Overhead man-riding device tail shaft breakage protection device

Abstract

The utility model provides a tail shaft breakage protection device for an overhead man-riding device, which relates to the technical field of mine equipment and comprises a mounting frame and a movable frame, the movable frame is movably arranged below the mounting frame, a bracket is arranged below the movable frame, a supporting seat is arranged at the bottom of the inner side of the bracket, and the tail shaft breakage protection device is arranged on the supporting seat. A tail wheel is rotatably arranged on the supporting seat through a first shaft rod, a shaft seat is arranged at the middle end of the bottom of the movable frame, a second shaft rod is rotatably arranged in the shaft seat, and the lower end of the second shaft rod is connected with the tail wheel through a flange; a supporting rod is arranged on one side of the bottom of the movable frame, the lower end of the supporting rod is connected with a magnetic displacement switch, and the detection end of the magnetic displacement switch faces the large disc of the tail wheel. The bracket is used for bearing the supporting seat, the tail wheel is installed on the supporting seat through the first shaft rod, the other end of the supporting seat is connected with the tail wheel through matching of the second shaft rod in the shaft seat and the flange, no matter what shafts at the two ends are broken, the shafts at the other end can effectively insist in supporting connection, and safety is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine equipment, in particular to a tail shaft breakage protection device for an overhead passenger device. Background Art

[0002] Mine overhead passenger devices are mainly used to assist in transporting workers in underground mines. The wire rope is installed on the driving wheel, rope support wheel, rope pressure wheel, and tail wheel and tightened by the tensioning device. The driving device outputs power to drive the driving wheel and wire rope to operate, thereby realizing the principle of transporting miners. The purpose of using underground mine aerial ropeways to transport miners is to shorten the travel time for miners to go up and down the mine and reduce the physical energy consumption of miners going up and down the mine.

[0003] Among them, the tail wheel shaft bears the weight of the tail wheel longitudinally, and at the same time bears the rotation tension of the wire rope and the tension of the heavy hammer tension laterally. When the driving shaft or tail wheel shaft is aged or subjected to excessive force, it will break, causing the driving wheel or tail wheel to fall, causing a safety accident. At present, the tail wheel shaft mainly adopts the method of hollow shaft with solid shaft to achieve broken shaft protection. The hollow shaft works first, and when the hollow shaft breaks, it is carried by the solid shaft to run. Due to the limited total diameter of the shaft, the shaft wall of the hollow shaft is thinner, and the shaft diameter of the solid shaft is smaller, the bearing capacity is reduced, making the shaft drive shaft more prone to breakage. In addition, traditional travel switches are generally used to identify broken shafts, and the protection action is unreliable and insensitive. It cannot play an effective reminder role when the tail wheel of the overhead passenger device is broken. Therefore, the utility model proposes a broken shaft protection device for the tail shaft of an overhead passenger device to solve the problems existing in the prior art. Utility Model Content

[0004] In response to the above problems, the present utility model proposes a tail shaft breakage protection device for an overhead passenger device. The tail shaft breakage protection device for an overhead passenger device uses a bracket to support a support seat. A tail wheel is mounted on the support seat through a first shaft rod, and the other end is connected to the tail wheel through a second shaft rod in the shaft seat and a flange. Regardless of whether any shaft at either end breaks, the shaft at the other end can effectively maintain the support connection, which is safer.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a tail shaft breakage protection device for an overhead passenger device, comprising a mounting frame and a movable frame, the movable frame being movably arranged below the mounting frame, and a bracket being provided below the movable frame, a support seat being provided at the bottom inside the bracket, and a tail wheel being rotatably provided on the support seat via a first shaft rod, an axle seat being provided at the middle end of the bottom of the movable frame, and a second shaft rod being rotatably provided inside the axle seat, and the lower end of the second shaft rod being connected to the tail wheel via a flange;

[0006] A support rod is provided on one side of the bottom of the movable frame, and the lower end of the support rod is connected to a magnetic displacement switch. The detection end of the magnetic displacement switch faces the large plate of the tail wheel, and the signal output end of the magnetic displacement switch is connected to the control terminal.

[0007] A further improvement is that a mounting seat is provided on one side above the bracket, and the mounting seat is fixed to the movable frame by bolts.

[0008] A further improvement is that a limiting cylinder is provided at the upper end of the tail wheel, and the limiting cylinder is located on the outside of the second shaft rod; a limiting plate is provided at the edge of the bottom of the movable frame, and four groups of limiting plates are provided around the center of the second shaft rod at at least equal angles, and the limiting plates are located on the outside of the limiting cylinder.

[0009] A further improvement is that: the limiting plate is arc-shaped, and a ball is provided on the inner side of the limiting plate for rolling, and the limiting cylinder is supported on the ball.

[0010] A further improvement is that a mounting lug is provided above the mounting frame, and a supporting wheel is rotatably provided at one side of the mounting frame, a steel wire rope is passed around the tail wheel, and the steel wire rope is supported on the supporting wheel.

[0011] A further improvement is that a fixed wheel and a hanging wheel are provided at a position on one side of the mounting frame away from the supporting wheel, and a pulling wheel is rotatably provided on one side of the movable frame.

[0012] A further improvement is that a pulling rope is connected to one side of the fixed wheel, and one end of the pulling rope is passed around the pulling wheel and the hanging wheel and is connected to a heavy hammer.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model utilizes a bracket to carry a support base, and a tail wheel is mounted on the support base through a first shaft rod, and the other end is connected to the tail wheel through a second shaft rod in the shaft seat and a flange. Regardless of whether any shaft at either end is broken, the shaft at the other end can effectively maintain the support connection, which is safer. In addition, a magnetic displacement switch is installed on one side of the tail wheel. The switch is always at the edge of the tail wheel disk and is always in a normally open state. When the tail wheel shaft is broken and the disk position deviates, the normally open point of the switch is closed. In conjunction with the broken shaft fault protection point added in the existing PLC programming, the broken shaft protection can be displayed on the control terminal in the event of a fault, and the reminder is more effective.

[0015] 2. The tail wheel of the utility model is mainly installed with the support seat, which has higher stability than the connection at the other end. In addition to the connection with the second shaft rod, the other end is inserted into the inner side of the limit plate through the limit cylinder, and the rolling support effect of the ball is combined to further improve the stability of the other end, making the two ends more balanced and less likely to break the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is the main view of the utility model;

[0017] Figure 2 This is a schematic diagram of the movable frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the layout of the limiting plate of the present utility model.

[0019] Among them: 1. Mounting frame; 2. Movable frame; 3. Bracket; 4. Support seat; 5. First shaft rod; 6. Tail wheel; 7. Shaft seat; 8. Second shaft rod; 9. Flange; 10. Magnetic displacement switch; 11. Mounting seat; 12. Limit cylinder; 13. Limit plate; 14. Ball; 15. Mounting lug; 16. Support wheel; 17. Wire rope; 18. Fixed wheel; 19. Hanging wheel; 20. Pulling wheel; 21. Pulling rope; 22. Heavy hammer. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0021] Example 1

[0022] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment provides a tail shaft breakage protection device for an aerial passenger device, comprising a mounting frame 1 and a movable frame 2. The movable frame 2 is movably arranged below the mounting frame 1, and a bracket 3 is provided below the movable frame 2. A support seat 4 is provided at the bottom inside the bracket 3, and a tail wheel 6 is rotatably provided on the support seat 4 via a first shaft rod 5. An axle seat 7 is provided at the middle end of the bottom of the movable frame 2, and a second shaft rod 8 is rotatably provided inside the axle seat 7. The lower end of the second shaft rod 8 is connected to the tail wheel 6 via a flange 9.

[0023] A support rod is provided on one side of the bottom of the movable frame 2, and a magnetic displacement switch 10 is connected to the lower end of the support rod. The detection end of the magnetic displacement switch 10 faces the large plate of the tail wheel 6, and the signal output end of the magnetic displacement switch 10 is connected to the control terminal. When in use, the bracket 3 is used to support the support base 4. The tail wheel 6 is mounted on the support base 4 via a first shaft rod 5. The other end is connected to the tail wheel 6 via a second shaft rod 8 in the shaft seat 7 and a flange 9. Regardless of whether any of the two ends of the shaft breaks, the shaft at the other end can effectively maintain the support connection, which is safer. A magnetic displacement switch 10 is installed on one side of the tail wheel. The switch is always at the edge of the large plate of the tail wheel 6. When it is 2mm away from the large plate, the switch is always in a normally open state. When the tail wheel 6 breaks and the large plate position deviates, the normally open point of the switch closes. In conjunction with the broken shaft fault protection point added in the existing PLC programming, the broken shaft protection can be displayed on the control terminal in the event of a fault, which is more effective.

[0024] A mounting seat 11 is provided on one side above the bracket 3, and the mounting seat 11 is fixed to the movable frame 2 by bolts. This facilitates the installation of the bracket 3 and the movable frame 2, thereby facilitating the insertion of the limiting cylinder 12 into the inner position of the limiting plate 13.

[0025] The upper end of the tail wheel 6 is provided with a limiting cylinder 12, and the limiting cylinder 12 is located on the outside of the second shaft 8. A limiting plate 13 is provided at the edge of the bottom of the movable frame 2, and the limiting plates 13 are provided in four groups at least at equal angles around the center of the second shaft 8. The limiting plates 13 are located on the outside of the limiting cylinder 12. The limiting plates 13 are arc-shaped, and a ball 14 is provided on the inner side of the limiting plate 13 for rolling. The limiting cylinder 12 is supported on the ball 14. The tail wheel 6 is mainly installed with the support seat 4, and its stability is higher than the connection at the other end. In addition to the connection with the second shaft 8, the other end is inserted into the inner side of the limiting plate 13 through the limiting cylinder 12, and the rolling support function of the ball 14 further improves the stability of the other end, making the two ends more balanced and less prone to shaft breakage.

[0026] Example 2

[0027] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment provides a tail shaft breakage protection device for an aerial passenger device, comprising a mounting frame 1 and a movable frame 2. The movable frame 2 is movably arranged below the mounting frame 1, and a bracket 3 is provided below the movable frame 2. A support seat 4 is provided at the bottom inside the bracket 3, and a tail wheel 6 is rotatably provided on the support seat 4 via a first shaft rod 5. An axle seat 7 is provided at the middle end of the bottom of the movable frame 2, and a second shaft rod 8 is rotatably provided inside the axle seat 7. The lower end of the second shaft rod 8 is connected to the tail wheel 6 via a flange 9.

[0028] A support rod is provided on one side of the bottom of the movable frame 2, and a magnetic displacement switch 10 is connected to the lower end of the support rod. The detection end of the magnetic displacement switch 10 faces the large plate of the tail wheel 6, and the signal output end of the magnetic displacement switch 10 is connected to the control terminal. When in use, the bracket 3 is used to support the support base 4. The tail wheel 6 is mounted on the support base 4 via a first shaft rod 5. The other end is connected to the tail wheel 6 via a second shaft rod 8 in the shaft seat 7 and a flange 9. Regardless of whether any of the two ends of the shaft breaks, the shaft at the other end can effectively maintain the support connection, which is safer. A magnetic displacement switch 10 is installed on one side of the tail wheel. The switch is always at the edge of the large plate of the tail wheel 6. When it is 2mm away from the large plate, the switch is always in a normally open state. When the tail wheel 6 breaks and the large plate position deviates, the normally open point of the switch closes. In conjunction with the broken shaft fault protection point added in the existing PLC programming, the broken shaft protection can be displayed on the control terminal in the event of a fault, which is more effective.

[0029] A mounting seat 11 is provided on one side above the bracket 3, and the mounting seat 11 is fixed to the movable frame 2 by bolts. This facilitates the installation of the bracket 3 and the movable frame 2, thereby facilitating the insertion of the limiting cylinder 12 into the inner position of the limiting plate 13.

[0030] A mounting lug 15 is provided above the mounting frame 1 for suspending and fixing the mounting frame 1. A supporting wheel 16 is rotatably provided on one side of the mounting frame 1. A wire rope 17 is passed around the tail wheel 6, and the wire rope 17 is supported on the supporting wheel 16. A fixed wheel 18 and a hanging wheel 19 are provided on the side of the mounting frame 1 away from the supporting wheel 16. A pulling wheel 20 is rotatably provided on one side of the movable frame 2. A pulling rope 21 is connected to one side of the fixed wheel 18, and one end of the pulling rope 21 passes around the pulling wheel 20 and the hanging wheel 19 and is connected to a weight 22. During use, the weight 22 tightens the pulling rope 21, and the pulling rope 21 tightens the pulling wheel 20, causing the movable frame 2 to move and tighten under the mounting frame 1, and the tail wheel 6 tightens the wire rope.

[0031] When the tail wheel 6 breaks, the shaft is clamped on the other end by the second shaft 8, and the shaft is fixed on the other end by the second shaft 8 in the shaft seat 7. When the tail wheel 6 breaks, the shaft is fixed on the other end by the second shaft 8 and the flange 9. When the tail wheel 6 breaks, the shaft is fixed on the other end by the second shaft 8 and the flange 9. When the tail wheel 6 breaks, the shaft is fixed on the other end by the second shaft 8. When the tail wheel 6 breaks, the shaft is fixed on the other end by the second shaft 8 and the flange 9. When the tail wheel 6 breaks, the shaft is fixed on the other end by the second shaft 8. When the tail wheel 6 breaks, the shaft is fixed on the other end by the second shaft 8. When the tail wheel 6 breaks, the shaft is fixed on the other end by the second shaft 8.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A tail shaft breakage protection device for an overhead passenger device, comprising a mounting frame (1) and a movable frame (2), characterized in that: The movable frame (2) is movably arranged below the mounting frame (1), and a bracket (3) is provided below the movable frame (2), a support seat (4) is provided at the bottom inside the bracket (3), and a tail wheel (6) is provided on the support seat (4) for rotation via a first shaft (5), an axle seat (7) is provided at the middle end of the bottom of the movable frame (2), and a second shaft (8) is provided inside the shaft seat (7) for rotation, and the lower end of the second shaft (8) is connected to the tail wheel (6) via a flange (9); A support rod is provided on one side of the bottom of the movable frame (2), and a magnetic displacement switch (10) is connected to the lower end of the support rod. The detection end of the magnetic displacement switch (10) faces the large plate of the tail wheel (6), and the signal output end of the magnetic displacement switch (10) is connected to the control terminal.

2. The tail shaft breakage protection device for an overhead passenger vehicle according to claim 1, characterized in that: A mounting seat (11) is provided on one side above the bracket (3), and the mounting seat (11) is fixed to the movable frame (2) via bolts.

3. The tail shaft breakage protection device for an overhead passenger vehicle according to claim 1, characterized in that: A limiting cylinder (12) is provided at the upper end of the tail wheel (6), and the limiting cylinder (12) is located outside the second shaft (8). A limiting plate (13) is provided at the edge of the bottom of the movable frame (2), and the limiting plates (13) are provided in four groups at least at equal angles around the center of the second shaft (8). The limiting plates (13) are located outside the limiting cylinder (12).

4. The tail shaft breakage protection device for an aerial passenger vehicle according to claim 3, characterized in that: The limiting plate (13) is arc-shaped, and a ball (14) is provided on the inner side of the limiting plate (13) for rolling, and the limiting cylinder (12) is supported on the ball (14).

5. The tail shaft breakage protection device for an aerial passenger vehicle according to claim 1, characterized in that: A mounting lug (15) is provided above the mounting frame (1), and a supporting wheel (16) is rotatably provided at one side of the mounting frame (1). A steel wire rope (17) is passed around the tail wheel (6), and the steel wire rope (17) is supported on the supporting wheel (16).

6. The tail shaft breakage protection device for an aerial passenger vehicle according to claim 5, characterized in that: A fixed wheel (18) and a hanging wheel (19) are provided at a position on one side of the mounting frame (1) away from the supporting wheel (16), and a pulling wheel (20) is rotatably provided on one side of the movable frame (2).

7. The tail shaft breakage protection device for an aerial passenger vehicle according to claim 6, characterized in that: One side of the fixed wheel (18) is connected to a pulling rope (21), and one end of the pulling rope (21) is passed around the pulling wheel (20) and the hanging wheel (19) and is connected to a heavy hammer (22).

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