A lifting self-locking device for replacing a roll

Abstract

The utility model belongs to belt conveyor maintenance equipment technical field especially relates to a lifting type self -locking type device for replacing coiled material, including support structure, support axle, rotation axis, and support axle both ends are supported by support structure, and support structure includes fixed bolster, support frame, and fixed bolster top is connected with support frame, and the top of support frame is equipped with recess, and the both sides of recess are connected with rotation axis, are equipped with a plurality of pin holes in fixed bolster lengthwise, and fixed bolster is connected through pin shaft with support frame. Advantages are: the utility model simple and reasonable structure, the finished product is low, saves the belt putting time and manpower, reduces the danger. The device passes through the design of support structure and rotation axis, avoids manual handling of the belt roll, reduces the operation risk, reduces the traction resistance. Set the top silk to adjust the rotation rate of rotation axis, even can realize the locking of rotation axis, can prevent the belt roll from accidental sliding in the traction process.

Description

Technical Field

[0001] This utility model belongs to the technical field of belt conveyor maintenance equipment, and in particular relates to a lifting self-locking device for replacing roll material. Background Technology

[0002] Belt conveyors are a commonly used material transportation equipment in mines. Due to the long-term operation of belt conveyors and the wear and tear of materials on the belt surface, damage to the belt is inevitable. When the belt reaches the end of its service life, in order to avoid affecting production and avoid safety hazards, the belt on the belt conveyor must be replaced at regular intervals.

[0003] Currently, belt replacement for conveyor belts is mostly done manually. This involves using a forklift to lift the belt, threading a shaft through the center of the belt roll, and then manually pulling the belt down. This method is not only labor-intensive but also inefficient. It also leads to prolonged downtime, wasting manpower and resources. This is especially true for large conveyor systems, where the time required for maintenance and belt replacement is further extended, and prolonged downtime disrupts normal production. Furthermore, belt replacement is a relatively dangerous task, and manually releasing the belt increases the risk of accidents. For heavy-duty belts (e.g., 10-ton belts) or large-diameter belt rolls (up to 3 meters), existing belt replacement methods are unsuitable. Summary of the Invention

[0004] The purpose of this invention is to provide a lifting and self-locking device for changing roll materials, which reduces manual operation, improves belt replacement efficiency, and reduces the danger of belt replacement operations and the risk of safety accidents.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A lifting self-locking device for replacing roll material includes a support structure, a support shaft, and a rotating shaft. The support shaft is supported at both ends by the support structure. The support structure includes a fixed bracket and a support frame. The top of the fixed bracket is connected to the support frame. The top of the support frame is provided with a groove, and the rotating shaft is connected to both sides of the groove. The fixed bracket is provided with several pin holes longitudinally, and the fixed bracket and the support frame are connected by pins.

[0007] The support frame is threaded with a set screw, the end of which can abut against the rotating shaft.

[0008] Nuts are welded onto the support frame, and set screws are connected to the nuts.

[0009] The rotating shaft is rotatably connected to the support frame.

[0010] The rotating shaft is connected to the support frame via bearings.

[0011] The support shaft is supported by a rotating shaft.

[0012] The fixed bracket includes a base, a support rod, and a reinforcing rod. The bottom end of the support rod is fixedly connected to the base, and the top end is connected to the support frame. The support rod is connected to several reinforcing rods, with one end of the reinforcing rod fixedly connected to the support rod and the other end fixedly connected to the base.

[0013] The base is a quadrilateral or circular structure.

[0014] The base is equipped with casters at its bottom.

[0015] The top of the support frame is connected to a limit stop.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model has a simple and reasonable structure, low manufacturing cost, saves time and manpower for laying belts, and reduces risks. Through the design of the support structure and rotating shaft, this device avoids manual handling of the belt roll, reducing operational risks.

[0018] 2. This utility model reduces traction resistance: By installing two rotating shafts at the center of the support shaft, the support shaft can rotate easily, and the traction resistance is significantly reduced.

[0019] 3. This utility model can adjust the height through the pin shaft, and can adjust the height according to the diameter of the roll material, adapting to roll materials of different diameters. The maximum load capacity can reach 10 tons. Moreover, the operation is simple and convenient, shortening the working time and greatly reducing the time required to replace belts or lay out lines.

[0020] 4. The support structure of this utility model is equipped with running wheels at the bottom, which makes the whole device movable, convenient for on-site use, and not limited by space.

[0021] 5. This utility model connects a top screw to the support frame, which facilitates the adjustment of the rotation speed of the rotating shaft and can even lock the rotating shaft, preventing the belt roll from slipping accidentally during traction and ensuring the safety of the operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is the front view of the supporting structure.

[0024] Figure 3 This is a top view of the supporting structure.

[0025] Figure 4 This is a connection diagram of the support frame.

[0026] In the diagram: 1-Fixed bracket 2-Support frame 3-Groove 4-Rotating shaft 5-Support shaft 6-Top screw 7-Nut 8-Limit stop 9-Belt roll 11-Base 12-Support rod 13-Reinforcing rod 14-Pin hole. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings. However, it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0028] See Figures 1-4 A lifting, self-locking device for replacing roll material includes a support structure, a support shaft 5, and a rotating shaft 4. The support shaft 5 is supported at both ends by the support structure. The support structure includes a fixed bracket 1 and a support frame 2. The top of the fixed bracket 1 is connected to the support frame 2. The top of the support frame 2 has a groove 3, and rotating shafts 4 are connected to both sides of the groove 3. The rotating shafts 4 are arranged parallel to each other, with a certain distance between them to facilitate support of the support shaft 5. The fixed bracket 1 has several pin holes 14 arranged longitudinally. The support frame 2 is sleeved on the fixed bracket 1, and the fixed bracket 1 and the support frame 2 are connected by pins. The pin holes 14 can be divided into multiple groups along the longitudinal direction, with at least two in each group.

[0029] The support frame 2 is threaded with a set screw 6. When the set screw 6 is rotated, its end can abut against the rotating shaft 4. To increase the connection strength of the set screw 6, a nut 7 is welded to the support frame 2, and the set screw 6 is connected to the nut 7.

[0030] Rotating shaft 4 is rotatably connected to support frame 2. Rotating shaft 4 is a straight rod structure, connected to support frame 2 via bearings, allowing for more flexible rotation. Rotating shaft 4 can consist of two parts: a central shaft and a rotating shaft rotatably sleeved outside the central shaft. Both ends of the central shaft are fixedly connected to support frame 2. The rotating shaft is a sleeve structure or a bearing structure. Support shaft 5 is placed within groove 3 of support frame 2. Support shaft 5 is supported by rotating shaft 4 and rotatably contacts both rotating shafts 4. Support shaft 5 rotates under the action of rotating shaft 4, allowing for easy rotation and reducing rotational resistance. Groove 3 is a U-shaped groove (see...). Figure 4 (or semi-circular groove).

[0031] The fixed bracket 1 is formed by welding profiles and includes a base 11, a support rod 12, and reinforcing rods 13. The bottom end of the support rod 12 is fixedly connected to the base 11, and the top end is connected to the support frame 2. The support rod 12 is connected to several reinforcing rods 13, with one end of each reinforcing rod fixedly connected to the support rod 12 and the other end fixedly connected to the base 11. At least three reinforcing rods 13 are provided, connected to three sides of the support rod 12: the outer side of the support rod 12 away from the belt roll 9, and the front and rear sides of the support rod 12. The surfaces of the front and rear reinforcing rods 13 are spaced apart from the sides of the belt roll 9. The surfaces of the front and rear reinforcing rods 13 are parallel to or at an angle to the sides of the belt roll 9. When parallel, the surfaces of the front and rear reinforcing rods 13 are perpendicular to the support shaft 5; when at an angle, the front and rear reinforcing rods 13 are inclined away from the belt roll 9. The support rod 12, reinforcing rods 13, and base 11 form a stable triangular support structure. The base 11, support rod 12, and reinforcing rods 13 can be made of channel steel. The base 11 can be a quadrilateral or circular structure, or other stable structures. Casters are connected to the bottom of the base 11, enabling the movement of the entire device. The casters can be installed at the four corners of the quadrilateral base 11.

[0032] The top of the support frame 2 is connected to a limit stop 8, which is an arc-shaped structure. Both ends are fixed to the top of the support frame 2 by bolts to prevent the support shaft 5 from detaching from the support frame 2 in extreme cases, thereby improving the safety of belt replacement operations.

[0033] The on-site support shaft 5 can be made from scrap drill rods, reducing raw material costs.

[0034] In use, move the device next to the belt conveyor and adjust the distance between the two support structures to the width of the belt roll 9. Raise the support frame 2 using a hydraulic or screw lifting mechanism until its height is higher than the diameter of the belt roll 9. Insert the pin into the pin hole 14 at the corresponding position to connect the fixed bracket 1 and the support frame 2. Insert the support shaft 5 into the center of the belt roll 9, with both ends placed in the grooves 3, supported by the rotating shaft 4. Loosen the set screw 6 to allow the rotating shaft 4 to rotate freely, pulling the end of the belt to the belt conveyor. After traction is complete, tighten the set screw 6 to secure the remaining roll material. Using a scrap drill rod as the support shaft 5, the device has a simple structure and is not complex to manufacture.

[0035] The lifting self-locking device for changing rolls can be used for belt replacement on conveyors, cable laying support in the field, etc. The top screw 6 design can meet the requirements of rapid rotation or locking of the rotating shaft 4.

[0036] This utility model has a simple and reasonable structure, low manufacturing cost, saves time and manpower for belt placement, and reduces risks. The device, through the design of the support structure and rotating shaft 4, avoids manual handling of the belt roll 9, reducing operational risks. By installing two rotating shafts 4 at the center of the support shaft 5, the support shaft 5 can rotate easily, significantly reducing traction resistance. Connecting the set screw 6 to the support frame 2 facilitates adjustment of the rotation speed of the rotating shaft 4, and even allows for locking of the rotating shaft 4, preventing accidental slippage of the belt roll 9 during traction and ensuring operational safety.

[0037] Through the above specific embodiments, those skilled in the art can easily implement this utility model. However, it should be understood that this utility model is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions. Due to space limitations and for the sake of brevity, not all of these combined solutions have been described. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lifting, self-locking device for changing roll materials, characterized in that, It includes a support structure, a support shaft, and a rotating shaft. The support shaft is supported at both ends by the support structure. The support structure includes a fixed bracket and a support frame. The top of the fixed bracket is connected to the support frame. The top of the support frame is provided with a groove, and the rotating shaft is connected to both sides of the groove. The fixed bracket is provided with several pin holes in the longitudinal direction. The fixed bracket and the support frame are connected by pins.

2. The lifting self-locking device for changing roll material according to claim 1, characterized in that, The support frame is threaded with a set screw, the end of which can abut against the rotating shaft.

3. The lifting self-locking device for replacing roll material according to claim 2, characterized in that, Nuts are welded onto the support frame, and set screws are connected to the nuts.

4. The lifting self-locking device for changing roll material according to claim 1, characterized in that, The rotating shaft is rotatably connected to the support frame.

5. A lifting self-locking device for changing roll material according to claim 1, characterized in that, The rotating shaft is connected to the support frame via bearings.

6. A lifting self-locking device for changing roll material according to claim 1, characterized in that, The support shaft is supported by a rotating shaft.

7. A lifting self-locking device for changing roll material according to claim 1, characterized in that, The fixed bracket includes a base, a support rod, and a reinforcing rod. The bottom end of the support rod is fixedly connected to the base, and the top end is connected to the support frame. The support rod is connected to several reinforcing rods, with one end of the reinforcing rod fixedly connected to the support rod and the other end fixedly connected to the base.

8. A lifting self-locking device for changing roll material according to claim 7, characterized in that, The base is a quadrilateral or circular structure.

9. A lifting self-locking device for changing roll material according to claim 7, characterized in that, The base is equipped with casters at its bottom.

10. A lifting self-locking device for changing roll material according to claim 1, characterized in that, The top of the support frame is connected to a limit stop.

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