Passive hydraulic automatic deviation rectifying device of horizontal turning belt conveyor

Abstract

The utility model relates to the technical field of material conveying, in particular to a passive hydraulic automatic deviation rectifying device of a horizontal turning belt conveyor, which comprises a conveyor fixing frame, a carrier roller support is correspondingly hinged to the middle of the top of the conveyor fixing frame, and a carrier roller component used for supporting a belt is arranged on the top surface of the carrier roller support. The conveyor fixing frame is provided with a hydraulic push rod used for driving the carrier roller support to rotate. Roller gear pumps are arranged at the positions, corresponding to the inner side and the outer side of the belt, of the conveyor fixing frame so that the hydraulic push rods can be driven to stretch or retract under the effect of the belt, and then the inner ends or the outer ends of the carrier roller supports can be lifted. When the conveying belt deviates, the roller gear pumps on the corresponding sides can drive the hydraulic push rods to work, so that the carrier roller supports on the corresponding sides are lifted, the conveying belt returns under the action of gravity, and the purpose of automatic deviation correction is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of material transmission, in particular to a passive hydraulic automatic deviation correcting device for a horizontal turning belt conveyor. Background Art

[0002] When a horizontal turning belt conveyor makes a horizontal turn, it is difficult to satisfy the centripetal force required for the turn by relying solely on the friction between the roller group and the conveyor belt, which can easily cause insufficient friction and cause the conveyor belt to deviate inward.

[0003] In order to solve the problem of insufficient centripetal force, the usual practice is to raise the inner side of the roller group to form a certain inclination angle, but this inclination angle can only be adjusted manually when the equipment is installed or when adjustment is particularly needed. Since the centripetal force required for the conveyor is different when it is running under different operating conditions (such as full load, half load, no load, no load start, full load start, etc.), the required inclination angle of the roller group is also different. The artificially set fixed inclination angle is prone to different degrees of deviation under different operating conditions of the equipment. When the deviation is too large, it is likely to cause tearing damage to the conveyor belt or even overall damage to the conveyor.

[0004] Therefore, we designed a passive hydraulic automatic deviation correction device for horizontal turning belt conveyor. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a passive hydraulic automatic deviation-correcting device for a horizontal turning belt conveyor.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] A passive hydraulic automatic deviation-correcting device for a horizontal turning belt conveyor comprises a conveyor fixing frame, a roller bracket being hingedly connected to the middle of the top of the conveyor fixing frame, and a roller assembly for supporting the belt being arranged on the top surface of the roller bracket; the conveyor fixing frame is provided with a hydraulic push rod for driving the roller bracket to rotate; the conveyor fixing frame is provided with roller gear pumps at positions corresponding to the inner and outer sides of the belt, so as to drive the hydraulic push rod to extend or contract under the action of the belt, thereby raising the inner end or the outer end of the roller bracket.

[0008] Preferably, the roller assembly includes a horizontally arranged middle roller, and both ends of the middle roller are provided with side rollers which are arranged tilted up and down, and the end of the side roller away from the middle roller is the upper end.

[0009] Preferably, the hydraulic push rod fixing portion is hinged to the conveyor fixing frame, and the hydraulic push rod push rod portion is hinged to the roller bracket.

[0010] Preferably, both sides of the top surface of the conveyor fixing frame are provided with mounting columns extending upward, and the roller gear pump is installed on the upper ends of the corresponding mounting columns.

[0011] Preferably, a hydraulic delay device is also installed at the upper end of the mounting column, and the hydraulic delay device is correspondingly connected to the hydraulic push rod and the roller gear pump on the same side.

[0012] Preferably, the hydraulic delay device includes a device fixedly installed on the oil cylinder, the inner cavity of the oil cylinder is sealed and slidably connected with a piston plate, a delay spring is provided between one end of the inner cavity of the oil cylinder and the piston plate, and the other end of the oil cylinder is respectively connected to the hydraulic push rod and the roller gear pump on the same side.

[0013] Preferably, an adjusting bolt is threadedly connected to one end of the oil cylinder corresponding to the delay spring, and an adjusting plate is provided at the inner end of the adjusting bolt, and the delay spring is located between the adjusting plate and the piston plate.

[0014] Preferably, an elastic plate is provided at the upper end of the mounting column, and the roller gear pump is mounted on the corresponding elastic plate.

[0015] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0016] 1. When the conveyor belt deviates, the roller gear pump on the corresponding side can drive the hydraulic push rod to operate, so that the roller bracket on the corresponding side is lifted, and under the action of gravity, the conveyor belt returns to its original position, achieving the purpose of automatic deviation correction;

[0017] 2. The setting of the hydraulic delay device: when the roller gear pump pumps oil to the hydraulic push rod, the oil cylinder in the hydraulic delay device can store a certain amount of oil; when the conveyor belt is separated from the roller of the roller gear pump, the oil stored in the oil cylinder flows to the hydraulic push rod under the action of the delay spring, so that the hydraulic push rod can continue to operate for a certain period of time, allowing the conveyor belt to return to the ideal working position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 It is a left view of the utility model;

[0021] Figure 4 This is a structural principle diagram of the hydraulic delay device in the utility model.

[0022] In the figure: 1. Conveyor fixing frame; 2. Roller bracket; 3. Roller assembly; 31. Middle roller; 32. Side roller; 4. Hydraulic push rod; 5. Roller gear pump; 6. Mounting column; 7. Hydraulic delay device; 71. Cylinder; 72. Piston plate; 73. Delay spring; 74. Adjusting bolt; 75. Adjusting plate; 8. Elastic plate. DETAILED DESCRIPTION

[0023] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0024] Embodiment 1, in combination with the attached Figure 1-3 A passive hydraulic automatic deviation correction device for a horizontal turning belt conveyor includes a conveyor fixing frame 1, a roller bracket 2 is hingedly connected to the middle of the top of the conveyor fixing frame 1, and a roller assembly 3 for supporting the belt is provided on the top surface of the roller bracket 2; specifically, the middle position of the bottom of the roller assembly 3 is hinged to the conveyor fixing frame 1; as needed, an ear plate is provided at the middle position of the bottom of the roller assembly 3, and is hinged to the conveyor fixing frame 1 through the ear plate.

[0025] The conveyor fixing frame 1 is provided with a hydraulic push rod 4 for driving the roller bracket 2 to rotate; the conveyor fixing frame 1 is provided with a roller gear pump 5 at the positions corresponding to the inner and outer sides of the belt, so as to drive the hydraulic push rod 4 to extend or contract under the action of the belt, thereby raising the inner end or the outer end of the roller bracket 2.

[0026] As required, both sides of the top surface of the conveyor fixing frame 1 are provided with mounting columns 6 extending upward, and the roller gear pump 5 is installed on the upper ends of the corresponding mounting columns 6 .

[0027] Furthermore, the fixed portion of the hydraulic push rod 4 is hinged to the conveyor fixed frame 1 , and the push rod portion of the hydraulic push rod 4 is hinged to the roller bracket 2 .

[0028] It should be noted that: when the hinge center of the hydraulic push rod 4 and the roller bracket 2 is located below the rotation center of the roller bracket 2, and the hydraulic push rod 4 is located on the outer side of the conveyor fixed frame 1, the outer roller gear pump 5 pumps oil to the hydraulic push rod 4, and the hydraulic push rod 4 contracts.

[0029] It should be noted that: when the hinge center of the hydraulic push rod 4 and the roller bracket 2 is located below the rotation center of the roller bracket 2, and the hydraulic push rod 4 is located on the inner side of the conveyor fixed frame 1, the outer roller gear pump 5 pumps oil to the hydraulic push rod 4, and the hydraulic push rod 4 extends.

[0030] It should be noted that: when the hinge center of the hydraulic push rod 4 and the roller bracket 2 is located above the rotation center of the roller bracket 2, and the hydraulic push rod 4 is located on the outer side of the conveyor fixed frame 1, the outer roller gear pump 5 pumps oil to the hydraulic push rod 4, and the hydraulic push rod 4 extends.

[0031] It should be noted that: when the hinge center of the hydraulic push rod 4 and the roller bracket 2 is located above the rotation center of the roller bracket 2, and the hydraulic push rod 4 is located on the inner side of the conveyor fixed frame 1, the outer roller gear pump 5 pumps oil to the hydraulic push rod 4, and the hydraulic push rod 4 contracts.

[0032] The following example is used to illustrate that when the hinge center of the hydraulic push rod 4 and the roller bracket 2 is located below the rotation center of the roller bracket 2, and the hydraulic push rod 4 is located on the inner side of the conveyor fixed frame 1, the outer roller gear pump 5 pumps oil to the hydraulic push rod 4, and the hydraulic push rod 4 extends. Figure 1 When the conveyor belt deviates to the left during operation, the conveyor belt touches the roller gear pump 5 on the left, and the roller of the roller gear pump 5 on the left rotates under the action of the conveyor belt, so that the roller gear pump 5 on the left starts to pump oil to the hydraulic push rod 4, and the hydraulic push rod 4 contracts, thereby driving the roller bracket 2 to rotate clockwise. At this time, the left side of the roller bracket 2 is lifted, and the conveyor belt and the materials thereon deviate to the right under the action of gravity to achieve the purpose of deviation correction, until the conveyor belt is separated from the roller of the roller gear pump 5 on the left.

[0033] Embodiment 2, combined with the attached Figure 1-3 A passive hydraulic automatic deviation correction device for a horizontal turning belt conveyor is disclosed. Based on the first embodiment, in order to increase the conveying capacity of the conveyor belt, the conveyor belt adopts a V-shape. At this time, the roller assembly 3 includes a horizontally arranged middle roller 31, and both ends of the middle roller 31 are provided with side rollers 32 arranged inclined up and down, and the end of the side roller 32 away from the middle roller 31 is the upper end.

[0034] Furthermore, the middle roller 31 and the side rollers 32 are both rotatably connected to the roller bracket 2 .

[0035] Embodiment 3, for this purpose, in conjunction with the attached Figure 1-4 , a passive hydraulic automatic deviation correction device for a horizontal turning belt conveyor, based on embodiment one or two, because in the above embodiment, when the conveyor belt detaches from the roller of the roller gear pump 5, the roller gear pump 5 almost simultaneously stops providing hydraulic power to the hydraulic push rod 4. At this time, although the conveyor belt does not deviate seriously, it fails to return to the ideal working position.

[0036] In this embodiment, a hydraulic delay device 7 is also installed at the upper end of the mounting column 6, and the hydraulic delay device 7 is correspondingly connected to the hydraulic push rod 4 and the roller gear pump 5 on the same side.

[0037] Furthermore, the hydraulic delay device 7 includes a device fixedly installed on a cylinder 71, the inner cavity of the cylinder 71 is sealed and slidably connected with a piston plate 72, a delay spring 73 is provided between one end of the inner cavity of the cylinder 71 and the piston plate 72, and the other end of the cylinder 71 is respectively connected to the hydraulic push rod 4 and the roller gear pump 5 on the same side.

[0038] In this way, when the roller gear pump 5 pumps oil to the hydraulic push rod 4, the oil first enters the oil cylinder 71. At this time, a part of the oil tends to operate the hydraulic push rod 4, and the other part pushes the piston plate 72 and overcomes the delay spring 73 to remain in the oil cylinder 71. When the conveyor belt detaches from the roller of the roller gear pump 5, the roller gear pump 5 stops working, the delay spring 73 starts to reset and drives the piston plate 72 to a certain extent, so that the oil in the oil cylinder 71 continues to flow to the hydraulic push rod 4, so that the hydraulic push rod 4 can continue to operate for a certain period of time, so that the conveyor belt returns to the ideal working position.

[0039] Furthermore, an adjusting bolt 74 is screwed to one end of the oil cylinder 71 corresponding to the time delay spring 73, and an adjusting plate 75 is provided at the inner end of the adjusting bolt 74, and the time delay spring 73 is located between the adjusting plate 75 and the piston plate 72. In this way, the initial compression amount of the time delay spring 73 can be adjusted by adjusting the adjusting bolt 74, and the oil storage amount in the oil cylinder 71 when the roller gear pump 5 is working can be adjusted, and the delay length of the hydraulic push rod 4 can be adjusted when the roller gear pump 5 is not working.

[0040] Embodiment 4, in combination with the attached Figure 1-4 , a passive hydraulic automatic deviation correction device for a horizontal turning belt conveyor, based on the first embodiment, an elastic plate 8 is provided at the upper end of the mounting column 6, and a roller gear pump 5 is mounted on the corresponding elastic plate 8. In this way, when the conveyor belt approaches the roller gear pump 5, a buffering effect can be achieved.

[0041] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A passive hydraulic automatic deviation correction device for a horizontal turning belt conveyor, characterized in that: The conveyor frame comprises a conveyor fixing frame (1), wherein a roller support (2) is hingedly connected to the middle of the top of the conveyor fixing frame (1), and a roller assembly (3) for supporting a belt is provided on the top surface of the roller support (2); the conveyor fixing frame (1) is provided with a hydraulic push rod (4) for driving the roller support (2) to rotate; and the conveyor fixing frame (1) is provided with roller gear pumps (5) at positions corresponding to the inner and outer sides of the belt, so as to drive the hydraulic push rod (4) to extend or contract under the action of the belt, thereby raising the inner end or the outer end of the roller support (2).

2. According to claim 1, a passive hydraulic automatic deviation correction device for a horizontal turning belt conveyor is characterized in that: The roller assembly (3) comprises a middle roller (31) arranged horizontally, and both ends of the middle roller (31) are provided with side rollers (32) arranged obliquely up and down, and the end of the side roller (32) facing away from the middle roller (31) is the upper end.

3. The passive hydraulic automatic deviation correction device for a horizontal curved belt conveyor according to claim 1 is characterized in that: The fixing portion of the hydraulic push rod (4) is hinged to the conveyor fixing frame (1) correspondingly, and the push rod portion of the hydraulic push rod (4) is hinged to the roller bracket (2) correspondingly.

4. The passive hydraulic automatic deviation-correcting device for a horizontal curved belt conveyor according to claim 1 is characterized in that: Both sides of the top surface of the conveyor fixing frame (1) are provided with mounting columns (6) extending upwards, and the roller gear pump (5) is mounted on the upper ends of the corresponding mounting columns (6).

5. The passive hydraulic automatic deviation correction device for a horizontal curved belt conveyor according to claim 4 is characterized in that: A hydraulic delay device (7) is also installed at the upper end of the mounting column (6), and the hydraulic delay device (7) is correspondingly connected to the hydraulic push rod (4) and the roller gear pump (5) on the same side.

6. The passive hydraulic automatic deviation-correcting device for a horizontal curved belt conveyor according to claim 5 is characterized in that: The hydraulic delay device (7) comprises a device fixedly mounted on an oil cylinder (71), the inner cavity of the oil cylinder (71) being sealingly and slidably connected to a piston plate (72), a delay spring (73) being provided between one end of the inner cavity of the oil cylinder (71) and the piston plate (72), and the other end of the oil cylinder (71) being respectively connected to a hydraulic push rod (4) and a roller gear pump (5) on the same side.

7. The passive hydraulic automatic deviation-correcting device for a horizontal curved belt conveyor according to claim 6 is characterized in that: An adjusting bolt (74) is threadedly connected to one end of the oil cylinder (71) corresponding to the time delay spring (73), and an adjusting plate (75) is provided at the inner end of the adjusting bolt (74). The time delay spring (73) is located between the adjusting plate (75) and the piston plate (72).

8. The passive hydraulic automatic deviation-correcting device for a horizontal curved belt conveyor according to claim 4 is characterized in that: An elastic plate (8) is provided at the upper end of the mounting column (6), and the roller gear pump (5) is mounted on the corresponding elastic plate (8).

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