CN2739408Y

CN2739408Y - Manual brake

Info

Publication number: CN2739408Y
Application number: CN 200320123620
Authority: CN
Inventors: 李炳文; 王启广; 陈为民; 王建武
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2003-12-27
Filing date: 2003-12-27
Publication date: 2005-11-09
Anticipated expiration: 2013-12-27

Abstract

The utility model relates to a manual brake applied to a mine winch, which can be used on a conveying winch and a transporting winch, and can also be used on a dispatch winch, a prop-pulling winch and a low-speed winch; the utility model can be singly used, and a same winch can simultaneously use a plurality of brakes. The manual brake comprises a handle device, which is amplified through the two poles of the hand force, transferring acting force to a brake disk, and the smaller hand force is converted into the larger brake force through the principle of the Euler friction transmission. The utility model has the characteristics of simple structure, large brake force, flexible and convenient operation, etc.

Description

A kind of hand brake lock

One, technical field

The utility model relates to a kind of stopping brake, the hand brake lock that uses on a kind of mine winch of more specifically saying so.

Two, background technique

Present handgrip stopping brake, include half gear that is fixed on the basis, hinged the extending upwardly in heart position put on display a restrictor bar therein, the restrictor bar upper end is provided with handgrip, be hinged with in the upper end portion of restrictor bar and draw handle, the underpart is hinged with pull bar and the strap of the brake is hinged, and plug in shovel is placed on the pull bar, and can slide up and down along the projection on the pull bar, the upper end of plugging in shovel is fixed with wire drawing, the other end of wire drawing is fixed on and draws last, and an end of extension spring is fixed on and draws last, and the other end is fixed on the restrictor bar, there is following shortcoming in this manual braking device, because mine winch all uses in the spacious down-hole of coal, work under bad environment, half gear on the stopping brake is easy to be stained with by coal petrography or earth, time one is long, coal petrography or coal slime hardening can not be inserted in half gear grooved plug in shovel under the effect of extension spring, cause lock not pin safely.

Three, technology contents

1. goal of the invention

The purpose of this utility model provides a kind of safe and reliable, hand brake lock that braking force is big.

2. technological scheme

The purpose of this utility model can realize in the following manner: a kind of hand brake lock, include the strap of the brake, the strap of the brake is wrapped in brake disc, the one end is hingedly fixed on the basis, the other end is hinged by bearing pin and bolt draw bar, on the strap of the brake between the strap of the brake and the brake disc, be fixed with brake bush, described hand brake lock also includes the brake lever device, its downside is fixed with axis pin base, one end of bolt draw bar links to each other with axis pin base with bearing pin, the other end links to each other with bolt draw bar one end with adjusting nut, the other end of described bolt draw bar is hinged with the upper end of the long ratio plate that is equivalent to rocking bar, the lower end and the axis pin base of long ratio plate are hinged, link to each other with adjusting nut between the bolt draw bar, and the other end of spiral pull bar is hinged with short ratio plate upper end by bearing pin, the other end of spiral pull bar is hinged by bearing pin and the strap of the brake one end, the lower end of long ratio plate and short ratio plate is installed in the two ends of spline bearing pin respectively, and when long ratio plate was swung, short ratio plate is swing thereupon also.

Described handle assembly includes axis pin base, it includes a base plate, the base plate upside is fixed with two parallel otic placodes, have through hole on the otic placode, be mounted with gudgeon between two otic placodes, the otic placode both sides are fixed with clamping plate, otic placode, gudgeon and clamping plate are through together by bearing pin, and gudgeon can rotate around bearing pin, are fixed with the restrictor bar cover at the upside of gudgeon, described restrictor bar cover is tubular structure, its lower end and gudgeon are welded together, and the outside, middle part of restrictor bar cover is fixed with axis pin base, and the lower end of restrictor bar is stretched in the restrictor bar cover, be provided with spring between restrictor bar cover and the restrictor bar, the restrictor bar lower end is spacing by bearing pin, and the upper end of restrictor bar is fixed with handgrip, for preventing the bearing pin evagination, be respectively equipped with baffle plate in its both sides, baffle plate is fixed on the clamping plate.Described clamping plate top has a slotted eye, slotted eye upside sawtooth like shape.

3. technique effect

The utility model compared with prior art has following advantage: because handle assembly all is closed, so operating handle is flexible, brake reliable and secure; In addition, through two-stage amplify manually, act on the slack list of the stopping brake application of force, by Euler's friction driving principle, make stopping brake produce bigger braking force to Brake drum, operation easily, convenient.

Four, description of drawings

Accompanying drawing 1 is a structural front view of the present utility model.

Accompanying drawing 2 is structure plan views of the present utility model.

Accompanying drawing 3 is A-A sectional drawings of Fig. 1.

Accompanying drawing 4 is structural representations of the utility model clamping plate.

Five, embodiment

The utility model is described in further detail with reference to the accompanying drawings:

Shown in accompanying drawing 1,2: a kind of hand brake lock, comprise handle assembly 1, its downside is fixed with axis pin base 2, one end of spiral pull bar 3 links to each other with axis pin base 2 with bearing pin, the other end links to each other with bolt draw bar 6 with adjusting nut 4, loosening at work for preventing adjusting nut 4, on the spiral pull bar 3 of the both sides of adjusting nut 4 and spiral pull bar 6, be respectively equipped with locking nut 5, described spiral pull bar 6 one ends are hinged by bearing pin and long ratio plate 7 upper ends, the lower end of long ratio plate 7 is hinged by spline bearing pin 16 and axis pin base 8, and long ratio plate 7 is equivalent to a rocking bar.Link to each other with adjusting nut 10 between the spiral pull bar 9,11, loosening for preventing adjusting nut 10, its both sides are respectively equipped with locking nut 18, the other end of spiral pull bar 9 is hinged with short ratio plate 17 upper ends by bearing pin, the lower end of long ratio plate 7 and short ratio plate 17 is installed in the two ends of spline bearing pin 16 respectively, when long ratio plate 7 was swung, short ratio plate 17 is swing thereupon also.One end of the strap of the brake 12 is hinged by the other end of bearing pin and spiral pull bar 11, and after the strap of the brake 12 was wrapped in brake disc 13, its other end was hinged on the basis, is provided with brake bush 14 between the strap of the brake 12 and the brake disc 13, and brake bush 14 usefulness rivets 15 are fixed on the strap of the brake 12.

Shown in accompanying drawing 3,4, Fig. 3 has showed the structural representation of handle assembly.Handle assembly 1 includes axis pin base 1-8, it includes a base plate, the base plate upside is fixed with two parallel otic placodes, have through hole on the otic placode, be mounted with gudgeon 1-5 between two otic placodes, the otic placode both sides are fixed with clamping plate 1-7, otic placode, gudgeon 1-5 and clamping plate 1-7 are through together by bearing pin 1-10, and gudgeon 1-5 can be around bearing pin 1-10 rotation, are fixed with restrictor bar cover 1-3 at the upside of gudgeon 1-5, described restrictor bar cover 1-3 is a tubular structure, its lower end and gudgeon 1-5 are welded together, and the outside, middle part of restrictor bar cover 1-3 is fixed with axis pin base 2, and the lower end of restrictor bar 1-2 is stretched in the restrictor bar cover 1-3, be provided with spring 1-4 between restrictor bar cover 1-3 and the restrictor bar 1-2, restrictor bar 1-2 lower end is spacing by bearing pin 1-11, and the upper end of restrictor bar 1-2 is fixed with handgrip 1-1, for preventing bearing pin 1-11 evagination, be respectively equipped with baffle plate 1-6 in its both sides, baffle plate 1-6 is fixed on the clamping plate 1-7.Described clamping plate 1-7 top has a slotted eye 1-12.Slotted eye 1-12 upside is provided with the sawtooth like shape.

Claims

1. hand brake lock, include the strap of the brake (12), the strap of the brake (12) is wrapped in brake disc (13), the one end is hingedly fixed on the basis, the other end is hinged by bearing pin and bolt draw bar (11), on the strap of the brake (12) between the strap of the brake (12) and the brake disc (13), be fixed with brake bush (14), it is characterized in that: described hand brake lock also includes brake lever device (1), its downside is fixed with axis pin base (2), one end of bolt draw bar (3) links to each other with axis pin base (2) with bearing pin, the other end links to each other with bolt draw bar (6) one ends with adjusting nut (4), the other end of described bolt draw bar (6) is hinged with the upper end of the long ratio plate (7) that is equivalent to rocking bar, the lower end and the axis pin base (8) of long ratio plate (7) are hinged, bolt draw bar (9), (11) link to each other with adjusting nut (10) between, the other end of spiral pull bar (9) is hinged with short ratio plate (17) upper end by bearing pin, the other end of spiral pull bar (11) is hinged by bearing pin and the strap of the brake (12) one ends, the lower end of long ratio plate (7) and short ratio plate (17) is installed in the two ends of spline bearing pin (16) respectively, when making long ratio plate (7) swing, short ratio plate (17) is swing thereupon also.

2. a kind of hand brake lock according to claim 1, it is characterized in that: described handle assembly (1) includes axis pin base (1-8), it includes a base plate, the base plate upside is fixed with two parallel otic placodes, have through hole on the otic placode, be mounted with gudgeon (1-5) between two otic placodes, the otic placode both sides are fixed with clamping plate (1-7), otic placode, gudgeon (1-5) and clamping plate (1-7) are through together by bearing pin (1-10), gudgeon (1-5) can rotate around bearing pin (1-10), upside at gudgeon (1-5) is fixed with restrictor bar cover (1-3), described restrictor bar cover (1-3) is a tubular structure, (1-5) is welded together for its lower end and gudgeon, the outside, middle part of restrictor bar cover (1-3) is fixed with axis pin base (2), the lower end of restrictor bar (1-2) is stretched in the restrictor bar cover (1-3), be provided with spring (1-4) between restrictor bar cover (1-3) and the restrictor bar (1-2), restrictor bar (1-2) lower end is spacing by bearing pin (1-11), the upper end of restrictor bar (1-2) is fixed with handgrip (1-1), for preventing bearing pin (1-11) evagination, be respectively equipped with baffle plate (1-6) in its both sides, baffle plate (1-6) is fixed on the clamping plate (1-7).

3. a kind of hand brake lock according to claim 2 is characterized in that: described clamping plate (1-7) top has a slotted eye (1-2), slotted eye (1-12) upside sawtooth like shape.