Tripper car belt replacing device for equipment with tripper car system

Abstract

The utility model relates to a tripper car belt replacing device for equipment with a tripper car system, which comprises a belt replacing mechanism and a belt winding drum mechanism, the belt winding drum mechanism is arranged above the belt replacing mechanism, the belt replacing mechanism comprises two stand columns, a bottom plate, a pressing plate and a control mechanism, the bottom plate is horizontally welded between the two stand columns, and the pressing plate is arranged above the two stand columns. The pressing plate is arranged over the bottom plate, guide grooves are formed in the inner sides of the two stand columns, and the two ends of the pressing plate are arranged in the guide grooves. The control mechanism comprises a photoelectric sensor, an electric hydraulic pusher and a mounting base, the mounting base is welded to the bottom plate, and the electric hydraulic pusher is fixed to the mounting base through bolts. A lifting lug is arranged on the pressing plate, a pin is arranged on the electric hydraulic thruster, and the pin of the electric hydraulic thruster is connected with the lifting lug on the pressing plate through a connecting rod. According to the design, the tail car belt replacement efficiency can be improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of professional replacement of belts of tail car systems of large loading and unloading equipment, in particular to a tail car belt replacement device for equipment with a tail car system. Background Art

[0002] The tail truck system is a component of large-scale loading and unloading equipment. Essentially, it's a sloped belt conveyor that transports material from the ground conveyor upward to the central hopper of the loading and unloading equipment. When replacing the belt on a sloped belt conveyor, it's usually done at the tail end, lower to the ground, for safety reasons.

[0003] Tail car belt replacement process: First, cut the old belt from the selected vulcanization position, then remove the surrounding belt conveyor brackets, install the new belt together with the belt reel frame on the tail car belt conveyor beam, and fix the new belt joint to the old joint near the tail. Then, the tractor drags another old belt joint, and the new belt runs through the entire tail car system under the traction of the old belt. However, because the tail car is on a slope and the belt reel has inertia, when the last section of the new belt falls off the belt reel, it will continue to slide down along the belt bracket and roller, and then slide under the small tail car belt hopper and fall to the ground, causing the belt to pile up. Because the belt is wide and heavy, and the space is limited, and when it passes back under the hopper, the hopper coal baffle is a major obstacle, making the entire belt re-passing process difficult to operate, labor-intensive, and highly dangerous.

[0004] Therefore, in order to solve the above problems, the utility model provides a tail car belt replacement device for a tail car system device. Summary of the Invention

[0005] The utility model aims to solve the problem of the existing belt sliding off the ground and proposes a tail car belt replacement device for tail car system equipment.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a tail car belt replacement device for a tail car system, characterized by comprising a belt replacement mechanism and a belt reel mechanism, the belt reel mechanism being disposed above the belt replacement mechanism. The belt replacement mechanism comprises two columns, a base plate, a pressure plate, and a control mechanism. The base plate is horizontally welded between the two columns, the pressure plate is disposed directly above the base plate, the inner sides of the two columns are provided with guide grooves, the ends of the pressure plate are disposed within the guide grooves, and a tail car belt channel is formed between the base plate and the pressure plate. The control mechanism comprises a photoelectric sensor, an electro-hydraulic actuator, and a mounting base. The mounting base is welded to the base plate, and the electro-hydraulic actuator is fixed to the mounting base by bolts. The pressure plate is provided with a lifting lug, and the electro-hydraulic actuator is provided with a pin. The pin on the electro-hydraulic actuator is connected to the lifting lug on the pressure plate by a connecting rod.

[0007] As a further solution of the present invention: two mounting bases and two electric hydraulic pushers are respectively provided, which are respectively arranged at the two ends of the base plate.

[0008] As a further embodiment of the present invention, mounting ears are provided at the base of the two uprights for secure installation, each equipped with a bolt hole. The belt changing mechanism is secured to the belt beam of the tailcar system via the bolt holes at the base of the uprights. The mounting ears allow the changing mechanism to be secured to the tailcar system.

[0009] As a further solution of the present invention: the belt reel mechanism includes a belt reel frame arranged on the belt crossbeam, and the belt reel is installed on the belt reel frame.

[0010] As a further embodiment of the present invention, the photoelectric sensor is mounted between the belt changing mechanism and the belt reel mechanism. The photoelectric sensor comprises a receiver and a transmitter, each mounted on the upper and lower sides of the belt via mounting brackets. By combining the photoelectric sensor with an electric hydraulic actuator, an automatic clamping mechanism is activated to secure the belt when the last section of new belt on the belt reel reaches the predetermined vulcanization position, preventing it from sliding further along the conveyor rollers and onto the ground.

[0011] The selection of the electric hydraulic pusher model is crucial for this device. The main thing is to determine the thrust of each electric hydraulic pusher. The tail belt that does not touch the ground is simplified as a whole and subjected to mechanical analysis:

[0012] Where 15° is the angle between the tail car conveyor and the ground, and G is the gravity acting on this section of the belt:

[0013] G=mg

[0014] Where m is the mass of the belt section, which is approximately 150 kg, and g is 9.8 N / kg.

[0015] That is, the gravity acting on this section of the belt is 1470N.

[0016] 2F 压 The thrust is provided by two electro-hydraulic thrusters, which are perpendicular to the belt direction.

[0017]

[0018] Take a single connecting rod as the object for mechanical analysis, F 推 The thrust provided by a single electric hydraulic thruster can be known from the mechanical balance:

[0019] F 压 =F 推

[0020] f is the friction force on that section of the belt, which is related to the pressure applied and the coefficient of kinetic friction between the belt and the rollers. The pressure applied is related to its own weight and the thrust provided by the electric hydraulic thruster. The weight is decomposed into the direction along the belt and perpendicular to the belt. The force applied to the entire belt section is shown in the following figure:

[0021]

[0022] F1=Gcos15°

[0023] F2=Gsin15°

[0024] f=μ(F1+2F 压 )

[0025] Wherein, μ is the coefficient of kinetic friction between the belt and the roller 6, which is 0.1.

[0026] For the entire belt to be clamped, the following conditions must be met:

[0027] f≥F2

[0028] Substituting the above formula into the equation, we can get:

[0029] F 推 ≥1192N

[0030] That is, choosing an electric hydraulic pusher with a thrust greater than 1192N can meet the use requirements.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] By using a photoelectric sensor in conjunction with an electric hydraulic actuator, when the last section of new belt on the belt reel reaches the predetermined vulcanization position, the automatic clamping mechanism can be controlled to secure the belt, preventing it from sliding further along the conveyor rollers and onto the ground. This prevents belt accumulation and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of the tail car system equipment of the utility model;

[0034] Figure 2 This is a schematic structural diagram of the tail car belt replacement device of the utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the belt replacement mechanism of the utility model;

[0036] Description of labels:

[0037] 1. Tail car system; 2. Belt reel; 3. Clamping device; 4. Hopper; 5. Coal baffle; 6. Roller; 7. Tail car belt; 8. Photoelectric sensor 9. Belt reel frame; 10. Belt conveyor beam; 11. Pressure plate; 12. Bottom plate; 13. Guide groove; 14. Lifting ear; 15. Connecting rod; 16. Pin; 17. Electric hydraulic pusher; 18. Mounting base; 19. Column; 20. Mounting ear. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Please see the attached Figure 1-3A tail car belt replacement device for a tail car system includes a belt replacement mechanism and a belt reel mechanism. The belt reel mechanism is located above the belt replacement mechanism. The belt replacement mechanism includes two columns 19, a base plate 12, a pressure plate 11, and a control mechanism. The base plate 12 is horizontally welded between the two columns 19. The pressure plate 11 is located directly above the base plate 12. Guide grooves 13 are provided on the inner sides of the two columns 19. The ends of the pressure plate 11 are located within the guide grooves 13. The base plate 12 and the pressure plate 11 form a passage for the tail car belt 7. The control mechanism includes a photoelectric sensor 8, an electric hydraulic actuator 17, and a mounting base 18. The mounting base 18 is welded to the base plate 12. The electric hydraulic actuator 17 is fixed to the mounting base 18 by bolts. There are two mounting bases 18 and two electric hydraulic actuators 17, respectively, located at the two ends of the base plate 12. The pressing plate 11 is provided with a lifting lug 14 , and the electric hydraulic pusher 17 is provided with a pin 16 . The pin 16 on the electric hydraulic pusher 17 is connected to the lifting lug 14 on the pressing plate 11 via a connecting rod 15 .

[0040] Mounting ears 20 are provided at the bottoms of the two uprights 19 for secure installation. These ears are provided with bolt holes. The belt changing mechanism is secured to the belt beam of the tail car system 1 via the bolt holes at the bottoms of the uprights 19. The mounting ears 20 secure the changing mechanism to the tail car system 1.

[0041] The belt reel mechanism comprises a belt reel frame 9 arranged on the belt crossbeam, and the belt reel 2 is mounted on the belt reel frame 9.

[0042] The photoelectric sensor 8 is installed between the belt replacement mechanism and the belt reel mechanism. It includes a receiver and a transmitter, each mounted on the upper and lower sides of the belt via mounting brackets. By combining the photoelectric sensor 8 with the electric hydraulic actuator 17, when the last section of new belt on the belt reel 2 reaches the predetermined vulcanization position, the automatic clamping mechanism is activated to secure the belt, preventing it from sliding further along the conveyor rollers 6 and onto the ground.

[0043] When the belt needs to be replaced, the device and belt reel frame 9 are first bolted to the tail car belt conveyor crossbeam. The photoelectric sensor 8 is installed between the two, 30 cm away from the device. One end of the new belt is passed through the tail car belt 7 channel area between the pressure plate 11 and the base plate 12. The new belt and the old belt joint are then connected using rake nails. The tractor drags the old belt to make the new belt pass through the tail car system 1. When a small amount of new belt remains on the belt reel frame 9, the tractor stops dragging. The remaining new belt continues to slide down along the belt conveyor roller 6 due to inertia. When its tail has completely passed the photoelectric sensor 8, the control system triggers the electric hydraulic pusher 17 to operate, thereby tightly clamping the tail of the new belt between the pressure plate 11 and the base plate 12, effectively preventing the belt from continuing to slide down along the roller 6 due to gravity and inertia.

Claims

1. A tail car belt replacement device for a tail car system, characterized by: The invention comprises a belt replacement mechanism and a belt reel mechanism, wherein the belt reel mechanism is arranged above the belt replacement mechanism, and the belt replacement mechanism comprises two columns (19), a bottom plate (12), a pressure plate (11) and a control mechanism, wherein the bottom plate (12) is horizontally welded between the two columns (19), the pressure plate (11) is arranged just above the bottom plate (12), the inner sides of the two columns (19) are provided with guide grooves (13), the two ends of the pressure plate (11) are arranged in the guide grooves (13), and the tail car skin is located between the bottom plate (12) and the pressure plate (11). The belt (7) channel; the control mechanism includes a photoelectric sensor (8), an electric hydraulic pusher (17) and a mounting base (18), the mounting base (18) is welded to the base plate (12), and the electric hydraulic pusher (17) is fixed to the mounting base (18) by bolts; the pressure plate (11) is provided with a lifting ear (14), the electric hydraulic pusher (17) is provided with a column pin (16), and the column pin (16) on the electric hydraulic pusher (17) is connected to the lifting ear (14) on the pressure plate (11) by setting a connecting rod (15).

2. The tail car belt replacement device for a tail car system according to claim 1, characterized in that: The mounting base (18) and the electric hydraulic pusher (17) are each provided with two, and are respectively arranged at the two ends of the base plate (12).

3. The tail car belt replacement device for a tail car system according to claim 1, characterized in that: The bottoms of the two upright posts (19) are provided with mounting ears (20) for fixed installation, and the mounting ears (20) are provided with bolt holes.

4. The tail car belt replacement device for a tail car system according to claim 3, characterized in that: The belt replacement mechanism is fixed to the belt conveyor crossbeam (10) of the tail car system (1) through the bolt holes at the bottom of the column.

5. The tail car belt replacement device for a tail car system according to claim 4, characterized in that: The belt reel mechanism comprises a belt reel frame (9) arranged on a belt crossbeam, and a belt reel (2) is mounted on the belt reel frame (9).

6. The tail car belt replacement device for a tail car system according to claim 5, characterized in that: The photoelectric sensor (8) is installed between the belt replacement mechanism and the belt reel mechanism. The photoelectric sensor (8) comprises a receiver and a transmitter. The receiver and the transmitter are respectively installed above and below the belt via mounting brackets.

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