Lifting device for quickly replacing carrier roller of belt conveyor

Abstract

The utility model discloses a lifting device for quickly replacing a carrier roller of a belt conveyor. The lifting device comprises a base, a connecting pull rod and a lifting frame, the base comprises a base base table, an adjusting groove is formed in the surface of the base base table, an adjusting lead screw with threads is arranged in the adjusting groove, and the adjusting lead screw can rotate around the axis of the adjusting lead screw. The connecting pull rod comprises a fixed pull rod and a movable pull rod; the upper end of the fixed pull rod is hinged to the lifting frame. The lower end of the fixed pull rod is hinged to the base. The upper end of the movable pull rod is hinged to the lifting frame, a nut sleeve is arranged at the lower end of the movable pull rod and arranged on the adjusting lead screw in a sleeving mode, the nut sleeve can be driven to move away from or close to the lower end of the fixed pull rod by rotating the adjusting lead screw, and therefore the lifting frame is driven to descend or ascend. According to the utility model, the conveying belt can be quickly and conveniently lifted up from the lower part, so that the carrier roller can be quickly replaced, a series of work of fixing a chain hoist to hoist the conveying belt is omitted, the labor intensity is reduced, and the maintenance work can be completed by only 1-2 persons.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor auxiliary equipment, and particularly relates to a lifting device for quickly replacing the idlers of a belt conveyor. Background Technique

[0002] The replacement of the idlers of a belt conveyor is an important task in the daily maintenance of the belt conveyor. Timely replacement of damaged idlers is an effective measure to ensure the safe and stable operation of the belt conveyor. If the damaged idlers are not replaced in time, the rolling friction between the conveyor belt and the idlers will become sliding friction, generating a large amount of heat, increasing the temperature of the conveyor belt, producing thick smoke, and even causing the possibility of the conveyor belt burning.

[0003] At present, the method of replacing the idlers of a belt conveyor is rather troublesome and requires the assistance of multiple people for centralized replacement. When a damaged idler is found, first, a crowbar is needed to pry the damaged idler out of the idler bracket slot. Then, a manual hoist is fixed to the roadway roof cable anchor or other hanging points, and the conveyor belt is lifted upward with a steel wire rope to vacate the position of the idler. Then, a new idler is placed into the idler bracket slot. Subsequently, the manual hoist is loosened, the steel wire rope is removed, and the manual hoist fixed to the cable anchor or other hanging points is removed. Finally, the damaged idler is taken away, and only then is the replacement of one damaged idler completed. The replacement and repair are very cumbersome and usually require the assistance of 4 to 5 people.

[0004] In view of this, this application is specifically proposed. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that the existing method of replacing the idlers of a belt conveyor is rather troublesome and usually requires the assistance of 4 to 5 people for centralized replacement. The purpose is to provide a lifting device for quickly replacing the idlers of a belt conveyor, which can quickly and conveniently lift the conveyor belt upward from below to quickly realize the replacement of the idlers, eliminating a series of operations of fixing the manual hoist to lift the conveyor belt, reducing the labor intensity, and only 1 to 2 people are required to complete the repair work.

[0006] The utility model is realized through the following technical solutions:

[0007] A lifting device for quickly replacing the idlers of a belt conveyor includes a base, a connecting pull rod, and a lifting frame;

[0008] The base includes a base platform, and an adjustment groove is provided on the surface of the base platform along the length direction. An adjustment screw rod with threads is arranged in the adjustment groove, and the adjustment screw rod can rotate around its own axis;

[0009] The connecting pull rod includes a fixed pull rod and a movable pull rod;

[0010] The upper end of the fixed pull rod is hinged to the lifting frame, and the lower end of the fixed pull rod is hinged to the base platform.

[0011] The upper end of the movable pull rod is hinged to the lifting frame. A nut sleeve is provided at the lower end of the movable pull rod. The nut sleeve is sleeved on the adjusting screw rod. By rotating the adjusting screw rod, the nut sleeve can be driven to move away from or close to the lower end of the fixed pull rod, thereby driving the lifting frame to descend or ascend.

[0012] The utility model can quickly and conveniently lift the conveyor belt upward from below, so as to quickly replace the idler. A series of operations of fixing a manual hoist to lift the conveyor belt are omitted, the labor intensity is reduced, and only 1 to 2 people are needed to complete the maintenance work.

[0013] When the lifting device of the utility model is in use, at the place where the idler needs to be replaced, the device is placed beside the upper idler frame. The adjusting screw rod is rotated so that the nut sleeve at the lower end of the movable pull rod moves along the adjusting screw rod in a direction away from the fixed pull rod, causing the lifting frame to ascend, thereby lifting the conveyor belt and leaving the position where the idler needs to be replaced empty. After replacing the idler, the adjusting screw rod is rotated in the reverse direction to cause the lifting frame to descend, thereby lowering the conveyor belt to its original position.

[0014] In a specific embodiment, there are two sets of connecting pull rods. The fixed pull rods of the two sets of connecting pull rods are arranged adjacent to each other, and the movable pull rods of the two sets of connecting pull rods are arranged on both sides of the fixed pull rod. At this time, the spiral directions on the outer walls at both ends of the adjusting screw rod are set in opposite directions, so that when the adjusting screw rod rotates, the lower ends of the two movable pull rods can both move outward.

[0015] In a specific embodiment, the fixed pull rod and the movable pull rod are arranged in a V-shaped structure.

[0016] By setting two sets of symmetrically arranged pull rod structures, the utility model can improve the stability of the lifting and descending of the lifting frame.

[0017] In a specific embodiment, the lifting frame includes a lifting plate. Two lifting rods are arranged on the lifting plate. The upper ends of the two lifting rods are inclined outward to form a lifting groove with an inverted V-shaped structure.

[0018] In a specific embodiment, the included angle between the lifting rod and the lifting plate is 35°.

[0019] The angle size of the lifting groove can be specifically selected according to the conveyor model.

[0020] In a specific embodiment, a reinforcing rod is further arranged between the lifting rod and the lifting plate to improve the support strength of the lifting rod.

[0021] In a specific embodiment, the end of the reinforcing rod is detachably connected to the lifting plate and the lifting rod, and the lower end of the lifting rod is detachably connected to the lifting plate. In this way, the lifting device can disassemble the lifting frame during transportation, which is convenient for transportation.

[0022] In a specific embodiment, a hexagonal column is provided at one end of the adjusting screw rod. By providing the hexagonal column, an electric wrench can be used to drive the rotation of the adjusting screw rod.

[0023] In a specific embodiment, the base platform, the fixed pull rod, the movable pull rod, the lifting plate and the lifting rod are all made of high-strength all-aluminum alloy. The material is light, and its weight is 26 - 32 kg, which is convenient for carrying.

[0024] The specific embodiment of the present utility model is as follows: Determine the length of L and the trough angle according to the conveyor model, design and manufacture the base, the connecting pull rod and the lifting frame; carry the device of the present utility model, the aluminum electric wrench and the idler roller to be replaced; at the place where the idler roller needs to be replaced, place the device beside the upper idler roller frame, align the electric wrench socket with the hexagonal column at the end of the adjusting screw rod, start the electric wrench, lift the conveyor belt. When the conveyor belt is separated from the idler roller and has a certain distance (a distance convenient for disassembling and assembling the idler roller), turn off the electric wrench; disassemble the damaged idler roller and install a new idler roller; adjust the electric wrench to reverse, align the socket with the hexagonal column at the end of the adjusting screw rod, start the electric wrench, and lower the conveyor belt; when it is lowered to a convenient position for taking out, turn off the electric wrench, collect the other workpieces carried with, and quickly complete the replacement of the idler roller.

[0025] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0026] 1. The lifting device for quickly replacing the idler roller of a belt conveyor provided by the embodiment of the present utility model can quickly and conveniently lift the conveyor belt from below, so as to quickly realize the replacement of the idler roller, eliminating a series of operations of fixing the manual hoist to lift the conveyor belt, reducing the labor intensity, and only 1 - 2 people are needed to complete the maintenance work;

[0027] 2. The lifting device for quickly replacing the idler roller of a belt conveyor provided by the embodiment of the present utility model can realize the quick lifting and lowering of the conveyor belt with the assistance of an electric wrench, quickly vacate the installation position of the idler roller, and realize the quick replacement of the idler roller, reducing the manual labor;

[0028] 3. The lifting device for quickly replacing the idler roller of a belt conveyor provided by the embodiment of the present utility model, except for the adjusting screw rod and the articulated nut, the other components are all made of high-strength all-aluminum alloy, and its weight is 26 - 32 kg, which is convenient for carrying. Description of the Drawings

[0029] To more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0030] Figure 1 Schematic front view of the lifting device provided by the embodiment of the present utility model;

[0031] Figure 2 Schematic side view of the lifting device provided by the embodiment of the present utility model;

[0032] Figure 3 Schematic view of the descending structure of the lifting device provided by the embodiment of the present utility model.

[0033] Marks in the drawings and corresponding component names:

[0034] 1 - Base platform, 2 - Adjusting screw rod, 3 - Fixed pull rod, 4 - Movable pull rod, 5 - Lifting plate, 6 - Lifting rod, 7 - Lifting groove, 8 - Reinforcing rod. Specific embodiments

[0035] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following will further elaborate on the present utility model in combination with the embodiments and drawings. The illustrative embodiments of the present utility model and their descriptions are only used to explain the present utility model and are not used as a limitation to the present utility model.

[0036] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present utility model. However, it is obvious to those of ordinary skill in the art that: these specific details do not have to be adopted to implement the present utility model. In other embodiments, well-known structures are not specifically described in order to avoid confusing the present utility model.

[0037] Throughout the specification, references to "an embodiment", "embodiments", "an example", or "examples" mean that the specific features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present utility model. Thus, the phrases "an embodiment", "embodiments", "an example", or "examples" that appear throughout the specification do not necessarily all refer to the same embodiment or example. In addition, the specific features, structures, or characteristics can be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. Furthermore, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0038] In the description of the present utility model, the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present utility model.

[0039] Embodiment

[0040] As Figures 1 - 3 shown, a lifting device for rapid replacement of a belt conveyor idler provided by an embodiment of the present utility model includes a base, a connecting pull rod, and a lifting frame;

[0041] The base includes a base platform 1, and an adjustment groove is provided on the surface of the base platform 1 along the length direction. An adjustment screw rod 2 with threads is arranged in the adjustment groove, and the adjustment screw rod 2 can rotate around its own axis;

[0042] The connecting pull rod includes a fixed pull rod 3 and a movable pull rod 4;

[0043] The upper end of the fixed pull rod 3 is hinged to the lifting frame, and the lower end of the fixed pull rod 3 is hinged to the base platform 1;

[0044] The upper end of the movable pull rod 4 is hinged to the lifting frame, and a nut sleeve is arranged at the lower end of the movable pull rod 4. The nut sleeve is sleeved on the adjustment screw rod 2. By rotating the adjustment screw rod 2, the nut sleeve can be driven to move away from or close to the lower end of the fixed pull rod 3, thereby driving the lifting frame to descend or ascend.

[0045] The utility model can quickly and conveniently lift the conveyor belt upward, so as to quickly replace the idler, eliminating a series of operations of fixing a manual hoist to lift the conveyor belt, reducing the labor intensity, and only 1 to 2 people are needed to complete the maintenance work.

[0046] When the lifting device of the utility model is in use, at the place where the idler needs to be replaced, the device is placed beside the upper idler bracket, and the adjusting screw rod is rotated, so that the lower end nut sleeve of the movable pull rod moves along the adjusting screw rod in a direction away from the fixed pull rod, causing the lifting bracket to rise, thereby lifting the conveyor belt and making the position where the idler needs to be replaced vacant. After replacing the idler, reverse-rotate the adjusting screw rod to lower the lifting bracket, thereby lowering the conveyor belt to its original position.

[0047] In a specific embodiment, two sets of connecting pull rods are provided. The fixed pull rods 3 of the two sets of connecting pull rods are arranged adjacent to each other, and the movable pull rods 4 of the two sets of connecting pull rods are arranged on both sides of the fixed pull rod 3. At this time, the spiral directions on the outer walls at both ends of the adjusting screw rod are opposite, so that when the adjusting screw rod rotates, the lower ends of the two movable pull rods 4 can both move outward.

[0048] In a specific embodiment, the fixed pull rod 3 and the movable pull rod 4 are arranged in a V-shaped structure.

[0049] By providing two sets of symmetrically arranged pull rod structures, the utility model can improve the stability of the lifting and lowering of the lifting bracket.

[0050] In a specific embodiment, the lifting bracket includes a lifting plate 5, and two lifting rods 6 are arranged on the lifting plate 5. The upper ends of the two lifting rods 6 are inclined outward to form a lifting groove 7 with an inverted V-shaped structure.

[0051] In a specific embodiment, the included angle between the lifting rod 6 and the lifting plate 5 is 35°.

[0052] The angle size of the lifting groove can be specifically selected according to the conveyor model.

[0053] In a specific embodiment, a reinforcing rod 8 is further arranged between the lifting rod 6 and the lifting plate 5 to improve the support strength of the lifting rod.

[0054] In a specific embodiment, the end of the reinforcing rod 8 is detachably connected to the lifting plate 5 and the lifting rod 6, and the lower end of the lifting rod 6 is detachably connected to the lifting plate 5. In this way, the lifting bracket can be disassembled during the carrying process of the lifting device, which is convenient for transportation.

[0055] In a specific embodiment, a hexagonal column is arranged at one end of the adjusting screw rod 2. By providing the hexagonal column, an electric wrench can be used to drive the rotation of the adjusting screw rod.

[0056] In a specific embodiment, the base pedestal 1, the fixed pull rod 3, the movable pull rod 4, the lifting plate 5 and the lifting rod 6 are all made of high-strength all-aluminum alloy, with light weight, and their weight is 26 - 32 kg, which is convenient for carrying.

[0057] The specific embodiment of the present utility model is as follows: Determine the length of L and the size of the trough angle according to the conveyor model, design and manufacture the base, the connecting pull rod and the lifting frame; Carry the device of the present utility model, an aluminum electric wrench and the rollers to be replaced; At the place where the roller needs to be replaced, place the device beside the upper roller frame, align the electric wrench socket with the hexagonal column at the end of the adjusting screw rod, start the electric wrench, lift the conveyor belt, and when the conveyor belt is separated from the roller by a certain distance (a distance convenient for disassembling and assembling the roller), turn off the electric wrench; Disassemble the damaged roller and install a new roller; Adjust the electric wrench to reverse, align the socket with the hexagonal column at the end of the adjusting screw rod, start the electric wrench, and lower the conveyor belt; When it is lowered to a convenient position for taking out, turn off the electric wrench, collect the other workpieces carried with, and then quickly complete the replacement of the roller.

[0058] The above specific embodiment further details the purpose, technical solution and beneficial effects of the present utility model. It should be understood that the above is only the specific embodiment of the present utility model and is not used to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A lifting device for quick replacement of belt conveyor rollers, characterized in that: It includes a base, a connecting rod and a lifting frame; The base comprises a base platform (1), the surface of the base platform (1) is provided with an adjustment groove along the length direction, a threaded adjustment screw (2) is arranged in the adjustment groove, and the adjustment screw (2) can rotate around its own axis; The connecting rod comprises a fixed rod (3) and a movable rod (4); The upper end of the fixed pull rod (3) is hinged to the lifting frame, and the lower end of the fixed pull rod (3) is hinged to the base pedestal (1); The upper end of the movable pull rod (4) is hinged to the lifting frame, and the lower end of the movable pull rod (4) is provided with a nut sleeve, which is sleeved on the adjusting screw rod (2). By rotating the adjusting screw rod (2), the nut sleeve can be driven to move away from or towards the lower end of the fixed pull rod (3), thereby driving the lifting frame to descend or ascend.

2. According to claim 1, a lifting device for quick replacement of belt conveyor rollers is characterized in that: The connecting rods are provided in two groups, the fixed rods (3) of the two groups of connecting rods are arranged adjacent to each other, and the movable rods (4) of the two groups of connecting rods are arranged on both sides of the fixed rods (3).

3. The lifting device for quick replacement of belt conveyor rollers according to claim 1, characterized in that: The fixed pull rod (3) and the movable pull rod (4) are arranged in an eight-shaped structure.

4. The lifting device for quick replacement of belt conveyor rollers according to claim 1, characterized in that: The lifting frame comprises a lifting plate (5), on which two lifting rods (6) are arranged, and the upper ends of the two lifting rods (6) are inclined outward to form a lifting groove (7) with an inverted eight-shaped structure.

5. A lifting device for quick replacement of belt conveyor rollers according to claim 4, characterized in that: The angle between the lifting rod (6) and the lifting plate (5) is 35°.

6. A lifting device for quick replacement of belt conveyor rollers according to claim 4, characterized in that: A reinforcing rod (8) is also provided between the lifting rod (6) and the lifting plate (5).

7. A lifting device for quick replacement of belt conveyor rollers according to claim 6, characterized in that: The end of the reinforcing rod (8) is detachably connected to the lifting plate (5) and the lifting rod (6), and the lower end of the lifting rod (6) is detachably connected to the lifting plate (5).

8. The lifting device for quick replacement of belt conveyor rollers according to claim 1, characterized in that: One end of the adjusting screw rod (2) is provided with a hexagonal column.

9. The lifting device for quick replacement of belt conveyor rollers according to claim 4, characterized in that: The base platform (1), the fixed pull rod (3), the movable pull rod (4), the lifting plate (5) and the lifting rod (6) are all made of aluminum alloy.

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