Belt type brake device of large anchor gear

Abstract

The utility model discloses a large windlass belt type brake device which comprises an upper brake belt and a lower brake belt, and one end of the upper brake belt and one end of the lower brake belt are hinged into a whole through a pin shaft. The other end of the upper brake band is welded with an edge tightening pulling plate, the edge tightening pulling plate is fixed on the engineering ship, and the tightening end of the lower brake band is connected to a hand wheel mechanism through a tightening screw rod matched with a lever assembly; the lever assembly comprises a lever plate, a tightening nut and a T-shaped nut; the hand wheel mechanism comprises a brake hand wheel, a brake screw rod, a locking nut, a screw rod guide pipe, a thrust bearing, a distance ring, a shaft sleeve and a protection ring; the tightening screw is matched with the tightening nut, the brake screw is matched with the T-shaped nut, operation of an operator is facilitated, and the thrust bearing is additionally arranged at the bottom of the brake screw, so that braking is more labor-saving; the utility model provides a large anchor gear belt brake device which is convenient to install, easy to adjust and capable of reducing operating force.

Description

Technical Field

[0001] The utility model belongs to the technical field of large anchor windlass brakes and relates to a manual anchor chain wheel brake for large anchor windlass equipment for ships, in particular to a large anchor windlass belt brake device. Background Art

[0002] Anchor winches are important equipment used on various engineering ships, mainly used to complete anchoring and other tasks. The anchor chain wheel brake device is an essential part of the anchor winch. When the ship is anchoring at an offshore anchorage, the anchor chain wheel brake device is used to control the anchoring speed. The anchor chain wheel brake device uses a belt brake to hold the anchor chain wheel tightly and prevent the anchor chain wheel from rotating, thereby controlling the anchor chain and anchor to roll downward.

[0003] Nowadays, the displacement of ships is getting larger and larger, and the specifications of the anchor windlasses are also getting larger and larger. The diameter of the anchor chain wheel is also getting larger and larger. The braking force requirements of the brake device designed on the anchor windlass are getting larger and larger, the size is getting larger and larger, the weight is getting heavier, and the installation and operation are becoming more and more difficult. The brake device structure of conventional small anchor windlasses cannot be applied to the use requirements of large anchor windlasses. Utility Model Content

[0004] In view of the above problems, the main purpose of the utility model is to design a large anchor windlass belt brake device to solve the installation and operation problems of the large anchor windlass brake device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A large anchor windlass belt brake device, comprising an upper brake belt and a lower brake belt, one end of the upper brake belt and the lower brake belt are hinged by a pin shaft, characterized in that: the other end of the upper brake belt is welded with a tightening side pull plate, and the other end of the lower brake belt is a tightening end, which is connected to a hand wheel mechanism through a tightening screw and a lever assembly;

[0007] Wherein, the lever assembly comprises a lever plate, and tightening nuts and T-nuts arranged at both ends of the lever plate;

[0008] The handwheel mechanism comprises a brake handwheel and a brake screw rod vertically arranged at the lower part of the brake handwheel;

[0009] The tightening nut matches the front end of the tightening screw rod, and the T-shaped nut matches the brake screw rod.

[0010] As a further description of the utility model, the handwheel mechanism also includes a locking nut located at the bottom of the brake screw, a screw guide tube is sleeved on the outside of the locking screw on the upper part of the locking nut, a thrust bearing is embedded in the bottom of the screw guide tube, and a distance ring is arranged at the bottom of the thrust bearing.

[0011] As a further description of the present invention, a sleeve is arranged between the screw guide tube and the brake screw, and the sleeve extends from the upper part of the thrust bearing to the upper part of the screw guide tube and exposes the screw guide tube.

[0012] As a further description of the utility model, a protective ring is provided on the top of the shaft sleeve and the screw guide tube.

[0013] As a further description of the present invention, a bracket for fixing and rotatably securing a tightening screw is provided at the bottom of the tightening end of the lower brake band;

[0014] The rear end of the tightening screw is set as a hexagonal structure, and the front end is set as a threaded structure. The rear end of the tightening screw is fixed to the tightening end of the lower brake belt through the bracket, and the front end of the tightening screw is threadedly connected to the tightening nut of the lever assembly.

[0015] As a further description of the present invention, at least one brake support frame is disposed at the lower portion of the lower brake band, and the brake support frame is provided with an adjusting bolt for supporting the lower brake band, and the adjusting bolt is vertically directed toward the outer side of the lower brake band.

[0016] Compared with the prior art, the technical effects of the utility model are:

[0017] The utility model provides a large anchor windlass belt brake device, comprising an upper brake belt and a lower brake belt, one end of the upper brake belt and the lower brake belt are hinged into a whole through a pin shaft; a tightening side pull plate is welded to the other end of the upper brake belt, the tightening side pull plate is fixed on the engineering ship, and the tightening end of the lower brake belt is connected to a handwheel mechanism through a tightening screw rod and a lever assembly; the lever assembly comprises a lever plate, a tightening nut, and a T-nut; the handwheel mechanism comprises a brake handwheel, a brake screw, a locking nut, a screw guide tube, a thrust bearing, a distance ring, a shaft sleeve, and a protective ring; the tightening screw is matched with the tightening nut, and the brake screw is matched with the T-nut, which is convenient for operators to operate, and a thrust bearing is added at the bottom of the brake screw to make braking more labor-saving; a large anchor windlass belt brake device is provided, which can be easy to install, easy to adjust, and can reduce the operating force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall structural view of the utility model;

[0019] Figure 2 It is the AA section view of the hand wheel mechanism of the utility model;

[0020] Figure 3 It is a BB cross-sectional view of the lever assembly of the utility model in cooperation with the tightening bolt;

[0021] Figure 4 It is a plan view of the lever plate of the utility model;

[0022] Figure 5 It is a cross-sectional view of the lever plate of the utility model;

[0023] Figure 6 This is a view of the tightening screw of the utility model.

[0024] In the figure, 1. upper brake band, 11. tight side pull plate, 2. lower brake band, 21. bracket, 3. pin shaft, 4. tightening screw, 5. lever assembly, 51. lever plate, 511. connecting plate, 512. round tube, 513. protective frame, 52. tightening nut, 53. T-nut, 54. articulated frame, 6. handwheel mechanism, 61. brake handwheel, 62. brake screw, 63. locking nut, 64. screw guide tube, 65. thrust bearing, 66. distance ring, 67. bushing, 68. protective ring, 7. mounting frame, 8. brake support frame, 81. adjusting bolt. DETAILED DESCRIPTION

[0025] The utility model is described in detail below with reference to the accompanying drawings:

[0026] In one embodiment of the utility model, a large anchor windlass belt brake device is disclosed, referring to Figure 1-6 As shown, it includes an upper brake belt 1 and a lower brake belt 2. One end of the upper brake belt 1 and the lower brake belt 2 are hinged into a whole through a pin shaft 3; the other end of the upper brake belt 1 is welded with a tightening side pull plate 11, and the tightening side pull plate 11 is fixed on the engineering ship. The other end of the lower brake belt 2 is a tightening end, which is connected to a handwheel mechanism 6 through a tightening screw 4 and a lever assembly 5. The handwheel mechanism 6 includes a brake screw 62.

[0027] Specifically, in this embodiment, the lever assembly 5 includes: a lever plate 51, a tightening nut 52, and a T-nut 53; Figure 4-5 As shown, the lever plate 51 is configured as two parallel overlapping plates, and a connecting plate 511 is provided between the two plates for connection. A round tube 512 is provided at one end of the lever plate 51, and a pair of copper sleeves are provided at the end of the lever plate 51 close to the outer side of the round tube 512. The tightening nut 52 is installed on the copper sleeve and connected to the tightening screw 4 through a thread. A pair of copper sleeves are provided at the other end of the lever plate 51, and the T-nut 53 is installed on the copper sleeve and connected to the brake screw 62 through a T-thread. A protective frame 513 is provided at the lever plate 51 corresponding to the round tube 512, and the protective frame 513 is provided with a pin shaft penetrating the round tube 512. The protective frame 513 is provided to connect the lever plates 51 on both sides, so as to play a supporting and protective role.

[0028] The bottom of the tightening end of the lower brake band 2 is provided with a bracket 21 for fixing and rotating the tightening screw 4, and a pin is provided on the bracket 21; the rear end of the tightening screw 4 is set as a hexagonal structure, and the front end is set as a threaded structure; the hexagonal structure can be rotated with a wrench to adjust the clearance when the brake device is installed; the rear end of the tightening screw 4 is fixed to the tightening end of the lower brake band 2 through the pin of the bracket 21, and the front end of the tightening screw 4 is threadedly connected to the tightening nut 52 of the lever assembly 5. By adding the tightening screw 4 between the lower brake band 2 and the lever assembly 5, the manufacturing and installation errors can be reduced.

[0029] In this embodiment, the handwheel mechanism 6 is fixed on the engineering ship through the mounting frame 7, which includes: a brake handwheel 61, a brake screw 62, a locking nut 63, a screw guide tube 64, a thrust bearing 65, a distance ring 66, a sleeve 67, and a protective ring 68; specifically, the brake handwheel 61 is located at the top of the brake screw 62, and the locking nut 63 is located at the bottom of the brake screw 62. In this embodiment, the brake screw 62 is vertically arranged, and a T-type thread is arranged in the middle of the brake screw 62, and the T-type thread cooperates with the lever The T-nut 53 of the assembly; the lower end of the brake screw 62 is installed in the screw guide tube 64 through the thrust bearing 65, the bottom of the screw guide tube 64 is installed on the mounting frame 7, and the inner hole of the screw guide tube 64 is equipped with a sleeve 67, and the thrust bearing 65 is fixed to the bottom of the brake screw 62 through the distance ring 66 and the locking nut 63; the sleeve 67 extends from the upper part of the thrust bearing 65 to the upper part of the screw guide tube 64 and exposes the screw guide tube 64, and the sleeve 67 and the top of the screw guide tube 64 are sleeved with a protective ring 68.

[0030] The brake screw 62 is designed in a vertical direction. As the size of the anchor chain wheel becomes larger and larger, the conventional brake screw 62 is installed horizontally, and the position of the brake hand wheel 61 will be very high, which is inconvenient and unsafe. The vertical brake screw 62 can keep the operator away from the anchor chain wheel, increase the force ratio of the lever plate 51, and reduce the force of the brake screw 62. At the same time, the height of the brake hand wheel 61 can be designed to be about 1.2m according to needs, which is convenient for operators to operate. In addition, a thrust bearing 65 is added to the bottom of the brake screw 62. The conventional brake screw 62 rotates slowly due to manual operation and the force it receives is not large, so a copper sleeve is installed at the bottom. In this embodiment, a thrust bearing 65 structure is used at the bottom of the brake screw 62 to change the sliding friction into rolling friction, which is more labor-saving for operators when braking.

[0031] It should also be noted that at least one brake support frame 8 is arranged at the lower part of the lower brake band 2, and the brake support frame 8 is provided with an adjusting bolt 81 for supporting the lower brake band 2, and the adjusting bolt 81 is vertically facing the outside of the lower brake band 2. In this embodiment, two corresponding groups of brake support frames 8 and adjusting bolts 81 are arranged, one group is located at the bottom of the tightening end of the lower brake band 2, and the other group is located in the middle position of the lower brake band 2. Specifically, the adjusting bolt 81 is installed on the brake support frame 8, and the distance between the adjusting bolt 81 and the lower brake band 2 is controlled by adjusting the protruding length of the bolt 81.

[0032] By setting two adjusting bolts 81 at the lower part of the tightening end of the lower brake belt 2, the upper brake belt 1 and the lower brake belt 2 of the brake device are relatively heavy. When the brake is opened, the upper brake belt 1 is still pressed on the anchor chain wheel and cannot be completely disengaged. Specifically, the two adjusting bolts 81 are used to limit the lower brake belt 2 from being unfolded downward too much, so that the lower brake belt 2 is unfolded along the circumferential direction, forcing the upper brake belt 1 to unfold upward, so that the upper brake belt 1 can have enough clearance to disengage from the anchor chain wheel, thereby ensuring that the brake is opened.

[0033] In this embodiment, after the above-mentioned brake device is completely installed, the tightening screw 4 can be rotated by using a wrench at the hexagonal structure at the rear end of the tightening screw 4 to adjust the distance between the tightening nut 52 and the lower brake band 2, thereby avoiding the problem of the brake device being unusable due to errors in the manufacture and installation of the brake device.

[0034] Through the above content, the technical solution of the utility model is disclosed. The use of the brake device includes a braking process and a releasing process. Specifically:

[0035] Braking process: By rotating the brake hand wheel 61 clockwise, the T-shaped nut 53 is driven to move downward, and the T-shaped nut 53 is fixed on the lever plate 51 of the lever assembly 5, so that the lever plate 51 drives the tightening screw 4 to tilt upward, tightening the upper brake band 1 and the lower brake band 2 to hold the brake wheel hub, thereby achieving the braking effect;

[0036] Loosening process: By rotating the brake handwheel 61 counterclockwise, the T-nut 53 is driven to move upward, and the T-nut 53 is fixed on the lever plate 51 of the lever assembly 5, so that the lever plate 51 drives the tightening screw 4 to push downward, so that the upper brake band 1 and the lower brake band 2 are disengaged from the brake hub, thereby achieving the effect of loosening.

[0037] In order to better illustrate the use of this embodiment, during the actual use of the brake device of this embodiment, according to the requirement of the maximum braking force of the anchor chain wheel, combined with the size of the wrap angle formed by the upper brake belt 1 and the lower brake belt 2 of the brake device, the Euler formula is used to calculate the force exerted on the tight side pull plate 11 and the end of the lower brake belt 2; according to the force exerted on the end of the lower brake belt 2, the diameter and thread specification of the tightening screw 4 are designed; then, according to the lever ratio formed by the lever assembly 5, the force exerted on the brake screw 62 is calculated; according to the force exerted on the brake screw 62, the specification size of the T-shaped thread on the brake screw 62 and the force required for braking the brake handwheel 61 are designed.

[0038] Maximum braking force of the anchor chain wheel P=F 支 ×D L / D;

[0039] F 支 - load supported by the anchor chain pulley;

[0040] D L - pitch diameter of the anchor chain wheel;

[0041] D——brake hub diameter;

[0042] Tight side tension plate tension T = P × е μα / (е μα -1)

[0043] Loose side pull plate tension (force on the end of the lower brake band) t = P / (е μα -1);

[0044] e – base of natural logarithms;

[0045] μ——Brake band friction coefficient;

[0046] α——Contact angle of the brake band on the brake hub;

[0047] The force on the brake screw is F=t / i;

[0048] i——Transmission ratio at both ends of the lever plate.

[0049] The above content discloses the technical solution of the utility model. Compared with the prior art, the utility model has the following advantages:

[0050] 1. The utility model can reduce the manufacturing and installation errors by adding a tightening screw between the lower brake band and the lever assembly of the brake device;

[0051] 2. The present invention is provided with an adjusting bolt under the lower brake belt, so that the upper brake belt and the lower brake belt can be easily disengaged;

[0052] 3. The utility model can lower the operating height of the brake hand wheel through the vertical brake screw; a thrust bearing is added to the bottom of the brake screw, which can save the operator effort.

[0053] 4. The brake device of the utility model is not only convenient for equipment installation, but also more convenient for operators to use, while improving the safety of equipment use.

[0054] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A large windlass band brake device, comprising an upper brake band and a lower brake band, one end of the upper brake band and the lower brake band being hinged by a pin, characterized in that: The other end of the upper brake band is welded with a tightening side pull plate, and the other end of the lower brake band is a tightening end, which is connected to the hand wheel mechanism through a tightening screw and a lever assembly; Wherein, the lever assembly comprises a lever plate, and tightening nuts and T-nuts arranged at both ends of the lever plate; The handwheel mechanism comprises a brake handwheel and a brake screw rod vertically arranged at the lower part of the brake handwheel; The tightening nut matches the front end of the tightening screw rod, and the T-shaped nut matches the brake screw rod.

2. A large windlass band brake device according to claim 1, characterized in that: The handwheel mechanism also includes a locking nut located at the bottom of the brake screw, a screw guide tube is sleeved outside the locking screw on the upper part of the locking nut, a thrust bearing is embedded in the bottom of the screw guide tube, and a distance ring is arranged at the bottom of the thrust bearing.

3. A large windlass band brake device according to claim 2, characterized in that: A shaft sleeve is arranged between the screw guide tube and the brake screw, and the shaft sleeve extends from the upper part of the thrust bearing to the upper part of the screw guide tube and exposes the screw guide tube.

4. A large windlass band brake device according to claim 3, characterized in that: A protective ring is provided on the shaft sleeve and the top of the screw guide tube.

5. A large windlass band brake device according to claim 1, characterized in that: The bottom of the tightening end of the lower brake belt is provided with a bracket for fixing the tightening screw and being rotatable; The rear end of the tightening screw is set as a hexagonal structure, and the front end is set as a threaded structure. The rear end of the tightening screw is fixed to the tightening end of the lower brake belt through the bracket, and the front end of the tightening screw is threadedly connected to the tightening nut of the lever assembly.

6. A large windlass band brake device according to any one of claims 1 to 5, characterized in that: At least one brake support frame is arranged at the lower part of the lower brake band, and the brake support frame is provided with an adjusting bolt for supporting the lower brake band, and the adjusting bolt is vertically facing the outer side of the lower brake band.

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