Movable belt line tensioning equipment

Abstract

The utility model discloses movable belt line tensioning equipment, and belongs to the technical field of belt tensioning. The device comprises a frame body, a roller assembly, a hydraulic cylinder, a lifting wheel set and a hydraulic station. The roller assembly is rotationally connected to the top of the frame body. The hydraulic cylinder is arranged in the frame body, and the output end of the hydraulic cylinder is connected to the roller assembly and used for driving the roller assembly to rotate. The lifting wheel set is arranged in the frame body and comprises a lifting hydraulic cylinder and a hub, and the output end of the lifting hydraulic cylinder is connected with the hub and used for driving the hub to stretch out of or retract into the frame body. The hydraulic station is connected with the hydraulic cylinder and the lifting hydraulic cylinder. The position of the roller assembly is adjusted through the hydraulic cylinder, the structure is simple, operation is flexible, and the tensioning device is suitable for tensioning the tail end and the middle position of a belt line; and ground fixing and walking mode switching of the equipment is achieved through the lifting wheel set, and ground movement of the equipment is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of belt tensioning, and particularly relates to a movable belt line tensioning device. BACKGROUND

[0002] Belt conveyors are widely used in coal mines, port transportation, thermal power generation and other fields. The tensioning structure on the belt conveyor is mainly used to adjust the tension of the conveyor belt, ensure the smooth operation of the conveyor belt, and prevent slipping or deviation. The tensioning structure is usually located at the tail end of the belt conveyor. By the rapid extension and contraction of the oil cylinder, the elastic shock of the conveyor belt is compensated in time, and the dynamic tensioning of the belt conveyor is effectively realized, thereby reducing the impact dynamic load of the belt conveyor during startup, and effectively avoiding the over-tensioning phenomenon of the tensioning device on the conveyor belt. The tensioning structure can control the tension of the conveyor belt to ensure smooth operation. The tensioning structure can prevent the conveyor belt from being too loose or too tight, which can cause the conveyor belt to be damaged or the conveying efficiency to be reduced.

[0003] However, when the conveyor belt is too loose or too tight and needs to be adjusted, the conveyor belt is not easy to control during adjustment, and there is a risk of falling off the roller. Once the conveyor belt falls off or the position deviates greatly, it will affect the normal operation of the conveyor belt. The entire process requires manual attention to the position of the conveyor belt and timely adjustment, which will occupy certain human resources. The tensioning device is relatively bulky and is usually installed at the tail end of the belt line. The tensioning effect is limited, and it cannot be easily moved to the natural drop low point position of the belt line, which is not convenient to use. SUMMARY

[0004] The utility model aims at overcoming the insufficient in prior art, provide a movable belt line tensioning device, simple structure, flexible operation, be suitable for the tensioning of belt line end and intermediate position.

[0005] The utility model provides the following technical scheme:

[0006] A movable belt line tensioning device, including frame main part, roller subassembly, hydraulic cylinder, lifting wheel group and hydraulic station, roller subassembly rotation is connected in the top of frame main part, hydraulic cylinder is located in the inside of frame main part, and its output end is connected to roller subassembly and is used to drive roller subassembly rotation, lifting wheel group is located in the inside of frame main part and includes lifting hydraulic cylinder and wheel hub, the output end of lifting hydraulic cylinder is connected wheel hub and is used to drive wheel hub to stretch out or retract frame main part, hydraulic station connects hydraulic cylinder and lifting hydraulic cylinder.

[0007] As an optional technical scheme of the utility model, the roller subassembly includes a roller and a roller bracket, one end of the roller bracket is rotatably connected to the top of the frame main body, and the roller is rotatably connected to the other end of the roller bracket.

[0008] As an optional technical scheme of the utility model, the roller adopts a middle convex rotary body.

[0009] As an optional technical scheme of the utility model, the output end of the hydraulic cylinder is connected to one end of the roller support away from the frame body through a hinge; the other end of the hydraulic cylinder is connected to the bottom of the frame body through a hinge.

[0010] As an optional technical scheme of the utility model, the top of the frame body near the roller is provided with a rubber pad for buffering.

[0011] As an optional technical scheme of the utility model, the lifting wheel set further comprises a fixing plate, a wheel hub motor, a slide rail and a wheel hub speed reducer; the fixing plate is fixed on the frame body, and the lifting hydraulic cylinder is installed on the fixing plate; the wheel hub motor, the wheel hub speed reducer and the wheel hub are sequentially connected, and the output end of the lifting hydraulic cylinder is connected to the wheel hub motor; the slide rail is arranged at the bottom of the fixing plate, and the wheel hub motor is slidably connected to the slide rail and is lifted and lowered through the slide rail under the drive of the lifting hydraulic cylinder.

[0012] As an optional technical scheme of the utility model, the lifting wheel set is arranged on both sides of the frame body.

[0013] As an optional technical scheme of the utility model, the utility model further comprises a control unit connected to the hydraulic station and used for controlling the extension and retraction of the lifting hydraulic cylinder and the hydraulic cylinder.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The movable belt line tensioning equipment provided by the utility model adopts a hydraulic cylinder to adjust the position of a roller assembly, has simple structure and flexible operation, avoids belt shedding or displacement, is suitable for belt line end and intermediate position tensioning, realizes ground fixation and walking mode switching of the equipment through a lifting wheel set, and facilitates ground movement of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the belt line tensioning equipment of the utility model embodiment;

[0017] Figure 2 is a structural schematic view of the lifting wheel set in the utility model embodiment;

[0018] Figure 3 is a working state schematic view of the belt line tensioning equipment in the utility model embodiment;

[0019] Figure 4 is a moving state schematic view of the belt line tensioning equipment in the utility model embodiment.

[0020] The following are marked in the diagram: 1. Roller; 2. Roller support; 3. Frame body; 4. Hydraulic station; 5. Lifting wheel assembly; 6. Hydraulic cylinder; 7. Control unit; 5-1. Lifting hydraulic cylinder; 5-2. Fixing plate; 5-3. Hub motor; 5-4. Slide rail; 5-5. Hub reducer; 5-6. Hub. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0022] Example 1

[0023] This embodiment provides a movable belt tensioning device, such as... Figure 1 As shown, it includes a frame body 3, a roller assembly, a hydraulic cylinder 6, a lifting wheel assembly 5, a hydraulic station 4, and a control unit 7.

[0024] The roller assembly is rotatably connected to the top of the frame body 3; the hydraulic cylinder 6 is located inside the frame body 3, and its output end is connected to the roller assembly to drive the roller assembly to rotate.

[0025] like Figure 2 As shown, the lifting wheel assembly 5 is located inside the frame body 3 and includes a lifting hydraulic cylinder 5-1 and a wheel hub 5-6. The output end of the lifting hydraulic cylinder 5-1 is connected to the wheel hub 5-6 and is used to drive the wheel hub 5-6 to extend or retract from the frame body 3.

[0026] The hydraulic station 4 is connected to the hydraulic cylinder 6 and the lifting hydraulic cylinder 5-1.

[0027] The control unit 7 is connected to the hydraulic station 4 and is used to control the extension and retraction of the lifting hydraulic cylinders 5-1 and 6.

[0028] Working principle:

[0029] Switch to the working state via control unit 7, such as Figure 3 As shown, at this time, the lifting hydraulic cylinder 5-1 is in the retracted state, and the hydraulic cylinder 6 extends, driving the roller assembly to rotate to tension the belt.

[0030] Switching to mobile mode via control unit 7, such as Figure 4 As shown, at this time, hydraulic cylinder 6 retracts, and lifting hydraulic cylinder 5-1 is in the extended state, driving wheel hub 5-6 to extend out of frame body 3, so that the whole equipment can be moved through wheel hub 5-6.

[0031] Example 2

[0032] like Figure 1 andFigure 2 As shown, on the basis of embodiment 1, four corners of the frame body 3 are reserved with anchor bolts for fixing in the working state.

[0033] The roller assembly comprises a roller 1 and a roller support 2. One end of the roller support 2 is rotatably connected to the top of the frame body 3, and the roller 1 is rotatably connected to the other end of the roller support 2. In this embodiment, the roller 1 and the roller support 2 are connected and supported by bearings, so that the roller 1 can rotate without resistance. The hydraulic cylinder 6 can be extended or retracted according to the working condition during work, so as to adjust the height of the roller 1 and further adjust the tension of the belt line.

[0034] The roller 1 adopts a rotary body with a protrusion in the middle, which can prevent the belt line from deviating when in contact with the belt line.

[0035] The output end of the hydraulic cylinder 6 is connected to the end of the roller support 2 away from the frame body 3 through a hinge. The other end of the hydraulic cylinder 6 is connected to the bottom of the frame body 3 through a hinge. The top of the frame body 3 is provided with a rubber pad on the side close to the roller 1 for buffering, so as to prevent the roller 1 from falling and colliding violently.

[0036] In this embodiment, the lifting wheel set 5 is provided with four sets, which are arranged on both sides inside the frame body 3. The lifting wheel set 5 further comprises a fixed plate 5-2, a wheel hub motor 5-3, a slide rail 5-4 and a wheel hub reducer 5-5. The fixed plate 5-2 is fixed to the frame body 3, and the lifting hydraulic cylinder 5-1 is installed on the fixed plate 5-2; the wheel hub motor 5-3, the wheel hub reducer 5-5 and the wheel hub 5-6 are connected in sequence, and the output end of the lifting hydraulic cylinder 5-1 is connected to the wheel hub motor 5-3; the slide rail 5-4 is arranged at the bottom of the fixed plate 5-2, and the wheel hub motor 5-3 is slidably connected to the slide rail 5-4 and lifted through the slide rail 5-4 under the drive of the lifting hydraulic cylinder 5-1.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0038] In the description of the utility model, it needs to explain, unless another explicit stipulation and limit, term " install " " link " " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electric connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element inside intercommunication, for ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model through specific circumstances.

[0039] The above only is the preferred implementation way of the utility model, it should point out, for ordinary skilled person in the art, on the premise of not departing from the technical principle of the utility model, can also make several improvements and deformation, these improvements and deformation also should view as the protection range of the utility model.

Claims

1. A mobile belt line tensioning apparatus, characterized by: Frame body (3), roller assembly, hydraulic cylinder (6), lifting wheel group (5) and hydraulic station (4) are included. The roller assembly is rotatably connected to the top of the frame body (3). The hydraulic cylinder (6) is arranged inside the frame body (3), and the output end thereof is connected to the roller assembly for driving the roller assembly to rotate. The lifting wheel group (5) is arranged inside the frame body (3) and includes a lifting hydraulic cylinder (5-1) and a wheel hub (5-6), the output end of the lifting hydraulic cylinder (5-1) is connected to the wheel hub (5-6) for driving the wheel hub (5-6) to extend out of or retract into the frame body (3). The hydraulic station (4) is connected to the hydraulic cylinder (6) and the lifting hydraulic cylinder (5-1).

2. The mobile belt line tensioning apparatus of claim 1, wherein: The roller assembly includes a roller (1) and a roller support (2). One end of the roller support (2) is rotatably connected to the top of the frame body (3), and the roller (1) is rotatably connected to the other end of the roller support (2).

3. The mobile belt line tensioning apparatus of claim 2, wherein: The roller (1) is a rotary body with a protrusion in the middle.

4. The mobile belt line tensioning apparatus of claim 2, wherein: The output end of the hydraulic cylinder (6) is connected to one end of the roller support (2) away from the frame body (3) through a hinge. The other end of the hydraulic cylinder (6) is connected to the bottom of the frame body (3) through a hinge.

5. The mobile belt line tensioning apparatus of claim 2, wherein: A rubber pad for buffering is arranged on the top of the frame body (3) near one side of the roller (1).

6. The mobile belt line tensioning apparatus of claim 1, wherein: The lifting wheel group (5) further includes a fixed plate (5-2), a wheel hub motor (5-3), a slide rail (5-4) and a wheel hub reducer (5-5). The fixed plate (5-2) is fixed to the frame body (3), and the lifting hydraulic cylinder (5-1) is mounted on the fixed plate (5-2). The wheel hub motor (5-3), the wheel hub reducer (5-5) and the wheel hub (5-6) are connected in sequence, and the output end of the lifting hydraulic cylinder (5-1) is connected to the wheel hub motor (5-3). The slide rail (5-4) is arranged at the bottom of the fixed plate (5-2), the wheel hub motor (5-3) is slidably connected to the slide rail (5-4), and is lifted and lowered through the slide rail (5-4) under the drive of the lifting hydraulic cylinder (5-1).

7. The mobile belt line tensioning apparatus of claim 1, wherein: The lifting wheel group (5) is arranged on both sides of the frame body (3).

8. The mobile belt line tensioning apparatus of claim 1, wherein: A control unit (7) is further included, which is connected to the hydraulic station (4) for controlling the extension and retraction of the lifting hydraulic cylinder (5-1) and the hydraulic cylinder (6).

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