CN209740457U - Middle rope supporting mechanism of cage guide rope - Google Patents
Middle rope supporting mechanism of cage guide rope Download PDFInfo
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- CN209740457U CN209740457U CN201920390192.XU CN201920390192U CN209740457U CN 209740457 U CN209740457 U CN 209740457U CN 201920390192 U CN201920390192 U CN 201920390192U CN 209740457 U CN209740457 U CN 209740457U
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- cage guide
- rope
- steel support
- guide rope
- catching
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Abstract
The utility model discloses a cage guide rope middle part rope supporting mechanism, including arresting pincers (4), inner spring single action cylinder (9), steel support (7) and solenoid valve (11), steel support (7) are fixed on platform roof beam (8), inner spring single action cylinder (9) are fixed on steel support (7), and its cylinder pole (13) left end is equipped with connecting block (5), arresting pincers (4) right-hand member is articulated with connecting block (5) and link mechanism (6) that articulate on steel support (7) respectively through round pin axle (14), solenoid valve (11) are fixed on steel support (7) and are linked together with the preceding jar of inner spring single action cylinder (9). The utility model discloses to solve among the prior art when super deep vertical shaft construction and operation, counter weight or tensile force are too big, cage guide rope footpath under the thick condition, cage guide rope rigidity coefficient still can not reach the problem of regulation, standard requirement.
Description
Technical Field
The utility model relates to a vertical shaft pit shaft construction and operation field specifically are a rope holding mechanism at middle part of cage guide rope.
Background
The deep buried mineral resources such as energy minerals such as coal, metal minerals such as iron, nickel, gold and copper, and nonmetal minerals such as gypsum, salt phosphorus and jade are mostly mined by a well method. The vertical shaft is used as an important channel between the ground and an underground mine field and is one of key projects of mine construction. In China, the one-time construction depth of a vertical shaft which is being built reaches 1600-2000 m. With the increasing of the operation height of the hoisting container, the problems of transverse swing and longitudinal tremble including the hoisting steel wire rope and the cage guide steel wire rope are more prominent, and the problems become important problems influencing the construction and operation safety of the ultra-deep vertical shaft.
The third hundred and ninety-eight rules of coal mine safety (2016 edition) specify: "the minimum rigidity factor of each cage guide rope should not be less than 500N/m, … …" when there are 4 cage guide ropes per lifting container (counter weight), and "the rigidity factor of each cage guide rope should not be less than 1000N/m, … …" when there are 2 cage guide ropes per lifting container (counter weight). The safety code for coal mine construction (AQ 1083 and 2011) stipulates article 6.9.2.9: the minimum rigidity coefficient of each cage guide rope cannot be smaller than 500N/m when the bucket is lifted, and the tension force of 2 cage guide ropes should be equal. Therefore, the maintenance of the rigidity coefficient of the steel wire rope of the cage guide to meet the regulation specification requirement is an important way for guaranteeing the lifting and transportation safety.
From theoretical derivation, the minimum stiffness coefficient of the cage guide rope can be calculated by the following formula:
The position at which the rigidity coefficient of the cage guide rope is the smallest can be calculated by the following formula:
In the formula: kMin is the minimum rigidity coefficient of the steel wire rope of the cage guide; LMin is the position of the minimum rigidity coefficient; g is the counterweight (tension) at the lower end of the steel wire rope; q is the self weight of the steel wire rope per meter; l is the free suspension height of the steel wire rope. As can be seen from equations (1) and (2), the minimum rigidity factor of the cage guide rope is proportional to the weight (tension) and the weight per unit length and inversely proportional to the suspension height, and the position of the minimum rigidity factor is always below the total suspension height 1/2. When the depth of shaft construction or operation increases, in order to guarantee that the minimum rigidity coefficient of cage guide rope can satisfy the requirement, must increase rope end counter weight or tensile force to select for use the wire rope of bigger diameter. However, this approach has significant disadvantages: firstly, when the shaft construction is carried out, the counterweight of the cage guide rope is provided by the weight of the shaft sinking platform and the accessories thereof, and the weight can not be infinitely increased by combining other construction requirements; secondly, the rope end counterweight (tension force) acts on the derrick or the cage guide rope beam, so that the working load of the derrick or the cage guide rope beam is increased, the stability of the structure is not kept, and a suspension vehicle stabilizing or tensioning device with higher capacity is also required; finally, the self weight of the steel wire rope of the cage guide depends on the diameter of the rope, and the diameter of the rope is limited by the rope containing amount of the suspended stable vehicle and the diameter of the head sheave, so that the self weight of the steel wire rope of the cage guide is required to be kept within a reasonable range, and the self weight of the steel wire rope of the cage guide cannot be increased without limit.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies in the prior art, the utility model provides a rope mechanism is held up at cage guide rope middle part to counter weight or tensile force are too big, cage guide rope footpath is crossed thick technical problem in construction of super dark vertical shaft and the operation among the solution prior art.
In order to solve the technical problem, realize the utility model discloses the purpose takes following technical scheme: the utility model provides a rope mechanism is held up at cage guide rope middle part, is including catching pincers, interior spring single action cylinder, steel support and solenoid valve, the steel support is fixed on the platform roof beam, interior spring single action cylinder is fixed on the steel support, and its cylinder pole left end is equipped with the connecting block, the right-hand member of catching pincers is articulated with connecting block and the link mechanism who articulates on the steel support respectively through the round pin axle, the solenoid valve is fixed on the steel support and is linked together with the front cylinder of interior spring single action cylinder.
Furthermore, four pin shaft holes are symmetrically arranged on the upper surface and the lower surface of the right end of the catching pliers respectively, two pairs of the vertically symmetrical pin shaft holes are hinged on the connecting block through a pin shaft, the other two pairs of the pin shaft holes are hinged with one end of the connecting rod mechanism through a pin shaft, and the other end of the connecting rod mechanism is hinged on the steel bracket through a pin shaft.
Furthermore, the clamping surface of the catching clamp is provided with a flexible layer.
further, the flexible layer is a rubber plate, and the rubber plate is fixedly riveted on the clamping surface of the catching pliers.
further, the steel support is a steel structure truss.
Compared with the prior art, the beneficial effects of the utility model are that:
The utility model discloses from reducing the free high start of dangling of cage guide rope, restrict the free swing of cage guide rope through near cage guide rope rigidity coefficient minimum point installation middle part hold up rope mechanism to reach the purpose that improves cage guide rope rigidity coefficient. The catching pliers in the mechanism adopt a four-bar mechanism to increase the opening degree and the catching range of the jaw, and flexible layers such as rubber plates are fixedly riveted on the side of the jaw close to a steel wire rope, namely a clamping surface, so as to prevent the damage to the outer surface of a cage guide rope when the cage guide rope is clamped; the working power of the catching clamp is from an inner spring single-action cylinder fixed on the steel bracket; when the catching pliers do not work, under the action of a spring in the air cylinder, the air cylinder rod extends outwards, and the catching jaw is opened; when the catching pliers work, the electromagnetic control valve is opened by a control signal, compressed air is injected into a front cylinder of the air cylinder to push a piston of the air cylinder to compress the spring, and an air cylinder rod retracts inwards to drive the catching jaw to be closed so as to clamp the cage guide rope. When communication is interrupted, power disappears or the mechanism acts wrongly, the electromagnetic control valve is automatically closed, the air cylinder rod automatically extends out under the action of the spring, the catching jaw is pushed to automatically open and release the cage guide rope, and emergency operation of the lifting container is not influenced. In a word, the utility model discloses not only can hold up the rope through the middle part and shorten the free height that dangles of cage guide rope, and then improve the minimum rigidity coefficient of cage guide rope, the mechanism action is nimble moreover, accurate reliable, does not influence the emergent operation of promotion container during the trouble, makes the security of super deep vertical shaft hoist system improve greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention in an operating state.
Fig. 2 is a schematic structural diagram of the present invention in a non-operating state.
Fig. 3 is a top view of the present invention.
Fig. 4 is a side view of the present invention.
in the figure: 1-hoisting a steel wire rope; 2-a carriage assembly; 3-a cage guide rope; 4-catching pliers; 5, connecting blocks; 6-a linkage mechanism; 7-a steel bracket; 8-a platform beam; 9-inner spring single-acting cylinder; 10-a spring; 11-a solenoid valve; 12-a cylinder piston; 13-a cylinder rod; 14-a pin shaft; 15-flexible layer.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1, 2, 3 and 4, the utility model provides a middle rope supporting mechanism of a cage guide rope, which comprises a catching clamp 4, an inner spring single-acting cylinder 9, a steel bracket 7 and an electromagnetic valve 11, wherein the steel bracket 7 is fixed on a platform beam 8, and preferably, the steel bracket 7 is a steel structure truss; the inner spring single-action cylinder 9 is fixed on the steel support 7, the left end of a cylinder rod 13 of the inner spring single-action cylinder 9 is provided with a connecting block 5, the right end of the catching clamp 4 is hinged with the connecting block 5 and a connecting rod mechanism 6 hinged on the steel support 7 through a pin shaft 14, the upper surface and the lower surface of the right end of the catching clamp 4 are preferably symmetrically provided with four pin shaft holes, two pairs of vertically symmetrical pin shaft holes are hinged on the connecting block 5 through a pin shaft 14, the other two pairs of pin shaft holes are hinged with one end of the connecting rod mechanism 6 through a pin shaft 14, and the other end of the other pair of pin shaft holes is. The catching forceps 4 are hinged with the four-bar mechanism 6 so as to increase the opening degree and the catching range of the jaws; the electromagnetic valve 11 is fixed on the steel bracket 7 and is communicated with the front cylinder of the inner spring single-action air cylinder 9.
In order to prevent the outer surface of the steel wire rope from being damaged when the steel wire rope is clamped, flexible layers 15 such as rubber plates are fixedly riveted on the clamping surface (the side of the jaw close to the steel wire rope) of the catching clamp 4.
The mechanism is manufactured by processing steel plates and section steel, and is connected and fixed with a corresponding platform by adopting a steel structure truss in order to ensure the integral rigidity. The platform on which the mechanism is mounted can be arranged at a water transfer station, a ingate opening and the like during shaft sinking; during production and operation, the lifting device can also be arranged at the middle horse door pocket frame lifted in sections. In order to ensure that the swing of the cage guide rope is always in a controllable state, more than 2 rope supporting mechanisms can be arranged, and the distance is selected according to factors such as the property of a platform, the maximum rope speed of a hoist, the total height of a hook head device, the type of a hoisting container and the like. The utility model discloses the preferred setting adopts 2 rope holding mechanisms at a distance of 25 meters from top to bottom at commentaries on classics water station platform.
The working power of the catching clamp 4 of the mechanism is from an inner spring single-action cylinder 9 fixed on a steel bracket 7. When the catching clamp does not work, under the action of a spring 10 in the air cylinder, an air cylinder rod 13 extends outwards, a mouth of the catching clamp 4 is opened, and at the moment, the distance between the most protruding part of the mechanism and a lifting container is more than 350 mm; when the catching clamp 4 works, the electromagnetic valve 11 is opened by a control signal, compressed air is injected into one side of the air cylinder to push the air cylinder piston 12 to compress the spring 10, the air cylinder rod 13 retracts inwards to drive the catching clamp 4 to close, and the cage guide rope 3 is clamped, so that the free suspension height of the cage guide rope 3 is reduced, and the minimum rigidity coefficient of the cage guide rope 3 is improved.
the working principle is as follows:
The control signal for the mechanism is taken from the depth indicator of the hoist; when the mechanism works, the electromagnetic valve 11 is opened, compressed air is filled into a front cylinder of the inward spring single-action air cylinder 9, pressure acts on an air cylinder piston 12, the piston 12 is pushed to compress the spring 10, an air cylinder rod 13 is retracted, the catching clamp 4 is driven to close and clamp the cage guide rope 3, and the functions of limiting the free swing of the cage guide rope 3 and improving the rigidity coefficient of the cage guide rope 3 are achieved. When the bucket runs to a position 15 meters away from the mechanism, the depth indicator sends an action signal, the electromagnetic valve 11 is closed, the air return pipe of the front cylinder of the internal spring single-action air cylinder 9 is communicated with air to release compressed air, the piston 12 of the air cylinder extends outwards under the thrust action of the spring 10, the opening of the catching clamp 4 opens the release cage guide rope 3, and the sliding frame is guaranteed to pass through smoothly. When the sliding frame leaves the catching clamp for about 4 meters, the depth finger device sends out an action signal again, and the mechanism repeats the process, wherein the jaw closes the holding rope. Because 2 rope supporting mechanisms act in sequence, when the lifting container runs, the cage guide rope 3 is always clamped by one rope supporting mechanism, so that the stable running of the lifting container is guaranteed, and the cage guide rope 3 can be accurately captured by the capturing clamp 4. When the running directions of the hoister are different, the opening and closing sequence of the 2 mechanisms is opposite. The mechanism is provided with a motion sensor, when the mechanism does not normally act, the electromagnetic valve 11 is automatically closed, and the mouth of the catching clamp 4 is opened to prevent scraping. When the system is powered off, communication is interrupted or power is lost, the electromagnetic valve 11 is also in an automatic closing state, and the catching clamp is in an opening state under the action of the spring 10 in the air cylinder to allow the lifting container to pass through in an emergency. The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides a cage guide rope middle part holds up rope mechanism which characterized in that: the catching clamp comprises catching clamps (4), an inner spring single-action cylinder (9), a steel support (7) and an electromagnetic valve (11), wherein the steel support (7) is fixed on a platform beam (8), the inner spring single-action cylinder (9) is fixed on the steel support (7), a connecting block (5) is arranged at the left end of a cylinder rod (13), the right end of the catching clamps (4) is hinged to the connecting block (5) and a connecting rod mechanism (6) hinged to the steel support (7) through a pin shaft (14), and the electromagnetic valve (11) is fixed on the steel support (7) and communicated with a front cylinder of the inner spring single-action cylinder (9).
2. The middle rope supporting mechanism of the cage guide rope according to claim 1, characterized in that: four pin shaft holes are symmetrically arranged on the upper surface and the lower surface of the right end of the catching clamp (4) respectively, two pairs of the vertically symmetrical pin shaft holes are hinged on the connecting block (5) through pin shafts (14), the other two pairs of the pin shaft holes are hinged with one end of the connecting rod mechanism (6) through the pin shafts (14), and the other end of the connecting rod mechanism is hinged on the steel bracket (7) through the pin shafts (14).
3. The middle rope supporting mechanism of the cage guide rope according to claim 1, characterized in that: the clamping surface of the catching forceps (4) is provided with a flexible layer (15).
4. The middle rope supporting mechanism of the cage guide rope according to claim 3, characterized in that: the flexible layer (15) is a rubber plate which is fixedly riveted on the clamping surface of the catching pliers (4).
5. The middle rope supporting mechanism of the cage guide rope according to claim 1, characterized in that: the steel support (7) is a steel structure truss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390192.XU CN209740457U (en) | 2019-03-26 | 2019-03-26 | Middle rope supporting mechanism of cage guide rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390192.XU CN209740457U (en) | 2019-03-26 | 2019-03-26 | Middle rope supporting mechanism of cage guide rope |
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| Publication Number | Publication Date |
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| CN209740457U true CN209740457U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920390192.XU Active CN209740457U (en) | 2019-03-26 | 2019-03-26 | Middle rope supporting mechanism of cage guide rope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823940A (en) * | 2019-03-26 | 2019-05-31 | 中煤第五建设有限公司 | A kind of cage guide rope middle part rope support mechanism |
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2019
- 2019-03-26 CN CN201920390192.XU patent/CN209740457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823940A (en) * | 2019-03-26 | 2019-05-31 | 中煤第五建设有限公司 | A kind of cage guide rope middle part rope support mechanism |
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