Automatic compensation type belt brake supporting device for large winch

Abstract

The utility model discloses an automatic compensation type belt brake supporting device for a large winch, which comprises a winding drum hub and a loose edge steel belt surrounding the periphery of the winding drum hub, a plurality of inner supporting devices are arranged on the winding drum hub, first rollers are arranged in the inner supporting devices, the first rollers move along a preset path to protrude out of the peripheral surface of the winding drum hub, and the loose edge steel belt is arranged on the loose edge steel belt. A support is formed between the reel hub and the loose edge steel belt; the multiple inner supporting devices and the winding drum hub rotate coaxially, so that the multiple first rolling wheels form continuous surrounding movable supporting on the circumferential gap between the winding drum hub and the loose edge steel belt. By means of the multiple sets of devices, rolling of the idler wheels in the loose edge steel belt is achieved, the brake and the friction belt are evenly disengaged or closed, and therefore the loose braking function and the braking function of the large winch loose edge steel belt overhead type brake are achieved. The brake supporting device reasonably utilizes space, is compact in structural arrangement and small in installation difficulty, saves cost, and meets the use requirements of a large winch brake.

Description

Technical Field

[0001] The utility model relates to the technical field of winch equipment, in particular to an automatic compensation type belt brake supporting device for a large winch. Background Art

[0002] The band brake support device is a device that supports and adjusts the steel band at the outgoing end of the brake. It is used to prevent the loose-side steel band from prolapsing when the brake is opened. The friction band does not completely detach from the brake hub along the radial direction of the wheel hub during the loosening stroke, causing the brake to be incompletely opened, and then causing the friction band in the loose-side steel band to be abnormally worn. This is a problem that needs to be urgently solved for band brakes.

[0003] Existing band brake support devices generally consist of two sets of mounting brackets mounted on a support base. The ends of the mounting brackets are provided with fixed nuts and adjustable bolts. The two sets of nuts and bolts form a certain angle to support the loose steel band of the brake from below. The specific clearance control is that when the brake is fully engaged, the initial clearance between the adjusting bolt and the loose steel band used for braking is 2-3mm. See attached. Figure 1 , so that when the loose steel belt is loosened, it can support the loose steel belt and make the friction belt inside it maintain a uniform distance from the brake hub.

[0004] The aforementioned band brake support device has a simple structure and is suitable for brake configurations in which the loose steel band is positioned below the brake hub. When the friction band wears, the bolt position can be manually adjusted to ensure proper alignment of the brake support and the loose steel band, meeting the needs of most users. With the increasing size and diversity of ships, higher requirements are being placed on the brakes of large winches. For configurations where the loose steel band of the brake is positioned above the brake hub due to layout requirements, existing band brake support devices often lack the space to secure them, failing to meet such requirements. Consequently, a conveniently replaceable roller device, such as that disclosed in Application No. CN201611073402.X, has been designed. The roller device is mounted on a brake device and includes a steel band and a friction plate connected to each other. The brake device is used to brake the drum hub. The roller device comprises at least one roller device mounted on the steel band of the brake device. The roller device comprises a roller and a pressure plate mounted on the roller for compressing the roller. A clamping mechanism is symmetrically provided on the left and right sides of the pressure plate, and the bottom of the clamping mechanism is fixedly connected to the steel band. The roller device of the utility model can effectively separate the friction plate from the hub surface of the reel when the brake device is disengaged, thereby avoiding wear of the friction plate. The design utilizes two studs fixedly installed on the steel belt, and utilizes the studs to guide the pressure plate, so that the roller on the pressure plate can support the steel belt under the push of the spring and maintain the distance from the reel hub. Its defect is that the steel belt will deform in the circumferential direction of the steel belt due to the change of the boundary during the process of tightening and loosening the reel hub, and thus the parallelism of the two studs will change under the influence of the deformation when the two studs are set. The pressure plate uses the through holes at both ends to slide on the studs, and the two studs can easily cause the pressure plate to move up and down to become stuck after the parallelism changes, which makes it impossible to form effective support, which will inevitably cause wear of the friction belt; secondly, due to the limitation of the installation position of the structure, it is understandable that when the roller is set The position can provide certain support for the steel belt, while other positions are affected by gravity, tension, etc., which will also cause the friction belt to stick to the reel hub and cause wear; in addition, as mentioned above, the existing design is nothing more than supporting from the bottom side or forming support from the top side, and its ultimate support effect can only achieve half-side support at best, so it is necessary to carefully select and select it; and it must be installed accurately and correctly. If the selection or installation orientation is wrong, it is very easy to cause abnormal wear, which will cause great trouble to the selection of equipment and the subsequent installation process.

[0005] In view of the above, it is necessary to propose an automatic compensating large winch belt brake support device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to overcome the defects existing in the prior art and provide an automatic compensating belt brake support device for a large winch; when in use, the support effect will not be affected by the radius change when the steel belt is tightened or relaxed; there is no need to consider the choice of bottom support or upper support due to the setting form of the brake; in addition, effective support in the entire circumference can also be formed.

[0007] To achieve the above-mentioned purpose, the technical solution of the present invention is as follows: an automatic compensating belt brake support device for a large winch, comprising a drum hub and a loose steel belt wrapped around the outer circumference of the drum hub, a plurality of internal support devices being provided on the drum hub, a first roller being provided in the internal support device, the first roller moving along a preset path to the outer circumferential surface protruding from the drum hub, and forming support between the drum hub and the loose steel belt; the plurality of internal support devices rotate coaxially with the drum hub, so that the plurality of first rollers form a continuous surrounding movable support on the circumferential gap between the drum hub and the loose steel belt.

[0008] Furthermore, the internal support device includes a guide rod, a sliding plate, and an elastic member. The guide rod is parallel to the radial direction of the reel hub, and two guide rods are provided in parallel. The two ends of the guide rod are fixed on the side walls of the reel hub. The sliding plate is straddled on the two parallel guide rods, and the two ends of the sliding plate are slidably sleeved on the guide rods. A first roller is rotatably provided in the middle of the sliding plate.

[0009] Furthermore, the elastic member is a spring, which is respectively wound on the two guide rods, and the elastic force of the spring pushes the sliding plate to move away from the center of the circle, so that the first roller is exposed from the surface of the reel hub.

[0010] Furthermore, it also includes a synchronization device for controlling the synchronous extension and retraction of the first rollers of multiple internal support devices to expose the surface of the drum hub, which includes a drive disk, which is arranged on one side of the drum hub and is adjusted by sliding along its axial direction. The drive disk is circumferentially matched with each internal support device and is provided with a radial plate, and the radial plate has at least one sliding inclined surface, and the sliding inclined surface is matched with the sliding plate to control the radial extension and retraction movement of the sliding plate when the drive disk slides axially.

[0011] Furthermore, a second roller is rotatably provided on the sliding plate, the second roller is rollingly connected to the sliding inclined surface, and the second roller is arranged perpendicular to the first roller.

[0012] Furthermore, the elastic member is a spring, which is arranged on the side of the sliding plate away from the center of the circle. In a free state, the spring pushes the sliding plate to move closer to the center of the circle.

[0013] Furthermore, the driving disc is provided with a sliding sleeve along the axis, an annular groove is provided at the end of the sliding sleeve, a shift fork member for driving the sliding sleeve to move axially is provided on the annular groove, and the first end of the shift fork member is rotatably arranged in the annular groove.

[0014] Furthermore, a vertical plate is provided at the second end of the fork member, the vertical plate is arranged perpendicular to the fork member, the vertical plate is coupled to the driving rod, a protrusion with a second inclined surface is provided on one side of the driving rod, and a sliding rod is provided at the end of the vertical plate to cooperate with the protrusion, and the sliding rod slides between the low point and the high point of the protrusion.

[0015] The advantages and beneficial effects of the utility model are: the utility model is an automatic compensation type large winch with a belt brake support device

[0016] By using multiple sets of these devices, the rollers roll within the loose steel belt, evenly disengaging and engaging the brake and friction belt. This achieves both brake release and braking functions for large winch brakes mounted on loose steel belts. This brake support device utilizes space efficiently, offers a compact structure, minimizes installation effort, and reduces costs, meeting the requirements for large winch brakes. The utility model is versatile and standardized, allowing winch brakes of varying specifications to utilize a standard brake support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a belt brake support device in the prior art;

[0018] Figure 2 yes Figure 1 Schematic diagram of longitudinal section in;

[0019] Figure 3 It is an axonometric view of the first embodiment of the present invention;

[0020] Figure 4 It is a front view of the first embodiment of the present utility model;

[0021] Figure 5 It is an exploded view of the first embodiment of the present invention;

[0022] Figure 6 This is the second side of the shaft in the utility model Figure 1 ;

[0023] Figure 7 This is the second side of the shaft in the utility model Figure 2 ;

[0024] Figure 8 This is an exploded view of the second embodiment of the present invention;

[0025] In the figure: 1. reel hub; 2. loose steel belt; 3. support seat; 4. mounting bracket; 5. fixing nut; 6. adjusting bolt; 7. friction belt; 8. internal support device; 9. first roller; 10. guide rod; 11. sliding plate; 12. elastic member; 13. driving disk; 14. radial plate; 15. sliding inclined surface; 16. second roller; 17. sliding sleeve; 18. annular groove; 19. fork member; 20. vertical plate; 21. second inclined surface; 22. bump; 23. sliding rod; 24. avoidance hole; 25. driving rod. DETAILED DESCRIPTION

[0026] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0027] Example 1:

[0028] An automatic compensating large winch belt brake support device is similar to the prior art. This device also has a drum hub 1 and a loose steel belt 2 wrapped around the outer circumference of the drum hub 1. The loose steel belt 2 is tightened manually or automatically to tighten it around the drum hub 1 to achieve the purpose of braking. Figure 1 、 2 As shown, taking the example of supporting the steel belt from the bottom side, the figure shows an adjusting bolt 6 being screwed on the fixing nut 5 at the end of the mounting bracket 4, and the end of the adjusting bolt 6 lifts up the bottom of the loose steel belt 2 to achieve support. Its defect is that the supporting effect on the bottom side is good, but under the influence of gravity, the steel belt has a certain deformation. If the adjustment is not accurate, it is easy to make the friction belt 7 stick to the reel hub 1 when braking is not needed; in addition, as the existing technology cited in the background technology, it uses rollers for support from the top side. Due to the bending deformation of the steel belt during use, it is easy to make its studs non-parallel, thereby jamming its pressure plate and limiting the telescopic flexibility of its roller; secondly, the above two methods can only provide certain support to half of the arc or even less, and the use effect is not good.

[0029] In this embodiment, a plurality of inner support devices 8 are provided on the reel hub 1, and a first roller 9 is provided inside the inner support device 8. Figure 3-5As shown, the first roller 9 moves along a preset path to the outer peripheral surface of the reel hub 1 and forms a support between the reel hub 1 and the loose edge steel belt 2. Specifically, in this embodiment, the internal support device 8 includes a guide rod 10, a sliding plate 11, and an elastic member 12. The guide rod 10 is parallel to the radial direction of the reel hub 1, and two guide rods 10 are provided in parallel. When installed, a plurality of rectangular holes are opened in the circumference of the reel hub 1, and a group of internal support devices 8 are provided in each hole. Specifically, two guide rods are provided on both sides of the hole in parallel with the radial direction. The guide rod 10 and the two ends of the guide rod 10 are fixed on the inner wall of the hole, and the sliding plate 11 is straddled on the two parallel guide rods 10, and the two ends of the sliding plate 11 are slidably sleeved on the guide rods 10, and the middle part of the sliding plate 11 is rotatably provided with a first roller 9; in this way, the sliding plate 11 can slide in the limited direction of the guide rod 10, so that the first roller 9 can be telescopically moved along the radial direction of the reel hub 1, and the first roller 9 can protrude from the surface of the reel hub 1. It can be understood that an avoidance hole 24 can be provided on the reel hub 1 to facilitate the passage of the first roller 9.

[0030] In this embodiment, the elastic member 12 is a spring, which is wound around the two guide rods 10 respectively, and the elastic force of the spring pushes the sliding plate 11 away from the center of the circle, so that the first roller 9 is exposed on the surface of the drum hub 1. Figure 4 As shown, under the thrust of the spring, the sliding plate 11 is pushed away from the center of the circle in the normal state, so that the first roller 9 passes through the avoidance hole 24, and then lifts the loose steel belt 2 from the inside; since there are multiple inner support devices 8 in the circumferential direction, multiple inner support devices 8 are driven by the drum hub 1 to rotate coaxially, so the situation before braking is analyzed as follows: the loose steel belt 2 is in a relaxed state, and the drum hub 1 is rotating at this time, and its rotation drives all the first rollers 9 to revolve around the axis, so that multiple first rollers 9 are in the circumferential gap between the drum hub 1 and the loose steel belt 2. A continuous surrounding movable support is formed on the upper surface, and the first roller 9 rolls in contact with the inner surface of the friction belt 7. Due to its rotation, the loose steel belt 2 can maintain a good support gap at all places on the inner circumference, and there will be no rubbing of the hub. In addition, in this improvement, compared with the cited document, the guide rod 10 in this embodiment can always remain parallel, so that the sliding plate 11 will not get stuck. Moreover, the use of this embodiment does not need to distinguish between lower support or upper support, but is a circumferentially uniform support, which does not require design selection and has good versatility. When the loose steel belt 2 is tightened for braking, the loose steel belt 2 applies a clamping force to the drum hub 1. Under this force, the first roller 9 can be compressed toward the center of the circle, and then the elastic member 12 is compressed through the sliding plate 11, so that the friction belt 7 can directly contact the drum hub 1 for clamping and braking. Therefore, the setting of this embodiment will not affect the braking effect.

[0031] Example 2:

[0032] As another embodiment, this embodiment further provides a synchronization device for controlling the synchronous extension and retraction of the first rollers 9 of the plurality of inner support devices 8 to expose the surface of the drum hub 1, thereby further improving the control of the height of the first rollers 9 protruding from the surface of the drum hub 1;

[0033] Specifically, such as Figure 6-8 As shown, in this embodiment, a drive disc 13 is additionally provided. The drive disc 13 is arranged on one side of the reel hub 1 and is slidably adjusted along its axial direction. Specifically, a sliding sleeve 17 is provided along the axis of the drive disc 13. A rotating shaft is provided at the center of the reel hub 1, so that the drive disc 13 is sleeved on the rotating shaft for sliding movement. The drive disc 13 is circumferentially provided with a radial plate 14 in cooperation with each inner support device 8. The radial plate 14 has at least one sliding inclined surface 15. When the drive disc 13 moves axially, the radial plate 14 can approach or move away from the sliding plate 11. The contact between the sliding inclined surface 15 and the sliding plate 11 can thereby simultaneously control the movement of all the sliding plates 11. The sliding inclined surface 15 cooperates with the sliding plate 11, so that when the drive disc 13 slides axially, the sliding plate 11 can be controlled to move radially.

[0034] Specifically, a second roller 16 is rotatably provided on the sliding plate 11, and the second roller 16 is rollingly connected to the sliding inclined surface 15, and the second roller 16 is arranged perpendicular to the first roller 9; in order to make the sliding plate 11 and the sliding inclined surface 15 slide in contact with less resistance, a rolling drag-reducing contact is achieved by the second roller 16, so that the driving resistance is smaller; in this example, the elastic member 12 can also be a spring, the difference is that the spring is arranged on the side of the sliding plate 11 away from the center of the circle (opposite to the embodiment one), and in the free state, the spring pushes the sliding plate 11 to move closer to the center of the circle.

[0035] Furthermore, to control the movement of the drive plate 13, an annular groove 18 is provided at the end of the sliding sleeve 17. A shift fork 19 is provided in the annular groove 18 to drive the sliding sleeve 17 in axial movement. The first end of the shift fork 19 is rotatably disposed within the annular groove 18. A vertical plate 20 is provided at the second end of the shift fork 19. The vertical plate 20 is disposed perpendicularly to the shift fork 19 and is coupled to a drive rod 25. A protrusion 22 with a second inclined surface 21 is provided on one side of the drive rod 25. A slide rod 23 is provided at the end of the vertical plate 20 to engage with the protrusion 22. The slide rod 23 slides between the low and high points of the protrusion 22.

[0036] It is understood that, for example, Figure 6-8In the embodiment, the protrusion 22 is set on the driving rod 25 that drives the loose steel belt 2. When the driving rod 25 moves telescopically, the tightening or loosening of the loose steel belt 2 can be controlled. The driving rod 25 is provided with a protrusion 22. When the driving rod 25 moves linearly, the cam formed by the protrusion 22 and the slide bar 23 can be matched to control the axial movement of the driving disc 13 through the fork member 19, thereby controlling the first roller 9 to extend out of the avoidance hole 24. In actual use, the driving rod 25 is connected to one end of the loose steel belt 2 and controls the loose steel belt 2 to brake. In the non-braking state, the driving disc 13 is controlled by the fork member 19. The pressure is applied to the drum hub 1, and the first roller 9 is pushed out of the avoidance hole 24 through the cooperation of the sliding inclined surface 15 and the second roller 16 to achieve inner support. As the drum hub 1 rotates, continuous rolling support can be achieved on the inner side of the friction belt 7; when braking, the driving rod 25 moves, and then the protrusion 22 moves, and the sliding rod 23 cooperates with the cam of the second inclined surface 21 to move the fork member 19, thereby controlling the drive disk 13 to move away from the drum hub 1, and under the action of the elastic member 12, each first roller 9 is contracted, and then the loose edge steel belt 2 is tightened on the drum hub 1 to achieve braking.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An automatic compensating large winch with a band brake support device, characterized in that: The invention comprises a drum hub (1), a loose steel strip (2) wrapped around the outer periphery of the drum hub (1), a plurality of inner support devices (8) being provided on the drum hub (1), a first roller (9) being provided inside the inner support device (8), the first roller (9) moving along a preset path to a surface protruding from the outer periphery of the drum hub (1), and forming a support between the drum hub (1) and the loose steel strip (2); the plurality of inner support devices (8) rotating coaxially with the drum hub (1) so that the plurality of first rollers (9) form a continuous surrounding movable support on the circumferential gap between the drum hub (1) and the loose steel strip (2).

2. The automatic compensating large winch band brake support device according to claim 1, characterized in that: The inner support device (8) includes a guide rod (10), a sliding plate (11), and an elastic member (12). The guide rod (10) is parallel to the radial direction of the reel hub (1), and two guide rods (10) are provided in parallel. The two ends of the guide rod (10) are fixedly arranged on the side walls of the reel hub (1). The sliding plate (11) is straddled on the two parallel guide rods (10). The two ends of the sliding plate (11) are slidably sleeved on the guide rods (10). A first roller (9) is rotatably provided in the middle of the sliding plate (11).

3. The automatic compensating large winch band brake support device according to claim 2, characterized in that: The elastic member (12) is a spring, which is wound around the two guide rods (10) respectively, and the elastic force of the spring pushes the sliding plate (11) to move away from the center of the circle, so that the first roller (9) is exposed from the surface of the reel hub (1).

4. The automatic compensating large winch band brake support device according to claim 2, characterized in that: The invention also includes a synchronization device for controlling the first rollers (9) of the plurality of inner supporting devices (8) to synchronously extend and retract to expose the surface of the reel hub (1), which includes a drive disk (13). The drive disk (13) is arranged on one side of the reel hub (1) and is axially slidable and adjustable. The drive disk (13) is circumferentially matched with each inner supporting device (8) and is provided with a radial plate (14). The radial plate (14) has at least one sliding inclined surface (15). The sliding inclined surface (15) is matched with the sliding plate (11) so that when the drive disk (13) slides axially, the sliding plate (11) is controlled to move radially.

5. The automatic compensating large winch band brake support device according to claim 4, characterized in that: A second roller (16) is rotatably provided on the sliding plate (11), the second roller (16) is rollingly connected to the sliding inclined surface (15), and the second roller (16) is arranged perpendicular to the first roller (9).

6. The automatic compensating large winch band brake support device according to claim 4, characterized in that: The elastic member (12) is a spring, which is arranged on the side of the sliding plate (11) away from the center of the circle. In a free state, the spring pushes the sliding plate (11) to move closer to the center of the circle.

7. The automatic compensating large winch band brake support device according to claim 4, characterized in that: The driving disc (13) is provided with a sliding sleeve (17) along the axis, an annular groove (18) is provided at the end of the sliding sleeve (17), a shift fork (19) for driving the sliding sleeve (17) to move axially is provided on the annular groove (18), and a first end of the shift fork (19) is rotatably disposed in the annular groove (18).

8. The automatic compensating large winch band brake support device according to claim 7, characterized in that: A vertical plate (20) is provided at the second end of the fork member (19). The vertical plate (20) is arranged perpendicular to the fork member (19). The vertical plate (20) is coupled to a driving rod (25). A protrusion (22) with a second inclined surface (21) is provided on one side of the driving rod (25). A sliding rod (23) is provided at the end of the vertical plate (20) to match the protrusion (22). The sliding rod (23) slides between a low point and a high point of the protrusion (22).

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