Inclined shaft high-speed falling arrester device

Abstract

The utility model discloses an inclined shaft high-speed falling arrester device which comprises a driving system and a reversing system, a support is arranged at the bottom of the driving system, a plurality of sets of fixing bolts are arranged at the top of the support, a clutch is arranged at the output end of the driving system, and a steel wire rope is arranged on the driving system. A clutch output end is arranged on one side of the clutch, a clutch input end is arranged on the other side of the clutch, an unhooking device is arranged at the position of the steel wire rope, the steel wire rope is located on the outer side of the reversing system, channel steel is arranged at the end of the steel wire rope, and chains are arranged among the multiple sets of channel steel. Under the cooperation of the driving system, the steel wire rope, the unhooking device and the reversing system, due to the fact that a new winch retracting and releasing mode is adopted, the door fence can rapidly fall within a very short time, interception can be achieved before a sports car arrives, and it is ensured that the door fence does not have the neutral gear phenomenon.

Description

Technical Field

[0001] The utility model relates to the technical field of mine equipment, in particular to a high-speed falling vehicle barrier device for an inclined shaft. Background Art

[0002] In the transportation of coal mine inclined shafts, the inclined shaft anti-runaway vehicle plays a role in the safety protection of the transport vehicles. When the system finds an abnormality, it will start the barrier in time. The barrier drives the connecting rope to start the buffer device, and the buffer device absorbs the impact load and kinetic energy, so as to achieve buffer protection. The barrier controls the retraction and release of the inclined shaft gate, opens or closes the gate, so as to achieve safe passage and protection of vehicles, so as to achieve normal operation. However, in the actual application of mines, a phenomenon is often found, that is, due to the acceleration of the inclined surface, the transport vehicle runs too fast, and the gate has not completely fallen after receiving the signal, and the transport vehicle has already rushed over, resulting in protection failure.

[0003] At present, there are three driving modes for the vehicle barrier device: electric, hydraulic and pneumatic. For example, the electric one uses an electric winch to retract and release the steel rope to open and close the gate. Since the gate size is usually large, when the transport vehicle is found to be abnormal, the winch receives a signal to intercept. The gate needs to be gradually lowered from a high altitude under the pull of the winch until it is nearly vertical. This gradual lowering process takes time. If this time is greater than the time it takes for the transport vehicle to rush down, the interception will fail. At present, the hidden danger of this failure still exists. Utility Model Content

[0004] The utility model aims to provide a high-speed descending car barrier device for an inclined shaft, so as to solve the problem in the above-mentioned background technology that the existing gate barrier has too long a descending time, delays the interception opportunity and causes interception failure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-speed falling car barrier device in an inclined shaft, comprising a driving system and a reversing system, a bracket is provided at the bottom of the driving system, a plurality of groups of fixing bolts are provided at the top of the bracket, a clutch is provided at the output end of the driving system, a steel wire rope is provided on the driving system, a clutch output end is provided on one side of the clutch, a clutch input end is provided on the other side of the clutch, a decoupling device is provided at the steel wire rope, the steel wire rope is located on the outside of the reversing system, a channel steel is provided at the end position of the steel wire rope, chains are provided between the plurality of groups of the channel steels, side channel steels are symmetrically provided on both sides of the channel steels, a plurality of groups of nuts are evenly provided at one end of the top of the channel steels, and screws are provided inside the nuts.

[0006] Preferably, the drive system is composed of a winch disc, a motor and a reducer, one side of the top of the fixing bolt is interconnected with the winch disc, the clutch is connected to the winch disc, and the wire rope is located on the outside of the winch disc. The motor on the drive system facilitates the control of the retraction and extension of the winch disc. When the winch disc is retracted, the clutch is energized and closed, and the two ends of the clutch are connected, and the winch disc rotates with the drive shaft. When the winch disc needs to be released, the clutch is de-energized, the two ends of the clutch are separated, the drive shaft rotates while the winch does not move, so that the gate rail falls with the wire rope under the action of gravity.

[0007] Preferably, eye nuts are symmetrically provided on both sides in the middle of the top of the channel steel, and the wire rope is connected to the channel steel through the eye nuts. During the connection process, the wire rope can strengthen the connection with the channel steel through the eye nuts to prevent the channel steel from falling off during use.

[0008] Preferably, the chain is connected to the channel steel by welding to ensure the connection strength of multiple groups of channel steel.

[0009] Preferably, the reversing system is composed of a pulley block and a bearing, and the steel wire rope passes around the pulley block and is connected to the channel steel, so that the steel wire rope can move along the pulley to facilitate lifting the gate rail.

[0010] Preferably, a plurality of groups of connecting steel ropes are provided on one side of the channel steel, and an energy absorber is provided on one side of the connecting steel ropes, so as to facilitate the subsequent use of the energy absorber to brake the sports car.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the high-speed falling car barrier device of the inclined shaft;

[0012] 1. The utility model adopts a new winch retracting and releasing method through the cooperation of the driving system, wire rope, unhooking device, and reversing system, so that the gate can be quickly dropped in a very short time, and the sports car can be intercepted before it arrives, ensuring that the gate will not be in a vacant position.

[0013] 2. The utility model cooperates with chains, channel steels, eye nuts and side channel steels. Since the gate rails are connected by chains, gravity is used to release them immediately when released. Compared with the swing release of the wire rope by a winch, the utility model is faster and more efficient. In addition, since the gate rails are directly released under the action of gravity, there is no need for a winch to consume electricity to drive them, thus saving electricity and energy.

[0014] 3. The utility model uses the steel wire rope, the reversing system and the chain to prevent the sports car from impacting the door railing during interception. Since the door railing is softly connected by the chain, the door railing itself can absorb some of the impact energy of the sports car. The steel wire rope can also alleviate the strong impact of the sports car through the pulley winding, which is safer. Since the door railing falls freely under the action of gravity, there is no need for a swinging mechanism that cooperates with a winch, so the structure is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the door fence structure of the utility model;

[0017] Figure 3 It is a top view of the channel steel of the utility model;

[0018] Figure 4 This is a schematic diagram of the clutch structure of the utility model.

[0019] In the figure: 1. bracket; 2. fixing bolt; 3. driving system; 4. wire rope; 5. unhooking device; 6. chain; 7. reversing system; 8. clutch; 9. channel steel; 10. nut; 11. lifting eye nut; 12. screw; 13. side channel steel; 14. clutch output end; 15. clutch input end. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4The utility model provides an embodiment of a high-speed descending car barrier device in an inclined shaft, comprising a driving system 3 and a reversing system 7. A bracket 1 is provided at the bottom of the driving system 3, and a plurality of sets of fixing bolts 2 are provided at the top of the bracket 1. A clutch 8 is provided at the output end of the driving system 3, and a steel wire rope 4 is provided on the driving system 3. The driving system 3 is composed of a winch disc, a motor and a reducer. One side of the top of the fixing bolt 2 is interconnected with the winch disc, the clutch 8 is interconnected with the winch disc, the steel wire rope 4 is located on the outside of the winch disc, and the motor on the driving system 3 is convenient for Control the retraction and release of the winch disc. When the winch disc is retracted, the clutch 8 is powered on and closed, the two ends of the clutch 8 are connected, and the winch disc rotates together with the drive shaft. When the winch disc needs to be released, the clutch 8 is powered off, the two ends of the clutch are separated, the drive shaft rotates and the winch disc does not move, so that the gate falls with the wire rope 4 under the action of gravity. A clutch output end 14 is provided on one side of the clutch 8, and a clutch input end 15 is provided on the other side of the clutch 8. A decoupling device 5 is provided at the wire rope 4. The wire rope 4 is located on the outside of the reversing system 7, and a channel steel 9 is provided at the end of the wire rope 4;

[0022] One side of the channel steel 9 is provided with multiple groups of connecting steel ropes, and one side of the connecting steel ropes is provided with an energy absorber, which is convenient for the subsequent use of the energy absorber to brake the sports car. The reversing system 7 is composed of a pulley group and a bearing. The wire rope 4 bypasses the pulley group and is connected to the channel steel 9, so that the wire rope 4 can move along the pulley, which is convenient for lifting the door railing. The two sides in the middle of the top of the channel steel 9 are symmetrically provided with lifting eye nuts 11, and the wire rope 4 is connected to the channel steel 9 through the lifting eye nuts 11. During the connection process, the wire rope 4 can be strengthened with the connection with the channel steel 9 through the lifting eye nuts 11 to prevent the channel steel 9 from falling off during use. Chains 6 are provided between the multiple groups of channel steels 9, and the chains 6 are connected to the channel steels 9 by welding to ensure the connection strength of the multiple groups of channel steels 9. Side channel steels 13 are symmetrically provided on both sides of the channel steel 9, and multiple groups of nuts 10 are evenly provided at one end of the top of the channel steel 9, and screws 12 are provided inside the nuts 10.

[0023] The winch is installed on the bracket 1, the clutch 8 is used to control the retraction and extension of the winch disc and is installed on the winch winch, and the reducer is connected to the output end of the motor, and the reducer is connected to the winch disc to drive the winch disc, and the end position of the wire rope 4 is wound in the winch disc.

[0024] Embodiment 1:

[0025] The comparison of the fast-drop barrier can be calculated as follows:

[0026] If the gate height is set to 1M, the estimated falling time is:

[0027] From H = 1 / 2gt^2, we have: t = (2h / g)1 / 2 = (2 / 9.8)^1 / 2 = 0.45 seconds;

[0028] If the winch is used for retracting and releasing, the winch diameter is 300, the motor speed is 1500rpm, and the reducer is 1:50. If the winch is lowered by 1 meter, the time required is:

[0029] Linear speed of wire rope: v = 3.14dn / 1000 = 3.14*300*1500 / 1000 / 50 = 28m / min

[0030] Then the time to fall 1 meter is: 1 / 28*60=2.1 seconds;

[0031] This is much longer than the above time, that is, 2.1 seconds >> 0.45 seconds, almost 5 times the time.

[0032] Working principle: When the rope of the operating device breaks in the shaft, the drive device 3 receives a signal from the control system, requiring the barrier to be lowered, so the clutch 8 is disengaged, causing the gate to lose the tension of the wire rope 4. At this time, the channel steel 9 and the chain 6 fall rapidly under the action of gravity and then unfold, and then intercept the sports car before it goes down. At the same time, the unhooking device 5 is disengaged. Afterwards, after the sports car returns to normal through manual intervention, the system sends a signal, and the motor on the drive system 3 rotates, causing the clutch 8 to close, so that the motor drives the winch to rotate, and finally tightens the wire rope 4 to raise the gate to a safe height.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A high-speed descending vehicle barrier device in an inclined shaft, comprising a drive system (3) and a reversing system (7), characterized in that: The bottom of the driving system (3) is provided with a bracket (1), the top of the bracket (1) is provided with a plurality of sets of fixing bolts (2), the output end of the driving system (3) is provided with a clutch (8), the driving system (3) is provided with a steel wire rope (4), one side of the clutch (8) is provided with a clutch output end (14), the other side of the clutch (8) is provided with a clutch input end (15), a decoupling device (5) is provided at the steel wire rope (4), the steel wire rope (4) is located outside the reversing system (7), a channel steel (9) is provided at the end of the steel wire rope (4), a chain (6) is provided between the plurality of sets of the channel steels (9), side channel steels (13) are symmetrically provided on both sides of the channel steel (9), a plurality of sets of nuts (10) are evenly provided at one end of the top of the channel steel (9), and a screw (12) is provided inside the nut (10).

2. The high-speed descending vehicle barrier device of an inclined shaft according to claim 1, characterized in that: The driving system (3) is composed of a winch disc, a motor and a reducer. One side of the top of the fixing bolt (2) is connected to the winch disc, the clutch (8) is connected to the winch, and the wire rope (4) is located outside the winch disc.

3. The high-speed descending vehicle barrier device of an inclined shaft according to claim 1, characterized in that: Lifting eye nuts (11) are symmetrically arranged on both sides of the middle of the top of the channel steel (9), and the steel wire rope (4) is connected to the channel steel (9) through the lifting eye nuts (11).

4. The high-speed descending vehicle barrier device of an inclined shaft according to claim 1, characterized in that: The chain (6) is connected to the channel steel (9) by welding.

5. The high-speed descending vehicle barrier device of an inclined shaft according to claim 1, characterized in that: The reversing system (7) is composed of a pulley block and a bearing, and the steel wire rope (4) passes around the pulley block and is connected to the channel steel (9).

6. The high-speed descending vehicle barrier device of an inclined shaft according to claim 1, characterized in that: One side of the channel steel (9) is provided with multiple groups of connecting steel ropes, and one side of the connecting steel ropes is provided with an energy absorber.

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