CN2771169Y

CN2771169Y - Sinking winch

Info

Publication number: CN2771169Y
Application number: CN 200520080053
Authority: CN
Inventors: 胡武臣; 杨家芳; 王合顺; 燕云龙; 刘文江
Original assignee: Jinan Heavy Industry JSCL
Current assignee: Jinan Heavy Industry JSCL
Priority date: 2005-01-19
Filing date: 2005-01-19
Publication date: 2006-04-12
Anticipated expiration: 2015-01-19

Abstract

The utility model discloses a shaft-sinking winch, which comprises an electric motor, a service brake, a decelerator, a main shaft device and a safety brake, wherein the safety brake comprises two brake scotches, two brake arms, a hydraulic pusher and a counter weight. The brake arms and the hydraulic pusher are all fixed on a machine frame, and the brake scotches are hinged with the two brake arms that are indirectly connected. A lever is formed by the brake arms, the hydraulic pusher and the counter weight, wherein the hydraulic pusher is a supporting point and two end points of the lever are respectively connected with the counter weight and the brake arms. The utility model has the advantages of large lifting capacity allowing the static tension of a steel cable to reach 400KN, large cope capacity, capability of bidirectional braking stably, simple structure, light weight and small occupation area. Additionally, the design of the machine frame and the main shaft avoids stress concentration and foundation bolts can be arranged according to the conditions of stress.

Description

Sinking winch

(1) technical field

The utility model relates to a kind of winch, particularly a kind of sinking winch that is used for the suspention of mine development end equipment.

(2) background technology

Along with the development of well construction technology, large-scale mine is more and more, and gypsy winch can not meet requirements, as the deep-well more than the km, steel rope weight just reaches more than 20 ton, and at present, large-scale mine often adopts the friction type winch, this winch mainly has the following disadvantages: 1, sure brake is a belt, it is too urgent to brake, and broken belt is arranged or damage the possibility of other member, causes two subsidiary risks, and can only one-way brake, use limited; 2, complex structure, weight is big, and floor area is big, is unsuitable for local narrow zone and uses; 3, on the reel grooving is arranged, so the steel rope scope of using is narrow, the profile wire rope can not use, and can not twine as the flat steady rope of mine main at all, changing the rope use so the friction-type winch can not be done maintenance; 4, input and the mouth of steel rope on reel has huge pulling force poor, so the length of steel rope on reel is changing, promptly produces wriggling, and it is not steady to work, and damages steel rope easily; 5, have many shortcomings on manufacturing and designing: 1. main shaft is connected employing key, semicircular ring location with reel, will spline and circular groove on the main shaft like this, makes to occur area of stress concentration on the main shaft; 2. frame lower is the semi-open-type structure, insufficient rigidity, and according to structure, anchoring bolt can not be arranged near stress point and the primary structure member, can not import power into basis nearby, makes the frame weakness also be subjected to big stress, damages frame easily.

(3) summary of the invention

The technical problems to be solved in the utility model is: provide that little in light weight, the hoisting capacity of a kind of relative volume is big, applied range, can bi-directional braking and brake the pulsation-free sinking winch.

In order to solve the problems of the technologies described above, the utility model comprises electrical motor, service brake, retarder, main shaft device and sure brake, described sure brake comprise with main shaft device on brake wheel two brake scotch, two brake control levers, hydraulic driver and weights of matching; Brake control lever and hydraulic driver all are fixed on the frame, and brake scotch and brake control lever are hinged, and two brake control levers link to each other indirectly; Brake control lever, hydraulic driver and weight are formed a lever, and hydraulic driver is a fulcrum, and weight links to each other with two-end-point respectively with brake control lever.

In order when declutching, to make the even folding of brake control lever, make between brake scotch and the brake wheel gap even, described sure brake has two adjustment supports that are fixed on the frame, and two adjust the outside that supports lay respectively at two brake control levers.

In order to reduce the danger of stress concentration, described main shaft device comprises main shaft and reel, and main shaft is an optical axis, left-right symmetric, reel by dowel fixes on main shaft.

For rigidity and the intensity that strengthens frame, frame is closed box structure, and anchor (bolt) hole is arranged on the forble board.

The utility model hoisting capacity is big, and the quiet pulling force of steel rope can reach 400KN, and Rong Shengliang is big; Adopt the tile type sure brake, can bi-directional braking, braking is steadily; Stress concentration has been avoided in the design of frame and main shaft, and holding-down bolt can be arranged according to the stressing conditions arrangement; And simple in structure, in light weight, floor area is little, and range of use is big.

(4) description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of sure brake of the present utility model.

Wherein: 1, electrical motor, 2, elastic coupling, 3, service brake, 4, retarder, 5, end-float coupling, 6, the tween drive shaft device, 7, main shaft device, 8, sure brake, 9, frame, 10, weight, 11, hydraulic driver, 12, brake rod, 13, L shaped contiguous block, 14, connecting plate, 15, pull bar, 16, the triangle contiguous block, 17, brake scotch, 18, brake control lever, 19, adjust support, 20, the braking arm seat.

(5) specific embodiment

As shown in the figure, this specific embodiment mainly comprises electrical motor 1, service brake 3, retarder 4, main shaft device 7 and sure brake 8.Electrical motor 1 is connected by elastic coupling 5 with retarder 4, and retarder 4 is connected with tween drive shaft device 6 by end-float coupling 5 with main shaft device 7.

Main shaft device 7 mainly comprises main shaft, gear, reel, brake wheel, bearing seat and bearing.Reel is enclosed within on the main shaft, main shaft is designed to optical axis, fix by 6 pins and reel, reel is close to gear, brake wheel and cooperates steel bushing to become as a whole with Bolt Connection, and steel bushing bears the twist moment from the gear transmission to the reel and passes to the lock torque of reel from brake wheel.Bolt then only plays the tension effect.Steel rope is fixed on the spoke of brake wheel with pressing plate by the hole on the brake wheel.

Sure brake 8 comprises two brake scotch 17, two brake control levers 18, hydraulic driver 11, weight 10 and two adjustment supports 19; On frame 9, be fixed with two braking arm seats 20, the lower end of brake control lever 18 and braking arm seat 20 are hinged, the middle part of the middle part of brake scotch 17 and brake control lever 18 is hinged, brake scotch 17 is clipped on the brake wheel of main shaft device 7, the brake control lever 18 on right side and an end of a pull bar 15 are hinged, the other end of this pull bar 15 is hinged on the triangle contiguous block 16, the brake control lever 18 in left side also is hinged on the triangle contiguous block 16, this triangle contiguous block 16 is also hinged with an other pull bar 15, and the lower end of this pull bar 15 is hinged on the lower end of L shaped contiguous block 13.The articulated brake rod 12 in the top of hydraulic driver 11, weight 10 hangs over an end of brake rod 12, and the upper end of the other end of brake rod 12 and aforementioned L shaped contiguous block 13 is hinged by connecting plate 14.Adjust support 19 and be fixed on the frame 9, lay respectively at the outside of two brake control levers 18.

Frame 9 is closed box structure, and the flex point on the frame is few, anchor (bolt) hole is arranged on forble board, and be arranged near the stress point.The main bearing member welding pattern of frame 9 adopts the joggle plug welding, and is furnished with suitable fillet weld.

Claims

1. sinking winch, comprise electrical motor (1), service brake (3), retarder (4), main shaft device (7) and sure brake (8), it is characterized in that: described sure brake (8) comprise with main shaft device (7) on brake wheel two brake scotch (17), two brake control levers (18), hydraulic driver (11) and the weight (10) that match; Brake control lever (18) and hydraulic driver (11) all are fixed on the frame (9), and brake scotch (16) and brake control lever (17) are hinged, and two brake control levers (18) link to each other indirectly; Brake control lever (18), hydraulic driver (11) and weight (10) are formed a lever, and hydraulic driver (11) is a fulcrum, and weight (10) links to each other with two-end-point respectively with brake control lever (18).

2. sinking winch according to claim 1 is characterized in that: described sure brake (8) has two adjustment supports (19) that are fixed on the frame (9), and two adjust the outside that support (19) lays respectively at two brake control levers (18).

3. sinking winch according to claim 1 and 2 is characterized in that: described main shaft device (7) comprises main shaft and reel, and main shaft is an optical axis, left-right symmetric, reel by dowel fixes on main shaft.

4. sinking winch according to claim 3 is characterized in that: frame (9) is closed box structure, and anchor (bolt) hole is arranged on the forble board.