CN212927925U

CN212927925U - Heavy hammer type air door locking device

Info

Publication number: CN212927925U
Application number: CN202021059225.1U
Authority: CN
Inventors: 李广成; 赵喜红; 王海蛟; 白洁
Original assignee: Jinneng Holding Coal Group Co Ltd
Current assignee: Jinneng Holding Coal Group Co Ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-04-09
Anticipated expiration: 2030-06-10

Abstract

The utility model relates to the field of coal mine equipment, in particular to a heavy hammer type air door locking device; a heavy hammer locking limiter and a steel wire rope guide pulley block which are arranged in a roadway between two air doors; the two air doors are respectively a first air door and a second air door; the heavy hammer locking limiter comprises two outer pipes which are connected together through a connecting bottom plate, wherein the two outer pipes are internally sleeved with a counterweight inner pipe with the height lower than that of the outer pipes, and a limiting hammer is hinged to the bottom plate between the two outer pipes; the steel wire rope guide pulley block comprises three groups of guide pulleys, two movable pulleys, a first steel wire rope, a second steel wire rope and two third steel wire ropes which are fixed on a tunnel top plate, the device has a self-locking effect, has no requirements on the shape, type, position and the like of an air door, and has extremely wide applicability; adopt the utility model discloses locking device, the shutting is effectual, maintain that the installation is simple, safe durable fault rate is low, guarantees ventilation system's reliable and stable.

Description

Heavy hammer type air door locking device

Technical Field

The utility model relates to an equipment field for the colliery, concretely relates to weight formula air door blocking device.

Background

Colliery air door blocking device generally adopts wire rope to establish ties, reaches air door shutting effect through wire rope length, because wire rope exists the elastic deformation effect that tensile arouses, and the back is opened to one side air door, and another air door can also open 0.5 meters distance, and air door shutting effect is not good, and wire rope is in the lax tenesmus state when the air door closed condition, influences the personnel and equipment safety through the air door.

Disclosure of Invention

The utility model discloses gram provides a heavy hammer type air door blocking device for solving the relatively poor technical problem of current air door blocking device shutting effect.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: a heavy hammer type air door locking device is characterized in that a heavy hammer locking limiter and a steel wire rope guide pulley block are arranged in a roadway between two air doors; the two air doors are respectively a first air door and a second air door; the heavy hammer locking limiter comprises two outer pipes which are connected together through a connecting bottom plate, wherein two balance weight inner pipes with the height lower than that of the outer pipes are sleeved in the two outer pipes respectively and respectively comprise a first balance weight inner pipe and a second balance weight inner pipe, a limiting hammer is hinged to the bottom plate between the two outer pipes, the limiting hammer comprises a limiting block and a rotating rod, one end of the rotating rod is fixedly connected with the limiting block, the other end of the rotating rod is hinged to the bottom plate, the widest position of the limiting block of the limiting hammer is 1.5 parts of the distance between the two balance weight inner pipes, and the limiting block is positioned above the top; the top parts of the two counterweight inner pipes are fixedly connected with a hook, and the sum of the heights of the hook and the counterweight inner pipes is less than or equal to the height of the outer pipe; the steel wire rope guide pulley block comprises three groups of guide pulleys, two movable pulleys, a first steel wire rope, a second steel wire rope and two third steel wire ropes, wherein the three groups of guide pulleys are a first guide pulley block which guides a vertical steel wire rope connected with the fastener to a horizontal direction, and a second guide pulley block which guides the steel wire rope passing through the first guide pulley block to air door directions at two sides; the third guide pulley block is used for guiding the air door, namely the steel wire rope connected with the first air door, which faces one side of the heavy hammer locking limiting stopper in the opening direction; the third steel wire rope is sleeved with a movable pulley, two ends of the third steel wire rope are respectively connected with two doors of the air door, one end of the first steel wire rope is connected with a hook adjacent to the first air door, the other end of the first steel wire rope is fixed with the movable pulley adjacent to the first air door after passing through the three groups of guide pulleys, one end of the second steel wire rope is connected with a hook adjacent to the second air door, and the other end of the second steel wire rope is fixed with the movable pulley adjacent to the second air door after passing through the first guide pulley block and the second guide pulley.

The working principle and the process are as follows: when the anchor rod is used, the bottom plate and the outer pipe are welded together, and a hole of 30mm is drilled so as to be conveniently fixed on the ground of the roadway through the anchor rod. When first air door is opened, drive rather than adjacent wire rope and pulley interlock by first air door, mention first counter weight inner tube, with spacing hammer inclined to one side to second counter weight inner tube top when first counter weight inner tube is lifted, second counter weight inner tube is blocked by spacing hammer under the first counter weight inner tube effort, can't open the second air door to this realizes that the air door is chain.

The counterweight type air door locking device adopts two independent counterweight inner pipes to be respectively connected with two air doors through a steel wire rope and a pulley, the two counterweight inner pipes are inserted into the outer pipe simultaneously, the lifting of the two counterweight inner pipes is controlled through a limiting device arranged on the outer pipe, the effect that one counterweight inner pipe is automatically clamped to the other counterweight inner pipe when lifted is achieved, and the specific size is changed according to the different distances between the two outer pipes of the locking device.

Compared with the prior art the utility model discloses following beneficial effect has:

1. after the novel heavy hammer type air door locking device is adopted, the opening degree of one air door can be reduced to be below 0.1m from 0.5m when the other air door is opened, and a better locking effect is achieved.

2. The manufacturing materials are all original 3-inch steel pipes and 4-inch steel pipes of the mine, and the manufacturing cost is low.

3. The acting force of the locking device on the air door is completely from the gravity of the heavy hammer, the locking device is purely mechanical, and the locking device is safe, durable and small in failure rate.

4. The installation, maintain simply, when the air door damages and needs the maintenance, only need to propose two inner tubes, the air door shutting became invalid, after the maintenance finishes, with two inner tubes put back corresponding position can.

5. After the weight type locking device is adopted, the steel wire ropes connected with the air door are in a tightened state, and the condition that the steel wire ropes fall down to endanger passing pedestrians is avoided.

6. The locking device has firm structure and can be conveniently reused.

Drawings

Fig. 1 is a schematic structural view of the heavy hammer type air door locking device of the present invention.

Fig. 2 is a top view of the heavy hammer type air door locking device of the present invention.

The figures are labeled as follows:

1-connecting bottom plate, 2-outer pipe, 3-first balance weight inner pipe, 4-second balance weight inner pipe, 5-limiting hammer, 6-hook, 7-guide pulley, 8-movable pulley, 9-first steel wire rope, 10-second steel wire rope, 11-third steel wire rope, 12-first air door, and 13-second air door.

Detailed Description

The present invention will be further described with reference to the following specific examples.

Example 1

As shown in fig. 1 and 2, a heavy hammer type air door locking device, a heavy hammer locking stopper and a steel wire rope guide pulley block are arranged in a roadway between two air doors; the two air doors are respectively a first air door 12 and a second air door 13; the heavy hammer locking limiter comprises two outer pipes 2 which are connected together through a connecting bottom plate 1, wherein the height of each outer pipe 2 is determined by the specific height of an underground roadway, and the height of the roadway is generally half of the height of the roadway. When the roadway is too high, the width of the single air door is equal to or slightly larger than that of the single air door. The bottom plate and the outer pipe are welded together, and a 30mm hole is drilled to facilitate the fixation on the ground through an anchor rod. The two outer pipes 2 are internally sleeved with counterweight inner pipes with the height lower than that of the outer pipes 2, namely a first counterweight inner pipe 3 and a second counterweight inner pipe 4 respectively, a limiting hammer 5 is hinged on the bottom plate 1 between the two outer pipes 2, the limiting hammer 5 comprises a limiting block and a rotating rod, one end of the rotating rod is fixedly connected with the limiting block, the other end of the rotating rod is hinged with the bottom plate 1, the widest part of the limiting block of the limiting hammer 5 is 1.5 parts of the distance between the two counterweight inner pipes, and the limiting block is positioned above the top of the outer pipe 2; the top parts of the two counterweight inner pipes are fixedly connected with a hook 6, and the sum of the heights of the hook 6 and the counterweight inner pipes is less than or equal to the height of the outer pipe 2, so that the rope clamp and the limiter are prevented from being clamped; the steel wire rope guide pulley block comprises three groups of guide pulleys 7 fixed on a top plate of the roadway, two movable pulleys 8, a first steel wire rope 9, a second steel wire rope 10 and two third steel wire ropes 11, wherein the three groups of guide pulleys 7 are respectively a first guide pulley block for guiding a vertical steel wire rope connected with the fastener into a horizontal direction, and a second guide pulley block for guiding the steel wire rope passing through the first guide pulley block into air door directions on two sides; a third guide pulley block for guiding the air door with the opening direction facing to one side of the heavy hammer locking limiter, namely the steel wire rope connected with the first air door 12 (the opening direction of the first air door 12 faces to the heavy hammer locking limiter, and the opening direction of the second air door 13 faces to one side far away from the heavy hammer locking limiter); the third steel wire rope 11 is sleeved with the movable pulley 8, two ends of the third steel wire rope are respectively connected with the two doors of the air door, the movable pulley 8 is used for ensuring that the guide wheel fixes the steel wire rope at the middle position of the two doors, the acting force of the locking device on the air door is reduced, the air door is convenient to open, and the control effect on the two doors of one air door is achieved. One end of a first steel wire rope 9 is connected with the hook 6 adjacent to the first air door 12, the other end of the first steel wire rope passes through the three groups of guide pulleys 7 and then is fixed with the movable pulley 8 adjacent to the first air door 12, one end of a second steel wire rope 10 is connected with the hook 6 adjacent to the second air door 13, and the other end of the second steel wire rope passes through the first guide pulley block and the second guide pulley block and then is fixed with the movable pulley 8 adjacent to the second air door 13.

Furthermore, the limiting block is a semicircular block or a fan-shaped block, the height of the limiting hammer 5 can be calculated according to specific manufacturing conditions in the manufacturing process, and the limiting hammer can completely clamp the counterweight inner pipe after falling down to one side.

Furthermore, the two outer tubes 2 are connected by two parallel horizontally arranged connecting bottom plates 1.

Further, the outer pipe 2 is made of a four-inch steel pipe; the inner pipe is made of a 3-inch steel pipe, end plates are welded at two ends of the inner pipe, and sand, cement or anchor rods are filled in the inner pipe for balancing weight; the connecting bottom plate 1 is made of a 5mm steel plate; the limiting hammer 5 is formed by cutting a 10mm steel plate.

Further, the weight of the limiting hammer 5 is 25 kg. Therefore, the opening easiness of the air door can be ensured, and the steel wire rope can be tightened to reduce the elastic deformation of the steel wire rope.

Further, the third wire rope 11 is connected with the center position of the air door. For reducing the effort of counter weight inner tube to the air door, wire rope and air door hookup location design are at the air door middle part, adopt two movable pulleys to reach the effect that reduces the effort simultaneously.

The locking device is mainly installed in a roadway between two air doors and can be fixed on any one side of the roadway, the movable pulleys used in installation are V-shaped rope grooves, and the diameter of the movable pulleys is 10cm so as to reduce the friction force of the pulley set on a steel wire rope and prevent the condition that the pulleys clamp the rope. The transverse rope is connected with the air door, the longer the transverse rope is, the better the transverse rope is, about 6 meters is generally taken, so that the transverse rope is convenient and labor-saving, and meanwhile, when the two air doors are opened to the maximum, the acting force of the steel wire rope on the air door is small.

1. The mine generally adopts wooden air door, and the air door warp easily in the air door use, because the air door warp probably leads to blocking device inefficacy or mistake lock when using pneumatic shutting or electron shutting, the utility model discloses a pure mechanical type shutting, safe durable fault rate is little. 2. The utility model discloses make original wire rope blocking device obtain reuse in the at utmost to reach control cost's effect. 3. The position of blocking device installation is generally in the return air and flows, and the poor humidity of environment is big, the utility model discloses the reliability in the use has been guaranteed to the blocking device. 4. The air door size and dimension of mine installation probably all is different, and the tunnel height that every air door of group was located, the distance between the air door is also different, requires blocking device to have good suitability, by the utility model discloses a blocking device's principle can know, and the device is from becoming the blocking effect, all does not have the requirement to shape, type, position etc. of air door, and the suitability is extremely wide. By adopting the heavy hammer locking device, the locking effect is good, the maintenance and installation are simple, the safety and durability are realized, the failure rate is low, and the stability and the reliability of a ventilation system are ensured.

Claims

1. The utility model provides a weight formula air door blocking device which characterized in that: a heavy hammer locking limiter and a steel wire rope guide pulley block which are arranged in a roadway between two air doors; the two air doors are respectively a first air door (12) and a second air door (13); the heavy hammer locking limiter comprises two outer pipes (2) connected together through a connecting bottom plate (1), wherein two balance weight inner pipes with the height lower than that of the outer pipes (2) are sleeved in the two outer pipes (2) respectively and respectively comprise a first balance weight inner pipe (3) and a second balance weight inner pipe (4), a limiting hammer (5) is hinged on the bottom plate (1) between the two outer pipes (2), the limiting hammer (5) comprises a limiting block and a rotating rod, one end of the rotating rod is fixedly connected with the limiting block, the other end of the rotating rod is hinged with the bottom plate (1), the widest position of the limiting block of the limiting hammer (5) is 1.5 parts of the distance between the two balance weight inner pipes, and the limiting block is positioned above the top of the outer pipes (2; the top parts of the two counterweight inner pipes are fixedly connected with a hook (6), and the sum of the heights of the hook (6) and the counterweight inner pipes is less than or equal to the height of the outer pipe (2); the steel wire rope guide pulley block comprises three groups of guide pulleys (7), two movable pulleys (8), a first steel wire rope (9), a second steel wire rope (10) and two third steel wire ropes (11), wherein the three groups of guide pulleys (7) are fixed on a top plate of the roadway, the three groups of guide pulleys are respectively a first guide pulley block for guiding a vertical steel wire rope connected with the fastener into a horizontal direction, and the steel wire rope passing through the first guide pulley block is guided into second guide pulley blocks in the directions of air doors at two sides; the third guide pulley block guides the air door, namely the first air door (12), which is arranged at one side of the heavy hammer locking limiter in the opening direction, to a steel wire rope; the movable pulley (8) is sleeved on the third steel wire rope (11), two ends of the third steel wire rope are connected with two doors of the air door respectively, one end of the first steel wire rope (9) is connected with the hook (6) adjacent to the first air door (12), the other end of the third steel wire rope is fixed with the movable pulley (8) adjacent to the first air door (12) after passing through the three groups of guide pulleys (7), one end of the second steel wire rope (10) is connected with the hook (6) adjacent to the second air door (13), and the other end of the third steel wire rope is fixed with the movable pulley (8) adjacent to the second air door (13) after passing through the first guide pulley block and the second guide pulley block.

2. The weighted damper latch of claim 1, wherein: the limiting block is a semicircular block or a fan-shaped block.

3. The weighted damper latch of claim 1, wherein: the two outer pipes (2) are connected through two parallel connecting bottom plates (1) which are horizontally arranged.

4. A weighted damper lockout device according to any one of claims 1-3 wherein: the outer pipe (2) is made of a four-inch steel pipe; the inner pipe is made of a 3-inch steel pipe, end plates are welded at two ends of the inner pipe, and sand, cement or anchor rods are filled in the inner pipe for balancing weight; the connecting bottom plate (1) is made of a 5mm steel plate; the limiting hammer (5) is formed by cutting a 10mm steel plate.

5. A weighted damper lockout device according to any one of claims 1-3 wherein: the weight of the limiting hammer (5) is 25 kg.

6. The weighted damper latch according to claim 5, wherein: and the third steel wire rope (11) is connected with the center of the air door.