Hydraulic belt supporting device with safety valve

Abstract

The utility model discloses a hydraulic belt supporting device with a safety valve, which comprises an oil cylinder capable of lifting to open a belt, and further comprises a supporting assembly arranged at the top end of the oil cylinder and used for increasing the contact area with the belt and dispersing pressure in the lifting process, and relates to the technical field of belt conveyor maintenance tools. According to the hydraulic belt supporting device with the safety valve, extra supporting points can be provided for the oil cylinder through the arranged supporting rod and the limiting bolt, so that the stability of the oil cylinder during working is improved, and the limiting bolt is rotated to be taken down from the top surface of the fixing block during use; then the supporting plate is pulled to pull the supporting rod out of the interior of the containing groove so that the supporting rod can be attached to the top face of the fixing block, then a limiting bolt penetrates through a groove opening to be rotated to be inserted into the interior of the fixing block to fix the position of the supporting rod, then the base is placed on the ground, meanwhile, the supporting plate can be attached to the ground, and at the moment, the device can continue to be used; the size is small, the flexibility is high, the stability is good, and the safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor maintenance tools, in particular to a hydraulic belt supporting device with a safety valve. Background Art

[0002] Belt conveyors utilize continuous belt motion to transport materials. They are crucial material handling equipment in industrial production, particularly in the coal, electricity, and cement industries. Due to the demands of continuous operation, belt conveyor maintenance, particularly roller replacement, must be performed quickly and safely to maintain production efficiency.

[0003] Reference is made to a hydraulic belt roller replacement device disclosed in a patent application with publication number CN213888965U. This device is moved to the bottom of the belt conveyor by setting a universal wheel, and the arc-shaped support plate is raised by a hydraulic jack to contact the roller to provide support to the roller. The belt expansion device is then moved to the inner side of the belt on both sides of the belt conveyor by a first electric push rod and a second electric push rod, and the belt on both sides of the roller is stretched by the belt expansion device, and the roller is then turned perpendicular to the previous direction by a steering mechanism. Finally, the roller is removed by a hydraulic jack, and the new roller is placed on the arc-shaped support plate and then installed to the original position by a hydraulic jack and a steering mechanism, which saves manpower and has a simple structure.

[0004] However, the above technology moves the device to the bottom of the belt conveyor, lifts the arc-shaped support plate to contact the roller through the hydraulic jack, and then stretches the belt to replace the roller. However, its relatively large size becomes a major limitation of its application flexibility, especially in some belt conveyor areas with narrow operating space. When encountering a small operating space, maintenance personnel have to rely on traditional manual lifting or simple mechanical lifting equipment to complete the replacement of the roller, which reduces the safety of replacing the roller, affects the overall work efficiency, and has general practicality. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a hydraulic belt support device with a safety valve, which solves the problems that the existing hydraulic belt support device is relatively large in size and has general flexibility. When the operating space is small, maintenance personnel have to rely on traditional manual lifting or simple mechanical lifting equipment to complete the replacement of rollers, which reduces the safety of replacing rollers, affects the overall work efficiency, and has general practicality.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hydraulic belt-supporting device with a safety valve, including an oil cylinder that can be raised and lowered to stretch the belt, and also includes:

[0007] The lifting assembly is installed at the top of the oil cylinder to increase the contact area with the belt and disperse the pressure during the lifting process. The contact area can be adjusted according to the width of the belt.

[0008] The drive assembly is arranged outside the oil cylinder and is used to supply hydraulic oil to the oil cylinder and can adjust the supply pressure of the hydraulic oil;

[0009] The support assembly is set on the outside of the cylinder to provide additional support points to ensure stability during operation and facilitate storage and carrying.

[0010] Preferably, the support assembly includes a fixed cylinder fixedly mounted on the outside of the oil cylinder, three placement slots are opened on the outside of the fixed cylinder, and the bottom ends of the inner sides of the three placement slots are movably hinged with support rods to provide additional support points, and the top end of the support rod is fixedly mounted with a support plate, and three soft blocking blocks are fixedly mounted on the top end of the outside of the fixed cylinder, and slots are opened on the bottom end of the outside of the support rod, and three fixing blocks are fixedly mounted on the bottom end of the outside of the fixed cylinder to position the support rod when the support rod is unfolded, and the top ends of the three fixing blocks are threadedly installed with limiting bolts, and the bottom end of the oil cylinder is fixedly mounted with a base to support the position of the oil cylinder.

[0011] Preferably, the inner side of the soft card block is tightly attached to the outer side of the support rod, so that the support rod is located inside the three placement slots when stored. The limit bolt is adapted to the size of the slot, and when the support rod is unfolded, the limit bolt can pass through the slot to fix the position of the support rod.

[0012] Preferably, the lifting assembly includes a lifting plate fixedly mounted on the top of the oil cylinder, movable grooves are provided on both sides of the lifting plate, an extension plate is movably installed inside the movable groove for adapting to belts of different widths, a plurality of slots are provided on the bottom surface of the extension plate, and adjustment bolts are threadedly installed on both sides of the bottom surface of the lifting plate.

[0013] Preferably, the top surface of the movable groove passes through the interior of the supporting plate and extends to the top surface of the supporting plate, and the top thread of the adjusting bolt passes through the bottom surface of the supporting plate and extends to the interior of several slots to fix the position of the extension plate.

[0014] Preferably, the drive assembly includes a valve body fixedly mounted on the outside of the oil cylinder, one end of the valve body is connected to an oil pipe for conveying hydraulic oil, and one end of the oil pipe is connected to a manual pump for providing hydraulic oil.

[0015] The utility model provides a hydraulic belt-supporting device with a safety valve. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The hydraulic belt support device with a safety valve can provide an additional support point for the oil cylinder by providing a support rod and a limit bolt to improve the stability of the oil cylinder during operation. When in use, the limit bolt is rotated to remove it from the top surface of the fixed block, and then the support plate is pulled to pull the support rod out of the inside of the placement groove so that the support rod is attached to the top surface of the fixed block. Then the limit bolt is passed through the slot and the limit bolt is rotated and inserted into the inside of the fixed block to fix the position of the support rod. Then the base is placed on the ground and the support plate will be attached to the ground. At this time, it can continue to be used. It is small in size, highly flexible, and has good stability, which improves the safety of the device.

[0017] (2) The hydraulic belt support device with a safety valve can increase the contact area with the belt by setting an extension plate and a lifting plate. When in use, the extension plate is pulled out from the inside of the movable groove according to the width of the belt to adjust the length of the extension plate, and then the adjusting bolt is rotated and inserted into the inside of the slot to fix the position of the extension plate. Then, the oil cylinder is started to raise the lifting plate and the extension plate to lift the belt to replace the roller. The extension plate and the lifting plate can disperse the pressure during the lifting process, thereby improving the stability of the installation system and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional appearance of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional appearance of the lifting component of the present invention;

[0020] Figure 3 This is a partial cross-sectional three-dimensional schematic diagram of the lifting component of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional appearance of the support assembly of the present invention;

[0022] Figure 5 This is a schematic diagram of the three-dimensional appearance of the support component of the present invention.

[0023] In the figure: 1-oil cylinder, 21-lifting assembly, 211-extension plate, 212-movable groove, 213-lifting plate, 214-adjusting bolt, 215-slot, 22-driving assembly, 221-manual pump, 222-oil delivery pipe, 223-valve body, 23-support assembly, 231-base, 232-support plate, 233-soft card block, 234-support rod, 235-fixing cylinder, 236-limiting bolt, 237-notch, 238-placement slot, 239-fixing block. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See Figure 1-Figure 5 , this utility model provides two technical solutions:

[0026] First embodiment: A hydraulic belt support device with a safety valve, including an oil cylinder 1 that can be raised and lowered to stretch the belt, and also includes:

[0027] The lifting assembly 21 is provided at the top of the oil cylinder 1 and is used to increase the contact area with the belt to disperse the pressure during the lifting process, and supports adjusting its contact area according to the width of the belt;

[0028] The drive assembly 22 is provided outside the oil cylinder 1 and is used to provide the oil cylinder 1 with a supply of hydraulic oil and can adjust the supply pressure of the hydraulic oil;

[0029] The support assembly 23 is arranged on the outside of the oil cylinder 1 to provide an additional support point to ensure stability during operation and to facilitate storage and carrying. The support assembly 23 includes a fixed cylinder 235 fixedly installed on the outside of the oil cylinder 1, and three placement grooves 238 are opened on the outside of the fixed cylinder 235, and the three placement grooves 238 are evenly distributed on the outside of the fixed cylinder 235 in a circle. The bottom surfaces of the three placement grooves 238 are inclined, and the bottom ends of the inner sides of the three placement grooves 238 are movably hinged with support rods 234 to provide additional support points. The top end of the support rod 234 is fixedly installed with a support plate 232, and the top end of the outer side of the fixed cylinder 235 is fixedly installed with three soft blocks 233, and the three soft blocks 233 are L-shaped, and the bottom end of the outer side of the support rod 234 is opened The slot 237 and the bottom end of the outer side of the fixing cylinder 235 are fixedly installed with three fixing blocks 239, which can position the support rod 234 when the support rod 234 is unfolded, and the three fixing blocks 239 are evenly distributed in a circle on the bottom surface of the outer side of the fixing cylinder 235. The top ends of the three fixing blocks 239 are all threaded with limiting bolts 236. The bottom end of the oil cylinder 1 is fixedly installed with a base 231 for supporting the position of the oil cylinder 1. The inner side of the soft blocking block 233 is tightly attached to the outer side of the support rod 234, which is used to make the support rod 234 located inside the three placement slots 238 when stored. The limiting bolt 236 is adapted to the size of the slot 237, and when the support rod 234 is unfolded, the limiting bolt 236 can pass through the slot 237 to fix the position of the support rod 234.

[0030] The support rod 234 and the limiting bolt 236 are provided to provide an additional support point for the oil cylinder 1 to improve the stability of the oil cylinder 1 during operation. When in use, the limiting bolt 236 is rotated to remove it from the top surface of the fixing block 239, and then the support plate 232 is pulled to pull the support rod 234 out of the placement groove 238 so that the support rod 234 is attached to the top surface of the fixing block 239. Then the limiting bolt 236 is passed through the slot 237 and the limiting bolt 236 is rotated to insert the inside of the fixing block 239 to fix the position of the support rod 234. Then the base 231 is placed on the ground and the support plate 232 will be attached to the ground. At this time, it can continue to be used. It is small in size, highly flexible, and has good stability, which improves the safety of the device.

[0031] The second embodiment is different from the first embodiment in that the lifting assembly 21 includes a lifting plate 213 fixedly mounted on the top of the oil cylinder 1, and the lifting plate 213 is U-shaped, and movable grooves 212 are provided on both sides of the lifting plate 213. An extension plate 211 is movably installed inside the movable groove 212 to adapt to belts of different widths, and anti-slip grooves are provided on the left and right sides of the top surface of the lifting plate 213 and the top surface of the extension plate 211 to increase the friction with the belt, and a plurality of slots 215 are provided on the bottom surface of the extension plate 211, and the plurality of slots 215 are linearly and evenly distributed on the bottom surface of the extension plate 211. Adjusting bolts 214 are threadedly installed on both sides of the bottom surface of 213. The top surface of the movable groove 212 passes through the interior of the lifting plate 213 and extends to the top surface of the lifting plate 213. The top thread of the adjusting bolt 214 passes through the bottom surface of the lifting plate 213 and extends to the interior of several slots 215 to fix the position of the extension plate 211. The drive assembly 22 includes a valve body 223 fixedly mounted on the outside of the cylinder 1, and the hydraulic oil supply can be adjusted by the soft block 233. One end of the valve body 223 is connected to an oil pipe 222 for conveying hydraulic oil, and one end of the oil pipe 222 is connected to a manual pump 221 for providing hydraulic oil.

[0032] The extension plate 211 and the supporting plate 213 are provided to increase the contact area with the belt. When in use, the extension plate 211 is pulled out from the inside of the movable groove 212 according to the width of the belt to adjust the length of the extension plate 211, and then the adjusting bolt 214 is rotated and inserted into the inside of the slot 215 to fix the position of the extension plate 211. Then, the oil cylinder 1 is started to raise the supporting plate 213 and the extension plate 211 to lift the belt to replace the roller. The extension plate 211 and the supporting plate 213 can disperse the pressure during the lifting process, thereby improving the stability of the installation system and having good practicality.

[0033] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0034] When in use, the extension plate 211 is pulled out from the inside of the movable slot 212 according to the width of the belt to adjust the length of the extension plate 211, and then the adjusting bolt 214 is rotated to insert into the inside of the slot 215 to fix the position of the extension plate 211, and then the limiting bolt 236 is rotated to remove it from the top surface of the fixing block 239, and then the support plate 232 is pulled out of the inside of the placement slot 238 so that the support rod 234 is attached to the top surface of the fixing block 239, and then the limiting bolt 236 is passed through the slot. The opening 237 is used to rotate the limit bolt 236 and insert it into the interior of the fixed block 239 to fix the position of the support rod 234. The base 231 is then placed on the ground, and the support plate 232 is attached to the ground, so that the cylinder 1 is located below the conveyor belt. The valve body 223 is then opened and the manual pump 221 is pressed to transport the hydraulic oil to the interior of the cylinder 1 through the oil pipe 222 to lift the cylinder 1. The cylinder 1 then drives the lifting plate 213 and the extension plate 211 to lift up the belt. At this time, the roller can be replaced.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include" or "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic belt support device with a safety valve, comprising a cylinder (1) that can be raised and lowered to support the belt, characterized in that: Also includes: A lifting assembly (21) is provided at the top end of the oil cylinder (1) and is used to increase the contact area with the belt to disperse the pressure during the lifting process, and supports adjustment of the contact area according to the width of the belt; A drive assembly (22) is arranged outside the oil cylinder (1) and is used to supply hydraulic oil to the oil cylinder (1) and can adjust the supply pressure of the hydraulic oil; A support assembly (23) is arranged outside the oil cylinder (1) to provide an additional support point to ensure stability during operation.

2. A hydraulic belt support device with a safety valve according to claim 1, characterized in that: The support assembly (23) includes a fixed cylinder (235) fixedly mounted on the outside of the oil cylinder (1), three placement grooves (238) are provided on the outside of the fixed cylinder (235), and the bottom ends of the inner sides of the three placement grooves (238) are movably hinged with support rods (234) for providing additional support points. The top end of the support rod (234) is fixedly mounted with a support plate (232), and three soft clamping blocks (233) are fixedly mounted on the top end of the outer side of the fixed cylinder (235). The bottom end of the outer side of the support rod (234) is provided with a notch (237), and three fixing blocks (239) are fixedly mounted on the bottom end of the outer side of the fixed cylinder (235) for positioning the support rod (234) when the support rod (234) is unfolded. The top ends of the three fixing blocks (239) are threadedly mounted with limiting bolts (236), and the bottom end of the oil cylinder (1) is fixedly mounted with a base (231) for supporting the position of the oil cylinder (1).

3. The hydraulic belt support device with a safety valve according to claim 2, characterized in that: The inner side of the soft block (233) is tightly attached to the outer side of the support rod (234), so that the support rod (234) is located inside the three placement slots (238) when stored. The limiting bolt (236) is adapted to the size of the slot (237), and when the support rod (234) is unfolded, the limiting bolt (236) can pass through the slot (237) to fix the position of the support rod (234).

4. The hydraulic belt support device with a safety valve according to claim 1, characterized in that: The lifting assembly (21) comprises a lifting plate (213) fixedly mounted on the top of the oil cylinder (1); movable grooves (212) are provided on both the left and right sides of the lifting plate (213); an extension plate (211) is movably mounted inside the movable groove (212) for adapting to belts of different widths; a plurality of slots (215) are provided on the bottom surface of the extension plate (211); and adjusting bolts (214) are threadedly mounted on both the left and right sides of the bottom surface of the lifting plate (213).

5. The hydraulic belt support device with a safety valve according to claim 4, characterized in that: The top surface of the movable groove (212) passes through the interior of the supporting plate (213) and extends to the top surface of the supporting plate (213), and the top thread of the adjusting bolt (214) passes through the bottom surface of the supporting plate (213) and extends to the interior of the plurality of slots (215) to fix the position of the extension plate (211).

6. The hydraulic belt support device with a safety valve according to claim 1, characterized in that: The drive assembly (22) comprises a valve body (223) fixedly mounted on the outside of the oil cylinder (1); one end of the valve body (223) is connected to an oil delivery pipe (222) for delivering hydraulic oil; and one end of the oil delivery pipe (222) is connected to a manual pump (221) for providing hydraulic oil.

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