A round pipe belt conveyor deviation rectifying device and a deviation rectifying system

Abstract

The present application belongs to the field of round pipe belt conveyors, and particularly relates to a round pipe belt conveyor deviation rectifying device and a deviation rectifying system. The round pipe belt conveyor deviation rectifying device comprises deviation rectifying components acting on a pipe truss of the round pipe belt conveyor. Multiple sets of the deviation rectifying components form a hydraulic deviation rectifying channel, a conveying belt wound into a round pipe passes through the channel, each deviation rectifying component can independently move, and a "deviation rectifying force" is provided in the circumferential direction of the round pipe, so that the deviation rectifying capacity of each deviation rectifying roller is fully utilized, and multiple deviation rectifying rollers can simultaneously move, so that the deviation rectifying effect is effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of circular tube belt conveyors, and specifically relates to a circular tube belt conveyor correction device and correction system. Background Technology

[0002] Based on field experience, there are significant differences between flat belt alignment and tubular belt alignment. When the conveyor belt deviates in its unfolded state, tilting or raising the idlers is beneficial for alignment. However, for tubular belts, raising the idlers can easily cause excessive belt deflection, which is often detrimental to alignment. Tilting the idlers forward is more effective for alignment, and tilting all idlers forward as a whole yields the best results. Currently, alignment adjustment for circular tubular belt conveyors typically involves adjusting only 1-2 idlers, using methods such as manual alignment, motor control, and linkage mechanism alignment. Alignment methods that manually loosen or tighten bolts and nuts to change the installation angle of the idlers, or add shims to the ends of the idlers, require machine shutdown and are inefficient. Circular tubular belt conveyors are generally used in harsh environments with limited power supply, making motor-assisted adjustment using push rods, lead screws, or gears unreliable. Alignment via linkage mechanisms is slow and yields unsatisfactory results.

[0003] The existing pipe-belt linkage correction technology (such as DE 102008024) has the problem of multiple sets of idlers tilting as a whole, which cannot give full play to the correction function of each adjustment idler. The squeezing force on the conveyor belt will also cause the round pipe to continue to run off-track.

[0004] To solve the above-mentioned technical problems, this invention is proposed to enable multiple idlers to operate simultaneously, fully utilize the correction capability of each idler, and effectively improve the correction efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a correction device for a circular tube belt conveyor to solve the technical problems mentioned in the background art, realize the simultaneous operation of multiple correction rollers, give full play to the correction capability of each correction roller, and effectively improve the correction efficiency.

[0006] The objective of this invention is achieved by providing a correction device for a circular tube belt conveyor, comprising correction components acting on a support frame of the circular tube belt conveyor. The multiple sets of correction components are arranged adjacent to each other on the support frame of the circular tube belt conveyor to form a correction channel through which the conveyor belt, which is coiled into a circular tube, passes.

[0007] The present invention designs a correction component comprising a base, a correction roller disposed on the base, and a pushing device.

[0008] The present invention comprises a pushing device fixed on a base, the pushing device having a piston rod, and a first pin being provided on the piston; one end of the adjusting roller is hinged to the base via a second pin, and the other end is provided with a sliding groove, which is connected to the first pin of the piston rod of the pushing device.

[0009] The present invention is designed such that when the piston rod of the pushing device moves, the end of the adjusting roller connected to the first pin shaft moves with the piston rod, and the other end rotates around the second pin shaft, so that the adjusting roller rotates around the second pin shaft.

[0010] The present invention designs a method in which the correction component is arranged in a ring array on the support frame of the circular tube belt conveyor to form a correction channel, constraining the conveyor belt into a circular tube structure. The correction component is arranged in a ring array on one or both sides of the support frame of the circular tube belt conveyor.

[0011] The present invention designs a system in which the pushing devices on each of the adjusting rollers are interconnected through pipelines to achieve synchronous linkage of multiple sets of pushing devices.

[0012] The present invention provides a pushing device equipped with an electromagnetic reversing valve for controlling the extension and retraction direction of the pushing device, wherein the pushing device is a double-acting hydraulic cylinder or a pneumatic cylinder.

[0013] This invention also provides a belt alignment system for a circular tube conveyor, including a signal acquisition unit, a signal transmission unit, a host computer system, a power station, and an alignment device as described above. During operation, the alignment device for the circular tube conveyor has a different deflection angle for each alignment roller. The pre-set deflection angles of each alignment roller are compiled into a database and entered into the host computer system. When the signal acquisition unit collects data indicating belt misalignment, the signal transmission unit feeds this data back to the host computer system. Based on the received misalignment data, the host computer system issues a command to control the solenoid valve, causing the piston rod on the pushing device to move. The alignment rollers collectively deflect, correcting the belt alignment. After the belt returns to its correct position, the signal acquisition unit collects data and feeds it back to the host computer system, the solenoid valve resumes its operation, and automatic alignment is completed.

[0014] The power station is either a hydraulic station or a pneumatic station, and one hydraulic station or pneumatic station can simultaneously provide pressure to multiple sets of corrective roller assemblies.

[0015] The present invention designs a correction device consisting of multiple sets of correction components, which are arranged in multiple sets in the linear direction of the tube.

[0016] The present invention achieves belt alignment correction for circular tube conveyors in a simple, convenient, stable, and reliable manner. This invention employs single-point, single-control, with each pushing device controlling one alignment roller. Each alignment roller has a different offset angle, rather than controlling the rollers synchronously via roller supports. This invention offers high flexibility and accurate alignment correction. The invention utilizes a hydraulic or pneumatic synchronization circuit interconnected with the pushing devices to achieve simultaneous forward tilting and alignment correction of all alignment rollers. This simultaneous linkage provides excellent results, avoids the risks of climbing operations, ensures high safety, and minimizes the contact area between the alignment rollers and the conveyor belt. Attached Figure Description

[0017] The above and other objects and advantages of the present invention will become more fully clear from the following detailed description taken in conjunction with the accompanying drawings, wherein the same or similar elements are indicated by the same reference numerals.

[0018] Figure 1 This is the main view of the correction component structure;

[0019] Figure 2 This is a top view of the correction component structure;

[0020] Figure 3 It is an isometric view of the correction components arranged on both sides;

[0021] Figure 4 It is an isometric view of the correction components arranged on one side;

[0022] Figure 5 This is a schematic diagram of the synchronous hydraulic control principle for six sets of hydraulic cylinders connected in series.

[0023] Figure 6 This is a schematic diagram of the movement of each adjustment roller during the correction process.

[0024] In the figure, 1-support frame, 2-adjusting roller, 3-base, 4-second pin, 5-slide groove, 6-first pin, 7-pushing device, 71-piston rod, 72-joint, 8-connecting pipe, 9-pipe belt. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments. The advantages and features of the present invention will become clearer as the description unfolds. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions to the details and form of the technical solutions of the present invention can be made without departing from the spirit and scope of the invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0026] Figure 1 This is the main view of the correction component structure; Figure 2 This is a top view of the correction component structure; Figure 3 It is an isometric view of the correction components arranged on both sides; Figure 4 It is an isometric view of the correction components arranged on one side; Figure 5 This is a schematic diagram of the synchronous hydraulic control principle for six sets of hydraulic cylinders connected in series. Figure 6 This is a schematic diagram of the movement of each adjusting roller during the correction process. For example... Figures 1 to 6 As shown, this invention provides a belt alignment device for a circular tube conveyor, comprising alignment components acting on a support frame 1 of the circular tube conveyor. Multiple sets of alignment components are arranged adjacent to each other on the support frame 1, forming an alignment channel through which the tube 9, coiled into a circular tube, passes. Each alignment component can move independently, enabling multiple alignment rollers to operate simultaneously, fully utilizing the alignment capability of each alignment roller 2, and effectively improving alignment efficiency.

[0027] like Figures 1 to 4 As shown, the correction assembly includes a base 3, a correction roller 2 mounted on the base, and a pushing device 7. The pushing device 7 is fixed to the base 3 and has a piston rod 71 with a first pin 6 mounted on the piston. One end of the correction roller 2 is hinged to the base 3 via a second pin 4, and the other end has a groove 5 connected to the first pin 6 of the piston rod 71 of the pushing device 7. When the piston rod 71 of the pushing device 7 moves, the end of the correction roller connected to the first pin 71 moves with the piston rod 71, while the other end rotates around the second pin 4, causing the correction roller to rotate around the second pin 4. The correction assembly is arranged in a ring array on the support frame 1 of the circular tube belt conveyor, forming a correction channel that constrains the conveyor belt into a circular tube structure. The correction assembly is arranged in a ring array on one or both sides of the support frame 1 of the circular tube belt conveyor. The pushing devices 7 on each correction roller 2 are interconnected through pipelines to achieve synchronous linkage of multiple sets of pushing devices 7.

[0028] In this embodiment, as Figure 6 As shown, the pushing device is equipped with an electromagnetic reversing valve to control the extension and retraction direction of the pushing device 7, wherein the pushing device is a double-acting hydraulic cylinder or a pneumatic cylinder.

[0029] In this embodiment, a belt alignment system for a circular tube conveyor is provided, including a signal acquisition unit, a signal transmission unit, a host computer system, a power station, and an alignment device as described above. The alignment device for the circular tube conveyor, when in operation...

[0030] Data on the correction angle of each idler roller in the correction system is collected through calculation, simulation, and simulated measurement. Since the deflection angle of each correction idler roller 2 is different, the pre-set deflection angles of each correction idler roller are compiled into a database and entered into the host computer system. When the signal acquisition unit collects data on the deviation of the belt 9, the signal transmission unit feeds the data back to the host computer system. The host computer system issues a command based on the received deviation data to control the electromagnetic reversing valve to operate. The piston rod 71 on the pushing device 7 starts to operate, and the correction idler rollers 2 deflect collectively to correct the belt 9. After the belt 9 returns to the correct position, the signal acquisition unit collects data and feeds it back to the host computer system. The electromagnetic valve resumes operation, and the automatic correction is completed.

[0031] In a specific embodiment, the power station can be a hydraulic station or a pneumatic station, wherein one hydraulic station or pneumatic station can simultaneously provide pressure to multiple sets of corrective roller assemblies.

[0032] In this embodiment, for example, as in this embodiment Figure 5 This paper demonstrates a synchronous hydraulic control connection method using six sets of hydraulic cylinders connected in series. In practical implementation, regardless of the number of eccentric rollers 2 on a single support frame 1, synchronous clockwise or counterclockwise movement can be guaranteed. The extension and retraction direction of the hydraulic rods can be controlled by an electromagnetic directional valve. Figure 5 As shown, the hydraulic cylinder's forward and backward movement is controlled by the three-position four-way directional valve located at the bottom. The hydraulically controlled check valve, composed of a two-position three-way directional valve and a check valve, is mainly used for the initial oil filling process. Since the pushing device is initially in an empty cavity state, the hydraulically controlled check valve is needed to control the hydraulic oil to sequentially fill the pushing device 71#, 2#, 3#... The dotted line represents the control oil circuit of the check valve.

[0033] In this embodiment, combined with Figure 5 and Figure 6 As shown, taking a single-row arrangement of adjusting idlers as an example, the above-mentioned correction principle is illustrated. When the conveyor belt deviates, the six adjusting idlers collectively tilt forward, simultaneously generating correction angles θ1 to θ6. For instance, the uppermost adjusting idler generating a correction angle of θ1, during its rotation, uses friction to straighten the conveyor belt. The other five adjusting idlers deflect according to preset angles θ2 to θ6, working together to correct and straighten the conveyor belt. Multiple sets of such adjusting components are arranged at intervals along the conveyor belt, fully considering different deviations in the linear direction for correction. Furthermore, each adjusting component fully considers the different radial forces on the conveyor belt at the same cross-section. Different adjusting idlers in a set of adjusting components use different correction angles for correction, ensuring accurate correction from a line to a surface system, thus improving the efficiency and accuracy of the correction work.

[0034] In the above-mentioned circular tube belt conveyor correction system, the hydraulic cylinder of the pushing device controls the extension and retraction direction through an electromagnetic reversing valve. The hydraulic cylinder of the pushing device 7 uses a three-position four-way reversing valve to control the forward / backward movement of the pushing device 7. One hydraulic station can simultaneously provide pressure to multiple adjusting roller 2 assemblies on the frame. To ensure the swing stability of the adjusting roller 2, the pushing device is preferably a double-acting oil cylinder or air cylinder. In other embodiments, a single-acting lever can be used instead of a double-acting cylinder.

[0035] In the aforementioned circular tube belt conveyor correction system, a connector 72 is also provided in the hydraulic circuit. The connector 72 includes a female connector and a male connector. The female connector is installed on the rear cover of the pushing device 7 and is connected to the male connector hydraulic connection pipe 8 to form a complete hydraulic circuit. The male connector is open when connected to the female connector and locks when disconnected. The connector 72 can be a quick-connect connector 72 or a standard connector 72. Using a quick-connect connector 72 offers the advantages of immediate use upon insertion and self-locking upon disconnection.

[0036] In other embodiments, the correction method can also employ either electric or manual modes. In electric mode, hydraulic transmission uses an electric directional valve and an electric hydraulic pump to control the movement of the correction roller 2 for correction. In manual mode, hydraulic transmission uses a manual directional valve and a hand-operated jack to control the movement of the correction roller 2 for correction. When power is difficult to obtain along the route, the manual mode should be used.

[0037] In actual production, if power supply along the line is difficult, manual control can be used. The male and female ends of the quick-connect coupling 72 are connected to form a complete hydraulic circuit. The electromagnetic directional valve is then manually controlled to move the piston rod 71. Due to interconnection, the piston rods 71 ​​of multiple sets of pushing devices 7 extend forward or retract backward simultaneously. All piston rods 71 ​​drive their respective adjusting rollers 2 to swing relative to the hinge axis, causing all adjustments to tilt forward simultaneously to correct the deviation of the conveyor belt 9, eliminating the need for individual operation of each adjusting roller 2. Once several adjusting rollers 2 are adjusted to the appropriate swing angle, the neutral position function of the directional valve is used to maintain pressure, preventing the piston rod 71 from returning to its original position. Then, the coupling 72 is disconnected, locking the coupling 72 to prevent oil leakage. The deviation correction work is thus completed.

[0038] The present invention achieves belt alignment correction for a circular tube conveyor 9 using the above-described method. It is simple, convenient, stable, and reliable. This invention employs single-point, single-control, with each pushing device 7 controlling one alignment roller 2. Each alignment roller 2 has a different offset angle, rather than controlling the rollers synchronously via roller supports. This invention offers good flexibility and accurate alignment correction. The invention utilizes a hydraulic or pneumatic synchronization circuit interconnected by the pushing devices 7 to achieve simultaneous forward tilting and alignment correction of all alignment rollers 2. This simultaneous linkage provides excellent results, avoids the risks of climbing operations, ensures high safety, and minimizes the linear contact area between the alignment rollers 2 and the tube conveyor 9.

[0039] The implementation schemes in the above embodiments can be further combined or replaced, and the embodiments are merely descriptions of preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention. Various changes and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A belt alignment device for a circular tube belt conveyor, characterized in that: The system includes a correction assembly that acts on the support frame of a cylindrical belt conveyor. Multiple sets of the correction assemblies are arranged end-to-end on the support frame to form a correction channel through which the conveyor belt, coiled into a cylindrical shape, passes. The correction assembly includes a base, a correction roller mounted on the base, and a pushing device. The correction roller is controlled by a single point, with each pushing device controlling one correction roller. The pushing device is fixed to the base and has a piston rod with a first pin. One end of the correction roller is hinged to the base via a second pin, and the other end has a groove that connects to the first pin of the piston rod of the pushing device.

2. The belt alignment device for a circular tube belt conveyor according to claim 1, characterized in that: When the piston rod of the pushing device moves, the end of the adjusting roller connected to the first pin shaft moves with the piston rod, and the other end rotates around the second pin shaft, causing the adjusting roller to rotate around the second pin shaft.

3. The belt alignment device for a circular tube belt conveyor according to claim 2, characterized in that: The correction components are arranged in a ring array on the support frame of the circular tube belt conveyor, forming a correction channel that constrains the conveyor belt into a circular tube structure. The correction components are arranged in a ring array on one or both sides of the support frame of the circular tube belt conveyor.

4. The belt alignment device for a circular tube belt conveyor according to claim 3, characterized in that: The shifting devices on each of the eccentric rollers are interconnected through pipelines to achieve synchronous linkage of multiple shifting devices.

5. The belt alignment device for a circular tube belt conveyor according to claim 4, characterized in that: The pushing device is equipped with an electromagnetic reversing valve to control the extension and retraction direction of the pushing device, wherein the pushing device is a double-acting hydraulic cylinder or a pneumatic cylinder.

6. A belt alignment system for a circular tube conveyor, comprising a signal acquisition unit, a signal transmission unit, a host computer system, a power station, and the alignment device as described in claim 5, characterized in that: When the correction device of the circular tube belt conveyor is working, the deflection angle of each correction roller is different.

7. The belt alignment system for a circular tube conveyor according to claim 6, characterized in that: The power station is a hydraulic station or a pneumatic station, and one hydraulic station or pneumatic station can provide pressure to multiple sets of corrective roller assemblies at the same time.

8. The belt alignment system for a circular tube belt conveyor according to claim 6 or 7, characterized in that: The correction device is arranged in multiple sets along the linear direction of the tube.

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