CN2351414Y

CN2351414Y - Mine safety hook

Info

Publication number: CN2351414Y
Application number: CN 98247696
Authority: CN
Inventors: 曹洪尚
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-27
Filing date: 1998-11-27
Publication date: 1999-12-01
Anticipated expiration: 2008-11-27

Abstract

The utility model relates to an anti-dropping device for mines, which is characterized in that both ends of a cross beam are symmetrically provided with braking devices; the lower part of a main pull rod in a middle hole of the cross beam is connected with a supporting plate; both ends of the supporting board are connected with connecting plates; the two connecting plates are connected with wedge seats in the braking devices on both ends of the cross beam through a push rod respectively; making use of pressure generating from a spring arranged on the main pull rod, buffering and braking actions are completed through the two push rods strike wedges and positioning blocks and the wedges clamp a cage guide rope; the wedges, wedge blocks, and the planes of the positioning blocks are parallel to the axis of the cross beam. The utility model has the advantages of simple structure, low cost, and easy installation and adjustment, and is suitable for various mines.

Description

Mining falling protector

The utility model relates to a kind of safety device of mine hoist equipment, particularly a kind of can effectively the prevention because of the disconnected mining falling protector of restricting and causing cage to fall of hoisting cable.

At present, the parachute that uses on the mine, a class are that the braking by being fixedly connected on the cage that is suitable for using on the standard cage of big-and-middle-sized colliery large-tonnage lifting means is arrested system and is arranged on the split type parachute that the buffer gear two parts on the derrick constitute; One class is to be installed in to use the parachute that is absolute construction on the winding cage, the patent that is called " small-sized mining parachute " as a kind of notification number of the novel patent gazette bulletin of practicality for the CN2295725Y name, its structure is that the middle part of crossbeam is provided with for being the arm-tie of hoisting rope and hanging the suspension ring that cage is used, the curb girder of crossbeam both sides is provided with guiding mechanism and catching device, the spacing regulating plate of both sides, arm-tie bottom is connected with catching device by shift fork, and be equipped with spring and pressure regulator on two shift forks, cage in lifting process if hoisting cable when disrumpent feelings, the pressure that spring produces makes the catching device voussoir clamp cage guide rope by shift fork and finishes the buffer deceleration braking, though this falling protector is compared simple in structure with split type falling protector, cost is low, and can hang various non-standard cages, but because the catching device at falling protector two ends is to be symmetrical arranged and to be fixed on voussoir on the curb girder lateral surface and two by two two hypotenuses to be positioned at the voussoir middle part, the chock that has grooving on upper inclined surface and the straight flange corresponding with the voussoir hypotenuse constitutes, so start when arresting check band at the same time, owing to form the sum of errors surface finish difference of grooving when manufacturing chock inevitably, chock combines with the error of the relative bevel angle of voussoir in addition, the two chock braking procedures that cause asynchronous, the braking force that will cause the both sides of falling protector to produce at one time is different, make falling protector braking back produce, though and can adjust by pressure regulator for the formed braking force error of spring that is provided with respectively on two cooresponding shift forks of this falling protector, but caused manufacturing, assembling and mounting process complicated, and correspondingly raised cost.Again because the plane and the crossbeam axis of chock in this falling protector both sides catching device and voussoir are perpendicular, so the width of both sides catching device greater than the width of crossbeam, also makes its applicability be restricted.

The purpose of this utility model is to provide a kind of mining falling protector, and it is not only simple in structure, cost is low, and is easy to Installation and Debugging, and can be suitable for the needs of various mines to greatest extent.

Concrete solution is: place the bottom of the main tie in the crossbeam mider hole to be connected with a supporting plate, the two ends of supporting plate are symmetrically connected with connecting panel, and, two connecting panels are connected by the interior chock seat of a push rod and crossbeam two end braking devices respectively, and the strong point between the push rod two ends is by an axle bearing that is arranged on the support plate.Be positioned at and be socketed with a spring on the main tie between crossbeam and supporting plate.Be arranged in the brake equipment at crossbeam two ends, and chock seat bonded assembly chock is being fixed on deciding between piece and the voussoir on the base plate, to have a straight flange of grooving adjacent with deciding piece for the straight flange that chock has a grooving, and be provided with needle roller plate and backing plate between chock hypotenuse and voussoir hypotenuse, and, chock is provided with a guide groove or guide pillar, is provided with guide pillar or guide groove with this guide groove or the cooresponding base plate of guide pillar or cover plate, to stablize chock and operation thereof.And the below of needle roller plate and backing plate is fixedly connected with a tray, tray and with the cooresponding wedge surface of tray on be respectively arranged with groove and can place projection in the groove, to guarantee the stable of needle roller plate and backing plate and not come off.Upper and lower at brake equipment is respectively arranged with corresponding orienting sleeve, orienting sleeve is provided with vertical perforation pilot hole, cage guide rope as check band can place in the pilot hole, and its effect is that to remain between the corresponding orienting sleeve check band vertically stable, is beneficial to braking.

In addition then, voussoir, chock, decide the piece plane and parallel with the crossbeam axis.And chock, the grooving decided on the piece are V-slot.The angle on chock inclined-plane is 5 ° to 10 °.

The utility model only utilizes the pressure of the spring generation that is provided with on the main tie to stir chock by two push rods and finishes the buffer-braking action by deciding piece and chock clamping cage guide rope.And the chock in the brake equipment, voussoir, the plane of deciding piece and crossbeam parallel axes are provided with, and make it not only overcome in the prior art because of the tilt phenomenon of the asynchronous falling protector braking back generation that causes of two chock braking procedures effectively and must adjust the complicated of manufacturing that the formed braking force error of two springs causes, assembling, mounting process by pressure regulator.And overcome in the prior art defective that the width because of the both sides catching device is restricted its applicability greater than the crossbeam width effectively.The utility model is not only simple in structure, cost is low, and is easy to Installation and Debugging, and can be suitable for the needs of various mines to greatest extent.

In conjunction with the accompanying drawings the utility model is described in detail below by embodiment:

Fig. 1 is the utility model structural front view.

Fig. 2 is the utility model structure birds-eye view.

Fig. 3 is the A-A profile of Fig. 1.

Fig. 4 is the structural front view of chock.

Fig. 5 is the structure side view of chock.

Fig. 6 is the B-B section-drawing of Fig. 4.

Fig. 7 is the tray constructional drawing.

Among Fig. 1 to Fig. 7, crossbeam (1) is a grooved, its notch is downward, and two cover brake equipments are installed in the two ends of crossbeam respectively, in the brake equipment, deciding piece (8) and voussoir (3) all is fixedly connected on the base plate (10), the bevel angle of chock (6) is 8 °, and it is positioned at decides between piece (8) and the voussoir (3), decides to be equipped with the V-type grooving on corresponding of piece and the chock, and, be provided with the locking gap between the two.Be provided with needle roller plate (5) and backing plate (4) between chock and voussoir two inclined-planes.The backing plate of selecting different-thickness to have high strength, best bright finish can not only reduce resistance, and the spacing that can also regulate chock and decide piece.Voussoir (3), chock (6), decide the plane that piece (8) constitutes and parallel with the axis of crossbeam.The tray (23) that is positioned at needle roller plate and backing plate below is provided with groove with the cooresponding face of chock, and cooresponding chock face is provided with boss, be respectively equipped with guide groove and guide pillar (24) on chock (6) and the base plate cooresponding (10), and the chock seat (7) that is connected with chock (6) bottom is provided with a square hole that is used to be connected push rod (18) with it.Four orienting sleeves (12) are connected to the upper and lower of brake equipment, and the guide hole on it vertically connects.Its top captive joint of main tie (13) that is connected the crossbeam middle part is useful on the U type link span (14) that binds hoisting cable, the bottom is fixedly connected with T type supporting plate (15), spring (22) is sleeved on the main tie (13) between supporting plate and crossbeam, and the crossbeam bottom that is positioned at main tie (13) both sides is connected with two baffle plates (17).One end of two connecting panels (16) is connected to the both sides of supporting plate (15), the other end is connected with an end of push rod (18), the other end of push rod (18) places in the square hole on the chock seat (7), and push rod (18) supports by fulcrum (19) apart from chock seat (7) 1/3 place's fulcrums.Fulcrum (19) is installed on the support plate (20) that is fixedly connected on the support (11).Crossbeam (1) middle part is symmetrically installed with two boatswain chairs (21), and the boatswain chair bottom is provided with porose, is used to connect cage.

Falling protector is when normally moving with cage, main tie (13) is up, T type supporting plate (15) contacts with baffle plate (17), spring (22) is compressed between crossbeam and the T type supporting plate, T type supporting plate will be stirred chock seat (7) downwards by connecting panel (16), push rod (18) makes chock (6) come downwards to position, the end, at this moment, chock with decide the block gap maximum, winding cage and falling protector will be along with the upper and lower operations of the check band that places pilot hole and grooving.

When the disconnected rope of hoisting cable, the spring that is compressed between crossbeam and the T type supporting plate opens suddenly because of losing pressure, main tie and T type supporting plate are descending, and stir chock (6) by connecting panel, push rod and upwards move along projected path, near deciding piece (8) and check band is clipped in chock tightly and decides between two V-slots of piece (8), stop falling until the impulsive force of braking force greater than falling object to the up increasing braking force with chock from producing braking force, falling protector is finished whole buffer-braking process.

Claims

1, a kind of mining falling protector, the middle part of crossbeam (1) is connected with the boatswain chair (21) that is used to hang cage, main tie (13) places in the hole at crossbeam (1) middle part, the top of main tie is connected with and is used to bind the link span (14) that promotes steel cable, the two ends of crossbeam (1) are connected with brake equipment, the bottom that it is characterized in that main tie (13) is connected with a supporting plate (15), the two ends of supporting plate are symmetrically connected with connecting panel (16), and, two connecting panels are connected by the interior chock seat (7) of a push rod (18) and crossbeam two end braking devices respectively, and the strong point between the push rod two ends is supported by the fulcrum (19) that is arranged on the support plate (20), be positioned on the main tie (13) between crossbeam (1) and supporting plate (15) and be socketed with a spring (22), be arranged in the brake equipment at crossbeam two ends, and chock seat (7) bonded assembly chock (6) is positioned at and is fixed on deciding between piece (8) and the voussoir (3) on the base plate (10), to have a straight flange of grooving adjacent with deciding piece for the straight flange that chock has a grooving, and be provided with needle roller plate (5) and backing plate (4) between chock hypotenuse and voussoir hypotenuse, and chock is provided with a guide groove or guide pillar (24), be provided with guide pillar or guide groove with this guide groove or the cooresponding base plate of guide pillar (10) or cover plate (2), and the below of needle roller plate (5) and backing plate (4) is fixedly connected with a tray (23), tray and with the cooresponding wedge surface of tray on be respectively arranged with groove and can place projection in the groove, on brake equipment, the below is respectively arranged with corresponding orienting sleeve (12), and orienting sleeve is provided with the pilot hole of vertical perforation.

2, mining falling protector according to claim 1 is characterized in that voussoir (3), chock (6), decides piece (8) plane and parallel with the crossbeam axis, and chock, the grooving decided on the piece are V-slot, and the angle on chock inclined-plane is 5 ° to 10 °.