Mechanical device for anti-falling rope at grade change point of overhead man-riding device

Abstract

The utility model discloses a mechanical device for preventing a rope from falling off at a grade change point of an overhead man-riding device, and belongs to the field of overhead man-riding devices, in particular to the mechanical device for preventing the rope from falling off at the grade change point of the overhead man-riding device. Comprising a supporting wheel frame, a supporting part rotationally connected with the supporting wheel frame, main supporting wheels, an auxiliary supporting wheel and a supporting wheel, the main supporting wheels and the auxiliary supporting wheel are sequentially and fixedly connected with the supporting part, the supporting wheel is installed between the two main supporting wheels, a supporting frame is installed on the outer side of the supporting wheel, and the supporting wheel is rotationally connected with the supporting frame. According to the first connecting shaft rods symmetrically and fixedly connected to the top end of the supporting frame, after a steel wire rope is used for a long time and becomes longer, a spring can contract for tensioning, impact and vibration generated by system movement can be relieved through a damping rod, unstable movement caused by sharp changes can be avoided, and the service life of the steel wire rope is prolonged. According to the arrangement, the stability of transportation is improved, the vibration amplitude of the system is reduced, and the stability of the whole system is improved.

Description

Technical Field

[0001] The utility model relates to the field of overhead passenger devices, and more specifically to a mechanical device for preventing a falling rope at a slope-changing point of an overhead passenger device. Background Art

[0002] Overhead passenger devices in coal mines have been widely used in mines in recent years because of their adaptability to various complex conditions, simple transportation methods, easy installation, and high cost-effectiveness. With the application and promotion of monkey cars, the number of industrial accidents in the operation of monkey cars has gradually increased. In monkey car operation accidents, the biggest and most common hidden danger affecting the safe operation of monkey cars is the wire rope wheel drop. Among various monkey car wheel drop accidents, the wire rope wheel drop accident at the slope change point causes the greatest damage to equipment and personnel. Because of the limitations of various objective conditions such as the direction of coal seams in coal mines and tunnel excavation, most of the tunnels where monkey cars are installed cannot have a single slope, but are ups and downs, with multiple slope change points. In this way, when installing monkey cars, there will always be places where the roof is low and places where the roof is high. In order for the monkey car to be used successfully, during the actual installation process, supporting wheels and pressure wheels will be installed at various slope change points to adjust the direction of the wire rope so that it can adapt to changes in tunnel conditions. The supporting wheel and pressure wheel at this slope change point are located at the turning point of the running wire rope, and they bear much more pressure from the wire rope than the supporting wheels at other places. Therefore, once the wire rope here falls off the wheel, the force generated by the wire rope falling off the wheel is very large. The huge elastic force causes great damage to the seats and passengers. Therefore, it is very important to take various measures to ensure that the monkey car wire rope does not fall off the wheel at the slope change point.

[0003] Patent authorization number CN221316123U discloses a wire rope anti-fall device for an overhead passenger device at a slope change point, comprising a support portion and a main supporting wheel rotatably connected to the support portion, the main supporting wheel being able to support the wire rope, a secondary supporting wheel rotatably connected to the support portion being provided on one side of the main supporting wheel, wheels being sleeved on the main supporting wheel and the secondary supporting wheel, so that the wire rope and the claw of the lining monkey car can pass normally, and the wire rope that falls on the wheel lining of the secondary supporting wheel has a tendency to move inward under the action of the elastic force of the wire rope, and will not continue to fall to the outside.

[0004] However, in patent authorization number CN221316123U, both ends of the spring are respectively fixed to the upper connecting block and the lower connecting block. The spring can provide a certain preload force, so that the support wheel is always in contact with the wire rope, and at the same time can achieve a certain tensioning effect. When the wire rope becomes longer after long-term use, the spring can contract for tensioning. Since there is no damping force intervention in the spring during operation, the support wheel will be bumped under the elastic action of the spring, which can easily cause the wire rope to detach from the support wheel. Therefore, we propose a mechanical device for anti-falling rope at the slope change point of an overhead passenger device to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a mechanical device for preventing falling ropes at the slope change points of overhead passenger devices, which can contract the spring for tensioning after the length of the wire rope becomes longer after long-term use, and utilize the damping rod to mitigate the impact and vibration caused by the movement of the system, thereby helping to avoid unstable movement caused by sudden changes. The above arrangement helps to improve the smoothness of transportation, reduce the vibration amplitude of the system, and improve the stability of the entire system.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A mechanical device for preventing a falling rope at a slope change point of an overhead passenger device comprises a wheel frame, a support portion rotatably connected to the wheel frame, a main wheel and a secondary wheel fixedly connected to the support portion in sequence, and a support wheel installed between the two main wheels, a support frame is installed on the outer side of the support wheel, and the support wheel is rotatably connected to the support frame, and a first connecting shaft rod is symmetrically fixedly connected to the top end of the support frame;

[0010] A connecting frame welded to the supporting wheel frame is arranged above the supporting frame, guide holes are symmetrically provided on both side walls of the connecting frame, a partition is fixedly connected to the inner middle section of the connecting frame, and guide rods are welded on both sides of the partition;

[0011] The guide rod is slidably connected with a movable seat, and the outer walls on both sides of the movable seat are welded with guide column heads that are gap-matched with the guide hole, and the bottom of the movable seat is fixedly connected with a second connecting shaft rod;

[0012] A connecting arm is installed between the first connecting shaft and the second connecting shaft;

[0013] The outer side of the guide rod is sleeved with a spring;

[0014] A damping rod is installed between the connecting frame and the supporting frame.

[0015] Furthermore, a monitoring camera fixedly connected to the supporting wheel frame is arranged above the supporting portion.

[0016] Furthermore, bearings are installed at both ends of the connecting arm, and the bearings are respectively interference-connected with the first connecting shaft and the second connecting shaft.

[0017] Furthermore, one end of the spring is connected to the partition, and the other end of the spring is connected to the side wall of the movable seat.

[0018] Furthermore, a through hole is provided at the portion where the movable seat is combined with the guide rod, and the inner diameter of the through hole is matched with the outer diameter of the guide rod.

[0019] Furthermore, the outer walls of the main supporting wheel, the auxiliary supporting wheel and the supporting wheel are all provided with wheel liners.

[0020] Furthermore, a steel wire rope is arranged between the main supporting wheel and the supporting wheel, and the steel wire rope is tightly fitted to the wheel liner.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] (1) This solution utilizes the elastic force of the spring to make the movable seat slide with the guide rod, and guides the movable seat by sliding the guide column head with the guide hole. The movable end of the damping rod is compressed, reducing the energy transfer caused by vibration, impact or other forms of movement, thereby improving the energy absorption effect and avoiding the situation where the support wheel jumps up and down due to the rebound force of the spring. It can provide a certain preload force so that the support wheel is always in contact with the wire rope, and at the same time can achieve a certain tensioning effect. When the wire rope becomes longer after long-term use, the spring can contract for tensioning, which can reduce the impact and vibration caused by the movement of the system. In environments such as coal mines, the movement of the wire rope may be unstable, especially at the slope change point. This helps to avoid unstable movement caused by sudden changes. The above-mentioned settings help to improve the smoothness of transportation, reduce the vibration amplitude of the system, and improve the stability of the entire system.

[0024] (2) This solution connects the monitoring camera to the background monitoring display system. The monkey car maintenance personnel can receive relevant information in time during the inspection and take measures, such as emergency braking, etc., and can restore the wire rope to the wheel lining of the main support wheel as soon as possible to keep the monkey car wire rope running in the normal position. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the connecting frame of the utility model;

[0027] Figure 3 It is a schematic diagram of the spring structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the structure of the movable seat of the utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Roller frame; 2. Support part; 3. Main roller; 4. Auxiliary roller; 5. Support wheel; 6. Support frame; 7. First connecting shaft; 8. Connecting frame; 9. Guide hole; 10. Partition; 11. Guide rod; 12. Movable seat; 13. Guide column head; 14. Second connecting shaft; 15. Connecting arm; 16. Spring; 17. Damping rod; 18. Monitoring camera. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0032] Example:

[0033] See also Figure 1-4 A mechanical device for preventing a falling rope at a slope change point of an overhead passenger device comprises a supporting wheel frame 1, a supporting part 2 rotatably connected to the supporting wheel frame 1, a main supporting wheel 3 and an auxiliary supporting wheel 4 which are sequentially fixedly connected to the supporting part 2, and a supporting wheel 5 installed between the two main supporting wheels 3, a supporting frame 6 is installed on the outer side of the supporting wheel 5, and the supporting wheel 5 is rotatably connected to the supporting frame 6, and a first connecting shaft rod 7 is symmetrically fixedly connected to the top of the supporting frame 6;

[0034] A connecting frame 8 is provided above the supporting frame 6 and is welded to the supporting wheel frame 1. Guide holes 9 are symmetrically provided on both side walls of the connecting frame 8. A partition plate 10 is fixedly connected to the inner middle section of the connecting frame 8. Guide rods 11 are welded on both sides of the partition plate 10.

[0035] A movable seat 12 is slidably connected to the guide rod 11, and guide column heads 13 that are gap-matched with the guide hole 9 are welded to the outer walls of both sides of the movable seat 12, and a second connecting shaft 14 is fixedly connected to the bottom of the movable seat 12;

[0036] A connecting arm 15 is installed between the first connecting shaft 7 and the second connecting shaft 14;

[0037] The outer side of the guide rod 11 is sleeved with a spring 16;

[0038] A damping rod 17 is installed between the connecting frame 8 and the supporting frame 6;

[0039] It should be noted that when the mechanical device of the slope-changing point anti-falling rope of the overhead passenger device is in use, the two main supporting wheels 3 are both capable of supporting the wire rope through the above-mentioned arrangement, the pressure on each main supporting wheel 3 is reduced, and the probability of the wire rope falling on the two main supporting wheels 3 at the same time is small, and the supporting wheel frame 1 can withstand greater pressure and has a stronger structural strength;

[0040] After many transformation experiments, a secondary supporting wheel 4 of the same length is added to the original monkey car main supporting wheel 3, that is, the main supporting wheel 3 cooperates with the secondary supporting wheel 4, and the center line of the wire rope is adjusted to the wheel lining of the main supporting wheel 3. The wheel lining of the main supporting wheel 3 is used for normal work. When the wire rope deviates from the falling wheel due to vibration, it just falls on the wheel lining of the secondary supporting wheel 4 on the outside. The device can still work normally, and the monkey car wire rope and the claw can pass normally. The wire rope that falls on the wheel lining of the secondary supporting wheel 4 has a tendency to move inward under the action of the elastic force of the wire rope, and will not continue to fall to the outside;

[0041] The wheel lining on the support wheel 5 supports the wire rope. By setting the support wheel 5 to cooperate with the main supporting wheel 3 and the auxiliary supporting wheel 4, the upper part of the support wheel 5 supports the wire rope, and the support part 2 bears the pressure of the wire rope. The upper and lower ends of the wire rope are supported by the above-mentioned setting, which can further limit the wire rope to prevent the wire rope from falling off the wheel. At the same time, the support wheel 5 is set between the main supporting wheel 3 and the auxiliary supporting wheel 4, which can effectively play a limiting role, which helps to make the wire rope obtain more uniform supporting force at the slope change point, reduce the wear and pressure of the local supporting wheel, extend the service life of the supporting wheel and the wire rope, and improve the stability of the system. The elastic force of the spring 16 is used to make the movable seat 12 cooperate with the guide rod 11 to slide, and at the same time, the guide column head 13 cooperates with the guide hole 9 to slide the movable seat 1 2, the movable end of the damping rod 17 is compressed to reduce the energy transfer caused by vibration, impact or other forms of movement, thereby improving the energy absorption effect and avoiding the situation where the support wheel 5 jumps up and down due to the rebound force of the spring 16. It can provide a certain preload force so that the support wheel 5 is always in contact with the wire rope, and at the same time can have a certain tensioning effect. When the wire rope becomes longer after long-term use, the spring 16 can contract for tensioning, which can reduce the impact and vibration caused by the movement of the system. In environments such as coal mines, the movement of the wire rope may be unstable, especially at the slope change point, which helps to avoid unstable movement caused by sudden changes. The above-mentioned settings help to improve the stability of transportation, reduce the vibration amplitude of the system, and improve the stability of the entire system.

[0042] like Figure 3 As shown, a monitoring camera 18 fixedly connected to the supporting wheel frame 1 is arranged above the supporting portion 2;

[0043] It should be noted that by accessing the background monitoring display system through the monitoring camera 18, the monkey car maintenance personnel can receive relevant information in time during the inspection and take measures, such as emergency braking, etc., and can restore the wire rope to the wheel lining of the main supporting wheel 3 as soon as possible to keep the monkey car wire rope running in the normal position.

[0044] like Figure 1 , Figure 4As shown, bearings are installed at both ends of the connecting arm 15, and the bearings are respectively connected with the first connecting shaft 7 and the second connecting shaft 14 by interference fit;

[0045] It should be noted that the friction between the connecting arm 15 and the first connecting shaft 7 and the second connecting shaft 14 is reduced, and the rotation accuracy of the end position of the connecting arm 15 is ensured.

[0046] like Figure 2 , Figure 3 As shown, one end of the spring 16 is connected to the partition 10, and the other end of the spring 16 is connected to the side wall of the movable seat 12. A through hole is provided at the portion where the movable seat 12 is combined with the guide rod 11, and the inner diameter of the through hole is adapted to the outer diameter of the guide rod 11;

[0047] It should be noted that a certain preload force can be provided so that the support wheel 5 is always in contact with the wire rope, and at the same time a certain tensioning effect can be achieved. When the wire rope becomes longer after long-term use, the spring 16 can contract for tensioning, which can reduce the impact and vibration caused by the movement of the system.

[0048] like Figure 1 As shown, the outer walls of the main supporting wheel 3, the auxiliary supporting wheel 4 and the supporting wheel 5 are all provided with wheel linings, and a steel wire rope is provided between the main supporting wheel 3 and the supporting wheel 5, and the steel wire rope is closely fitted to the wheel lining;

[0049] It should be noted that the wire rope can be effectively prevented from falling off the wheel.

[0050] When in use: through the above arrangement, the two main supporting wheels 3 can both support the wire rope, the pressure on each main supporting wheel 3 is reduced, and the probability of the wire rope falling off the two main supporting wheels 3 at the same time is small, and the supporting wheel frame 1 can withstand greater pressure and has a stronger structural strength;

[0051] After many transformation experiments, a secondary supporting wheel 4 of the same length is added to the original monkey car main supporting wheel 3, that is, the main supporting wheel 3 cooperates with the secondary supporting wheel 4, and the center line of the wire rope is adjusted to the wheel lining of the main supporting wheel 3. The wheel lining of the main supporting wheel 3 is used for normal work. When the wire rope deviates from the falling wheel due to vibration, it just falls on the wheel lining of the secondary supporting wheel 4 on the outside. The device can still work normally, and the monkey car wire rope and the claw can pass normally. The wire rope that falls on the wheel lining of the secondary supporting wheel 4 has a tendency to move inward under the action of the elastic force of the wire rope, and will not continue to fall to the outside;

[0052] The wheel lining on the support wheel 5 supports the wire rope. By setting the support wheel 5 to cooperate with the main supporting wheel 3 and the auxiliary supporting wheel 4, the upper part of the support wheel 5 supports the wire rope, and the support part 2 bears the pressure of the wire rope. The upper and lower ends of the wire rope are supported by the above-mentioned setting, which can further limit the wire rope to prevent the wire rope from falling off the wheel. At the same time, the support wheel 5 is set between the main supporting wheel 3 and the auxiliary supporting wheel 4, which can effectively play a limiting role, which helps to make the wire rope obtain more uniform supporting force at the slope change point, reduce the wear and pressure of the local supporting wheel, and extend the support wheel and wire rope. In order to extend the service life of the rope and improve the stability of the system, the elastic force of the spring 16 is used to make the movable seat 12 slide with the guide rod 11, and at the same time, the guide column head 13 slides with the guide hole 9 to guide the movable seat 12, and the movable end of the damping rod 17 is compressed to reduce the energy transfer caused by vibration, impact or other forms of movement, thereby improving the energy absorption effect and avoiding the support wheel 5 from jumping up and down due to the rebound force of the spring 16. It can provide a certain preload force, so that the support wheel 5 is always in contact with the wire rope, and at the same time can achieve a certain tensioning effect.

[0053] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A mechanical device for preventing a falling rope at a slope change point of an overhead passenger device, comprising a wheel frame (1), a support portion (2) rotatably connected to the wheel frame (1), a main wheel (3) and a secondary wheel (4) fixedly connected to the support portion (2) in sequence, and a support wheel (5) installed between the two main wheels (3), characterized in that: A support frame (6) is installed on the outer side of the support wheel (5), and the support wheel (5) is rotatably connected to the support frame (6), and a first connecting shaft (7) is symmetrically fixedly connected to the top of the support frame (6); A connecting frame (8) is arranged above the support frame (6) and is welded to the supporting wheel frame (1). Guide holes (9) are symmetrically provided on both side walls of the connecting frame (8). A partition plate (10) is fixedly connected to the middle section of the inner side of the connecting frame (8). Guide rods (11) are welded on both sides of the partition plate (10). The guide rod (11) is slidably connected to a movable seat (12), both side outer walls of the movable seat (12) are welded with guide column heads (13) that are clearance-matched with the guide hole (9), and the bottom of the movable seat (12) is fixedly connected to a second connecting shaft rod (14); A connecting arm (15) is installed between the first connecting shaft (7) and the second connecting shaft (14); The outer side of the guide rod (11) is sleeved with a spring (16); A damping rod (17) is installed between the connecting frame (8) and the supporting frame (6).

2. The mechanical device for preventing a falling rope at a slope change point of an overhead passenger device according to claim 1 is characterized in that: A monitoring camera (18) fixedly connected to the wheel support frame (1) is arranged above the support portion (2).

3. The mechanical device for preventing a falling rope at a slope change point of an overhead passenger device according to claim 1 is characterized in that: Bearings are installed at both ends of the connecting arm (15), and the bearings are respectively interference-connected with the first connecting shaft (7) and the second connecting shaft (14).

4. The mechanical device for preventing a falling rope at a slope change point of an overhead passenger device according to claim 1 is characterized in that: One end of the spring (16) is connected to the partition (10), and the other end of the spring (16) is connected to the side wall of the movable seat (12).

5. The mechanical device for preventing a falling rope at a slope change point of an overhead passenger device according to claim 1 is characterized in that: A through hole is provided at the portion where the movable seat (12) and the guide rod (11) are combined, and the inner diameter of the through hole is matched with the outer diameter of the guide rod (11).

6. The mechanical device for preventing a falling rope at a slope change point of an overhead passenger device according to claim 1, characterized in that: The outer walls of the main supporting wheel (3), the auxiliary supporting wheel (4) and the supporting wheel (5) are all provided with wheel liners.

7. The mechanical device for preventing a falling rope at a slope change point of an overhead passenger device according to claim 6 is characterized in that: A steel wire rope is arranged between the main supporting wheel (3) and the supporting wheel (5), and the steel wire rope is tightly fitted to the wheel liner.

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