Quick replacement tool for trough roller of belt conveyor

Abstract

The utility model discloses a belt conveyor trough type carrier roller quick replacement frock, the belt conveyor trough type carrier roller quick replacement frock includes connecting rod, hole post pin, support seat, screw rod, rotary wheel disc, movable slide. The screw rod is put into from the support seat top round hole and then is fixed in the support seat, and the rotary wheel disc is fixed together with the screw rod, and the movable slide is sleeved on the screw rod, and the movable slide moves up and down on the screw rod by the rotary wheel disc driving the screw rod rotation, and the connecting rod is connected with the movable slide through the hole post pin, the connecting rod local top -up belt, and the sufficient operation space is left, thereby realizes quick replacement belt conveyor carrier roller. The utility model can effectively reduce the labor intensity of staff, and the operation is flexible, convenient, safe, shortens the operation time, and improves the work efficiency. The manpower and time cost are greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical maintenance devices, specifically relating to a quick-change tooling for supporting trough idlers of belt conveyors used for conveying materials. Background Technology

[0002] A belt conveyor is a friction-driven machine that transports materials continuously. It mainly consists of a frame, conveyor belt, idlers, drums, tensioning devices, and transmission devices. Idler rollers, as transmission components, are numerous and prone to damage; they are widely used in practice. Idler rollers have an integral, fixed structure, directly fixed to an idler roller bracket. When damaged, the entire idler roller bracket needs to be removed. Replacing idler rollers is one of the most frequent tasks for maintenance teams. Each time an idler roller is replaced, personnel must use a hand-operated hoist and pry bar to lift the belt surface. This operation is not only time-consuming and labor-intensive, increasing the labor intensity of employees, but also exposes operators to risks such as being struck by objects and being squeezed by the conveyor belt during the replacement process. It also affects the maintenance progress and poses certain safety hazards.

[0003] While existing technologies disclose some conveyor belt lifting and replacement devices using lifting mechanisms, such as the support and replacement device for tandem idlers disclosed in application number 202122458876.9, these devices also present several inconveniences in use. For example, the structure is relatively long, requiring considerable effort to lay it horizontally before it can be transported from one side of the conveyor belt to the other, positioning it directly beneath the belt. This typically requires two people working together to move it, and if the spacing between the idler frames is less than the device's height, it cannot be placed, making this step time-consuming and labor-intensive. Furthermore, these devices are structurally complex, with numerous and long components that are difficult to disassemble and store. Additionally, the width of the conveyor belt must be manually adjusted beforehand for different widths, making operation inconvenient. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a quick-change tooling for trough idlers of belt conveyors for conveying materials, which aims to solve the above problems. It can quickly install and replace trough idlers of belt conveyors with different width specifications. The device has a simple structure, is practical and convenient to assemble, disassemble and store, and can conveniently replace trough idlers of belt conveyors.

[0005] Specifically, this utility model is implemented as follows:

[0006] The support seats are used in pairs and are fixedly installed on both sides of the belt conveyor at the bottom, arranged opposite each other. The lead screw is installed vertically on the support seat, with its top extending to the top of the support seat and connected to the rotating wheel. It can rotate axially under the drive of the rotating wheel. The movable slider is provided with a through threaded hole and is fitted onto the lead screw. The threaded hole matches the thread of the lead screw and can rise and fall with the rotation of the lead screw. The connecting rod is in the shape of a three-section bend. Its two ends are hinged to the two movable sliders respectively by detachable pins. It is located below the conveyor belt and can rise with the movement of the movable sliders to support the conveyor belt and make room for easy replacement of the trough idler roller.

[0007] The support base is shaped like a "]" and includes a top plate, side plates, and a base. The lead screw is vertically inserted into a circular hole above the top plate and then rotatably mounted in a circular groove or hole on the base. The base has a downward-opening groove-shaped opening, and a locking bolt is horizontally installed on the outer side of the groove-shaped opening. The groove-shaped opening can be engaged with the two side frames of the belt conveyor and secured by horizontally tightening the locking bolt.

[0008] The connecting rod (1) is a three-section assembly, with each section connected by a hinge. The hinged three-section connecting rod (1) can adapt to different combination angles depending on the different spacing between the two support seats (6) to accommodate belt conveyors of different widths. The three-section connecting rod (1) can also be folded at both ends for easy storage.

[0009] In the three-section structure of the connecting rod (1), the length of the middle section rod is not shorter than the sum of the lengths of the two end rods, and both end rods can rotate upwards towards the middle section rod to fold and store.

[0010] The connecting rod (1) is connected to the movable slider (2) by a pin with a hole (8).

[0011] The center of the rotating wheel (4) is fixedly connected to the shaft end of the lead screw (3) and is provided with a vertical handle. The movable slider (2) is sleeved on the lead screw (3). By operating the rotating wheel (4) through the handle (5), the lead screw (3) is rotated, causing the movable slider (2) to move up or down according to the different rotation directions.

[0012] The detachable pin is a pin with a hole (8). The pin head of the pin with a hole (8) can pass through the hinge of the movable slider (2) and the connecting rod (1) and then be inserted into the hole of the pin head by a pin buckle to prevent the pin from slipping.

[0013] The support base (6) is also provided with a guide rod (7), and the movable slider (2) is provided with a sliding hole adapted to the thickness of the guide rod, and the guide rod passes through (7) into the sliding hole.

[0014] The working principle of this utility model is as follows: When using this quick-change tooling for the trough idler roller of the belt conveyor, firstly, the paired "]"-shaped support seats are inserted into the frame on both sides of the conveyor through the slotted structure under the base, and the locking bolts on the outside of the base are tightened to complete the fixation; then, the connecting rod is passed through and unfolded from under the bottom of the belt conveyor, so that the connecting rod is located under the conveyor belt, and then a pin with a hole is passed through the hinge at both ends of the connecting rod connected to the movable slider and the three-section hinge, and the pin with the hole is inserted to lock the pin with a pin; the operator rotates the wheel to drive the screw to rotate axially, and under the limit of the guide rod, the movable slider converts the rotational motion of the screw into vertical lifting through the thread engagement, thereby driving the connecting rod below to rise synchronously, lifting the conveyor belt and separating it from the trough idler roller to make room for replacement. In addition, during the installation process, the angle of the three-section connecting rod can be adaptively adjusted by the hinge to adapt to conveyors of different widths. After the replacement is completed, the wheel is rotated in the opposite direction to reset the parts, and the pin is removed and the connecting rod is folded to form multiple single-part structures, which are convenient for unified storage and do not occupy space.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) This utility model consists of two support seats combined, with two support seat brackets fixed by locking bolts. The support seats are lifted by screws at both ends, and the lower part of the support seats is equipped with locking bolts and fixed by adjusting nuts, which can further stabilize the support seats on the support frame. The stability is better than the single-point lifting method of existing scissor jacks. It improves the stability and safety of the support system.

[0017] (2) The two separate support seats and the three-section hinged connecting rod of this utility model cooperate with each other and can adapt to different combination angles according to different distances between the two support seats, thereby adapting to belt conveyors of different widths, improving the versatility of the tooling, making it flexible and adjustable. Even if an ultra-wide belt conveyor is encountered, it can be adapted by replacing the connecting rod with a longer specification.

[0018] (3) The connecting rod 1 of this utility model adopts a detachable assembly and folding method, which is convenient for carrying, storage and assembly replacement of parts. The structure is reasonably designed, the manufacturing and maintenance costs are low, and it is easy to operate, store and promote. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the exploded structure of the tooling of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall planar structure of the tooling of this utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional integral structure of the tooling of this utility model;

[0022] Figure 4This is a schematic cross-sectional view of the single-sided support of the tooling of this utility model;

[0023] Figure 5 This is a schematic diagram of the installation preparation for the tooling support of this utility model;

[0024] Figure 6 This is a schematic diagram showing the tooling support of this utility model in place.

[0025] Figure 7 This is a schematic diagram of the tooling operation of this utility model;

[0026] Figure 8 This is a schematic diagram of the tooling support in place for replacing the idler roller in this utility model.

[0027] Figure 9 This is a schematic diagram of the tooling support of this utility model in place.

[0028] Figure 10 This is a schematic diagram of the tooling of this utility model adapting to a narrower belt;

[0029] Figure 11 This is a schematic diagram of the tooling of this utility model adapting to a wider belt;

[0030] Figure 12 This is a schematic diagram of the folding and storage of the tooling connecting rod of this utility model;

[0031] Figure 13 This is a schematic diagram of the folded and stowed tooling connecting rod of this utility model;

[0032] The annotations in the attached figures are explained as follows:

[0033] In the diagram: 1. Connecting rod; 2. Moving slider; 3. Lead screw; 4. Rotating wheel; 5. Handle; 6. Support base; 7. Guide rod; 8. Piped pin; 9. Fastening bolt. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] Example 1

[0036] like Figure 5 As shown, when the belt conveyor idler needs maintenance or replacement, the equipment is stopped and the power is disconnected. The tooling is then taken to the damaged idler. First, connecting rod 1 is laid horizontally and passed under the conveyor belt. When the entire tooling is under the conveyor belt, two support seats are installed on the corresponding sides of the belt conveyor. Figure 8As shown, first, the two support seats 6 of the tooling are respectively clamped onto the frame of the belt conveyor and onto the side frame of the belt conveyor. The "lower opening groove structure" of the base is directly clamped into the two side frames of the belt conveyor. The frame is a steel structure that is compatible with the groove opening. Tighten the transverse locking bolts 9 on the outside of the base. The bolts are transversely pressed against the side of the frame, "locking" the support seats onto the frame, forming two symmetrical and stable "lifting bases".

[0037] Then, the two ends of the connecting rod are connected to the movable slider 2. During connection, the pin 8 passes through the hinge hole of the slider 2 and the connecting rod 1, and is then inserted into the pin buckle for locking, preventing slippage during operation. This structural design facilitates subsequent storage and adaptation to conveyors of different widths. At this point, the lead screw 3, the movable slider 2, and the connecting rod 1 form a rigid connection. The lifting and lowering of the slider 2 will directly drive the connecting rod 1 to lift and lower synchronously, preparing for subsequent lifting of the conveyor belt. Figure 7 As shown, assemble the tooling connecting rod, then one or two people manually rotate the wheel 4 to drive the lead screw 3 to rotate, thereby driving the moving slider 2 and the connecting rod to rise to a higher height, until the connecting rod 1 raises the conveyor belt to a position with sufficient working space. Figure 8 As shown, the idler roller can be replaced. The wheel has a vertical handle, which is easy to operate and saves effort; the threaded hole of the movable slider 2 engages with the thread of the lead screw 3. According to the "lead screw and nut transmission principle", the rotational motion of the lead screw 3 is converted into the linear lifting and lowering motion of the slider. Rotating the wheel clockwise / counterclockwise will move the slider up / down accordingly.

[0038] Preferably, the guide rod 7 inside the support base 6 passes through the sliding hole of the slider 2, restricting the slider 2 to move only along the direction of the guide rod 7 (vertically), preventing the slider 2 from "rotating" with the lead screw 3, and ensuring smooth lifting and lowering; when the slider 2 moves upward, it drives the hinged connecting rod 1 to rise synchronously - the connecting rod 1 is located below the conveyor belt, and after rising, it directly lifts the conveyor belt upward until the conveyor belt is completely separated from the trough idler below, freeing up sufficient "idler replacement space". The space height is determined by the slider lifting stroke and can be flexibly adjusted by rotating the wheel.

[0039] Preferably, the frame spacing (width) varies for different belt conveyors—the three-section hinge structure of connecting rod 1 allows for flexible angle adjustment. The two end rods are hinged around the middle section rod, allowing for extension or natural drooping and retraction to adapt to different spacings of the side supports, eliminating the need for customized tooling for different models. After replacement, the wheel is rotated in the opposite direction to lower the slider, causing the connecting rod to fall back. The perforated pin is then removed, such as... Figure 12 As shown, the two end rods are rotated and folded upwards towards the middle rod. The middle rod is longer than the sum of the two end rods. After folding, the volume is small, making it easy to transport and store.

[0040] The above description uses specific examples to illustrate this utility model, which is only for the purpose of helping to understand this utility model and is not intended to limit this utility model. For those skilled in the art, without departing from the scope of the technical solution of this utility model, some modifications or alterations can be made to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model without departing from the scope of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A quick-change tooling for trough-type idlers of a belt conveyor, characterized in that... include: Support bases (6) are used in pairs and are fixedly installed on both sides of the belt conveyor at the bottom, arranged opposite each other. The lead screw (3) is vertically mounted on the support base (6), and its top end extends to the top of the support base (6) and is connected to the rotating wheel (4). It can rotate axially under the drive of the rotating wheel (4). The movable slider (2) is provided with a through threaded hole and is fitted onto the lead screw (3). The threaded hole matches the thread of the lead screw (3) and can rise and fall with the rotation of the lead screw (3). The connecting rod (1) is in the shape of a three-section bend. Both ends are hinged to two movable sliders (2) by detachable pins (8). It is located below the conveyor belt and can rise with the movable sliders (2) to support the conveyor belt and free up space for easy replacement of the trough idler.

2. The quick-change tooling for trough-type idlers of a belt conveyor according to claim 1, characterized in that: The support base (6) is in the shape of "]", including a top plate, a side plate and a base. The lead screw (3) is vertically inserted into the round hole above the top plate and then rotatably mounted in the round groove or round hole on the base.

3. The quick-change tooling for trough-type idlers of a belt conveyor according to claim 2, characterized in that: The base has a downward-opening groove-shaped opening, and a locking bolt (9) is installed laterally on the outside of the groove-shaped opening. The groove-shaped opening can be inserted into the two side frames of the belt conveyor and is tightened laterally by the locking bolt (9).

4. The quick-change tooling for trough-type idlers of a belt conveyor according to claim 1, characterized in that: The connecting rod (1) is a three-section assembly, with each section connected by a hinge. The hinged three-section connecting rod (1) can adapt to different combination angles depending on the different spacing between the two support seats (6) to accommodate belt conveyors of different widths. The three-section connecting rod (1) can also be folded at both ends for easy storage.

5. The quick-change tooling for trough-type idlers of a belt conveyor according to claim 4, characterized in that: In the three-section structure of the connecting rod (1), the length of the middle section rod is not shorter than the sum of the lengths of the two end rods, and both end rods can rotate upwards towards the middle section rod to fold and store.

6. The quick-change tooling for trough-type idlers of a belt conveyor according to claim 1, characterized in that: The connecting rod (1) is connected to the movable slider (2) by a pin with a hole (8).

7. The quick-change tooling for trough-type idlers of a belt conveyor according to claim 1, characterized in that: The center of the rotating wheel (4) is fixedly connected to the shaft end of the lead screw (3) and is provided with a vertical handle (5). The movable slider (2) is sleeved on the lead screw (3). By operating the rotating wheel (4) through the handle (5), the lead screw (3) is rotated, causing the movable slider (2) to move up or down according to the different rotation directions.

8. The quick-change tooling for trough-type idlers of a belt conveyor according to claim 1, characterized in that: The detachable pin is a pin with a hole (8). The pin head of the pin with a hole (8) can pass through the hinge of the movable slider (2) and the connecting rod (1) and then be inserted into the hole of the pin head by a pin buckle to prevent the pin from slipping.

9. A quick-change tooling for trough-type idlers of a belt conveyor according to claim 2, characterized in that: The support base (6) is also provided with a guide rod (7), and the movable slider (2) is provided with a sliding hole adapted to the thickness of the guide rod (7), and the guide rod (7) passes through the sliding hole.

10. A quick-change tooling for trough-type idlers of a belt conveyor according to claim 1, characterized in that: The "lower opening groove structure" of the support base (6) is directly inserted into the two side frames of the belt conveyor, and the frame is a steel structure.

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