinder 11 through bolts. And the outer cylinder 12 is divided into a first cylinder 121, a second cylinder 122 and a third cylinder 123, wherein the second cylinder 122 is located between the joints of the two swing arms 2 and the inner cylinder 11, the first cylinder 121 and the third cylinder 123 are respectively located on two opposite sides of the joints of the two swing arms 2 and the inner cylinder 11 with the second cylinder 122, and the structure of the inner cylinder 11 is a corresponding structural arrangement according to the number of the swing arms 2, which is only an example. In other possible implementations, if the two rocker arms 2 are respectively connected to two ends of the inner cylinder 11, the outer cylinder 12 may also adopt a complete cylinder structure, which is not limited in this disclosure.

Exemplarily, in the embodiment of the present disclosure, the oil chamber 111 includes a first cavity 1111 and a second cavity 1112, and both ends of the inner cylinder 11 respectively have a first oil injection port 1121 and a second oil injection port 1122 which are communicated with the oil chamber 111, wherein the first oil injection port 1121 is communicated with the first cavity 1111, the second oil injection port 1122 is communicated with the second cavity 1112, and the first cavity 1111 and the second cavity 1112 are isolated from each other. The inner cylinder 11 comprises a first oil outlet 1131, a second oil outlet 1132 and a third oil outlet 1133, wherein one end of the first oil outlet 1131 is communicated with the first cavity 1111, and the other end of the first oil outlet 1131 is communicated with the annular space between the first cylinder 121 and the inner cylinder 11; one end of the second oil outlet 1132 is communicated with the first cavity 1111, and the other end of the second oil outlet 1132 is communicated with an annular space between the second cylinder 122 and the inner cylinder 11; one end of the third oil outlet 1133 is communicated with the second cavity 1112, and the other end of the third oil outlet 1133 is communicated with the annular space between the third cylinder 123 and the inner cylinder 11. The lubricating oil injected through the first oil ports 1121 can lubricate the annular spaces between the first cylinder 121, the second cylinder 122, and the inner cylinder 11 at the same time, and the lubricating oil injected through the second oil ports 1122 can lubricate the lubricating oil between the third cylinder 123 and the inner cylinder 11 at the same time.

Optionally, the press roller 1 further comprises an elastic sleeve 14, the elastic sleeve 14 being sleeved on the outside of the outer cylinder 12. Since the press roller 1 is usually a metal structure, the steel wire rope is also abraded to some extent in the process of contacting with the steel wire rope. By sleeving the elastic sleeve 14 outside the outer cylinder 12, the outer surface of the outer cylinder 12 of the pinch roller 1 is prevented from directly contacting with the steel wire rope, meanwhile, the abrasion to the outer surface of the outer cylinder 12 and the outer surface of the steel wire rope is avoided, and the practicability of the rope pressing device is further improved.

The elastic sleeve 14 may be, for example, a rubber sleeve.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims

1. A rope pressing device is characterized by comprising: a pressure roller (1), a rocker (2), a bracket (3), a first clapboard (31) and an elastic component (4),

the pressure roller (1) is fixedly connected with one end of the rocker arm (2);

the middle part of the rocker arm (2) is hinged with the bracket (3), and the hinge axis of the rocker arm (2) is parallel to the axis of the press roller (1);

the first partition plate (31) is positioned on the bracket (3), the plate surface of the first partition plate (31) is parallel to the hinge axis of the rocker arm (2), the bracket (3) comprises a second partition plate (32) connected with the first partition plate (31), the plate surface of the second partition plate (32) is perpendicular to the hinge axis of the rocker arm (2), the middle part of the rocker arm (2) is hinged on the second partition plate (32), the bracket (3) further comprises a third partition plate (33) connected with the first partition plate (31), the third partition plate (33) is parallel to the second partition plate (32), the connecting bolt (41) is positioned between the second partition plate (32) and the third partition plate (33), sliding grooves (3a) are respectively arranged on the plate surfaces of the second partition plate (32) and the third partition plate (33), the extending direction of the sliding grooves (3a) is parallel to the connecting bolt (41), the other end of the rocker arm (2) is hinged to the connecting bolt (41) through a first rotating shaft (6), two ends of the first rotating shaft (6) are respectively located in a sliding groove (3a) of the second partition plate (32) and a sliding groove (3a) of the third partition plate (33), the width of the sliding groove (3a) is not smaller than the diameter of the first rotating shaft (6), and the width direction of the sliding groove (3a) is parallel to the first partition plate (31);

the elastic component (4) comprises a connecting bolt (41), a nut (42) and a spring (43), a first through hole (311) is formed in the first partition plate (31), the connecting bolt (41) is located in the first through hole (311), one end of the connecting bolt (41) is hinged to the first rotating shaft (6), one end of the connecting bolt (41) and the other end of the rocker arm (2) are distributed on the first rotating shaft (6) at intervals, the nut (42) is connected to the other end of the connecting bolt (41), the spring (43) is sleeved on the connecting bolt (41), one end of the spring (43) is abutted to the nut (42), and the other end of the spring (43) is abutted to the first partition plate (31),

the pressure roller (1) comprises an inner cylinder (11) and an outer cylinder (12), the outer cylinder (12) is rotatably sleeved outside the inner cylinder (11), one end of the rocker arm (2) is connected with the inner cylinder (11),

the rope pressing device comprises two rocker arms (2), wherein the two rocker arms (2) are sleeved on the outer surface of the inner barrel (11) and are fixedly connected with the inner barrel (11) through bolts, the outer barrel (12) comprises a first barrel (121), a second barrel (122) and a third barrel (123), the second barrel (122) is located between the two rocker arms (2), and the first barrel (121) and the third barrel (123) are respectively located on two opposite sides of the joint of the two rocker arms (2) and the inner barrel (11) with the second barrel (122).

2. Rope-pressing device according to claim 1, characterized in that the connecting bolt (41) is a swing bolt, the other end of the swing arm (2) being hinged to the connecting bolt (41).

3. The rope pressing device as claimed in claim 1, wherein the rope pressing roller (1) further comprises a plurality of rolling bearings (13), the plurality of rolling bearings (13) are sleeved on the outer wall of the inner cylinder (11), and the outer walls of the plurality of rolling bearings (13) are attached to the inner wall of the outer cylinder (12).

4. The rope pressing device as claimed in claim 1, wherein the inner cylinder (11) has an oil chamber (111) therein, at least one end face of the inner cylinder (11) has an oil filling port (112) communicated with the oil chamber (111), and the side wall of the inner cylinder (11) has an oil outlet (113) communicated with the oil chamber (111).

5. Rope pressing arrangement according to claim 1, characterized in that the press roller (1) further comprises an elastic sleeve (14), which elastic sleeve (14) is sleeved outside the outer cylinder (12).

6. The rope pressing device according to claim 1 or 2, characterized in that the rope pressing device comprises two rocker arms (2), and both ends of the pressing roller (1) are connected with one rocker arm (2) respectively.

7. The rope pressing device according to claim 1 or 2, characterized in that the elastic assembly (4) further comprises a spacer (44), and the spacer (44) is sleeved on the connecting bolt (41) and is located between the nut (42) and one end of the spring (43).