阅读说明：本技术 一种绞车滚筒制动装置 (Winch drum braking device ) 是由 陈勇 孙德标 焦龙 于 2019-10-29 设计创作，主要内容包括：一种绞车滚筒制动装置,属于绞车制动技术领域,包括前后两个固定支座,两固定支座间通过轴承安装有转轴,转轴上通过定位键固定有轮形的绞车滚筒,绞车滚筒外圈后侧通过若干横向螺栓固定有大齿圈,绞车滚筒外圈前侧通过若干纵向螺栓固定有紧贴大齿圈的摩擦卷筒,前侧的固定支座左右两侧均固定有水平向外的制动油缸,制动油缸活塞杆端部固定有与绞车滚筒内圈面相匹配的弧形制动闸瓦。本制动装置采用双制动油缸对称布置方式设计,直接制动于绞车滚筒,制动力作用于需要制动的源头,制动力矩大,安全系数高,制动效果好,制动力对称、均匀,对整机无冲击,绞车滚筒不需要特制,成本低,占用空间较小,安装方便,使用便捷。(The utility model provides a winch cylinder arresting gear, belong to winch braking technical field, including two fixing support in the front and back, install the pivot through the bearing between two fixing support, be fixed with the winch cylinder of wheel shape through the navigation key in the pivot, winch cylinder outer lane rear side has big ring gear through a plurality of horizontal bolt fastening, winch cylinder outer lane front side has the friction reel of hugging closely big ring gear through a plurality of vertical bolt fastening, the fixing support left and right sides of front side all is fixed with the outside brake cylinder of level, brake cylinder piston rod end fixing have with winch cylinder inner race face assorted arc brake shoe. The braking device adopts the design of the symmetrical arrangement mode of the double braking oil cylinders, directly brakes the winch drum, the braking force acts on a source needing braking, the braking torque is large, the safety coefficient is high, the braking effect is good, the braking force is symmetrical and uniform, no impact is caused to the whole machine, the winch drum does not need to be specially made, the cost is low, the occupied space is small, the installation is convenient, and the use is convenient.)

1. The utility model provides a winch cylinder arresting gear, installs fixing support (4) of bearing including two around, installs pivot (7) through the bearing between two fixing support (4), characterized by, pivot (7) on be fixed with winch cylinder (3) of wheel shape through the navigation key, winch cylinder (3) outer lane rear side be fixed with bull gear (1) through a plurality of transverse bolt (13), winch cylinder (3) outer lane front side is fixed with friction reel (2) of hugging closely bull gear (1) through a plurality of vertical bolt (14), fixing support (4) left and right sides of front side all is fixed with the outside brake cylinder of level (5), brake cylinder (5) piston rod end fixing have with winch cylinder (3) inner circle face assorted arc brake shoe (6).

2. The winch drum brake arrangement according to claim 1, wherein the two brake cylinders (5) are located on the horizontal center line of the circle formed by the winch drum (3).

3. The winch drum braking device according to claim 1, wherein a disc spring (12) is sleeved on a piston rod of the brake cylinder (5), and the disc spring (12) is positioned between a cylinder body of the brake cylinder (5) and the inner side surface of the brake shoe (6).

4. The winch drum brake assembly according to claim 1, wherein the brake shoe (6) is threadedly engaged with the piston rod of the brake cylinder (5).

Technical Field

The invention belongs to the technical field of winch braking, and particularly relates to a winch drum braking device.

Background

In the existing mine transportation machinery technology, a more common technology is an endless rope continuous winch adopting a double-speed reducer, the endless rope continuous winch with the structure drives the reducer to drive a final-stage pinion to operate through a coupler by a motor, then drives a final-stage gearwheel to operate through the final-stage pinion, and the final-stage gearwheel and a friction drum are integrated, so that the friction drum is driven to wind a rope to further perform traction work (as shown in fig. 3). The conventional braking device for the endless rope continuous winch is an electro-hydraulic push rod brake, the electro-hydraulic push rod brake acts on a braking wheel of a two-shaft speed reducer, the drum cannot be directly braked, the braking performance of the drum is poor, and the safety risk of braking failure exists. The wheel edge brake device can directly act on the roller, but the roller needs special manufacture, has a complex structure, is more occupied, has a longer processing period and is high in manufacturing cost.

Disclosure of Invention

The invention provides a winch drum braking device, which aims to solve the problems that an electro-hydraulic push rod brake cannot directly brake a drum in the existing winch braking, the braking performance is poor, and the safety risk of braking failure exists, and the problems that the drum needs to be specially manufactured, the structure is complex, the duty is large, the processing period is long, and the manufacturing cost is high in the wheel-side brake braking.

The invention is realized by the following technical scheme.

The utility model provides a winch cylinder arresting gear, includes two fixing support who installs the bearing around, installs the pivot through the bearing between two fixing support, characterized by, the pivot on be fixed with the winch cylinder of wheel shape through the navigation key, winch cylinder outer lane rear side have the bull gear through a plurality of horizontal bolt fastening, winch cylinder outer lane front side has the friction reel of hugging closely the bull gear through a plurality of vertical bolt fastening, the fixing support left and right sides of front side all is fixed with the outside brake cylinder of level, brake cylinder piston rod end fixing have with winch cylinder inner race face assorted arc brake shoe.

The winch drum braking device is characterized in that the two braking oil cylinders are positioned on a horizontal central line of a circle formed by the winch drum.

The winch drum braking device is characterized in that a disc spring is sleeved on a piston rod of the brake cylinder and is positioned between a cylinder body of the brake cylinder and the inner side surface of the brake shoe.

The winch drum braking device is characterized in that the brake shoe is screwed with the piston rod of the brake cylinder through threads.

The invention has the beneficial effects that: 1. the double-brake oil cylinder symmetrical arrangement mode is adopted for design, the winch drum is directly braked, the braking force acts on a source needing braking, the braking torque is large, the risk of braking failure is avoided, the safety coefficient is high, and the braking effect is efficient and remarkable; 2. the brake force is symmetrical and uniform in a symmetrical arrangement mode, no impact is caused to the whole machine, and the service life of the whole machine can be prolonged; 3. the winch roller does not need to be specially made, the cost is low, and the two braking oil cylinders act on the inner side of the winch roller, so that the winch roller occupies a small space, is convenient to install and is convenient and fast to use.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

FIG. 3 is a schematic diagram of the winch drive configuration.

In the drawings: 1. the large gear ring comprises a large gear ring, 2, a friction drum, 3, a winch drum, 4, a fixed support, 5, a brake oil cylinder, 6, a brake shoe, 7, a rotating shaft, 8, a motor, 9, a coupler, 10, a speed reducer, 11, a pinion, 12, a disc spring, 13, a transverse bolt, 14 and a longitudinal bolt.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

As shown in the attached drawing, a winch drum braking device comprises a front fixed support 4 and a rear fixed support 4 which are provided with bearings, a rotating shaft 7 is arranged between the two fixed supports 4 through the bearings, a wheel-shaped winch drum 3 is fixed on the rotating shaft 7 through a positioning key, a large gear ring 1 is fixed on the rear side of the outer ring of the winch drum 3 through four transverse bolts 13, a friction drum 2 tightly attached to the large gear ring 1 is fixed on the front side of the outer ring of the winch drum 3 through four longitudinal bolts 14, brake cylinders 5 which are horizontally outward are fixed on the left side and the right side of the fixed support 4 on the front side, two brake cylinders 5 are positioned on the horizontal central line of a circle formed by the winch drum 3, an arc-shaped brake shoe 6 matched with the inner ring surface of the winch drum 3 is fixed on the end part of a piston rod of the brake cylinder 5, the brake shoe 6 is screwed with a piston rod of the brake cylinder 5 through, the disc spring 12 is positioned between the cylinder body of the brake cylinder 5 and the inner side surface of the brake shoe 6.

The winch drum braking device drives the speed reducer 10 through the motor 10 through the coupler 9, the output shaft of the speed reducer 9 drives the pinion 11 to rotate, the pinion 11 is meshed with the large gear ring 1, the large gear ring 1 is fixed on the winch drum 3, meanwhile, the friction drum 2 is also fixed on the winch drum 3, namely, the large gear ring 1, the winch drum 3 and the friction drum 2 can be driven to rotate together, the friction drum 2 winds a cable rope to move the winch, and the driving principle of the endless rope winch is achieved. When the winch works, the hydraulic system presses the front cavity of the brake oil cylinder 5, the piston rod of the brake oil cylinder 5 is recovered, and the brake shoe 6 is driven to be separated from the inner side surface of the winch roller 3, so that the brake opening action is realized; when braking is needed, the hydraulic system is controlled to lose pressure, the disc spring 12 recovers deformation, the extension elastic force generated by the disc spring 12 enables the piston rod of the brake oil cylinder 5 to extend out, the outer side surface of the brake shoe 6 is in contact with the inner circle surface of the winch roller 3 to generate friction force, braking of the winch roller 3 is achieved, and the friction roller 2 can stop running at the same time.

The brake shoe 6 is in threaded connection with a piston rod of the brake cylinder 5, so that the acting gap between the brake shoe 6 and the inner side surface of the winch drum 3 can be conveniently adjusted, the size of the brake force can be adjusted, and the purpose of adjusting the brake stroke is achieved.

The winch drum braking device is designed in a double-brake oil cylinder symmetrical arrangement mode, directly brakes a winch drum, acts on a source needing braking, is large in braking torque, free of braking failure risk, high in safety coefficient, efficient and remarkable in braking effect, symmetrical and uniform in braking force, free of impact on a whole machine, capable of prolonging the service life of the whole machine, capable of using the winch drum in a conventional model, free of special manufacture and low in cost, and convenient to install and use due to the fact that the two brake oil cylinders act on the inner side of the winch drum.