Overhead man-car anti-falling system

Abstract

The utility model discloses an overhead man-car anti-roping falling system belongs to coal mine transportation technical field. Including wire rope, overhead man-car, hold rope wheel, fender, first fender, second fender, spring return mechanism and support. The top of boom is installed in wire rope along wire rope extension direction swing through the cable holder, and fender is set up in the outside of hold rope wheel, and it is bimaculate type, and the pin shaft is welded on the first wing part and the second wing part, and first fender is rotatably installed on the pin shaft of first wing part, and second fender is rotatably installed on the pin shaft of first wing part, and the board body part of fender is articulated in support, and along wire rope extension direction, first fender and second fender are separately in hold rope wheel left and right sides, and one of first wing part and second wing part is provided with elastic reset mechanism between support. Through the alternate action of fender wheel and fender, wire rope is always blocked when cable holder passes through hold rope wheel, prevents wire rope from falling, and improves the security.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine transportation technology, specifically relating to an anti-rope drop system for overhead personnel carriers. Background Technology

[0002] The aerial personnel carrier (or aerial trolley) is an auxiliary transportation device used in coal mines, primarily for transporting personnel up and down inclined shafts or horizontal tunnels. It mainly consists of a drive unit, a rope-supporting (pressing) device, a passenger carrier, a tail pulley device, a tensioning device, safety protection devices, and an electrical control device. During operation, the steel wire rope of the aerial personnel carrier may sometimes fall off the rope-supporting pulley due to factors such as swaying and load changes, especially at the personnel loading and unloading points. This poses a safety hazard to passengers, can easily damage the steel wire rope, and can also cause problems such as misalignment of the rope-supporting pulleys on the crossbeam.

[0003] Existing technologies already include some devices to prevent ropes from falling off or slipping off. For example... Figure 1 The overhead personnel carrier anti-rope detachment protection device shown uses an integral baffle 14, directly installed on the outside of the rope-supporting pulley 3. Its top is hinged, while its bottom is free, allowing it to swing around the top. The baffle prevents the wire rope 1 from slipping out. However, this structure has a significant drawback:

[0004] 1. When the chairlift passes by, the baffle swings under the push of the chairlift to avoid it. When avoiding the chairlift, the baffle releases its obstruction of the wire rope, creating a "blocking gap". Moreover, during the contact between the chairlift and the baffle, a rigid collision and interference occur, which not only results in high resistance but may also cause equipment deformation or failure due to the impact.

[0005] 2. The friction between the cable gripper and the baffle is sliding friction, which is high. Long-term operation can easily lead to wear on both the cable gripper and the baffle, resulting in high maintenance costs.

[0006] These shortcomings make the existing anti-rope slippage protection devices for overhead personnel and vehicles ineffective in actual use, unable to fundamentally solve the rope slippage problem, and they are also easily damaged and require frequent maintenance. Utility Model Content

[0007] The purpose of this invention is to provide a simple structure for an overhead personnel vehicle anti-rope falling system that can effectively prevent steel wire ropes from falling.

[0008] The technical solution adopted in this utility model is: an aerial personnel carrier anti-rope drop system, including a steel wire rope, an aerial personnel carrier, and a rope-supporting wheel. The inner side of the rope-supporting wheel is provided with a retaining flange. The steel wire rope is supported by the rope-supporting wheel, and its inner side is limited by the retaining flange. The aerial personnel carrier includes a boom, the top of which is movably installed on the steel wire rope along its extension direction via a rope gripper. The boom includes a rope-blocking plate, a first rope-blocking wheel, a second rope-blocking wheel, a spring reset mechanism, and a bracket. The rope-blocking plate is located on the outer side of the rope-supporting wheel and is double-wing shaped, including a central section... The plate has a body, a first wing located at the left end of the body, and a second wing located at the right end of the body. Each of the first and second wings is welded with a pin. A first rope guide wheel is rotatably mounted on the pin of the first wing, and a second rope guide wheel is rotatably mounted on the pin of the first wing. The body of the rope guide plate is hinged to the bracket. Along the extension direction of the wire rope, the first and second rope guide wheels are located on the left and right sides of the rope guide wheel, respectively. An elastic reset mechanism is provided between one of the first and second wings and the bracket.

[0009] Furthermore, the bracket includes a crossbeam and an anti-detachment fixing plate, the anti-detachment fixing plate being detachably installed on the crossbeam via a U-shaped clip; the rope-blocking plate is hinged to the anti-detachment fixing plate via a hinged support.

[0010] Furthermore, the rope-supporting pulley is mounted on the crossbeam via a connecting bracket.

[0011] Furthermore, the elastic reset mechanism includes a spring fixing rod, an upper spring, and a lower spring; a through hole is provided on the anti-detachment fixing plate, the bottom end of the spring fixing rod is hinged to the rope-blocking plate, and the top end passes through the through hole of the anti-detachment fixing plate; the lower spring is fitted onto the segment of the spring fixing rod located between the anti-detachment fixing plate and the rope-blocking plate; the upper spring is fitted onto the segment of the spring fixing rod located above the anti-detachment fixing plate; and the top end of the spring fixing rod is locked with a cotter pin.

[0012] Furthermore, a fork-shaped hole frame is fixedly connected to the lower end of the spring fixing rod, and the fork-shaped hole frame is hinged to the rope-blocking plate.

[0013] Furthermore, the fork-shaped hole frame and the rope-blocking plate are provided with pin holes at corresponding positions, and the fork-shaped hole frame and the rope-blocking plate are hinged by inserting pins into the pin holes of the fork-shaped hole frame and the rope-blocking plate.

[0014] The beneficial effects of this utility model are as follows: The overhead personnel carrier anti-rope drop system disclosed in this utility model, through the arrangement of the double-winged rope-blocking plate and the first and second rope-blocking wheels, ensures that when the chairlift passes by, the rope-blocking plate does not rigidly block, but rather one side is lifted while the other side falls. At least one set of the first wing and its first rope-blocking wheel, and the second wing and its second rope-blocking wheel, forms effective protection on the outside of the wire rope. This ensures that the wire rope is reliably confined within the rope-blocking wheel groove throughout the entire process of the chairlift passing through the rope-blocking wheel, greatly improving the safety and reliability of the system.

[0015] The rotating rope guide wheel contacts the rope gripper, and the rolling friction between them makes the rope gripper pass through more smoothly, reducing operating energy consumption and equipment load. This significantly reduces wear on the rope gripper and rope guide device themselves, avoiding rapid wear and deformation caused by intense friction, effectively extending the service life of the rope gripper, rope guide wheel, and the entire device, and reducing maintenance costs and replacement frequency.

[0016] The spring reset mechanism provides a stable and continuous reset force for the rope guide plate. Regardless of which rope guide wheel is lifted by the rope gripper, the spring mechanism can quickly and accurately return the entire rope guide plate to its initial equilibrium position after the rope gripper passes, ensuring that both front and rear rope guide wheels are simultaneously in a ready-to-stop rope-guarding state. This avoids the problem of failure to reset due to inertia or jamming. This forced automatic reset mechanism ensures that the completion of each protective action is the beginning of the next effective protection, greatly improving the reliability and durability of the device.

[0017] With a simple overall structure, its components are mostly standard or easily machined parts such as plates, shafts, wheels, and springs, resulting in low manufacturing costs and high structural strength, making it very suitable for the harsh working environment of underground coal mines. It also lacks complex electrical or hydraulic components, leading to a low failure rate and robust durability. Attached Figure Description

[0018] Figure 1 Main view of existing technology;

[0019] Figure 2 This is the front view of the present utility model;

[0020] Figure 3 Main view of the first rope guide wheel of this utility model being lifted.

[0021] Figure 4 This is a front view of the second guide rope wheel of this utility model being raised;

[0022] Figure 5 This is the left view of the present invention;

[0023] Figure 6 This is a top view of the present invention;

[0024] Figure 7 This is a schematic diagram of the rope-blocking plate.

[0025] In the diagram, the components are: 1. Wire rope; 2. Cable gripper; 3. Rope stop plate; 3-1. Plate body; 3-2. First wing; 3-3. Second wing; 3-4. Pin; 3-5. First rope stop wheel; 4. Second rope stop wheel; 5. Rope support wheel; 6. Bracket; 7. Crossbeam; 7-1. Anti-detachment fixing plate; 7-2. U-shaped clip; 7-3. Hinge support; 7-4. Elastic reset mechanism; 8. Spring fixing rod; 8-1. Upper spring; 8-2. Lower spring; 8-3. Fork-shaped hole frame; 8-4. Hanging rod; 9. Connecting bracket; 10. Rope support wheel fixing plate; 11. Hanging chair; 12. Foot pedal; 13. Baffle plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] In this specification, unless otherwise stated, the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the appendix. Figure 2 The orientation or positional relationship shown is for the purpose of describing the present invention only, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] The overhead vehicle anti-drop rope system disclosed in this utility model, such as Figure 1 and Figure 5 As shown, the system includes a wire rope 1, an aerial personnel carrier, and a rope-supporting pulley 6. The aerial personnel carrier includes a boom 9, a chair 12, and footrests 13. The chair 12 and footrests 13 are fixed to the boom 9. In use, the operator sits on the chair 12 and places their feet on the footrests 13. The wire rope 1 serves as the track for the aerial personnel carrier. The top of the boom 9 is attached to the wire rope 1 via a cable gripper 2, which can move along the wire rope 1, thus enabling the aerial personnel carrier to move along the wire rope 1. The rope-supporting pulley 6 provides a fulcrum below the wire rope 1 to support it. The cross-section of the rope-supporting pulley 6 along its axial direction is T-shaped, meaning that a flange is provided on its inner side. This flange, similar to a baffle, limits the movement of the wire rope 1 from the inside, preventing it from slipping off the inside of the rope-supporting pulley 6. In this manual, "inner side," "outer side," "left end," and "right end" indicate relative positional relationships. One side of the wire rope 1 is its inner side, and the side opposite to the inner side is its outer side. One end of the wire rope 1 along its extension direction is the left end, and the end opposite to the left end is the right end. If the wire rope 1 is only restrained on the inner side and not on the outer side, there is a risk that the wire rope 1 will detach from the sheave pulley 6 on the outer side.

[0029] To prevent the wire rope 1 from detaching from the outer side of the sheave pulley 6, the traditional method is as follows: Figure 1As shown, an integral baffle 14 is directly installed on the outside of the rope-supporting pulley 3. Its top end is hinged, and its bottom end is free, allowing it to swing around the top end. The baffle 14 prevents the wire rope 1 from moving out. When the rope gripper 2 passes the rope-supporting pulley 3, the bottom end of the baffle 14 rotates under the push of the rope gripper 2 and is pushed open by the rope gripper 2. After the rope gripper 2 leaves the bottom end of the baffle 14, the baffle 14 resets under gravity and continues to prevent the wire rope 1 from moving out.

[0030] This utility model discloses a structure, different from traditional methods, for preventing the wire rope 1 from detaching from the outer side of the rope-supporting pulley 6, such as... Figure 2 , Figure 5 and Figure 6 As shown, it includes a rope-blocking plate 3, a first rope-blocking wheel 4, a second rope-blocking wheel 5, a spring reset mechanism, and a bracket 7; the rope-blocking plate 3 is disposed on the outside of the rope-supporting wheel 6, and the rope-blocking plate 3 limits the wire rope 1 from the outside to prevent the wire rope 1 from detaching from the rope-supporting wheel 6. Figure 7 As shown, the rope deflector 3 is double-winged, comprising a central body portion 3-1, a first wing 3-2 located at the left end of the body portion 3-1, and a second wing 3-3 located at the right end of the body portion 3-1. The rope deflector 3 is typically a single-piece molded component; the body portion 3-1, the first wing 3-2, and the second wing 3-3 are simply different sections of the rope deflector 3. Of course, the body portion 3-1, the first wing 3-2, and the second wing 3-3 can also be assembled from independent panels to form the rope deflector 3. Pins 3-4 are welded to both the first wing 3-2 and the second wing 3-3. The first rope guide wheel 4 is rotatably mounted on the pin 3-4 of the first wing, and the second rope guide wheel 5 is rotatably mounted on the pin 3-4 of the first wing 3-2. With this configuration, when the rope gripper 2 moves the aerial personnel carrier to the position of the first rope guide wheel 4 or the second rope guide wheel 5, the first rope guide wheel 4 or the second rope guide wheel 5 rolls relative to the aerial personnel carrier, resulting in less frictional resistance. This helps to reduce the wear of the rope gripper 2, the rope guide wheel, and the rope guide plate 3, and extends their service life.

[0031] The body 3-1 of the rope-blocking plate 3 is hinged to the bracket 7; and along the extension direction of the wire rope 1, the first rope-blocking wheel 4 and the second rope-blocking wheel 5 are located on the left and right sides of the rope-supporting wheel 6 respectively; an elastic reset mechanism is provided between one of the first wing 3-2 and the second wing 3-3 and the bracket 7. This arrangement ensures that the first wing 3-2 and the first rope-blocking wheel 4 and the second wing 3-3 and the second rope-blocking wheel 5 of the rope-blocking plate 3 together prevent the wire rope 1 from falling off the rope-supporting wheel 6. When the rope gripper 2 passes the rope-supporting wheel 6, the first wing 3-2 and the first rope-blocking wheel 4 and the second wing 3-3 and the second rope-blocking wheel 5 alternately move up and down around the axis to block the wire rope 1, preventing the wire rope 1 from falling off the rope-supporting wheel 6. Specifically, when the rope gripper 2 is about to pass the rope-supporting wheel, such as Figure 3As shown, when the first rope guide wheel 4 is reached, the rope gripper 2 lifts the first rope guide wheel 4, and the rope guide plate 3 rotates positively around its hinge point with the bracket 7. The second wing 3-3 and the second rope guide wheel 5 on it fall down to block the wire rope 1; as shown Figure 4 As shown, when the cable gripper 2 reaches the second rope guide wheel 5, the second rope guide wheel 5 is lifted up, and the rope guide plate 3 rotates in the opposite direction around its hinge point with the bracket 7. The first wing 3-2 and the first rope guide wheel 4 on it fall down to block the wire rope 1. When the cable gripper 2 passes the second wing 3-3 and the second rope guide wheel 5 on it, the rope guide plate 3 will be restored to the state where the first wing 3-2 and the second wing 3-3 simultaneously block the wire rope 1 under the elastic force of the elastic reset mechanism. This ensures that the cable gripper 2 will never fall off the rope guide wheel 6 when it passes the rope guide wheel 6, thus preventing the wire rope 1 from falling off the rope guide wheel 6.

[0032] The bracket 7 serves to support the rope-blocking plate 3 and related components such as the elastic reset mechanism. It can employ a truss structure, etc. In this embodiment, the bracket 7 includes a crossbeam 7-1 and an anti-detachment fixing plate 7-2. The anti-detachment fixing plate 7-2 is detachably installed on the crossbeam 7-1 via a U-shaped clip 7-3. The rope-blocking plate 3 is hinged to the anti-detachment fixing plate 7-2 via a hinged support 7-4. The bracket 7 adopts a combination structure of the crossbeam 7-1 and the fixing plate, and achieves detachable installation via the U-shaped clip 7-3, facilitating quick on-site installation and disassembly, adapting to installation requirements under different working conditions, and improving the applicability and maintenance convenience of the device.

[0033] The rope-supporting wheel 6 and the rope-blocking plate 3 can be supported by completely independent support systems. Preferably, the rope-supporting wheel 6 is installed on the crossbeam 7-1 via a connecting bracket 10. As shown in the figure, a rope-supporting wheel fixing plate 11 is welded to the top of the connecting bracket 10. The rope-supporting wheel fixing plate 11 is detachably installed on the crossbeam 7-1 via a U-shaped clip 7-3. The rope-supporting wheel 6 is rotatably installed on the connecting bracket via a rotating shaft.

[0034] The rope-supporting wheel 6 and the rope-blocking plate 3 are installed together on the same crossbeam 7-1, which enhances the overall integrity and structural stability of the system, avoids alignment deviations caused by the scattered installation of components, and further ensures the reliability of the anti-rope-dropping effect.

[0035] The elastic reset mechanism 8 can be directly installed between the bracket and the rope retaining plate 3 using a single spring. Preferably, the elastic reset mechanism 8 includes a spring fixing rod 8-1, an upper spring 8-2, a lower spring 8-3, and a fork-shaped hole frame 8-4. The lower end of the spring fixing rod 8-1 is connected to the fork-shaped hole frame 8-4, and the upper end is fixed with a cotter pin. The lower spring 8-3 and the upper spring 8-2 are sleeved on the spring fixing rod 8-1. The fork-shaped hole frame 8-4 is slotted and welded to the lower end of the spring fixing rod 8-1. A through hole is provided on the anti-detachment fixing plate 7-2. During installation, first, insert the lower spring 8-3 into the spring fixing rod 8-1; then, pass the top of the spring fixing rod 8-1 through the through hole on the anti-detachment fixing plate 7-2 from below; next, insert the upper spring 8-2 into the upper end of the spring fixing rod 8-1; then, lock the upper end of the spring fixing rod 8-1 with a cotter pin to prevent the upper spring 8-2 from popping out from the upper end of the spring fixing rod 8-1; finally, insert the fork-shaped hole bracket 8-4 into the rope-blocking plate 3 from above. Pin holes 3-5 are respectively opened at corresponding positions on the fork-shaped hole bracket 8-4 and the rope-blocking plate 3. A pin is used to pass through the pin holes 3-5 on the fork-shaped hole bracket 8-4 and the rope-blocking plate 3 to connect the bottom end of the spring fixing rod 8-1 to the rope-blocking plate 3.

[0036] The design employs upper and lower double springs in conjunction with spring fixing rod 8-1 and fork-shaped hole bracket 8-4, providing a stable and continuous restoring force. This ensures that the rope-blocking plate 3 can quickly and accurately return to its initial rope-blocking state after being subjected to force, enhancing the system's dynamic response capability and durability.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-drop rope system for an overhead personnel carrier, comprising a steel wire rope (1), an overhead personnel carrier, and a rope-supporting wheel (6), wherein the inner side of the rope-supporting wheel (6) is provided with a retaining flange, the steel wire rope (1) is supported by the rope-supporting wheel (6), and the inner side is limited by the retaining flange; the overhead personnel carrier includes a boom (9), the top end of the boom (9) is movably installed on the steel wire rope (1) along the extension direction of the steel wire rope (1) via a rope gripper (2), characterized in that, The system includes a rope-blocking plate (3), a first rope-blocking wheel (4), a second rope-blocking wheel (5), a spring reset mechanism, and a bracket (7). The rope-blocking plate (3) is located outside the rope-supporting wheel (6) and is double-wing shaped, comprising a central plate body (3-1), a first wing (3-2) located at the left end of the plate body (3-1), and a second wing (3-3) located at the right end of the plate body (3-1). Pins (3-4) are welded to both the first wing (3-2) and the second wing (3-3). The first rope-blocking wheel (4) The first wing (3-4) is rotatably mounted on the pin (3-4) of the first wing (3-2), and the second rope guide wheel (5) is rotatably mounted on the pin (3-4) of the first wing (3-2). The body (3-1) of the rope guide plate (3) is hinged to the bracket (7). Along the extension direction of the wire rope (1), the first rope guide wheel (4) and the second rope guide wheel (5) are located on the left and right sides of the rope support wheel (6). An elastic reset mechanism (8) is provided between one of the first wing (3-2) and the second wing (3-3) and the bracket (7).

2. The aerial personnel vehicle anti-drop rope system according to claim 1, characterized in that: The bracket (7) includes a crossbeam (7-1) and an anti-detachment fixing plate (7-2). The anti-detachment fixing plate (7-2) is detachably installed on the crossbeam (7-1) by means of a U-shaped clip (7-3). The rope-blocking plate (3) is hinged to the anti-detachment fixing plate (7-2) by means of a hinged support (7-4).

3. The aerial personnel carrier anti-drop rope system according to claim 2, characterized in that: The rope-supporting wheel (6) is mounted on the crossbeam (7-1) via a connecting bracket (10).

4. The aerial personnel carrier anti-drop rope system according to claim 2 or 3, characterized in that: The elastic reset mechanism (8) includes a spring fixing rod (8-1), an upper spring (8-2), and a lower spring (8-3); a through hole is provided on the anti-detachment fixing plate (7-2), the bottom end of the spring fixing rod (8-1) is hinged to the rope baffle plate (3), and the top end passes through the through hole of the anti-detachment fixing plate (7-2). The lower spring (8-3) is fitted onto the section of the spring fixing rod (8-1) located between the anti-detachment fixing plate (7-2) and the rope baffle plate (3). The upper spring (8-2) is fitted onto the section of the spring fixing rod (8-1) located above the anti-detachment fixing plate (7-2), and the top end of the spring fixing rod (8-1) is locked with a cotter pin.

5. The aerial personnel carrier anti-drop rope system according to claim 4, characterized in that, A fork-shaped hole frame (8-4) is fixedly connected to the lower end of the spring fixing rod (8-1), and the fork-shaped hole frame (8-4) is hinged to the rope guard plate (3).

6. The aerial personnel carrier anti-drop rope system according to claim 5, characterized in that, The fork-shaped hole frame (8-4) and the rope-blocking plate (3) are provided with pin holes (3-5) at corresponding positions. The fork-shaped hole frame (8-4) and the rope-blocking plate (3) are hinged by inserting pins into the pin holes (3-5) of the fork-shaped hole frame (8-4) and the rope-blocking plate (3).

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