CN219279353U

CN219279353U - Crane rope brake

Info

Publication number: CN219279353U
Application number: CN202320406968.9U
Authority: CN
Inventors: 胡建修
Original assignee: Henan Electric Hydraulic Brake Co ltd
Current assignee: Henan Electric Hydraulic Brake Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-06-30
Anticipated expiration: 2033-03-07

Abstract

The utility model relates to the technical field of brakes, in particular to a crane rope brake. The brake device comprises a base, wherein brake arms are symmetrically and rotatably connected to the left side and the right side of the base, brake shoes are rotatably connected to the bottom of each brake arm, brake pads are fixedly connected to one sides, close to each other, of the two brake shoes, a driving assembly is arranged between the two brake arms, a first rotating shaft is rotatably connected to the top of the brake arm on the left side, and an adjusting mechanism is rotatably connected to the top of the brake arm on the right side; the beneficial effects of the utility model are as follows: the user only needs to adjust the position of second pivot on the threaded rod through two adjusting nut, can make the initial distance between two brake shoes diminish, guarantees that two brake pads can still effectively brake the rope sheave even under the circumstances that receives wearing and tearing, improves the braking effect, prolongs the life of stopper, need not to change the brake shoe frequently, practices thrift use cost.

Description

Crane rope brake

Technical Field

The utility model relates to the technical field of brakes, in particular to a crane rope brake.

Background

A crane is a device for lifting and moving objects, which is usually provided with a pulley block in order to increase the lifting capacity, which pulley block comprises several pulleys, which pulley block is arranged to reduce the force required for lifting the object, and to change the direction of the force, when lifting the object, the rope is passed around the pulleys in the pulley block, so that the pulleys can also be called sheaves, and in the process of lifting and moving the object, brakes are often used for braking the sheaves, so that the object to be lifted is stabilized.

The conventional rope wheel brake has the following problems when braking a rope wheel:

1. after the traditional rope wheel brake is used for a long time, the brake pad on the rope wheel brake can be worn and thinned, so that enough friction force cannot be provided for the rope wheel during braking, and the braking effect is affected.

2. In the process of releasing the rope wheel brake, the conventional rope wheel brake cannot be completely separated from the rope wheel due to different swing amplitudes of the two brake arms, and certain friction still exists between the brake pad and the rope wheel, so that the service life of the rope wheel brake is influenced.

Accordingly, there is a need for a crane rope brake to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the problems, the utility model provides a crane rope brake, which effectively solves the problems in the background technology.

The utility model provides a hoist rope brake, includes the base, the left and right sides symmetry rotation of base is connected with the brake arm, every the bottom of brake arm is all rotated and is connected with the brake shoe, two the equal fixedly connected with brake lining in one side that the brake shoe is close to each other, two be equipped with drive assembly between the brake arm the top of brake arm is rotated and is connected with first pivot, is located the left side the top of brake arm is rotated and is connected with adjustment mechanism, drive assembly's stiff end and first pivot rotate and are connected, drive assembly's power take off end and adjustment mechanism fixed connection, the top of base is equipped with moves back the equal mechanism of moment.

Above-mentioned hoist rope brake, adjustment mechanism includes second pivot and threaded rod, the second pivot rotates to be connected and is being located the right side the top of brake arm, the threaded rod runs through the middle part of second pivot, the threaded rod can slide in the second pivot, drive assembly's power take off end and the left end fixed connection of threaded rod, threaded rod is last threaded connection have two be located respectively the adjusting nut of second pivot left and right sides.

Above-mentioned hoist rope brake, move back the equal mechanism of square includes connecting plate and top piece, connecting plate fixed connection is in the top of base, two screw holes have been seted up to the symmetry on the connecting plate, the quantity of top piece has two, two equal slidable mounting of top piece is at the top of connecting plate, two all set up the bar groove on the top piece, two equal threaded connection of screw hole has positioning bolt.

Above-mentioned hoist rope brake, demountable installation has two extension springs between first pivot and the second pivot, two the left end of extension spring is hung respectively and is established both ends around the first pivot, two the right-hand member of extension spring is hung respectively and is established both ends around the second pivot, both ends are all threaded connection has anticreep nut around first pivot and the second pivot.

Above-mentioned hoist rope brake, drive assembly includes the pneumatic cylinder, and the stiff end of pneumatic cylinder rotates to be connected in the first pivot, the power take off end fixed connection of pneumatic cylinder is in the left end of threaded rod.

Above-mentioned hoist rope brake, drive assembly includes the cylinder, and the stiff end rotation of cylinder is connected in the first pivot, the power take off end fixed connection of cylinder is in the left end of threaded rod.

The beneficial effects of the utility model are as follows:

1. according to the utility model, through the cooperation of the base, the brake arm, the brake shoe, the brake pad, the driving assembly and the adjusting mechanism, a user can drive the brake shoe and the brake pad to effectively brake the rope sheave through controlling the driving assembly, and the effect of continuous braking or releasing braking is realized through controlling the opening and closing of the driving assembly, so that the safety and stability in the hoisting process are improved;

through the cooperation of second pivot, threaded rod and adjusting nut, the user only need adjust the position of second pivot on the threaded rod through two adjusting nut, can make the initial distance between two brake shoes diminish, guarantees that two brake pads can still effectively brake the rope sheave even receive under the circumstances of wearing and tearing, improves the braking effect, prolongs the life of stopper, need not to frequently change the brake shoe, practices thrift use cost.

2. According to the utility model, the top piece, the threaded hole, the positioning bolt and the strip-shaped groove are matched, so that the top piece can be used for propping against the brake arms, the swing amplitude of the brake arms is limited, the swing amplitudes of the two brake arms are identical, friction of the brake pad on the rope wheel after releasing the brake due to different swing amplitudes of the two brake arms is effectively prevented, the practicability of the brake is improved, and unnecessary abrasion to the brake is avoided.

3. According to the utility model, by arranging the two tension springs, the brake arm can drive the brake shoe to restore to the initial position after the braking is released, the braking release efficiency is improved, the anti-slip nut can effectively prevent the tension springs from slipping from the first rotating shaft and the second rotating shaft, and the installation stability of the tension springs is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of an adjusting mechanism according to the present utility model;

FIG. 3 is a schematic view of an adjusting mechanism according to the present utility model;

FIG. 4 is a schematic diagram of an exploded structure of the moment-eliminating mechanism according to the present utility model;

fig. 5 is a schematic cross-sectional view of the torque reducing mechanism according to the present utility model.

In the figure:

1. a base; 2. a brake arm; 3. a brake shoe; 4. a brake pad; 5. a drive assembly; 6. a first rotating shaft; 7. a second rotating shaft; 8. a threaded rod; 9. an adjusting nut; 10. a connecting plate; 11. a top sheet; 12. a threaded hole; 13. a bar-shaped groove; 14. positioning bolts; 15. a tension spring; 16. and (5) a drop-proof nut.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

As shown in fig. 1, the embodiment of the utility model discloses a crane rope brake, which comprises a base 1, wherein brake arms 2 are symmetrically and rotatably connected to the left side and the right side of the base 1, transverse rods are fixedly connected to the left side and the right side of the inside of the base 1, two brake arms 2 are respectively and rotatably installed on the transverse rods on the same side, a brake pad 3 is rotatably connected to the bottom of each brake arm 2, an installation shaft is detachably installed at the bottom of each brake arm 2, each brake pad 3 is rotatably installed on an installation shaft on the same side, a bayonet lock is detachably installed at the front end and the rear end of each installation shaft, when the brake pads 3 need to be maintained and replaced, a user can pull out the bayonet lock from the installation shaft firstly, then pull out the installation shaft from the brake arms 2, so that the brake pads 3 can be detached, one sides of the two brake pads 3, which are close to each other, are fixedly connected with brake pads 4, are clamped on the two sides of a rope sheave, a brake assembly 5 is arranged between the two brake arms 2, a first rotating mechanism is arranged at the top of the brake assembly 5, a first rotating mechanism is connected to the top of the brake assembly 5, a rotating mechanism is arranged at the top of the first rotating mechanism is connected to the brake assembly 5, and a first rotating mechanism is connected to the top adjusting mechanism is arranged at the top of the first rotating mechanism is fixedly connected to the brake assembly 5, and is connected to the top adjusting mechanism is positioned at the top of the first rotating mechanism 6;

when the rope pulley is required to be braked, a user starts the driving assembly 5, the fixed end and the power output end of the driving assembly 5 respectively push the first rotating shaft 6 and the adjusting mechanism to move oppositely, so that the top ends of the two braking arms 2 move oppositely, at the moment, the two braking arms 2 rotate around the hinging point of the two braking arms and the base 1, the bottom ends of the two braking arms 2 drive the two braking shoes 3 to be close to each other, the two braking pads 4 are clamped on two sides of the rope pulley, friction is carried out on the rope pulley, and braking operation on the rope pulley is realized; when the brake is used for a long time, the brake pad 4 will wear, the thickness of the brake pad 4 is thinned, and when the rope pulley is braked, the brake pad 4 cannot be tightly clamped on two sides of the rope pulley, so that enough friction force cannot be caused on the rope pulley, and the braking effect of the brake is poor, at the moment, a user can adjust the initial position of the brake arm 2 through the adjusting mechanism, so that when the rope pulley is braked, the brake pad 4 can be tightly clamped on two sides of the rope pulley; when the braking is required to be released, a user controls the driving assembly 5 to retract, so that the braking gasket 4 does not clamp the rope pulley any more, and the operation of releasing the braking is realized;

through the cooperation of the base 1, the brake arm 2, the brake shoe 3, the brake pad 4, the driving component 5 and the adjusting mechanism, a user can drive the brake shoe 3 and the brake pad 4 to effectively brake the rope sheave by controlling the driving component 5, and the effect of continuous braking or releasing braking is realized by controlling the opening and closing of the driving component 5, so that the safety and stability in the hoisting process are improved; the user adjusts the adjusting mechanism, so that the brake pad 4 can be tightly clamped at two sides of the rope pulley in the braking process, and the braking effect of the brake is further ensured.

As shown in fig. 1-3, the adjusting mechanism comprises a second rotating shaft 7 and a threaded rod 8, the second rotating shaft 7 is rotatably connected to the top of the brake arm 2 positioned on the right side, the threaded rod 8 penetrates through the middle of the second rotating shaft 7, the threaded rod 8 can slide in the second rotating shaft 7, under the action of the threaded rod 8, the second rotating shaft 7 can rotate in the brake arm 2 on the same side, the power output end of the driving assembly 5 is fixedly connected with the left end of the threaded rod 8, two adjusting nuts 9 respectively positioned on the left side and the right side of the second rotating shaft 7 are in threaded connection with the threaded rod 8, and the two adjusting nuts 9 can limit the relative position relation between the threaded rod 8 and the second rotating shaft 7, so that relative movement between the threaded rod 8 and the second rotating shaft 7 can not happen;

in the process of braking the rope pulley, the power output shaft of the driving assembly 5 pushes the second rotating shaft 7 to move through the threaded rod 8, at the moment, the second rotating shaft 7 rotates in the brake arm 2 on the same side, and the brake arm 2 on the same side rotates around the hinging point of the brake arm 2 and the base 1, so that the brake pad 4 carries out friction braking on the rope pulley; when the brake linings are worn and thinned after long-time use, a user rotates the adjusting nuts 9, and adjusts the two adjusting nuts 9 along the threaded rod 8 in a direction away from the output end of the driving assembly 5, so that the second rotating shaft 7 moves in a direction away from the output end of the driving assembly 5, the distance between the top ends of the two brake arms 2 is increased, and the distance between the bottom ends of the two brake arms 2 is reduced, so that the relative positions of the two brake shoes 3 are close to each other, and the two brake linings 4 can be effectively clamped on two sides of the rope sheave in the braking process;

through the cooperation of second pivot 7, threaded rod 8 and adjusting nut 9, the user only need adjust the position of second pivot 7 on threaded rod 8 through two adjusting nut 9, can make the initial distance between two brake shoes 3 diminish, guarantees that two brake pads 4 can still effectively brake the rope sheave even under the circumstances that receives wearing and tearing, improves the braking effect, prolongs the life of stopper, need not to frequently change brake shoes 3, practices thrift use cost.

As shown in fig. 1, fig. 4 and fig. 5, the moment-withdrawing equalization mechanism comprises a connecting plate 10 and a top sheet 11, the connecting plate 10 is fixedly connected to the top of the base 1, two threaded holes 12 are symmetrically formed in the connecting plate 10, two top sheets 11 are respectively and slidably mounted on the top of the connecting plate 10, strip-shaped grooves 13 are respectively formed in the two top sheets 11, positioning bolts 14 are respectively and threadedly connected in the two threaded holes 12, the two positioning bolts 14 respectively pass through the corresponding top sheets 11 through the corresponding strip-shaped grooves 13, the tops of the two positioning bolts 14 are respectively positioned above the corresponding top sheets 11, and the two positioning bolts 14 are matched with the corresponding threaded holes 12 so as to press the corresponding top sheets 11 on the connecting plate 10;

the user unscrews the positioning bolts 14 to enable the two top sheets 11 to slide on the connecting plate 10, the positions of the top sheets 11 are adjusted, after the top sheets 11 extend out of the connecting plate 10 for a proper length, the positioning bolts 14 are screwed again, at the moment, the positioning bolts 14 are matched with the corresponding threaded holes 12, the top sheets 11 are pressed, the top sheets 11 are fixed at the current positions, when the braking effect on the rope wheels is relieved, the two braking arms 2 rotate towards the initial positions, and in the rotating process, the two top sheets 11 abut against the braking arms 2 at the same side, so that the two braking arms 2 are positioned at proper positions finally;

through the cooperation of top piece 11, screw hole 12, positioning bolt 14 and bar groove 13, make top piece 11 can support brake arm 2 to limit the swing range of brake arm 2, make the swing range of two brake arms 2 the same, effectively prevent still having brake liner 4 to rub the rope sheave after releasing the braking because of two brake arm 2 swing range difference, improved the practicality of stopper, avoided causing unnecessary wearing and tearing to the stopper.

As shown in fig. 1, two tension springs 15 are detachably mounted between the first rotating shaft 6 and the second rotating shaft 7, the left ends of the two tension springs 15 are respectively hung at the front end and the rear end of the first rotating shaft 6, the right ends of the two tension springs 15 are respectively hung at the front end and the rear end of the second rotating shaft 7, and the front end and the rear end of the first rotating shaft 6 and the rear end of the second rotating shaft 7 are respectively connected with anti-drop nuts 16 in a threaded manner; by arranging the two tension springs 15, the brake arm 2 can drive the brake shoe 3 to restore to the initial position after the braking is released, the braking release efficiency is improved, the anti-slip nut 16 can effectively prevent the tension springs 15 from slipping from the first rotating shaft 6 and the second rotating shaft 7, and the installation stability of the tension springs 15 is improved.

The driving assembly 5 comprises a hydraulic cylinder, the fixed end of the hydraulic cylinder is rotationally connected to the first rotating shaft 6, the power output end of the hydraulic cylinder is fixedly connected to the left end of the threaded rod 8, and the hydraulic cylinder belongs to the prior art and is not described herein.

The driving assembly 5 comprises a cylinder, the fixed end of the cylinder is rotationally connected to the first rotating shaft 6, the power output end of the cylinder is fixedly connected to the left end of the threaded rod 8, and the cylinder belongs to the prior art and is not described herein.

It should be noted that, in the description of the present utility model, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims

1. The utility model provides a hoist rope brake, includes base (1), its characterized in that, the left and right sides symmetry rotation of base (1) is connected with brake arm (2), every the bottom of brake arm (2) is all rotated and is connected with brake shoe (3), two the equal fixedly connected with brake lining (4) in one side that brake shoe (3) are close to each other, two be equipped with drive assembly (5) between brake arm (2), be located left the top rotation of brake arm (2) is connected with first pivot (6), is located the top rotation of brake arm (2) on the right side is connected with adjustment mechanism, the stiff end and the first pivot (6) rotation of drive assembly (5) are connected, the power take off end and the adjustment mechanism fixed connection of drive assembly (5), the top of base (1) is equipped with moves back the equal mechanism of moment.

2. The crane rope brake according to claim 1, characterized in that the adjusting mechanism comprises a second rotating shaft (7) and a threaded rod (8), the second rotating shaft (7) is rotatably connected to the top of the brake arm (2) located on the right side, the threaded rod (8) penetrates through the middle of the second rotating shaft (7), the threaded rod (8) can slide in the second rotating shaft (7), the power output end of the driving assembly (5) is fixedly connected with the left end of the threaded rod (8), and two adjusting nuts (9) located on the left side and the right side of the second rotating shaft (7) are connected to the threaded rod (8) in a threaded mode.

3. The crane rope brake according to claim 1, characterized in that the moment-withdrawing equalization mechanism comprises a connecting plate (10) and a top sheet (11), the connecting plate (10) is fixedly connected to the top of the base (1), two threaded holes (12) are symmetrically formed in the connecting plate (10), the number of the top sheets (11) is two, the two top sheets (11) are slidably mounted on the top of the connecting plate (10), strip-shaped grooves (13) are formed in the two top sheets (11), and positioning bolts (14) are connected to the two threaded holes (12) in a threaded mode.

4. The crane rope brake according to claim 2, characterized in that two tension springs (15) are detachably installed between the first rotating shaft (6) and the second rotating shaft (7), the left ends of the two tension springs (15) are respectively hung at the front end and the rear end of the first rotating shaft (6), the right ends of the two tension springs (15) are respectively hung at the front end and the rear end of the second rotating shaft (7), and the front end and the rear end of the first rotating shaft (6) and the rear end of the second rotating shaft (7) are respectively connected with anti-disengaging nuts (16) in a threaded mode.

5. A crane rope brake according to claim 2, characterized in that the drive assembly (5) comprises a hydraulic cylinder, the fixed end of which is rotatably connected to the first rotary shaft (6), and the power output end of which is fixedly connected to the left end of the threaded rod (8).

6. A crane rope brake according to claim 2, characterized in that the drive assembly (5) comprises a cylinder, the fixed end of which is rotatably connected to the first rotary shaft (6), and the power output end of which is fixedly connected to the left end of the threaded rod (8).