Electro-hydraulic control intelligent tensioning device with passive tension releasing function

Abstract

The electro-hydraulic control intelligent tensioning device with the passive tension releasing function comprises a base and a winding mechanism arranged at the top of the base, a traveling vehicle matched with the winding mechanism is arranged on one side of the base, and a fixing frame is fixedly connected to the position, located on one side of the winding mechanism, of the top of the base; and a plunger pump is fixedly mounted at the top of the base and located in the fixing frame. The invention relates to the technical field of belt conveyors. According to the electro-hydraulic control intelligent tensioning device with the passive tension releasing function, the tensioning force on the output torque of the motor is adjusted through the plunger pump, high-speed and low-speed switching of a system speed change gear is achieved, the starting tensioning force and the tensioning force during normal operation of a belt conveyor can be adjusted at will according to needs, and the tensioning force of the belt conveyor can be adjusted at will. And the adhesive tape is ensured to run in an ideal state, the buffer response to the tension change of the adhesive tape is fast, the tension can be well and automatically released, and the occurrence of tape breakage accidents is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyors, in particular to an electro-hydraulic controlled intelligent tensioning device with a passive tension release function. Background Art

[0002] In large and medium-sized coal mines, coal transportation is completed by telescopic belt conveyors. Due to the harsh environment of underground coal mines, the telescopic belt conveyors require different tensions at the drive roller separation point during starting, operation, braking, emergency stop, power failure and other different working conditions. This requires the automatic tensioning device at the drive roller separation point to provide different tensions according to different working conditions.

[0003] The automatic tensioning device currently in use cannot adjust the speed and cannot meet the conveyor's requirements for tension adjustment speed. The tensioning device cannot achieve self-protection and protection of the conveyor in this situation. Therefore, an electro-hydraulic controlled intelligent tensioning device with passive tension release function is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an electro-hydraulic controlled intelligent tensioning device with a passive tension release function, which solves the problem that the speed cannot be adjusted and the requirements of the conveyor on the speed of tension adjustment cannot be met.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electro-hydraulic controlled intelligent tensioning device with a passive tension release function, comprising a base and a winding mechanism arranged on the top of the base, a traveling vehicle adapted to the winding mechanism is arranged on one side of the base, a fixing frame is fixedly connected to the top of the base and located on one side of the winding mechanism, a plunger pump is fixedly installed on the top of the base and located inside the fixing frame, and a power box is fixedly installed on one side of the inner cavity of the fixing frame.

[0006] Preferably, the winding mechanism comprises two support plates, the support plates are fixedly mounted on the top of the base by bolts, and a rotating roller is rotatably connected between the two support plates via an opening.

[0007] Preferably, a winding roller is fixedly connected to the surface of the rotating roller, and a motor is fixedly installed on the top of the base and behind the two winding rollers.

[0008] Preferably, the output shaft of the motor is fixedly connected to a rotating rod via a coupling, and one end of the rotating rod is fixedly mounted to the rear of the rotating roller.

[0009] Preferably, a steel wire rope is fixedly connected to the surface of the winding roller.

[0010] Preferably, one end of the steel wire rope is fixedly connected to one side of the traveling vehicle.

[0011] Preferably, a plurality of pulley seats adapted to the steel wire rope are provided between one side of the base and one side of the traveling vehicle.

[0012] Preferably, a display is fixedly mounted on one side of the fixing frame. Beneficial Effects

[0013] The present invention provides an electro-hydraulic controlled intelligent tensioning device with a passive tension release function. Compared with the existing technology, it has the following beneficial effects: (1) The present invention adjusts the tension on the output torque of the motor through a plunger pump, and the system changes speed gear to achieve fast and slow speed switching. The starting tension and the tension during normal operation of the belt conveyor can be adjusted as needed to ensure that the belt runs in an ideal state. The buffer response to the change of belt tension is fast, and the tension can be automatically released to avoid the occurrence of belt breakage accidents.

[0014] (2) The present invention replaces traditional mining and other small electric tensioning systems to meet the requirements of different working conditions. It has a simple structure, modular design, easy maintenance, remote control function, and improved safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A top view of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the base, winding mechanism, fixing frame, plunger pump, power box and display of the present invention; Figure 3 It is a rear view of the steel wire rope, support plate, winding roller, rotating roller, motor and rotating rod structure of the present invention.

[0016] In the figure: 1. base; 2. winding mechanism; 3. traveling vehicle; 4. fixed frame; 5. plunger pump; 6. power box; 7. wire rope; 8. pulley seat; 9. display; 21. support plate; 22. winding roller; 23. rotating roller; 24. motor; 25. rotating rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] See also Figure 1-3The present invention provides a technical solution: an electro-hydraulic controlled intelligent tensioning device with a passive tension release function, comprising a base 1 and a winding mechanism 2 arranged on the top of the base 1, a traveling vehicle 3 adapted to the winding mechanism 2 is arranged on one side of the base 1, a fixing frame 4 is fixedly connected to the top of the base 1 and located on one side of the winding mechanism 2, a plunger pump 5 is fixedly installed on the top of the base 1 and located inside the fixing frame 4, the plunger pump 5 is electrically connected to a power box 6 and is controlled by a display 9, and a power box 6 is fixedly installed on one side of the inner cavity of the fixing frame 4.

[0019] It should be noted that the plunger pump 5 is used to adjust the tension on the output torque of the motor 24, and the system speed gear can be adjusted in fast and slow speeds to meet different working conditions.

[0020] Furthermore, in order to reel in the wire rope 7, the reeling mechanism 2 includes two support plates 21, the support plates 21 are fixedly installed on the top of the base 1 by bolts, a rotating roller 23 is rotatably connected between the two support plates 21 through an opening, a reeling roller 22 is fixedly connected to the surface of the rotating roller 23, and a motor 24 is fixedly installed on the top of the base 1 and behind the two reeling rollers 22. The motor 24 is a servo motor, which is electrically connected to the power box 6 and controlled by the display 9. The output shaft of the motor 24 is fixedly connected to a rotating rod 25 through a coupling, and one end of the rotating rod 25 is fixedly installed to the rear of the rotating roller 23.

[0021] Furthermore, in order to facilitate pulling the wire rope 7, the surface of the winding roller 22 is fixedly connected with the wire rope 7, one end of the wire rope 7 is fixedly connected to one side of the traveling vehicle 3, and a plurality of pulley seats 8 compatible with the wire rope 7 are arranged between one side of the base 1 and one side of the traveling vehicle 3.

[0022] It should be noted that the pulley seat 8 is installed on the ground by bolts.

[0023] Furthermore, in order to control the plunger pump 5 and the motor 24 , a display 9 is fixedly mounted on one side of the fixing frame 4 .

[0024] When in use, the motor 24 is controlled remotely and intelligently through the PLC. The motor 24 drives the rotating roller 23 to rotate, and the rotating roller 23 drives the winding roller 22 to rotate. The system speed gear is changed through the cooperation of the plunger pump 5 and the motor 24 to achieve fast and slow speed switching to meet the requirements of different working conditions. The winding roller 22 drives the fixed frame 4 to wind, and the wire rope 7 pulls the traveling vehicle 3 to move, so that the traveling vehicle 3 can adjust the tension of the belt.

Claims

1. An electro-hydraulic controlled intelligent tensioning device with a passive tension release function, comprising a base (1) and a winding mechanism (2) arranged on the top of the base (1), characterized in that: A traveling vehicle (3) adapted to the winding mechanism (2) is provided on one side of the base (1); a fixing frame (4) is fixedly connected to the top of the base (1) and located on one side of the winding mechanism (2); a plunger pump (5) is fixedly installed on the top of the base (1) and located inside the fixing frame (4); and a power supply box (6) is fixedly installed on one side of the inner cavity of the fixing frame (4).

2. The electro-hydraulic controlled intelligent tensioning device with passive tension release function according to claim 1, characterized in that: The winding mechanism (2) comprises two support plates (21), the support plates (21) being fixedly mounted on the top of the base (1) by means of bolts, and a rotating roller (23) being rotatably connected between the two support plates (21) via an opening.

3. The electro-hydraulic controlled intelligent tensioning device with passive tension release function according to claim 2, characterized in that: The surface of the rotating roller (23) is fixedly connected to a winding roller (22), and a motor (24) is fixedly installed on the top of the base (1) and behind the two winding rollers (22).

4. The electro-hydraulic controlled intelligent tensioning device with passive tension release function according to claim 3, characterized in that: The output shaft of the motor (24) is fixedly connected to a rotating rod (25) via a coupling, and one end of the rotating rod (25) is fixedly mounted to the rear of the rotating roller (23).

5. The electro-hydraulic controlled intelligent tensioning device with passive tension release function according to claim 3, characterized in that: A steel wire rope (7) is fixedly connected to the surface of the winding roller (22).

6. The electro-hydraulic controlled intelligent tensioning device with passive tension release function according to claim 5, characterized in that: One end of the steel wire rope (7) is fixedly connected to one side of the traveling vehicle (3).

7. The electro-hydraulic controlled intelligent tensioning device with passive tension release function according to claim 5, characterized in that: A plurality of pulley seats (8) adapted to the steel wire rope (7) are arranged between one side of the base (1) and one side of the traveling vehicle (3).

8. The electro-hydraulic controlled intelligent tensioning device with passive tension release function according to claim 1, characterized in that: A display (9) is fixedly mounted on one side of the fixing frame (4).

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