CN218151022U

CN218151022U - Mining air door opening and closing control device with mechanical self-locking function

Info

Publication number: CN218151022U
Application number: CN202222328895.4U
Authority: CN
Inventors: 刘滕; 潘凯; 殷庆龙; 王建峰; 卢斌
Original assignee: Youluoka Shandong Mining Industry Technology Co ltd
Current assignee: Youluoka Shandong Mining Industry Technology Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-12-27
Anticipated expiration: 2032-09-02

Abstract

The utility model relates to a take mining air door switching control device of mechanical self-locking function, wire rope pass through the cylinder hub connection of self-locking mechanism and actuating cylinder, and self-locking mechanism includes channel-section steel slide, locking slider and is located the rotatory couple of locking slider top, and the locking slider is connected with wire rope, the rear end of rotatory couple and the articulated front end downwardly extending of rotatory couple of channel-section steel slide have the hitch plate, are equipped with the locking cardboard on the locking slider, still including the unblock slider of connection at cylinder axle front end, and the unblock slider passes through the slider round pin axle and is connected with the locking slider, and rotatory couple lower extreme rigid coupling has the gib head roof, and the antedisplacement of unblock slider upwards jack-up rotatory couple, when air supply pressure undersize, the air door can't continue to open and when having the antiport trend, relies on self-locking mechanism to fix the cylinder axle in the current situation position, effectively prevent that the air door antiport from causing personnel and locomotive collision, when the air supply resumes normally, after the cylinder can normally work, self-locking function can be relieved, makes the system normally work.

Description

Mining air door opening and closing control device with mechanical self-locking function

Technical Field

The utility model relates to a mining air door field specifically indicates a take mining air door switching control device of mechanical self-locking function.

Background

The air door is an important structure in a mine ventilation system, separates wind flow, creates conditions for distributing the wind flow of the mine according to needs, provides convenience for pedestrians and transportation, and is used as an important component of the mine ventilation system, and the air door mainly plays a role in: (1) and enough fresh air is supplied to the underground to meet the requirement of personnel on oxygen. (2) Dilute the poisonous and harmful gas and dust in the well and ensure the safe production. (3) The underground climate is adjusted, and a good working environment is created.

The ventilation system of the mine consists of a ventilator and a ventilation network, and air flow enters the mine from an air inlet well head, passes through various underground air fields, then enters an air return well, and is discharged out of the mine from the air return well. Therefore, the air door has to meet the following basic requirements of (1) labor saving, convenience and safety in opening during design and construction. (2) Can be automatically closed. (3) All parts are tightly sealed and do not leak air. (4) Each group of air doors is not less than two, and is provided with a locking device, and the air doors cannot be opened simultaneously, namely when one door is opened, the air door on the other side is in a closed state.

In the actual operation in-process at the air door, how to guarantee safety, it is the key of weighing a set of air door switching control system reliably, at first, because the negative pressure is big in the pit, the resistance is big when causing the opening air door, it is fast when closing, inertia is big, there is not reliable mechanical blocking device or blocking device, very easily cause the air door to bump the car, the emergence of incident such as bumping the people, secondly, the air door is installed in mine haulage roadway, the pedestrian passes through and transportation equipment current frequency is great, and along with the intelligent development of coal mine equipment, a lot of transportation equipment are like monorail locomotive hangs etc., now all adopt unmanned remote control driving, transportation, consequently, how to guarantee the switching that the air door can be safe improves air door switching self-lock device's reliability promptly, higher requirement has been proposed, also be the technological key point that needs optimizing and solving in present mining air door safety switching research field urgent need.

The existing mining air door control system enables the air cylinder to stretch out or withdraw and pull the steel wire rope by changing the direction of the air circuit, so that the opening and closing of the air door are realized, the mode is mechanical control and is simple to operate, but when the air pressure of an air source is too low, the straight-going pulling force of an air cylinder shaft is smaller than the wind power of a roadway, the air door cannot be completely opened in place, and even the risk of collision between the air door and pedestrians and locomotives in the opposite direction is caused, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a take mining air door switching control device of mechanical self-locking function.

The utility model discloses a through following technical scheme realize, provide a take mechanical self-locking function's mining air door switching controlling means, including actuating cylinder and wire rope, wire rope passes through the cylinder hub connection of self-locking mechanism and actuating cylinder, self-locking mechanism includes fixed channel-section steel slide, slides along the flexible direction of actuating cylinder and sets up the locking slider in the channel-section steel slide and be located the swivel hook of locking slider top, the locking slider is connected with wire rope, swivel hook's rear end and the articulated front end downwardly extending who just swivels couple of channel-section steel slide have the hitch plate, be equipped with the locking cardboard with the gib head board adaptation on the locking slider, self-locking mechanism is still including the unblock slider of connection at cylinder axle front end, the unblock slider passes through the slider round pin axle and is connected just the slider on the locking slider and passes through the slot hole that the hole extended for the front and back, the lower extreme rigid coupling of swivel hook has the gib head roof, gib head roof rear end is equipped with the inclined plane that makes the swivel hook jack up after holding the unblock slider and move forward.

Cylinder in this scheme is retrieved backward to make the air door be in the open mode, at this moment, if the cylinder air supply reduces atmospheric pressure, the cylinder pulling force is less than tunnel wind-force, wire rope can be through drawing the locking slider along channel-section steel slide linear motion trend, when locking cardboard on the locking slider contacts with rotatory couple, rotatory couple can block the trend that the locking slider continues the sharp operation under the action of gravity, at this moment, the cylinder axle just also no longer continues forward and stretches out, the air door just stops in the current situation position, can not collide.

If need close the air door, the cylinder axle can promote the unblock slider at first and move ahead, and the unblock slider can jack up rotatory couple at first, makes rotatory couple and the locking cardboard of locking slider not have the interference in the direction of motion, then promotes the locking slider and moves ahead along the channel-section steel slide again, and then makes the air door close under the counter weight effect, and self-locking mechanism realizes opening and closing of air door under the prerequisite of guaranteeing safety.

Preferably, a backspacing inclined plate which inclines downwards is arranged at the rear end of the unlocking slide block. The backspacing inclined plate in the scheme is used for jacking the rotating hook when the unlocking slide block moves backwards in the air door opening process.

Preferably, the stopping slide block is provided with a steel wire rope connecting shaft, and the steel wire rope is connected with the steel wire rope connecting shaft. The steel wire rope in the scheme is connected with the locking sliding block through the steel wire rope connecting shaft.

Preferably, the number of the slide block pin shafts is two, and the slide block pin shaft at the rear part is connected with the cylinder shaft. Thereby slider round pin axle in this scheme is equipped with two and prevents to rotate relatively between unblock slider and the locking slider.

Preferably, the execution cylinder is fixed on the cylinder fixing seat, and the cylinder fixing seat and the channel steel slide are both supported by the fixing support. The fixed bolster in this scheme supports cylinder fixing base and channel-section steel slide.

Preferably, the channel steel slideway is a channel steel with an upper opening, and the rear end of the rotary hook is hinged to two vertical plates of the channel steel through a hook pin shaft respectively. The rear end of the rotary hook in the scheme is hinged with the two vertical plates of the channel steel through the hook pin shaft respectively, so that firm connection is realized.

Preferably, the hook head top plate is fixedly connected to the rear end face of the hook head plate, and the hook head top plate and the stopping clamping plate are arranged in a left-right staggered mode. The hook head top plate in the scheme is fixedly connected with the rear end face of the hook head plate, so that the hook head plate is firmly connected with the rotating hook body.

The utility model has the advantages that: the utility model discloses a take mechanical self-locking function's mining air door switching control device, wire rope pass through the cylinder hub connection of self-locking mechanism and actuating cylinder, and when taking place air supply pressure undersize, the air door can't continue to open and when having the antiport trend, relies on self-locking mechanism, fixes the cylinder axle in the current situation position, can prevent effectively that the air door antiport from causing personnel and locomotive collision, and is normal when the air supply resumes, and the cylinder can normally work the back, and self-locking function can relieve, makes the system normally work.

The self-locking mechanism is mechanically self-locked, has no electric control system, is reliable and stable in mechanical self-locking, is simple to operate, can be released after the air pressure is recovered to be normal and the air cylinder can normally work, and is simple and flexible to operate.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the self-locking mechanism of the present invention;

fig. 3 is a front view of the self-locking mechanism of the present invention;

fig. 4 is a schematic structural view of the self-locking mechanism without a channel steel slideway of the present invention;

fig. 5 is a front view of the self-locking mechanism without a channel steel slideway of the present invention;

FIG. 6 is a schematic structural view of the self-locking mechanism of the present invention without a channel steel slideway and a rotary hook;

FIG. 7 is a schematic view of a prior art damper opening and closing control device;

shown in the figure:

1. the device comprises an execution cylinder, 2, a cylinder fixing seat, 3, a fixing support, 4, a cylinder shaft, 5, a rotary hook, 6, an unlocking slide block, 7, a locking slide block, 8, a channel steel slide rail, 9, a steel wire rope, 10, a hook pin shaft, 11, a hook head plate, 12, a hook head top plate, 13, a locking clamping plate, 14, a backspacing inclined plate, 15, a slide block pin shaft, 16 and a steel wire rope connecting shaft.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in fig. 1 to 7, the utility model discloses a take mining air door switching control device of mechanical self-locking function, including actuating cylinder 1 and wire rope 9, actuating cylinder 1 stretches out and draws back and drives wire rope 9 and realize the switching of air door, and actuating cylinder 1's cylinder axle 4 is withdrawed the state and is the air door state of opening promptly, and actuating cylinder 1's cylinder axle 4 stretches out, then the air door closes under the counter weight effect, the utility model provides a direction that actuating cylinder 1 stretches out is pointed to in the place ahead.

The steel wire rope 9 is connected with a cylinder shaft 4 of the execution cylinder 1 through a self-locking mechanism, the self-locking mechanism comprises a fixed channel steel slide rail 8, a stop slide block 7 arranged in the channel steel slide rail 8 in a sliding mode along the telescopic direction of the execution cylinder 1 and a rotary hook 5 located above the stop slide block 7, the channel steel slide rail 8 is a channel steel with an upper opening, the channel steel is coaxial with the execution cylinder 1, the execution cylinder 1 is fixed on a cylinder fixing seat 2, the cylinder fixing seat 2 and the channel steel slide rail 8 are both supported through a fixing support 3, and meanwhile, the lower end, close to the channel steel slide rail 8, of the cylinder fixing seat 2 is connected with the fixing support 3 below the channel steel slide rail 8 through a bolt after being bent downwards, so that the execution cylinder 1 and the channel steel slide rail 8 are fixed into a whole.

The stopping slider 7 is connected with a steel wire rope 9, in this embodiment, a steel wire rope connecting shaft 16 is installed on the stopping slider 7, the steel wire rope connecting shaft 16 is located at the front end of the stopping slider 7, and the steel wire rope 9 is connected with the steel wire rope connecting shaft 16.

Rotatory couple 5's rear end and channel-section steel slide 8 are articulated and rotatory couple 5's front end downwardly extending has hook plate 11, and rotatory couple 5's rear end is articulated with two risers of channel-section steel through couple round pin axle 10 respectively in this embodiment, and the articulated shaft extends about to make the front end of rotatory couple 5 can the luffing motion, the vertical setting of hook plate 11.

The locking slide block 7 is provided with a locking clamping plate 13 matched with the hook head plate 11, the front end of the locking clamping plate 13 is vertically arranged, the top surface of the locking clamping plate 13 is arranged in a downward inclined mode from front to back, after the execution cylinder 1 contracts in place, the locking clamping plate 13 moves back to the back of the hook head plate 11, after the rotating hook 5 swings downwards in place, the lower end of the hook head plate 11 is lower than the upper end of the locking clamping plate 13, and therefore the locking clamping plate 13 is prevented from moving forwards.

The self-locking mechanism further comprises an unlocking slide block 6 connected to the front end of the air cylinder shaft 4, the unlocking slide block 6 is connected with the locking slide block 7 through a slide block pin shaft 15, the slide block pin shaft 15 on the locking slide block 7 penetrates through a long hole extending forwards and backwards, the slide block pin shafts 15 in the embodiment are arranged in two and arranged forwards and backwards, the slide block pin shaft 15 at the rear part is connected with the air cylinder shaft 4, and the two slide block pin shafts 15 are arranged in the same slide block pin shaft 15 penetrating hole.

The lower end of the rotating hook 5 is fixedly connected with a hook head top plate 12, the hook head top plate 12 is fixedly connected to the rear end face of the hook head plate 11, and the hook head top plate 12 and the locking clamping plate 13 are arranged in a staggered mode in the left-right direction.

The rear end of the hook head top plate 12 is provided with an inclined surface which is used for holding the unlocking slide block 6 and jacking the rotating hook 5 upwards after moving forwards, the hook head top plate 12 in the embodiment is a triangular plate, and the two inclined surfaces are in contact with the unlocking slide block 6.

The rear end of the unlocking slider 6 is provided with a downward-inclined backspacing inclined plate 14, and when the air door is opened, the backspacing inclined plate 14 pushes the rotating hook 5 open.

The utility model discloses a use method:

fig. 2 shows that the cylinder shaft withdraws the state and the air door state of opening promptly, this moment, if the cylinder air supply reduces atmospheric pressure, the cylinder pulling force is less than tunnel wind-force, wire rope 9 can be through drawing locking slider 7 along 8 rectilinear motion trends of channel-section steel slide, when locking cardboard 13 on locking slider 7 contacts with swivel hook 5, swivel hook 5 is under the action of gravity, can block the trend that locking slider 7 continues rectilinear motion, this moment, cylinder shaft 4 also no longer continues forward to stretch out, the air door just stops in the present situation position, can not collide.

If need close the air door, cylinder shaft 4 can rely on slider round pin axle 15 at first to promote unblock slider 6 to go ahead, unblock slider 6 can at first jack-up swivel hook 5, makes swivel hook 5 and locking cardboard 13 of locking slider 7 not have the interference in the direction of motion, then promotes locking slider 7 and goes ahead along channel-section steel slide 8 again, and then makes the air door close under the counter weight effect, and self-locking mechanism realizes opening and closing of air door under the prerequisite of guaranteeing safety.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should not depart from the spirit of the present invention, and shall also belong to the protection scope of the claims of the present invention.

Claims

1. The utility model provides a take mining air door switching control device of mechanical self-locking function, includes actuating cylinder (1) and wire rope (9), its characterized in that: the steel wire rope (9) is connected with a cylinder shaft (4) of the execution cylinder (1) through a self-locking mechanism, the self-locking mechanism comprises a fixed channel steel slide way (8), a stop slide block (7) arranged in the channel steel slide way (8) in a sliding mode along the telescopic direction of the execution cylinder (1) and a rotary hook (5) located above the stop slide block (7), the stop slide block (7) is connected with the steel wire rope (9), the rear end of the rotary hook (5) is hinged to the channel steel slide way (8), a hook head plate (11) extends downwards from the front end of the rotary hook (5), a stop clamping plate (13) matched with the hook head plate (11) is arranged on the stop slide block (7), the self-locking mechanism further comprises an unlocking slide block (6) connected to the front end of the cylinder shaft (4), the unlocking slide block (6) is connected with the stop slide block (7) through a slide block pin shaft (15), a slide block pin shaft (15) on the stop slide block (7) penetrates through a long hole extending forwards and backwards, the lower end of the rotary hook head plate (5) is fixedly connected with an unlocking top plate (12), and the unlocking slide block (6) penetrates through the long hole and the inclined plane which enables the rotary hook head to move upwards.

2. The mining air door opening and closing control device with the mechanical self-locking function according to claim 1, characterized in that: the rear end of the unlocking slide block (6) is provided with a downward-inclined backspacing inclined plate (14).

3. The mining air door opening and closing control device with the mechanical self-locking function according to claim 1, characterized in that: the stopping sliding block (7) is provided with a steel wire rope connecting shaft (16), and the steel wire rope (9) is connected with the steel wire rope connecting shaft (16).

4. The mining air door opening and closing control device with the mechanical self-locking function according to claim 1, characterized in that: the number of the slide block pin shafts (15) is two, and the slide block pin shaft (15) at the rear part is connected with the air cylinder shaft (4).

5. The mining air door opening and closing control device with the mechanical self-locking function according to claim 1, characterized in that: the actuating cylinder (1) is fixed on the cylinder fixing seat (2), and the cylinder fixing seat (2) and the channel steel slide (8) are both supported by the fixing support (3).

6. The mining air door opening and closing control device with the mechanical self-locking function according to claim 1, characterized in that: channel-section steel slide (8) are the channel-section steel of upper shed, the rear end of rotatory couple (5) is articulated with two risers of channel-section steel through couple round pin axle (10) respectively.

7. The mining air door opening and closing control device with the mechanical self-locking function according to claim 1, characterized in that: the hook head top plate (12) is fixedly connected to the rear end face of the hook head plate (11), and the hook head top plate (12) and the locking clamping plate (13) are arranged in a left-right staggered mode.