Hydraulic winch with belt type brake device

Abstract

The utility model discloses a hydraulic winch with a belt type brake device, belongs to the technical field of winding equipment, and is mainly used for solving the problems that a transmission tail end of a common winch is not braked and the safety performance is not high, the hydraulic winch comprises a rack, a driving mechanism, a winding drum and a belt type brake mechanism are arranged on the rack, and the driving mechanism is fixedly connected with the rack; the winding drum is driven by the driving mechanism, hubs are arranged at the two ends of the winding drum, braking drums are arranged on the end faces, back to the winding drum, of the hubs, the braking drums are sleeved with the belt type braking mechanism, and the belt type braking mechanism comprises a telescopic rod and a pair of braking belts. An adjusting assembly is connected between the upper ends of the two brake bands, and the lower ends of the two brake bands are driven by the telescopic rod to be close to or away from each other. The belt type brake mechanism is installed on the side of the winch drum, braking of the low-speed high-torsion end is achieved, the damage probability of transmission components is reduced, and higher braking safety is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of winding equipment, and in particular to a hydraulic winch with a belt brake device. Background Art

[0002] Traditional winches generally use input-end braking, which is a multi-disc friction brake inside the transmission device, and the opening and closing of the brake is automatically controlled by the shuttle valve on the motor. This braking method brakes at the high-speed end instead of at the end of the transmission, so it cannot meet the safety requirements for some places with higher requirements.

[0003] That is to say, most of the existing winches are braked at the high speed end, and the safety can not meet the requirements of some higher requirements. Especially in some marine machinery, due to the ups and downs of waves, there is a side gap between the transmission device, especially the gears. If there is no brake on the drum side, the drum will rotate back and forth under the drive of external force, which is easy to damage the internal gears. Summary of the invention

[0004] The present application mainly solves the problem that the general winch transmission end has no brake and the safety performance is not high.

[0005] To achieve the above objectives, the present application provides a hydraulic winch with a belt brake device: it includes a frame, on which a driving mechanism, a drum and a belt brake mechanism are arranged, the driving mechanism is fixedly connected to the frame, the drum is rotatably connected to the frame, the drum is driven by the driving mechanism, both ends of the drum have hubs, the end surface of the hub facing away from the drum has a brake cylinder, the belt brake mechanism is sleeved outside the brake cylinder, the belt brake mechanism includes a telescopic rod and a pair of brake belts, an adjusting assembly is connected between the upper ends of the two brake belts, and the lower ends are driven by the telescopic rod to approach or move away from each other, thereby realizing braking and releasing actions.

[0006] Preferably, the adjustment assembly includes a pair of follower screws, the outer sides of the two follower screws are provided with threads of opposite rotation directions, the outer sleeves of the two follower screws are provided with the same adjusting nut, the inner wall of the adjusting nut is provided with two groups of internal threads of opposite rotation directions, which respectively cooperate with the external threads on the outer surfaces of the two follower screws, and the ends of the two follower screws extending out of the adjusting nuts are respectively connected to the upper ends of the two brake bands through a hinge structure, so as to adjust the distance between the upper ends of the two brake bands, thereby compensating for the gap after the brake bands are worn.

[0007] As a preferred embodiment, the band brake mechanism also includes a short bracket and a high bracket fixedly connected to the frame, the short bracket is connected to the telescopic rod via a hinge structure, the high bracket is connected to a swing arm via a hinge structure, one end of the swing arm is connected to the movable end of the telescopic rod via a hinge structure, and the other end is connected to the lower end of one of the brake bands via a hinge structure, the lower end of the other brake band is movably connected to the high bracket, thereby limiting the freedom of movement of the brake band.

[0008] Preferably, the lower end of the other brake belt is connected to a connecting rod via a hinge structure, and the end of the connecting rod away from the brake belt is rotatably connected to the high bracket via a hinge structure, so that the upper brake belt has a larger range of motion, better follow-up flexibility, and can fit more closely with the brake cylinder of the reel.

[0009] Preferably, the swing arm comprises an integral long handle portion and a short handle portion, and there is an angle between the long handle portion and the short handle portion, and the angle is in the range of 100° to 120°. The swing arm is rotatably connected to the high bracket through the hinge structure at the transition point between the long handle portion and the short handle portion, so that the swing arm forms a lever structure.

[0010] As a preference, the driving mechanism adopts a hydraulic motor, the telescopic rod adopts a hydraulic cylinder, and both the driving mechanism and the telescopic rod are connected to a hydraulic system, which can provide large and stable power.

[0011] Preferably, the frame includes a base, and a pair of shaft frames are fixedly connected to the upper surface of the base, the driving mechanism is fixedly connected to one of the shaft frames, the output end of the driving mechanism is fixedly connected to one end of the reel, and the other end of the reel is rotatably connected to the other shaft frame, so that both ends of the reel are supported and can better maintain stability.

[0012] Preferably, a supporting shaft is fixedly connected to the other shaft frame, the supporting shaft is coaxial with the reel, and the supporting shaft is suitable for cooperating with the reel to form a rotating pair, so that the reel will rotate more smoothly.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] (1) By installing a belt brake mechanism on the winch drum side, braking of the low-speed and high-torque end is achieved, reducing the probability of damage to the transmission components and providing higher braking safety;

[0015] (2) The brake mechanism is normally closed and automatically opens when working. It automatically brakes after stopping, which can effectively prevent the drum from reversing after the winch stops. It has higher working stability and the winch also has higher structural stability during transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a plan view of the general assembly structure of the hydraulic winch with a belt brake device;

[0017] Figure 2 A plan cross-sectional view of the connection between the drum and the frame of the hydraulic winch with a belt brake device;

[0018] Figure 3 A front view of a band brake of the hydraulic winch with a band brake device;

[0019] Figure 4 A plan view of the connection between the brake band of the hydraulic winch with a band brake device and the swing arm and the connecting rod;

[0020] Figure 5 This is a front view of the connection between the telescopic rod and the swing arm of the hydraulic winch with a belt brake device.

[0021] In the figure: 1, frame; 101, base; 102, shaft frame; 2, driving mechanism; 3, supporting shaft; 4, reel; 401, wheel hub; 402, brake cylinder; 5, belt brake mechanism; 501, low bracket; 502, telescopic rod; 530, swing arm; 531, long handle; 532, short handle; 504, connecting rod; 505, high bracket; 506, brake band; 570, adjustment assembly; 571, adjustment nut; 572, follower screw; 508, hinged structure. DETAILED DESCRIPTION

[0022] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0026] like Figure 1-5 The hydraulic winch with a band brake device shown in the figure comprises a fixedly arranged frame 1, on which a driving mechanism 2, a drum 4 and a band brake mechanism 5 are arranged, the movement of the drum 4 is controlled by the driving mechanism 2 and the band brake mechanism 5, the driving mechanism 2 is fixedly connected to the frame 1, and the drum 4 is rotatably connected to the frame 1, and the specific structure of the frame 1 comprises a base 101, on the upper surface of the base 101 a pair of shaft frames 102 are fixedly connected, the planes where the two shaft frames 102 are located are parallel and symmetrically arranged, one shaft frame 102 is fixedly connected to the driving mechanism 2, usually, the driving mechanism 2 adopts a hydraulic motor, which is connected to the hydraulic system, the output end of the driving mechanism 2 is fixedly connected to one end of the drum 4, the drum 4 is coaxial with the output shaft of the driving mechanism 2, the drum 4 is driven by the driving mechanism 2, and the other end of the drum 4 is rotatably connected to another shaft frame 102, in fact, the other shaft frame 102 is also fixedly connected to a supporting shaft 3, the supporting shaft 3 is coaxial with the drum 4, and the supporting shaft 3 just cooperates with the drum 4 to form a rotating pair, thereby maintaining the stability of the drum 4 when rotating.

[0027] Both ends of the drum 4 have coaxial hubs 401, and the diameter of the hub 401 is significantly larger than the diameter of the drum 4, which is used to prevent the wound cable from slipping off the two ends of the drum 4. The end surface of the hub 401 facing away from the drum 4 has a brake cylinder 402, and the belt brake mechanism 5 is sleeved outside the brake cylinder 402, thereby achieving braking of the end of the winch transmission.

[0028] The band brake mechanism 5 includes a telescopic rod 502 and a pair of brake bands 506. The telescopic rod 502 adopts a hydraulic cylinder and is also connected to the hydraulic system. An adjustment component 570 is connected between the upper ends of the two brake bands 506. The specific structure of the adjustment component 570 includes a pair of follower screws 572. The outer sides of the two follower screws 572 are provided with threads with opposite rotation directions, one is left-handed and the other is right-handed. Usually, the pitch of the left-handed thread and the right-handed thread is equal. The outer sleeves of the two follower screws 572 are provided with the same adjustment nut 5 71. In order to cooperate with the two follower screws 572 with different thread rotation directions, the inner wall of the adjusting nut 571 is provided with two sets of internal threads with opposite rotation directions, so as to respectively achieve thread cooperation with the external threads on the outer surfaces of the two follower screws 572. When the adjusting nut 571 rotates, the two follower screws 572 can be extended or retracted at the same time. The ends of the two follower screws 572 extending out of the adjusting nut 571 are respectively connected to the upper ends of the two brake bands 506 through the hinge structure 508, so that the upper ends of the two brake bands 506 can rotate relatively.

[0029] The lower ends of the two brake belts 506 are driven by the telescopic rod 502 to move closer to or away from each other, thereby realizing the contraction and release of the belt brake mechanism 5. The belt brake mechanism 5 also includes a short bracket 501 and a high bracket 505 fixedly connected to the frame 1. The upper end height of the high bracket 505 is significantly higher than that of the short bracket 501, which is convenient for configuring the movable structure. The short bracket 501 is connected to the telescopic rod 502 through a hinge structure 508, which is actually a rotationally connected end of the cylinder of the telescopic rod 502. The high bracket 505 is connected to a swing arm 530 through a hinge structure 508. The swing arm 530 is a curved plate-like structure. The hinge structure 508 is located near the center of the swing arm 530. One end of the swing arm 530 One end is connected to the movable end of the telescopic rod 502 through a hinge structure 508, and the other end is connected to the lower end of a brake band 506 through another hinge structure 508. In fact, the swing arm 530 includes an integrated long handle portion 531 and a short handle portion 532. There is an angle between the extension directions of the long handle portion 531 and the short handle portion 532, and the angle range is usually between 100° and 120°. The swing arm 530 is rotatably connected to the high bracket 505 through the hinge structure 508 at the transition point between the long handle portion 531 and the short handle portion 532. Therefore, the long handle portion 531 and the short handle portion 532 both rotate within a certain range around the axis of the hinge structure 508, and the long handle portion 531 and the short handle portion 532 actually constitute a lever structure.

[0030] The lower end of the other brake band 506 is movably connected to the high bracket 505. In fact, the lower end of the other brake band 506 is connected to the connecting rod 504 through a hinge structure 508. The connecting rod 504 is rotatably connected to the high bracket 505 through the hinge structure 508 at the end away from the brake band 506. In this way, the swing range of the other brake band 506 will be larger, and the flexibility of adaptive rotation when subjected to force will be higher.

[0031] Working principle: The driving mechanism 2 driven by hydraulic pressure is installed on the frame 1, the output shaft of the driving mechanism 2 and the drum 4 are fixed together by bolts, the right side of the drum 4 is installed on the supporting shaft 3 through a bearing, and the wheel hub 401 of the drum 4 is provided with a brake cylinder 402, which can cooperate with the installed belt brake mechanism 5, and the belt brake mechanism 5 is composed of an adjusting nut 571, two brake belts 506 at the bottom and the top, a connecting rod 504, a bracket, and a hydraulic telescopic rod 502. When the telescopic rod 502 is supplied with oil and retracted, the brake belt 506 at the bottom tightly hugs the brake cylinder 402 of the drum 4 under the tension at the end of the short handle 532, producing a braking effect. When the driving mechanism 2 of the winch starts to supply oil, The shuttle valve on the hydraulic motor automatically supplies oil to the telescopic rod 502 in the reverse direction, allowing the telescopic rod 502 to extend, and the short handle 532 swings in the reverse direction to release the brake band 506, thereby opening the brake and the drum 4 can rotate freely; when the machine is shut down, the telescopic rod 502 obtains positive oil supply again, so that the telescopic rod 502 automatically resets, and the brake can hold the winch transmission end again to achieve braking; when the brake band 506 of the belt brake mechanism 5 is obviously worn and thinned due to long-term use, the gap between the brake band 506 and the wheel hub 401 of the drum 4 in the non-braking state can be changed by rotating the adjusting nut 571, so as to maintain the braking force during braking, thereby extending the effective use time of the brake band 506.

[0032] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A hydraulic winch with a belt brake device, characterized in that: The invention comprises a frame (1), on which a driving mechanism (2), a reel (4) and a band brake mechanism (5) are arranged, wherein the driving mechanism (2) is fixedly connected to the frame (1), the reel (4) is rotatably connected to the frame (1), the reel (4) is driven by the driving mechanism (2), both ends of the reel (4) are provided with a wheel hub (401), the end surface of the wheel hub (401) facing away from the reel (4) is provided with a brake cylinder (402), the band brake mechanism (5) is sleeved outside the brake cylinder (402), the band brake mechanism (5) comprises a telescopic rod (502) and a pair of brake belts (506), an adjustment component (570) is connected between the upper ends of the two brake belts (506), and the lower ends are driven by the telescopic rod (502) to move closer to or farther from each other.

2. The hydraulic winch with a band brake device according to claim 1, characterized in that: The adjustment assembly (570) includes a pair of follower screws (572), the outer side surfaces of the two follower screws (572) are provided with threads with opposite rotation directions, the outer sleeves of the two follower screws (572) are provided with the same adjustment nut (571), the inner wall of the adjustment nut (571) is provided with two groups of internal threads with opposite rotation directions, which respectively cooperate with the external threads on the outer surfaces of the two follower screws (572), and the ends of the two follower screws (572) extending out of the adjustment nuts (571) are respectively connected to the upper ends of the two brake belts (506) through a hinge structure (508).

3. The hydraulic winch with a band brake device according to claim 2, characterized in that: The belt brake mechanism (5) also includes a short bracket (501) and a high bracket (505) fixedly connected to the frame (1); the short bracket (501) is connected to the telescopic rod (502) via a hinge structure (508); the high bracket (505) is connected to a swing arm (530) via a hinge structure (508); one end of the swing arm (530) is connected to the movable end of the telescopic rod (502) via a hinge structure (508); the other end is connected to the lower end of one of the brake bands (506) via a hinge structure (508); the lower end of the other brake band (506) is movably connected to the high bracket (505).

4. The hydraulic winch with a band brake device according to claim 3, characterized in that: The lower end of the other brake band (506) is connected to a connecting rod (504) via a hinge structure (508), and one end of the connecting rod (504) away from the brake band (506) is rotatably connected to the high bracket (505) via a hinge structure (508).

5. The hydraulic winch with a band brake device according to claim 4, characterized in that: The swing arm (530) includes an integral long handle portion (531) and a short handle portion (532), and there is an angle between the long handle portion (531) and the short handle portion (532). The swing arm (530) is rotatably connected to the high bracket (505) through the hinge structure (508) at the transition point between the long handle portion (531) and the short handle portion (532).

6. The hydraulic winch with a band brake device according to claim 5, characterized in that: The driving mechanism (2) adopts a hydraulic motor, the telescopic rod (502) adopts a hydraulic cylinder, and both the driving mechanism (2) and the telescopic rod (502) are connected to a hydraulic system.

7. The hydraulic winch with a belt brake device as claimed in any one of claims 1 to 6, characterized in that: The frame (1) comprises a base (101), the upper surface of the base (101) is fixedly connected to a pair of shaft frames (102), one of the shaft frames (102) is fixedly connected to the driving mechanism (2), the output end of the driving mechanism (2) is fixedly connected to one end of the reel (4), and the other end of the reel (4) is rotatably connected to the other shaft frame (102).

8. The hydraulic winch with a band brake device according to claim 7, characterized in that: A support shaft (3) is fixedly connected to the other shaft frame (102), the support shaft (3) is coaxial with the reel (4), and the support shaft (3) is suitable for cooperating with the reel (4) to form a rotating pair.

Images